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*Q104SD SERIES
USER'S MANUAL / INSTALLATION INSTRUCTIONS
SINGLE PACKAGE HEAT PUMP - SINGLE PHASE - R410A
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.
IMPORTANT
ATTENTION INSTALLERS:
13.4 SEER2 / 6.7 HSPF2
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Summary of Contents for Nortek Q104SD Series
- Page 1 *Q104SD SERIES 13.4 SEER2 / 6.7 HSPF2 USER’S MANUAL / INSTALLATION INSTRUCTIONS SINGLE PACKAGE HEAT PUMP - SINGLE PHASE - R410A IMPORTANT ATTENTION INSTALLERS: 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.
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Page 2: Table Of Contents
USER INFORMATION IMPORTANT SAFETY INFORMATION ....3 Operating the Heat Pump for Automatic Cooling and Heating ............4 ABOUT THE HEAT PUMP ........3 Operating the Indoor Blower Continuously .....4 OPERATING INSTRUCTIONS .........3 Shutting the Heat Pump Off ........4 Cooling Operation ..........3 HEAT PUMP MAINTENANCE ........4 Heating Operation ..........3 Regular Cleaning............4 Emergency Heat.............3... -
Page 3: Important Safety Information
USER INFORMATION OPERATING INSTRUCTIONS IMPORTANT SAFETY INFORMATION Please refer to the thermostat manufacturer’s User manual Please read all instructions before servicing this equipment. for detailed programming instructions. Pay attention to all safety warnings and any other special notes highlighted in the manual. Safety markings are Cooling Operation used frequently throughout this manual to designate a 1. -
Page 4: Operating The Heat Pump For Automatic Cooling And Heating
USER INFORMATION HEAT PUMP MAINTENANCE melting frost to evaporate. When defrost is completed, the outdoor fan motor will start, and the compressor will turn off again. In approximately 30 seconds the compressor CAUTION: will start up again and continue normal operation. Shut off all electrical power to the unit before Operating the Heat Pump for Automatic performing any maintenance or service on the... -
Page 5: Important Safety Information
INSTALLER INFORMATION IMPORTANT SAFETY INFORMATION WARNING: Safety markings are used frequently throughout this manual to designate a degree or level of seriousness and Do not place combustible material on or against should not be ignored. WARNING indicates a potentially the unit cabinet. Do not place combustible hazardous situation that if not avoided, could result in materials, including gasoline and any other personal injury or death. -
Page 6: General Information
GENERAL INFORMATION The Q104SD series heat pump is designed only for 0" 36” For Coil Only outdoor rooftop or ground level installations. This unit has been tested for capacity and efficiency in accordance with AHRI Standards and will provide many years of safe and dependable comfort, providing it is properly installed and maintained. -
Page 7: Air Filter Requirements
• Single phase downflow applications require either a Minimum Clearances Nortek internal filter kit be used, or an air filter system Q104SD units are certified as combination heating and be installed in the return air ductwork. See Table 2 for cooling equipment for outdoor installation only. -
Page 8: Rooftop
Condensate Drain Roof Curb Figure 5. Condensate Drain Location Figure 4. Roof Top Installation ELECTRICAL WIRING • Units require horizontal roof curb and return air kit for WARNING: horizontal installations. • Ductwork should be attached directly to flanges on To avoid risk of electrical shock, personal injury, panels supplied in horizontal duct conversion kits. -
Page 9: Grounding
Safety Protection protection must be in compliance with information listed • A high-pressure switch is factory-installed and located on the outdoor unit data label. Any other wiring methods in the compressor discharge line of the unit. The switch must be acceptable to authority having jurisdiction. is designed to de-energize the system when very high •... -
Page 10: Ambient Sensor Mounting
Forced Defrost When the Following Conditions are Met: • LPS and HPS are closed • Y1 input is active • O input is either active or inactive Bolt • TEST terminals shorted for more than three seconds Compressor will start and unit will operate in DEFROST mode. -
Page 11: Start Up & Adjustments
START UP & ADJUSTMENTS 3. Allow the cooling system to operate for several minutes and then set the temperature selector above room Pre-Start Check List temperature. Verify the fan and compressor cycle off √ Verify the unit is level and allows condensate to drain. with the thermostat. -
Page 12: Charging An R-410A Unit In Ac Mode
IMPORTANT NOTES: • Return to the system when the outdoor temperature is • To achieve rated capacity and efficiency the compressor 60 degrees F or higher and follow the steps defined in must be exposed to refrigerant for at least 24 hours prior Charging an R410A Unit in AC Mode. -
Page 13: Figures & Tables
FIGURES & TABLES 24.9 .75" NPT Female Drain Connector DOWNFLOW SUPPLY DUCT OPENING Top View 47.5 13.5 13.5 13.3 23.5 DOWNFLOW RETURN DUCT OPENING HORIZONTAL SUPPLY DUCT CONDENSING OPENING HORIZONTAL COIL RETURN DUCT OPENING 13.5 Back View 16.0 13.5 16.0 13.7 12.45 1 4/5... -
Page 14: Electrical Information
Electrical Information to Blower Relay (Cooling Speed) Brown Y1- IN Orange Defrost Board W2 Out Accesory Heat W2 IN Plug Y2 IN (Not Used) L-24V Output Fault Monitor (See thermostat manual for compatibility) Indoor Unit Terminal Thermostat Block Sub-Base Typical Wiring (Field Supplied) for 1-Stage Cool, 1-Stage Electric Heat to Blower Relay (Cooling Speed) Brown Y1- IN... - Page 15 Figure 9. Wiring Diagram for 208/230V Units...
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Page 16: Charging Charts - Cooling
Charging Charts - Cooling Figure 10. Charging Chart for 2 Ton Units Figure 11. Charging Chart for 2.5 Ton Units... - Page 17 Figure 12. Charging Chart for 3 Ton Units Figure 13. Charging Chart for 3.5 Ton Units...
- Page 18 Figure 14. Charging Chart for 4 Ton Units Figure 15. Charging Chart for 5 Ton Units...
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Page 19: Airflow Data
Airflow Data EXTERNAL STATIC PRESSURE DROP - INCHES WATER COLUMN MODEL NUMBER Q104SD- Tap T1 38.4 40.3 44.4 48.9 54.5 62.0 72.5 Tap T2 32.6 34.2 36.5 39.5 44.1 48.5 53.5 60.5 X24K Tap T3* 1070 29.6 1010 31.3 9456 33.4 34.9 38.8... -
Page 20: Installation Checklist
COMPONENTS: • Blower Assembly • Fan Grille • Cabinet Panels • Filter/Driers • Expansion Valves Specifications & illustrations subject to change without notice or incurring obligations (08/22). 10414730 O’Fallon, MO, © Nortek Global HVAC LLC 2022. All Rights Reserved. (NEW)
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