Drain Piping
Drain piping should always be in a downhill grade (1/50~1/100) and avoid riding across an elevation or making traps.
Drain hose
Stage
difference
part
Drain socket
Drain socket
Main unit
VP(field purchased)
Pipe cover(large)
[for insulation]
(accessory)
VP(field purchased)
Pipe cover
[for insulation]
(field purchased)
Drain hose
(accessory)
Pipe cover(small)
[for insulation]
(accessory)
Clamp
(accessory)
Adhesion
Do not pipe under water
Keep free from traps
Avoid riding across an elevation
Air vent
Improper piping
Good piping
1.5m ~ 2m
Suspension
bolts
Heat
insulation
A downhill grade
of 1/100 or more
(b)
(c)
VP-30
Secure the elevation as high as possible
(approx. 100 mm)
A downhill grade of
1/100 or more
Right overhead
Drain hose
Joint for VP
(Local procurement)
7
00
(Maximum local drain up dimension)
290~325mm
(d)
(e)
(f)
(h)
(a)
Drain Pipe
For unit without water pump
When connecting the drain pipe to unit, pay su
ff
cient attention
not to apply excess
f
orce to the piping on the unit side. Also,
f
ix
the piping at a point as close as possible to the unit.
For unit without water pump,please re
f
er to the digram and select
drain pipe size according to drain opening inner diameter size.
The drain pipe shall be slant downwards
(
greater than 1/100
)
.
The horizontal length o
f
the drain pipe shall be less than 20 m
.In case o
f
long pipe, supports shall be provided every 1.5~2m
to
prevent wavy
f
orm.Central piping shall be laid out
-
a
ccord
i
ng to the right
f
igure.
Take care not to apply external
f
orce
onto the drain pipe connection
part.
For unit with water pump drain pipeuse hard PVC general purpose
pipe VP which can be purchased locally. When connecting, insert
a
PVC pipe end securely into the drain socket be
f
ore tightening
-
securely using the attached drain hose and clamp. Adhesive
must
not be used
f
or connection o
f
the drain socket and
drain hose
(
accessory
)
.
When constructing drain piping
f
or several units, position the
common pipe about 1 00 mm below the drain outlet o
f
e
ach unit
a
s shown in the sketch. Use VP-30
(11
/4"
)
or thicker pipe
f
or this
purpose.
The hard PVC pipe put indoor side should be heat insulated. Do
not ever provide an air vent.
The height o
f
the drain head can be elevated up to a point
7
00
mm above the ceiling, and when an obstacle exists in the ceiling
s
pace, elevate the piping to avoid the obstacle using an elbow
or corresponding gadget. When doing this, i
f
the stretch
f
or the
needed height is higher than
7
00 mm, the back-
f
low quantity o
f
drain at the event o
f
interruption o
f
the operation gets too much
a
nd it may cause over
f
low at the drain pan. There
f
ore, make the
height o
f
the drain pipe within the distance given in the sketch
below.
Avoid positioning the drain piping outlet at a place where generation
o
f
odor may be stimulated. Do not lead the drain piping direct into
a
sewer
f
rom where sul
f
ur gas may generate.
(g)
For unit with water pump
Installation Procedure
18
1.5m~2m
Support
Insulation (supplied by the user)
Down slope above 1/100
2
5
mm
AD71S2SM7FA
AD100S2SM7FA
AD125S2SM7FA AD140S2SM7FA
Unit model
The size of drain opening
Содержание AD100S2SM7FA
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