General topics about all things heating, ventilation, air conditioning and refrigeration.
Is there such a thing a residential HVAC (gas heater) unit that does not have anyother fuses other than the Circuit breaker?
- New Contributor
- Posts: 9
- Joined: Fri Apr 06, 2012 3:44 pm
Why would you want a unprotected low voltage side
- Regular Contributor
- Posts: 13
- Joined: Wed Mar 28, 2012 7:07 pm
I have an older gas furnace (Trane 1989 vintage) that does not have any fusing for the low voltage control board. Older boards were not as processor/IC oriented long ago. But today most all have a fuse to protect the control board. However what they do not usually have is any protection for induced current spikes from lightning on the thermostat/control wiring.
- Most Valued Contributor
- Posts: 864
- Joined: Sat Jun 18, 2011 11:26 am
Return to HVAC General Forum