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5.3.4 Installation
In the case of new ceiling
(1) Install unit temporally
Put suspending bracket on the suspending bolt. Be sure to use nut and washer at both ends of the bracket.
(2)
As for the dimensions of ceiling hole, see paper pattern. Ask your real estate dealer for details.
Center of the hole is marked on the paper pattern.
Center of the unit is marked on the card in the unit and on the paper pattern.
Mount paper pattern
< After installation on the ceiling >
(3) Adjust unit to its right position. (Refer to preparation for the installation-(1))
(4) Check unit's horizontal level.
Watert pump and flating switch is installed inside indoor unit, check four corners of the unit for its level using
horizontal compartor or PVC tube with water. (If unit is tilting against the direction of water drainage, problem
may occur on floating switch, causing water leakage.)
(5) Remove the washer mounlting
(6) Remove the paper pattern.
In the case of ceiling already exists
(1) Install unit temporally
Put suspending bracket on the suspending bolt. Be sure to use nut and washer at both ends of the
bracket. Fix the bracket firmly.
(2) Adjust the height and position of the unit. (Refer to preparation for the installation (1) ).
(3) Proceed with
3
and
Level
5.3.5 Refrigerant piping
As for outdoor piping, please refer to installation Manual of outdoor unit.
Outdoor is precharged with refrigerant.
Be sure to see the Fig.1, when connecting and removing piping from unit.
For the size of the flare nut, please refer to Table 1.
Apply refrigerant oil at both inside and outsid of lflare nut. Tighten it band tight 3-4 turns then tighten it.
Use torque specified in Table 1. (Too much force may damage flare nut, causing gas leakage).
Check piping joints for gas leakage. Insulate piping as shown in Fig. below.
Cover joint of gas piping and insulator
Apple refrigerant oil
Torque spanner
spanner
Piping joing
Flare nut
onto unit using 3 screws
4
, and tighten the nut above.
7
of "In the case of new ceiling".
4
Center of ceiling hole Paper pattern
Polythene pipe
6
with seal
Medium size seal pad 9 (accessory)
(Cover the piping joint with seal pad.)
Clip 3
Insulator (accessory)
(For liquid pipe)
Insulator (accessory)
(For gas pipe)
Gas pipe
Liquid pipe
INSTALLATION INSTRUCTIONS
. Fix the corner of the drain pan at piping outlet.
5
Scrtews at the piping outlet is fixed at the corner
of drain pan.
Screw
5
(accessory)
[Fix the paper pattern]
.
9
Table 1
Pipe
Tighten
torque
size
3270~3990N . cm
9.52
(333~407kgf . cm)
6180~7540N . cm
15.88
(630~770kgf . cm)
9720~11860N . cm
7
19.05
(990~1210kgf . cm)
6
Diameter of Pipe
Liquid Pipe 6.35mm
Gas Pipe 12.7mm
- 21 -
Paper pattern
4
Screw
(accessory)
5
A(mm)
Flare shape
12.0~12.4
R0.4 ~ 0.8
18.6~19.0
22.9~23.3
Tighten Torque
18 N. m
50N. m
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