54
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. 54
A
Power-OFF terminal of lead heat pump (indoor unit
luster terminals, see chapter "Indoor unit: overview
of connections")
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.)
5790 931 GB
Installation
