hvac goes wireless

jim f

we had a situation with a low voltage wire in a large house in greewhich, ct. the wire was shorted and is imposible to run a new wire. after talking to some home alarm tech friends we came up with a wireless control. the wire was from an air handler to the boiler to turn on the circulator on a call for heat. here it goes, on a call for heat we power a 24 volt to energize a 24 volt coil. closes contacts to activate transmitter, which sends a signal to a reciver in the boiler room wich closes a set of normaly open contacts wich closes the circuit on the circulator board and fires up the circulator.........t-stat satisfied, kills power to the transformer wich disengages the signal to reciever which opens the circuit to the circulator borad and kills power to the circulator. whew!!
i love the use of the imagination with different trades. these are basic alarm controls and basic 24v volt relays and transformers.
looks like a patent here??
jim f.
milford, ct.

ed wallace

remotes

what a great idea do you have any idea of what parts were used like the transmitters

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jim f

we used a basic alarm transmitter and reciever.have part #'s in truck. we did a mock up at the shop to make sure it works. you do need a step down transformer to 120v-12v for reciever. the disadvantage is the transmitter runs on a lithium battery that will last 3-5 yrs. they dont make a transmitter with a dedicated power supply(go figure-thats why its called wireless)

jim f

HERES A QUICK SCHEMATIC

Glenn Harrison

I have a customer...

that has one zone in the basement controlled by a Genie garage door remote transmitter and receiver. The thermostat is apparently connected to the push button on the remote door opener transmitter, which causes a constant transmision of the signal. Then the receiver is connected to the zonevalve and zonevalve transformer. Works great and no power needed at t-stat, although it does look a little weird having a garage door opener on the wall next to the t-stat. And if your wondering, no I did not create this set-up, was done by original installation contractor several years ago.

Glenn Harrison Residential Service Tech

Althoff Industries Inc. Mechanical and Electrical Contractors

Crystal Lake, Illinois

BillW@honeywell

Wireless stats available

Try the Honeywell T8665A1002, with the W8665A1009(conventional) or the W8665E1000 (multistage & heat pump). Works with oil/gas fired, hydronic, steam & forced air systems. W8665 goes in mechnaical room & wires to the equipment, R,Rc,W,Y,G. Multistage/heatpump model has additional terminals. Stat features same as T8600 Chronotherm 4; lighted dsplay, Adaptive Intelligent Recovery, 7 day programming,programmable fan, hold and range stops, lots more. Available from any Honeywell distributor.

jim f

it worked. homeowner very pleased and dumbfounded how we resolved his problem with out ripping open the sheetrock and running a new wire.
jim f. milford, ct