Aerco INN600 - Air Flow and SSOV Proof of Closure Tests

Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 5 – SAFETY DEVICE TESTING
Page 72 of 206 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0078_0L
PRI: 11/25/2014 Phone: 800-526-0288 GF-128
Flame Fault Tests – Continued
10. Since the manual gas shutoff valve is still closed, the unit will shut down and display
FLAME LOSS DURING IGNITION following the IGNITION RETRY cycle.
11. Open the valve previously closed in step 8.
12. Press the CLEAR button. The unit should restart and fire.
Figure 5-3. Manual Gas Shut-Off Valve Location (INN600-1060 Gas Train)
5.8 AIR FLOW FAULT TESTS
These tests check the operation of the Blower Proof Switch and Blocked Inlet Switch shown in
Figure 5-4.
Air Flow Fault Tests
1. Disable the blower output drive voltage as follows:
(a) Press the MENU key until CONFIGURATION MENU is displayed.
(b) Press the ▲ arrow key until the ANALOG OUTPUT function is displayed, then
press the CHANGE key.
(c) Press the ▼ arrow key until OFF is displayed, then press the ENTER key.
2. Start the unit in the Manual Mode at a valve position of 25%.
3. The unit should shut down and execute an IGNITION RETRY cycle by performing the
following steps:
(a) The unit will execute a 30 second re-ignition delay and display WAIT RETRY
PAUSE.
(b) The unit will then execute a standard ignition sequence and display WAIT
IGNITION RETRY.
MANUAL
SHUTOFF
VALVE
SSOV
TO
AIR/FUEL
LOW GAS
PRESSURE
SWITCH
HIGH GAS
PRESSURE SWITCH