Nortek SH1QE4M1SP-24K Installation Instructions Manual Download Page 2

2

IMPORTANT SAFETY INFORMATION

INSTALLER: Please read all instructions before servicing 

this equipment. Pay attention to all safety warnings and 

any other special notes highlighted in the manual. Safety 

markings are used frequently throughout this manual to 

designate a degree or level of seriousness and should not 

be ignored. 

WARNING indicates a potentially hazardous 

situation that if not avoided, could result in personal injury or 

death. 

CAUTION indicates a potentially hazardous situation 

that if not avoided, may result in minor or moderate injury 

or property damage.

 WARNING:

ELECTRICAL SHOCK OR FIRE HAZARD

To avoid risk of 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.
Label all wires prior to disconnection when servicing 

the unit. Wiring errors can cause improper and 

dangerous operation

 WARNING:

This split system heat pumps is shipped charged 

with R410A refrigerant and ready for installation. 

If repairs make it necessary for evacuation and 

charging, it should only be attempted by qualified 

trained personnel thoroughly familiar with this 

equipment. Under no circumstances should 

the owner attempt to install and/or service this 

equipment. Failure to comply with this warning 

could result in property damage, personal injury, 

or death.

 WARNING:

Unless noted otherwise in these instructions, 

only factory authorized parts or accessory 

kits may be used with this product. Improper 

installation, service, adjustment, or maintenance 

may cause explosion, fire, electrical shock or 

other hazardous conditions which may result in 

personal injury or property damage.

 CAUTION:

This unit uses R-410A refrigerant. DO NOT use 

any other refrigerant in this unit. Use of another 

refrigerant may damage the unit.

 WARNING:

The information listed below and the next page 

should be followed during the installation, 

service, and operation of this product. Failure 

to follow safety recommendations could result 

in possible damage to the equipment, serious 

personal injury or death.

•  The installer must comply with all local codes and 

regulations which govern the installation of this type of 

equipment. Local codes and regulations take precedence 

over any recommendations contained in these instructions. 

Consult local building codes and the National Electrical 

Code (ANSI CI) for special installation requirements.

•  All electrical wiring must be completed in accordance with 

local, state and national codes and regulations and with 

the National Electric Code (ANSI/NFPA 70) or in Canada 

the Canadian Electric Code Part 1 CSA C.22.1.

•  This equipment contains liquid and gaseous refrigerant 

under high pressure. 

DO NOT USE ANY PORTION OF 

THE CHARGE FOR PURGING OR LEAK TESTING.

Installation or servicing should only be performed by 

qualified trained personnel thoroughly familiar with this 

type equipment.

•  Fully annealed, refrigerant grade copper tubing should be 

used when installing the system. Refrigerant suction line 

tubing should be fully insulated.

•  Installation of equipment may require brazing operations. 

Installer must comply with safety codes and wear 

appropriate safety equipment (safety glasses, work gloves, 

fire extinguisher, etc.) when performing brazing operations.

•  Follow all precautions in the literature, on tags, and on 

labels provided with the equipment. Read and thoroughly 

understand the instructions provided with the equipment 

prior to performing the installation and operational checkout 

of the equipment.

•  This unit is designed for outdoor installations only and 

should be positioned as shown on 

page 3

.

•  Use caution when handling this appliance or removing 

components. Personal injury can occur from sharp metal 

edges present in all sheet metal constructed equipment.

Summary of Contents for SH1QE4M1SP-24K

Page 1: ...FE PLACE FOR FUTURE REFERENCE INSTALLATION INSTRUCTIONS HEAT PUMP MAINTENANCE 7 Panel Removal 7 Panel Installation 7 REFRIGERANT CHARGING 8 Charging the Unit in AC Mode 8 Charging Charts Application N...

Page 2: ...er refrigerant may damage the unit WARNING The information listed below and the next page should be followed during the installation service and operation of this product Failure to follow safety reco...

Page 3: ...h the carrier Please consult your dealer for maintenance information and availability of maintenance contracts Please read all instructions before installing the unit Locating the Heat Pump Survey the...

Page 4: ...ling union nut to the bulkhead then tighten an additional 1 6 turn See Table 1 for torque values Repeat for all couplings ELECTRICAL WIRING WARNING ELECTRICAL SHOCK OR FIRE HAZARD To avoid risk of ele...

Page 5: ...Electrical Code Use the grounding lug provided in the control box for grounding the unit Thermostat Low Voltage Connections Thermostat connections should be made in accordance with the instructions su...

Page 6: ...nected to the correct leads on the low voltage terminal strip Verify that the power supply branch circuit overcurrent protection is sized properly Verify that the thermostat is wired correctly Start U...

Page 7: ...lectrical connections for tightness at the beginning of each heating and cooling season Service as necessary CAUTION The unit should never be operated without a filterinthereturnairsystem Replacedispo...

Page 8: ...ing delay before the outdoor unit will energize Charging the Unit in AC Mode With Outdoor Temperatures Above 65 F 1 With the system operating at steady state measure the liquid refrigerant pressure in...

Page 9: ...move refrigerant if above curve Add refrigerant if below curve SH1QE4M1SP24K CHARGING CHART COOLING 90 95 100 105 110 115 120 125 130 Liquid Temperature F Liquid Pressure psig 75 80 85 200 220 240 260...

Page 10: ...elow curve SH1QE4M1SP42K CHARGING CHART COOLING Figure 8 Charging Chart for 3 5 Ton Models TXV Matches 90 95 100 105 110 115 120 125 130 Liquid Temperature F Liquid Pressure psig 75 80 85 200 220 240...

Page 11: ...Pressure psig 75 80 85 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 135 Remove refrigerant if above curve Add refrigerant if below curve SH1QE4M1SP48K CHARGING C...

Page 12: ...shown and the ambient temperature is above 50 F then a more accurate way to inspect the system for proper charge is with the cooling mode charging charts Switch the unit into cooling mode and allow i...

Page 13: ...88 141 112 301 312 153 128 325 336 164 36 216 227 108 51 235 245 115 66 253 263 123 81 271 282 130 96 284 295 139 113 308 319 148 129 332 343 158 37 223 234 106 52 240 251 113 67 258 268 121 82 275 28...

Page 14: ...311 120 98 340 347 125 114 372 379 129 129 405 412 134 Table 9 Verification Table for 3 5 Ton Models Table 10 Verification Table for 4 Ton Models OUTDOOR TEMPERATURE DEG F 0 10 20 30 40 50 60 SUC PRE...

Page 15: ...For replacement wires use conductors suitable for 105 C 5 For ampacities and overcurrent protection see unit rating plate 6 Connect to 24 vac 40va class 2 circuit See furnace air handler installation...

Page 16: ...hermostat level YES NO Is the heat anticipator setting correct If Applicable YES NO REFRIGERATION SYSTEM Wasunitgiven24hrwarmupperiod for crankcase heaters YES NO Stage 1 Liquid Pressure high side Sta...

Reviews: