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ADAPTER

INLET

BUSHING

GROUND LEAD

VALVE GROUNDING AND
ATTACHMENT SCREW

INJECTOR 
BODY

ADAPTER

GAS CONTROL 
      VALVE

GAS CONTROL VALVE

1. Disconnect the heater from its electrical supply.

2. Close fuel supply valves to heater.

3. Remove dust filter and filter sleeve.

4. Brush or blow off any dust in vicinity of gas control

valve.

5. Disconnect the gas hose from hose adapter at inlet of

gas control.

6. Using the appropriate wrench, remove bushing with

hose adapter from control valve inlet.  See Fig. 14.

7. Using appropriate wrenches, hold the gas valve

adapter at the outlet of the gas control in place while

loosening the control valve body from the adapter.

8. Remove the control box cover.

9. Loosen the nut of the water tight connector through

which the ground and power supply leads of the

control valve pass.

10. Disconnect the valve’s electrical leads from the

ignition module.

11. Route the valve leads individually through this

connector.

12. Save the water tight connector nut from the valve

leads.  This same nut will be slid over the leads of the

replacement valve and used to create a water tight

connection at the control box.

13. Loosen the screw at the injector body and disconnect

the valve’s electrical leads.  See Fig. 14.

FIG. 14

14. Reverse these procedures for valve installation.

17

WARNING

Fire H

Hazard

Do not operate the heater with the high limit switch

bypassed.  

Operating the heater with a 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.

TERMINAL

MOUNTING LEG

RESET BUTTON

SENSING SURFACE

FLAME

ATTENTION

This heater is equipped with a manual reset high limit

switch.  Its purpose is to disconnect the electrical

supply to the ignition control board in the event of an

overheat condition.

An overheat condition is normally caused by:

--  Excessive fuel gas pressure

--  Heater not being routinely cleaned

--  Heater not properly hung.  (Control end is 1º to 5º

down from horizontal.  See page 8.

The high limit switch should be tested a minimum of once

per year or anytime the heater is taken down for servicing.

Refer to the following testing instructions.

1. Disconnect the heater from its electrical supply.

2. Remove the high limit switch from the control box.

3. Holding the switch by one of its mounting legs, apply

a small flame only to the sensing portion on the back

of the switch.  Be  ccareful  nnot  tto  m

melt  tthe  pplastic

housing oof tthe sswitch w

when cconducting tthis ttest.

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 before firmly pressing the

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. 13

HIGH LIMIT SWITCH

Summary of Contents for I17

Page 1: ...may have call us toll free at 1 800 345 7200 Owner s Manual and Instructions Spark Ignition Infraconic Agricultural Building Radiant Heaters ATTENTION ALL USERS This heater has been tested and evalua...

Page 2: ......

Page 3: ...injury or loss of life GENERAL HAZARD WARNING Failure to comply with the precautions and instructions provided with this brooder can result in Death Serious bodily injury or burns Property damage or...

Page 4: ...te distributor or the L B White Co Inc for assistance or if you have any questions about the use of the heater or its application The L B White Co Inc has a policy of continuous product improvement It...

Page 5: ...applicable 1 There are other factors that will affect the quantity of animals each heater can cover These include building ventilation and control systems building insulation building size and populat...

Page 6: ...hing Symptoms of improper combustion affecting livestock can be disease lower feed conversion or death Asphyxiation Hazard Some p people c cannot s smell w well S Some p people c cannot smell t the o...

Page 7: ...uired have a qualified gas heater service agency replace the complete part Do not attempt to repair 5 This heater is intended for the heating of livestock in agricultural animal confinement buildings...

Page 8: ...ttings and adapters upstream of the gas control with approved gas leak detectors In the event a gas leak is detected check the components involved for cleanliness and proper application of pipe compou...

Page 9: ...s designed for either L P vapor withdrawal or natural gas depending on model number Do not use this heater in an LPG liquid withdrawal system Do not permit LPG in liquid form to enter the heater at an...

Page 10: ...the elastic on the filter and slide the filter over the sleeve Make sure the elastic of the filter is covering the top of the sleeve and that the seam of the filter is perpendicular to the canopy edge...

Page 11: ...fully clogged with dust and dirt A dust choked filter will restrict the combustion air causing improper combustion Signs of improper combustion include backflashing of flame into the venturi tube yel...

Page 12: ...ill occur 5 Set the building s temperature control to desired temperature This heater includes a spark ignition control module for purposes of controlling the timing of the ignition process of the hea...

Page 13: ...ou can no longer feel heat coming from the heater canopy or combustion cones 2 Using a soft bristle brush brush off all exterior surfaces of the heater Pay particular attention to the air inlet hole o...

Page 14: ...ny debris that may have accumulated 2 The a appliance a area s shall b be k kept c clear a and f free f from combustible m materials g gasoline a and o other flammable v vapors a and l liquids 3 Regul...

Page 15: ...rom the orifice body by turning counter clockwise 6 Use compressed air to clean the orifice hole Do not push or poke any small file broach etc through orifice holes Doing so may enlarge the hole causi...

Page 16: ...sconnect the high voltage ignition lead 10 Remove the connector nut from the ignition cable This same nut will be slid over the replacement ignition cable and used to create a water tight connection a...

Page 17: ...ater top 6 Remove the igniter from the heater The igniter rod and its insulating ceramic body must be rigid within its mounting bracket If the igniter rod or its body are capable of movement the ignit...

Page 18: ...e heater with a 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 TERMINAL MOUNTING LEG RESET BU...

Page 19: ...as control valve Tighten securely See Fig 15 2 Connect the gas supply hose to the hose fitting on the test kit Tighten securely See Fig 15 3 Reconnect the heater to its electrical supply 4 Open the ma...

Page 20: ...oblem is identified by the flow chart OPERATION SEQUENCE A call for heat occurs from building thermostat Line voltage is sent from building s temperature control to heater s ON OFF switch Switch sends...

Page 21: ...High Limit Switch and Determine Cause of Tripping No No Is ON OFF Switch on Heater Positioned to ON Position the Switch to ON Yes No Is Proper Voltage Supplied to Heater Power Cord Provide Proper Vol...

Page 22: ...ed Methods in this Owner s Manual No No I s Heater s Venturi Tube Reasonably Clean Clean Heater According to Prescribed Cleaning Methods in this Owner s Manual Yes No Is Flame Sense Ground Lead Proper...

Page 23: ...in this Owner s Manual Yes No Is Dust Filter Clean Are Inner Cone Inlet Venturi Injector Body or Burner Orifice Plugged Clean all Components According to Cleaning Instructions in Owner s Manual If Com...

Page 24: ...LACK GREEN WHITE SPARK IGNITION CONTROL NOTE POWER CORD IS CONNECTEDTO THERMOSTAT OR BUILDING ENVIRONMENTAL CONTROL SYSTEM ELECTRICAL CONNECTION DIAGRAM N1 N2 GND L1 MV ON OFF SWITCH POWER CORD GAS CO...

Page 25: ...ignition control systems Ignites gas by spark Ignition Control Module Electronic device which controls the ignition sequence and operation of the heater Injector Body Allows combustion air to be drawn...

Page 26: ...Parts Identification PARTS SCHEMATIC 11 4 5 10 34 6 17 8 26 32 25 37 27 28 22 35 24 23 31 30 7 31B 1 31A 29 3 9 2 12 36 20 16 21 13 41 1 14 19 18 33 39 42 40 38 25...

Page 27: ...n 25 Orifice Burner L P Gas 310 21562 310 20573 Natural Gas 310 09776 310 21000 26 Injector Body w Air Register Plate L P Gas 500 21838 500 20672 Natural Gas 500 21837 500 21559 27 Retaining Screw for...

Page 28: ...te o of p purchase by t the e end u 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 tha...

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