Filter
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43
Gas side (15.9 mm
(diam.)
)
Gas side (12.7 mm
(diam.)
)
Gas side (9.52 mm
(diam.))
Liquid side (6.35 mm
(diam.)
)
Service port
63 to 77 N•m (6.3 to 7.7 kgf•m)
50 to 62 N•m (5.0 to 6.2 kgf•m)
33 to 42 N•m (3.3 to 4.2 kgf•m)
14 to 18 N•m (1.4 to 1.8 kgf•m)
14 to 18 N•m (1.4 to 1.8 kgf•m)
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
Packed valve handling precautions
• Open the valve stem all the way out ; do not try to
open it beyond the stopper.
• Securely tighten the valve stem cap at the torque as
follows:
Hexagonal wrench is required.
5
EVACUATING
<For RAV-SM800AT-E 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.
SM800 type valve at gas side
Cover
Cap
Piping valve
Tightened
Flare nut
Loosened
Cover
Never put the spanner or
torque wrench, etc. on
the cover.
The valve may be broken.