Frigidaire Q4SE Series User'S Manual & Installation Instructions Download Page 20

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cooling cHaRging cHaRTS - 14 SeeR H.P.

Q4SE-X24 Charging Chart - Cooling

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Liquid Temperature (° F)

Liquid Pressure (psig)

Add refrigerant when below curve

Remove refrigerant when above curve

Q4SE-X36 Charging Chart - Cooling

200

220

240

260

280

300

320

340

360

380

400

420

440

460

480

500

520

540

560

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600

100

105

110

115

120

125

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135

Liquid Pressure (psig)

Liquid Temperature (° F)

Add refrigerant when below curve

Remove refrigerant when above curve

Figure 14. charging chart for 3 Ton units

Figure 13. charging chart for 2 Ton units

Summary of Contents for Q4SE Series

Page 1: ...tions 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 th...

Page 2: ...14 Startup Adjustments 14 Pre Start Checklist 14 Start up Procedure 14 Air Circulation 14 Short Cycle Protection 14 System Cooling 14 System Heating 15 Refrigerant Charging 15 Charging an R 410A Unit in AC Mode 15 Charging an R 410A Unit in Heating Mode 15 Heat Pump Maintenance 15 Figures Tables 16 Figure 9 Q4SE Heat Pump Dimensions 16 Table 7 Center of Gravity Shipping Weights 16 Electrical Infor...

Page 3: ... the fan mode to AUTO See Figure 1 2 Set the temperature selector to the desired temperature level The outdoor fan compressor and blower motor will all cycle on and off to maintain the indoor temperature at the desired cooling level NOTE If the temperature level is re adjusted or the system mode is reset the fan and compressor in the outdoor unit may not start immediately A protective timer circui...

Page 4: ...s is included with the heat pump Carefully review these responsibilities with your dealer or service company The manufacturer will not be responsible for any costs found necessary to correct problems due to improper setup improper installation adjustments improper operating procedure on the part of the user etc Some specific examples of service calls which are not included in the limited warranty ...

Page 5: ...refrigerant underhighpressure Installationorservicingshouldonly beperformedbyqualifiedtrainedpersonnelthoroughly familiar with this type equipment 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 Installation of equipment may require br...

Page 6: ...use and or improper maintenance can shorten the life of the appliance and create unsafe hazards Toachieveoptimumperformanceandminimizeequipment failure it is recommended that periodic maintenance be performed on this unit The ability to properly perform maintenance on this equipment requires certain mechanical skills and tools Pre Installation Check Before you install this unit the cooling load of...

Page 7: ...al Remove the shipping carton and User s Manual from the equipment Takecarenottodamagethetubingconnections whenremovingthecarton Forrooftopinstallations remove and discard the two supports attached beneath the unit Rigging and Hoisting WARNING To avoid the risk of property damage personal injury or death it is the rigger s responsibility to ensure that whatever means are used to hoist the unit are...

Page 8: ...f the electrical box of the outdoor unit The installer should becomefamiliarwiththewiringdiagram schematicbefore making any electrical connections to the outdoor unit Line Voltage It is recommended that the line voltage to the unit be supplied from a dedicated branch circuit containing the correct fuse or circuit breaker for the unit An electrical disconnect must be located within sight of and rea...

Page 9: ...t upandshut downcharacteristics thesystemcan be optimized for energy efficiency humidity control and comfort The delay profile is selected by setting switches 7 8 See Table 3 page 10 Select Delay A or Delay B for highest energy efficiency Delay A has a two step ON delay The blower will begin operation at 31 airflow for 30 seconds The second step operation is 75 airflow for 30 seconds After the two...

Page 10: ... 0 1 0 1 5 T O N 1650 1 0 0 0 1705 0 0 1 0 1710 1 1 0 1 1800 0 1 0 0 1815 1 0 1 0 1900 1 1 0 0 1980 0 1 1 0 2090 1 1 1 0 NOTE Switch settings 0 OFF 1 ON Table 3 Delay Settings all models Delay Description Switch Number 1 2 3 4 5 6 7 8 Delay A 0 0 Delay B 0 1 No Delay 1 0 De Hum 1 1 NOTE Switch settings 0 OFF 1 ON Table 2 Minimum Electric Heat Airflow all models Nominal KW CFM Switch Number 1 2 3 4...

Page 11: ...cond compressor time delay in defrost the delay is reduced to 10 seconds in TEST mode Optional Comfort AlertTM Diagnostics Module TheComfortAlertTM DiagnosticsModuleisabreakthrough innovation for troubleshooting heat pump and air conditioning system failures The module installs easily in the electrical box of the outdoor unit near the compressor contactor By monitoring and analyzing data from the ...

Page 12: ...LED Description POWER LED Green indicates voltage is present at the power connection of the module ALERT LED Yellow communicates an abnormal system condition through a unique flash code NOTE TheALERTLEDwillflashconsecutively pause andthenrepeattheprocess Thenumberofconsecutive flashes referred to as the Flash Code correlates to a particular abnormal condition Detailed descriptions of these ALERT F...

Page 13: ...24VACthermostatshouldbeusedwhenanelectric heater kit is installed As previously noted a field installed circuit breaker kit is available as a means of electrical disconnect for the unit Install the heater kits as directed by the instructions supplied with the heater kit Follow all cautions and warnings as directed NOTE If installing a 10kw heater kit in the 2 or 3 ton capacity units the 145 limit ...

Page 14: ...nt protection is sized properly Verify that the thermostat is wired correctly The thermostat function switch should be set to OFF and the thermostat fan switch should be set to AUTO Start Up Procedure Close all electrical disconnects to energize the system Air Circulation Leave the thermostat system mode on OFF and set the fan mode to ON Blower should run continuously Check the air delivery at the...

Page 15: ...outdoor fan are not energized but that the blower and heaters are Feeltheairbeingcirculatedbytheindoorblowerandverify that it is warmer than ambient temperature Listen for any unusual noises If unusual sounds occur determine the source of the noise and correct as necessary 5 If the pressure measured in step 1 is less than the required liquid refrigerant pressure determined in step 4 then there is ...

Page 16: ...UCT OPENING 4 0 CONDENSING COIL 5 0 8 4 00 Table 7 Center of Gravity Unit Shipping Weights Model Number Q4SE PPH1SE Unit Weight Center of Gravity Height C in inches A B with base rails without base rails X24 450 28 0 25 5 39 0 35 3 X36 460 28 0 25 5 39 0 35 3 X48 570 29 5 26 0 43 0 39 3 X60 580 29 5 26 0 43 0 39 3 Side View 1 1 4 Ø Power Entry 1 3 4 Ø Power Entry Capped 22 25 Ø Control Wiring Entr...

Page 17: ...AMBIENT SENSOR COIL SENSOR TEST L R C Y O W2 IN W2 OUT COND FAN AMBIENT AMBG COILG COIL DEMAND DEFROST CONTROL BOARD M PRESS SW REV VALVE Demand Defrost Board Terminal Strip Optional Outdoor Thermostat Indoor T Stat Sub Base 1 2 3 4 5 6 7 8 9 Brown Orange Accessory Heat Plug G C L W1 R Y2 E O Y1 AMBIENT SENSOR COIL SENSOR TEST L R C Y O W2 IN W2 OUT COND FAN AMBIENT AMBG COILG COIL DEMAND DEFROST ...

Page 18: ...ncerning accessory Heat Kits and other options DEFROST BOARD OPERATION Heat Pump operates in heating mode until the combination of outdoor ambient and outdoor coil temperatures initiate a defrost cycle The outdoor coil temperature must be at or below 32 F before the defrost cycle begins There must be a minimum of 20 minutes between defrost cycles After this time temperature conditions must call fo...

Page 19: ...at Kits and other options Heat pump operates in heating mode until the combination of outdoor ambient and outdoor coil temperatures initiate a defrost cycle The outdoor coil temperature must be at or below 32 F before the defrost cycle begins There must be a minimum of 20 minutes between defrost cycles After this time temperature conditions must call for defrost continuously for 4 1 2 minutes befo...

Page 20: ...ssure psig Add refrigerant when below curve Remove refrigerant when above curve Q4SE X36 Charging Chart Cooling 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Pressure psig Liquid Temperature F Add refrigerant when below curve Remove refrigerant when above curve Figure 14 Charging Chart for 3 Ton Units Figur...

Page 21: ...Temperature F Add refrigerant when below curve Remove refrigerant when above curve Q4SE X60 Charging Chart Cooling 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 620 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Pressure psig Liquid Temperature F Add refrigerant when below curve Remove refrigerant when above curve Figure 15 Charging Chart for 4 Ton Units Figure...

Page 22: ...k for excessively low thermostat setting Check evaporator airflow coil blockages or return airfilter Check ductwork or registers for blockage Faulty metering device Check TXV bulb installation size location and contact Check if TXV fixed orifice is stuck closed or defective Condenser coil is dirty Liquid line restriction filter drier blocked if present in system Thermostat is malfunctioning Soleno...

Page 23: ... compressor protector reset time due to extreme ambient temperature Compressor windings are damaged Check compressor motor winding resistance Yellow ALERT Flash Code 6 Open Start Circuit Current only in run circuit Run capacitor has failed Open circuit in compressor start wiring or connections Check wiring and connectors between supply and the compressor S terminal Compressor start winding is dama...

Page 24: ...d to 24VAC at contactor coil Verify voltage at contactor coil falls below 0 5VAC when off ALERT Flash Code 5 6 or 7 displayed incorrectly Open Circuit Open Start Circuit or Open Run Circuit Verify the compressor run and start wires are routed through the module s current sensing holes Verify the Y terminal is connected to 24VAC at contactor coil Verify voltage at contactor coil falls below 0 5VAC ...

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Frigidaire Q4SE Series, User'S Manual & Installation Instructions

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