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General| Brand | Haier |
|---|---|
| Model | 1U15AP2VHA |
| Category | Air Conditioner |
| Language | English |
General safety rules and warnings for installation and operation.
Overview of the ductless split heat pump system features and design.
Explains the basic principles of how the heat pump system functions.
Overview and visual identification of the outdoor unit's main parts.
Detailed information on the outdoor control board PCBs and connectors.
Descriptions of Terminal Block, Compressor, Fan Motor, and Reactor.
Details on Discharge, Defrost, Ambient, and Suction line sensors.
Information on 4-Way Valve, EEV, Accumulator, Filters, and Base Pan Heater.
Configuration settings for the outdoor unit's DIP switches.
Overview and visual identification of the indoor unit's main parts.
Detailed information on the indoor control board and its connectors.
Details on Terminal Block, Display, Ambient, and Coil temperature sensors.
Information on Louver Motor, Fan Motor, and Emergency Button.
Configuration settings for the indoor unit's DIP switches.
How the system powers up and operates in cooling mode.
Details on system operation during heating mode.
Operation modes for Auto (switching) and Dry (dehumidification).
How defrost cycles work and system protection mechanisms.
Summary of indoor unit error codes and general malfunctions.
Troubleshooting steps for outdoor DC fan motor failures.
IPM Protection and Compressor Overcurrent error codes.
Communication faults (IPM/PCB) and power supply voltage issues.
Overheat protection for discharge temp and Indoor/Outdoor comm faults.
Synchronism detection issues and indoor unit overload in heating mode.
Procedures for checking outdoor unit components' resistance and function.
Procedures for checking indoor unit components' resistance and function.
Tips for optimizing performance and cleaning the unit.
Common issues like restart delays, noise, odors, and poor cooling.
Wiring diagrams and schematics for the outdoor control board.
Wiring diagrams and schematics for the indoor control board.
Schematic diagram for the module control board.
Resistance values for room and pipe sensors at various temperatures.
Resistance values for ambient, defrost, and pipe sensors at various temperatures.
Resistance values for discharge sensors at various temperatures.
