SF AllVac Commercial, Установка, эксплуатация и обслуживание, Страница: 17 / 36

RRGA-SVX01A-EN 17
Operation
b) Before proceeding with this procedure, chiller pressure must be at a mini-
mum of 15” Hg. of vacuum or greater for R-11 or R-123. The minimum
pressure for R113 is 25” Hg. vacuum. If the chiller is not above the mini-
mum level, do not proceed with liquid transfer, but repeat procedure 3
above.
Do not continue this procedure until it is confirmed that chiller
pressure is above minimum required level.
c) Refrigerant hoses should be connected as follows:
Hose From To
Tank Vapor Tank AllVac System Vapor
Tank Liquid Tank AllVac System Liquid
Chiller Vapor Chiller AllVac Tank Vapor
Chiller Liquid Chiller AllVac Tank Liquid
d) Follow the procedures per the AllVac display, except you may ignore in-
structions to evacuate hoses at this time if hoses have already been evac-
uated per procedure 2 above.
Slowly open the specified valves in the following sequence:
(1) Recovery tank liquid valve
(2) AllVac system liquid valve
(3) AllVac tank liquid valve
(4) Chiller liquid valve
e) Monitor pressure in chiller condenser and evaporator. If pressure in chiller
becomes greater than 8 psig, shut down power to AllVac and remove non-
condensibles from chiller before resuming transfer.
f) Operate unit until all liquid refrigerant is removed from recovery tank. All-
Vac liquid sight glass, tank sight glass and liquid level gauge should all in-
dicate that all liquid refrigerant has been removed from the tank.
g) When all liquid refrigerant is removed from recovery tank, press “ENTER”
key two times on AllVac and vapor transfer from recovery tank will com-
mence. Continue to let AllVac run until vapor recovery is complete.