INSTALLATION
21
ENGLISH
1
Use the heat insulation material for the refrigerant piping which has an excellent
heat-resistance (over 248°F).
2
Precautions in high humidity circumstance:
This air conditioner has been tested according to the "ISO Conditions with Mist"
and confirmed that there is not any default. However, if it is operated for a long
time in high humid atmosphere (dew point temperature: more than 73.4°F), water
drops are liable to fall. In this case, add heat insulation material according to the fol-
lowing procedure:
- Heat insulation material to be prepared... EPDM (Ethylene Propylene Diene Meth-
ylene)-over 248°F
the heat-resistance temperature.
- Add the insulation over 10mm(0.39 inch) thickness at high humidity environment.
Closing shutoff valve
1 Remove the cap and turn the valve clockwise with the hexagon wrench.
2 Securely tighten the valve until the shaft contacts the main body seal.
3 Make sure to tighten the cap securely.
* For the tightening torque, refer to the table on the below.
Tightening torque
Shut off
valve size
[mm(inch)]
Tightening torque N·m(lbs·ft) (Turn clockwise to close)
Shaft(valve body)
Cap
(Valve lid)
Service
port
Flare nut
Gas line pip-
ing attached
to unit
Closed Opened Hexagonal
Ø6.35(1/4)
6.0 ±0.6
(4.4±0.4)
5.0 ±0.5
(3.7±0.4)
4mm
(0.16inch)
17.6±2.0
(13.0±1.5)
12.7±2
(9.4±1.5)
16±2(12±1.5)
-
Ø9.52(3/8)
38±4(28±3.0)
Ø12.7(1/2)
10.0 ±1.0
(7.4±0.7)
20.0±2.0
(14.8±1.5)
55±6
(41±4.4)
Ø15.88(5/8)
12.0 ±1.2
(8.9±0.9)
5mm
(0.24inch)
25.0±2.5
(18.4±1.8)
75±7
(55±5.1)
Ø19.05(3/4)
14.0 ±1.4
(10.3±1.0)
110±10
(81.1±7.4)
Ø22.2(7/8)
30.0 ±3.0
(22.1±2.2)
8mm
(0.31inch)
-
25±3.0
(18.5±2.2)
Ø25.4(1.0)
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