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General| Brand | Haier |
|---|---|
| Model | 1U12ES2VHA |
| Category | Air Conditioner |
| Language | English |
Important safety guidelines for installation and operation.
Overview and identification of outdoor unit components.
Overview and identification of indoor unit components.
Detailed functions and operation of remote controllers.
Explanation of system operation modes and sequences.
Step-by-step procedures for installing the air conditioner unit.
Troubleshooting common errors and diagnostic procedures.
Appendices including diagrams and sensor tables.
Important safety guidelines for installation and operation.
Overview of the ductless split air conditioner system components and function.
Detailed explanation of the system's operational theory and logic.
Critical safety warnings detailing severe consequences of non-compliance.
Overview and visual identification of outdoor unit components.
Description and connectors of the outdoor unit's main control board.
Outdoor unit terminal block and compressor details.
Function of power factor reactor and outdoor fan motor.
Explains discharge and ambient temperature sensors.
Explains defrost and suction line temperature sensors.
Function of the 4-way valve and accumulator.
Explains refrigerant filters and electronic expansion valve.
Overview and visual identification of indoor unit components.
Description and connectors of the indoor unit's control board.
Identifies connectors and switches on the indoor control board.
Explains the indoor unit terminal block and display functions.
Details the indoor ambient and piping temperature sensors.
Explains louver motor and indoor fan motor operation.
Details the emergency button for AUTO mode operation.
Detailed functions and operation of the primary remote controller.
Detailed functions and operation of the secondary remote controller.
Covers power, quiet mode, and main operational modes (Cool, Heat, Dry, Auto).
Controls temperature, fan speed, and airflow direction.
Setting timers and accessing additional features.
Sleep mode, locking, display, and reset functions.
Basic operation, modes, and turbo/quiet functions for Remote Controller 2.
Controls temperature, fan speed, and auto operation for Remote Controller 2.
Adjusting vertical/horizontal louvers and setting timers.
Sleep mode, extra functions, and temperature unit shift.
Functions for confirming, locking, display light, and resetting the remote.
System power, and operation sequence during cooling mode.
Operation sequence for heating, including cold air prevention and defrost.
Operation sequence in auto and dry (dehumidification) modes.
Details of defrost cycles and system protection mechanisms.
General overview, indoor unit actions, and communication during cooling.
Outdoor unit actions and sensor roles during cooling.
Conditions for stopping cooling and preventing freezing.
General overview and strategy to prevent cold air discharge.
Detailed operation of indoor/outdoor units, sensors, and communication.
Defrost cycles and conditions for ending heating operation.
System operation in auto mode and dry mode overview.
Indoor/outdoor unit actions and sensor functions in dry mode.
Conditions and sequence for defrost cycles.
Details various system protection mechanisms like overheat and TTC.
Protection against excessive compressor current draw.
Protection against indoor coil freezing due to low temperatures.
Covers tools, location selection, and clearances.
Details mounting the indoor unit and its connections.
Covers outdoor unit mounting and electrical connections.
Connecting units, piping, leak testing, and evacuation.
Process for refrigerant charging and post-installation system testing.
Explaining operation to users and technical specifications.
Special installation considerations for coastal environments.
List of tools and guidelines for choosing an installation location.
Recommended spacing requirements for unit placement.
Detailed steps for mounting the indoor unit and its wall plate.
Procedure for drilling wall penetrations and installing pipe covers.
Attaching indoor unit and connecting outdoor unit electrically.
How to make electrical connections for the indoor unit.
Connecting refrigerant lines and proper torque values for fittings.
Procedures for detecting refrigerant leaks.
Process for evacuating the system to remove air and moisture.
Refrigerant charging, system test, and operational checks.
Guidance for installers on explaining unit operation to users.
Detailed technical specifications for different models.
Special installation considerations for coastal environments.
Codes displayed on the indoor unit and their meanings.
Troubleshooting steps for indoor fan motor faults (Error E14).
Troubleshooting steps for outdoor DC fan motor faults (LED1 Flashes 9 Times).
Troubleshooting IPM protection and compressor overcurrent issues.
Troubleshooting communication faults between IPM and outdoor PCB.
Troubleshooting power supply issues (too high or too low).
Troubleshooting overheat protection and unit communication faults.
Troubleshooting synchronism loss and indoor overload in heating.
Procedures for testing specific outdoor unit components.
Procedures for testing specific indoor unit components.
Procedure to test the indoor DC fan motor.
Procedure to test various outdoor unit sensors.
Testing coils, motors, and reactors like reversing valve, EEV, PFC.
Testing indoor sensors and stepper motors for louvers.
Procedure to test the indoor DC fan motor.
Wiring diagram for the outdoor unit board.
Schematic diagram of the outdoor unit control board.
Wiring diagram for the indoor unit board.
Schematic diagram of the indoor unit control board.
Schematic diagram of the module board.
Resistance tables for room and pipe sensors.
Resistance tables for ambient, defrost, and pipe sensors.
Resistance tables for discharging sensors.
