2
OCH737
2-1. ALWAYS OBSERVE FOR SAFETY
Before obtaining access to terminal, all supply circuits must be disconnected.
INDOOR UNIT SERVICE MANUAL
Model Name
Service Ref.
Service
Manual No.
PLA-M50/60/71/100/125EA
PLA-M50/60/71/100/125EA.UK
OCH697
OCB697
PCA-M71HA(-ET)
PCA-M71HA(-ET)
OCH725
OCB725
PCA-M50/60/71/100/125KA
PCA-M50/60/71/100/125KA
OCH659
OCB659
PKA-M50HA(L)
PKA-M50HA(L)
OCH660
OCB660
PKA-M60/71/100KA(L)
PKA-M60/71/100KA(L).TH
OCH661
OCB661
PEAD-M50/60/71/100/125JA(L)
PEAD-M50/60/71/100/125JA(L).UK
HWE16130
BWE017010
2
SAFETY PRECAUTION
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.
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.
1
REFERENCE MANUAL
MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT
WARNING
(Risk of fire)
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.
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.
