Mitsubishi Electronics MSZ-FD09/12NA Pipe Forming and Drain Piping, Left or left-rear piping

2-4. PIPE FORMING AND DRAIN PIPING

2-4-1. PIPE FORMING

•Place the drain hose below the refrigerant piping.

•Make sure that the drain hose is not crowded or bent.

•Do not pull the hose when applying the tape.

•When the drain hose passes the room, be sure to wrap it with insulation material

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Note:

Make sure not to damage the cover of refrigerant pipe when attaching it back on with screws.

Left or left-rear piping

Note:

Be sure to reattach the drain hose and the drain cap if the piping is being installed on left or bottom left of unit, otherwise, water could drip down from the drain hose.

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Felt tape (7) overlap width should be 1/3 the tape width. Use a bandage stopper at the end of felt tape (7).

2)Pull out the drain cap at the back right of the indoor unit. (Fig. 1)

•Hold the convex section at the end and pull the drain cap.

3)Pull out the drain hose at the back left of the indoor unit. (Fig. 2)

•Hold the claw marked by the arrows and pull out the drain hose forward.

4)Put the drain cap into the section to which the drain hose is to be attached at the rear of the indoor unit. (Fig. 3)

•Insert a screwdriver into the hole on the cap and insert the cap fully into the drain pan.

5)Insert the drain hose fully into the drain pan at the back right of the indoor unit. (Fig. 4)

•Check if the hose is hooked securely to the projection of its inserting part at the drain pan.

6)Insert the drain hose into wall hole sleeve (C), and attach the upper part of indoor unit onto the installation plate (1). Then, shift the indoor unit completely to the left to make placing the piping in the back of the unit easier.

7)Cut out a piece of cardboard from the shipping box, roll it up, hook it onto the back rib, and use it as a spacer to lift the indoor unit. (Fig. 5)

8)Connect the refrigerant piping with the extension pipe (B).

9)Attach the lower part of the indoor unit into the installation plate (1).

Rear or bottom piping 3ODFHWKHUHIULJHUDQWSLSLQJDQGWKHGUDLQKRVHWRJHWKHUWKHQ¿UPO\DSSO\SLSLQJWDSH

(G) from the end.

2)Insert the piping and the drain hose into the wall hole sleeve (C), and attach the up- per part of the indoor unit on the installation plate (1).

3)Check if the indoor unit is attached securely on the installation plate (1) by moving the unit to left and right.

4)Attach the lower part of the indoor unit into the installation plate (1).

Right piping

Note:

Before performing the following, make sure that wiring is completed, and the conduit cover is installed. (Refer to 2-3.)

1)Place the refrigerant piping and the drain hose together, shift them to left side of the

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2)Insert the piping and the drain hose into the wall hole sleeve (C), and attach the up- per part of the indoor unit on the installation plate (1).

3)Check if the indoor unit is attached securely on the installation plate (1) by moving the unit to left and right.

4)Attach the lower part of the indoor unit into the installation plate (1).

2-4-2. DRAIN PIPING

•If the extension drain hose has to pass through a room, be sure to wrap it with insu-

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•The drain hose should point downward for easy drain. (Fig. 1)

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•When connecting the drain hose to a hard vinyl chloride pipe, be sure to insert it se- curely into the pipe. (Fig. 3)

Liquid pipe

Gas pipe

Indoor/outdoor unit connecting wire (A)

Felt tape (7)

Piping tape (G)

Felt tape (7)	Piping tape (G)	Remove panel for piping
		on left side of unit.

Drain cap

	Drain hose
Fig. 1	Fig. 2
	Drain hose
Drain cap
Fig. 3	Fig. 4

Fig. 5

Remove panel for piping on bottom side of unit

Remove panel for piping on right side of unit

To the left

	Drain		Drain hose
	hose	27-9/16 in.	Hard vinyl chloride pipe
Downward			I.D. 1-3/16 in.
		(70 cm)
			(30 mm)
slope	Soft hose I.D.	or more
			Insert
	19/32 in.
	(15 mm)	Different	securely
		diameter joint
Fig. 1	Fig. 2		Fig. 3

Do not make drain piping as shown below.

	Do not raise	Accumulated
		drain water
		Air
Water	Water	Waving	Water
leakage	leakage		leakage

	At least
Tip of drain	1-31/32 in.
	(50 mm)
hose dipped
	gap
in water
Ditch