Nordyne Q4SE Series /installation User'S Manual & Installation Instructions Download Page 21 | Manualshive

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Summary of Contents for Q4SE Series /installation

Page 1: ...y 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 instruct...

Page 2: ...st Control 11 Optional Comfort Alert TM Diagnostics Module 11 24VAC Power Wiring 11 Thermostat Demand Wiring 11 L Terminal Wiring 11 DC SOL Connection 12 Interpreting the Diagnostic LED s 12 LED Descr...

Page 3: ...change 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 t...

Page 4: ...mp Off Change the t hermostat s system mode to OFF and the fan mode to AUTO See Figure 1 NOTE The system will not operate regardless of the temperature selector setting HEAT PUMP MAINTENANCE b CAUTION...

Page 5: ...s warning could result in equipment damage personal injury or death WARNING The safety information listed below must be followed during the installation service and operation of this unit Unqualified...

Page 6: ...for minimum clearances to obstructions Consideration should also be given to availability of electric power service access noise and shade Field Connections for Electrical Power Supply All wiring must...

Page 7: ...User s Manual from the equipment Take care not to damage the tubing connections when removing the carton For rooftop installations remove and discard the two supports attached beneath the unit Rigging...

Page 8: ...ll comply with the current Canadian Electrical Code CSA C22 1 and or local codes Pre Electrical Checklist Verify that the voltage frequency and phase of the supply source match the specifications on t...

Page 9: ...itch settings and the range of basic air flow settings recommended for each nominal system capacity NOTES The CFM values listed in the tables are not dependent on duct static pressure The motor automa...

Page 10: ...h settings 0 OFF 1 ON Table 3 Delay Settings all models 1 2 HP Motor 1 2 HP Motor 3 4 HP Motor CFM 72O 8OO 810 88O 9OO 945 990 1035 1050 1150 1155 1265 CFM 1080 1200 1215 1260 1320 1350 1395 1400 1485...

Page 11: ...me delay in defrost the delay is reduced to 10 seconds in TEST mode Minimum Time Terminate 30 second Jumper Between Defrosts Temperature Compressor Position mini F Delay Function 1 20 40 NO 2 20 40 YE...

Page 12: ...ED 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 The ALERT...

Page 13: ...C thermostat should be used when an electric 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...

Page 14: ...t overcurrent 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...

Page 15: ...rts in Figures 13 16 4 If the pressure measured in step 1 is greater than the required liquid refrigerant pressure determined in step 4 then there is too much charge in the system Remove refrigerant a...

Page 16: ...tr Side View f 4 C 1 13 5 1317 _11 75_ OPENING 4 0 HORIZONTAL SUPPLY DUCT HORmZONTAL OPE_IING RETURN DUCT 16 0 22 75 55 8 m _ ONDENSING COIL 0 Back View f 4 00 Figure 9 Q4SE Heat pump Dimensions Model...

Page 17: ...Wiring Field Supplied for 2 Stage Cool 1 Stage Electric Heat Indoor T Stat Sub Base o_ I I I I I Terminal Strip G C L w1 R Y2 E O Y1 F _J l Z_0 _O 33 88_ rSS_ Z 4 F lo EEl _o 3O m m s 8S_ t Z 33 m DE...

Page 18: ...installations de plus de 150V a la terre YELLOW HIGH PRESSURE LOW SWITCH PRESSURE SWITCH YELLOW BLACK BLACK ORANGEuE_OUTDO BL OR FAN MOTOR DUAL CAPACITOR DEFROST BOARD OPERATION Q eat Pump operates in...

Page 19: ...inuously for 4 1 2 minutes before a defrost cycle is initiated LEGEND FIELD WIRING LOW VOLTAGE H GH VOLTAGE 4 If any of the original wire as supplied with the furnace must be replaced it must be repla...

Page 20: ...20 200 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Temperature o F Figure 13 Charging Chart for 2 Ton Units v D _1 Q4SE X36 Charging Chart Cooling 600 580 1 I 1 560 Remove refrigerant when a...

Page 21: ...w cuwe 80 85 90 95 1O0 105 110 115 120 125 130 135 Liquid Temperature F Figure 15 Charging Chart for 4Ton Units 62O 600 58O 560 540 Q4SE X60 Charging Chart Cooling 1 l Rem ve refrigerant when ab ve cu...

Page 22: ...door blower control board Check thermostat wiring for open circuit Evaporator coil is frozen Check for low suction pressure Check for excessively low thermostat setting Check evaporator airflow coil b...

Page 23: ...ilure burned pitted oropen Check wiring and connectors between supply and compressor Check for low pilot voltage at compressor contactor coil High pressure switch is open and requires manual reset Ope...

Page 24: ...across Y C when thermostat demand signal is present If not R C are reversed wired Verify R and C terminals are supplied with 19 28VAC Verify Y terminal is connected to 24VAC at contactor coil Verify...

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