Mitsubishi Heavy Industries FD-PAC, Техническое руководство

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Make sure there is no dust or clogging on both the plug and the socket nor loose
connection of the socket before plugging, and plug in securely to the end of the blade.
Accumulation of dust, clogging on the socket or plug, or loose installation of the socket could
cause electric shock and fire. Replace the socket if it is loose.
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Connect the pipes for refrigeration circuit securely in installation work before compressor
is operated.
If the compressor is operated when the service valve is open without connecting the pipe, it could
cause explosion and injuries due to abnormal high pressure in the system.
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Stop the compressor before removing the pipe on pump down work.
If the pipe is removed when the compressor is in operation with the service valve open, air would
be mixed in the refrigeration circuit and it could cause explosion and injuries due to abnormal high
pressure in the cooling cycle.
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Use the genuine optional parts. And installation should be performed by a specialist.
If you install the unit by yourself, it could cause water leakage, electric shock and fire.
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Do not repair by yourself. And consult with the dealer about repair.
Improper repair may cause water leakage, electric shock or fire.
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Consult the dealer or a specialist about removal of the air conditioner.
Improper installation may cause water leakage, electric shock or fire.
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Turn off the power source during servicing or inspection work.
If the power is supplied during servicing or inspection work, it could cause electric shock and injury
by the operating fan.
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Do not run the unit when the panel or protection guard are taken off.
Touching the rotating equipment, hot surface, or high voltage section could cause an injury to be
caught in the machine, to get burned, or electric shock.
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Shut off the power before electrical wiring work.
It could cause electric shock, unit failure and improper running.
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Ground the equipment. Do not connect the ground wire to gas piping, water piping, a lightning rod,
or telephone ground wires. It grounding is not performed correctly electric shock could occur.
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Depending on the installation location, a circuit breaker may need to be installed. It a circuit
breaker is not installed, electric shock may occur.
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Please follow this manual faithfully in performing installation work. Improper installation work can
cause abnormal vibrations and noise generation.
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Do not install the equipment in areas where there is danger of flammable gas leaks. It such gas
does leak it could collect around the units and cause a fire.
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Install the drain piping in accordance with the installation manual so that it properly discharges
waste water and is maintained at a temperature that prevents condensation.
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Do not install the outdoor unit where winds from its fan blow directly onto a plant, etc. Winds can
affect adversely to the plant, etc.
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Secure a space for inspection and maintenance as specified in the manual. An insufficient space
can result in an accident such as a fall from the installation point and a resultant personal injury.
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When the outdoor unit is installed on a roof or at an elevated point, provide permanent ladders
and handrails along the access route and fences and handrails around the outdoor unit.
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In tightening a flare nut, use a double spanner and observe the specified tightening torque. Care
must be taken so as not to overtighten a nut and damage the flare part. (Please refer to the
tightening torque) The loosening or damage of the flare part can cause a refrigerant gas leak and
a resultant lack-of-oxygen accident.
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Please dress the refrigerant piping with a heat insulation material for prevention of dew
condensation. Improper heat insulation for prevention of dew condensation can cause the leaking
or dripping of water and a resultant soaking of household effects.
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When refrigerant piping is completed, check its air-tighteness with nitrogen gas to make sure it
does not have a leak. A leak of refrigerant gas in a narrow room beyond the safety limit
concentration can cause a lack-of oxygen accident.
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If the humidity exceeds 80% or the drain or piping become clogged, condensation from the indoor
unit could drip and cause damage. Please do not install the indoor units above items of furniture,
etc. that you do not want to get wet. Also, do not place items that youdo not want to get wet
underneath the indoor units.
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