Panasonic S-200PE2E5 Technical Data & Service Manual page 38

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Precautions for insulation installation
In high humidity environment, reinforce the insulation material for the refrigerant piping. Failure to do so may result in
condensation on the surface of the insulation material.
Use materials with good heat-resistant properties as the heat insulator for the pipes. Ensure to insulate both the gas side
and liquid side pipes.
If the pipes are not adequately insulated, condensation and water leakages may occur.
Ensure that the current insulation covers the pipes up to the unit's connecting part.
If the piping is exposed, it may cause condensation or burn (when touch the pipe).
Precautions for flare nut installation
Dimensions when adding fl are nuts and the tightening torque
Piping size
ø 6.35
ø 9.52
ø 12.7
ø 15.88
ø 19.05
After piping connection has completed, ensure there is no gas leakage.
When tightening the fl are nut, coat the fl ares (inner surface only) with refrigerant oil on the
fl ares
Firstly, screw in 3-4 turns by hand.
* Ensure not to get oil on the screw part.
Refrigerant oil used is ether-based.
Once the piping connections are completed, perform leakage inspection using nitrogen gas.
Maximum temperature limit of gas or liquid piping exceeds 120 °C
Tightening torque Flare section dimensions A
14.0N•m ~ 18.0N•m
(140kgf•cm ~ 180kgf•cm)
34.0N•m ~ 42.0N•m
(340kgf•cm ~ 420kgf•cm)
49.0N•m ~ 55.0N•m
(500kgf•cm ~ 560kgf•cm)
68.0N•m ~ 82.0N•m
(690kgf•cm ~ 830kgf•cm)
100N•m ~ 120N•m
(1020kgf•cm ~ 1220kgf•cm)
8.7 ~ 9.1
12.8 ~ 13.2
16.2 ~ 16.6
19.3 ~ 19.7
23.6 ~ 24.0
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Flare confi guration
Application for ether-based oil