Table of Contents
Advertisement
Installation Manual
7.4 Refrigerant piping
1)Drill a hole ( 55mm in diameter ) in the spot indicated by the
2)The location of the hole is different depending on which side of the pipe is taken out .
3)For piping ,see Connecting the refrigerant pipe ,under Indoor Unit Installation(1).
4)Allow space around the pipe for a easier indoor unit pipe connection.
CAUTION
Min.allowable length
● The suggested shortest pipe length is 2.5m,in order to avoid noise from the outdoor unit and vibration.
(Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used.)
● See the installation manual for the outdoor unit for the maximum pipe length.
7.5 Boring a wall hole and installing wall embedded pipe
● For walls containing metal frame or metal board ,be sure to use a wall embedded pipe
and wall cover in the feed-through hole to prevent water leakage.
● Be sure to caulk the gaps around the pipes with caulking material to prevent water leakage.
1)Bore a feed-through hole of 55mm in the wall so it has a down slope toward the outside.
2)Insert a wall pipe into the hole.
3)Insert a wall cover into wall pipe .
4)After completing refrigerant piping, wiring, and drain piping, caulk pipe hole gap with putty.
7.6 Drain piping
1)Use commercial regid polyvinyl chloride pipe general VP 20 pipe, outer diameter 26mm, inner diameter 20mm for the drain pipe.
2)The drain hose (outer diameter 18mm at connecting end, 220mm long)is supplied with the indoor unit. Prepare the drain pipe picture
below position.
3)The drain pipe should be inclined downward so that water will flow smoothly without any accumulation.(Should not be trap.)
4)Insert the drain hose to this depth so it won't be pulled out of the drain pipe.
5)Insulate the indoor drain pipe with 10mm or more of insulation material to prevent condensation.
6)Remove the air filters and pour some water into the drain pan to check the water flows smoothly.
L
e
t f
b
t o
75
Left back piping
Refrigerant pipe
100
Drain hose
symbol in the illustration as below .
o t
m
p
p i
n i
g
75
75
75
Right back piping
wall
150
50mm
or more
Vinyl chloride
Reducer
drain pipe
Unit:mm
Wall
R
g i
t h
b
t o
o t
m
p
p i
n i
g
45
Left/right piping
Floor
75
Inside
Wall embedded pipe
(field supply)
Wall hole cover
(field supply)
Must be no trap
Do not touch water
Outside
Caulking
Wall embedded pipe
(field supply)
17
Advertisement
Table of Contents
