8 air flow fault tests – AERCO Innovation (G-13-1854 and above) User Manual

Page 66

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Innovation Water Heaters Installation, Operation & Maintenance Manual

CHAPTER 5 – MODE OF OPERATION

Page 66 of

196

AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913

OMM-0078_0J

PRI: 11/22/2013

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 (INN1060 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
VALVE

LOW GAS
PRESSURE
SWITCH

HIGH GAS
PRESSURE
SWITCH

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