AERCO Innovation (G-10-1350 to G-11-0563) - Manual (Page 55)

Chapter 5 Innovation Series Water Heaters
GF-128
Safety Device Testing USER MANUAL OMM-0079_0B
07/21/11 AERCO International, Inc.
· 100 Oritani Dr. · Blauvelt, NY 10913 · Ph: 800-526-0288
Page 55 of 200
10. Next, check the operation of the Blocked Inlet Switch located on the inlet side of the Air/Fuel Valve
(Figure 5-4).
11. Ensure that the sheet metal panels are securely installed on the water heater and the unit is running.
12. At the rear of the unit, partially block the air inlet (Figure 5-5) with a plywood sheet or metal plate.
13. The unit should shut down and again display AIRFLOW FAULT DURING RUN.
14. Unblock the air inlet and press the CLEAR button. The unit should restart.
Figure 5-4. Blower Proof & Blocked Inlet Switch Locations
6.
7.
8.
Figure 5-5. Water Heater Rear View Showing Air Inlet Location