
Proto-Aire EZ I/O Manual
P/N
3090249_E
16
120V GFCI Circuit Operation
The Proto-Aire EZ may include an optional GFCI convenience receptacle field wired from
dedicated circuit. This circuit will be energized even when unit power is disconnected.
LED Lighting Operation (if applied)
The Proto-Aire EZ may include LED lighting within the electrical enclosure and within the unit.
The lighting is controlled via a toggle switch within the electrical enclosure. The lighting will not
function if power is removed from unit.
Electronic Oil Level Control
Standard oil level control is powered by 208V with matching control voltage. Wired to general
compressor alarm circuit or detected by a compressor proof alarm.
Important:
Shielded cable must be used. The shield wire must be attached to the panel liner that
contains the control board it is terminating to.
Temperature Sensors & Defrost Termination Sensors & Thermostats
Use a shielded and grounded Belden Cable #8762, or equivalent between control panel and case
sensors or thermostats.