Sequencing Valve Operating Characteristics - Watts Aerco Innovation 800 User Manual

- INTERNATIONAL
Innovation Hot Water Hot Water Boiler User Manual
CHAPTER 8 – WATER HEATER MANAGEMENT

8.11.2 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 Hot Water Boiler. The 24 VAC power output and a 2
to 10 VDC control signal from the I/O Box of the Hot Water Boiler 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 C-More.
Figure 8-7. Sequencing Valve Wiring
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
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Phone: 800-526-0288
11/15/2016 GF-128-I