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FLAME SENSOR

Complete this procedure at least once during the heating season.

9. Install igniter retaining screw and tighten snugly.  DO

NOT OVERTIGHTEN.  Overtightening can cause cracks in

base of igniter, possibly leading to future igniter failure.

IMPORTANT

Do not handle the igniter by the igniter element.  Doing

so may cause premature igniter failure.  Handle the

igniter by its ceramic base, or by its leads.

Center the igniter shield over the igniter element,

making sure the shield does not touch the igniter

element, otherwise igniter damage will occur when the

igniter is energized..

Do not over tighten the igniter mounting screw.

Overtightening will crack the base of the igniter, leading

to premature failure.

IGNITER

SHIELD, IGNITER

SCREW

WASHER, LOCK

MALE CONNECTOR

FEMALE CONNECTOR

SCREW

BRACKET, IGNITER

BURNER, CASTING

SENSOR, FLAME

BURNER
FLAME

BURNER
CASTING

FLAME SENSOR

3/8 TO 1/2 IN.

1. To help maintain proper flame sense, the sensor

should be removed from its mounting bracket and its

metal rod cleaned using steel wool or emery cloth.

Rub briskly to remove build up of dust, dirt and

aluminum oxide.  Be careful not to fracture the

ceramic base of the sensor.  See Fig. 12 for sensor

location.

FIG. 12

2. Check the flame sensor’s ceramic base for any

cracks.  If cracks are found, replace the sensor.  

IMPORTANT

For proper flame sense operation, the flame sensor tip

must be properly positioned within the burner flame.

Normally 12.7 mm to 19 mm is sufficient.  See Fig. 13.

FIG. 13

The high limit switch should be tested a minimum of once

per year when the heater is given a thorough cleaning.

1. Disconnect the heater from its electrical supply.

2. Remove the high limit switch from the heat chamber.

3. Holding the switch by one of its mounting legs or

electrical terminals, apply a small flame only to the

sensing surface on the back of the switch.  

Be

careful not to melt the plastic housing of the switch

when conducting this test.

4. Within a minute, you should hear a “pop” coming

from the switch, which indicates the contacts of the

switch have opened.

5. Allow the switch cool down for about a minute before

firmly pressing the red reset button on the switch.

6. Check for electrical continuity across the switch

terminals to make sure the contacts have closed.

7. Reinstall the switch back into the heater.  Reconnect

the heater to its electrical supply.  Start the heater

and check for proper operation.

FIG. 14

TESTING THE MANUAL RESET HIGH LIMIT SWITCH

WARNING

Fire Hazard

Do not operate the appliance with the high limit switch

bypassed.  

Operating the heater bypassed high limit switch may

lead to overheating, possibly resulting in a fire, with

subsequent damage to the heater, building damage, or

loss of livestock.

RESET BUTTON

SENSING
SURFACE

TERMINAL

FLAME

MOUNTING
LEG

15

12.7 MM to 19 MM

Summary of Contents for AW230

Page 1: ...ating heater for the heating of agricultural animal confinement buildings The heater is approved for either indoor or outdoor mounting If you are considering using this product for any application oth...

Page 2: ...ury or loss of life GENERAL HAZARD WARNING Failure to comply with the precautions and instructions provided with this heater can result in Death Serious bodily injury or burns Property damage or loss...

Page 3: ...cal L B White distributor or the L B White Co Inc for assistance or if you have any questions about the use of the equipment or its application The L B White Co Inc has a policy of continuous product...

Page 4: ...as Gas Model Ventilation Air Required to Support Combustion 1 83 Meters Reference AS1596 and AS5601 Gas Installations Burner Manifold Pressure Electrical Supply Volts Hz Phase Amp Draw Starting Amps I...

Page 5: ...ss and difficulty in breathing Symptoms of improper combustion affecting livestock can be disease lower feed conversion or death Asphyxiation Hazard Some people cannot smell well Some people cannot sm...

Page 6: ...e fuel gas containers or fuel supply hoses anywhere near the blower outlet of the heater 8 Do not block air intakes or discharge outlets of the appliance Doing so may cause improper combustion or dama...

Page 7: ...f pipe compound before further tightening Further tighten the gas connections as necessary to stop the leak After all connections are checked and any leaks are stopped turn on the main burner Stand cl...

Page 8: ...ts found in performing any of the service or maintenance procedures must be eliminated and defective parts replaced immediately The heater must be retested by properly qualified service personnel befo...

Page 9: ...mounted in a vertical position Make sure pipe thread compound that is resistant to both L P and natural gas is used in making all connections Check all connections for gas leaks using approved gas lea...

Page 10: ...ring of a thermostat must be done by an electrician or someone properly qualified b The thermostat may use 18 gauge 2 wire cord to handle the low voltage being supplied to the thermostat from the tran...

Page 11: ...tance in troubleshooting Only qualified and properly trained personnel shall service or repair the heater 7 On a call for heat the motor will start up and run for five 5 seconds and then stop This pre...

Page 12: ...d the area between the heat chamber top and inside case is also free of dust Additionally the flame sensor should be removed and cleaned according to the service instructions within this Owner s Manua...

Page 13: ...ITCH ARM FANWHEEL PIVOT POINT OF FLAPPER EDGE OF FLAPPER PIVOT POINT OF FLAPPER FLAPPER 31 7 MMTO 34 9 MM 1 Shut off the gas supply to the heater 2 Disconnect the heater from its electrical supply 3 M...

Page 14: ...nlet pressures to gas control valve are shown in the heater specifications table See page 4 and on the heater s dataplate The inlet pressure may need adjustment as necessary to achieve proper manifold...

Page 15: ...sensor IMPORTANT For proper flame sense operation the flame sensor tip must be properly positioned within the burner flame Normally 12 7 mm to 19 mm is sufficient See Fig 13 FIG 13 The high limit swi...

Page 16: ...it will relate directly to problem solving provided by the flow charts The ignition control module is self diagnostic The red light on the module will flash a specific pattern depending upon the probl...

Page 17: ...Switch Closes Gas Control Valve Opens Ignition Occurs Igniter stays Powered up for 6 seconds after Ignition Flame Proving occurs in 6 seconds Igniter Shuts Off Gas Valve Stays Open Room Warms to Desir...

Page 18: ...ly Requirements Provide Proper Voltage From Electrical Supply Check Circuit Breakers in Building Electrical System Check Power Cord for Continuity Replace Thermostat Replace Selector Switch Are 24 Vol...

Page 19: ...Rapid Flash Reverse Polarity Have Electrician Check Neutral and Hot Wire Connections that Outlet Heater is Connected to Long Flash Two Seconds On Two Seconds Off Repetitively for 15 Minutes Heater ha...

Page 20: ...or Check for Housing Alignment Tighten Set Screw s on Fan Make sure Set Screw s are Tightened Against Flat s of Motor Shaft Yes Clean the Fan Wheel with Compressed Air or Soft Brush Defective Motor or...

Page 21: ...is read adjust outlet pressure as necessary B If gas pressure is not read replace the control valve Defective Igniter Perform Continuity Check and Replace Igniter If Necessary Clean Flame Sensor with...

Page 22: ...wire only to determine if part is defective Replace the part IMMEDIATELY or do not operate unit until properly serviced NEVER operate a heater with a jumper wire used to bypass a safety device as a te...

Page 23: ...ons Verify Proper Voltage with a Voltage Tester Contact a Qualified electrician if Proper voltage is not Present No No Yes Is Proper Voltage Supplied to Selector Switch from Power Cord No Problem Moto...

Page 24: ...SOLENOID S TRANSFORMER 240V 24V L E D INDICATOR GROUND POWER CORD IND L1 HSI HSIG L2 W PSI FSI GV PSO FSG C HSI CONTROL SELECTOR SWITCH HEAT OFF VENT TRANSFORMER FOR OPTIONALTHERMOSTAT CONTROL INSTAL...

Page 25: ...oard which sends and receives voltages to various controls in an automatic hot surface ignition system An important safety feature of the control board is that it will shu down the entire heater there...

Page 26: ...Parts Identification PARTS SCHEMATIC 26...

Page 27: ...2 Chamber Heat 20024 23 Door Right 20757 24 Latch Assembly for case assembly and control box 20959 25 Case Assembly with Doors and Latches 21286 26 Hinge 05868 27 Door Left 20756 28 Harness 9 wire 9 m...

Page 28: ...ERCORD EXIT HOLE 21008WARNING WASHDOWN INSTRUCTIONS 20575 WIRING DIAGRAM 21012WARNING FIRE AND EXPLOSION HAZARD INSIDE OF MOTOR END ACCESS DOOR 21280 BADGE AUSTRALIAN LISTED 20453WARNING HOT SURFACES...

Page 29: ...and Transformer to Wire Nut Brown 19 cm 20662 Wire Toggle Switch to Wire Nut Blue 15 cm 20663 Wire Toggle Switch to Transformer Blue 14 cm 20664 Wire Burner to Ground Green Yellow 168 cm 21192 Wire Ga...

Page 30: ...ate of purchase by the end user Warranty is automatic if a component is found defective within 12 months of the date code marked on the part If the defect occurs more than 12 months later than the dat...

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