I have been upgrading my HVAC system (installing RCS TR16s) to control the 3 zones. The original zone controller (MasterTrol Mark XXXI) has a seperate main Selector Switch (and slider) to determine Heat/Cool/Fan/Auto.
Since I have an automation system, I would like to tie this switch into the automation system so when we change the switch from Heat to Fan or Cool, the thermostats know it and I don't need to go to each stat individually and change them.
I have been trying to determine the wiring for this knob, and have been unsuccessful and am wondering if anyone here has the patience or experience to figure it out. Or if someone can tell me what wires to test with a voltmeter I'd be happy to... my fear is I "blow" something by touching two wrong ones together.
All I really need to know is when the knob is switched over to Heat. Cool/Fan or Off are the alternate, and it really doesn't change the thermostats at all (all three of these will have the same TStat settings).
Link to the Switch
If you click on the link above, there is a PDF that has a very basic wiring diagram but I haven't been able to figure it out. I think 11 and 17 both indicate heat... but how do I wire this back to my automation system? All I want to know is when the knob is on Heat. If it is - then I'm in Heat mode. If it is not - it is either off, cool or fan - either way it doesn't change the thermostats.
Sorry if these are basic questions... HVAC makes me nervous - I don't want an expensive repair!
Thanks!
Since I have an automation system, I would like to tie this switch into the automation system so when we change the switch from Heat to Fan or Cool, the thermostats know it and I don't need to go to each stat individually and change them.
I have been trying to determine the wiring for this knob, and have been unsuccessful and am wondering if anyone here has the patience or experience to figure it out. Or if someone can tell me what wires to test with a voltmeter I'd be happy to... my fear is I "blow" something by touching two wrong ones together.
All I really need to know is when the knob is switched over to Heat. Cool/Fan or Off are the alternate, and it really doesn't change the thermostats at all (all three of these will have the same TStat settings).
Link to the Switch
If you click on the link above, there is a PDF that has a very basic wiring diagram but I haven't been able to figure it out. I think 11 and 17 both indicate heat... but how do I wire this back to my automation system? All I want to know is when the knob is on Heat. If it is - then I'm in Heat mode. If it is not - it is either off, cool or fan - either way it doesn't change the thermostats.
Sorry if these are basic questions... HVAC makes me nervous - I don't want an expensive repair!
Thanks!