Years ago I bought a Famo Inc. ComfortMate Model CM001-T remote control (wireless) thermostat system (Xmitr & Rcvr). I
installed it (Rcvr) on my oil fired hot water heating system's L8148 aquastat and it has been working fine. It
replaced a 3 wire 24vac hard wired mechanical thermostat. I can move the Xmitr to any place in the 3 rooms of a zone
and that spot stays at 68 degrees or whatever I set.
I misplaced the instructions and schematics and can find no reference to this device or the manufacturer on the
internet. Does anyone know of it?
Current wireless thermostat manufacturers sell units like this for $200 to $300. I didn't pay more than $60 for the
ComfortMate.
Has anyone here built such a device?
It seems simple enough. Use the original thermostat to start/stop a transmitter (350 MHZ) with the receiver about 250'
away to actuate a DPST relay (like R845A or R8222). When the xmitr sends a signal to the receiver it's relay energizes
with one set of contacts actuating the 24 vac controls in the Aquastat of the boiler and the other set of contacts
actuating the circulating pump.
I have the relay and the thermostat.
Thanks
installed it (Rcvr) on my oil fired hot water heating system's L8148 aquastat and it has been working fine. It
replaced a 3 wire 24vac hard wired mechanical thermostat. I can move the Xmitr to any place in the 3 rooms of a zone
and that spot stays at 68 degrees or whatever I set.
I misplaced the instructions and schematics and can find no reference to this device or the manufacturer on the
internet. Does anyone know of it?
Current wireless thermostat manufacturers sell units like this for $200 to $300. I didn't pay more than $60 for the
ComfortMate.
Has anyone here built such a device?
It seems simple enough. Use the original thermostat to start/stop a transmitter (350 MHZ) with the receiver about 250'
away to actuate a DPST relay (like R845A or R8222). When the xmitr sends a signal to the receiver it's relay energizes
with one set of contacts actuating the 24 vac controls in the Aquastat of the boiler and the other set of contacts
actuating the circulating pump.
I have the relay and the thermostat.
Thanks