Cleaning 4-Way Cassette Type Indoor Unit - Hitachi FSG Series Service Manual

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WARNING: TURN OFF all power source switches
2.10.2 CLEANING 4-WAY CASSETTE TYPE INDOOR
UNIT
Spread a vinyl sheet over the floor to protect furnitures, etc.
from cleaning water before this work.
Procedure:
1 Remove the optional air panel according to page 2-15
and the item, 2.3.4, "Removing Optional Air Panel".
2 Remove the electrical box after opening the electrical
box cover and disconnecting the connectors between
the indoor and outdoor units and other connectors
according to page 2-15 and the item, 2.3.3, "Removing
Electrical Box Cover".
3 Remove the bell-mouth and fan according to page 2-16
and the item, 2.3.5, "Removing Turbo Fan and Fan
Motor".
4 Remove the drain pan according to page 2-19 and the
item, 2.3.9, "Removing Drain Pan".
5 Remove the float switch according to page 2-18 and the
item, 2.3.7, "Removing Float Switch".
6 Remove the drain-up mechanism according to page 2-
18 and the item, 2.3.8, "Removing Drain-up
Mechanism".
1. Attach a vinyl sheet around the heat exchanger so that
cleaning water will not be splashed over the insulation
surface and drain-up pump. Fix the vinyl sheet on the side
plate of the heat exchanger by using tape with adhesive.
Seal the gap between vinyl sheets using tape with
adhesive.
NOTE:
Wear gloves to avoid any injury by fins of the heat
exchanger .
In addition to magnets, fix the motor cover using tape with
adhesive
Magnet
Motor Band
Magic Tape
Tape with Adhesive
Magnet
Motor
Cover
NOTES:
Remove the drain pan after removing drain water on the
drain pan.
1 Remove the drain water on the drain pan after pulling
out the rubber plug. Check to ensure that water can
flow smoothly through the hole by pricking it with a
pencil.
2 Remove the drain pan after removing four fixing
screws. Carefully remove the drain pan, since drain
water may remain at the bottom of the drain pan.
3 Clean and dry the drain pan after removing. Carefully
handle the drain pan not to damage it.
Water Collector
Before attaching the
water collector to the
heat exchanger, take
the following work.
Magnet
Inner Side
5 Nos.
2
SERVICING
49
Motor Cover
Put a vinyl sheet here
to protect insulation
sheet from the
splashed cleaning
water.
Magnet
Vinyl Sheet
(A,B,C,D)