Watts Aerco INN 1060N - Sequencing Valve Operating Characteristics

Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 8 – WATER HEATER MANAGEMENT
OMM-0143_A • GF-216 • 9/6/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 134 of 170
8.10.2 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 2 to
10 VDC control signal from the I/O Box of the Water Heater are routed to the Sequencing Valve
via a 4-pin Molex connector.
During normal Water Heater Management (WHM), a control signal of less than (<) – 2 VDC will
rotate the valve to the fully open (90°) position. Conversely, a control signal above 8 VDC will
rotate the valve to the fully closed (0°) position. The sequencing valve will send a status of the
Valve (open/close) as a feedback signal (2 – 10 VDC) to the Edge Controller.
Figure 8.10.2: Sequencing Valve Wiring