AERCO Innovation (G-13-1854 and above) - Manual (Page 47)

Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 3 – OPERATION
OMM-0078_0J
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Page 47 of
196
GF-128
Phone: 800-526-0288
PRI: 11/22/2013
5. Upon completion of the purge cycle, the Control Box initiates an ignition cycle and the
following events occur:
(a) The Air/Fuel Valve rotates to the low-fire ignition position and closes the ignition
switch. The dial on the Air/Fuel Valve (Figure 3-6) will read between 25 and 35
to indicate that the valve is in the low-fire position.
(b) The igniter relay is activated and provides ignition spark.
(c) The gas Safety Shut-Off Valve (SSOV) is energized (opened) allowing gas to
flow into the Air/Fuel Valve.
Figure 3-6. Air/Fuel Valve In Ignition Position
6. Up to 7 seconds will be allowed for ignition to be detected. The igniter relay will be turned
off one second after flame is detected.
7. After 2 seconds of continuous flame, Flame Proven will be displayed and the flame
strength will be indicated. After 5 seconds, the current date and time will be displayed in
place of the flame strength.
8. With the unit firing properly, it will be controlled by the temperature controller circuitry. The
heater’s VALVE POSITION will be continuously displayed on the front panel bar-graph.
Once the demand for hot water has been satisfied, the Control Box will turn off the SSOV gas
valve. The blower relay will be deactivated and the Air/Fuel Valve will be closed. Standby will
be displayed.
IGNITION
VALVE POSITION
DIAL AT
25% to 35%
STEPPER
MOTOR
TO BLOWER
AIR IN