renosteinke
Senior Member
- Location
- NE Arkansas
I've done two types of 'split' systems.
In the most common version, the indoor unit is powered independently of the outside unit, with but a thermostat wire connecting the two. They're often even different voltages, certainly different ampacities, as the indoor unit is often nothing but a fan.
The other type had the indoor unit powered by/through the outdoor unit. That is, the nameplate of the outdoor unit was for the entire system, and the circuit protection was integral to the control section of the outdoor unit.
In the most common version, the indoor unit is powered independently of the outside unit, with but a thermostat wire connecting the two. They're often even different voltages, certainly different ampacities, as the indoor unit is often nothing but a fan.
The other type had the indoor unit powered by/through the outdoor unit. That is, the nameplate of the outdoor unit was for the entire system, and the circuit protection was integral to the control section of the outdoor unit.