6
(3) Open the piping knockout holes of the desired direc-
tion with nippers, etc. After opening the knockout
holes, install the accessory edge cover to protect the
opened places.
Fig. 19
Knockout hole
Cabinet D
Edge cover
Pipe
Pipe mounting
hole
(4) Always use a drain pipe at two places.
Fig. 20
3/4” (19.05 mm) dia.
3/8” (9.53 mm) dia.
1. FLARE PROCESSING
(1) Cut the connection pipe with pipe cutters so that the
pipe is not deformed.
(2) Holding the pipe downward so that cuttings cannot
enter the pipe, remove the burrs.
(3) Remove the flare nut from the indoor unit pipe and
outdoor unit and assemble as shown in (Table 3).
Insert the flare nut onto the pipe, and flare with a
flaring tool.
(4) Check if the flared part “L” (Fig. 21) is spread uni-
formly and that there are no cracks.
4. CONNECTING THE PIPING
(2) Remove outdoor unit cabinet A and cabinet D.
Fig. 18
* After removing the screws, remove
*
cabinet A by pushing it down.
Valve
Cabinet A
mounting direction
Cabinet D
* Use the accessory screws at these points only
Pipe
Flare nut
Small pipe
Small (width across flats 7/8” (22 mm))
Large pipe
Large (width across flats 1-13/32”(36 mm))
Table 3
1. OUTDOOR UNIT PROCESSING
When the outdoor unit will be exposed to strong wind,
fasten it with bolts at the four places indicated by the
arrows. (Fig. 16)
Fig. 16
Bottom
25-19/32” (650 mm)
15-3/4” (400 mm)
4-ø15/32” (4-ø12mm) hole
(anchor bolt M10)
2. OUTDOOR UNIT CONNECTION CORD
AND PIPE CONNECTION PREPARATIONS
(1) Piping and connection cord mounting direction (4-
way mounting possible).
Fig. 17
Cabinet A
Rear piping
Front piping
Right piping
3. OUTDOOR UNIT INSTALLATION
Bottom piping
Fig. 21
Width across flats
L dimension
Small pipe 3/8”(9.53 mm dia)
5/64” (1.8 to 2.0 mm)
Large pipe 3/4” (19.05 mm dia)
7/64” (2.6 to 3.0 mm)
