I need the wiring diagram for a Robertshaw grayson 70008DE-S7B, 3E0-500-872 Reg No Reg 24VAC 0.55 Total Amp Gas Control valve. I have a Radiant Heater and need to know what terminal on the top get the Ground and what gets the 24 V from the control mondule. There are 3 terminals on top of the unit. Any help would be greatly appreciated
Make : Robert GordonModel : CVE
Checked out all of the switches, the control module, the pressure sensor, and the ingnitor.
Hello, are the screws colored and what colors?
There are no screws on top of the unit - just three blade connectors. From a top view you have one blade at 10:00 position and two blades (one at 3 o'clock and one at 9'oclock). I am cetrain that the one at 3 9'clock is Ground. I am 80% sure that the one at 9 o'clock is 24 VAC from the controller - but not positive. On the back there is a valve that I have not removed the wiring as of yet
if you have an ohm meter check each spade with one probe of the meter and the other touch to any metal body and if you get a reading you have found the ground connection. The other two terminals be be your 24v connection.....one is and one is nuetral from the transformer
35 years hvac/r master, awarded inventor