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Colleen WilliamsSep 12, 2025
How to troubleshoot motor electrical trouble in McQuay Heat Pump?
- MMr. Adam BarnesSep 12, 2025
Check the motor for opens, short circuits, or burnout.
How to troubleshoot motor electrical trouble in McQuay Heat Pump?
Check the motor for opens, short circuits, or burnout.
How to fix loose wiring in McQuay Heat Pump?
Check all wire junctions and tighten all terminal screws.
General| Model | ALP-055C |
|---|---|
| Category | Heat Pump |
| Cooling Capacity | 5.5 kW |
| Heating Capacity | 6.0 kW |
| Refrigerant | R410A |
| Sound Pressure Level (Indoor) | 42 dB(A) |
| Sound Pressure Level (Outdoor) | 52 dB(A) |
| Operating Temperature Range (Heating) | -7-24°C |
| Power Supply | 220-240V/50Hz |
Details recommended sizing for suction and liquid lines based on pressure drop.
Details the step-by-step process for charging the unit with refrigerant.
Outlines wiring compliance, materials, and specifications for unit installation.
Decision table to help select the correct power schematic drawing based on unit configuration.
Decision table to select the correct control and safety schematic drawing.
Decision table to select the correct thermostat control schematic drawing.
Detailed steps for pre-startup, initial startup, temporary, and extended shutdowns.
Description, function, and testing procedure for the oil pressure safety control.
Description, function, and testing procedure for the high pressure control.
Description, function, and testing procedure for the low pressure control.
Details pressure controls (HP, LP, Oil, Fantrol) and thermostats (Master, Satellite).
Lists causes and corrective steps for compressors that won't run, are noisy, or vibrate.
Troubleshooting high/low discharge and suction pressures, and noncondensables.
Addresses compressor loading/unloading problems and oil pressure loss.
Causes and corrective steps for motor overloads, blown fuses, and thermal protector trips.