Heat Controller DMH18DB-1 manual Connecting the Piping, For right rear piping, Check, Indoor

Flaring Work and Connection of Piping

Check

1.Compare the flared work with the figure.

2.If a flared section is defective, cut it off and do flaring work again.

Smooth all round

Inside is shiny without scratches

= Improper flaring =

Inclined Surface Cracked Uneven

damaged thickness

Even length

all round

Connecting the Piping

Indoor

1. Prepare the indoor unit's piping and drain hose for installation through the wall.

2. Remove the plastic tubing retainer(see the illustra- tion) and pull the tubing and drain hose away from chassis.

3. Replace the plastic holder in original position.

For right rear piping

1.Route the indoor tubing and the drain hose in the direction of rear right.

2.Insert the connecting cable into the indoor unit from the outdoor unit through the piping hole.

•Do not connect the cable to the indoor unit.

•Make a small loop with the cable for easy connec- tion later.

3.Tape the tubing, drain hose, and the connecting cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the uper side can cause drain pan to overflow inside the unit.

If the drain hose is routed inside the room, insulate the hose with an insulation material* so that dripping from "sweating"(condensation) will not damage furniture or floors.

*Foamed polyethylene or equivalent is recommended.

Drain hose

Tape

Connecting pipe

Drain hose

Connecting cable

Service Manual 19