Davey HP, HS & HM Pressure Systems with Presscontrol - Manual (Page 5)

8 5
Priming and Operation
The Presscontrol module fitted to your system is provided with a push button
“Prime” button. This button is used during initial priming of the pump and also acts
as a reset button if the Presscontrol switches out in pump protection mode.
1. Remove priming plug and fill casing and suction
line (on flooded suction, simply open gate valve to
pump). When full, replace priming plug.
2. Ensure outlet nearest
to pump is open.
3. Ensure all valves in suction line are open.
4. Switch on power - The status indicator light will be illuminated
green and the pump will run. A full flow of water should be
discharged from the open tap.
5. If the pump stops with the tap open see troubleshooting checklist.
6. Close the open outlet or tap and the pump should stop after a few seconds (the
status indicator light should be illuminated red (constant). If not, consult the
troubleshooting checklist.
To Reset if Pump switches out in Pump Protection Mode
1. Make sure pump is primed.
2. Open tap, push prime button.
3. Close tap and pump will stop.
Power Connection
Connect lead to power supply designated on pump label. Do not use long
extension leads as they cause substantial voltage drop, poor pump performance
and may cause motor overload.
Electrical Power Surge Protection
An electrical power surge or spike can travel on the supply lines and cause
serious damage to your electrical equipment. The Presscontrol fitted to this pump
has a metal oxide varistor (MOV) fitted to help protect it’s circuit. This MOV is
a “sacrificial” device, meaning that it effectively is gradually damaged every time
it takes a surge. The MOV is not a lightning arrestor and may not protect the
Presscontrol if lightning or a very powerful surge hits the pump unit.
If the installation is subject to electrical power surges or lightning we strongly
recommend the use of suitable additional surge protection devices on ALL electrical
equipment.
The Presscontrol fitted to this pump has a status indicator light mounted
on its front panel. This light will be illuminated whenever the Presscontrol
senses that there is electrical power available. The light will only work
when unit is connected to the correct electrical supply.
The electrical connections and checks must be made by a qualified
electrician and comply with applicable local standards.
NOTE: For protection, the Davey pump motors are fitted with an automatic
reset thermal overload, constant tripping of this overload indicates a
problem e.g. low voltage at pump, excessive temperature (above 50°C) in
pump enclosure.