Hitachi RPI-0.8FSG1 Service Manual page 261

(1) Scratch off the dust on the inner surface of the heat exchanger downwards using a brush. Collect all
dust in a bucket or carton box.
(2) Attach a vinyl sheet by using adhesive tape around the heat exchanger so that cleaning water will not
be splashed over the insulation surface and drain-up pump. Seal the gap between vinyl sheets by
using adhesive tape.
(3) Attach ropes to the each suspension bracket.
(4) Put the metal bars through the holes of the cleaning water collector.
(5) Attach the ropes to the four bars of the cleaning water collector and suspend the cleaning water
collector as shown in the figure.
(6) Connect a hose to the boss and put end
of hose in a bucket.
Support
Bar
(8 Nos.)
TURN OFF all power source switches.
Indoor Unit
Cleaning
Water
Collector
Boss
Hose
Bucket
(2.11 Cleaning Indoor Unit Heat Exchanger)
Tool Brush, Bucket (or Carton Box)
Tool Cutter Knife, Bucket
Suspension
Bolt
Rope
Suspension
Bracket
20 to 30mm
Ceiling
Cleaning Water
Collector
SERVICING
The water
collector should
be located 20 to
30mm higher
than the bottom
of the unit.
2-121