Reference Manual; Safety Precaution - Mitsubishi Electric Mr.SLIM PUZ-HA24NHA Service Manual

1

REFERENCE MANUAL

INDOOR UNIT
Model name
PLA-A24EA7
PKA-A24KA7
PCA-A24KA7
PEAD-A24AA7
PVA-A24AA7
2

SAFETY PRECAUTION

2-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
Preparation before the repair service.
• Prepare the proper tools.
• Prepare the proper protectors.
• Provide adequate ventilation.
• After stopping the operation of the air conditioner, turn off the power-supply beaker.
• Discharge the condenser before the work involving the electric parts.
Precautions during the repair service.
• Do not perform the work involving the electric parts with wet hands.
• Do not pour water into the electric parts.
• Do not touch the refrigerant.
• Do not touch the hot or cold areas in the refrigerating cycle.
• When the repair or the inspection of the circuit needs to be done without turning off the power,
exercise great caution not to touch the live parts.
• When opening or closing the valve below freezing temperatures, refrigerant may spurt out
from the gap between the valve stem and the valve body, resulting in injuries.
OCH721A
Service Ref.
PLA-A24EA7
PKA-A24KA7.TH
PCA-A24KA7.TH
PEAD-A24AA7
PVA-A24AA7
2
Service manual No.
OCH640/OCB640
OCH639/OCB639
OCH638/OCB638
HWE1608A/BWE01629A
MD-1404-K011/MD-1404-K012