External controller and pump parallel on water heater circuit?
I’m doing a few solar heaters that don’t have a 120v receptacle near the heater. I usually use a 120v controller, pump and motorized check valve and plug them into a separate 120v circuit from the 240v water heater heating resistance heating circuit. In this install, I was wondering if I could install a j-box on the heater whip and use a 240v controller, pump, and motorized valve. I was told by another solar contractor this cannot be done as the NEC only allows the heater it self to be on it’s own circuit. The additional equipment that I would be adding would not push the ampacity over the limit (no where even close in fact). We are talking about and extra .33 amps on a 30 amp heater circuit that is originally pulling 18.75 amps.
Anything illegal about that?
I’m doing a few solar heaters that don’t have a 120v receptacle near the heater. I usually use a 120v controller, pump and motorized check valve and plug them into a separate 120v circuit from the 240v water heater heating resistance heating circuit. In this install, I was wondering if I could install a j-box on the heater whip and use a 240v controller, pump, and motorized valve. I was told by another solar contractor this cannot be done as the NEC only allows the heater it self to be on it’s own circuit. The additional equipment that I would be adding would not push the ampacity over the limit (no where even close in fact). We are talking about and extra .33 amps on a 30 amp heater circuit that is originally pulling 18.75 amps.
Anything illegal about that?