Reference Manual; Safety Precaution - Mitsubishi Electric Mr. Slim PUZ-M200YKA2.UK Service Manual

REFERENCE MANUAL

1
INDOOR UNIT SERVICE MANUAL
Model Name
PLA-M50/60/71/100/125EA2
PCA-M71HA2
PCA-M50/60/71/100/125KA2
PKA-M50LA(L)2
PKA-M60/71/100KA(L)2
PSA-M71/100/125KA
PEAD-M50/60/71/100/125JA(L)2
PEA-M200/250LA

SAFETY PRECAUTION

2
MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT
WARNING
(Risk of fire)
Read the OPERATION MANUAL carefully before operation.
Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation.
Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the like.
2-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
2-2. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing refrigerant R32
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.
OCH775B
Service Ref.
PLA-M50/60/71/100/125EA2.UK
PCA-M71HA2
PCA-M50/60/71/100/125KA2
PKA-M50LA(L)2 .TH
PKA-M60/71/100KA(L)2.TH
PSA-M71/100/125KA
PEAD-M50/60/71/100/125JA(L)2.UK
PEAD-M50/60/71/100/125JA(L)2.TH
PEA-M200/250LA
This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.
In the case that refrigerant type is R32, this unit uses a flammable refrigerant.
If refrigerant leaks and comes in contact with fire or heating part, it will create harmful gas and there is risk of fire.
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.
2
Service manual No.
Parts catalog No.
OCH783
OCB783
OCH753
OCB753
OCH752
OCB752
TCH068
TCB068
TCH069
TCB069
OCH724
OCB724
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BWE021440
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BWE022250
HWE20020
BWE020180