N na112233 Member Sep 24, 2005 #1 I once had a thumb rule for 480 V 1 Ton and 3 Ton HVAC units and lost it...Anyone out there have a thumb rule?
I once had a thumb rule for 480 V 1 Ton and 3 Ton HVAC units and lost it...Anyone out there have a thumb rule?
George Stolz Moderator Staff member Location Windsor, CO NEC: 2017 Occupation Service Manager Sep 24, 2005 #2 Re: hvac Yup. Thumb a ride over to the GC's trailer and demand the spec's before you run the circuit.
Re: hvac Yup. Thumb a ride over to the GC's trailer and demand the spec's before you run the circuit.