Haier 3U19FS2ERA Service Manual page 61

Making a Hole on the Wall and Fitting the Piping Hole
1
Cover
Make a hole of 70 mm in diameter, slightly descending to outside the
wall
Install piping hole cover and seal it off with putty after installation
Wall hole
Ø70mm
Indoor side
(Section of wall hole)
2
Installation of the Indoor Unit
Removal of Front Grille
Hold the front panel by the tabs on the both sides and lift it until it
stops with a click.
Loosen the marked five screws and open the grille
[ Rear piping ]
Draw pipes and the drain hose, then fasten them with the adhesive
tape
・
[ Left Left-rear piping ]
In case of left side piping, cut away, with a nipper, the lid for left
piping.
In case of left-rear piping, bend the pipes according to the piping
direction to the mark of hole for left-rear piping which is marked on
heat insulation materials.
1. Insert the drain hose into the dent of heat insulation materials of
indoor unit.
2. Insert the indoor/outdoor electric cable from backside of indoor
unit, and pull it out on the front side, then connect them.
Indoor Unit Installation
Outdoor side
Thickness of wall
G Piping hole pipe
Drawing of pipe
3. Coat the aring seal face with refrigerant oil and connect pipes.
Cover the connection part with heat insulation materials closely,
and make sure xing with adhesive tape
Heat insulation
material
Drain hose
Indoor/outdoor electric cable and drain hose must be bound with
efrigerant piping by protecting tape.
[ Other direction piping ]
Cut away, with a nipper, the lid for piping according to the piping
direction and then bend the pipe according to theposition of wall
hole. When bending, be careful not to crash pipes.
Connect beforehand the indoor/outdoor electric cable, and then
pull out the connected to the heat insulation of connecting part
specially.
Fixing the indoor unit body
Remove the front panel,then use two fastening screws to fix
the unit on the floor. As the figure shown.
Once refrigerant piping and drain piping connections are
complete,fill the gap of the through hole with putty.Attach the
front panel and front grille in their orginal positions once
all connections are complete.
3
Connecting the indoor/outdoor Electric Cable
Removing the wiring cover
Remove terminal cover at top right corner of indoor unit,and then
take off wiring cover by removing its screws.
252
System configuration
Lid for right
piping
Fix with adhesive
tape
Indoor/outdoor electric cable
Piping
Pipe supporting
plate
Domestic air conditioner
Lid for left piping