L.B. White GUARDIAN AB250 Owner's Manual And Instructions
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L.B. White GUARDIAN AB250 Owner's Manual And Instructions

Agricultural animal confinement building heater
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Owner's Manual and Instructions
GUARDIAN
Agricultural Animal Confinement Building Heater
®
MODELS
OUTPUT (Btuh)
FUEL
Available in
either L.P. Gas
AB250
250,000
Vapor Withdrawal
or Natural Gas
Configurations.
Certification by:
* Specific models are certified by C.S.A. International.
Contact L.B. White co. for further information.
Congratulations!
You have purchased the finest agricultural building heater available.
Your new L.B. White heater incorporates the benefits from the most experienced
manufacturer of heating products using state-of-the-art technology.
We, at L.B. White, thank you for your confidence in our products and
welcome any suggestions or comments you may have...call us, toll-free,
at 1-800-345-7200.
ATTENTION ALL USERS
This heater has been tested and evaluated by C.S.A. International in accordance
with ANSI/IAS U.S. LC2-1996 as well as the Canadian Gas Association Standard for
Gas Fired Brooders, CAN1-2.20-M85 and is listed and approved as a direct gas-
fired circulating heater for the heating of agricultural animal confinement buildings.
If you are considering using this product for any application other than its intended
use, then please contact your fuel gas supplier, or the L.B. White Co., Inc.
150-24206

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Summary of Contents for L.B. White GUARDIAN AB250

  • Page 1 If you are considering using this product for any application other than its intended use, then please contact your fuel gas supplier, or the L.B. White Co., Inc. 150-24206...
  • Page 2 Save this Owner’s Manual for future use and reference. Owner’s Manuals and replacement labels are available at no charge. For assistance, contact L.B. White at 800-345-7200. WARNING Proper gas supply pressure must be provided to the inlet of the heater.

  • Page 3: Table Of Contents

    L.B. White Company. information is contained on the dataplate. Contact your local L.B. White distributor or the L.B. White Co., This manual will instruct you in the operation and care of Inc. for assistance, or if you have any questions about the your unit.

  • Page 4: Heater Specifications

    Heater Specifications M M o o d d e e l l AB250 SPECIFICATIONS L.P. Natural Maximum Input (BTUH) 250,000 Minimum Input (BTUH) 160,000 Ventilation Air Required 1,050 CFM to Support Combustion Inlet Gas Supply 13.5 in. MAX. Pressure Acceptable W.C.

  • Page 5: Safety Precautions

    Symptoms of carbon monoxide poisoning can include headaches, dizziness and difficulty in breathing. Refer to the specification section of the heater’s Owner’s Manual, heater dataplate, or contact the L.B. White Symptoms of improper combustion affecting livestock can be disease, lower feed conversion, or death.
  • Page 6 The hose assembly shall be that 2. All installations and applications of L.B. White heaters specified by the manufacturer. See parts list. must meet all relevant local, state and national codes.

  • Page 7: Installation Instructions

    Installation Instructions GENERAL 8. Check all connections for gas leaks using approved WARNING gas leak detectors. Gas leak testing is performed as follows: Fire o o r e e xplosion h h azard. Can c c ause p p roperty d d amage, s s evere i i njury o o r d d eath. -- Check all pipe connections, hose connections, 1.

  • Page 8: Air Diverter Installation Instructions

    Contact your gas supplier, or activates appropriate alarms. the L.B. White Co., Inc. if you have any questions. 15. Take time to understand how to operate and maintain 13. This heater can be configured for use with either L.P.

  • Page 9: Hanging Installation Instructions

    HANGING INSTRUCTIONS FIG. 3 1. Assemble according to the illustration and tighten all eyebolts securely. (See Fig. 2): NOTE: REGULATORS SHOULD ALWAYS BE MOUNTED OUTDOORS. IF CIRCUMSTANCES FORCE INSTALLING THE REGULATOR INDOORS, FIG. 2 THE REGULATOR'S VENT MUST BE VENTED OUTDOORS USING VENT LINE NO SMALLER THAN VENT OPENING.

  • Page 10: Thermostat Installation Instructions

    THERMOSTAT INSTALLATION 2. To C C onnect t t he D D irect W W ired T T hermostat K K it t t o t t he WARNING Control B B ox o o n t t he H H eater: Electrical S S hock H H azard a.

  • Page 11: Start-Up Instructions

    Start-Up Instructions Follow steps 1 - 8 on initial start-up after heater installation FIG. 6 GAS SHUT OFF KNOB by a qualified gas heater service person. For normal start- up, simply turn thermostat above room temperature. The heater will start. Open all manual fuel supply valves and check for gas leaks using approved certified leak detectors.

  • Page 12: Variable Heat Output Instructions

    Variable Heat Output 1. Some models of propane (LP) gas or natural gas completely open to deliver maximum heat output. heaters have a throttle valve for varying heat output (Refer to Fig. 7.) located between the gas control valve and gas manifold assemblies.

  • Page 13: Cleaning Instructions

    Cleaning Instructions WARNING Fire, B B urn, a a nd E E xplosion H H azard This heater contains electrical and mechanical components in the gas management, safety and airflow systems. Such components may become inoperative or fail due to dust, dirt, wear, aging, or the corrosive atmosphere of an animal confinement building.

  • Page 14: Electrical Connection And Ladder Diagram

    Electrical Connection and Ladder Diagram CAUTION Always refer to the heater’s electrical connection diagram when servicing to avoid wiring errors and heater malfunction. Check for proper operation after servicing. WARNING: THIS HEATER MAY START AT ANY TIME AIR PROVING SWITCH (NOT SUPPLIED ON SOME MODELS) BLACK BLACK...

  • Page 15: Heater Component Function

    Heater Component Function Air Proving Switch Pilot Light Orifice Safety device used to insure that the proper air flow is being A metering device used to supply gas for the dual purpose of achieved before the gas valve is opened. igniting the main burner and heating the thermocouple.

  • Page 16: Parts Identification

    Parts Identification Parts Schematic...

  • Page 17: Parts List

    Parts List Item Description Part N N umber Regulator, Second Stage (LP Gas) 06665 Regulator, Second Stage (Nat. Gas) 23360 Nipple, 3 1/2 in. 07148 Valve, Manual Shut-Off 05548 Hose, 1/2 in. x 10 ft. 20714 Adapter, 1/2 NPT x 1/2 NPS 02894 Sediment Trap 00815...

  • Page 18: Warranty Policy

    Warranty Policy EQUIPMENT L.B. White Co., Inc. warrants that the component parts of its or replace the defective part or equipment, with a new part equipment are free from defects in material and or equipment, F.O.B., Onalaska, Wisconsin. workmanship, when properly installed, operated, and maintained in accordance with the Installation and A warranty card on file at L.B.

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