Nortek GKU18USV4DH, Installation Instructions & Owner'S Manual

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DC Inverter U-match Series Cassette Type Unit
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(15). During pump-down, stop the compressor before removing the refrigerant piping. If the
compressor is still running and the stop valve is open during pump-down, air will be sucked in
when the refrigerant piping is removed, causing abnormal pressure in the freezer cycle which
will lead to breakage and even injury.
(16). During installation, attach the refrigerant piping securely before running the compressor. If the
compressor is not attached and the stop valve is open during pump-down, air will be sucked in
when the compressor is run, causing abnormal pressure in the freezer cycle which will lead to
breakage and even injury.
(17). Be sure to ground equipment. Do not ground the unit to a utility pipe, arrester, or telephone
conduit. Incomplete grounding may cause electrical shock, or fire. A high surge current from
lightning or other sources may cause damage to the air conditioner.
(18). Be sure to install ground fault interrupter. Failure to install a ground fault interrupterr may result
in electric shocks, or fire.
(19). This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge,
(20). Children should be supervised to ensure that they do not play with the appliance.
(21). If the supply cord is damaged, it must be replaced with and appropriate size cord .
(1). Do not install the air conditioner in a place where there is danger of exposure to inflammable
gas leakage. If the gas leaks and builds up around the unit, it may catch fire.
(2). Establish drain piping according to the instructions of this manual. Inadequate piping may
cause flooding.
(3). Tighten the flare nut according to the specified method such as with a torque wrench. If the
flare nut is tightened too much, the flare nut may crack and cause refrigerant leakage.