Re: How can I locate an electric heat relay?
Sounds to me you have electric baseboard heat ?
Typically the thermostats for them would be line voltage --- either 120vac or 240vac.
Wiring is straight forward for line voltage thermostats --- supply feed goes to the line side and the baseboard heater connected to the load side. Switching on/off is done inside the thermostat. ---- No external relays involved.
Now, if for some reason you are using low voltage 24vac thermostats then I can see external relays being used.
If that's the case there's a need to have a step down transformer ( 120vac primary -- 24vac secondary ) hard wired somewhere and wiring from the transformer supplying 24vac to the thermostats. That 24vac output from the thermostat would energize the coil of a relay to open or close contacts to switch the 120 /240vac on and off for the baseboard heaters.
A guess would be the relays are either located in the device box where the thermostats and wire connections are.
Perhaps theres a junction box located near the breaker panel with the relays , transformer and associated wiring.
Of course this is all sight unseen.
There are "wire tracers " available to purchase.
However, if you can't readily find or see the relays then your wiring is not proper. Any junction or splice has to be readily accessable ( not hidden) and enclosed inside an approved box --- which includes relays switching line voltage.
Last edited by canuk; 01-25-2011 at 07:52 PM.
"" an ounce of perception -- a pound of obscure "