Installation Procedure

Drain Pipe

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

1.5m ~ 2m

bolts

 

Heat

A downhill grade

 

insulation of 1/100 or more

(b)When connecting the drain pipe to unit, pay suffcient attention not to apply excess force to the piping on the unit side. Also, fix the piping at a point as close as possible to the unit.

Improper piping

Avoid riding across an elevation

Air vent

Keep free from traps

Do not pipe under water

Stage

difference Drain hose Drain socket part

(c)For drain pipe, use hard PVC general purpose pipe VP-25(I.D.1") 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).

(d)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.

(e)The hard PVC pipe put indoor side should be heat insulated. Do not ever provide an air vent.

Drain socket

VP-25 joint

 

 

 

Pipe cover(large) (field purchased)

 

[for insulation]

 

Main unit

(accessory)

 

 

Drain hose

VP-25

 

(field purchased)

 

Clamp(accessory)

 

 

 

(accessory)

Adhesion

Pipe cover

 

Pipe cover(small)

 

[for insulation]

 

 

(field purchased)

 

[for insulation]

 

 

 

 

 

(accessory)

 

 

Secure the elevation as high as possible (approx. 100 mm)

A downhill grade of

VP-30

 

1/100 or more

 

(f)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-flow quantity of drain at the event of interruption of the operation gets too much and it may cause overflow at the drain pan. Therefore, make the height of the drain pipe within the distance given in the sketch below.

(g)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.

290~325mm

dimension)

Drain hose

drain up

(Maximum local

600

Joint for VP-25 (Local procurement)

Right overhead

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Haier AD36NS1ERA, AD24MS1ERA, AD28NS1ERA, AD48NS1ERA operation manual Drain Pipe Drain Piping

AD48NS1ERA, AD24MS1ERA, AD28NS1ERA, AD36NS1ERA specifications

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