3 Piping work and refrigerant charge
Refrigerant and drain hose installation
SMGB0099 rev.0 - 12/2016
107
3
 
Drain pipe installation
The position of the drain pipe connection is shown 
below.
55
82
184
(mm)
Prepare a polyvinyl chloride pipe with a 32mm outer 
diameter.
Fasten the tubing to the drain hose with an adhesive 
and the factory-supplied clamp.
28mm
20
+
5mm
Hose band (accessory)
Use vinyl chloride 
type adhesive
Tightening torque: 
3.0 - 3.5N.m
Elbow or vinyl chloride VP25 
(Field-supplied)
Vinyl tape
Drain pipe connection 
for checking drainage 
(transparent)
Drain hose 
(accessory)
Max 300mm
The drain piping must be performed with a down-
slope pitch of 1/25 to 1/100.
b
c
Ceiling
Hose band 
(accessory)
a (Max. 300mm)
Drain hose (accessory)
Support part
1 to 1.5m
1/25 to 1/100 
down-slope
Max. 850mm
Do not apply excessive force to the Drain Pipe 
connection. It could cause a damage.
Do not use a bent or twisted Drain Hose. It will cause 
water leakage.
Insulate the drain pipe after connecting the drain 
hose.
Hose band (accessory)
Insulation (5T x 270 x 270) (accessory)
Wrap up the drain hose 
completely to cover the 
hose band.
? NOTE
If there is excessive clearance between the drain pipe connection and the drain hose, add a sealing material between both parts in order 
to t and not deform the drain hose.