Separate Control Cabinet; Electrical Connection; Start-Up; Preparations Before Start-Up - Grundfos Fire NKF Montage- Und Betriebsanleitung

10.12 Separate control cabinet

For the "Flex" version, the control cabinet is delivered separately
for mounting on a wall or the floor. In this case, the controller
must be placed as close to the pump as possible and within view
of the pump set. The control cabinet must also be easily
accessible.
Warning
Make sure that water escaping from the pump or
pipework cannot damage the control cabinet.
Caution
The control cabinet is only intended to be
installed indoors and must not be exposed to
direct sunlight. Ensure sufficient ventilation for
the components in the control cabinet.
Fix the control cabinet to the wall with screws. Drill holes in the
wall according to the drawing on the back of the control cabinet.
Warning
When drilling the holes, pay attention to electric
cables or water and gas pipework.

11. Electrical connection

Warning
The electrical installation should be carried out
by an authorised person in accordance with local
regulations and the wiring diagram in the control
cabinet.
Warning
Switch off the power supply before making
connections.
See installation and operating instructions for
Note
the controller.
Check that the supply voltage and frequency correspond to the
values stated on the nameplate of the control cabinet.
22
All manuals and user guides at all-guides.com

12. Start-up

12.1 Preparations before start-up

1. Check that all screws are tight.
2. Check that all pipes and hoses are installed correctly.
3. Check all electrical connections.
4. Check that all fuses in the control cabinet are switched on.
5. Check the alignment of the coupling.
6. Check that all safety devices are installed.
7. Make sure that any storage tank and pump priming tank are
8. Set the pressure switches according to the instructions.
9. Fill the pump and suction pipe with water.
Warning
Start-up should be carried out by an authorised
person.
Warning
The control cabinet of the controller must remain
closed during start-up.
Do not start the pump until it has been filled with
Caution
water and vented.
The pump must not run against a closed valve as
Caution
this may cause an unacceptable temperature
increase or the formation of vapour.
See also installation and operating instructions
Note
for the controller.
Pump set with Clarke diesel engine:
We recommend that you register the diesel
engine before start-up. Otherwise Clarke cannot
Note
provide any warranty if the engine is faulty.
Go to www.clarkefire.com: SERVICE, PARTS &
WARRANTY.
See section 10.5 Alignment.
filled with water.
System pressure minus 0.5 bar can be used as a reference
value.
Unscrew the vent plug in the pump housing (pump with electric
motor), see fig. 28, or on the discharge side (pump with diesel
engine). Open the isolating valve on the suction side.
Fill water through the filling hole in the discharge pipe until
water runs out of the hole. Fit the plug and tighten it to 25 Nm
(1/2") or 30 Nm (3/8").
Fig. 28 Vent plug M