Hi All
I need help wiring a second heating zone.
The system is a peerless gas boiler controlled by a Honeywell L8148E aquastat.
When the primary zone thermostat calls for heat it turns on the boiler and the circulator.
The second zone was wired through a relay which only turns on the circulator when its thermostat calls for heat.
This is a cold start boiler so it is possible for zone 2 to call for heat and wind up pumping cold water.
I know I need another relay so I can move zone 1 circulator control out of the aquastat, but I cant figure out how to connect both t-stats to the aquastat so the boiler will start when either t-stat asks for heat, but not back feed to the other relay and kick on the other circ.
Any help would be appreciated.
Thanks in advance
Ralph.
I need help wiring a second heating zone.
The system is a peerless gas boiler controlled by a Honeywell L8148E aquastat.
When the primary zone thermostat calls for heat it turns on the boiler and the circulator.
The second zone was wired through a relay which only turns on the circulator when its thermostat calls for heat.
This is a cold start boiler so it is possible for zone 2 to call for heat and wind up pumping cold water.
I know I need another relay so I can move zone 1 circulator control out of the aquastat, but I cant figure out how to connect both t-stats to the aquastat so the boiler will start when either t-stat asks for heat, but not back feed to the other relay and kick on the other circ.
Any help would be appreciated.
Thanks in advance
Ralph.