Reference Manual; Safety Precaution - Mitsubishi Electric PUZ-HA24NHA1 Service Manual

1

REFERENCE MANUAL

INDOOR UNIT SERVICE MANUAL
Model Name
PLA-A12/18/24/30/36/42EA7
PKA-A12/18LA
PKA-A24/30/36KA7
PCA-A24/30/36/42KA7
PEAD-A12/18/24/30/36/42AA7
PVA-A12/18/24/30/36/42AA7
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 breaker.
• 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.
OCH750A
Service Ref.
PLA-A12/18/24/30/36/42EA7
PKA-A12/18LA
PKA-A24/30/36KA7.TH
PCA-A24/30/36/42KA7.TH
PEAD-A12/18/24/30/36/42AA7
PVA-A12/18/24/30/36/42AA7
2
Service Manual No.
Parts Catalog No.
OCH640
OCB640
-
-
OCH639
OCB639
OCH638
OCB638
HWE1608A
BWE01629A
MD-1404-K011
MD-1404-K012