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HELP!

ernie_3
ernie_3 Member Posts: 191
in THE MAIN WALL
I'm trying to integrate a CAS-4 w' a CAC-24 for two 24v fgas furnaces. They both have Honneywell 'Smartvalve'
gas valves. Schematic is confusing because there is a constant 24v to the gas valve. Any suggestions?

Comments

  • Unknown
    Unknown
    Ernie there is also an

    interrupted 24 volts to SmartValve that goes thru the safeties. Wire the end switch into that circuit. Are these furnaces "twinned up" and if so do they have an Electronic Fan Timer or an Integrated control. If you give me some numbers I may be able to put a wiring diagram together. Also is there one thermostat bringing in the two furnaces?
  • ernie_3
    ernie_3 Member Posts: 191
    Yes

    We ended up interrupting the pressure switch, so when that makes the CAS makes. I was a little confused because everyone I've done interlocked B/4 the gas valve and CAS would pull in B/4 the fan assist would start. Thank you for the E-mail, didn't get it till I got home, (posted from the HO computer).
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