En-16
CAUTION
Hold the torque wrench at its grip, keeping it in a right angle with the pipe, in order to tighten the flare nut correctly.
•
Outer panel may be distorted if fastened only with a wrench. Be sure to fix the elementary part with a holding
•
wrench (spanner) and fasten with a torque wrench (refer to below diagram). Do not apply force to the blank cap of
the valve or hang a wrench, etc., on the cap. If blank cap is broken, it may cause leakage of refrigerant.
90°
Blank cap
Flare nut
Torque wrench
Holding
wrench
Torque wrench
Flare nut
[mm (in1)]
Tightening torque
[N·m (lbf·ft)]
6.35 (1/4) dia.
16 to 18 (11.8 to 13.3)
9.52 (3/8) dia.
32 to 42 (23.6 to 31.0)
12.70 (1/2) dia.
49 to 61 (36.1 to 45.0)
15.88 (5/8) dia.
63 to 75 (46.5 to 55.3)
19.05 (3/4) dia.
90 to 110 (66.4 to 81.1)
Handling precautions for the valves
51 31 41
Mounted part of Blank cap is sealed for protection.
•
Fasten blank cap tightly after opening valves.
•
Operating the valves
Use a hexagon wrench (size 4mm (5/32in.)).
•
Opening (1) Insert the hexagon wrench into the valve shaft,
•
and turn it counterclockwise.
(2) Stop turning when the valve shaft can no longer
be turned. (Open position)
Closing
(1) Insert the hexagon wrench into the valve shaft,
•
and turn it clockwise.
(2) Stop turning when the valve shaft can no longer
be turned. (Closed position)
Opening direction
Hexagon wrench
Seal (blank cap
installation portion)
Liquid pipe
Gas pipe
Opening direction
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17/5/2556 11:49:43
