4 WIRE ZONE VALVES WITH DOMESTIC HW PRIORITY USING A RIB RELAY
RIB RELAY WIRING –
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WHITE/YELLOW – GOES TO C FROM TRANSFORMER AND ONE SIDE OF THE YELLOW WIRES FROM ALL THE
ZONE VALVES (BOTH HEAT AND HOT WATER ZONE VALVES)
WHITE/BLUE – GOES TO BOTH THE INDIRECT WATER HEATER AQUASTAT AND ONE YELLOW WIRE ON THE
ZONE VALVE FOR THE INDIRECT WATER HEATER.
YELLOW – GOES TO R FROM THE TRANSFORMER AND ONE SIDE OF THE AQUASTAT .
BLUE – GOES TO R ON ALL HEAT THERMOSTATS THAT ARE HELD OFF FOR PRIORITY.
24V TRANSFORMER WIRING –
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R GOES TO THE YELLOW ON THE RIB RELAY AND ONE SIDE OF THE INDIRECT WATER HEATER AQUASTAT.
C GOES TO WHITE/YELLOW ON THE RIB RELAY AND ONE YELLOW WIRE FROM ALL THE ZONES VALVES
(BOTH HEAT AND HOT WATER ZONE VALVES)
INDIRECT WATER HEATER AQUASTAT –
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ONE SIDE GOES TO R ON THE TRANSFORMER AND YELLOW ON THE RIB RELAY.
THE OTHER SIDE OF THE AQUASTAT GOES TO WHITE/BLUE ON THE RIB RELAY AND ONE OF THE YELLOW
WIRES FOR THE INDIRECT ZONE VALVE.
ZONE VALVE FOR THE INDIRECT WATER HEATER –
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ONE YELLOW WIRE GOES TO C ON THE TRANSFORMER, ONE YELLOW WIRE FROM ALL OTHER ZONE
VALVES, AND THE WHITE/YELLOW WIRE FROM THE RIB RELAY
ONE YELLOW WIRE GOES TO ONE SIDE OF THE INDIRECT WATER HEATER AQUASTAT AND WHITE/BLUE
WIRE ON THE RIB RELAY.
ONE RED WIRE IS COMBINED WITH ONE RED WIRE FROM EVERY OTHER ZONE VALVE AND CONNECTED
TO T ON THE BOILER AQUASTAT
ONE RED WIRE IS COMBINED WITH ONE RED WIRE FROM EVERY OTHER ZONE VALVE AND CONNECTED
TO T ON THE BOILER AQUASTAT
ZONE VALVES FOR THE HEATING ZONES –
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ONE YELLOW WIRE GOES TO C ON THE TRANSFORMER, ONE YELLOW WIRE FROM ALL OTHER ZONE
VALVES, AND THE WHITE/YELLOW WIRE FROM THE RIB RELAY
ONE YELLOW WIRE GOES TO TO THE CORRESPONDING THERMOSTAT W
ONE RED WIRE IS COMBINED WITH ONE RED WIRE FROM EVERY OTHER ZONE VALVE AND CONNECTED
TO T ON THE BOILER AQUASTAT
ONE RED WIRE IS COMBINED WITH ONE RED WIRE FROM EVERY OTHER ZONE VALVE AND CONNECTED
TO T ON THE BOILER AQUASTAT
THERMOSTATS –
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W GOES TO THE YELLOW WIRE OF THE CORRESPONDING ZONE VALVE
R GOES TO THE BLUE WIRE FROM THE RIB RELAY AND IT IS COMBINED WITH R ON THE OTHER HEAT
THERMOSTATS.