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Frigidaire Q4SE Series User's Manual & Installation Instructions

Two stage r-410a single package heat pump
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Q4Se SeRieS
uSeR'S manual / inSTallaTion inSTRucTionS
Two STage R-410a Single Package HeaT PumP
Premium Model Shown
Please read this information thoroughly and become familiar with the capabilities and
use of your appliance before attempting to operate or maintain this unit. keep this
literature where you have easy access to it in the future. if a problem occurs, check the
instructions and follow recommendations given. if these suggestions don't eliminate
your problem, call your servicing contractor.
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.
imPoRTanT
Do noT DeSTRoY. PleaSe ReaD caReFullY anD
keeP in a SaFe Place FoR FuTuRe ReFeRence.
14 SeeR

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  Summary of Contents for Frigidaire Q4SE Series

  • Page 1 Q4Se SeRieS 14 SeeR uSeR’S manual / inSTallaTion inSTRucTionS Two STage R-410a Single Package HeaT PumP Premium Model Shown imPoRTanT Please read this information thoroughly and become familiar with the capabilities and use of your appliance before attempting to operate or maintain this unit. keep this literature where you have easy access to it in the future.
  • Page 2: Table Of Contents

    uSeR inFoRmaTion Operating the Heat Pump for Automatic important Safety information ........3 Cooling and Heating ..........4 about the Heat Pump ..........3 Oper. the Indoor Blower Continuously .......4 operating instructions ..........3 Shutting the Heat Pump Off ........4 Cooling Operation .............3 System maintenance ..........4 Heating Operation .............3 Regular Cleaning............4 Emergency Heat............3...
  • Page 3: Important Safety Information

    uSeR inFoRmaTion imPoRTanT SaFeTY inFoRmaTion oPeRaTing inSTRucTionS Safety markings are used frequently throughout this Please refer to the thermostat manufacturer’s User manual manual to designate a degree or level of seriousness and for detailed programming instructions. should not be ignored. waRning indicates a potentially hazardous situation that if not avoided, could result in cooling operation personal injury or death.
  • Page 4: Operating The Heat Pump For Automatic Cooling And Heating

    uSeR inFoRmaTion At the beginning of the defrost cycle, both the outdoor HeaT PumP mainTenance condenser fan and compressor will turn off. After approximately 30 seconds, the compressor will turn on cauTion: and begin to heat the outdoor coil causing the ice and snow to melt.
  • 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

    • Electrical power supplied to the unit must be adequate geneRal inFoRmaTion for proper operation of the equipment. The system This single package heat pump has been designed and must be wired and provided with circuit protection in tested for capacity and efficiency in accordance with A.R.I. accordance with local building codes.
  • Page 7: Air Filter Requirements

    • Duct lining must be UL classified batts or blankets with HeaT PumP inSTallaTion a fire hazard classification of FHC-25/50 or less. Packaging Removal • Fiber duct work may be used in place of internal duct Remove the shipping carton and User’s Manual from the liners if the fiber duct work is in accordance with the equipment.
  • Page 8: Ground Level

    ground level elecTRical wiRing Ground level installations must be located according to local building codes or ordinances and these requirements: waRning: • Clearances must be in accordance with those shown in Figure 2 (page 6). Shut off all electrical power to the unit before •...
  • Page 9: Grounding

    for connecting the supply wires to the unit. Use of rain Table 4 (page 10) lists the basic airflow values versus the tight conduit is recommended. airflow selector switch settings and the range of basic • See the unit wiring label for proper high and low voltage air flow settings recommended for each nominal system wiring.
  • Page 10 coPPeR wiRe SiZe — awg basic air-Flow Setting (1% Voltage Drop) SwiTcH nominal Supply wire length-Feet Supply circuit ampacity 1/2 HP motor 1035 1050 1150 1155 Wire Size based on N.E.C. for 60° type copper conductors. 1265 SwiTcH nominal Table 1. copper wire Size Switch number nominal 1080...
  • Page 11: Demand Defrost Control

    humidistat. If using this profile, the blower will run at minimum Time Terminate 30 second Jumper 75% airflow for the first 10 minutes of each cooling between Defrosts Temperature compressor Position cycle.The basic cooling/heat-pump speed should be (min) (° F) Delay Function selected at or near the top of the range for that nominal capacity.
  • Page 12: Dc Sol Connection

    until the condition returns to normal or if 24 VAC power is removed from the module. See Table 8 (pages 22 - 23) for flash code identification or Table 9 (page 24) for module wiring troubleshooting. POWER LED (Green) LED Description •...
  • Page 13: Optional Humidistat

    optional Humidistat ambient Sensor mounting The optional humidistat may be installed in the return air For optimum performance of the heat pump system, the duct to provide excellent humidity control when needed ambient sensor must be mounted on the outside of the and maximum system capacity and energy efficiency unit.
  • Page 14: Thermostat Connections

    Thermostat connections STaRT uP & aDJuSTmenTS The Q4SE heat pump requires a 2-stage heat pump Pre-Start check list √ Verify the unit is level and allows condensate to drain. thermostat that must operate in conjunction with installed √ Verify the outdoor coil and top of the unit are free from accessories.
  • Page 15: System Heating

    System Heating 5. If the pressure measured in step 1 is less than the If the unit has been equipped with optional electric heater required liquid refrigerant pressure determined in kits, set the thermostat's system mode to EM HEAT and step 4, then there is too little charge in the system.
  • Page 16: Figures & Tables

    FiguReS & TableS 24 9/10 3/4" NPT Female Drain Connector DOWNFLOW SUPPLY DUCT OPENING 47 1/2 13 1/2 13 1/2 13 3/10 23 1/2 DOWNFLOW RETURN DUCT OPENING Top View 1 4/5 1 3/4 Ø Power Entry (Capped) HORIZONTAL 1 1/4 Ø Power Entry SUPPLY DUCT CONDENSING OPENING...
  • Page 17: Electrical Information

    elecTRical inFoRmaTion Optional Outdoor Thermostat Terminal Strip Accessory Heat Plug Brown Orange Indoor T-Stat Sub-Base Demand Defrost Board Typical wiring (Field Supplied) for 2-Stage cool, 1 Stage electric Heat Indoor Terminal T-Stat Strip Sub-Base Accessory Heat Plug Brown Orange Optional Outdoor Demand Defrost Board Thermostat Typical wiring (Field Supplied) for 2-Stage cool, 2-Stage electric Heat with an optional outdoor Thermostat...
  • Page 18 Figure 11. Two Stage cool, Two Stage Heat...
  • Page 19 TERMINAL STRIP TO 208/230 VAC POWER SUPPLY Figure 12. Two Stage cool, Two Stage Heat with optional comfort alert...
  • Page 20: Cooling Charging Charts

    cooling cHaRging cHaRTS - 14 SeeR H.P. Q4SE-X24 Charging Chart - Cooling Remove refrigerant when above curve Add refrigerant when below curve Liquid Temperature (° F) Figure 13. charging chart for 2 Ton units Q4SE-X36 Charging Chart - Cooling Remove refrigerant when above curve Add refrigerant when below curve Liquid Temperature (°...
  • Page 21 cooling cHaRging cHaRTS - 14 SeeR H.P. (conTinueD) Q4SE-X48 Charging Chart - Cooling Remove refrigerant when above curve Add refrigerant when below curve Liquid Temperature (° F) Figure 15. charging chart for 4 Ton units Q4SE-X60 Charging Chart - Cooling Remove refrigerant when above curve Add refrigerant when below curve Liquid Temperature (°...
  • Page 22: Troubleshooting

    TRoubleSHooTing Status Status leD Description Status leD Troubleshooting information Green Module has power Supply voltage is present at module terminals “POWER” • Compressor protector is open • Check for high head pressure • Check compressor supply voltage Thermostat demand signal Y •...
  • Page 23 Status leD Status leD Description Status leD Troubleshooting information • Thermostat demand signal is intermittent Yellow • Low line voltage (contact utility if voltage at disconnect is low) “ALERT” Short Cycling / Compressor is • Excessive liquid refrigerant in compressor Flash Code running only briefly •...
  • Page 24 miswired module indication Recommended Troubleshooting action • Determine if both R & c module terminals are connected. Green LED is not on, module does not • Verify voltage is present at module’s R & c terminals. power up • Determine if R & Y terminals are wired in reverse. Green LED intermittent, module powers •...

This manual is also suitable for:

Q4se-x24Q4se-x36Q4se-x48Q4se-x60