Toshiba RAM-SM560BT-E - Manual (Page 103)

100
<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
Do not put the spanner or
torque wrench, etc. on
the cover.
The valve may be broken.
<For RAV-SM560AT-E model>
<For RAV-SM800AT-E model>
Hexagonal wrench is required.
Gas side (12.7 mm (diam.))
Gas side (9.52 mm (diam.))
Liquid side (6.35 mm (diam.))
Service port
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)
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 in torque as
follows:
Compound pressure gauge
Service port (Valve core (Setting pin))
Packed valve (Gas side)
Pressure gauge
Manifold valve
Handle Hi
(Keep fully closed)
Charge hose
(For R410A only)
Vacuum pump adapter
for counter-flow prevention
(For R410A only)
Handle Lo
Charge hose
(For R410A only)
–101kPa
(–76cmHg)
Vacuum
pump
Valve rod
Valve unit Flare nut
Stopper
Charge port
Charge cap
Service port
(Valve core (Setting pin))
Compound pressure gauge
Packed valve at gas side
Pressure gauge
Manifold valve
Handle Hi
(Keep fully closed)
Charge hose
(For R410A only)
Vacuum pump adapter
for counter-flow prevention
(For R410A only)
Handle Lo
Charge hose
(For R410A only)
–101kPa
(–76cmHg)
Vacuum
pump