Junior_EE
Member
- Location
- New York City
Sanity check: I have an 800-ton chiller being installed. On chiller manufacturer's cutsheet, minimum circuit ampacity is 1100Amps, and MOCPD is 1600Amps. Chiller has a VFD.
1. Is it okay to size the wire to 1100Amps and the fuse to 1600Amps?
2. The VFD provides any overload protection and the fuse performs SC & GF protection, so its okay that the fuse is so much larger than the wires' ampacity, correct?
1. Is it okay to size the wire to 1100Amps and the fuse to 1600Amps?
2. The VFD provides any overload protection and the fuse performs SC & GF protection, so its okay that the fuse is so much larger than the wires' ampacity, correct?
