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Compound
pressure gauge
Pressure gauge
Manifold valve
Handle Hi
(Keep fully closed)
Charge hose
Vacuum pump
adapter for
counter-flow
prevention
Packed valve at gas side
Service port
(Valve core (Setting pin))
Handle Lo
Charge hose
–101kPa
(–76cmHg)
Vacuum
pump
Packed valve
at liquid side
<For 801, 1101, 1401AT model>
• As shown in the figure, be sure to use a double
spanner to loosen or tighten the flare nut of the
valve at gas side. If using a single spanner, the
nut cannot be tightened with necessary tightening
torque.
On the contrary, use a single spanner to loosen
or tighten the flare nut of the valve at liquid side.
801, 1101, 1401 type valve at gas side
Cover
Cap
Piping valve
Tightened
Flare nut
Loosened
Cover
Do not put the spanner or
torque wrench, etc. on
the cover.
The valve may be broken.
7
EVACUATING