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SPLIT SYSTEM HEAT PUMP
INSTALLATION INSTRUCTIONS
*SH1QE4M1SP - 24K, 30K, 36K, 42K, & 48K (2, 2.5, 3, 3.5, & 4 TON) SERIES
FOR MANUFACTURED HOUSING INSTALLATIONS
IMPORTANT SAFETY INFORMATION ............................ 2
HEAT PUMP INSTALLATION .......................................... 3
General Information ......................................................... 3
Before You Install the Heat Pump .................................... 3
Locating the Heat Pump .................................................. 3
Packaging Removal ......................................................... 3
Ground Level ................................................................... 3
Rooftop ............................................................................ 3
Indoor & Outdoor Unit ...................................................... 4
ELECTRICAL WIRING ..................................................... 4
Pre-Electrical Checklist .................................................... 4
Line Voltage ..................................................................... 4
Grounding ........................................................................ 5
Thermostat / Low Voltage Connections ........................... 5
START UP & ADJUSTMENTS ......................................... 6
Pre-Start Check List ......................................................... 6
Start-Up Procedures ........................................................ 6
Operating Temperatures ............................................... 6
Air Circulation - Indoor Blower ....................................... 6
Short Cycle Protection ................................................... 6
System Cooling ............................................................. 6
System Heating ............................................................. 6
Defrost Control Board Test Pins ...................................... 6
It is your responsibility to know this product better than your customer. This includes being able to install the product
according to strict safety guidelines and instructing the customer on how to operate and maintain the equipment for
the life of the product. Safety should always be the deciding factor when installing this product and using common
sense plays an important role as well. Pay attention to all safety warnings and any other special notes highlighted
in the manual. Improper installation of the furnace or failure to follow safety warnings could result in serious injury,
death, or property damage.
These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this
appliance. Some local codes require licensed installation/service personnel for this type of equipment. Please read all
instructions carefully before starting the installation. Return these instructions to the customer's package for future
reference.
DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
HEAT PUMP MAINTENANCE .......................................... 7
Panel Removal ................................................................. 7
Panel Installation .............................................................. 7
REFRIGERANT CHARGING ............................................ 8
Charging the Unit in AC Mode ......................................... 8
Charging Charts & Application Notes .............................. 8
Figure 5. Charging Chart for 2 Ton Models ................... 9
Figure 6. Charging Chart for 2.5 Ton Models ................ 9
Figure 7. Charging Chart for 3 Ton Models ................... 10
Figure 8. Charging Chart for 3.5 Ton Models ................ 10
Figure 9. Charging Chart for 4 Ton Models ................... 11
Table 6. Verification Table for 2 Ton Models ................. 13
Table 7. Verification Table for 2.5 Ton Models .............. 13
Table 8. Verification Table for 3 Ton Models ................. 13
Table 9. Verification Table for 3.5 Ton Models .............. 14
Table 10. Verification Table for 4 Ton Models ............... 14
WIRING DIAGRAM ........................................................... 15
Figure 10. W.D. for 2 - 4 Ton Models ............................ 15
INSTALLATION CHECKLIST ........................................... 16
REPLACEMENT PARTS .................................................. 16
IMPORTANT
ATTENTION INSTALLERS:
14 SEER, SINGLE PHASE
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Summary of Contents for Nortek SH1QE4M1SP-24K
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Page 1: Table Of Contents
SPLIT SYSTEM HEAT PUMP 14 SEER, SINGLE PHASE INSTALLATION INSTRUCTIONS *SH1QE4M1SP - 24K, 30K, 36K, 42K, & 48K (2, 2.5, 3, 3.5, & 4 TON) SERIES FOR MANUFACTURED HOUSING INSTALLATIONS IMPORTANT SAFETY INFORMATION ......2 HEAT PUMP MAINTENANCE .......... 7 Panel Removal .............. -
Page 2: Important Safety Information
IMPORTANT SAFETY INFORMATION CAUTION: INSTALLER: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and This unit uses R-410A refrigerant. DO NOT use any other special notes highlighted in the manual. Safety any other refrigerant in this unit. Use of another markings are used frequently throughout this manual to refrigerant may damage the unit. -
Page 3: Heat Pump Installation
HEAT PUMP INSTALLATION Ground Level Ground level installations should be located according to General Information local building codes or ordinances and these requirements: Split system heat pumps are designed only for outdoor rooftop • Clearances must be in accordance with those shown in or ground level installations. -
Page 4: Connecting Refrigerant Tubing Between The Indoor & Outdoor Unit
Connecting Refrigerant Tubing Between the FEMALE FEMALE Indoor & Outdoor Unit COUPLING MALE TORQUE COUPLING COUPLING SIZE COUPLING BODY CAUTION: 3/8” 10-12 Ft-Lbs 3/4” 11/16” 5/8” (10mm) (14-16 Nm) When servicing, cover or seal openings to 3/4” 35-45 Ft-Lbs minimize the exposure of the refrigerant system 1-1/8”... -
Page 5: Grounding
interfaces. Make all electrical connections in accordance COPPER WIRE SIZE — AWG with all applicable codes and ordinances. (1% VOLTAGE DROP) • Overcurrent protection must be provided at the branch circuit distribution panel and sized as shown on the unit SUPPLY SUPPLY WIRE LENGTH-FEET rating label and according to applicable local codes. -
Page 6: Start Up & Adjustments
START UP & ADJUSTMENTS System Cooling 1. Set the thermostat’s system mode to COOL and the fan Pre-Start Check List mode to AUTO. Gradually lower the thermostat temperature √ Verify the unit is level and has sufficient clearances for setpoint below room temperature and verify the outdoor unobstructed airflow. -
Page 7: Heat Pump Maintenance
HEAT PUMP MAINTENANCE WARNING: To prevent electrical shock, personal injury, or death, disconnect all electrical power to the unit before performing any maintenance or service. The unit may have more than one electrical supply. Proper maintenance is important to achieve optimum performance from the heat pump. -
Page 8: Refrigerant Charging
REFRIGERANT CHARGING Charging the Unit in AC Mode (With Outdoor Temperatures Above 65° F) WARNING: 1. With the system operating at steady-state, measure the liquid refrigerant pressure (in psig) at the outdoor unit SH1QE4M1SP split system heat pumps are service valve. 2. - Page 9 SH1QE4M1SP24K CHARGING CHART - COOLING Remove refrigerant if above curve Add refrigerant if below curve Liquid Temperature (° F) Figure 5. Charging Chart for 2 Ton Models (TXV Matches) SH1QE4M1SP30K CHARGING CHART - COOLING Remove refrigerant if above curve Add refrigerant if below curve Liquid Temperature (°...
- Page 10 SH1QE4M1SP36K CHARGING CHART - COOLING Remove refrigerant if above curve Add refrigerant if below curve Liquid Temperature (° F) Figure 7. Charging Chart for 3 Ton Models (TXV Matches) SH1QE4M1SP42K CHARGING CHART - COOLING Remove refrigerant if above curve Add refrigerant if below curve Liquid Temperature (°...
- Page 11 SH1QE4M1SP48K CHARGING CHART - COOLING Remove refrigerant if above curve Add refrigerant if below curve Liquid Temperature (° F) Figure 9. Charging Chart for 4 Ton Models (TXV Matches)
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Page 12: Heat Mode Verification Tables & Application Notes
LEGEND NOTES: Shaded boxes indicate flooded conditions. 1. All pressures are listed psig and all temperatures in °F Rated design values. The suction pressure 2. Discharge temperatures GREATER than charted values indicate an UNDERCHARGED system. will vary from design value if outdoor air 3. - Page 13 OUTDOOR TEMPERATURE (DEG. F) 37 200 207 98 52 220 228 108 67 240 248 118 83 260 268 128 99 270 278 138 117 293 301 148 135 316 324 158 38 207 214 96 53 226 234 106 68 245 253 116 84 264 272 126 100 277 285 135 118 300 308 143 136 323 331 152 39 214 221 94 54 232 239 104 69 250 257 114 85 268 275 124 101 284 292 132 119 307 315 139 137 330 338 146 40 221 228 92...
- Page 14 OUTDOOR TEMPERATURE (DEG. F) 30 210 217 119 45 234 241 123 61 258 265 128 77 281 289 132 92 298 305 142 108 330 337 156 123 363 370 171 31 217 224 117 46 240 247 121 62 262 270 126 78 285 292 130 93 305 312 139 109 337 344 152 124 370 377 165 32 224 231 115 47 246 253 119 63 267 274 124 79 289 296 128 94 312 319 136 110 344 351 147 125 377 384 158 33 231 238 113 48 252 259 117 64 272 279 122 80 292 300 126 95 319 326 133 111 351 358 143 126 384 391 152 34 238 245 111 49 257 265 115 65 277 284 120 81 296 303 124 96 326 333 130 112 358 365 138 127 391 398 146...
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Page 15: Wiring Diagram
WIRING DIAGRAM YELLOW YELLOW BLACK Figure 10. W.D. for 2 - 4 Ton Models... -
Page 16: Installation Checklist
MOTORS: Blower Motor Fan Motor COMPONENTS: Blower Assembly Fan Grille Cabinet Panels Filter/Driers Expansion Valves Specifications & illustrations subject to change without notice or incurring obligations (09/17). 10183320 O’Fallon, MO, © Nortek Global HVAC LLC 2017. All Rights Reserved. (NEW)
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