Install Instructions
Manuals
Brands
Caleffi Manuals
Heating Supplies
4 Zone Expandable Switching Relay w/ Priority
11
12
13
14
15
16
17
18
19
20
8
T
T
R
W
C
T
T
com
power
zone
transformer
N
L
L
RELAY 1
C
N/O
N/C
C
N/O
N/C
RELAY 2
Caleffi
!
single zone relay
L
N
A1 - Single thermostat
Hydronic diagram is for illustration purposes only
, some components have been r
emoved for simplicity
.
1
...
...
10
11
12
13
14
...
...
46
