External Demand Via Switching Contact - Viessmann Vitodens 200-W Installation Instructions Manual

Installation sequence
Electrical connections
Circulation pump at plug sA
M
A
1~
L N
?
sA
A Circulation pump

External demand via switching contact

Connection options:
■ Extension EA1 (accessory, see sepa-
rate installation instructions).
■ Plug lH.
18
(cont.)
Rated current
Rated voltage
Set function of connected component
in coding address "39"
Function
DHW circulation pump
Heating circuit pump for
heating circuit without mixer
A1
Circulation pump for cylinder
heating (delivered condi-
tion)
Connection
!
Please note
'Live' contacts lead to short cir-
cuits or phase failure.
The external connection must be
potential-free.
2(1) A~
230 V~
Code
39:0
39:1
39:2