The E5L by RJR Controls is an aerobic control panel built for 120 VAC systems, powering both a pump and air compressor. It uses an Omron repeat-cycle dosing timer, includes a pressure switch for air monitoring, and features dual alarms (solid for high-water, flashing for aerator failure) with both alarm mute/test and pump test switches. • PUMP – 120 VAC – 20 Amp circuit breaker.• TIMER – Omron H3CRF8 repeat cycle timer.• AERATOR – 120 VAC – 20 Amp circuit breaker – Linear or Rotary.• ALARM – Solid red light for high water and flashing red light for aerator. High Water Alarm will use a N/O alarm float. Aerator alarm will use a 1⁄2# pressure switch.• Alarm Test-Mute-Run switch and Pump Test switch included.• UL listed 4X Enclosure H x W x D = 10” x 8” x 4”