SF AllVac Commercial, Установка, эксплуатация и обслуживание, Страница: 5 / 36

RRGA-SVX01A-EN 5
General
Information
Product Description
RefTec’s AllVac recovery system provides automated recovery of most low &
high pressure refrigerants and blends.
The unit consists of a 3 or 5-hp compressor with oil separator, disposable
liquid & vapor prefilter driers, high capacity air cooled condenser,
microprocessor control system, and actuated valving system. Unit
connections are 3/4” male flare with isolation valves.
After hoses are connected and purged or evacuated, AllVac starts
automated recovery by letting refrigerant migrate from the A/C system to the
recovery tank. It then draws vapor off the recovery tank, heats it via
compression, and injects it back into the A/C system high side, thus creating
a pressure differential before commencing liquid transfer.
A sensor determines when liquid transfer is complete, and AllVac’s
compressor begins moving vapor, which is first cleansed by a filter drier.
Discharged hot compressed gas passes through an oil separator and the oil
is returned to the compressor. Refrigerant is then condensed by the air-
cooled condenser and sent to the recovery tank.
The AllVac can be programmed to stop transfer at either 0 PSI or at 15” Hg
vacuum for high pressure refrigerant and either 0 PSI or at 29” Hg vacuum
for low pressure refrigerants. Transfer stops when a pressure transducer
indicates the A/C system reaches the programmed pressure. The unit then
confirms the vacuum level by monitoring pressure for two minutes. Should
pressure in the A/C system rise, AllVac energizes again to achieve A/C
system selected level of vacuum.