2 low water cutoff (lwco) - standard c-more test – AERCO Innovation (G-14-2265 and above) User Manual

Page 95

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Innovation Water Heaters Installation, Operation & Maintenance Manual

CHAPTER 6 – MAINTENANCE

OMM-0078_0L

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

Page 95 of

206

GF-128

Phone: 800-526-0288

PRI: 11/25/2014

LWCO Capacitor Integrity Test – Continued

5. Confirm that the ohmmeter does NOT read a short.

NOTE

If the ohmmeter reads a short, the capacitor assembly needs to be replaced.
Refer to document TID-0094, provided with the 24-month maintenance kit,
for LWCO replacement instructions.

6. Remove both ohmmeter probes and reconnect the Shell Harness connector to the P5

connector on the rear of the C-More controller.

6.11.2 Low Water Cutoff (LWCO) - Standard C-More Test

Perform the standard Low Water Cutoff test using the C-More controls as described below.

Standard Low Water Cutoff C-More Test

1. Turn on the AC power to the unit.

2. Press the TEST switch on the C-More controller and confirm that the blinking "Low Water

Level" message appears on the C-More display within 4 seconds.

3. Press the RESET key, followed by the Clear button, and confirm that the "Low Water

Level" message is cleared.

6.12 SHUTTING THE WATER HEATER DOWN FOR AN EXTENDED PERIOD OF
TIME

If the heater is to be taken out of service for an extended period of time (one year or more),
complete the following instructions.

Extended Period Shut-Down

1.

Set ON/OFF switch on the front panel to the OFF position to shut down the heater’s
operating controls.

2.

Disconnect AC power from the unit.

3.

Close the water inlet and outlet valves to isolate unit.

4.

Close external gas supply valve.

5.

Open relief valve to vent water pressure.

6.

Open the drain valve and drain all water from the unit.

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