Thermostat for white rogers 3 wire zone valves

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Old 11-15-13, 07:34 AM
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Thermostat for white rogers 3 wire zone valves

I bought a Honeywell thermostat that claimed to be compatible with hot water systems, however it was not. My system has white rogers zones, and they have wiring that goes to a mounted grey box (my guess is its a controller). I also have white rogers mercury thermostats that control the zones (They are 3 wire zones valves). I'd like to upgrade to non programmable digital ones at the least, but if possible id like programmable. Do i need new white rogers thermostats to match the zones? or will any work that are compatible with 3 wire zones? I'm always skeptical when i find one online that it will actually work.

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Old 11-15-13, 09:02 AM
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Your zone valves... what model are they?

My system has white rogers zones, and they have wiring that goes to a mounted grey box (my guess is its a controller)
Let's see a picture of that box, inside too, and any make/model information you can find on it.

I believe that the Honeywell FocusPro 6000 series will work with three wire zone valves... but don't buy yet because I'm not sure what that gray box is doing for you.
 
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Old 11-17-13, 08:21 AM
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I have uploaded some pics of the zone valves, and the grey box. It will show the configuration of the valves, and related items.

Zone Valves Photos by cpentasuglia | Photobucket
 
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Old 11-17-13, 08:57 AM
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Can't read the label on the zone valve.

What is inside the box? or a part/model number will do.
 
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Old 11-18-13, 04:20 AM
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I have found the serial on the zone valves.

F19-0097 - White Rodgers F19-0097 - 3 Wire Motor Assembly For Zone Valves

I haven't had a chance to look at that box yet, however i did look at it a little bit more. The pump is wired off of that grey box (as well as the zone valves), so I'm guessing as a zone is signaled to open, it turns the pump on?
 
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Old 11-18-13, 06:41 AM
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Those are the 1311 series valves.

See this thread for an option to use 2 wire thermostat to control them, it involves wiring an additional relay... which is actually pretty easy, all 24VAC wiring, and the relay should only cost around $10 or so.

http://www.doityourself.com/forum/bo...ml#post2189777

This relay would work:
(note that the photo with the webpage shows a SPST model, but the part number is for the SPDT model which is what would be needed)

90-293Q - White Rodgers 90-293Q - Fan Relay, Type 84, 24 VAC Coil, SPDT. Coil Data: 90 Ohms DC Resistance, 125 mA (Nominal), 3 VA (Nominal), 4 VA (Inrush)

I'm guessing as a zone is signaled to open, it turns the pump on?
Likely yes... there may also be another set of contacts that are firing the boiler.
 

Last edited by NJT; 11-18-13 at 11:10 AM.
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Old 11-18-13, 10:37 AM
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This one says 3 wire... same manufacturer...

1F80-0471 - White Rodgers 1F80-0471 - Digital Thermostat - PexSupply.com
 
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Old 11-18-13, 06:00 PM
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Great. I could only find a non-programmable for a decent price, but both of those are decent. Right now i have old mercury ones, so it's time to upgrade.
 
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Old 11-18-13, 06:16 PM
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Thought you wanted programmable?

If you go to pexsupply and scroll through (search on White Rodgers) you'll get a couple hundred items, but I think I saw that same thermostat in non-programmable as well.
 
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Old 11-19-13, 04:49 AM
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Yeah i do, sorry for the confusion. What i meant was that i have having trouble finding a programmable one for a good price that would be compatible with my system. I think i may go with the
1F80-0471 - White Rodgers 1F80-0471 - Digital Thermostat - PexSupply.com

that you included below.
 
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