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 WARNING:

The information listed below must be followed 

during the installation, service, and operation 

of this unit. Unqualified individuals should 

not attempt to interpret these instructions or 

install this equipment. 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) 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.

• Installation of this equipment will require the use of 

refrigerant line-sets with quick connect couplings. Use 

only Nortek approved couplings or line-sets for these 

connections.

•  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.

•  When refrigerant tubing and electrical wiring penetrates a 

structures envelope, the openings should be made to be 

suitably water-tight after their installation.

•  This unit is designed for outdoor installations only and 

should be positioned as shown on 

page 3

.

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:

Shut off all electrical power to the unit before 

performing any maintenance or service on the 

system. Failure to comply may result in 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

 WARNING:

*SH3QE4M Split System Heat Pumps are 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.

 CAUTION:

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

any other refrigerant in this unit. Use of another 

refrigerant will damage the unit.

Summary of Contents for 1RP24K Series

Page 1: ...mer s package for future reference DO NOT DESTROY PLEASE READ CAREFULLY KEEP IN A SAFE PLACE FOR FUTURE REFERENCE IMPORTANT SAFETY INFORMATION 2 HEAT PUMP INSTALLATION 3 General Information 3 Before You Install this Unit 3 Packaging Removal 3 Locating the Heat Pump 3 Clearance Requirements 3 Ground Level 3 Roof Mount 3 Accessory Mounting Kits 3 INSTALLATION VERIFICATION OF THE SYSTEMS EXPANSION DE...

Page 2: ... the instructions provided with the equipment priortoperformingtheinstallationandoperationalcheckout of the equipment When refrigerant tubing and electrical wiring penetrates a structures envelope the openings should be made to be suitably water tight after their installation This unit is designed for outdoor installations only and should be positioned as shown on page 3 IMPORTANT SAFETY INFORMATI...

Page 3: ...ine the best location for mounting the outdoor unit Sufficient clearance for unobstructed airflow through the outdoor coil must be maintained in order to achieve rated performance See Figure 1 for minimum clearances to obstructions Overhead obstructions Figure 1 poorly ventilated areas and areas subject to accumulation of debris should be avoided The unit should not be placed under roofing or othe...

Page 4: ...rs and connect them in accordance with the following 1 Inspect the outside of the couplings and ensure that they are free of any dirt or debris Clean if necessary 2 Removetheprotectivecapsandplugsfromthecouplingsto bejoined Inspecttheinteriorofthecoupling Ifnecessary clean the interior of the coupling with a clean soft lint free rag or cloth Ensure that o ring is in place and that the threads are ...

Page 5: ... the refrigerant system to air to prevent accumulation of moisture and other contaminants CAUTION When connecting refrigerant line sets together it is highly recommended that dry nitrogen be flowing through the joints during brazing to prevent internal oxidation and scaling Copper oxides internal to the system can damage the compressors bearings and seals block small orificesandmicrochannelsorothe...

Page 6: ...n device and refrigerant charging procedures for proper and efficient system operation Therefrigerantchargecanbecheckedandadjustedthrough the service ports provided external to the outdoor unit Use only gage line sets which have a Schrader depression device present to actuate the valve An automatic high pressure switch is factory installed installed in these units and is located on the discharge l...

Page 7: ... outdoor unit field wiring interfaces Figure 7 page 12 and Figure 8 page 13 Make all electrical connections in accordance with all applicable codes and ordinances Overcurrent protection must be provided at the branch circuit distribution panel and sized as shown on the unit rating label and according to applicable local codes See the unit rating plate for minimum circuit ampacity MCA and maximum o...

Page 8: ...nepressureis530psigorgreater thentheHeatPump Mild Weather Control Kit is required to be installed on the system Alternately the control system could be configured to utilize the emergency or auxiliary heating means in order to maintain reliable system operation Air Circulation Indoor Blower 1 Set the thermostat system mode on OFF and the fan mode to ON 2 Verify the blower runs continuously Check t...

Page 9: ...then REMOVE refrigerant If your measured superheat at the suction valve isGREATERTHANtherecommendedsuperheat value in the table then ADD refrigerant For TXV systems If your measured subcooling at the liquid valve is LESSTHANtherecommendedsubcoolingvalue in the table then ADD refrigerant If your measured subcooling at the liquid valve is GREATER THAN the recommended subcooling value in the table th...

Page 10: ...iquid valve is LESSTHANtherecommendedsubcoolingvalue in the table then ADD refrigerant If your measured subcooling at the liquid valve is GREATER THAN the recommended subcooling value in the table then REMOVE refrigerant If the outdoor temperature is below 35 degrees F After completing the refrigerant line connections leak checking the system and evacuating the indoor section and all line connecti...

Page 11: ...d Figure 6 for panel installation Inspect the electrical connections for tightness at the beginning of each heating and cooling season Service as necessary Do not attempt to add additional oil or grease to motors unequipped with oil tubes or grease fittings Most outdoor unit motors are manufactured with sealed permanently lubricated bearings that are designed for the life of the equipment without ...

Page 12: ...s that exceed 150 volts to ground 4 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 instructions for control circuit and optional relay transformer kits 7 Caution The Low Voltage wiring shall NOT be grounded to this unit 1 Couper le courant avant d...

Page 13: ...ound 4 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 instructions for control circuit and optional relay transformer kits 7 Caution The Low Voltage wiring shall NOT be grounded to this unit 1 Couper le courant avant de faire letretien 2 Employez ...

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Page 16: ...allon MO Nortek Global HVAC LLC 2022 All Rights Reserved REPLACEMENT PARTS Replacement parts are available through your distributor Please have the complete model and serial number of the unit when ordering replacement parts ELECTRICAL Capacitors Temperature Limit Switches Compressors Thermostats Contactors Time Delay Relays Pressure Switches Transformers Relays MOTORS Blower Motor Fan Motor COMPO...

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