Settings
VVM 310
BT30
AA1-X3
AA1-SF1
AA1-X7
AA1-X1
Electrical addition - maximum output
The immersion heater can be set up to a maximum of
8 kW. Delivery setting is 8 kW.
The immersion heater output is divided into 9 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
Max (A) L3Max (A) L2Max (A) L1Electrical
addition
(kW)
0.00.00.00
0.00.05.81.33
0.00.011.162.67
0.011.65.84
0.011.611.65.33
5.811.611.66.66
11.611.611.68
11.617.411.69.33
17.417.411.610.66
17.417.417.412
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.
Emergency mode
When the indoor module is set to emergency mode
(SF1 is set to
) only the most necessary functions are
activated.
႑
The hot water capacity is reduced.
႑
The load monitor is not connected.
႑
Fixed temperature in the flow line, see chapter
Emergency mode thermostat on page 24.
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 8 kW.
654321kW
offoffoffoffoffon1.33
offoffoffoffonoff2.67
offoffonoffoffon4
offoffonoffonoff5.33
onoffonoffoffon6.66
onoffonoffonoff8
onoffonoffonon9.33
onoffonononon10.66
onononononon12
1 2 3 4 5 6
ON
The image shows the dip-switch (AA1-SF1) in the fact-
ory setting, that is 8 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 310Chapter 5 | Electrical connections24
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