Viessmann VITOTRONIC 300 GW2, Инструкция по установке и обслуживанию

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Additional information
113
System components
(continued )
Input Module 0 to 10 V, Part No. 7134 561
From software version 7, the Input Module can be connected (software version via scan 2: 1st digit, display

7).
For external control of the boiler/supply temperature via a 0 to 10VDC signal
10 to 100°C or 30 to 120°C
(50 to 212°F or 86 to 248°F)
or
to signal reduced mode and regulate a heating circuit pump to a lower speed.
fÖ Power connection
aVF
0 to 10VDC input
aVG KM BUS to control unit
aBJ Potential free output contact
A Power supply
(provide disconnect if required by
code)
B DIP switch (see table)
DIP switch Function
1 to 3:
1:
2:
3:
4:
4: OFF
ON
ON
ON
ON
OFF Switch for pre-set value
Reduced mode – system circuit A1
Reduced mode – mixing valve circuit M2
Reduced mode – mixing valve circuit M3
Pre-set value default 10 to 100°C / 50 to 212°F
Pre-set value default 30 to 120°C / 86 to 248°F
Please note:
Amongst switches 1 to 3, only one switch may be set to ON.
5285
941
-
0
1
OFF
A
Electronics
24V 5V
L1
40
120 VAC
157 144 145
N S Ö P 1 2 3 1 2 3
1 2 3 4
ON
F1
50mA
B
_ +
(slow)