Viessmann FB2B Installation And Service Instructions Manual page 17

Electrical connections
?
A aVG
%
X4 7654
X3
A Solar control module KM BUS con-
nection (connected in the delivered
condition)
B Power supply, solar control module
(connected in the delivered condi-
tion)
Plug 230 V~
sA Cylinder primary pump D (fitted
and connected)
(cont.)
!
B
N L
?
230V~
321 100 35 20 96
C External safety solenoid valve
D Cylinder primary pump
fÖ Power supply
Installation sequence
C
M
D
1~
L N N L
N L L1
? ? ?
230V~
40 53 21
(LPG)
■ Remove any existing individual
cores.
Danger
Incorrect core termination
can cause severe injuries
and damage to the equip-
ment.
17