I wish to control the temp. in a small insulated area (4'X4') with a Hunter 24v thermostat. I have purchased a Omron G2R 24v relay to control line voltage (120VDC) to simply turn off and on power to a heat lamp. I can't seem to get the contacts to operate in the relay with the thermostat. What else do I need and what is the wireing diagram for this setup?