English (GB)
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7.10 Setting the operating mode using the operating
panel
By using the connectivity button you can set four different
operating modes directly on the pump’s operating panel.
The pump is factory set to radiator mode. To change operating
mode press and hold the connectivity button for two seconds.
See fig.
The operating panel will reflect the chosen operating mode. See
section
7.1 Light fields indicating the pump setting
. Note that
maximum constant pressure is indicated using the "User set
control mode" light field.
The sequence is as follows:
1. Radiator mode
2. Underfloor mode
3. Radiator and underfloor mode
4. Maximum constant pressure.
Fig. 35
Operating mode sequence when set via the pump’s
operating panel
8. Servicing the product
8.1 Dismantling the product
1. Switch off the power supply.
2. Pull out the plug. For instructions on how to dismantle the
3. Close the two isolating valves on both sides of the pump.
4. Loosen the fittings.
5. Remove the pump from the system.
8.2 Dismantling the plug
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92
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DANGER
Electric shock
Death or serious personal injury
- All electrical connections must be carried out by a
qualified electrician in accordance with local
regulations.
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before starting any
work on the product. Make sure that the power
supply cannot be accidentally switched on.
WARNING
Electric shock
Death or serious personal injury
- A damaged product must be repaired or replaced
by Grundfos or a service workshop authorised by
Grundfos.
WARNING
Hot surface
Minor or moderate personal injury
- The pump housing may be hot due to the pumped
liquid being scalding hot. Close the isolating valves
on both sides of the pump and wait for the pump
housing to cool down.
WARNING
Pressurised system
Minor or moderate personal injury
- Before dismantling the pump, drain the system or
close the isolating valves on both sides of the
pump. Slowly loosen the screws and unpressurise
the system. The pumped liquid may be scalding
hot and under high pressure.
3 s
3 s
3 s
3 s
CAUTION
Sharp element
Minor or moderate personal injury
- Use protective gloves when servicing the product.
Step Action
Illustration
1
Loosen the cable
gland and remove
it from the plug.
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55
45
38
12
2
Pull off the plug
cover while
pressing on both
sides.
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3
Add the conductor
guide plate to
loosen all three
cable conductors
at the same time.
If the guide plate
is missing, then
loosen the cable
conductors one by
one by pressing a
screwdriver gently
into the terminal
clip.
T
M
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38
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4
The plug has now
been removed
from the power
supply cord.
TM
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48
38
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