[an error occurred while processing this directive]

Temp. overshoot

[ Follow Ups ] [ Post Followup ] [ Boiler Room Residential and Home Forum #2 ] [ FAQ ]

Posted by Rick on March 27, 2005 at 10:45:55:

I have a 8 year old gas WM boiler operating our under-joist radiant and DHW with high limit at 165F for the boiler.
Everything is fine right up until the flame goes off when the temp/pressure gauge shows temp. hits 165F. However, temp gauge continues to shoot up as high as 200F and normally only starts to decline at around 190-195. The circulator is working. Why such a big 30F disparity?
If the gauge were broken, it wouldn't have shown the right cut-off at 165F. Or if the aquastat were broken, the guage wouldn't have shown the correct cut-off at 165F. I don't understand and am worried about the IPEX tube which states it can only handle 179F max.
Any idea?

Follow Ups:

Re: Temp. overshoot HeatPro 11:02:12 3/27/2005 (6)
- Re: Temp. overshoot rick 16:06:39 3/27/2005 (5)
  - Re: Temp. overshoot HeatPro 16:44:36 3/27/2005 (4)
    - Re: Temp. overshoot Rick 00:23:50 3/29/2005 (3)
      - Re: Temp. overshoot HeatPro 01:04:30 3/29/2005 (2)
        
        Re: Temp. overshoot Rick 21:46:52 3/29/2005 (1)
        
        Re: Temp. overshoot HeatPro 22:01:08 3/29/2005 (0)

Post a Followup

Name:
E-Mail:

Subject:

Comments:
: I have a 8 year old gas WM boiler operating our under-joist radiant and DHW with high limit at 165F for the boiler. : Everything is fine right up until the flame goes off when the temp/pressure gauge shows temp. hits 165F. However, temp gauge continues to shoot up as high as 200F and normally only starts to decline at around 190-195. The circulator is working. Why such a big 30F disparity? : If the gauge were broken, it wouldn't have shown the right cut-off at 165F. Or if the aquastat were broken, the guage wouldn't have shown the correct cut-off at 165F. I don't understand and am worried about the IPEX tube which states it can only handle 179F max. : Any idea?

[ Follow Ups ] [ Post Followup ] [ Boiler Room Residential and Home Forum #2 ] [ FAQ ]