Viessmann VITOCAL 200-G Installation And Service Instructions Manual page 40

Installation sequence
Electrical connections
Luster terminals
Set the required parameters during com-
missioning; see from page 66.
Signal and safety connections
Terminals Function
F1 MCB/fuse 6.3 A (slow)
X1 Earth conductor X1.?
X2 Neutral conductor X2.N
X3 ■ Power supply terminals
of control unit "L1" and
auxiliary components
■ Switched phase L1:
X3.1
X3.1 Switched phase
X3.3 Jumper
X3.4
X3.6 Power-OFF
X3.7
G
40
(cont.)
Explanation
Terminals for earth conductor of all asso-
ciated system components
Terminals for neutral conductor of all as-
sociated system components
Terminals for signal and safety connec-
tions
Note
Switched phase can be used for on-site
system components. Observe max. out-
put.
Never remove!
Requires floating N/C contact:
■ Closed: No blocking (safety chain has
continuity)
■ Open: Blocking active
■ Breaking capacity 230 V~, 0.15 A
If a power-OFF contact is connected, no
jumper should be installed.