SF AllVac Commercial, Установка, эксплуатация и обслуживание, Страница: 34 / 36

34 RRGA-SVX01A-EN
Pressure differential between sys-
tem and recovery tank becomes too
high - greater than 50 psig. Restrictions in recovery lines or
tank
Tank needs to have a 3/4” ID valve.
Many tanks do not have 3/4” valves.
RefTec provides tanks fitted with
properly sized valves for this pur-
pose.
Slow liquid transfer. Restriction in flow. Replace restrictive fittings and
hoses with appropriate size to expe-
dite transfer.
Unit will not pump down to a 29”
vacuum on low pressure refrigerant
recovery. Pressure transducer not properly
calibrated. Verify that displayed pressure is
equal to gauge pressure. If they are
different, please follow the calibra-
tion procedures on Page 11 of this
Manual to calibrate the pressure
transducers.
AllVAC running high head pressure
back to recovery tank. Restriction in hoses going to tank. Replace with appropriately sized
hoses and fittings.
Run water over tank or add second-
ary water cooled condensor on liquid
return line going to recovery tank.
RefTec has available secondary
water cooled and air cooled conden-
sors.
Capacity of recovery tank is too
small or tank is overfilled.
Fan not working
High concentration of noncondensi-
bles Replace with appropriately sized
tanks.
Replace fan motor, check for loose
wiring.
Remove noncondensibles.
Automatic actuator valves do not
function. Loss of power to valves Make sure LED’s on mother board
(XPC110) are working. If LED signal
is present at mother board, check to
verify that 24 VAC is being supplied
to actuators. If 24 VAC is not
present, replace transformer.
Display does not show anything and
is blank. Adjust contrast
potentiometer on back of display
board.
Troubleshooting