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Allison Adkins DDSSep 12, 2025
How to troubleshoot motor electrical trouble in McQuay Heat Pump?
- TTheresa JacksonSep 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-100C |
|---|---|
| Category | Heat Pump |
| Cooling Capacity | 10.0 kW |
| Power Supply | 380-415V/3Ph/50Hz |
| Refrigerant | R410A |
| Weight | 85 kg |
Covers general piping design principles, ASHRAE guidelines, and line sizing.
Details recommendations for suction and liquid line sizing based on pressure drop.
Explains the process for charging the system with refrigerant.
Discusses wiring compliance, wire types, and single/multiple point power connections.
Provides tables for selecting wire sizes based on electrical data and load requirements.
Details the step-by-step process for starting the unit.
Explains the pumpdown function and its role in normal operation.
Decision table to select the correct power schematic drawing based on unit configuration.
Decision table to select the correct control and safety schematic drawings.
Decision table to select the correct thermostat control schematic drawings.
Essential checks to perform before initial unit startup for safety and performance.
Procedures for starting the unit for the first time, including checks and adjustments.
Instructions on checking and adding oil to compressor crankcases.
Explains the function, testing, and operation of the oil pressure safety control.
Details the operation and testing of the high pressure control switch.
Explains the function and testing of the low pressure control for pumpdown.
Lists possible causes and corrective steps for a compressor that will not run.