Engineering Manual
5 Drain Piping
1.Apply vinyl chloride type abhesive to the drainage outlet of the drain lift up mechanism ① , then insert
the VP-20 pipe ④ into it, (30mm deep)
2.Connect the VP20 pipe ④ and existing drain pipe using a 90-degree elbow etc. and adhesive.
3.Cover the VP-20 pipe ④ with the pipe cover ⑤.
4.Apply vinyl chloride type adhesive to the drain lift up mechanism ① and drain connecting hole on the
indoor unit, then insert the flexible hose ⑥ into them. Take care that the hose does not twist.
*Insulate all pipes, from the drain lift up mechanism up to the outside.
*For details on piping, refer to the installation manual of the indoor unit.
Viewed from the Right
Elbow (locally supplied)
VP-20 pipe
(locally supplied)
Push to the end.
W
VP-20 pipe
4
Drain lift up mechanism ①
Flexible hose
6
Apply vinyl chloride type adhesive to these areas.
Drain connecting hole on
the indoor unit
W
Pipe cover
5
W In case of accessory parts VP-20pipe
4
and pipe cover
5
do not have enough
length because the lifting height is high,
please purchase procure supply locally.
Max. 600mm
[Make sure to follow the following points during drain piping.]
*Drain lifting height must be less than 600mm.
*Incline the drain pipe downwards (1/100 or more) to the drainage side (outdoor).
*Do not create traps or peaks.
*Keep the horizontal piping within 20m. Use fixtures to prevent the pipe from waving.
*Do not install air vent pipes. The drainage may spout out.
*Use general-purpose hard vinyl chloride pipes (outer diameter:[26) and apply vinyl chloride type adhesive
to prevent any leakage.
*
Cover with insulator (made of foamed polyethylene, with specific gravity of 0.03 thickness of 9mm or more).
*Do not install odor trap at the drain outlet.
*Locate the end of pipe at a point where odor is unlikely to occur.
*Do not insert the pipe directly into a drainage ditch where sulfur gas may be produced.
*Use VP-30 pipes for centralized piping. Install the centralized drain pipe approximately
10cm below the output of pipes connected from the drain lift up mechanism.
Support
Drain lift up mechanism
Downward
inclination
Downward
inclination
(1/100 or more)
(1/100 or more)
Air vent
Odor trap
VP-30
Make the drop as long as possible(approx. 10cm)
[Example of centralized piping]
Drain lift up mechanism
Re-rizing
1.5~2m
Drain Pump PAC-SH84DM-E
193