What year were line voltage disconnects first required in attics for air handler of HVAC system??
Thanks
What year were line voltage disconnects first required in attics for air handler of HVAC system??
Thanks
I’m guessing but I would think that they’ve been required for as long as they’ve been installing air handlers in attics.
When did they 1st start requiring a toilet inside the house?
(Both questions are irrelevant.)