Service manual

7
30AW
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maintain the heat pump. Inappropriate installation may result in water
leakage, electric shock or re.
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so may cause electric shock.
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very careful not to enter any gaseous matter other than the specied
refrigerant into the refrigeration cycle.
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refrigeration cycle becomes abnormally high and it may cause pipe
burst and injuries on persons.
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passing any of the safety interlock switches.
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parts.
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Manual. Inappropriate installation may result in water leakage, electric
shock or re.
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appropriate measures to ensure that the concentration of refrigerant
leakage occurred in the room does not exceed the critical level.
This heat pump adopts the new HFC refrigerant (R410A) which does not
destroy ozone layer.
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Be sure that servicing equipment and replacement components are
designed to operate with R-410A.
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ow out with the cylinder in a vertical position with the valve at the
top.
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commercial type metering device in the manifold hose in order to
vaporize the liquid refrigerant before it enters in the unit.
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the weight adequately.
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the falling unit.
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room immediately. If the leaked refrigerant gas comes in contact with
re, noxious gas may generate.
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If refrigerant gas leaks into the room and ows near a re source, such
as a cooking range, noxious gas might generate.
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accordance with the Installation Manual.
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terminals.
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terminals:
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pipes, water pipes, lightning rods or ground wires for telephone
cables.
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exposure to a combustible gas.
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recommended by the compressor manufacturer.
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nitrogen.
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General Informations
2
2.1 General precautions for safety
2.2 R-410A
SM_30AW.indd 7 14-03-2011 14:41:07