Product Manual — Doc. 9368A DIN-1TSTAT8 • 13
Zone Valve and Main Valve connections (1-8, MAIN)
1. Wire the eight zone valves to the 1-8 terminals on the thermostat. Connect one zone valve
per heat zone. Each zone valve must have a corresponding temperature sensor connected.
2. Wire the main control valve to the MAINterminal on the thermostat. Do not connect a
zone valve to the MAINport.
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For 2-wire, normally open valves, connect the NO terminal on the thermostat to the
OPEN terminal on the valve.
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For 3-wire valves, connect the NO terminal on the thermostat to the OPEN terminal
on the valve and then connect the NC terminal on the thermostat to the CLOSE
terminal on the valve.
For zone valve specifications and wiring, refer to the documentation provided by the valve
manufacturer.