4
This adjustment should only be carried out by a suitably
qualified and authorised person.
For suction lifts over
1 metre
Installations with a Suction Lift
Installations with a suction lift over 1m require a good quality foot
valve to avoid loss of prime. In this case, the poppet valve inside
the pump should be removed. In addition, for suction lifts over
1.5m, the pressure switch may need to be adjusted to enable the
pump still to automatically cut out.
Adjustment of Pressure Switch
(For lifts of 1.5m or over)
Your Davey dealer would be happy to assist.
1) Switch off pump and unplug it from power point.
2) Remove pressure switch cap.
3) Turn Adjusting screw, (A)
1
/
2
turn anticlockwise.
4) Replace cap and switch on pump.
5) If
pump cuts out
, repeat steps (1), (2) and (3). Adjustment is
now complete.
6)
If pump does not cut out
after step (4), repeat steps (1) to
(5).
IMPORTANT:
For Automatic Pressure Pumps Installed with a Mains
Pressure Hot Water System
Use gate valves for flooded suction.
Installations with Flooded Suction
Installations with flooded suction require a gate
valve so water supply can be turned off for pump
removal and servicing.
(Contact your Davey dealer to adjust pressure
switch if pump cycles.)
Abrasive Materials
The pumping of abrasive materials will cause damage to the pressure system
which will not be covered by the guarantee.
