Owner’s Manual and Instructions GUARDIAN ® Agricultural Animal Confinement Building Heaters View this manual online at www.lbwhite.com MODELS OUTPUT (Btuh) FUEL AD060 AD100 60,000 100,000 Available in either Propane Vapor Withdrawal or Natural Gas Configurations. Certification by: SCAN THIS QR CODE with your smartphone or visit http://goo.gl/nksqZ to view maintenance videos for L.B.White heaters.* *Requires an app like QR Droid for Android or QR Reader for iPhone.
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 from fire or explosion — Asphyxiation due to lack of adequate air supply or carbon monoxide poisoning — Electrical shock ■ Read this Owner’s Manual before installing or using this heater. ■ Only properly-trained service people should repair or install this heater. ■ Save this Owner’s Manual for future use and reference.
Table of Contents SECTION PAGE General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Heater Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater Specifications Heater Specifications Model SPECIFICATIONS Maximum Input (BTUH) Minimum Input (BTUH) AD060 AD100 Propane Natural Gas Gas Propane Natural Gas Gas 60,000 30,000 100,000 50,000 240 400 Ventilation Air Required to Support Combustion (CFM) Inlet Gas Supply Pressure MAX. Acceptable at the Inlet of the Heater for Purpose of Input MIN. Adjustment ( In.W.C.) 11.0 7.0 10.0 4.0 MAX. 2.78 lbs. 60 cu. ft. 4.63 lbs. 100 cu. ft. MIN. 1.39 lbs. 30 cu. ft. 2.31 lbs. 50 cu. ft.
Safety Precautions WARNING Asphyxiation Hazard ■ Do not use this heater for heating human living L.B. White Company to determine combustion air quarters. ventilation requirements of the heater. ■ Do not use in unventilated areas. ■ The flow of combustion and ventilation air must not be obstructed. ■ Lack of proper ventilation air will lead to improper combustion. ■ Proper ventilation air must be provided to support the combustion air requirements of the heater being used.
1. Do not attempt to install, repair, or service this heater or the gas supply line unless you have continuing expert training and knowledge of gas heaters. Qualifications for service and installation of this equipment are as follows: a. To be a qualified gas heater service person, you must have sufficient training and experience to handle all aspects of gas-fired heater installation, service and repair.
Installation Instructions GENERAL WARNING Fire or explosion hazard. Can cause property damage, severe injury or death. 1. Disconnect power supply before wiring to prevent electrical shock or equipment damage. 2. To avoid dangerous accumulation of fuel gas, turn off gas supply at the appliance service valve before starting installation, and perform gas leak test after completion of installation. 3. Do not force the gas control knob. Use only your hand to turn the gas control knob. Never use any tools.
12. A qualified service agency must check for proper operating gas pressure upon installation of the heater. 13. Light according to instructions on heater or within owner's manual. 14. It is extremely important to use the proper size and type of gas supply line to assure proper functioning of the heater. Contact your fuel gas supplier for proper line sizing and installation. 15. This heater can be configured for use with either L.P. gas vapor withdrawal or natural gas.
HANGING INSTRUCTIONS 1. Assemble according to the illustration and tighten all eyebolts securely. (See Fig. 2): FIG. 3 NOTE: REGULATORS SHOULD ALWAYS BE MOUNTED OUTDOORS. IF CIRCUMSTANCES FORCE INSTALLING THE REGULATOR INDOORS, THE REGULATOR'S VENT MUST BE VENTED OUTDOORS USING VENT LINE NO SMALLER THAN VENT OPENING.
THERMOSTAT INSTALLATION WARNING Electrical Shock Hazard ■ Disconnect the electrical supply before connecting the thermostat to the heater. ■ Failure to follow this warning can result in electrical Action: -- Disconnect and discard the yellow wire between the 24 VAC output of the transformer and terminal W on the ignition controller. -- Remove the plastic hole plug at the bottom of the control box and route the thermostat cord up through this hole.
Start-Up Instructions is a red light emitting diode (LED). This LED indicates the status of the heater. The LED is visible external of the control enclosure through the plastic eye. A constant light from the LED is an indicator that the heater is functioning correctly. Any flash pattern by the LED is indicative that there is a problem in the operation of the heater. Refer to the troubleshooting decal on the access panel at the fan motor end of the heater for assistance in troubleshooting.
Variable Heat Output 1. This heater has a throttle valve for varying heat output located between the gas control valve and gas manifold assemblies. THIS IS NOT A MANUAL GAS SHUT OFF VALVE. The throttle valve may be adjusted to minimum heat output by turning the handle 90° to gas flow or any position between maximum and minimum settings. (Refer to Figs. 9, 10, and 11.) 2. The throttle valve can be adjusted to deliver either minimum heat or maximum heat.
Cleaning Instructions WARNING Fire, Burn, and Explosion Hazard ■ 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. ■ Periodic cleaning and inspection as well as proper maintenance are essential to avoid serious injury or property damage. 1.
Service Instructions GENERAL WARNING Burn Hazard ■ Heater surfaces are hot for a period of time after the heater has been shut down. ■ Allow the heater to cool before performing service, maintenance, or cleaning. ■ Failure to follow this warning will result in burns causing injury. WARNING Fire and Explosion Hazard ■ Do not disassemble or attempt to repair any heater components or gas train components. ■ All component parts must be replaced if defects are found.
AIR PROVING SWITCH WITH PADDLE The air proving switch must work properly to allow an ignition cycle. If the air proving switch contacts do not close on a call for heat after the fan motor starts, neither spark nor ignition will occur. FIG. 14 1. Remove the two (2) sheet metal screws holding the switch with bracket to blower housing. See Fig.14. 2. Remove the assembly by turning the switch assembly so the paddle on the switch arm can be pulled through the oblong hole on side of fan housing. 3.
IGNITION CONTROLLER The controller is diagnostic and will identify ignition problems by the flash sequence of the red light (LED) connected to the controller. Count the number of times the red light flashes, and then refer to the troubleshooting flow charts in this manual or the troubleshooting label on the heater. FIG. 18 The controller will safely shut the heater down if a problem occurs. The ignition control must be reset to restart the heater. Turn the heater OFF and then ON.
IGNITER AND FLAME SENSOR ■ Refer to Fig.23 (AD100) or Fig.24 (AD060) for servicing of the igniter assembly. ■ The igniter/sensor assembly may require cleaning due to accumulations of dust and dirt over a period of time, affecting its ability to ignite fuel gas and sense burner flame. Cleaning will require igniter/sensor removal. --- If the spark appears strong but the heater cycles off, rub the sensor rod with emery cloth or steel wool to remove any build-up. ■ Ensure the igniter gap is .15 in.
Gas Pressure Checks WARNING ■ Do not disassemble the gas control valve. ■ Do not attempt to replace any components of the gas 2. Securely connect a pressure gauge to each pressure tap. See Fig.26. FIG. 26 OUTLET PRESSURE TAP INTERNAL PRESSURE REGULATOR control valve. ■ The gas control valve must be replaced if any physical LOW PRESSURE GUAGE LOW PRESSURE GUAGE damage occurs to the control valve assembly.
Troubleshooting Instructions READ THIS ENTIRE SECTION BEFORE BEGINNING TO TROUBLESHOOT PROBLEMS. WARNING Electrical Shock and Burn Hazard ■ Do not attempt to service or repair this heater unless you are a properly trained and qualified gas heater service person. ■ Troubleshooting this system may require operating the unit with line voltage present and gas on. Use extreme caution when working on the heater. ■ Failure to follow this warning may result in property damage, personal injury or death.
20 LED light not on during a call for heat. Problem LED constant on No Is heater plugged in? No Are 24 volts supplied to ignition control? Yes Yes Set thermostat above room temperature. No Is thermostat set above room temperature? LED light in module is defective. Replace ignition module. Check dataplate for electrical supply requirements. Provide proper voltage from electrical supply. Check circuit breakers in building electrical system. Check power cord for continuity.
21 Is airproving switch shorted? (Perform continuity check on airproving switch.) No Is air-proving switch arm binding on housing? Is there an obstruction in heater outlet? Yes Yes Replace air-proving switch. Repair and/or remove obstructions. The heater has attempted three ignition trials. Heater is in a 15 minute wait period. At the end of 15 minutes the ignition controller will restart the heater and three more ignition trials will occur.
22 Two Times Lack of air proving in fan section. Yes Yes If improper voltage is supplied, contact electrician. - OR If no voltage is supplied to motor, check wiring, replace motor relay (if applicable), or replace ignition control module. No Is proper voltage supplied to motor from ignition module? No Does fan motor start up during initial call for heat? Defective motor or capacitor. Replace motor. Check wiring between module and component.
23 No Yes Yes Remove orifice and burner casting. Blow out with compressed air or clean with a soft brush. No Have the burner orifice, burner casting and manifold been checked for blockage? Fill tank or resize if necessary. Open all gas supply valves (A) If low or high pressure is read, adjust outlet pressure as necessary. (B) If gas pressure is not read, replace the gas control valve. No Is proper burner manifold pressure read at outlet of gas valve? Three Times Lack of ignition.
24 If DSI board does not reset, then replace the board. (Internal board fault.) If DSI board resets, then have qualified electrician check power source for power quality problems. (Frequency, line noise, line spikes, loose connections, too small wire gauge.) Flame Sense Degradation. See flame sensor related problems in three time flash pattern.
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 POWER CORD GROUND OPTIONAL THERMOSTAT WHITE BLACK GREEN AIR PROVING SWITCH GREEN BLACK BROWN IGNITER FLAME SENSOR BROWN BLUE BLUE YELLOW WHITE WHITE GREEN GREEN GREEN LI IND L.E.D.
Heater Component Function Air Proving Switch Safety device used to insure that the proper air flow is being achieved before the gas valve is opened. Burner Cast iron component used to channel gas and provide an area at which the fuel may ignite. Burner Orifice Brass metering device used to feed gas to burner at a specific rate. Fan Housing Chamber used for compressing air for efficient air movement.
Parts Identification PARTS SCHEMATIC 15 11B 27 11A
Parts Identification PARTS LIST Item 1 2 3 4 5 6 Description Regulator, 2nd stage, vent over outlet Regulator, 2nd stage, vent over side Regulator, 2nd stage, with vent limiter Valve, manual shut off with nipple Hose, 1/2 in. ID x 10 ft.
Warranty Policy HEATER L.B. White Co., Inc. warrants that the component parts of its heater are free from defects in material and workmanship, when properly installed, operated, and maintained in accordance with the Installation and Maintenance Instructions, safety guides and labels contained with each unit. If, within 12 months from the date of purchase by the end user, any component is found to be defective, L.B. White Co., Inc.
