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7. To prevent gas leakage, turn the service port's cap. The valve rod's
cap for 2-way valve and 3 way's a little more than the point
where the torque increases suddenly.
8. After attaching each cap, check for gas leakage around the caps.
Step 2
Open
Step 3
Step 4
Open 90°
2-way valve
2-way valve. Liquid side
3-way valve. Gas side
Step 1
Tubes (for R410A)
Close
2-way Valve
3-way Valve
3-way valve
Gauge manifold
(for R410A)
Anti countercurrent
joint
Vacuum pump
(for R410A)
Step 6
2-way valve
3-way valve
Step 7
2-way valve
3-way valve
Valve
rod cap
Valve
rod cap
Service port cap
CAUTION
• If the refrigerant of the air con-
ditioner leaks, it is necessary to
discharge all the refrigerant.
Vacuum first, then charge the
liquid refrigerant into air condi-
tioner according to the amount
marked on the name plate.
• Please do not let other cooling
medium except the specified
one (R410A) or air enter into
the cooling circulation system.
Otherwise there will be abnor-
mal high pressure in the system
to make it crack and lead to
personal injuries.
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