Heat Controller DMH18DB-1 User Manual

30 Multi type Air Conditioner

Checking the Drainage, Forming the Pipings and Long Pipe Setting

Forming the piping

Form the piping by wrapping the con-
necting portion of the indoor unit with
insulation material and secure it with
two kinds of vinyl tape.

• If you want to connect an additional drain hose, the

end of the drain outlet should be routed above the
ground. Secure the drain hose appropriately.

In cases where the outdoor unit is
installed below the indoor unit perform
the following.

1. Tape the piping, drain hose and connecting cable

from down to up.

2. Secure the tapped piping along the exterior wall

using saddle or equivalent.

In cases where the Outdoor unit is
installed above the Indoor unit perform
the following.

1. Tape the piping and connecting cable from down

to up.

2. Secure the taped piping along the exterior wall.

Form a trap to prevent water entering the room.

3. Fix the piping onto the wall by saddle or equiva-

lent.

Seal a small opening
around the pipings
with gum type sealant.

Trap

• Trap is required to prevent water from entering

into electrical parts.

Plastic
band

Taping

Drain hose

Pipings

Connecting
cable

Power supply
cord

Seal a small
opening around
the pipings with
gum type sealer.