T TODD B. Member May 2, 2012 #1 Does anyone know when and what code edition where disconnects became a requirement for hvac equipment?
Does anyone know when and what code edition where disconnects became a requirement for hvac equipment?
rcarroll Senior Member Location Fort Collins, Colorado May 2, 2012 #2 The oldest code book I have is the '84. Disconnect required.
masterinbama Senior Member Location Huntsville Alabama May 2, 2012 #3 Required in 1956 according to the oldest handbook I own.