Grundfos UNOLIFT, Installation And Operating Instructions Manual

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3.17 Installing a diaphragm pump
The diaphragm pump is optional.
1. Drill the outlet for the diaphragm pump. See
section Drilling holes for the pipes.
2. Fit the DN 40 socket seal in the opening for the
diaphragm pump at the bottom of the tank. See
figures Unolift 270 / Duolift 270 and Duolift 540.
3. Insert the pipe from the diaphragm pump into the
outlet.
4. Secure the diaphragm pump and connect it to the
building outlet pipe according to the installation
and operating instructions of the pump.
Related information
3.7 Drilling holes for the pipes
6.1 Product overview
3.18 Installing the controller
Mount the controller on a wall with screws through the
mounting holes of the back plate.
The cable entries must point downwards, and the
user interface must be easily accessible.
See the installation and operating instructions of the
controller.
3.19 Electrical connection
DANGER
Electric shock
Death or serious personal injury
‐
Before starting any work on the
product, make sure that the power
supply has been switched off and that
it cannot be accidentally switched on.
DANGER
Electric shock
Death or serious personal injury
‐
The protective earth (PE) of the power
outlet must be connected to the
protective earth of the product. The
plug must have the same PE
connection system as the power outlet.
DANGER
Electric shock
Death or serious personal injury
‐
The installation must be fitted with a
residual current device (RCD) with a
tripping current less than 30 mA.
DANGER
Electric shock
Death or serious personal injury
‐
The product must be connected to an
external main switch with a minimum
contact gap of 3 mm (0.12 inch) in all
poles.
3.19.1 Connecting the pump
Connecting the pump to a power socket
1. Lead the pump cable through the cable gland.
2. Fit the power plug on the cable. A Schuko plug is
supplied with the product.
3. Insert the plug into a power socket.
Connecting the pump to a controller
1. Lead the pump cable through the cable gland.
2. Connect the pump cable to the controller. See the
wiring diagram supplied with the controller.
3.19.2 Connecting the level sensor hose to the
controller
Connect the level sensor hose to the pneumatic entry
in the bottom of the controller. The hose is connected
properly when it is pushed all the way in and locked in
position.
3.19.3 Connecting an alarm float switch to the
controller
1. Lead the cable of the float switch through one of
the M20 cable glands in the bottom of the
controller.
2. Connect the cable to the terminal for high-level
alarm. See the installation and operating
instructions of the controller.
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English (GB)