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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.  This includes the task of
installation, troubleshooting, replacement of
defective parts and testing of the heater.  You
must be able to place the heater into a continuing
safe and normal operating condition.  You must
completely familiarize yourself with each model
heater by reading and complying with the safety
instructions, labels, Owner’s Manual, etc., that is
provided with each heater.

b. To be a qualified gas installation person, you must

have sufficient training and experience to handle
all aspects of installing, repairing and altering gas
lines, including selecting and installing the proper
equipment, and selecting proper pipe and tank
size to be used.  This must be done in accordance
with all local, state and national codes as well as
the manufacturer’s requirements.

2.

All installations and applications of L. B. White
heaters must meet all relevant local, state and
national codes.  Included are applicable fuel gas
systems, gas installation, electrical, and safety codes.
Yo u r   l o c a l   f u e l   g a s   s u p p l i e r,   a   l o c a l   l i c e n s e d
electrician, the local fire depar tment or similar
government agencies, or your insurance agent can
help you determine code requirements.

3.

Do not move, handle, or service heater while in
operation or connected to a power or fuel supply.

4.

This heater may be installed in areas subject to
washdown.  This heater may only be washed on the
external case assembly—see Cleaning Instructions.
Do not wash the interior of the heater.  Use only
compressed air, soft brush or dry cloth to clean the
interior of the heater and it’s components.  After
external washdown, do not operate this heater until it
is completely dry.  In any event, do not operate the
heater for at least one hour after external washdown.

5.

For safety, this heater is equipped with a manual
reset high-limit switch and an air flow switch.  Never
operate this heater with any safety device that has
been bypassed.  Do not operate this heater unless all
of these features are fully functioning.

6.

Do not operate the heater with its door(s) open.

7.

Do not locate fuel gas containers or fuel supply hoses
within 6,10 meters of 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 damage to heater components leading to property
damage or animal loss.

9.

The hose assembly shall be visually inspected on an
annual basis.  If it is evident there is excessive
abrasion or wear, or if the hose is cut, it must be
replaced prior to the heater being put into operation.
The hose assembly shall be protected from animals,
building materials, and contact with hot surfaces
during use.  The hose assembly shall be that
specified by the manufacturer.  See parts list.

10.

Check for gas leaks and proper function upon heater
installation, before building repopulation or when
relocating.

11.

This heater should be inspected for proper operation
by   a   qu a l i f i e d   s e r v i c e   p e r s o n   b e fo r e   b u i l d i n g
repopulation and at least annually.

12.

Always turn off the gas supply to the heater if the
appliance is not going to be used in the heating of
livestock.

13.

This heater is wired for a three-wire electrical system.
There is a hot lead, neutral lead and ground lead.
The heater may or may not incorporate a plug in the
power cord to the heater and the plug may or may not
incorporate a pin for the ground wire.  In any case,
the heater must be properly connected into a
grounded electrical supply using the ground lead in
the power cord.  Failure to use a properly grounded
electrical supply can result in electrical shock,
personal injury or death.

14.

Hot surface ignition heaters will make up to  three
trials for ignition.  If ignition is not achieved after the
third trial, the control system will “lock out” the gas
control valve.  If gas is smelled after system lock out
has occurred, immediately close all fuel supply
valves.  Do not relight until you are sure that all gas
that may have accumulated has cleared away.  In any
event, do not relight for at least 5 minutes.

15.

In a hanging type installation, rigid pipe or copper
tubing coupled directly to the heater may cause gas
leaks during movement, and therefore must not be
used.  Use only gas hose assemblies that are rated
and approved for LP-gas and natural gas in a hanging
type of installation.

16.

Installations not using the gas hose supplied with this
heater must connect dimensionally using BS1387
Medium Duty Galvanized Steel Tube.  (Aluminum
piping or tubing shall not be used.) 

6

Safety Precautions

Содержание AW250

Страница 1: ...ner s Manual and Instructions Agricultural Animal Confinement Building Heaters ATTENTION ALL USERS This heater has been designed tested and evaluated by L B White Co Inc as a direct gas fired circulat...

Страница 2: ......

Страница 3: ...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...

Страница 4: ...qualifications Contact your local 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...

Страница 5: ...Manifold Pressure mbar Net Weight kg Shipping Weight kg Electrical Supply Volts Hz Phase Amp Draw Starting Amps Includes Igniter Dimensions cm L x W x H Minimum Safe Distances From Nearest Combustible...

Страница 6: ...d 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 smell t...

Страница 7: ...atures are fully functioning 6 Do not operate the heater with its door s open 7 Do not locate fuel gas containers or fuel supply hoses within 6 10 meters of the blower outlet of the heater 8 Do not bl...

Страница 8: ...s for gas leaks using approved gas leak detectors Gas leak testing is performed as follows Check all pipe connections hose connections fittings and adapters upstream of the gas control with approved g...

Страница 9: ...your gas supplier or the L B White Co Inc if you have any questions 14 This heater is configured for use with either L P vapor withdrawal only Do not use the heater in an L P gas liquid withdrawal sys...

Страница 10: ...ated in the specification section of this owner s manual and on the heater dataplate FIG 3 Assemble the tee nipples and cap together and tighten securely The sediment trap assembly must always be moun...

Страница 11: ...trol Box on the Heater a The installation and wiring 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 voltag...

Страница 12: ...e 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 pur...

Страница 13: ...may be washed only on the external case assembly provided A The heater is disconnected from the electrical supply B All access panels are securely closed C Water spray nozzle shall not discharge withi...

Страница 14: ...will enlarge the hole causing combustion or ignition problems Replace the orifice if it cannot be cleaned properly 3 The high limit switch HEAT VENT switch and thermostat can be tested by disconnectin...

Страница 15: ...bend up the arm of the sail NOT THE SWITCH ARM in increments until the sail arm engages the switch arm closing the contacts of the switch when the sail body trailing edge is 31 7 mm to 34 9 mm from th...

Страница 16: ...no further checking or adjustment is required Proceed to section D 3 If the inlet pressures do not agree with that specified on the dataplate then the regulator controlling gas pressure to the heater...

Страница 17: ...end of the igniter leads See Fig 12 3 Remove the screw securing the igniter shield and the igniter to the mounting bracket Remove the igniter and shield 4 Connect the male plug on the replacement ign...

Страница 18: ...Allow the switch cool down for about a minute before firmly pressing the red reset button on the switch 5 Check for electrical continuity across the switch terminals to make sure the contacts have cl...

Страница 19: ...iagnostic light flashing A Rapid Flash 20 B Long Flash 2 seconds on 2 seconds off 20 C One Time 20 D Two Times 21 E Three Times 22 F Four Times 23 G Five Times 23 H Six Times 23 Ventilation Mode Probl...

Страница 20: ...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...

Страница 21: ...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...

Страница 22: ...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...

Страница 23: ...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...

Страница 24: ...board sends and receives voltages throughout the entire operation sequence The HSI board terminals should also be checked for delivering proper voltages in addition to the individual components as ind...

Страница 25: ...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...

Страница 26: ...25 Electrical Connection and Ladder Diagram...

Страница 27: ...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...

Страница 28: ...Parts Identification PARTS SCHEMATIC 27...

Страница 29: ...igh Limit 05566 22 Chamber Heat 20024 23 Door Right 20757 24 Latch Assembly for case assembly and control box 20959 25 Case Assembly with Doors and Latches 20144 26 Hinge 05868 27 Door Left 20756 28 H...

Страница 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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