Honeywell Spider

[d_lee1]

I have a customer that’s has 4 units that are controlled by Honeywell spider. 1 is zoned. The other three are not. He is wanting to take the three three off and put on a conventional thermostat. Will this affect the zoned system in any way?
Thanks
Danny.

[orion242]

They are freely programmable, so anything is possible.

Would assume its not going to be an issue in most cases, but assumptions can bite you in the rear when you least expect it.

[d_lee1]

True. I have done some carrier comfort ID and had to set up a controller to broadcast time, one to be a time requester and one to be broad acknowledger. I have never had the opportunity to work on Honeywell not sure how they are set up. Our customer doesn’t want to buy the front end so they can view the system and wants a conventional stat installed but one system has 5-6 zones and needs to stay like it is.

[numbawunfela]

If you cannot take the educated approach and look at the programming to be sure... you could always take the uneducated approach and pull the other units off one morning and see what happens....
The inputs for status and such is what you will need to disconnect first. Those inputs are how the spyder can tell the disconnected units are disconnected.
Give it a few hours and make sure you disclaimer the process heavily... if you have a good relationship with the customer it might be aright....
Or get a Honeywell guy out.

[JSLLC4Life]

Have you thought about pulling the zoned one as well and replacing it with a zone panel? Might be a bit of a pain if new actuators are needed, but dumping unnecessarily complicated controls will save the owner in the long run.

[d_lee1]

Have you thought about pulling the zoned one as well and replacing it with a zone panel? Might be a bit of a pain if new actuators are needed, but dumping unnecessarily complicated controls will save the owner in the long run.

That hasn’t been discussed yet but your right. The facility guy in charge is not happy with what’s there. He wanted to start with one unit(area) first. But the way he is we will give him a quote and he will sit on it and complain for a year before he will do anything.

[orion242]

Second just ripping it all out for something standalone and stupid simple. That no good, pull comms of the units you want to peel off, watch things for an hour or two. It works, leave it for a week or two. Nothing happens, prob good to just take them out.

Sure they won't like the price to do it all. They really wont be happy if the zoning system goes sideways because it not getting OAT, fire shutdown or some other broadcasted thing that's hard to tell without programming access. Might not crop up till the season changes. Now they want you to fix it at your cost since its warranty yet... What's doing one unit at a time gonna get you here? Best case, almost nothing. Worse case a total nightmare loser and maybe the last job there.

[d_lee1]

Second just ripping it all out for something standalone and stupid simple. That no good, pull comms of the units you want to peel off, watch things for an hour or two. It works, leave it for a week or two. Nothing happens, prob good to just take them out.

Sure they won't like the price to do it all. They really wont be happy if the zoning system goes sideways because it not getting OAT, fire shutdown or some other broadcasted thing that's hard to tell without programming access. Might not crop up till the season changes. Now they want you to fix it at your cost since its warranty yet... What's doing one unit at a time gonna get you here? Best case, almost nothing. Worse case a total nightmare loser and maybe the last job there.

Good Points. Definitely need to reevaluate and discuss further. Thanks Orion.