BMKH Low Wall Owners Manual

Drain piping
1)Use commercial regid polyvinyl chloride pipe general VP 20 pipe, outer diameter 1in, inner diameter 0.78in for
the drain pipe.
2)The drain hose (outer diameter 0.70in at connecting end, 8.66in 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 0.39in 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.
3.93
Drain hose
3.93
5.90
Vinyl chloride
drain pipe
1.96in
or more
Reducer
Must be no trap
Do not touch water
16
INSTALLATION INSTRUCTIONS
Installation of indoor unit
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 2.16IN 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.
Inside Outside
Caulking
Wall embedded pipe
(field supply)
Wall hole cover
Wall embedded pipe
(field supply)
Φ55