TapFlo Guardian system Mk3.1, Operation & Maintenance Manual

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DEAD-HEAD & STOP (DH&S)
Issue : 020913-B TPUK-GU31X 28
Operation
•
To start the pump, apply compressed air to the pump and Guardian.
•
The pump should continue to run until either
1. Air to the pump and/or guardian is interrupted.
2. The pump/Guardian experiences a dead-head condition, which is
represented by the visual indicator of the Guardian extending.
•
To stop the pump, interrupt the air to the pump and/or Guardian.
•
To re-start the system after a dead-head has occurred
1. Ensure the dead-head condition has been corrected.
2. Press the reset button and the pump should re-start (when air is
applied).
Trouble shooting
Check the system is configured as shown in the recommended configuration
then see possible solutions below. If the problem persists consult Tapflo (UK).
Symptom Cause Remedy
Pump failure. See pump operating manual.
Unstable air supply. Check all connections and air
supply.
System is
inoperative
Inconsistent pump
discharge pressure. Fit back pressure device such as
NRV or orifice plate to stabilize
pressure.
Set point is not correct. Perform recalibration.
Air supply is not stable. Fit air pressure regulator.
Media has changed. Perform set up procedure.
Pump stops
erratically
Leaking
interconnections. Remake or replace interconnections.
Incorrect configuration. Check all connections against
recommended installation.
Guardian set for
alternative application. Check function plate position.
Consult Tapflo (UK) Ltd.
Guardian
does not
work
Air pressure too low. Air pressure must be > 1bar higher
than set point.
Poor installation. Remake interconnections.
Interconnection
specification unsuitable
for media. Check connections are suitable for
the application.
Media
egress
Guardian tie rods loose. Check torque is within specification.