Trane Gas Package Unit Won’t Ignite- HVAC
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- Опубліковано 25 сер 2024
- While performing fall/winter service I found this Trane unit not firing. Had a senior tech explain negative gas pressures. We found the problem and got unit up and running while doing the regular service.
Why is it always negative? Is the inducer motor causing the negative pressure?
Yes the inducer motor is essentially causing the negative pressure (-3 in this video) and once the gas enters (positive) it brings that negative pressure closer to 0 (-.22 in video). Also note this is for a commercial unit and not a residential gas furnace.