AERCO Innovation (G-13-1854 and above) - Manual (Page 120)

Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 9 – WATER HEATER MANAGEMENT
Page 120 of
196 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
OMM-0078_0J
PRI: 11/22/2013
Phone: 800-526-0288
GF-128
9.9.2 Sequencing Valve Operating Characteristics
The Sequencing Valve is powered by 24 VAC which is supplied from a step-down transformer
located in the Power Box of the Innovation Water Heater. The 24 VAC power output and a 0 to
20 mA control signal from the I/O Box of the Water Heater are routed to the Sequencing Valve
via a 3-pin Molex connector.
During normal Water Heater Management (WHM), a control signal of less than (<) 4 mA will
rotate the valve to the fully open (0°) position. Conversely, a control signal above 14 mA will
rotate the valve to the fully closed (90°) position. The valve position can be observed on the
scale provided on the Actuator Linkage.