Reference Manual; Safety Precaution - Mitsubishi Electric Mr.Slim PUZ-A18NHA4R1 Service Manual

1 TECHNICAL CHANGES
PUZ-A18NHA4
PUZ-A18NHA4-BS
PUY-A12NHA4
PUY-A12NHA4-BS
PUY-A18NHA4
PUY-A18NHA4-BS
• Heat exchanger has been changed.
2

REFERENCE MANUAL

INDOOR UNIT
Model name
PLA-A12/18/24/30/36/42BA4
PCA-A24/30/36/42KA4
PCA-A24/30/36KA4
PCA-A42KA5
PKA-A12/18HA4
PKA-A24/30/36KA4
PEA-A12/18AA4
PEAD-A24/30/36/42AA4
3

SAFETY PRECAUTION

3-1. 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.
OCH481C
PUZ-A18NHA4R1
PUZ-A18NHA4R1-BS
PUY-A12NHA4R1
PUY-A12NHA4R1-BS
PUY-A18NHA4R1
PUY-A18NHA4R1-BS
Service Ref.
PLA-A12/18/24/30/36/42BA4
PCA-A24/30/36/42KA4
PCA-A24/30/36KA4.TH
PCA-A42KA5.TH
PKA-A12/18HA4
PKA-A24/30/36KA4.TH
PEA-A12/18AA4.TH
PEAD-A24/30/36/42AA4
2
Service manual No.
OCH482
OCB482
OCH484
OCB484
OCH501
OCB501
OCH483
OCB483
OCH488
OCB488
HWE0807B
HWE0905A