Kenmore 153.33264, 153.33262 manual Water Heater Operation, Checking the Draft, Burn Hazard

Water Heater Operation

Figure 29 below shows the water heater's sequence of operation when a call for heat is initiated. The ignition control module wilt attempt to light the burner three times. If the ignition control does not detect ignition it wilt enter lockout mode, indicated by display flashing status code (see status code 3 page 38 and/or status code 8 page 39).

SEQUENCE OF OPERATION

I

for 4 second trial for ignition

and fan will turn on.

I as valve/thermostat will open I

Checking the Draft

Burn Hazard

Do not touch vent.

Doing so can result in burns.

After successfully lighting the water heater, allow the unit to operate for 15 minutes and check the draft hood relief opening for proper draft (Figure 30). Make sure all other appliances in the area are operating and all doors/windows are closed when performing the draft test. Pass a match flame or smoke around the relief opening of the draft hood. A steady flame or smoke drawn into the opening indicates proper draft.

relay check (relay clicks will be

I heard)as valve/thermostat. will do a

J.

I setDisplaypoint willduringshowcalltemperatureforheat.

1

I raft Blower is energized.

I

I

I

1

I Main burner flame is detected by flame sense rod. Air intake fan and main burner will continue to operate until water temperature inside the tank reaches

temperature set point.

1

energized and air intake fan continues for a post purge time

Flue Products Vented

to Ouside of Building

Dilution Air

Hood _ ,_ilution Air

O'a"

_ Match

4.

switch operation and start a 5 second pre-purge, then air

I intakeystemfanwillwillverifyturn pressureoff.

1

warm up period. "IGN" will

show on display.

I gnitor will start a 12 second

I

I

I

I as valve/thermostat is de- I of approximately 5 seconds.

.I.

mode.

I ater heater returns to standby I

Dilution Air L.

(Relief Opening)

Air is drawn in for

combustion. Keep area clean and free from combustibles

and flammable vapors.

FIGURE 29.

"6" Maximum

Air Gap

Drain

Outer Door

The water heater must be installed according to all local and state codes or in the adsence of local and state codes, the "National Fuel Code"' ANSI Z223,1(NFPA 54)- current edition.

FIGURE 30.

If the flame flutters or is blown out, combustion products are escaping from the relief opening. If this occurs, do not operate the water heater until proper adjustments or repairs are made to the vent pipe system and/or air supply requirements.

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