62-61753-21
8-12
Procedure
R-452A Recovery
1/2
Before continue the next steps:
Ensure the manifold installation procedure is
correctly completed.
For Vector unit:
Place the unit in service mode.
Refer to the technical manual (if needed).
Ensure the microprocessor displays:
“RECOVER/LEAK CHK/EVAC MODE”
For other units:
Ensure all unit valves are opened
Ensure that there is no refrigerant traps.
Recovery system installation
1.
Connect the Recovery machine to hose (B).
2.
Place the R-452A recovery bottle onto the
scale.
3.
Check the R-452A recovery bottle weight.
Check the admissible charge indicated
on the R-452A recovery bottle infor-
mation.
4.
Connect the liquid valve (E) of the R-452A
recovery bottle to the Recovery machine.
5.
Adjust compressor services valves HP and
LP.
mid seat position
6.
Adjust the Receiver king Valve.
mid seat position
7.
Open the hoses (A,C,D) service valves
The system is ready for recovery.
R-452A Liquid recovery
1.
Open liquid valve (E).
2.
Start the Recovery machine.
3.
Open hose (B) service valve
4.
Open the manifold gauge valve (2,3).
The R-452A liquid is going from the unit re-
ceiver to the R-452A recovery bottle.
5.
Check the weight on scale.
The R-452A recovery bottle weight must
be stable.
6.
Close hose (B) service valve
7.
Stop the recovery machine.
8.
Close the liquid valve (E)
The R-452A liquid is recovered
9.
Disconnect the R-452A recovery bottle from
the recovery machine.
Continue on next page
Unit Side
Vector MT connection example for recovery
Summary of Contents for NDK33BN0KB
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