13
120 VAC primary
pump output.
Multiple ground
connections for
easy wiring.
Replaceable
fuses (2 extra
included under
cover).
3 wire
communications to
expansion board.
Power ON LED.
Dual labeled
T-stat terminals.
Compatible with
2, 3 and 4 wire
T-stats.
DHW (ZR/ZC)
closes only
during priority
call. Rated
for 120 VAC,
2 amps.
Selectable DIP
switches.
XX Closes for
heat demand
and DHW
demand. Rated
for 120 VAC,
2 amps.
LED for each
zone.
120 VAC zone
pump outputs.
120 VAC input
power connection