resistance
Senior Member
- Location
- WA
I seen an HVAC unit (Combination type). The unit requires an MCA of 44.9 amps [fuse or breaker @ 45 amps). No MOCD is provided (Meaning the name plate has it listed, but left it blank). Are you allowed to down size the OCP to 40A. Or can it be upsized to 50. Note: They sell a 45 amp breaker, but it seems the original installer installed a 40A breaker instead. Obviously (to me) the 45 is hard to come-by. Your input?