Cautions In Repair; Safety Cautions - Haier MRV5-H Service Manual

PART 1

1. Safety Cautions

Cautions and warnings
Read these SAFETY CONSIDERATIONS carefully before installing air conditioning equipment. Make sure that the
unit operates properly during the start-up operation after completing installation.
Instruct the customer on how to operate and maintain the unit.
Inform customers that they should store this Installation manual with the operation manual for future reference.
Always use a licensed installer or contractor for installation of this product. Improper installation can result in water
or refrigerant leakage, electrical shock, fire, or explosion.
Meanings of DANGER, WARNING, CAUTION, and NOTE Symbols:
DANGER ............... Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING ............. Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION .............. Indicates a potentially hazardous situation, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices.
NOTE .....................Indicates situations that may result in equipment or property-damage accidents only. Be
sure to read the following safety cautions before conducting repair work.

1.1 Cautions in Repair

Be sure to turn off power at disconnect switch and lock before
making repairs.
Working on the equipment while it is connected to the power supply
can cause an electrical shock.
Do not touch any electrically charged sections of the equipment
if it is necessary to supply power to the equipment for repairs or
inspecting the circuits
Do not touch refrigerant gas piping if refrigerant gas discharges
during repair work. The cold temperature can cause personal injury.
Recover refrigerant gas completely when disconnecting the suction
or discharge pipe from the compressor at welded sections.
Residual refrigerant gas and oil can cause injury if allowed to
discharge while servicing the compressor.
Ventilate the area completely if refrigerant gas is discharged during
repair work. The refrigerant gas can generate toxic gases if it comes
in contact with flames.
Capacitors will store high levels of power in the outdoor unit.
Be sure to discharge all capacitors completely before conducting
repair work. A charged capacitor can cause an electrical shock.
Warning
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