Event - Default zwave switch

[pdebono]

Hi All

Apologies if this request has been asked previously, but just finding my feet and have recently start using and exploring HS3

I was wondering whether you can provide assistance with creating an event in HS3 to accomplish the following:

I’m installing a Fibaro zwave double switch to control my Air-conditioning on a split level home. (ground floor and second floor)

What I am trying to achieve is that I need at all time one switch always on the ‘On” positioning to avoid the A/C running and both levels closed.

The switches will be controlling a damper (A damper is a valve or plate that stops or regulates the flow of air inside a duct pipe)

Switch 1 will do the bottom level of my house and switch 2 will do the upstairs

• If Switch 1 is On then Switch 2 can be off - OK
• If Switch 2 is ON then Switch 1 can be OFF - OK
• If both Switches 1 & 2 are OFF , then Switch 1 must be turned ON (both switch cannot be OFF) - this will protect the A/C from running and no air circulating, which can damage the A/C unit

Looking for assistance to create the above event to run in the back ground to ensure both switch are never in the OFF position

Thanks
Pat

[bsobel]

With the event system you need one event with two triggers:

If switch1 is set/changed to off
and switch 2 is off
OR
If switch2 is set/changed to off
and switch 1 is off
actions:
switch1 on

Now the downside to this is your compressor is now tied to the reliability of HS, I would highly recommend a physical relay added to the say the thermostat cooling enable wire who's relay side is driven by the switch1/switch2 outputs as well as the dampeners.