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Ultra Heat GMV VRF Technical Service Manual PREFACE AND SAFTY PRECAUTIONS
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
Installation
Always check for gas (refrigerant) leakage after installation or repair of product.
Low refrigerant levels may cause failure of product.
Do not install the product where the noise or hot air from the outdoor unit could damage the
neighborhoods.
It may cause a problem for your neighbors.
Keep level even when installing the product.
To avoid vibration or water leakage.
Do not install the unit where combustible gas may leak.
If the gas leaks and accumulates around the unit, an explosion may result.
Use power cables of sufficient current carrying capacity and rating.
Cables that are too small may leak, generate heat, and cause a fire.
Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a
consumer air conditioner, not a precision refrigeration system.
There is risk of damage or loss of property.
Keep the unit away from children. The heat exchanger is very sharp.
It can cause the injury, such as cutting the finger. Also the damaged fin may result in degradation of
capacity.
When installing the unit in a hospital, communication station, or similar place, provide sufficient
protection against noise.
The inverter equipment, private power generator, high-frequency medical equipment, or radio
communication equipment may cause the air conditioner to operate erroneously, or fail to operate. On
the other hand, the air conditioner may affect such equipment by creating noise that disturbs medical
treatment or image broadcasting.
Do not install the product where it is exposed to sea wind (salt spray) directly.
It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins,
could cause product malfunction or inefficient operation.

Operation
Do not use the air conditioner in special environments.
Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the air conditioner or damage
its parts.
Do not block the inlet or outlet.
It may cause failure of appliance or accident.
Make the connections securely so that the outside force of the cable may not be applied to the
terminals.