GRUNDFOS
INSTRUCTIONS
www.grundfos.co.uk
Page 26 of 35
Tank low water level
Flow switch
17
On completion of the service and annual test
switch OFF the mains power.
Ensure mains power isolator is
locked in the OFF position.
Silence the controller internal
buzzer by pressing Test/Reset
18
Prepare the area for water spillage.
19
Close the suction side isolating valves.
Remove the test line.
Water will be pressurised, release
slowly and allow to drain slowly.
20
Refit the test line plug.
Ensure water tight connection.
Use PTFE cord
21
Open the suction and discharge isolating valve
22
Prime the CM pump and whole system.
Replace priming screws etc. to seal system.
Refer to CM pump I&O manual for
guidance.
23
Inspect for leaks.
Fix any leaks
24
Review all of the above actions, then apply mains power
to unit.
25
Pump will start, run for 20 seconds and pressurise the
system. If necessary, prime the system again.
Check the pressure gauge value is as expected.
Press Test/Reset button if the
excessive starts fault appears
26
Inspect for leaks.
Fix any leaks
27
Replace front cover and re-fit the two screws.
28
Set the pump test time.
Press and hold the Test/Reset
button on the control panel.
Weekly Test time set at this time.
Clean up area and ensure safe for user,
Mains isolator is locked in the ON position
Isolating valves locked in the OPEN position
Put system into Service mode and clear any faults
Refer to section 7.1 – Service Mode
29
Clean up area and ensure safe for user.
30
System is ready to operate.
Update history log at back of this
manual. Inform customer that the
system is operational. Handover
this manual.
