Viessmann C3TB, Инструкции по установке и обслуживанию для подрядчиков

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37
!
Please note
Live contacts lead to short circuits or phase fail-
ure.
The external connection
must be floating and
meet the requirements of protection class II.
Plug lH EA1 extension
A
lH
N
?
1 L
A
Floating contact (when connected, remove jumper
between L and 1)
B
[{S
DE
[{D
DE
[{A
DE
A
A Floating contact
B
EA1 extension
Codes
■
"4b:2" in group "General"/1
■
Effect of the function on the heating circuit pump:
Coding address "d6" in group
"Heating circuit" (only
for weather-compensated control units)
■
Effect of the function on the circulation pump for cylin-
der heating:
Coding address "5E" in group
"DHW"/3
Codes
■
Set "3A" (DE1), "3b" (DE2) or "3C" (DE3) to 3 or 4 in
group
"General"/1 .
■
Effect of the function on the heating circuit pump:
Coding address "d6" in group
"Heating circuit" (only
for weather-compensated control units)
■
Effect of the function on the circulation pump for cylin-
der heating:
Coding address "5E" in group
"DHW"/3
Power supply for accessories (230 V ~)
156 156 156 40
X4
8 7 6 5 4 3 2 1
X1 X3
K
T6,3 A
Fig. 35
Power cables for accessories can be connected to
plug
aBH
on the distribution board. This connection is
switched using the ON/OFF switch on the control unit
of the gas condensing module.
If the total system current exceeds 6 A, connect one or
more extensions directly to the mains supply via an
ON/OFF switch.
Installation sequence
Electrical connections
(cont.)
5775 636 GB
Installation