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Old 12-11-2011, 02:40 PM   #1
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NTI NY Thermal Trinity Gas Boiler


I have a NTI Trinity T-150 boiler that was installed around 2004-2005. It has worked well in the past but it is now getting the ASC message. The air switch has been replaced and is testing good. The problem seems to happen when the blower shuts down and goes into circ mode and tries to start up again. This is when the asc message seems to appear and the boiler will not start back up on its own.

Could this be a Sentry 2100 controller issue, a dirty unit, or something else?
How many years can you expect from a busy T-150 boiler?
Is this T150 unit worth fixing and putting money into or go with an upgrade?
I have heard the older models have had problems?
This T-150 boiler was installed against a far left wall so for cleaning this is not ideal.

This boiler runs DHW, fan coil, and infloor heating.
The HI setting on the Sentry controller is set at 190. This runs the fancoil at 190 and infloor at 140. Is this ok for the boiler to run at 190 when the infloor is calling for 140? Does this not decrease the efficiency and make the boiler run hotter?
Do all boilers only have the DHW(LO) and HI setting?

Thanks
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