Viessmann VITOCAL 100-S - Page 57

57
Connecting the power-OFF signal in heat pump cascades
A
B
C
D
E
G
X3.7
X3.6
X3.7
X3.6
X3.7
X3.6
X3.7
X3.6
X3.7
X3.6
53
54
43
44
33
43
23
24
13
14
A1
A2
?
F
Fig. 56
A
Connecting power-OFF of lead heat pump (indoor
unit, luster terminals, see chapter "Indoor unit:
Electrical terminal areas")
B
Power-OFF terminal of lag heat pump 1
C
Power-OFF terminal of lag heat pump 2
D
Power-OFF terminal of lag heat pump 3
E
Power-OFF terminal of lag heat pump 4
F
Power-OFF signal
G
Contactor relay (accessories)
Installation sequence
Power supply (cont.)
6199585
Installation