Hokkaido HCNL 821 XMR, Руководство по обслуживанию

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4. Cutting and Flaring work of piping
Pipe cutting is carried out with a pipe cutter and burs must be removed.
After inserting the flare nut, flaring work is carried out.
Please pour water in the drain pan of the indoor unit, and confirm that drainage is carried out serely
to outdoor.
In case that the attached drain hose is in a room, please apply heat insulation to it without fail.
5. On drainage
Please install the drain hose so as to be downward slope without fail.
Correct
Incorrect
Lean Damage of flare Crack Partial Too outside
Pipe diameter
*
Size A (mm)
Liquid side
Gas side
6.35mm(1/4")
9.52mm(3/8")
0.8~1.5
1.0~1.5
A
Flare tooling die
Refrigerant piping work
-31 -
Gas side
1
12.7mm(1/2") 1.0~1.5