Lines from the manifold are attached to the SSV at D and should be left
one to two turns lose while the line to the DSV should be tightened. Then
open both of the manifold valves at A and B 1/4 turn to 1/2 turn and cap
the middle opening,E.
Now turn the(DSV)Cstemin1'8 to 1/4 turn for just a moment(crack the
valve).A surge of high-pressure refrigerant will then rush through the lines
and the manifold and purge to the atmosphere at the loose connection at
D the SSv. This connection may then be tightened.Purging is necessary
to remove air and moisture from the manifold and lines. NOTE: Purging
must be held to a minimum to avoid damage to the atmosphere.
Carefully test for leaks while the manifold and its lines are under high
pressure. Correct any leak immediately.
Various service and testing operations may be performed after the
testing manifold has been installed:
1. Observe operating pressures by:
Closing valve A by turning all the way in.
Closing valve B by turning all the way in.
Cracking open back seat of valve C.
Cracking open back seat of valve D.
2. Charge refrigerant into system by:
Connecting refrigerant cylinder to E (vapor only).
Opening valve A.
Closing valve B.
Closing front seat of valve D slowly.
3. Purge condenser by:
Closing valve A.
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