CALEFACTIO GMP4 Instrucción página 4

EN
OPEN SYSTEM ISOLATION VALVE AND PLUG ADAPTOR INTO WALL OUTLET.
3. If the system pressure is below the pressure reducing valve
(PRV) setting, the pump will start. The pump will run until
the system is pressurized to the PRV setting. The pump
may cycle rapidly.
4. If a higher system pressure is required, adjust the PRV to
the desired value as follows:
A) Close the isolation valve.
B) Loosen the lock nut.
MAINTENANCE
The GMP requires no scheduled maintenance.
SYSTEM PRESSURE IS BELOW SET POINT
POSSIBLE CAUSE
System isolation valve closed.
System is unplugged.
No power to the system.
Low liquid level in the tank.
Float has stopped the pump.
Pressure reducing valve out of adjustment.
Defective pressure gauge.
Pump motor failure.
PUMP DOES NOT PRIME
POSSIBLE CAUSE
External check valve or regulator installed
between system and feeder.
Pump is air locked.
PUMP CYCLES CONTINUOUSLY
POSSIBLE CAUSE
Air is being removed from the system
and replaced with liquid.
External check valve or regulator installed
between system and feeder.
Control level piggyback float switch is not
stopping the pump.
Leak in system.
4
C) Turn the screw clockwise until the gauge displays the
desired pressure.
D) Hold the screw and tighten the lock nut. (The standard
system feeder PRV can be adjusted to 35 PSI.)
5. To get to a lower pressure, open the security valve and let
the pressure go down below the desired pressure. From
there, follow the steps stated in #4.
CORRECTIVE ACTION
Open the system isolation valve.
Plug the system in the wall outlet. Make sure that the AC/DC
adaptor is plugged on the side of the unit, and in the wall outlet.
Verify that the wall outlet has power.
Add fluid. Find the source of the leak and repair.
Adjust the PRV.
Check pressure using another gauge. Replace defective gauge.
Replace pump.
CORRECTIVE ACTION
Remove the check valve or regulator.
Bleed the supply line.
CORRECTIVE ACTION
Allow sufficient time for air removal.
The pump will stop operating when air is removed.
Remove the check valve or regulator.
Ensure that the float is operating properly and
that it is not held in the closed position (floating).
Find source of the leak and repair.