1361 102 White Rogers zone valves, wire into a tn2 tekmar wiring center

jlv

1361 102 White rodgers zone valves require a power OFF leg to close. tn2 wiring center 313 only has two? or will it flip the power back and forth between operating?
Would be a Sunday, thought it was straight forward til I remembered power on and off.

hot_rod

Here is how we do it with the Caleffi relay boxes. It you do not have an end switch or dry contact, you may need to use a RIB relay.

Turbo Dave

RIB relays is how I have done it. If you go with a 334 zone manager, you can just jumper the 24v power supply wire, as the zone valves are independently powered.