What causes Hitachi Air Conditioner to activate safety device from excessively low suction pressure?
If your Hitachi Air Conditioner activates the safety device from excessively low suction pressure, inspect refrigerant levels and piping for blockages. This issue is often due to a shortage or leakage of refrigerant, piping clogging, a closed expansion valve, or a locked fan motor.
Why does my Hitachi YUTAKI RAS-2.5WHVNP Air Conditioner activate safety device from excessively high discharge pressure?
If your Hitachi Air Conditioner activates the safety device due to excessively high discharge pressure, inspect the heat exchanger and refrigerant conditions. This activation can be caused by overload (obstruction of HEX, short circuit), a mixture of inert gas, or excessive refrigerant.
How to fix Hitachi Air Conditioner transmission alarm?
If your Hitachi Air Conditioner displays a 'Transmission Alarm (Not outdoor unit detected)', it typically indicates a connection issue. Check the connectors for any looseness or breakage, as the cause may be a loose, disconnected, broken, or short-circuited connector.
What does Activation of low control mean on Hitachi YUTAKI RAS-2.5WHVNP?
General| Cooling Capacity | 2.5 kW |
|---|---|
| Heating Capacity | 3.2 kW |
| Energy Efficiency Ratio (EER) | 3.21 |
| Power Supply | 220-240V, 50Hz, 1 Phase |
| Refrigerant | R32 |
| Indoor Unit Dimensions (HxWxD) | 280 x 780 x 230 mm |
| Outdoor Unit Dimensions (HxWxD) | 548 x 750 x 288 mm |
| Energy Efficiency Class (Cooling) | A++ |
| Energy Efficiency Class (Heating) | A++ |
| Sound Power Level (Indoor Unit) dB(A) | 24 dB(A) |
| Noise Level (Indoor Unit) | 24 dB(A) |
Detailed safety precautions and warnings for installation and operation.
Temperature ranges for space heating, DHW, swimming pool, and cooling.
Precautions for handling refrigerant leaks and maximum permitted concentrations.
Checks for power supply installation, voltage, and impedance.
Wiring size requirements for electrical connections.
Step-by-step guide for initial controller setup via wizard.
Configuration options for system settings like heating, cooling, and DHW.
Procedures for routine maintenance of the unit.
Guide to identifying and resolving common alarm codes and issues.
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