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44
ENGLISH
44
BOILER
Direct
Circuit
CONNECT AT/2BT Board
Mixed
Circuit 2
Mixed
Circuit 1
Power supply
T.A. Direct
Circuit
T.A. 1 Mixed
Circuit 1
T.A. 2 Mixed
Circuit 2
T.A. Direct Circuit
Circuit 2
limit switch
Circuit 1
limit switch
REC Mixed
Circuit 2
T.A. 2 Mixed
Circuit 1
External
sensor
Multizone
board
V1 Circ. 1
V1 Circ. 2
V2 Circ. 2
V2 Circ. 1
TA2 Circ. 1
TA1 Circ. 2
TA2 Circ. 2
FUNCTIONAL DIAGRAM
(for further information, please refer to the instruction sheet for the boiler and the multizone board)
To terminals M1B 26-27
To terminals M1A 23-24
For
ALL
boilers,
connect to the boiler T.A. contacts
W
N
2
2
2
2
2
2
2 BUS
1 power supply phase
2
2
External
Sensor
Multizone board to be
inserted into boiler
DIAGRAM 2
System with mixed circuits divided by zones (valves or electrothermic heads)
The T.A. supply power to valves or electrothermic heads with the limit switch. The remote control is connected to the boiler and the valve is
powered by the multizone accessory board.
Содержание 20083971
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