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Installation
Instructions
Remote Thermostat
Model A A S040 ( ( Cont.)
7. Attach the ground lead terminal to the ground screw in
the enclosure.
8. Push the exposed conductors of the power supply and
return leads beneath the terminal strip screw plates
previously occupied by the jumper. Tighten the screw
plates and tug on the leads to make sure the leads are
securely attached.
9. Reconnect the heater to its electrical supply and open
the fuel supply valves to the heater.
10. Check the heater for proper operation. Light the pilot
and set the thermostat so the fan motor starts and the
main burner ignites.
11. Disconnect the heater from its electrical supply.
Reinstall the electrical enclosure cover and the fan
access panel. Reconnect the heater to its electrical
supply. Set the thermostat to desired temperature.
2.9-3 3
Model A A B200 a a nd A A B250
1. Disconnect the heater from its electrical supply and
close all fuel gas valves to the inlet of the heater.
2. Open the burner access door to locate the heater's
electrical enclosure.
enclosure.
Ground
Lead
3. Remove the hole plug from the thermostat cord entry
hole near the power cord at the front of the case
assembly.
4. Run the thermostat cord through this hole and through
the bushing in the base of the enclosure.
Remove the cover from the
August 1999

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Summary of Contents for L.B. White AS040

  • Page 1 Installation Instructions Remote Thermostat Model A A S040 ( ( Cont.) Model A A B200 a a nd A A B250 7. Attach the ground lead terminal to the ground screw in 1. Disconnect the heater from its electrical supply and the enclosure.
  • Page 2 Installation Instructions Remote Thermostat Model A A B200 a a nd A A B250 7. Push the exposed conductors of the power supply and 5. Secure the cord in place at the entry hole on the case power return leads beneath the terminal strip screw front with the strain relief provided in the thermostat kit.
  • Page 3 Installation Instructions Hanging Instructions 1. Assemble according to the illustration and tighten all 2. Make sure the heater is properly positioned before eyebolts securely. use and is hung level. Observe and obey all minimum safe distances of the heater to the nearest combustible materials.
  • Page 4 Installation Instructions Air Diverters Depending on model number, two designs of air diverters a. The air diverter’s notched tabs on each half will may be available for your heater. The air diverters allow the pop into the blower outlet between the inside of hot discharge air to be blown out either in two 45 degree the case assembly and the blower housing outlet.
  • Page 5 Installation Instructions Air Diverters One-P P iece A A ir D D iverter 3. Push down on the diverter to lock it into position. 1. Loosen the four blower outlet screws. Tighten the outlet screws. 2. Align the keyhole slots in the mounting flanges with each outlet screw.
  • Page 6 Operation Instructions Start-Up and Shut-Down Instructions Start-U U p I I nstructions Determine the pilot control valve type supplied on the heater. Connect the heater’s power cord to an approved electrical supply. For heater with gas control valves with an internal low pressure regulator and gas shut off, refer to Section A.
  • Page 7 Operation Instructions Start-Up and Shut-Down Instructions Shut-D D own I I nstructions If the heater is to be shut down for cleaning, maintenance, or If applicable, turn the control valve knob to “Off”. repair, follow steps 1 through 5. Otherwise, simply turn the thermostat to “Off”...
  • Page 8 Operation Instructions Variable Heat Output 1. Some models of propane (LP) gas or natural gas 2. The throttle valve can be adjusted to deliver either heaters have a throttle valve for varying heat output minimum heat or maximum heat. Become located between the gas control valve and gas familiarized with the design of the throttle valve in your manifold assemblies.
  • Page 10 L.B. White Co., Inc. Dataplates, start- 4. Regulators can wear out and function improperly. up and shut-down instructions and warnings are Have your gas supplier check the date codes on all available at no cost.
  • Page 11 Preventative Maintenance 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 12: Troubleshooting

    5.1-9 • Low P P ressure G G auge - (L.B. White Part No. 550-00764) for 11 Gas control valve “chatters”. 5.1-10 checking inlet and manifold pressures of the gas control valve against dataplate rating.
  • Page 13 Troubleshooting Instructions Troubleshooting Pilot Flame ATTENTION These illustrations are intended to provide a means to With any pilot light assembly, always make sure the assist you in troubleshooting a pilot problem. They thermocouple is completely installed within the pilot must be used in conjunction with proper cleaning, bracket by either its mounting clip or nut.
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This manual is also suitable for:

Ab200Ab250