Hitachi RPI-0.8FSG1 Service Manual page 262

SERVICING
(2.11 Cleaning Indoor Unit Heat Exchanger)
(7) Put approximately 15 liters of cleaning agent for aluminum fins in a supply tank.
(8) Insert the spray nozzle through the hole of the cleaning water collector. Operate the water pump and
clean the dust on the heat exchanger. After cleaning, spray clean water to remove the cleaning
water. Adjust the pressure of the water pump
so as not to damage the fins.
NOTES:
1. If the cleaning water remains, fins will be corroded.
2. Adjust the pressure of the pump at 2.5 to 5.0 kg/cm
2-122
TURN OFF all power source switches.
Cleaning Agent for
Aluminum Fins
Bucket
Clean Water, Cleaning Agent,
Tool
Water Pump, Cleaning Spray
Cleaning
Spray
2
so as not to damage fins.