Weil McLain Boiler Temperature Control


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Old 12-01-18, 10:41 AM
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Weil McLain Boiler Temperature Control

I'm using a Weil Mclain Ultra Series 2 boiler for my driveway melt. How do I adjust the thermostat?

After very cold nights (below 10 degrees) I have to reset my boiler. I'm afraid the glycol mix in the tubing is freezing and the boiler shows error codes. I'm hoping the solution is raising the low setting on the boiler, currently set at 38. Does this sound correct? If so, how do I do this?

thanks!
 
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Old 12-01-18, 10:58 AM
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I'm using a Weil Mclain Ultra Series 2 boiler for my driveway melt. How do I adjust the thermostat?

After very cold nights (below 10 degrees) I have to reset my boiler. I'm afraid the glycol mix in the tubing is freezing and the boiler shows error codes. I'm hoping the solution is raising the low setting on the boiler, currently set at 38. Does this sound correct? If so, how do I do this?

thanks!
Not enough info.. I assume the boiler is used for heating the home also?

Im sure the ODR is set up with the boiler and also should have some type of mixer valve on the snow melt system.

But boiler temps should reach 180f of so in cold conditions if ODR parameters in the control are set up correct.

Glycol will not freeze afaik but will slush up.

Pics?
 
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Old 12-01-18, 11:01 AM
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Or possibly they set up with a heat exchanger?
 
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Old 12-03-18, 08:19 AM
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It's a separate boiler from the household supply.

I'm getting error code E 36 now. Any ideas what that means? Could the boiler, which is in the garage, be too cold?
thanks!
 
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Old 12-03-18, 11:50 AM
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https://www.weil-mclain.com/sites/de...pplement_1.pdf


Page 32 of the above manual says this about E 36:


36 Outlet water temperature sensor
open circuit.
This manual describes that sensor:

https://www.weil-mclain.com/sites/de...2-manual_1.pdf

7. Outlet water temperature sensor
This sensor monitors boiler outlet water temperature (system supply).
The control module adjusts boiler firing rate so the outlet temperature is
correct.
 

Last edited by zoesdad; 12-03-18 at 12:11 PM.
 

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