AERCO Innovation (G-13-1854 and above) - Manual (Page 46)

Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 3 – OPERATION
Page 46 of
196 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
OMM-0078_0J
PRI: 11/22/2013
Phone: 800-526-0288
GF-128
3. With all required safety device switches closed, a purge cycle will be initiated and the
following events will occur:
(a) The Blower relay energizes and turns on blower.
(b) The Air/Fuel Valve rotates to the full-open purge position and closes purge
position switch. The dial on the Air/Fuel Valve (Figure 3-4) will read 100 to
indicate that it is full-open (100%).
(c) The VALVE POSITION bargraph will show 100%.
Figure 3-4. Air/Fuel Valve In Purge Position
4. Next, the blower proof switch on the Air/Fuel Valve (Figure 3-5) closes. The display will
show Purging and indicate the elapsed time of the purge cycle in seconds.
Figure 3-5. Blower Proof Switch
STEPPER
MOTOR
TO BLOWER
AIR IN
PURGE
VALVE POSITION
DIAL AT 100%
BLOWER PROOF
SWITCH
OUTLET TO BLOWER
AIR/FUEL
VALVE