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Installation
79
Burner Connection, Burner Control Wiring (VD2/VD2A/CT3 only)
(continued)
Write the terminal numbers or
markings on the drawing for future
reference.
Burner power supply not shown.
A
Control unit
(Legend: see wiring diagram)
B
2nd stage or modulating *
1
C
Hours counter, stage 1 *
1
D
Burner fault indicator *
1
E
Control circuit, stage 1/
basic load *
1
F
Burner
fÖ
Power supply connection of control
unit 120 VAC
fA
Burner, 1st stage
lÖ
Burner, 2nd stage
aBÖ
Plugs for external equipment
a
External safety devices
(remove jumper when connecting)
b
External controlled switch-off
(remove jumper when connecting)
aBA
Safety circuit. Emergency
shut-off
*
1
Refer to burner manufacturer’s instruction on detailed connections for Viessmann controls.
5
3
5
1
3
3
8
v
1
.8
This is a generic connection drawing
only! Follow the burner
manufacturer’s connection drawings
for Viessmann controls.
CAUTION
a
b
Plug connection
located on the
DIN rail. See page
42 for details.
Содержание Vitotronic 100 GC1
Страница 43: ...Installation 43 Overview of Electrical Connections VD2 VD2A CT3 only continued 5351 338 v1 8 29 20 A1 ...
Страница 44: ...Installation 44 Overview of Electrical Connections CM2 only continued 5351 338 v1 8 ...
Страница 128: ...Additional information 128 Wiring Diagrams continued Line voltage motherboard 5351 338 v1 8 A11 A3 floating ON ON ...
Страница 131: ...Additional information 131 Parts List 5351 338 v1 8 ...