298 www.white-rodgers.com technical help residential zone valves to auxiliary circuit for operating burner and/or circulator. (note: if same trans-former powers both the auxiliary circuit and the water valve, connect auxiliary cir-cuit to terminals 1 and 3 instead of 2 and 3.) transformer internal wiring external wiring motor holding contact.. I recently hooked up an indirect water heater. I previously had (2) 3 wire, white Rodgers zone valves hooked up with no zone controller. I have (2) 2 wire thermostats. Here is the wiring diagram for the wr zone valves.
Thermostatic Controls - Wiring an Ecobee with White Rogers Zone Valve - I am trying to install a new ecobee Tstat ( EB-STATE6-01) on a 1980's hot water heating system. It has an old White-Rogers type 125-202 Tstat. The Tstat has three wires (a forth is not connected). I have traced the wires back to the zone valve. 34 www.white-rodgers.com HYDRONIC ZONE VALVES HYDRONIC CONTROLS HYDRONIC ZONE CONTROLS Two Types of Valves, 2-Wire or 3-Wire, for Zoning Hydronic Systems up to 50 PSI. 2-WIRE, 24V VALVES WITH SCREW TERMINAL WIRING PANEL AND AUXILIARY SWITCH TECHNICAL HELP Zone Valve Troubleshooting. . . . . . . . . . . See pages 298-299