SINGLE-ZONE VERTICAL AIR HANDLING UNIT ENGINEERING MANUAL Single-Zone Vertical Air Handling Unit System 18,000 - 48,000 Btu/h LV180HV4 (18,000 Btu/h) LV240HV4 (24,000 Btu/h) LV360HV4 (36,000 Btu/h) LV420HV (42,000 Btu/h) LV480HV (48,000 Btu/h)
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. A summary list of safety precautions is on page 3. For more technical materials such as submittals, catalogs, installation, owner’s, and service manuals, visit www.lghvac.com. For continual product development, LG Electronics U.S.
TABLE OF CONTENTS Unit Nomenclature...........................................................................................................................................................................................................4 LG Air Conditioner Technical Solution (LATS)..........................................................................................................................................................5-6 Vertical Air Handling Unit Product Data..............................
UNIT NOMENCLATURE Indoor Units and Outdoor Units L V N 180 H Single Zone Vertical Air Handling Unit Engineering Manual L = LG Frame Type: A: Art Cool™ S: Standard C: Four-Way Ceiling-Cassette D: Ceiling-Concealed Duct (Low Static) H: Ceiling-Concealed Duct (High Static) V: Vertical-Horizontal Air Handling N: Indoor Unit U: Outdoor Unit No N or U: System Nominal Capacity (Nominal cooling capacity in Btu/h): 18 = 18,000 48 = 48,000 24 = 24,000 36 = 36,000 42 = 42,000 System Type: H = Heat Pump Style
LG AIR CONDITIONER TECHNICAL SOLUTION (LATS) LG Air Conditioner Technical Solution (LATS) Software A properly designed and installed refrigerant piping system is critical to the optimal performance of LG air-conditioning systems. To assist engineers, LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning systems. Contact your LG Rep for the best software program for your application.
LG AIR CONDITIONER TECHNICAL SOLUTION (LATS) LATS Generates a Complete Project Report LATS software also generates a report containing project design parameters, cooling and heating design data, system component performance, and capacity data.
VERTICAL AIR HANDLING UNIT PRODUCT DATA “Mechanical Specifications” on page 8 “General Data” on page 10 “Electrical Data” on page 13 “Functions, Controls, and Options”on page 14 “Dimensions” on page 16 “Acoustic Data” on page 20 “Refrigerant Flow Diagrams” on page 31 “Wiring Diagrams” on page 33 “Electrical Connections” on page 38 “External Static Pressure and Airflow Ranges” on page 43 “Accessories” on page 48
MECHANICAL SPECIFICATIONS Single Zone Vertical Air Handling Unit Engineering Manual Casing Air Filter The unit is designed to operate in vertical up flow, down flow (requires conversion kit sold separately), horizontal left, and horizontal right configurations. Supply air exits from the top and return air enters from the bottom for a vertical up flow configuration. Return air opening is from the top for the vertical down flow configuration.
MECHANICAL SPECIFICATIONS Controls The indoor unit is supplied with an LG wired controller. Communication cable from the outdoor unit to the indoor unit must be a minimum of 18 AWG, four (4) conductor, shielded or unshielded (if shielded, must be grounded to chassis at ODU only) and must comply with applicable local and national codes. Condensate The unit is designed for gravity draining of condensate.
GENERAL DATA Pairing Table Table 1: Single Zone Vertical Air Handling Unit Pairing Table Single Zone Vertical Air Handling Unit Engineering Manual Outdoor Unit Model LUU188HV LUU248HV Indoor Unit Model LVN180HV4, LVN240HV4 (NJ frame) Remote Controller PQRCVCL0QW (LG supplied, wired) PQWRHQ0FDB (Optional, wireless) LUU368HV LUU428HV LUU488HV LVN360HV4, LVN420HV, LVN480HV (NK frame) PQRCVCL0QW (LG supplied, wired) PQWRHQ0FDB (Optional, wireless) 10 | PRODUCT DATA Due to our policy of continuous p
GENERAL DATA / SPECIFICATIONS Table 2: Vertical Air Handling Unit General Data.
GENERAL DATA / SPECIFICATIONS Table 3: Vertical Air Handling Unit General Data, continued. Type Vertical Air Handling Unit System (Model) (Indoor Unit / Outdoor Unit) LV180HV4 (LVN180HV4/ LUU188HV) LV240HV4 (LVN240HV4/ LUU248HV) LV360HV4 (LVN360HV4/ LUU368HV) LV420HV (LVN420HV/ LUU428HV) LV480HV (LVN480HV/ LUU488HV) Unit Data Single Zone Vertical Air Handling Unit Engineering Manual Refrigerant Type3 R410A Additional Refrigerant Charge (oz./ft.) 0.
ELECTRICAL DATA Electrical Data Table 4: Vertical Air Handling Unit ODU Electrical Data. Nominal Tons Model Name 1.5 LUU188HV 2.0 LUU248HV 3.0 Unit Hz Volts 60 208/230 Power Supply Compressor Condenser Fan Motor(s) Motor RLA (Cooling) Condenser Condenser Fan QuanFan tity. Motor FLA MCA MOP 20 30 1 13.5 1 1.6 20 30 1 13.5 1 1.6 LUU368HV 32 40 1 21.0 2 1.6 x 2 3.5 LUU428HV 32 40 1 21.0 2 1.6 x 2 4.0 LUU488HV 32 40 1 21.0 2 1.6 x 2 Voltage tolerance is ±10%.
FUNCTIONS, CONTROLS, AND OPTIONS Indoor Unit Functions, Controls, and Options for LVN180HV4, LVN240HV4, LVN360HV4, LVN420HV, LVN480HV Table 5: Indoor Unit—Functions, Controls and Options. Airflow Operation Controllers Single Zone Vertical Air Handling Unit Engineering Manual Indoor Unit Type Air Supply Outlet Airflow steps (fan/cool/heat) Washable anti-fungal1 Drain pump E.S.
FUNCTIONS, CONTROLS, AND OPTIONS Outdoor Unit Functions, Controls, and Options for LUU188HV, LUU248HV, LUU368HV, LUU428HV, LUU488HV Table 6: Outdoor Unit—Functions, Controls and Options.
OUTDOOR UNIT DIMENSIONS LUU188HV, LUU248HV Dimensions for LUU188HV, LUU248HV Single Zone Vertical Air Handling Unit Engineering Manual Figure 4: LUU188HV, LUU248HV Unit Dimensions. 16 | PRODUCT 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.
OUTDOOR UNIT DIMENSIONS LUU368HV, LUU428HV, LUU488HV Dimensions for LUU368HV, LUU428HV, LUU488HV Figure 5: LUU368HV, LUU428HV, LUU488HV Unit Dimensions. Product 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.
INDOOR UNIT DIMENSIONS LVN180HV4, LVN240HV4 Dimensions for LVN180HV4, LVN240HV4 (NJ frame) Figure 6: LVN180HV4, LVN240HV4 Indoor Unit Dimensions.
INDOOR UNIT DIMENSIONS LVN360HV4, LVN420HV, LVN480HV Dimensions for LVN360HV4, LVN420HV, LVN480HV (NK frame) Figure 7: LVN360HV4, LVN420HV, LVN480HV Indoor Unit Dimensions.
ACOUSTIC DATA Indoor Units Indoor Unit Sound Pressure Measurement • Measurements are taken 3.3 ft away from the front of the unit. • Sound pressure levels are measured in dB(A) with a tolerance of ±3. • Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745. Operating Conditions: • Power source: 220V/60 Hz • Sound level will vary depending on a range of factors including the construction (acoustic absorption coefficient) of a particular room in which the unit was installed.
ACOUSTIC DATA Indoor Units LVN180HV4, LVN240HV4 Sound Pressure Diagrams Figure 9: LVN180HV4 and LVN240HV4 Sound Pressure Level Diagrams. LVN180HV4 LVN240HV4 Product 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.
ACOUSTIC DATA Indoor Units LVN360HV4, LVN420HV Sound Pressure Diagrams Figure 10: LVN360HV4 and LVN420HV Sound Pressure Level Diagrams. LVN420HV Single Zone Vertical Air Handling Unit Engineering Manual LVN360HV4 22 | PRODUCT 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.
INDOOR ACOUSTIC DATA Indoor Units LVN480HV Sound Pressure Diagrams Figure 11: LVN480HV Sound Pressure Level Diagrams. LVN480HV Product 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.
ACOUSTIC DATA Indoor Units Sound Power Levels Table 8: Vertical Air Handling Unit Sound Power Levels. Indoor Unit Model Sound Power Levels dB(A) High Fan Speed Single Zone Vertical Air Handling Unit Engineering Manual NJ Frames LVN180HV4 59 LVN240HV4 60 NK Frames LVN360HV4 61 LVN420HV 61 LVN480HV 62 • Data is valid under diffuse field conditions. • Data is valid under nominal operating conditions.
ACOUSTIC DATA Indoor Units Sound Power Level Diagrams for LVN360HV4 and LVN420HV Figure 13: LVN360HV4 and LVN420HV Sound Power Level Diagrams. LVN360HV4 LVN420HV Product 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.
ACOUSTIC DATA Indoor Units Sound Power Level Diagram for LVN480HV Figure 14: LVN480HV Sound Power Level Diagram. Single Zone Vertical Air Handling Unit Engineering Manual LVN480HV 26 | PRODUCT 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.
ACOUSTIC DATA Outdoor Units Outdoor Unit Sound Pressure Level Measurement Figure 15: Vertical Air Handling Unit Outdoor Unit Sound Pressure Level Measurement Location. • Measurements taken with no attenuation and units operating at full load normal operating condition. • Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which the equipment is installed. • Sound power levels are measured in dB(A)±3.
ACOUSTIC DATA Outdoor Units Outdoor Unit Sound Pressure Diagrams Figure 16: LUU188HV , LUU248HV Sound Pressure Level Diagram.
ACOUSTIC DATA Outdoor Units Outdoor Unit Sound Power Levels Table 10: Vertical Air Handling Unit ODU Sound Power Levels. Outdoor Unit Model Sound Power Levels dB(A) Max LUU188HV 67 LUU248HV 68 LUU368HV 66 LUU428HV 67 LUU488HV 68 Sound Power Level Diagrams for LUU188HV, LUU248HV Figure 18: LUU188HV , LUU248HV Sound Power Level Diagrams. LUU248HV Due to our policy of continuous product innovation, some specifications may change without notification. ©LG Electronics U.S.A., Inc.
ACOUSTIC DATA Outdoor Units Sound Power Level Diagrams for LUU368HV, LUU428HV, LUU488HV Figure 19: LUU368HV , LUU428HV, LUU488HV Sound Power Level Diagrams. LUU428HV Single Zone Vertical Air Handling Unit Engineering Manual LUU368HV 30 | PRODUCT 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.
REFRIGERANT FLOW DIAGRAM Indoor Units Refrigerant Flow Diagrams for LVN180HV4, LVN240HV4, LVN360HV4, LVN420HV, LVN480HV Figure 20: Indoor Unit Refrigerant Flow Diagrams. Product Data Table 11: NJ, NK Frame Refrigerant Pipe Connection Port Diameters. Indoor Unit Model Liquid (inch) Vapor (inch) 3/8 5/8 3/8 5/8 NJ Frames LVN180HV4 LVN240HV4 NK Frames LVN360HV4 LVN420HV LVN480HV Due to our policy of continuous product innovation, some specifications may change without notification.
REFRIGERANT FLOW DIAGRAM Outdoor Units Refrigerant Flow Diagrams for LUU188HV, LUU248HV, LUU368HV, LUU428HV, LUU488HV Figure 21: LUU188HV, LUU248HV, LUU368HV, LUU428HV, LUU488HV Refrigerant Flow Diagrams.
INDOOR UNIT WIRING DIAGRAM LVN180HV4, LVN240HV4, LVN360HV4, LVN420HV, LVN480HV Figure 22: Indoor Unit Wiring Diagrams. Product 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.
OUTDOOR UNIT WIRING DIAGRAM LUU188HV, LUU248HV Single Zone Vertical Air Handling Unit Engineering Manual Figure 23: Outdoor Unit LUU188HV, LUU248HV Wiring Diagrams. 34 | PRODUCT 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.
OUTDOOR UNIT WIRING DIAGRAM LUU368HV, LUU428HV, LUU488HV Figure 24: Outdoor Unit LUU368HV, LUU428HV, LUU488HV Wiring Diagrams. Product 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.
ELECTRICAL WIRING NJ/NK Frame Wiring Diagram Legend Table 13: NJ/NK Frame Wiring Diagram Legend.
ELECTRICAL WIRING Dip Switch Settings Dip Switch Settings for Indoor Unit PCB Table 14: NJ/NK Frame DIP Switch Settings. Dip Switch Function Off On Description COMMUNICATION Off (default) _ _ SW2 CYCLE Off (default) _ _ SW3 GROUP CONTROL Master Slave Group control setting using 7-Day Programmable Controller; selects Master/ Slave on each indoor unit. SW4 DRY CONTACT MODE Variable Auto Sets operation mode for optional Dry Contact accessory. 1.
ELECTRICAL CONNECTIONS Single Zone Vertical Air Handling Unit Engineering Manual General Power Wiring / Communications Cable Guidelines • • • • • • • • Follow manufacturer’s circuit diagrams displayed on the inside of the control box cover. Have a separate power supply for the indoor units. Provide a circuit breaker switch between the power source and the indoor unit. Confirm power source specifications. Properly ground the outdoor unit and the indoor unit per NEC and local codes.
ELECTRICAL CONNECTIONS Figure 25: LV180HV4 and LV240HV4 General Power/Communications System Schematic. Power Supply Circuit Breaker Outdoor Unit Product Data Ground Wiring Indoor Unit Figure 26: LV360HV4, LV480HV, and LV488HV General Power/Communications System Schematic. Power Supply Circuit Breaker Ground Wiring Outdoor Unit Indoor Unit • Secure the separate wires in the control box panel using zip ties. • Secure wiring with accessory clamps so that it does not touch the piping.
ELECTRICAL CONNECTIONS Connecting the Power Wiring and Communications Cable Figure 27: Connecting the Power Wiring and Communications Cable. 2. Knockout the access holes for the wiring. Insert the power wiring/ communications cable from the outdoor unit through the conduits, pass the conduits through the designated access holes, and then insert the conduits into the control box.
ELECTRICAL CONNECTIONS Controller Options Vertical Air Handling indoor units include LG-supplied wired controller (PQRCVCL0QW), but other optional LG-supplied wired controllers are available. The wireless handheld controller (Model No. PQWRHQ0FDB) is also an optional accessory with use of the wired controller. • • • • • Figure 30: PQRCVCL0QW Wired Controller. Operation Display Panel Operation Display Panel: Displays operation conditions. Temperature Control Button: Sets desired temperature.
ELECTRICAL CONNECTIONS Wired Controller Placement Figure 32: Proper Location for the Wired Controller. Single Zone Vertical Air Handling Unit Engineering Manual Wired controllers include a sensor to detect room temperature. To maintain comfort levels in the conditioned space, the wired controller must be installed in a location away from direct sunlight, high humidity, and where it could be directly exposed to cold air.
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES External Static Pressure (ESP) Setting Values (NJ frame) Figure 36: ESP Setting Values (NJ frame). Product Data External Static Pressure Setting Values (NK frame) Figure 37: ESP Setting Values (NK frame). 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.
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES NJ, NK Frames IDU External Static Pressure Setting Values LVN180HV4 and LVN240HV4 (NJ Frame) Table 15: Vertical Air Handling Unit NJ Frame Indoor Unit External Static Pressure and Air Flow Tables. Single Zone Vertical Air Handling Unit Engineering Manual Static Pressure (in. wg) Model No. / Nominal Capacity of System (Btu/h) 0.1 0.2 0.3 Airflow Rate / CFM LVN180HV4/ 18,000 LVN240HV4/ 24,000 0.4 0.5 Setting Value (in. WG) 0.6 0.
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES Air Filter Static Pressure Drop Factors Table 17: Air Filter Static Pressure Drop Factors. Capacity (kBtu/h [tons]) Flow Rate (CFM) Static Pressure Drop (in wg) 18 (1.5) 24 (2.0) High (640) -0.04 Middle(580) -0.04 Low (480) -0.04 High (710) -0.04 Middle(640) -0.04 Low (480) -0.04 High (1100) -0.08 Middle(1000) -0.08 Low (900) -0.08 High (1260) -0.09 Middle(1100) -0.08 36 (3.0) 42 (3.5) -0.08 -0.09 Middle(1260) -0.09 Low (1000) -0.
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES Electric Heater Static Pressure Drop Factors Single Zone Vertical Air Handling Unit Engineering Manual Table 19: Electric Heater Static Pressure Drop Factors. Heater Capacity (kW) Static Pressure Drop (in. wg) 0 0 3, 5 -0.01 8, 10 -0.02 15 -0.03 20 -0.04 in wg = inch water gauge If the electric heater has been installed, then the ESP value has to be set. For every increase in static pressure by 0.01 in wg, the ESP value must be increased by 1.
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES Down Flow - Air Filter (optional) Static Pressure Drop Factors Table 21: Down Flow - Air Filter Static Pressure Drop Factors. Capacity (kBtu/h [tons]) Flow Rate (CFM) Static Pressure Drop (in wg) 18 (1.5) High (640) -0.04 Middle(580) -0.04 24 (2.0) 36 (3.0) 42 (3.5) -0.04 -0.04 Middle(640) -0.04 Low (480) -0.04 High (1100) -0.06 Middle(1000) -0.06 Low (900) -0.06 High (1260) -0.07 Middle(1100) -0.06 Low (1000) -0.06 High (1400) -0.
ACCESSORIES Electric Heater Single Zone Vertical Air Handling Unit Engineering Manual Table 23: Electric Heater Capacities for Vertical Air Handling Units. Accessory Model Number 3kW Electric Heater ANEH033B1 5kW Electric Heater ANEH053B1 8kW Electric Heater ANEH083B2 10kW Electric Heater ANEH103B2 15kW Electric Heater ANEH153B2 20kW Electric Heater ANEH203B2 Figure 38: Electric Heater.
ACCESSORIES Electric Heater, continued Table 24: Electric Heater Capacities. Indoor Unit Model No.
ACCESSORIES Single Zone Vertical Air Handling Unit Engineering Manual LG Monitoring View (LGMV) Diagnostic Software and Cable LGMV software allows the service technician or commissioning agent to connect a computer USB port to the outdoor unit main printed circuit board (PCB) using an accessory cable without the need for a separate interface device.
VERTICAL AIR HANDLING UNIT PERFORMANCE DATA “Cooling Capacity Data” on page 52 “Heating Capacity Data” on page 57 “Maximum Heating Capacity Data” on page 62 “Equipment Selection Procedure” on page 67
PERFORMANCE DATA Cooling Capacity Tables Cooling Capacity Table for LV180HV4 (LUU188HV + LVN180HV4) Table 26: Cooling Capacity Table for LUU188HV + LVN180HV4. TC SHC PI TC SHC PI -4 17.70 12.85 0.80 18.80 13.58 0.83 0 17.69 12.93 0.81 18.79 13.66 5 17.67 13.04 0.82 18.77 13.77 10 17.66 13.14 0.83 18.76 15 17.65 13.25 0.84 20 17.63 13.35 0.86 25 17.62 13.45 30 17.60 35 17.59 40 Single Zone Vertical Air Handling Unit Engineering Manual Outdoor Air Temp.
PERFORMANCE DATA Cooling Capacity Tables Cooling Capacity Table for LV240HV4 (LUU248HV + LVN240HV4) Table 27: Cooling Capacity Table for LUU248HV + LVN240HV4. Outdoor Air Temp. (°F DB) Indoor Air Temp. °F DB / °F WB TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI -4 23.60 17.36 1.14 25.06 18.34 1.18 26.53 17.75 1.22 27.58 18.13 1.23 29.46 18.28 1.26 30.92 18.63 1.28 0 23.58 17.46 1.15 25.05 18.44 1.19 26.51 17.86 1.23 27.57 18.23 1.25 29.
PERFORMANCE DATA Cooling Capacity Tables Cooling Capacity Table for LV360HV4 (LUU368HV + LVN360HV4) Table 28: Cooling Capacity Table for LUU368HV + LVN360HV4. TC SHC PI -4 35.39 26.37 1.70 0 35.37 26.52 1.72 5 35.34 26.76 10 35.32 15 35.29 20 Single Zone Vertical Air Handling Unit Engineering Manual Outdoor Air Temp. (°F DB) Indoor Air Temp. °F DB / °F WB 68 / 57 72 / 61 TC SHC 77 / 64 86 / 72 90 / 75 TC SHC PI TC SHC PI TC SHC PI TC SHC PI 37.59 27.86 1.77 39.
PERFORMANCE DATA Cooling Capacity Tables Cooling Capacity Table for LV420HV (LUU428HV + LVN420HV) Table 29: Cooling Capacity Table for LUU428HV + LVN420HV. Outdoor Air Temp. (°F DB) Indoor Air Temp. °F DB / °F WB TC SHC PI TC SHC PI TC SHC -4 41.29 29.99 2.25 43.86 31.68 2.33 46.42 30.67 2.42 48.27 31.32 0 41.27 30.16 2.27 43.83 31.86 2.36 46.40 30.85 2.44 48.25 31.50 68 / 57 72 / 61 77 / 64 80 / 67 PI TC SHC 86 / 72 PI TC SHC 90 / 75 PI TC SHC PI 2.44 51.55 31.
PERFORMANCE DATA Cooling Capacity Tables Cooling Capacity Table for LV480HV (LUU488HV + LVN480HV) Table 30: Cooling Capacity Table for LUU488HV + LVN480HV. TC SHC PI TC SHC -4 47.19 33.83 2.84 50.12 35.73 0 47.16 34.02 2.87 50.09 5 47.13 34.32 2.92 50.05 10 47.09 34.59 2.96 15 47.05 34.87 20 47.02 35.14 25 46.98 30 46.95 35 Single Zone Vertical Air Handling Unit Engineering Manual Outdoor Air Temp. (°F DB) Indoor Air Temp.
PERFORMANCE DATA Heating Capacity Tables Heating Capacity Table for LV180HV4 (LUU188HV + LVN180HV4) Table 31: Heating Capacity Table for LUU188HV + LVN180HV4. Indoor Air Temp.: °FDB Outdoor Air Temp. 61.0 64.0 68.0 70.0 72.0 75.0 °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 7.66 1.26 7.08 1.31 7.05 1.32 6.97 1.33 6.90 1.34 6.59 1.39 0 -0.4 9.23 1.26 8.68 1.31 8.55 1.33 8.43 1.35 8.33 1.36 7.98 1.40 5 4.5 11.10 1.27 10.58 1.32 10.33 1.35 10.
PERFORMANCE DATA Heating Capacity Tables Heating Capacity Table for LV240HV4 (LUU248HV + LVN240HV4) Table 32: Heating Capacity Table for LUU248HV + LVN240HV4. Single Zone Vertical Air Handling Unit Engineering Manual Outdoor Air Temp. Indoor Air Temp.: °FDB 61.0 64.0 68.0 70.0 72.0 75.0 °F DB °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 12.73 1.64 11.85 1.71 11.74 1.73 11.60 1.74 11.48 1.75 10.98 1.81 0 -0.4 14.51 1.67 13.68 1.73 13.45 1.76 13.26 1.77 13.
PERFORMANCE DATA Heating Capacity Tables Heating Capacity Table for LV360HV4 (LUU368HV + LVN360HV4) Table 33: Heating Capacity Table for LUU368HV + LVN360HV4. Indoor Air Temp.: °FDB Outdoor Air Temp. 61.0 64.0 68.0 70.0 72.0 75.0 °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 16.28 2.30 15.09 2.39 15.00 2.41 14.82 2.43 14.68 2.44 14.02 2.53 0 -0.4 19.29 2.35 18.16 2.44 17.87 2.47 17.61 2.50 17.41 2.51 16.67 2.60 5 4.5 22.86 2.41 21.80 2.50 21.28 2.
PERFORMANCE DATA Heating Capacity Tables Heating Capacity Table for LV420HV (LUU428HV + LVN420HV) Table 34: Heating Capacity Table for LUU428HV + LVN420HV. Indoor Air Temp.: °FDB Single Zone Vertical Air Handling Unit Engineering Manual Outdoor Air Temp. 61.0 64.0 68.0 72.0 75.0 °F DB °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 20.39 2.80 18.93 2.91 18.79 2.95 18.57 2.97 18.38 2.98 17.57 3.09 0 -0.4 23.74 2.85 22.37 2.96 22.00 3.01 21.68 3.04 21.43 3.
PERFORMANCE DATA Heating Capacity Tables Heating Capacity Table for LV480HV (LUU488HV + LVN480HV) Table 35: Heating Capacity Table for LUU488HV + LVN480HV. Indoor Air Temp.: °FDB Outdoor Air Temp. 61.0 64.0 68.0 70.0 72.0 75.0 °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 25.60 3.39 23.81 3.53 23.61 3.57 23.32 3.59 23.08 3.61 22.07 3.74 0 -0.4 29.41 3.47 27.72 3.61 27.25 3.66 26.86 3.69 26.55 3.72 25.43 3.85 5 4.5 33.94 3.57 32.37 3.70 31.59 3.
PERFORMANCE DATA Maximum Heating Capacity Tables Maximum Heating Capacity Table for LV180HV4 (LUU188HV + LVN180HV4) Table 36: Maximum Heating Capacity Table for LUU188HV + LVN180HV4. Outdoor Air Temp. Single Zone Vertical Air Handling Unit Engineering Manual °F DB °F WB Indoor Air Temp.: °FDB 61.0 TC 64.0 PI 68.0 TC PI PI 72.0 75.0 TC PI TC PI TC PI -4 -4.4 11.77 2.54 11.51 2.62 11.18 2.70 11.00 2.75 10.85 2.79 10.46 2.87 0 -0.4 14.15 2.43 13.84 2.51 13.44 2.59 13.
PERFORMANCE DATA Maximum Heating Capacity Tables Maximum Heating Capacity Table for LV240HV4 (LUU248HV + LVN240HV4) Table 37: Maximum Heating Capacity Table for LUU248HV + LVN240HV4. Outdoor Air Temp. Indoor Air Temp.: °FDB 61.0 64.0 68.0 70.0 72.0 75.0 °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 16.06 3.04 15.70 3.14 15.25 3.24 15.00 3.30 14.80 3.34 14.26 3.44 0 -0.4 18.43 3.00 18.02 3.10 17.51 3.20 17.22 3.25 16.99 3.30 16.37 3.40 5 4.5 21.41 2.
PERFORMANCE DATA Maximum Heating Capacity Tables Maximum Heating Capacity Table for LV360HV4 (LUU368HV + LVN360HV4) Table 38: Maximum Heating Capacity Table for LUU368HV + LVN360HV4. Single Zone Vertical Air Handling Unit Engineering Manual Outdoor Air Temp. Indoor Air Temp.: °FDB 61.0 64.0 68.0 70.0 72.0 75.0 °F DB °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 23.55 3.97 23.02 4.10 22.36 4.23 22.00 4.30 21.71 4.36 20.92 4.49 0 -0.4 27.35 4.01 26.74 4.14 25.
PERFORMANCE DATA Maximum Heating Capacity Tables Maximum Heating Capacity Table for LV420HV (LUU428HV + LVN420HV) Table 39: Maximum Heating Capacity Table for LUU428HV + LVN420HV. Outdoor Air Temp. Indoor Air Temp.: °FDB 61.0 64.0 68.0 70.0 72.0 75.0 °F DB °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 25.69 4.33 25.12 4.48 24.40 4.62 24.00 4.70 23.68 4.76 22.82 4.91 0 -0.4 29.50 4.37 28.84 4.52 28.01 4.66 27.56 4.74 27.19 4.81 26.20 4.95 4.5 34.25 4.
PERFORMANCE DATA Maximum Heating Capacity Tables Maximum Heating Capacity Table for LV480HV (LUU488HV + LVN480HV) Table 40: Maximum Heating Capacity Table for LUU488HV + LVN480HV. Single Zone Vertical Air Handling Unit Engineering Manual Outdoor Air Temp. Indoor Air Temp.: °FDB 61.0 64.0 68.0 70.0 72.0 75.0 °F DB °F WB TC PI TC PI TC PI TC PI TC PI TC PI -4 -4.4 27.83 4.71 27.21 4.86 26.43 5.02 26.00 5.10 25.65 5.17 24.72 5.33 0 -0.4 31.64 4.77 30.93 4.92 30.
EQUIPMENT SELECTION PROCEDURE Correction Factors Cooling / Heating Correction Factors For Single Zone Vertical Air Handling Unit systems, calculate the equivalent length of the liquid line from the outdoor unit to the indoor unit. Also, determine the elevation difference of the indoor unit above or below the outdoor unit. Find corresponding cooling or heating capacity correction factors as shown below.
EQUIPMENT SELECTION PROCEDURE Correction Factors Equivalent Piping Length for Piping Components Table 43: Equivalent Piping Length for Elbows. Component Single Zone Vertical Air Handling Unit Engineering Manual Elbow (ft.) Size (Inches) 1/4 3/8 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4 2-1/8 0.5 0.6 0.7 0.8 1.2 1.3 1.5 1.6 1.8 2.0 2.1 2.3 2.5 2.
EQUIPMENT SELECTION PROCEDURE Check the Indoor and Outdoor Unit Selection(s) Compare the corrected cooling and heating capacities to the load calculations. Is each capacity sufficient for the zone it serves? For each indoor unit, the corrected capacity must be at least equal to the total of the cooling design load (plus ventilation load, if applicable) for the space served by the indoor unit.
VERTICAL AIR HANDLING UNIT APPLICATION GUIDELINES “Placement Considerations” on page 71 “Clearances” on page 75 “Installing Outdoor Units Indoors” on page 78 “Refrigerant Piping Design” on page 80
PLACEMENT CONSIDERATIONS Indoor Unit Selecting the Best Location for the Indoor Unit Figure 41: Recommended Clearances for Vertical Air Handling Unit IDU. Dos Minimum 14 inches Front Rear 0 inches 0 inches* 0 inches* More than 23-5/8 inches Don’ts *When using top panel access holes for power wiring / communications cable • Avoid installing the unit near high-frequency generators. Minimum 14 inches • No obstacles must be present to prevent indoor unit air circulation.
PLACEMENT CONSIDERATIONS Outdoor Unit Selecting the Best Location for the Outdoor Unit Single Zone Vertical Air Handling Unit Engineering Manual Do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. These conditions can cause a fire, resulting in bodily injury or death. • Do not install the unit in a location where acidic solution and spray (sulfur) are often used as it can cause bodily injury or death.
PLACEMENT CONSIDERATIONS Outdoor Unit Planning for Snow and Ice To ensure the outdoor unit operates properly, certain measures are required in locations where there is a possibility of heavy snowfall or severe windchill or cold: 1. Prepare for severe winter wind chills and heavy snowfall, even in areas of the country where these are unusual phenomena. 2. Position the outdoor unit so that its airflow fans are not buried by direct, heavy snowfall.
PLACEMENT CONSIDERATIONS Outdoor Unit Single Zone Vertical Air Handling Unit Engineering Manual Wind Protection If the outdoor unit is placed on a roof, position it with the compressor end (no coil surface) in the direction of the prevailing wind as shown in the figure at right. In cooler climates, it may be beneficial to position the unit in direct sunlight to assist with defrost operations.
CLEARANCES Outdoor Unit Minimum Clearance Requirements for Vertical Air Handling Unit ODUs Proper clearance for the outdoor unit coil is critical for proper unit operation. When installing the outdoor unit, consider service, inlet and outlet and minimum allowable space requirements as illustrated in the diagrams below and on the next few pages.
CLEARANCES Outdoor Unit Minimum Clearance Requirements for LUU368HV, LUU428HV, LUU488HV Outdoor Units • Installation clearances must comply with local building codes. • All figures not to scale. • Never place multiple units facing back to front or front to back as shown immediately below here or high and low system pressure problems may occur. Figure 49: Improper Outdoor Unit Placement.
CLEARANCES Outdoor Unit Figure 52: Proper Outdoor Unit Placement and Clearances, continued. Side by Side—High Rear and Side Walls with Building Overhang " LR = Rear wall height LF = Front wall height H = Unit height Min. 40" Min. 4" w flo Air Min. Min. 4" 12" LR w flo Air M in. 4 Figure 53: Proper Outdoor Unit Placement and Clearances, continued.
INSTALLING OUTDOOR UNITS INDOORS Single Zone Vertical Air Handling Unit Engineering Manual Installing Outdoor Units Indoors LG outdoor units are engineered to be mounted outdoors and include technology designed to minimize the negative effects of winter weather’s freezing rain, sleet, and snow. Some building projects, however, necessitate placing the HVAC outdoor units indoors: • Lack of ground space. • Lack of an appropriate outdoor location that meets system design requirements.
INSTALLING OUTDOOR UNITS INDOORS Provide a means to drain the condensate generated during heating mode and defrost cycle in addition to rainwater that infiltrates the inlet louver enclosed area. • Install a field-provided drain pan under the outdoor units and provide a path to a nearby floor drain. • If the ambient air temperature is expected to drop below 32°F in the enclosure, heat the bottom surface of the pan, drain line, and floor drain so that the condensate does not freeze before reaching the drain.
REFRIGERANT PIPING DESIGN Design Guideline Summary Device Connection Limitations A single-zone system consists of one outdoor unit and one indoor unit. One of the most critical elements of a single-zone system is the refrigerant piping. The table below lists pipe length limits that must be followed in the design of a single-zone Vertical Air Handling Unit refrigerant pipe system. Table 47: Single-Zone Vertical Air Handling Unit Refrigerant Piping System Limitations.
REFRIGERANT PIPING DESIGN Design Guideline Summary System Layout Figure 55: Typical LV360HV4, LV480HV and LV488HV System Layout. Outdoor Unit Indoor Unit Unit = Feet Max. Length = A Max. Elevation = B 246 246 A A 98 B Outdoor Unit Application Guidelines B 98 Indoor 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.
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