47NIBE BA-SVM 10-200
Relay board (AA7)
Outputs
Output Function
AA7-X2-2 Contactor for immersion heater (K1A)
AA7-X2-4 Contactor for immersion heater (K2A)
AA7-X2-6 Contactor for immersion heater (K3A)
Titanium anode board (AA8)
(Does not apply to BA-SVM 10-200/6/12 R)
Inputs
Input Function
AA8-X1 Power supply from X1
AA8-X2 Titanium anode
AA8-X3 Indicator light
Relay board (AA27)
Inputs
Input Function
AA27-X1 Alarm relay
Display unit (AA4)
The display unit consists of:
• a colour screen where all information is displayed.
• a status lamp.
• navigation buttons (OK button, Back button and
Control knob).
• a USB socket.
• a service socket.
Status lamp Function
Lights green Normal function
Lights yellow Emergency mode activated
Lights red Alarm tripped
Section 6 | Component description