Forming The Piping - Heat Controller DMH18DB-1 Service Manual

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.
30 Multi type Air Conditioner
Seal a small
opening around
the pipings with
gum type sealer.
Plastic
band
• Trap is required to prevent water from entering
into electrical parts.
Seal a small opening
around the pipings
with gum type sealant.
Trap
Taping
Drain hose
Pipings
Connecting
cable
Power supply
cord
Trap