Installer manual - nibe.com

20
Settings
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Electrical addition - maximum output
The immersion heater can be set up to a maximum of 9
kW. Delivery setting is 9 kW.
The immersion heater output is divided into 4 steps, according
to the table.
Setting maximum output in the electrical addition is done
in menu 5.1.12.
Power steps of the immersion heater
Electrical
addition
(kW)
0
2
4
6
9
Max (A) L1
0.0
0.0
0.0
8.7
8.7
Max (A) L2
0.0
8.7
8.7
8.7
16.2
Max (A) L3
0.0
0.0
8.7
8.7
16.2
The table displays the maximum phase current for the
relevant electrical step for the indoor module.
If the current sensors are connected, the indoor module
monitors the phase currents. In the event of a phase
overload, the power is reconnected to another/other
phases.
Chapter 5 | Electrical connections
VVM 500
APH
Emergency mode
When the indoor module is set to emergency mode (SF1
is set to ) only the most necessary functions are activated.
� The hot water capacity is reduced.
� The load monitor is not connected.
� Fixed temperature in the flow line.
NOTE
Switch (SF1) must not be moved to " "or" "
until VVM 500 has been filled with water. Otherwise
the temperature limiter, thermostat and
the immersion heater etc can be damaged.
Power in emergency mode
The immersion heater’s output in emergency mode is set
with the dipswitch (SF1) on the immersion heater circuit
board (AA1) according to the table below. Factory setting
is 6 kW.
2
4
6
9
kW
ON
1
off
off
on
on
1 2 3 4 5 6
2
off
off
off
off
3
off
on
on
on
4
off
off
off
on
5
on
on
on
on
6
off
off
off
on
The image shows the dip-switch (AA1-SF1) in the factory
setting, that is 6 kW.
Emergency mode thermostat
The supply temperature is set in emergency mode using
a thermostat (FD1-BT30). It can be set to 35 (pre-set, for
example underfloor heating) or 45 °C (for example radiators).
LEK
NIBE VVM 500