18
CONNECTIONS
EWPlus 902 TERMINALS
OUT1 regulator relay OUT1
N-L
Power Supply (115V
a
or 230V
a
)
A
TTL input
EWPlus 961 TERMINALS
Compressor relay
N-L
Power Supply (115V
a
or 230V
a
)
A
TTL input
EWPlus 961
EWPlus 902
N
L
3
6 7
9 10
D
.I.
Power Supply
4VA max
Pb1
4 5
11
(thermostat)
LOAD
OUT1
A
TTL
EW
PLUS
902
N
L
2 3
9 10
D
.I.
Pb1
4
11
(A)
(thermostat)
A
TTL
EW
PLUS
961
Power Supply
4VA max