DC Inverter U-match Series Duct Type Unit
1
1 Safety Precautions
WARNING!
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user.
CAUTION!
This mark indicates procedures which, if improperly performed, might possibly
result in personal harm to the user, or damage to property.
WARNING!
(1). For operating the air conditioner pleasantly, install it as outlined in this installation manual.
(2). Connect the indoor unit and outdoor unit with the room air conditioner piping and cord available
from our standard parts. This installation manual describes the correct connections using the
installation set available from our standard parts.
(3). Installation work must be performed in accordance with national wiring standards by authorized
personnel only.
(4). If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in
contact with a ame, it produces toxic gas.
(5). Do not power on until all installation work is complete.
(6). During installation, make sure that the refrigerant pipe is attached firmly before you run the
compressor.
Do not operate the compressor under the condition of refrigerant piping not attached properly with
2-way or 3-way valve open.
This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even
injury.
(7). During the pump-down operation, make sure that the compressor is turned off before you remove
the refrigerant piping.
Do not remove the connection pipe while the compressor is in operation with 2-way or 3-way
valve open.
This may cause abnormal pressure in the refrigerant cycle that leads to breakage and even injury.
(8). When installing and relocating the air conditioner, do not mix gases other than the specified
refrigerant (R410A) to enter the refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an
abnormally high value and cause breakage, injury, etc.
(9). This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for their
safety.
(10). Children should be supervised to ensure that they do not play with the appliance.
(11). If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualied persons in order to avoid a hazard.
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