MULTI F MULTI F MAX Heat Pump System Engineering Manual Multi-Zone Heat Pump Systems 1.5 to 4.
Proprietary Data Notice This document, as well as all reports, illustrations, data, information, and other materials are the property of LG Electronics U.S.A., Inc., and are disclosed by LG Electronics U.S.A., Inc., only in confidence. This document is for design purposes only. DFS-EM-AJ-001-US 014C25 For continual product development, LG reserves the right to change specifications without notice. ©LG Electronics Inc.
MULTI F MULTI F MAX TABLE OF CONTENTS About LG Electronics, Inc...................................................................... 4 Multi-Zone Systems................................................................................ 4 Unit Nomenclature.................................................................................. 6 Outdoor Unit Overview.......................................................................... 7 Indoor Unit Overview.....................................................
Convergence of Technology, Innovation, Flexibility, & Style Multi F and Multi F MAX Heat Pump System Engineering Manual About LG Electronics, Inc. LG Electronics, Inc. is a global leader and technology innovator in consumer electronics, mobile communications, and home appliances, employing more than 213,000 people in more than 60 countries worldwide. LG Electronics, Inc. comprises five business units—Home Entertainment, Mobile Communications, Air Conditioning, Business Solutions, and Home Appliance.
Product Introduction “Unit Nomenclature” on page 6 “Outdoor Unit Overview” on page 7 “Indoor Unit Overview” on page 8 “Controls and Options Overview” on page 9
MULTI F MULTI F MAX Unit Nomenclature Multi-Zone Systems — Indoor Units and Outdoor Units Multi F and Multi F MAX Heat Pump System Engineering Manual L M AN 12 7 HVT M BD 36 2 0 L = LG Type: M = Multi-Zone Component: AN: Art Cool™ Wall-Mounted Indoor Unit N: Standard Wall-Mounted Indoor Unit CN: Four-Way Ceiling-Cassette Indoor Unit DN: Ceiling-Concealed Duct (Low Static) Indoor Unit HN: Ceiling-Concealed Duct (High Static) Indoor Unit VN: Vertical-Horizontal Air Handling Indoor Unit U: Outdo
MULTI F MULTI F MAX Outdoor Unit Overview Table 1: Summary Data—Multi F / Multi F MAX Outdoor Units Outdoor Unit Type Model Number1 Dimensions (W x H x D) (inches) Nominal Cooling Capacity Btu/h2 Net Weight (lbs.) No. of Connectable Indoor Units3 Pipe Connections (inches, O.D.
MULTI F MULTI F MAX Indoor Unit Overview Table 2: Summary Data—Multi F Indoor Units.
MULTI F MULTI F MAX Controls and Options Overview Table 3: Summary Data—Zone Controllers. Zone Controller Name Simple Controller with Mode Selection Simple Controller with Mode Selection PQRCVCL0 AKB72955816 164 Allows control of indoor unit ON / OFF, operation mode, fan speed, and temperature setpoint for up to 16 indoor units. Included with Ceiling-Concealed Duct (High Static1) and Vertical-Horizontal Air Handling1 indoor units; optional accessory for all other indoor unit types.
MULTI F MULTI F MAX Controls and Options Overview Table 4: Summary Data—Zone Controller Communication Cables. Name Model No. Max. Wire Length (ft.) Wired Remote Group Control Cable Assembly PZCWRCG3 32 Required when grouping multiple indoor units with a single zone controller. Wired Remote / Group Control Extension Cable PZCWRC1 32 Increases the distance between a remote controller and an indoor unit, or between indoor units in a control group.
MULTI F MULTI F MAX Controls and Options Overview Table 6: Summary Data—Central Controllers (Connect to the Outdoor Unit Through the PI-485 Board (accessory, sold separately). No. of Binary Devices Systems Devices Comm. per per Signals Power / Central Controller Name Model No. per Comm. Description Comm.
MULTI F MULTI F MAX Controls and Options Overview Table 8: Indoor Units—Functions, Controls and Options. Airflow Operation Controllers Multi F and Multi F MAX Heat Pump System Engineering Manual Indoor Unit Type Air supply outlets Airflow direction (left/right) Airflow direction (up/down) Auto swing (left/right) Auto swing (up/down) Airflow steps (fan/cool/heat) Chaos wind (random fan speed) Jet-cool/heat Swirl wind Washable anti-fungal1 Plasma2 Ventilation Drain pump E.S.P.
MULTI F MULTI F MAX Controls and Options Overview Table 9: Multi F MAX Outdoor Unit Accessories Overview. Multi F MAX Accessory Name Model No. Two-Port Branch Distribution Unit PMBD3620 Distributes refrigerant from Multi F MAX outdoor unit from one (1) to two (2) indoor units (maximum 24,000 Btu/h for each port). Three-Port Branch Distribution Unit PMBD3630 Distributes refrigerant from Multi F MAX outdoor unit from one (1) to three (3) indoor units (maximum 24,000 Btu/h for each port).
Multi F and Multi F MAX Heat Pump System Engineering Manual MULTI F MULTI F MAX 14 | Introduction Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Multi F Outdoor Unit data “Product Features and Benefits” on page 16 “Mechanical Specifications” on page 17 “General Data” on page 18 “Dimensions” on page 20 “Rated Cooling Combination Tables” on page 23 “Rated Heating Combination Tables” on page 26 “Cooling Capacity Tables” on page 29 “Heating Capacity Tables” on page 81 “Electrical Data” on page 116 “Acoustic Data” on page 116 “Refrigerant Flow Diagrams” on page 117 “Wiring Diagrams” on page 120 “Operation Range” on page 123
MULTI F MULTI F MAX Multi F Systems Features and Benefits Multi F and Multi F MAX Heat Pump System Engineering Manual The multiple piping of Multi F systems can support two, three or four indoor units that are typically mounted in separate rooms. Compact refrigerant pipes work in tandem with wiring to link the outdoor unit with all indoor units directly. Most indoor units include its own remote control, allowing the user to set the temperature individually in different rooms.
MULTI F MULTI F MAX Multi F Systems Mechanical Specifications Multi F Heat Pump Condensing Units General Figure 4: Multi F LMU187HV and LMU247HV Outdoor Units. Figure 5: Multi F LMU369HV Outdoor Unit. A Multi F multi-zone system is comprised of one heat pump outdoor unit connected to two, three, or four indoor units using a shared refrigerant piping circuit between the outdoor unit and each indoor unit, and includes integrated controls supplied by LG.
MULTI F MULTI F MAX Multi F Outdoor Unit Multi F and Multi F MAX Heat Pump System Engineering Manual General Data Table 11: Multi F Outdoor Unit Specifications. Model Number Rated Cooling Capacity (Btu/h)1 Rated Heating Capacity (Btu/h)1 Operating Range Cooling (°F DB) Heating (°F WB) Compressor Inverter Quantity Oil/Type Fan (Side Discharge) Type Motor Output (W) x Qty. Motor/Drive Maximum Air Volume (CFM) Unit Data Refrigerant Type Refrigerant Control/Location Min. Number Indoor Units/System2 Max.
MULTI F MULTI F MAX Multi F Outdoor Unit General Data Table 12: LMU187HV Efficiency Ratings.1,2 System Combined With LMU187HV Non-ducted Indoor Units Ducted Indoor Units Mixed Non-ducted and Ducted Indoor Units Rated Cooling EER Rated Heating COP Low Heating COP Energy Capacity (Btu/h) (95°F) SEER Capacity (Btu/h) (47°F) HSPF Capacity (Btu/h) (17°F) Star 15,600 14.00 21.0 17,000 3.90 9.20 10,000 2.9 Yes 14,800 11.90 17.7 16,800 3.80 8.80 9,900 2.8 No 15,200 12.95 19.35 16,900 3.
MULTI F MULTI F MAX Multi F Outdoor Unit Dimensions Figure 6: LMU187HV External Dimensions. 29/32 34-1/4 3 Liquid pipe connection 4 Power & transmission connection 5 Earth screw 6-13/32 13-3/8 12-19/32 Part Name Air discharge grille Gas pipe connection 12-19/32 1 11-13/16 30-15/16 Ø2 0-1 5/3 2 4 31-13/16 2 10-1/4 3 20 | MULTI F Outdoor Unit 2 3-5/32 13-7/8 3 12-7/16 2-9/16 2 15-1/2 7/8 Multi F and Multi F MAX Heat Pump System Engineering Manual No.
MULTI F MULTI F MAX Multi F Outdoor Unit Dimensions Figure 7: LMU247HV External Dimensions. 29/32 34-1/4 2-3/8) 6-13/32 13-3/8 12-19/32 6-3/8 14-3/16 21-1/2 No.
MULTI F MULTI F MAX Multi F Outdoor Unit Dimensions Figure 8: LMU369HV External Dimensions. 35-7/16 16-11/16 15-9/16 Part Name Air discharge grille Gas pipe connection Liquid pipe connection No.
MULTI F MULTI F MAX Performance Data Rated Cooling Combination Tables Table 15: LMU187HV with Non-Ducted, Ducted, and Mixed Indoor Units — Rated Cooling Combination Table. Indoor Unit Combination Room Capacity Total Capacity Input (W) No. of (kBtu/h) Indoor EER SEER Rated Maximum Units IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Min. Rated Max.
MULTI F MULTI F MAX Performance Data Rated Cooling Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 17: LMU369HV with Non-Ducted and Ducted Indoor Units — Rated Cooling Combination Table. Indoor Unit Combination Room Capacity Total Capacity No. of (kBtu/h) Indoor Rated Maximum Units IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum 1 2 3 4 (Btu/h) (Btu/h) (Btu/h) (Btu/h) Btu/h kW Btu/h kW Btu/h kW Non-Ducted Indoor Units Input (W) Min. Rated Max.
MULTI F MULTI F MAX Performance Data Rated Cooling Combination Tables Table 18: LMU369HV with Mixed Indoor Units — Rated Cooling Combination Table. Indoor Unit Combination Room Capacity Total Capacity No.
MULTI F MULTI F MAX Performance Data Rated Heating Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 19: LMU187HV with Non-Ducted, Ducted, and Mixed Indoor Units — Rated Heating Combination Table. Indoor Unit Combination Room Capacity Total Capacity Input (W) No. of (kBtu/h) Indoor EER SEER Rated Maximum Units IDU IDU IDU IDU Total Unit 1 Unit 2 Unit 3 Unit 4 Minimum Min. Rated Max.
MULTI F MULTI F MAX Performance Data Rated Heating Combination Tables Table 21: LMU369HV with Non-Ducted and Ducted Indoor Units — Rated Heating Combination Table. Indoor Unit Combination Room Capacity Total Capacity No.
MULTI F MULTI F MAX Performance Data Rated Heating Combination Tables Multi F and Multi F MAX Heat Pump System Engineering Manual Table 22: LMU369HV with Mixed Indoor Units — Rated Heating Combination Table. Indoor Unit Combination Room Capacity Total Capacity No.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 23: LMU187HV Cooling Capacity Table —Non-Ducted Indoor Units. Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9 9 + 12 15.29 15.28 15.27 15.26 15.25 15.23 15.22 15.21 15.20 15.19 15.18 15.16 14.80 14.43 14.07 13.71 13.32 12.99 12.67 12.35 12.02 11.83 11.76 15.29 15.28 15.27 15.26 15.25 15.23 15.22 15.21 15.20 15.19 15.18 15.16 14.80 14.43 14.07 13.71 13.32 12.99 12.67 12.35 12.02 11.83 11.76 0.70 0.71 0.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 24: LMU187HV Cooling Capacity Table —Non-Ducted (continued) / Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 25: LMU187HV Cooling Capacity Table —Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 12 12 + 12 14.51 14.50 14.49 14.48 14.46 14.45 14.44 14.43 14.42 14.41 14.40 14.39 14.04 13.69 13.35 13.01 12.64 12.33 12.02 11.71 11.40 11.22 11.16 14.51 14.50 14.49 14.48 14.46 14.45 14.44 14.43 14.42 14.41 14.40 14.39 14.04 13.69 13.35 13.01 12.64 12.33 12.02 11.71 11.40 11.22 11.16 0.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 26: LMU187HV Cooling Capacity Table —Mixed Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9 Two (2) Mixed Indoor Units 9 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 14.90 14.89 14.88 14.87 14.86 14.84 14.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 27: LMU187HV Cooling Capacity Table —Mixed Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) Two (2) Mixed Indoor Units 12 + 12 14.90 14.89 14.88 14.87 14.86 14.84 14.83 14.82 14.81 14.80 14.79 14.78 14.42 14.06 13.71 13.36 12.98 12.66 12.35 12.03 11.71 11.52 11.46 0.74 0.75 0.76 0.77 0.78 0.79 0.80 0.81 0.82 0.83 0.85 0.86 0.90 0.95 0.99 1.04 1.09 1.13 1.18 1.23 1.27 1.30 1.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 28: LMU247HV Cooling Capacity Table — Non-Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9 Two (2) Non-Ducted Indoor Units 9 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 16.67 16.65 16.64 16.63 16.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 29: LMU247HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 12 9 + 18 18.82 18.81 18.79 18.78 18.76 18.75 18.74 18.72 18.71 18.69 18.68 18.66 18.21 17.77 17.32 16.88 16.39 15.99 15.59 15.19 14.80 14.56 14.48 18.82 18.81 18.79 18.78 18.76 18.75 18.74 18.72 18.71 18.69 18.68 18.66 18.21 17.77 17.32 16.88 16.39 15.99 15.59 15.19 14.80 14.56 14.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 30: LMU247HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 31: LMU247HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 9 + 12 9 + 12 + 12 18.82 18.81 18.79 18.78 18.76 18.75 18.74 18.72 18.71 18.69 18.68 18.66 18.21 17.77 17.32 16.88 16.39 15.99 15.59 15.19 14.80 14.56 14.48 18.82 18.81 18.79 18.78 18.76 18.75 18.74 18.72 18.71 18.69 18.68 18.66 18.21 17.77 17.32 16.88 16.39 15.99 15.59 15.19 14.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 32: LMU247HV Cooling Capacity Table — Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9 Two (2) Ducted Indoor Units 9 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 16.27 16.26 16.25 16.24 16.22 16.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 33: LMU247HV Cooling Capacity Table — Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 12 9 + 18 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.57 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 34: LMU247HV Cooling Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 35: LMU247HV Cooling Capacity Table — Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 9 + 12 9 + 12 + 12 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.57 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 36: LMU247HV Cooling Capacity Table — Mixed Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9 Two (2) Mixed Indoor Units 9 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 16.47 16.46 16.44 16.43 16.42 16.41 16.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 37: LMU247HV Cooling Capacity Table — Mixed Indoor Units. Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 12 9 + 18 18.23 18.22 18.21 18.19 18.18 18.16 18.15 18.14 18.12 18.11 18.09 18.08 17.65 17.21 16.78 16.35 15.88 15.49 15.11 14.72 14.33 14.10 14.02 18.23 18.22 18.21 18.19 18.18 18.16 18.15 18.14 18.12 18.11 18.09 18.08 17.65 17.21 16.78 16.35 15.88 15.49 15.11 14.72 14.33 14.10 14.02 0.95 0.96 0.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 38: LMU247HV Cooling Capacity Table — Mixed Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) Two (2) Mixed Indoor Units 12 + 18 Three (3) Mixed Indoor Units 9+9+9 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 18.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 39: LMU247HV Cooling Capacity Table — Mixed Indoor Units. Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 9 + 12 9 + 12 + 12 18.23 18.22 18.21 18.19 18.18 18.16 18.15 18.14 18.12 18.11 18.09 18.08 17.65 17.21 16.78 16.35 15.88 15.49 15.11 14.72 14.33 14.10 14.02 18.23 18.22 18.21 18.19 18.18 18.16 18.15 18.14 18.12 18.11 18.09 18.08 17.65 17.21 16.78 16.35 15.88 15.49 15.11 14.72 14.33 14.10 14.02 0.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 40: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9 Two (2) Non-Ducted Indoor Units 9 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 17.65 17.63 17.62 17.60 17.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 41: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 12 9 + 18 23.53 23.51 23.49 23.47 23.46 23.44 23.42 23.40 23.38 23.37 23.35 23.33 22.77 22.21 21.65 21.09 20.49 19.99 19.49 18.99 18.49 18.19 18.10 26.47 26.45 26.43 26.41 26.39 26.37 26.35 26.33 26.31 26.29 26.27 26.25 25.61 24.98 24.36 23.73 23.05 22.49 21.93 21.37 20.81 20.47 20.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 42: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 18 Two (2) Non-Ducted Indoor Units 18 + 18 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 29.41 29.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 43: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9+9 9 + 9 + 12 26.47 26.45 26.43 26.41 26.39 26.37 26.35 26.33 26.31 26.29 26.27 26.25 25.61 24.98 24.36 23.73 23.05 22.49 21.93 21.37 20.81 20.47 20.36 29.41 29.39 29.36 29.34 29.32 29.30 29.27 29.25 29.23 29.21 29.18 29.16 28.46 27.76 27.06 26.37 25.61 24.99 24.37 23.74 23.12 22.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 44: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 45: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 9 + 18 9 + 12 +18 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 46: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 47: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 18 + 18 Four (4) Non-Ducted Indoor Units 9+9+9 +9 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 48: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 49: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 12 + 12 + 12 9+9+9 + 18 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 50: LMU369HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 51: LMU369HV Cooling Capacity Table — Ducted Indoor Units Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9 9 + 12 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.57 20.59 20.57 20.55 20.54 20.52 20.51 20.49 20.48 20.46 20.44 20.43 20.41 19.92 19.43 18.94 18.46 17.93 17.49 17.06 16.62 16.18 15.92 15.83 1.24 1.26 1.27 1.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 52: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued) Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 12 Two (2) Ducted Indoor Units 9 + 18 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 23.53 23.51 23.49 23.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 53: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued) Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 18 18 + 18 29.41 29.39 29.36 29.34 29.32 29.30 29.27 29.25 29.23 29.21 29.18 29.16 28.46 27.76 27.06 26.37 25.61 24.99 24.37 23.74 23.12 22.74 22.62 32.35 32.33 32.30 32.28 32.25 32.23 32.20 32.18 32.15 32.13 32.10 32.08 31.31 30.53 29.77 29.00 28.17 27.49 26.80 26.12 25.43 25.02 24.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 54: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 24 + 9 Two (2) Ducted Indoor Units 24 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 32.35 32.33 32.30 32.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 55: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9+9 9 + 9 + 12 26.47 26.45 26.43 26.41 26.39 26.37 26.35 26.33 26.31 26.29 26.27 26.25 25.61 24.98 24.36 23.73 23.05 22.49 21.93 21.37 20.81 20.47 20.36 29.41 29.39 29.36 29.34 29.32 29.30 29.27 29.25 29.23 29.21 29.18 29.16 28.46 27.76 27.06 26.37 25.61 24.99 24.37 23.74 23.12 22.74 22.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 56: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 12 + 12 Three (3) Ducted Indoor Units 12 + 12 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 32.35 32.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 57: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 9 + 18 9 + 12 + 18 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 58: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 12 + 18 Three (3) Ducted Indoor Units 9 + 18 + 18 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 33.33 33.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 59: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 18 + 18 Four (4) Ducted Indoor Units 9+9+9 +9 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 60: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9+9 + 12 Four (4) Ducted Indoor Units 9 + 9 + 12 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 33.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 61: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 12 + 12 + 12 9+9+9 + 18 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 62: LMU369HV Cooling Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 63: LMU369HV Cooling Capacity Table — Mixed Indoor Units Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9 9 + 12 17.65 17.63 17.62 17.60 17.59 17.58 17.56 17.55 17.54 17.52 17.51 17.50 17.08 16.66 16.24 15.82 15.37 14.99 14.62 14.24 13.87 13.65 13.57 20.59 20.57 20.55 20.54 20.52 20.51 20.49 20.48 20.46 20.44 20.43 20.41 19.92 19.43 18.94 18.46 17.93 17.49 17.06 16.62 16.18 15.92 15.83 1.21 1.23 1.25 1.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 64: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 12 Two (2) Mixed Indoor Units 9 + 18 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 23.53 23.51 23.49 23.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 65: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 18 18 + 18 29.41 29.39 29.36 29.34 29.32 29.30 29.27 29.25 29.23 29.21 29.18 29.16 28.46 27.76 27.06 26.37 25.61 24.99 24.37 23.74 23.12 22.74 22.62 32.35 32.33 32.30 32.28 32.25 32.23 32.20 32.18 32.15 32.13 32.10 32.08 31.31 30.53 29.77 29.00 28.17 27.49 26.80 26.12 25.43 25.02 24.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 66: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 24 + 9 Two (2) Mixed Indoor Units 24 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 32.35 32.33 32.30 32.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 67: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9+9 9 + 9 + 12 26.47 26.45 26.43 26.41 26.39 26.37 26.35 26.33 26.31 26.29 26.27 26.25 25.61 24.98 24.36 23.73 23.05 22.49 21.93 21.37 20.81 20.47 20.36 29.41 29.39 29.36 29.34 29.32 29.30 29.27 29.25 29.23 29.21 29.18 29.16 28.46 27.76 27.06 26.37 25.61 24.99 24.37 23.74 23.12 22.74 22.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 68: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 12 + 12 Three (3) Mixed Indoor Units 12 + 12 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 32.35 32.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 69: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 9 + 18 9 + 12 + 18 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 70: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 12 + 18 Three (3) Mixed Indoor Units 9 + 18 + 18 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 33.33 33.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 71: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 12 + 18 + 18 Four (4) Mixed Indoor Units 9+9+9 +9 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 72: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9+9+9 + 12 Four (4) Mixed Indoor Units 9 + 9 + 12 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 33.33 33.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 73: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 12 + 12 + 12 9+9+9 + 18 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.20 25.78 25.63 33.33 33.30 33.28 33.25 33.23 33.20 33.18 33.15 33.13 33.10 33.08 33.05 32.26 31.46 30.67 29.88 29.03 28.32 27.61 26.91 26.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 74: LMU369HV Cooling Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Connected Indoor Combination Capacity Temp. (°F Units Index DB) 9 + 9 + 12 + 18 Four (4) Mixed Indoor Units 12 + 12 + 12 + 12 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 68 / 57 TC PI 33.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 75: LMU187HV Heating Capacity Table — Non-Ducted Indoor Units. Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9 9 + 12 12 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 6.32 8.22 9.49 10.88 11.73 13.14 14.55 15.96 16.77 17.79 18.20 18.25 18.34 18.43 18.48 18.54 6.32 8.22 9.49 10.88 11.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 76: LMU187HV Heating Capacity Table — Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9 Two (2) Ducted Indoor Units 9 + 12 12 + 12 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 77: LMU187HV Heating Capacity Table — Mixed Indoor Units. Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9 9 + 12 12 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 6.30 8.18 9.44 10.83 11.67 13.06 14.47 15.87 16.68 17.69 18.09 18.14 18.23 18.32 18.37 18.43 6.30 8.18 9.44 10.83 11.67 13.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 78: LMU247HV Heating Capacity Table — Non-Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9 Two (2) Non-Ducted Indoor Units 9 + 12 12 + 12 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 79: LMU247HV Heating Capacity Table — Non-Ducted Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9 + 18 12 + 18 Three (3) Non-Ducted Indoor Units 9+9+9 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 11.20 13.87 15.66 17.63 18.82 20.80 22.80 24.79 26.05 27.63 28.26 28.34 28.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 80: LMU247HV Heating Capacity Table — Non-Ducted Indoor Units (continued) / Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 81: LMU247HV Heating Capacity Table — Ducted Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9 + 12 12 + 12 9 + 18 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 10.25 12.45 13.91 15.53 16.51 18.14 19.77 21.41 22.50 23.86 24.41 24.48 24.60 24.72 24.79 24.86 11.78 14.30 15.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 82: LMU247HV Heating Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 83: LMU247HV Heating Capacity Table — Ducted Indoor Units (continued) / Mixed Indoor Units. Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB Three (3) Ducted Indoor Units 9 + 12 + 12 Two (2) Mixed Indoor Units 9 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 11.78 14.30 15.99 17.84 18.97 20.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 84: LMU247HV Heating Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 12 + 12 Two (2) Mixed Indoor Units 9 + 18 12 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 85: LMU247HV Heating Capacity Table — Mixed Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9+9 9 + 9 + 12 9 + 12 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 11.49 14.09 15.82 17.74 18.89 20.82 22.76 24.69 25.95 27.52 28.15 28.24 28.37 28.51 28.59 28.68 11.49 14.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 86: LMU369HV Heating Capacity Table — Non-Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9 Two (2) Non-Ducted Indoor Units 9 + 12 12 + 12 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 87: LMU369HV Heating Capacity Table — Non-Ducted Indoor Units. Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9 + 18 12 + 18 18 + 18 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 14.49 17.37 19.30 21.42 22.71 24.85 27.00 29.15 30.64 32.49 33.24 33.33 33.50 33.66 33.76 33.86 16.10 19.30 21.45 23.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 88: LMU369HV Heating Capacity Table — Non-Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9+9 Three (3) Non-Ducted Indoor Units 9 + 9 + 12 9 + 12 + 12 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 89: LMU369HV Heating Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 12 + 12 + 12 9 + 9 + 18 9 + 12 + 18 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 19.13 22.94 25.49 28.29 29.99 32.82 35.66 38.49 40.46 42.91 43.89 44.02 44.23 44.45 44.58 44.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 90: LMU369HV Heating Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 12 + 12 + 18 Three (3) Non-Ducted Indoor Units 9 + 18 + 18 12 + 18 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 91: LMU369HV Heating Capacity Table — Non-Ducted Indoor Units (continued). Connected Indoor Combination Capacity Units Index 9+9+9 +9 9+9+9 + 12 9 + 9 + 12 + 12 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 92: LMU369HV Heating Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9 + 12 + 12 + 12 Four (4) Non-Ducted Indoor Units 9+9+9 + 18 9 + 9 + 12 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 93: LMU369HV Heating Capacity Table — Non-Ducted Indoor Unit (continued) / Ducted Indoor Units. Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB Four (4) Non-Ducted Indoor Units 12 + 12 + 12 + 12 Two (2) Ducted Indoor Units 9 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 19.13 22.94 25.49 28.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 94: LMU369HV Heating Capacity Table — Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 12 + 12 Two (2) Ducted Indoor Units 9 + 18 12 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 95: LMU369HV Heating Capacity Table — Ducted Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 18 + 18 24 + 9 24 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 19.34 22.18 24.08 26.18 27.45 29.56 31.68 33.80 35.52 37.67 38.54 38.65 38.84 39.03 39.14 39.25 20.41 23.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 96: LMU369HV Heating Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9+9 Three (3) Ducted Indoor Units 9 + 9 + 12 9 + 12 + 12 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 97: LMU369HV Heating Capacity Table — Ducted Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 12 + 12 + 12 9 + 9 + 18 9 + 12 + 18 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 22.02 25.26 27.43 29.81 31.26 33.66 36.08 38.49 40.46 42.91 43.89 44.02 44.23 44.45 44.58 44.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 98: LMU369HV Heating Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 12 + 12 + 18 Three (3) Ducted Indoor Units 9 + 18 + 18 12 + 18 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 99: LMU369HV Heating Capacity Table — Ducted Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9+9 +9 9+9+9 + 12 9 + 9 + 12 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 22.02 25.26 27.43 29.81 31.26 33.66 36.08 38.49 40.46 42.91 43.89 44.02 44.23 44.45 44.58 44.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 100: LMU369HV Heating Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9 + 12 + 12 + 12 Four (4) Ducted Indoor Units 9+9+9 + 18 9 + 9 + 12 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 101: LMU369HV Heating Capacity Table — Ducted Indoor Units (continued) / Mixed Indoor Units. Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB Four (4) Ducted Indoor Units 12 + 12 + 12 + 12 Two (2) Mixed Indoor Units 9 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 22.02 25.26 27.43 29.81 31.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 102: LMU369HV Heating Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 12 + 12 Two (2) Mixed Indoor Units 9 + 18 12 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 103: LMU369HV Heating Capacity Table — Mixed Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 18 + 18 24 + 9 24 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 18.07 21.16 23.23 25.51 26.89 29.19 31.49 33.80 35.52 37.67 38.54 38.65 38.84 39.03 39.14 39.25 19.07 22.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 104: LMU369HV Heating Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9+9 Three (3) Mixed Indoor Units 9 + 9 + 12 9 + 12 + 12 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 105: LMU369HV Heating Capacity Table — Mixed Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 12 + 12 + 12 9 + 9 + 18 9 + 12 + 18 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 20.58 24.10 26.46 29.05 30.62 33.24 35.87 38.49 40.46 42.91 43.89 44.02 44.23 44.45 44.58 44.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 106: LMU369HV Heating Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Connected Indoor Units Outdoor Air Combination Temp. Capacity °F °F Index DB WB 12 + 12 + 18 Three (3) Mixed Indoor Units 9 + 18 + 18 12 + 18 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 107: LMU369HV Heating Capacity Table — Mixed Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9+9+9 +9 9+9+9 + 12 9 + 9 + 12 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 20.58 24.10 26.46 29.05 30.62 33.24 35.87 38.49 40.46 42.91 43.89 44.02 44.23 44.45 44.58 44.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 108: LMU369HV Heating Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB 9 + 12 + 12 + 12 Four (4) Mixed Indoor Units 9+9+9 + 18 9 + 9 + 12 + 18 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 109: LMU369HV Heating Capacity Table — Mixed Indoor Units (continued). Outdoor Air Temp. Connected Indoor Combination Capacity Units °F °F Index DB WB Four (4) Mixed Indoor Units 12 + 12 + 12 + 12 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 TC 20.58 24.10 26.46 29.05 30.62 33.24 35.87 38.49 40.46 42.91 43.89 44.02 44.23 44.45 44.58 44.70 PI 2.53 2.59 2.65 2.74 2.79 2.89 3.00 3.12 3.21 3.32 3.37 3.34 3.31 3.27 3.25 3.
MULTI F MULTI F MAX Multi F Outdoor Unit Electrical and Acoustic Data Electrical Data Nominal Tons Unit Model No. Hertz Voltage Voltage Range (Min. to Max.) MCA MOP Compressor Quantity Compressor Motor RLA 1.5 2 3 LMU187HV LMU247HV LMU369HV 60 208 - 230 187 - 253 11.0 15.4 16.8 15 25 25 1 1 1 8.2 11.6 12.1 Condenser Fan Motor(s) Condenser Condenser Fan Fan Quantity. Motor FLA 1 1 2 0.40 0.40 0.55 x 2 MCA = Minimum Circuit Ampacity.
MULTI F MULTI F MAX Multi F Outdoor Unit Refrigerant Flow Diagram Figure 11: LMU187HV Refrigerant Flow Diagram.
MULTI F MULTI F MAX Multi F Outdoor Unit Refrigerant Flow Diagram Figure 12: LMU247HV Refrigerant Flow Diagram.
MULTI F MULTI F MAX Multi F Outdoor Unit Refrigerant Flow Diagram Figure 13: LMU369HV Refrigerant Flow Diagram.
Multi F Outdoor Unit Wiring Diagram MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual Figure 14: LMU187HV Wiring Diagram. Factory Wiring Field Wiring 120 | MULTI F Outdoor Unit Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MULTI F MULTI F MAX Multi F Outdoor Unit Wiring Diagram Figure 15: LMU247HV Wiring Diagram. Multi F Outdoor Unit Data Factory Wiring Field Wiring Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Multi F Outdoor Unit Wiring Diagram MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual Figure 16: LMU369HV Wiring Diagram. SEPARATOR Factory Wiring Field Wiring 122 | MULTI F Outdoor Unit Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MULTI F MULTI F MAX Multi F Outdoor Unit Operation Range Figure 17: Cooling and Heating Operation Ranges. Cooling 122 118 113 95 86 77 59 50 41 32 23 14 5 -4 41 50 57 59 68 Indoor Temperature (°F WB) 77 82.4 68 64 59 50 41 32 23 Warming up Operation Outdoor Temperature (°F WB) Continuous Operation 68 Heating 77 Continuous Operation 14 5 0 -4 -13 50 59 68 77 81 86 91.
Multi F and Multi F MAX Heat Pump System Engineering Manual MULTI F MULTI F MAX 124 | MULTI F Outdoor Unit Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Multi F MAX Outdoor Unit data “Product Features and Benefits” on page 126 “Mechanical Specifications” on page 127 “General Data” on page 128 “Dimensions” on page 130 “Rated Cooling Combination Tables” on page 131 “Rated Heating Combination Tables” on page 134 “Cooling Capacity Tables ” on page 137 “Heating Capacity Tables” on page 154 “Electrical Data” on page 165 “Acoustic Data” on page 165 “Refrigerant Flow Diagrams” on page 166 “Wiring Diagrams” on page 167 “Operation Range” on page 168
MULTI F MULTI F MAX Multi F MAX Outdoor Unit Features and Benefits Multi F and Multi F MAX Heat Pump System Engineering Manual Multi F MAX inverter-driven heat pump systems can operate up to eight indoor units, providing cooling or heating for an entire home and zoning capabilities. Compact refrigerant pipes work in tandem with wiring to link the outdoor unit with all indoor units through a single or pair of branch distribution (BD) unit(s).
MULTI F MULTI F MAX Multi F MAX Systems Mechanical Specifications Multi F MAX Heat Pump Condensing Units Figure 19: Multi F MAX LMU540HV Outdoor Unit. General The heat pump outdoor units are capable of operating in cooling mode from 14°F to 118°F ambient dry bulb. The heat pump outdoor units are capable of operating in heating mode from 0°F to 64°F ambient wet bulb without additional low ambient controls. includes Teflon™ coated bearings.
MULTI F MULTI F MAX Multi F MAX Outdoor Unit Multi F and Multi F MAX Heat Pump System Engineering Manual General Data Table 115: Multi F MAX Outdoor Unit General Data. Model Number 1 Rated Cooling Capacity (Btu/h) Rated Heating Capacity (Btu/h)1 Operating Range Cooling (°F DB) Heating (°F WB) Compressor Inverter Quantity Oil/Type Fan (Side Discharge) Type Motor Output (W) x Qty. Motor/Drive Maximum Air Volume (CFM) Unit Data Refrigerant Type Refrigerant Control/Location Min.
MULTI F MULTI F MAX Multi F MAX Outdoor Unit General Data Table 116: LMU540HV Efficiency Ratings.1,2 System Combined With LMU540HV Non-ducted Indoor Units Ducted Indoor Units Mixed Non-ducted and Ducted Indoor Units Rated Cooling EER Rated Heating COP Low Heating COP Energy Capacity (Btu/h) (95°F) SEER Capacity (Btu/h) (47°F) HSPF Capacity (Btu/h) (17°F) Star 52,500 10.3 18.4 58,000 3.1 8.7 36,600 2.6 Yes 51,000 10.0 15.8 58,000 3.0 8.0 38,500 2.6 No 51,750 10.15 17.1 58,000 3.
MULTI F MULTI F MAX Multi F MAX Outdoor Unit Dimensions 6-5/8 13 14-3/16 15-3/4 4-holes for anchor bolts No. 6-1/2 6-1/2 24-13/32 Part Name 1 Liquid pipe connection 2 Gas pipe connection 3 Air discharge grille 4 Power & transmission connection 4 14-1/20 37-13/32 130 | MULTI F MAX Outdoor Unit Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved.
MULTI F MULTI F MAX Performance Data Rated Cooling Combination Tables The individual indoor unit capacity can be calculated based on the outdoor unit Rated capacity as follows.
MULTI F MULTI F MAX Performance Data Rated Cooling Combination Tables Table 118: LMU540HV with Ducted Indoor Units — Rated Cooling Combination Table. Multi F and Multi F MAX Heat Pump System Engineering Manual Total Indoor Unit Capacity (kBtu/h) Minimum Btu/h kW Cooling Capacity Rated Btu/h kW 24 13,600 3.99 22,667 6.64 25 14,167 4.15 23,611 6.92 26 14,733 4.32 24,556 7.20 27 15,300 4.48 25,500 7.47 28 15,867 4.65 26,444 7.75 29 16,433 4.82 27,389 8.03 30 17,000 4.98 28,333 8.30 31 17,567 5.
MULTI F MULTI F MAX Performance Data Rated Cooling Combination Tables Table 119: LMU540HV with Mixed Indoor Units — Rated Cooling Combination Table.
MULTI F MULTI F MAX Performance Data Rated Heating Combination Tables Table 120: LMU540HV with Non-Ducted Indoor Units — Rated Heating Combination Table.
MULTI F MULTI F MAX Performance Data Rated Heating Combination Tables Table 121: LMU540HV with Ducted Indoor Units — Rated Heating Combination Table.
MULTI F MULTI F MAX Performance Data Rated Heating Combination Tables Table 122: LMU540HV with Mixed Indoor Units — Rated Heating Combination Table.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 123: LMU540HV Cooling Capacity Table — Non-Ducted Indoor Units. Combination Capacity Index (kBtu/h[%]) Non-Ducted Indoor Units 73 (135%) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 54.55 54.51 54.47 54.43 54.39 54.35 54.30 54.26 54.22 54.18 54.14 54.10 52.79 51.49 50.20 48.91 47.51 46.35 45.20 44.04 42.88 42.19 41.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 124: LMU540HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Combination Capacity Index (kBtu/h[%]) Non-Ducted Indoor Units 65 (120%) Non-Ducted Indoor Units 59 (110%) Outdoor Air Temp. (°F DB) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 53.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 125: LMU540HV Cooling Capacity Table — Non-Ducted Indoor Units. Combination Capacity Index (kBtu/h[%]) Non-Ducted Indoor Units 54 (100%) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 51.47 51.43 51.39 51.35 51.31 51.27 51.23 51.19 51.15 51.11 51.07 51.03 49.81 48.58 47.36 46.14 44.82 43.73 42.64 41.55 40.46 39.80 39.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 126: LMU540HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Combination Capacity Index (kBtu/h[%]) Non-Ducted Indoor Units 43 (80%) Non-Ducted Indoor Units 38 (70%) Outdoor Air Temp. (°F DB) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 40.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 127: LMU540HV Cooling Capacity Table — Non-Ducted Indoor Units (continued). Combination Capacity Index (kBtu/h[%]) Non-Ducted Indoor Units 32 (60%) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 30.50 30.47 30.45 30.43 30.40 30.38 30.36 30.33 30.31 30.29 30.26 30.24 29.51 28.79 28.06 27.34 26.56 25.91 25.27 24.62 23.97 23.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 128: LMU540HV Cooling Capacity Table — Non-Ducted (continued) / Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Combination Capacity Index (kBtu/h[%]) Non-Ducted Indoor Units 24 (40%) Ducted Indoor Units 73 (135%) Outdoor Air Temp.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 129: LMU540HV Cooling Capacity Table — Ducted Indoor Units (continued). Combination Capacity Index (kBtu/h[%]) Ducted Indoor Units 70 (130%) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 52.52 52.48 52.44 52.40 52.36 52.32 52.28 52.24 52.20 52.16 52.12 52.08 50.83 49.58 48.33 47.09 45.74 44.63 43.52 42.40 41.29 40.62 40.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 130: LMU540HV Cooling Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Combination Capacity Index (kBtu/h[%]) Ducted Indoor Units 59 (110%) Ducted Indoor Units 54 (100%) Outdoor Air Temp. (°F DB) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 50.79 50.75 50.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 131: LMU540HV Cooling Capacity Table — Ducted Indoor Units (continued). Combination Capacity Index (kBtu/h[%]) Ducted Indoor Units 49 (90%) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 45.37 45.33 45.30 45.26 45.23 45.20 45.16 45.13 45.09 45.06 45.02 44.99 43.90 42.82 41.75 40.68 39.51 38.55 37.59 36.63 35.66 35.09 34.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 132: LMU540HV Cooling Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Combination Capacity Index (kBtu/h[%]) Ducted Indoor Units 38 (70%) Ducted Indoor Units 32 (60%) Outdoor Air Temp. (°F DB) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 35.18 35.16 35.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 133: LMU540HV Cooling Capacity Table — Ducted Indoor Units (continued). Combination Capacity Index (kBtu/h[%]) Ducted Indoor Units 27 (50%) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 25.00 24.98 24.96 24.94 24.92 24.90 24.88 24.86 24.85 24.83 24.81 24.79 24.19 23.59 23.00 22.41 21.77 21.24 20.71 20.18 19.65 19.33 19.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 134: LMU540HV Cooling Capacity Table — Mixed Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Combination Capacity Index (kBtu/h[%]) Mixed Indoor Units 73 (135%) Mixed Indoor Units 70 (130%) Outdoor Air Temp. (°F DB) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 53.78 53.74 53.70 53.66 53.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 135: LMU540HV Cooling Capacity Table — Mixed Indoor Units (continued). Combination Capacity Index (kBtu/h[%]) Mixed Indoor Units 65 (120%) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 52.49 52.45 52.41 52.37 52.33 52.29 52.25 52.21 52.17 52.13 52.09 52.05 50.80 49.55 48.31 47.07 45.72 44.61 43.49 42.38 41.27 40.60 40.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 136: LMU540HV Cooling Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Combination Capacity Index (kBtu/h[%]) Mixed Indoor Units 54 (100%) Mixed Indoor Units 49 (90%) Outdoor Air Temp. (°F DB) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 50.73 50.69 50.65 50.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 137: LMU540HV Cooling Capacity Table — Mixed Indoor Units (continued). Combination Capacity Index (kBtu/h[%]) Mixed Indoor Units 43 (80%) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 40.40 40.37 40.34 40.31 40.27 40.24 40.21 40.18 40.15 40.12 40.09 40.06 39.10 38.13 37.18 36.22 35.18 34.33 33.47 32.61 31.76 31.24 31.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 138: LMU540HV Cooling Capacity Table — Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Combination Capacity Index (kBtu/h[%]) Mixed Indoor Units 32 (60%) Mixed Indoor Units 27 (50%) Outdoor Air Temp. (°F DB) 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 14 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 TC 68 / 57 30.07 30.04 30.02 30.
MULTI F MULTI F MAX Performance Data Cooling Capacity Tables Table 139: LMU540HV Cooling Capacity Table — Mixed Indoor Units (continued). Combination Capacity Index (kBtu/h[%]) Mixed Indoor Units 24 (40%) Outdoor Air Temp. (°F DB) 22.55 22.53 22.51 22.50 22.48 22.46 22.44 22.43 22.41 22.39 22.37 22.36 21.82 21.28 20.75 20.22 19.64 19.16 18.68 18.20 17.72 17.44 17.34 PI 0.97 0.98 1.00 1.01 1.03 1.04 1.05 1.07 1.08 1.10 1.11 1.12 1.18 1.24 1.31 1.37 1.43 1.49 1.55 1.61 1.67 1.71 1.75 TC 73 / 61 23.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 140: LMU540HV Heating Capacity Table — Non-Ducted Indoor Units. Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB TC 61 PI TC 64 PI 0 -0.4 28.30 3.71 26.61 3.85 5 4.5 34.08 3.88 32.48 4.02 10 9 37.95 4.03 36.42 4.17 17 15 42.21 4.23 40.74 4.37 20 19 44.80 4.37 43.37 4.50 25 23 49.10 4.61 47.64 4.74 30 28 53.41 4.86 51.76 5.02 Non-Ducted 35 32 57.72 5.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 141: LMU540HV Heating Capacity Table — Non-Ducted Indoor Units (continued). Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB Non-Ducted Indoor Units 59 (110%) Non-Ducted Indoor Units 49 (90%) -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 27.12 32.66 36.37 40.46 42.93 47.05 51.19 55.32 58.14 61.66 63.07 63.26 63.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 142: LMU540HV Heating Capacity Table — Non-Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Combination Temp.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 143: LMU540HV Heating Capacity Table — Non-Ducted (continued) / Ducted Indoor Units. Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB Non-Ducted Indoor Units 27 (50%) Ducted Indoor Units 73 (135%) -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 -0.4 4.5 9 15 19 23 28 32 36 41 43 46 51 56 59 64 13.35 16.08 17.90 19.91 21.13 23.16 25.19 27.23 28.61 30.35 31.04 31.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 144: LMU540HV Heating Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB Ducted Indoor Units 70 (130%) Ducted Indoor Units 65 (120%) Ducted Indoor Units 59 (110%) 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 145: LMU540HV Heating Capacity Table — Ducted Indoor Units (continued). Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB TC 61 PI TC 64 PI PI TC 72 PI TC 75 PI 28.81 3.75 28.16 3.79 27.64 3.81 26.48 3.95 33.16 3.92 32.46 3.96 31.90 3.99 30.61 4.13 36.07 4.06 35.33 4.12 34.75 4.16 33.38 4.29 39.27 4.26 38.50 4.33 37.88 4.39 36.43 4.51 41.21 4.39 40.42 4.47 39.78 4.54 38.27 4.66 44.46 4.61 43.62 4.71 42.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 146: LMU540HV Heating Capacity Table — Ducted Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB TC 61 PI TC 64 PI 0 -0.4 21.55 2.45 20.31 2.55 5 4.5 24.85 2.55 23.70 2.64 10 9 27.05 2.64 25.96 2.73 17 15 29.48 2.76 28.46 2.84 20 19 30.95 2.83 29.97 2.92 25 23 33.41 2.97 32.42 3.06 30 28 35.87 3.13 34.76 3.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 147: LMU540HV Heating Capacity Table — Ducted (continued) / Mixed Indoor Units. Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB TC 61 PI TC 64 PI PI TC 72 PI TC 75 PI 12.81 1.55 12.52 1.57 12.29 1.58 11.77 1.63 14.74 1.62 14.43 1.64 14.18 1.65 13.61 1.71 16.03 1.68 15.71 1.70 15.44 1.72 14.84 1.78 17.45 1.76 17.11 1.79 16.84 1.82 16.19 1.87 18.32 1.82 17.97 1.85 17.68 1.88 17.01 1.93 19.76 1.91 19.39 1.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 148: LMU540HV Heating Capacity Table —Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB Mixed Indoor Units 65 (120%) Mixed Indoor Units 59 (110%) Mixed Indoor Units 54 (100%) 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 0 5 10 17 20 25 30 35 40 45 47 50 55 60 63 68 -0.4 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 149: LMU540HV Heating Capacity Table —Mixed Indoor Units (continued). Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB TC 61 PI TC 64 PI PI TC 72 PI TC 75 PI 24.47 3.29 23.92 3.31 23.47 3.33 22.48 3.46 28.75 3.43 28.14 3.47 27.65 3.50 26.54 3.62 31.61 3.57 30.96 3.62 30.45 3.66 29.25 3.77 34.75 3.75 34.07 3.81 33.53 3.86 32.24 3.98 36.66 3.87 35.96 3.94 35.39 4.00 34.05 4.11 39.85 4.08 39.10 4.16 38.50 4.
MULTI F MULTI F MAX Performance Data Heating Capacity Tables Table 150: LMU540HV Heating Capacity Table —Mixed Indoor Units (continued). Multi F and Multi F MAX Heat Pump System Engineering Manual Outdoor Air Combination Temp. Capacity Index (kBtu/h[%]) °F DB °F WB TC 61 PI TC 64 PI 0 -0.4 16.98 1.95 15.99 2.03 5 4.5 19.99 2.03 19.06 2.11 10 9 22.00 2.11 21.11 2.18 17 15 24.21 2.21 23.37 2.28 20 19 25.55 2.27 24.74 2.34 25 23 27.79 2.39 26.96 2.46 30 28 30.03 2.52 29.10 2.
MULTI F MULTI F MAX Multi F MAX Outdoor Unit Electrical and Acoustic Data Electrical Data Table 151: LMU540HV Electrical Data. Nominal Tons Unit Model No. Hertz Voltage Voltage Range (Min. to Max.) MCA 4.5 LMU540HV 60 208 - 230 187 - 253 26.4 MOP Compressor Quantity Compressor Motor RLA 40 1 18.5 Condenser Fan Motor(s) Condenser Fan Condenser Fan Quantity x kW Motor FLA 2 x 0.12 1.25 x 2 MCA = Minimum Circuit Ampacity.
MULTI F MULTI F MAX Multi F MAX Outdoor Unit Refrigerant Flow Diagram Figure 23: LMU540HV Refrigerant Flow Diagram.
MULTI F MULTI F MAX Multi F Outdoor Unit Wiring Diagram Figure 24: LMU540HV Wiring Diagram. Multi F MAX Outdoor Unit Data Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MULTI F MULTI F MAX Multi F MAX Outdoor Unit Operation Ranges Figure 25: LMU540HV Cooling and Heating Operation Ranges. Cooling 122 118 104 95 Outdoor Temperature (°F DB) 86 77 59 50 41 32 23 14 5 -4 41 50 57 59 68 73 77 Indoor Temperature (°F WB) 168 | MULTI F MAX Outdoor Unit 82.
Multi F MAX BD Unit data “Features and Benefits” on page 170 “Mechanical Specifications” on page 171 “General Data” on page 172 “Dimensions” on page 173 “Refrigerant Flow Diagram” on page 174 “Wiring Diagram” on page 175 “Y-Branch Accessory” on page 176 “Branch Distribution Unit Orientation” on page 177
Multi F MAX BD Unit Features and Benefits MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual The Branch Distribution (BD) unit is a required accessory of Multi F MAX inverter-driven heat pump systems. Choose from two (2) port, three (3) port, or four (4) port BD units. Two (2) refrigerant pipes-one (1) liquid line and one (1) vapor line-run from the outdoor unit to the BD unit that is installed inside of a building.
MULTI F MULTI F MAX Multi F MAX BD Unit Mechanical Specifications Branch Distribution Unit Figure 27: PMBD3620 Two-Port Branch Distribution Unit. General Branch distribution units are designed for use with LG Multi F MAX (LMU540HV) outdoor units, and are internally piped, wired, assembled and run-tested at the factory.
MULTI F MULTI F MAX Multi F MAX BD Unit General Data Table 154: Multi F MAX BD Unit General Data. Model Number No. of Connectable Indoor Units1 PMBD3620 PMBD3630 PMBD3640 24,000 24,000 24,000 48,000 0 ~ 122 72,000 0 ~ 122 73,000 0 ~ 122 1-4 24,000 for A,B,C Ports; 36,000 for D Port 73,000 0 ~ 122 R410A R410A R410A R410A 208-230, 1, 60 16 0.08 17-3/32 x 6-13/32 x 10-23/32 13 15 208-230, 1, 60 24 0.12 17-3/32 x 6-13/32 x 10-23/32 14.3 17 208-230, 1, 60 32 0.
MULTI F MULTI F MAX Multi F MAX BD Unit Dimensions 1-31/32 C D 1-31/32 1-31/32 Main Pipe 1-3/16 1-31/32 4-3/8 2-3/8 Cover Control (Controller service) Branch Distribution (BD) Unit Data Liquid Pipe: Ø1/4 Gas Pipe: Ø3/8 *PMBD3641: D connections - Ø3/8, Ø5/8 11 -7/8 Branch Pipe Suspension bolt pitch.
MULTI F MULTI F MAX Multi F MAX BD Unit Refrigerant Flow Diagram Multi F and Multi F MAX Heat Pump System Engineering Manual Figure 31: PMBD3620, PMBD3630, PMBD3640, PMBD3641 Refrigerant Flow Diagram.
MULTI F MULTI F MAX Multi F MAX BD Unit Wiring Diagram Figure 32: PMBD3620, PMBD3630, PMBD3640, PMBD3641 Wiring Diagram. Model Dependant Model Dependant Branch Distribution (BD) Unit Data Model Dependant Troubleshooting Model Dependant PMBD3620 BD Unit supplied with "A, B". PMBD3630 BD Unit supplied with "A, B, C". PMBD3640 and PMBD3641 BD Units supplied with "A, B, C, D". Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.
MULTI F MULTI F MAX Multi F MAX BD Unit Multi F MAX Y-Branch Accessory Y-Branch accessory PMBL5620 is required when installing two branch distribution units in parallel on one Multi F MAX system. Table 155: Multi F MAX Y-Branch Specifications. Multi F and Multi F MAX Heat Pump System Engineering Manual Model PMBL5620 Port Identifier (inch) Y-Branch Type 1 2 3 Liquid Ø3/8 Ø3/8 Ø3/8 Vapor Ø3/4 Ø3/4 Ø3/4 Dimensions (inch) Y-Branch Type X Y Liquid 13.80 3.24 Vapor 12.48 3.
MULTI F MULTI F MAX Multi F MAX BD Unit Branch Distribution Unit Orientation Multi F MAX Branch Distribution (BD) Units can be installed in a multitude of options to fit various building configurations and job or application requirements. Multi F MAX BD Units include electronic expansion valves that properly seat only if the BD Unit is installed in an acceptable orientation.
Multi F and Multi F MAX Heat Pump System Engineering Manual MULTI F MULTI F MAX 178 | BD Unit Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Application Guidelines “Equipment Selection Procedure” on page 180 “Building Ventilation Design Guide” on page 186 “Placement Considerations” on page 190
Equipment Selection Procedure MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual To choose the multi-zone system that is the most appropriate for the space, as with traditional air-conditioning systems, follow similar protocols outlined in Manual J from the Air Conditioning Contractors of America (ACCA; see www.acca.org). 1. Obtain the design conditions, and calculate the maximum cool and heat loads for the structure. 2.
MULTI F MULTI F MAX Equipment Selection Procedure Table 156: Allowable Indoor Unit to Outdoor Unit Connections.
Equipment Selection Procedure MULTI F MULTI F MAX Determine the Corrected Capacity Multi F and Multi F MAX Heat Pump System Engineering Manual The corrected cooling / heating capacity is different from the nominal (rated) cooling / heating capacity.
MULTI F MULTI F MAX Equipment Selection Procedure Using the System Combination Tables Multi F system combination tables illustrate how each indoor unit receives a percentage of total outdoor unit rated capacity.
MULTI F MULTI F MAX Equipment Selection Procedure Main Piping Length (feet) 16.4 32.8 49.2 65.6 82.0 98.4 114.8 131.2 147.6 164.0 180.4 Cooling Capacity (%) 100.0 98.8 97.3 95.8 94.3 92.8 91.3 89.8 88.3 86.8 85.3 Heating Capacity (%) 100.0 99.6 99.2 98.7 98.3 97.8 97.4 96.9 96.5 96.0 95.6 Figure 38: Multi F MAX Outdoor Unit to Branch Distribution Unit Refrigerant Line Length Derate Chart. 100.0 95.
MULTI F MULTI F MAX Equipment Selection Procedure Altitude Correction Factor The impact of air density must be considered on systems installed at a significant altitude above sea level, therefore, locally accepted altitude correction factors must be applied. Defrost Correction Factor for Heating Operation The outdoor unit heating capacity may need to be adjusted for frost accumulation on air-cooled systems.
Building Ventilation Design Guide MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual ASHRAE Standards 62.1 and 62.2 (depending on if the building is residential or commercial), and local codes specify the minimum volume of airflow that must be provided to an occupied space. Outdoor air is required to minimize adverse health effects, and it provides acceptable indoor air quality for building occupants.
MULTI F MULTI F MAX Building Ventilation Design Guide Method 2: Unconditioned Outdoor Air (Non-Ducted, Fan Assisted Ventilation) When approved by local codes, the fan assisted ventilation method uses exhaust fans to remove air from the building, and outdoor air is drawn into occupied spaces through a wall louver or gravity roof intake hood.
Building Ventilation Design Guide MULTI F MULTI F MAX Method 3: Unconditioned Outdoor Air Ducted to Indoor Units Multi F and Multi F MAX Heat Pump System Engineering Manual Untreated outdoor air is channeled through a duct system that is piped to the return air duct on Multi F ducted indoor units or to the frame of Multi F four-way cassettes. Outside air may flow backward through the return air-filter grille when the indoor unit fan speed slows or stops in response to changes in the space load.
MULTI F MULTI F MAX Building Ventilation Design Guide Method 4: Coupled Dedicated Outdoor Air (CDOA) A separate, dedicated outdoor air system delivers air directly to a Multi F indoor unit or to the return air duct system. After mixing with the return air stream, ventilation air passes through the indoor unit and into the conditioned space. The pretreatment system is capable of filtering, conditioning, and dehumidifying outdoor air to room neutral conditions.
Building Ventilation Design Guide MULTI F MULTI F MAX Method 5: Decoupled Dedicated Outdoor Air System (DDOAS) LG recommends using the DDOAS method in all installations. Advantages • Does not add additional heating or cooling loads to indoor units. • May be used with the full lineup of Multi F indoor units. • Failure of outdoor unit does not impact operation of indoor unit, the resulting untreated air will be readily noticed by the occupants.
MULTI F MULTI F MAX Placement Considerations Selecting the Best Location for the Indoor Units Select a location for installing the indoor units that will meet the following conditions: • Within allowable parameters for proper connection to the outdoor unit (or Branch Distribution unit, if a Multi F MAX system). • No obstacles to air circulation around the unit; keep proper distances from ceilings, doorways, floor, walls, etc. • So that condensation drainage can be conveniently routed away.
MULTI F MULTI F MAX Placement Considerations Rooftop Installations Multi F and Multi F MAX Heat Pump System Engineering Manual If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location. Consult local codes regarding rooftop mounting. Oceanside Installation Precautions • Avoid installing the outdoor unit where it would be directly exposed to ocean winds.
MULTI F MULTI F MAX Placement Considerations Outdoor Unit Platform Requirements Figure 44: Outdoor Unit Foundation Requirements. Unit: Inch Minimum 3-15/16 Minimum 3-15/16 21-1/2 Minimum 14-9/16 21-1/2 LMU187HV and LMU247HV Outdoor Units Minimum 14-9/16 LMU369HV Outdoor Units Table 162: Outdoor Unit Foundation Specifications.
MULTI F MULTI F MAX Placement Considerations Multi F and Multi F MAX Heat Pump System Engineering Manual Tie-Downs and Lightening Protection Figure 47: Lightening Protection Diagram. Tie-Downs • The strength of the roof must be checked before installing the outdoor units. • If the installation site is prone to high winds or earthquakes, when installing on the wall or roof, securely anchor the mounting base using a field-provided tie-down configuration approved by a local professional engineer.
MULTI F MULTI F MAX Placement Considerations Clearance Requirements when Different Obstacles are Present (Unit: Inch). Obstacle on the suction side only. m u inim M 11 /16 -13 " Obstacles on the suction side and on both left and right sides. Min imu m1 1-1 3/16 " imu m2 imu 3-1 Min 9/32 6" 13/1 1m1 Application Guidelines Min " Obstacles above and on the air intake side.
MULTI F MULTI F MAX Placement Considerations Clearance Requirements when Different Obstacles are Present, continued. (Unit: Inch) Wherethere there are are obstacles obstacles above, Where above,and andononboth both suctionand and discharge discharge sides suction sides(discharge (dischargeside sideobstacle obstacle higher than than the the outdoor isishigher outdoor unit). unit). 6" 11/1 16" 19- -11/ umm 19 m i ax mu Table 164: Ratio among H, A, and L.
Refrigerant Piping Design & Layout Best Practices “Design Guideline Summary” on page 198 “Creating a Balanced / Quality Piping System” on page 200 “Manual Layout Procedure” on page 200 “LG Engineered Multi F MAX Y-Branch Kits” on page 201 “Refrigerant Charge” on page 202 “Selecting Field-Supplied Copper Tubing” on page 204 “Refrigerant Piping System Layout” on page 206 “Piping Insulation” on page 214 “Condensate Drain Piping” on page 215 “Cut Sheet” on page 217
MULTI F MULTI F MAX Refrigerant Piping Design Design Guideline Summary The following are examples of manual pipe size calculations. Designers are highly encouraged to use LATS for Multi F systems. Device Connection Limitations • The minimum number of connected and operating indoor units to Multi F / Multi F MAX systems is two, taking into consideration of the minimum combination ratio.
MULTI F MULTI F MAX Refrigerant Piping Design Design Guideline Summary The following are examples of manual pipe size calculations. Designers are highly encouraged to use LATS for Multi F systems. Multi F MAX System with One Branch Distribution Unit Example: LMU540HV outdoor unit with four (4) indoor units, and one (1) branch distribution unit connected. IDU BDU A B h1 ≤ 98.4 feet h2 ≤ 49.2 feet IDU B IDU B h3 ≤ 32.8 feet Refrigerant Piping Design and Best Practices ODU: Outdoor Unit.
Refrigerant Piping Design Creating a Balanced System / Manual Layout Procedure MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual Creating a Balanced / Quality Piping System Unlike designing duct-work or chilled and hot water pipe systems where balancing dampers, ball valves, orifices, circuit setters, or other flow control devices can be installed to modify or balance the flow of cooling medium, these cannot be used in a Multi F system.
MULTI F MULTI F MAX Refrigerant Piping Design LG Engineered Multi F MAX Y-Branch Kit Multi F MAX Y-Branch Kit PMBL5620 The LG supplied Y-Branch Kit PMBL5620 MUST be used when two branch distribution units are connected on one Multi F MAX system. Field-supplied fittings are not permitted. Each Y-Branch kit comes with two (2) Y-branches (one for the liquid line and one for the vapor line) and insulation covers. Y-branches must be properly installed following instructions in the applicable LG manual.
MULTI F MULTI F MAX Refrigerant Piping Design Refrigerant Charge Multi F and Multi F MAX Heat Pump System Engineering Manual LG Multi F and Multi F MAX outdoor units ship from the factory with a charge of R410A refrigerant. A trim charge may need to be added to take into account additional piping length. To determine the additional refrigerant that is needed, apply the formulas below, and record the results.
MULTI F MULTI F MAX Refrigerant Piping Design Refrigerant Charge Multi F MAX Systems Additional charge (lbs.) = (Total Main Piping Length [A] - Chargeless Pipe Length of Main Pipe [A]) x a + (Installed Length of Branch [B1] – Chargeless Pipe Length [B]) x b + (Installed Length of Branch [B2] – Chargeless Pipe Length [B]) x b + (Installed Length of Branch [B3] – Chargeless Pipe Length [B]) x b ... - CF (Correction Factor) x 3.53 Table 172: Multi F MAX Outdoor Unit Piping Specifications.
MULTI F MULTI F MAX Refrigerant Piping Design Multi F and Multi F MAX Heat Pump System Engineering Manual Selecting Field-Supplied Copper Tubing Copper is the only approved refrigerant pipe material for use with LG Multi F air conditioning products, and LG recommends hard-drawn rigid type “K” or “L”, or annealed-tempered, copper pipe. • Drawn temper (rigid) ACR copper tubing is available in sizes 3/8 through 2-1/8 inches (ASTM B 280, clean, dry, and capped).
MULTI F MULTI F MAX Installation & Layout Best Practices Selecting Field-Supplied Copper Tubing Table 175: Linear Thermal Expansion of Copper Tubing in Inches. 1 40° 45° 50° 55° 60° 65° 70° Fluid Temperature °F 75° 80° 85° 90° 95° 100° 105° 110° 115° 120° 125° 130° 0.04 0.08 0.12 0.16 0.20 0.24 0.28 0.32 0.36 0.40 0.48 0.56 0.64 0.72 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90 0.06 0.12 0.18 0.24 0.30 0.36 0.42 0.48 0.54 0.60 0.72 0.84 0.96 1.08 0.06 0.13 0.20 0.
Installation & Layout Best Practices Refrigerant Piping System Layout MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual Field-Provided Isolation Ball Valves LG recommends installing field-supplied ball valves with Schrader ports at each indoor unit. Full-port isolation ball valves with Schrader ports (positioned between valve and indoor unit) rated for use with R410A refrigerant should be used on both the liquid and vapor lines.
MULTI F MULTI F MAX Installation & Layout Best Practices Refrigerant Piping System Layout Inserts and Pipe Supports Figure 57: Installing an Insert Into a Concrete Beam. Inserts An insert can be installed into a floor or beam before the concrete sets so that fittings such as ducts, pipes, or suspension bolts can be added at a later time. Decide where the inserts should be placed before support installation.
Installation & Layout Best Practices Refrigerant Piping System Layout MULTI F MULTI F MAX Examples of Supports Figure 62: U-Bolt Support with Insulation. Figure 63: O-Ring Support with Insulation. Bolt Insulation Multi F and Multi F MAX Heat Pump System Engineering Manual Figure 64: Saddle-Type Support. Support at Intervals Between 5 and 6-3/4 Feet Bolt 1.5t Plate PVC PVC Do not compress the insulation with the saddle-type support.
MULTI F MULTI F MAX Installation & Layout Best Practices Refrigerant Piping System Layout Pipe Sleeves at Penetrations LG requires that all pipe penetrations through walls, floors, and pipes buried underground be routed through a properly insulated sleeve that is sufficiently sized to provide free movement of the pipe and does not compress the insulation. Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration.
Installation & Layout Best Practices Refrigerant Piping System Layout MULTI F MULTI F MAX Multi F Outdoor Unit to Indoor Unit Piping Connections Multi F and Multi F MAX Heat Pump System Engineering Manual Avoid Pipe Damage • When routing field-provided piping, avoid damaging the outdoor unit from excessive vibration. • Correctly route the piping so it does not make contact with mounting bolts. Allow room for field installation.
MULTI F MULTI F MAX Installation & Layout Best Practices Refrigerant Piping System Layout Multi F MAX Outdoor Unit System Piping Connections Avoid Pipe Damage • When routing field-provided piping, avoid damaging the outdoor unit from excessive vibration. • Correctly route the piping so it does not make contact with mounting bolts. Allow room for field installation. • Properly insulate the liquid and gas lines separately up to the point of connection at the unit frame.
Installation & Layout Best Practices Refrigerant Piping System Layout MULTI F MULTI F MAX Multi F MAX Outdoor Unit System Piping Connections, continued. Multi F and Multi F MAX Heat Pump System Engineering Manual 1. Align the center of the piping sections and tighten the flare nut by hand. 2. Tighten the flare nut with a torque wrench, using the arrows on the wrench as a guide, until a click is heard. 3. Wrap insulation around the connection.
MULTI F MULTI F MAX Installation & Layout Best Practices Refrigerant Piping System Layout Brazing Practices Keep the piping system free of contaminants and debris such copper burrs, slag, or carbon dust during installation. 1. All joints are brazed in the field. Multi F refrigeration system components contain very small capillary tubes, small orifices, electronic expansion valves, oil separators, and heat exchangers that can easily become blocked.
Installation & Layout Best Practices Piping Insulation MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual Refrigerant Piping System Insulation All refrigerant piping including Y-branch connections, field-provided isolation ball valves, service valves, and elbows shall be completely insulated using closed cell pipe insulation.
MULTI F MULTI F MAX Installation & Layout Best Practices Condensate Drain Piping Condensate Drain Piping Outdoor Units Outdoor unit requires condensate drain piping. Condensate drain pipe is constructed with materials approved by local code. See pages 191 to 196 for information in reference to outdoor unit placement and condensate drainage.
Installation & Layout Best Practices Condensate Drain Piping MULTI F MULTI F MAX Multi F and Multi F MAX Heat Pump System Engineering Manual Common Indoor Unit Drainage System It is usual work practice to connect individual indoor unit drain pipes to one common indoor unit drainage system. The diameter of the common vertical drain pipe should be as large as necessary. (For systems with <80,000 Btu/h total capacity of all connected indoor units, the standard size for the common vertical drain pipe is 0.
MULTI F MULTI F MAX Cut Sheet Y-Branch Kit • LG Y-Branch Kit PMBL5620 is required when installing two branch distribution units in parallel on one LG Multi F MAX system. • The kit must be properly installed following instructions in the applicable LG manual. Field-supplied branch fittings are not permitted. • Kit components must be kept free of debris and be dry before installation. • All Y-Branch Kits include a clam shell, peel-and-stick insulation jacket. Table 188: Fitting Properties.
Multi F and Multi F MAX Heat Pump System Engineering Manual MULTI F MULTI F MAX 218 | Design & Practices Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Wiring Connections “General Information” on page 220 “Power Wiring (208-230V) and Communications Cable Details” on page 223 “Indoor Unit Group Control” on page 228
MULTI F MULTI F MAX Wiring Connections Multi F and Multi F MAX Heat Pump System Engineering Manual General Information • Only qualified technicians—in accordance with federal, state, and local codes, and manufacturer product diagrams and requirements— should install the power wiring and communication cables. • Use only copper wiring that is stranded, shielded with the wires separately insulated. • Do not use a multi-conductor cable with more than five (5) wires in one (1) core.
MULTI F MULTI F MAX Wiring Connections General Information Connecting the Power Wiring / Communications Cable Best practice dictates using ring or spade terminals to terminate power wiring at the power terminal block. If ring terminals or spade clips are not available, then: • Do not terminate different gauge wires to the power terminal block. (Slack in the wiring may generate heat.) • When terminating wires of the same thickness, follow the instructions demonstrated in the figures below.
MULTI F MULTI F MAX Wiring Connections General Information Multi F and Multi F MAX Heat Pump System Engineering Manual Figure 96: Multi F System General Power / Communications System Schematic. Indoor Units Power Supply Circuit Breaker Ground Wiring Outdoor Unit Figure 97: Multi F MAX System General Power / Communications System Schematic. Indoor Unit BD Unit Power Supply Circuit Breaker BD Unit Ground Wiring Outdoor Unit • Secure the separate wires in the control box panel using zip ties.
MULTI F MULTI F MAX Wiring Connections Power Wiring (208-230V) and Communications Cable Details • Find the outdoor unit terminal block by unscrewing the control access panel. Figure 98: Example of Power Wiring and Communications Cable Terminations. Control Access Panel • Side panel of the outdoor unit has knockout holes for the conduits. After install is complete, seal up any gaps between the panel and the conduits.
MULTI F MULTI F MAX Wiring Connections Power Wiring (208-230V) and Communications Cable Details Figure 99: Multi F LMU187HV System Power Wiring and Communications Cable.
MULTI F MULTI F MAX Wiring Connections Power Wiring (208-230V) and Communications Cable Details Figure 100: Multi F LMU247HV System Power Wiring and Communications Cable.
MULTI F MULTI F MAX Wiring Connections Power Wiring (208-230V) and Communications Cable Details Figure 101: Multi F LMU369HV System Power Wiring and Communications Cable.
MULTI F MULTI F MAX Wiring Connections Power Wiring (208-230V) and Communications Cable Details Figure 102: Multi F MAX LMU540HV System Power Wiring and Communications Cable.
MULTI F MULTI F MAX Wiring Connections Indoor Unit Group Control Multi F and Multi F MAX Heat Pump System Engineering Manual Communication Cables Between Multiple Indoor Units Operating as a Group (Group Control) 1. If any indoor units were specified to operate in unison, use one (or multiple) three-core Group Control Kit (sold separately) containing extension and Y-splitter cables. One (1) group control cable kit for each indoor unit in the group except for the last indoor unit. 2.
MULTI F MULTI F MAX Acronyms Table 192: Table of Acronyms.
20001747 ISO 9001: 2008 LG ELECTRONICS INC. LG Electronics Commercial Air Conditioning Division 11405 Old Roswell Road Alpharetta, Georgia 30009 www.lg-dfs.com LG Electronics Products Support 1-888-865-3026 USA Follow the prompts for HVAC products.