Install Instructions

STEP 5 Connect thermostat wire to Cross Control
and plug into outlet.
CONNECTING MULTIPLE ZONES USING
A SINGLE THERMOSTAT
Insert Zone Index card into the back slot.
NOTE When using multiple loops with one
thermostat, jumper the whites together.
A
B
D
E
A 3-Wire Thermostats: Red to Left
White to Right
Black to Common
B 2-Wire Thermostats: Ignore common terminal block
C To optional 24V Relay
D N/O dry contact for boiler (TT) terminals
E Cross power supply
C