Circulation Pump At Plug Sa; Pumps With Power Consumption Greater Than 2 A Or Connection For He Pump - Viessmann Vitocrossal 100 Installation Instructions For Contractors

Boiler electrical connection
Circulation pump at plug
M
A
1~
L N
?
sA
Fig. 27
Circulation pump
A
Note
Connect DHW circulation pumps with standalone func-
tions directly to the 230 V ∼ supply.

Pumps with power consumption greater than 2 A or connection for HE pump

N L
C
L N
B
Fig. 28
Pump
A
To the control unit
B
Contactor
C
Separate power supply (observe manufacturer's
D
instructions)
(cont.)
sA
D
L N
L
N PE
External
ON/OFF
A
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 condition)
2(1) A~
230 V ~
Code
39:0
39:1
39:2
25