SINGLE ZONE WALL MOUNTED EXTENDED PIPING ENGINEERING MANUAL Single Zone Wall Mount Systems 2 to 2-3/4 Tons
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TABLE OF CONTENTS Introduction...................................................................................................................................................................................................5 Single Zone High Wall Mounted Extended Piping Engineering Manual Architectural Appeal......................................................................................................................................................................................6 Product Data.
INTRODUCTION “Architectural Appeal” on page 6
ARCHITECTURAL APPEAL Convergence of Technological Innovation with Flexibility and Style Benefits of Single Zone Wall Mounted Extended Piping Systems Single Zone High Wall Mounted Extended Piping Engineering Manual • Available from 22,000 - 33,000 Btu/h • Inverter technology • All season use - heat pump models for both cooling and heating capabilities • Operating range for outdoor units of 14°F to 118°F (DB) in cooling and -4°F to 75°F (WB) in heating • Operating range for indoor units of 53°F to 75°F in
PRODUCT DATA “Product Features and Benefits” on page 8 “Unit Nomenclature” on page 9 “General Data” on page 10 “Electrical Data” on page 12 “Functions, Controls, Options” on page 13 “Outdoor Unit Dimensions” on page 14 “Outdoor Unit Center of Gravity / Corner Weight” on page 15 “Indoor Unit Dimensions” on page 16 “Acoustic Data” on page 17 “Refrigerant Flow Diagrams” on page 19 “Indoor Unit Wiring Diagram” on page 21 “Outdoor Unit Wiring Diagrams” on page 22 “Accessories” on page 24
PRODUCT FEATURES AND BENEFITS Single Zone Wall Mounted Extended Piping Engineering Manual Single Zone Systems Single zone wall mounted extended piping systems are equipped with inverter components that offer superior load matching and long piping installation. The product works for optimizing power consumption in residential and small office buildings. Utilizing multiple indoor wall mount units each with custom temperature controls allow for precise temperature settings in each zone of the building.
UNIT NOMENCLATURE Single Zone Indoor and Outdoor Units LS N 243 HLV Family LS = Wall Mounted Type N = Indoor Wall Mount Unit U = Outdoor Heat Pump Unit Nominal Capacity (Nominal cooling capacity in Btu/h) 243 = 22,000 303 = 30,000 363 = 33,000 Product Data Indoor/Outdoor Product HLV - Extended Piping 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.
GENERAL DATA Single Zone Wall Mounted Extended Piping System Pairing Table Single Zone Wall Mounted Extended Piping Engineering Manual The following tables show the available outdoor and indoor units, along with the factory provided controllers.
GENERAL DATA Single Zone Wall Mounted Extended Piping Specifications Table 2: Single Zone Wall Mounted Extended Piping Specifications. System (Model) (Indoor Unit / Outdoor Unit) 3,070 ~ 22,000 ~ 29,515 1.76 3,070 ~ 27,000 ~ 38,898 2.38 11.34 3,070 ~ 30,000 ~ 34,000 3.0 3,070 ~ 32,000 ~ 38,898 3.1 10.32 3,070 ~ 33,000 ~ 34,000 4.04 3,070 ~ 35,200 ~ 38,898 3.84 9.17 27,410 (102%) 23,690 (88%) 22,090 (82%) 20,580 (76%) 12.50 21.50 11.0 32,490 (102%) 28,080 (88%) 26,180 (82%) 24,390 (76%) 10.00 19.00 10.
ELECTRICAL DATA Single Zone Wall Mounted Extended Piping Engineering Manual Table 3: Single Zone Wall Mounted Extended Piping Electrical Data Model Number Nominal Tons LS243HLV LS303HLV LS363HLV 2 2-1/2 2-3/4 Voltage tolerance is ±10%. Maximum allowable voltage unbalance is 2%. RLA = Rated Load Amps. 12 | PRODUCT DATA (A) Compressor Qty Compressor Cool / Heat 1 1 1 14.6/14.6 14.6/14.6 14.6/14.6 Fan Qty 1 1 1 Outdoor Unit Fan (A) 0.25 0.25 0.
FUNCTIONS, CONTROLS, OPTIONS Controllers Special Function Kit 1 2 Indoor Unit Type Air supply outlet Airflow direction (left/right) Airflow direction (up/down) Auto swing (left/right) Auto swing (up/down) Airflow steps (fan/cool/heat) Auto swing Auto wind Jet-cool/heat Comfort air Washable anti-fungal1 Deodorizing filter Plasma2 3M Micro Dust filter 3M Micro Protection filter2 Drain pump Electric heater Defrost Low ambient Hot start Self diagnostics Outdoor Unit Drain Pan Heater Dry (Dehumidification oper
OUTDOOR UNIT DIMENSIONS LSU243HLV, LSU303HLV, LSU363HLV Single Zone Wall Mounted Extended Piping Engineering Manual Drain Hole 2-Ø13/16 21-1/2 13-13/32 14-3/16 6-15/32 12-19/32 34-1/4 29/32 3-5/32 13-3/32 17/32 2-3/4 5-7/8 4 21-1/2 7/8 2 3 No Unit : inch (mm) 14 | PRODUCT DATA 20-27/32 4-7/32 6-25/32 6-29/32 1 7-11/16 25° 14° 15-3/32 31-1/2 1-25/32 Part Name 1 Air Discharge Grille 2 Gas Pipe Connection Port 3 Liquid Pipe Connection Port 4 Control Box Remark Due to our
OUTDOOR UNIT CENTER OF GRAVITY / CORNER WEIGHT Figure 1: Center of Gravity and Corner Weight Dimensions Diagram. d D A e c C B Product Data b a Table 5: Center of Gravity and Corner Weight Dimensions. Model LSU243HLV, LSU303HLV, LSU363HLV Weight (lb.) Shipping Net 132.3 124.6 Center of Gravity (inch) a b c 21-3/32 13-25/32 6-23/32 Leg (inch) d e 21-1/2 13-13/32 Due to our policy of continuous product innovation, some specifications may change without notification. © LG Electronics U.S.A.
INDOOR UNIT DIMENSIONS LSN243HLV, LSN303HLV, LSN363HLV 3 10-7/16 13-5/8 2-17/32 1 4 2-11/32 40-9/16 1-3/32 5-31/32 2 1-1/16 1-1/4 2-7/16 1-7/16 1-9/32 2-13/32 1/4 x 1/8 5/8 1/8 x 1/4 5 6-9/16 1-11/16 17-7/32 1-11/16 33-25/32 2-17/32Ø 6-9/16 2-17/32Ø Single Zone Wall Mounted Extended Piping Engineering Manual 46-7/8 No 1 2 3 4 5 4-23/32 16 | PRODUCT DATA 4-23/32 Part Name Remark Front Panel Display & Signal Receiver Air Suction Grille Knockout Hole For pipe and cable Instal
OUTDOOR UNIT ACOUSTIC DATA Figure 2: Outdoor Unit Sound Levels Center of Outdoor Unit 3.28 ft • Measurements are taken 3.28 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. • 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.
INDOOR UNIT ACOUSTIC DATA • Measurements are taken 3.28 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. • 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. Table 7: Indoor Unit Sound Pressure Data 3.28 ft 2.
REFRIGERANT FLOW DIAGRAMS LSU/LSN243HLV Indoor Unit Outdoor Unit Field Pipin g (Copper Tubing) 2-Way Valve Liquid Side EEV M TH1 Heat Exchanger (Evaporator) TH4 Heat Exchanger (Condenser) M TH3 3-Way Valve TH2 Reversing Valve Field Pipin g (Copper Tubing) TH5 Vapor Side Product Data TH6 Accumulator : Cooling : Heating Compressor Thermistor.
REFRIGERANT FLOW DIAGRAMS LSU/LSN303HLV, LSU/LSN363HLV Indoor Unit Outdoor Unit Field Pipin g (Copper Tubing) 2-Way Valve Single Zone Wall Mounted Extended Piping Engineering Manual Liquid Side EEV M TH1 Heat Exchanger (Evaporator) TH4 Heat Exchanger (Condenser) M TH3 3-Way Valve TH2 Reversing Valve Field Pipin g (Copper Tubing) TH5 Vapor Side TH6 Accumulator : Cooling : Heating Compressor Thermistor.
WIRING DIAGRAMS LSN243HLV, LSN303HLV, LSN363HLV 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.
WIRING DIAGRAMS Single Zone Wall Mounted Extended Piping Engineering Manual LSU243HLV 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.
WIRING DIAGRAMS LSU303HLV, LSU363HLV 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.
ACCESSORIES Single Zone Wall Mounted Extended Piping 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.
PERFORMANCE DATA “Cooling Capacity Data” on page 26 “Heating Capacity Data” on page 28 “Maximum Heating Capacity” on page 30 “Air Flow and Temperature Distributions Graphs” on page 32
PERFORMANCE DATA Cooling Capacity LSN/LSU243HLV Table 8: LSN243HLV/LSU243HLV Cooling Capacities Single Zone Wall Mounted Extended Piping Engineering Manual Outdoor Air 64 / 53 Temp. TC SHC (°F DB) 0 5 7 10 14 23 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 118 122 13.32 13.07 13.16 13.29 13.47 14.46 14.69 15.25 15.82 16.39 16.96 17.52 18.09 18.66 18.49 18.32 18.15 17.98 17.81 17.64 17.47 17.01 16.56 16.10 15.53 15.18 14.72 11.54 11.38 11.48 11.64 11.85 12.72 12.92 13.42 13.92 14.42 14.
PERFORMANCE DATA Cooling Capacity LSN/LSU303HLV, LSN/LSU363HLV Table 10: LSN363HLV/LSU363HLV Cooling Capacities Outdoor Air 64 / 53 Temp. (°F DB) TC SHC 19.98 19.60 19.73 19.94 20.21 21.69 22.03 22.88 23.73 24.58 25.44 26.29 27.14 27.99 27.74 27.48 27.23 26.97 26.72 26.46 26.21 25.52 24.84 24.15 23.29 22.77 22.09 14.13 13.93 14.06 14.25 14.50 15.58 15.82 16.43 17.04 17.65 18.26 18.88 19.49 20.10 19.92 19.73 19.55 19.37 19.19 19.01 18.83 18.33 17.84 17.34 16.72 16.35 16.68 PI 1.57 1.64 1.66 1.69 1.72 1.
PERFORMANCE DATA Heating Capacity LSN/LSU243HLV, LSN/LSU303HLV Table 11: LSN243HLV/LSU243HLV Heating Capacities Outdoor Air Temp. Single Zone Wall Mounted Extended Piping Engineering Manual °F DB °F WB -3 0 1 6 10 16 17 19 24 32 41 43 47 53 59 64 70 75 -4 -1 0 5 9 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB/ °F WB) TC 60 13.77 14.99 15.18 15.87 16.56 17.09 17.20 17.43 19.12 22.92 26.30 27.14 28.41 28.70 29.35 29.97 30.54 30.97 PI 1.59 1.74 1.76 1.82 1.88 1.90 1.92 1.96 2.
PERFORMANCE DATA Heating Capacity LSN/LSU363HLV Table 13: LSN363HLV/LSU363HLV Heating Capacities Outdoor Air Temp. °F DB °F WB -3 0 1 6 10 16 17 19 24 32 41 43 47 53 59 64 70 75 -4 -1 0 5 9 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB/ °F WB) TC 17.96 19.55 19.80 20.68 21.59 22.27 22.43 22.73 24.93 29.88 34.29 35.39 37.04 37.41 38.26 39.08 39.82 40.37 60 PI 2.56 2.81 2.84 2.94 3.03 3.07 3.10 3.16 3.28 3.54 3.77 3.83 3.92 3.96 4.00 4.07 4.13 4.19 TC 17.41 18.95 19.19 20.06 20.
PERFORMANCE DATA Maximum Heating Capacity LSN/LSU243HLV, LSN/LSU303HLV Table 14: LSN243HLV/LSU243HLV Maximum Heating Capacities Outdoor Air Temp. Single Zone Wall Mounted Extended Piping Engineering Manual °F DB °F WB -3 0 1 6 10 16 17 19 24 32 41 43 47 53 59 64 70 75 -4 -1 0 5 9 14 15 17 23 30 38 40 43 50 53 57 61 65 Indoor Air Temperature (°F DB/ °F WB) TC 60 20.85 22.03 22.51 24.99 26.30 27.52 27.83 28.17 30.27 33.63 37.42 38.26 39.96 41.00 41.52 41.85 41.99 41.89 PI 3.11 3.14 3.15 3.25 3.28 3.
PERFORMANCE DATA Maximum Heating Capacity LSN/LSU363HLV Table 16: LSN363HLV/LSU363HLV Maximum Heating Capacities Outdoor Air Temp. °F DB °F WB -4 -1 0 5 9 14 15 17 23 30 38 40 43 50 53 57 61 65 TC 27.18 28.72 29.35 32.59 34.30 35.88 36.28 36.72 37.30 38.22 39.25 39.48 39.96 41.00 41.52 41.85 41.99 41.89 PI 5.01 5.06 5.08 5.24 5.30 5.35 5.33 5.38 5.27 4.88 4.28 4.16 3.68 3.75 3.67 3.59 3.43 3.13 TC 27.03 28.50 29.11 32.26 33.92 35.46 35.86 36.29 36.86 37.77 38.80 39.03 39.49 40.49 41.48 41.23 41.26 41.
PERFORMANCE DATA Air Flow and Temperature Distribution Graphs LSN243HLV Cooling Single Zone Wall Mounted Extended Piping Engineering Manual Air Velocity [m/s (ft./s)] Temperature [ ( )] 2(6.6) 0.3(1) 0.5(1.6) 1.5(4.9) 1(3.3) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 m 2 ft. 6.6 1 3.3 0 0 24(75) m ft. 6.6 1 3.3 0 0 18(64) 2 22(72) 26(79) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.
PERFORMANCE DATA Air Flow and Temperature Distribution Graphs LSN243HLV, continued. Heating Air Velocity [m/s (ft./s)] Temperature [ ( )] m 0.3(1) 0.5(1.6) 1.5(4.9) 1(3.3) 7(23) 2 ft. 6.6 1 3.3 2(6.6) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 0 0 36(97) 2 m ft. 6.6 1 3.3 0 0 26(79) 30(86) 28(82) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 Side View ) Air Velocity [m/s (ft./s)] Air Velocity [m/s (ft./s)] m ft. 5 16.4 4 13.1 0.3(1) 0.5(1.6) 2 1(3.
PERFORMANCE DATA Air Flow and Temperature Distribution Graphs LSN303HLV Cooling Single Zone Wall Mounted Extended Piping Engineering Manual Air Velocity [m/s (ft./s)] Temperature [ ( )] 2(6.6) 0.3(1) 0.5(1.6) 7(23) 1.5(4.9) 1(3.3) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 m 2 ft. 6.6 1 3.3 0 0 22(72) 26(79) 14(57) 2 m ft. 6.6 1 3.3 0 0 24(75) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.
PERFORMANCE DATA Air Flow and Temperature Distribution Graphs LSN303HLV, continued. Heating Air Velocity [m/s (ft./s)] 0.3(1) Temperature [ ( )] 1.5(4.9) 0.5(1.6) 2(6.6) 7(23) 1(3.3) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 m 2 ft. 6.6 1 3.3 0 0 m ft. 6.6 1 3.3 0 0 40(104) 2 34(93) 28(82) 32(90) 30(86) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 Side View ) Air Velocity [m/s (ft./s)] Air Velocity [m/s (ft./s)] m ft. 5 16.4 0.3(1) 4 13.1 1(3.
PERFORMANCE DATA Air Flow and Temperature Distribution Graphs LSN363HLV Cooling Single Zone Wall Mounted Extended Piping Engineering Manual Air Velocity [m/s (ft./s)] 0.3(1) 0.5(1.6) Temperature [ ( )] 1(3.3) 6.5(21.3) 2 m ft. 6.6 1 3.3 0 0 2(6.6) 1.5(4.9) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 22(72) 26(79) 14(57) 2 m ft. 6.6 1 3.3 0 0 24(75) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.
PERFORMANCE DATA Air Flow and Temperature Distribution Graphs LSN363HLV, continued. Heating Air Velocity [m/s (ft./s)] Temperature [ ( )] 7(23) 0.3(1) 2(6.6) 0.5(1.6) 1.5(4.9) 1(3.3) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 m 2 ft. 6.6 1 3.3 0 0 m 28(82) 40(104) 2 ft. 6.6 1 3.3 0 0 34(93) 30(86) 32(90) m 10 8 6 4 2 0 ft. 32.8 26.2 19.7 13.1 6.6 0 Side View ) Air Velocity [m/s (ft./s)] Air Velocity [m/s (ft./s)] m ft. 5 16.4 0.3(1) 4 13.1 0.5(1.
APPLICATION GUIDELINES “Equipment Selection Procedure” on page 39 “Building Ventilation Design Guide” on page 40 “Placement Considerations” on page 42
EQUIPMENT SELECTION PROCEDURE Cooling / Heating Correction Factors For Single Zone Wall Mounted Extended Piping 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 the corresponding cooling or heating capacity correction factors as shown in the table below.
BUILDING VENTILATION DESIGN GUIDE Building Ventilation Design Guide Single Zone Wall Mounted Extended Piping Engineering Manual ASHRAE 62.1 and local codes specify the minimum volume of outdoor air 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. The three methods of accomplishing this with single zone systems are summarized here.
BUILDING VENTILATION DESIGN GUIDE Method 2: Unconditioned Outdoor Air (Non-Ducted, Natural Ventilation) Natural ventilation devices, such as operable windows or louvers may be used to ventilate the building when local code permits. The open area of a window or the free area of a louver must meet the minimum percentage of the net occupied floor area. Advantages • Occupants control the volume of the ventilation air manually.
PLACEMENT CONSIDERATIONS Selecting the Best Location DANGER Single Zone Wall Mounted Extended Piping Engineering Manual To avoid the possibility of fire, do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. Failure to do so will cause serious bodily injury or death. Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it.
PLACEMENT CONSIDERATIONS Indoor Unit Clearance/Outdoor Unit Installation Indoor Unit Best Location Figure 9: Indoor Unit Clearance Requirements. Follow recommended best practices when choosing an indoor location for the single zone indoor unit. • Use a metal detector to locate studs in the walls. Anchor unit following stud location, to prevent damage to the wall. • Clearance gap between any wall or enclosure and the left or right side of the unit must be greater than 4 inches.
PLACEMENT CONSIDERATIONS Outdoor Unit Installation Single Zone Wall Mounted Extended Piping Engineering Manual Minimum Clearance Requirements for Single Zone Extended Piping Systems 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.
REFRIGERANT PIPING DESIGN AND BEST LAYOUT PRACTICES “Refrigerant Piping Design” on page 46 “Installation & Best Layout Practices” on page 48 “Electrical Connections” on page 53
REFRIGERANT PIPING DESIGN Design Guideline Summary Device Connection Limitations Single Zone Wall Mounted Extended Piping Engineering Manual Single zone systems consist of one outdoor unit and one indoor unit. One of the most critical elements of a single zone system is the refrigerant piping. Table below lists pipe length limits that must be followed in the design of a Single Zone Wall Mounted Extended Piping refrigerant pipe system. Refer to figure below for maximum length and elevation of piping.
REFRIGERANT PIPING DESIGN Selecting Field-Supplied Copper Tubing 1 Fluid Temperature °F 75° 80° 85° 90° 0.09 0.17 0.26 0.34 0.43 0.51 0.60 0.68 0.77 0.85 1.02 1.19 1.36 1.53 0.09 0.18 0.27 0.36 0.45 0.54 0.63 0.72 0.81 0.90 1.08 1.26 1.44 1.62 0.10 0.19 0.29 0.38 0.48 0.57 0.67 0.76 0.86 0.95 1.14 1.33 1.52 1.71 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.20 1.40 1.60 1.80 95° 100° 105° 110° 115° 120° 125° 130° 0.11 0.21 0.32 0.42 0.53 0.63 0.74 0.84 0.95 1.05 1.26 1.47 1.68 1.89 0.11 0.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Definitions Physical Pipe Length: Actual length of straight segment(s) of pipe. Equivalent Pipe Length: Actual length of pipe plus equivalent lengths of long radius elbows, Y-branches, and valves. Single Zone Wall Mounted Extended Piping Engineering Manual Layout Procedure 1. Draft a one-line diagram of the proposed piping system connecting outdoor unit to indoor units. Follow the pipe limitations listed on the previous page. 2.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Pipe Supports Figure 15: Pipe Hanger Details. A properly installed pipe system should be adequately supported to avoid pipe sagging. Sagging pipes become oil traps that lead to equipment malfunction. A properly installed pipe system will have sufficient supports to avoid pipes from sagging during the life of the system. As necessary, place supports closer for segments where potential sagging could occur.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Pipe Sleeves at Penetrations Single Zone Wall Mounted Extended Piping Engineering Manual LG requires that all pipe penetrations through walls, floors, and pipes buried underground be properly insulated and routed through an appropriate wall sleeve of sufficient size to prevent compression of refrigerant pipe insulation and free movement of the pipe within the sleeve.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Single Zone Extended Piping Outdoor Unit Connections Figure 20: Outdoor Unit Connection Cover Removal 1. Remove the tubing cover from the unit by loosening the fastening screws. 2. Align the center of the refrigerant pipe and corresponding connection. 3. Place a couple of drops of refrigerant oil on the opening rim of the flare before assembling. Do not add any contaminants. Tighten the flare nut initially by hand. 4.
INSTALLATION & LAYOUT BEST PRACTICES Refrigerant Piping System Layout Refrigerant Piping / Brazing Practices Single Zone Wall Mounted Extended Piping Engineering Manual It is imperative to keep the piping system free of contaminants and debris such as copper burrs, slag, or carbon dust during installation. All joints are brazed in the field. Single Zone Wall Mounted Premier refrigeration Figure 23: Refrigerant Pipe Brazing.
ELECTRICAL CONNECTIONS Outdoor Electrical Connection • Separately wire the high and low voltage lines. There is a risk of electric shock, physical injury, or death. • Use heat-proof electrical wire capable of withstanding temperatures up to 167°F to avoid wiring malfunction and electrical shock, which may cause physical injury or death. • Ensure you connect the wire firmly. Loose wiring may cause unit malfunction, the wires to burnout or the terminal to overheat and catch fire.
TECHNICAL DATA “Mechanical Specifications” on page 55 “Acronyms” on page 56
MECHANICAL SPECIFICATIONS General Temperature Ranges Outdoor Unit Operating ranges for outdoor units of 14°F to 118°F DB for cooling and -4°F to 65°F WB for heating. Indoor Unit Operating ranges for indoor units of 53°F to 75°F WB for cooling and 60°F to 86°F DB for heating. Installing an optional Low Ambient Wind Baffle Kit will allow operation down to 0°F in cooling mode for all single zone systems. Casing / Frame Outdoor unit is constructed with pre-coated metal (PCM).
ACRONYMS Single Zone Wall Mounted Extended Piping Engineering Manual Table 28: Table of Acronyms.
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