6
• For left side tubing, be sure to insert the rubber plug into the right drain port. (Fig.
5-1)
• Use VP-20 (O.D. ø26 (1”) PVC TUBE) for drain piping and provide 1/100 or more
downward slope.
• After completion of work, check that correct drain is available from the outflow
port of the drain tubing.
A
Drain pan
B
Plug
C
Insert the driver etc.in the plug deeply.
Fig. 5-1
Installing procedures (Fig. 5-2)
1. Attach the joint socket
5
supplied with the unit to the drain port on the unit with a
vinyl chloride adhesive.
2. Fasten the socket cover
6
supplied with the unit to the joint socket
5
.
3. Attach the field drain tubing (VP-20) to the joint socket
5
with a vinyl chloride
adhesive.
4. Wrap the drain tubing cover
7
supplied with the unit. (Seam taping)
A
Drain pan
B
Drain tubing
C
Socket cover
6
D
Joint socket
5
E
Drain tubing cover
7
F
Stopper
G
Instertion length 1-15/32 in. (37 mm)
5. Check for correct drainage. (Fig. 5-3)
* Fill the drain pan with water of about 1/4 gal (1 L) from the air outlet.
Fig. 5-2
Fig. 5-3
4.3. Indoor unit (Fig. 4-3)
Installing procedures
1. Slide the supplied pipe cover
2
over the gas tubing until it is pressed against the
sheet metal inside the unit.
2. Slide the provided pipe cover
3
over the liquid tubing until it is pressed against
the sheet metal inside the unit.
3. Tighten the pipe covers
2
and
3
at the both ends 3/4 in. (20 mm) with the sup-
plied bands
4
.
A
Gas tubing
E
Pipe cover
3
B
Liquid tubing
F
Press the pipe cover against the sheet metal.
C
Band
4
G
Refrigerant tubing heat insulating material
D
Pipe cover
2
Fig. 4-3
4. Installing the refrigerant piping
5. Drainage piping work
