American Standard VAPORSHIELD Residential 30 Скачать руководство пользователя страница 18

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WARNING:

DO NOT OPERATE APPLIANCE UNTIL ALL LEAKAGE IS CORRECTED.

DO NOT USE OPEN FLAME OR ANY KIND OF SPARK TO CHECK FOR LEAKS.

PIEZO ELECTRIC

IGNITER SYSTEM

The piezo electric igniter system is part of the VAPORSHIELD Safety System and consists of the igniter button,
electrode and wire.The pilot is ignited by an electric spark generated when the igniter button is pressed. The spark
gap of 0.125 inch is set when the electrode is installed at the factory.

(See Figure 14)

. Use only factory authorized

VAPORSHIELD Safety System for replacement.

TESTING THE IGNITER SYSTEM
Turn off the gas to the water heater at the manual gas
shut - off valve. Through the burner view port watch the
electrode tip while activating the igniter. A visible spark

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touch the igniter or igniter wire. If no spark is visible, check
the wire connections. Replace the igniter if defective.

Important: The gas control valve/thermostat is a standard valve:
On the gas control valve/thermostat turn the temperature
dial clockwise to its lowest setting.Turn the gas control knob
clockwise to the “OFF” position (Page I 0”Gas Control”).
Turn off the gas at the manual shut-off valve on the gas supply
pipe (Figure 13 - Page 11 or Figure 4 - Page 4).
Drain the water heater. Refer to the section of “Draining and
Flushing” on page 14 and follow the procedure.
Disconnect the igniter wire from the igniter button. Remove
the igniter button. Remove igniter bracket. Disconnect the
thermocouple, the high temperature cut off switch, pilot and
tube and manifold tube at the thermostat.
Note: L.P. gas system use reverse (left-hand) threads on the
manifold tube.
Refer to “Gas Piping” (Figure 4 - Page 4) and disconnect the

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pipe from the gas valve/thermostat.

Important:

When removing the gas control valve/thermostat

do not use pipe wrench or vise the grip body. Do not
insert any type of blunt instrument into the inlet or outlet
connections. Using these type tools may result in damage to
the gas control valve/thermostat.
Turn the gas control valve/thermostat counterclockwise.
Remove the gas control valve/thermostat.

To replace the gas control valve/thermostat, reassemble in
reverse order:

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valve that screws into tank.

Be sure to remove the pilot ferrule nut from the new gas
control valve/thermostat.

Turn gas supply on and check for leaks. Use a chloride-free
soap and water solution

(bubbles forming indicate a leak)

or other

approved method.

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activating the water heater. Follow the “Lighting Instructions”
on page 10.

If additional information is required, contact the Service
Department on the phone number shown on the front of this
manual.

FIGURE 14