Haier AB18CS1ERA - Page 181

Indoor Unit
179
Super Match
Drain Piping
(a) Drain piping should always be in a downhill grade (1/50~1/100) and avoid riding across an elevation or making
traps.
Good piping
Suspension bolts
1.5m~2m
A downhill grade
of 1/100 or more
Heat insulation
For unit without water pump
1.5m~2m
Support
Down slope above
1/100
Insulation
(supplied by the user)
Improper piping
Air vent
Avoid riding across an elevation
Keep free from traps
Do not pipe under water
Unit model
The size of drain
opening
AD12MS1ERA AD12MS1ERA(D) AD18MS1ERA
AD18MS1ERA(D) AD24MS2ERA AD24MS2ERA(D)
AD28MS2ERA(S) AD28MS2ERA(S)(D)
21mm
AD24MS1ERA AD24MS1ERA(D) 15.5mm
AD28NS1ERA(S) AD36NS1ERA(S) AD48NS1ERA(S) 33mm
24
Drain hose
600
(Maximum
local
drain
up
dimension)
～
～
。 。
～
～
。
Drain socket
Pipe cover(large)
VP(field purchased)
[for insulation]
Main unit
(accessory)
Drain hose
(accessory)
Clamp
(accessory)
Adhesion
Pipe cover(small)
[for insulation]
(accessory)
VP(field purchased)
Pipe cover
[for insulation]
(field purchased)
Stage
Drain socket
difference
part
Drain hose
Secure the elevation as high as possible
(approx. 100 mm)
A downhill grade of
1/100 or more
290～325mm
Joint for VP
(Local procurement)
VP-30
Right overhead
For unit with water pump
(b) When connecting the drain pipe to unit, pay sufcient attention
not to apply excess force to the piping on the unit side. Also,
x the piping at a point as close as possible to the unit.
(c) For unit without water pump,please refer to the diagram
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 of the drain pipe
shall be less than 20 m. In case of long pipe, supports shall be
provided every 1.5~2m to prevent wavy form.
Central piping shall be laid out according to the right gure.
Take care not to apply external force onto the drain pipe
connection part.
(d) For unit with water pump drain pipe use hard PVC general
purpose pipe VP which can be purchased locally. When
connecting, insert a PVC pipe end securely into the drain
socket before tightening securely using the attached drain
hose and clamp. Adhesive must not be used for connection of
the drain socket and drain hose (accessory).
(e) When constructing drain piping for several units, position the
common pipe about 100 mm below the drain outlet of each
unit as shown in the sketch. Use VP-30(11/4”) or thicker pipe
for this purpose.
(f) The hard PVC pipe put indoor side should be heat insulated.
Do not ever provide an air vent.
(g) The height of the drain head can be elevated up to a point
500 mm above the ceiling, and when an obstacle exists in
the ceiling space, elevate the piping to avoid the obstacle
using an elbow or corresponding gadget. When doing this, if
the stretch for the needed height is higher than 500 mm, the
back-ow quantity of drain at the event of interruption of the
operation gets too much and it may cause overow at the
drain pan. Therefore, make the height of the drain pipe within
the distance given in the sketch below.
(h) Avoid positioning the drain piping outlet at a place where
generation of odor may be stimulated. Do not lead the drain
piping direct into a sewer from where sulfur gas may generate.