L.B. White AW250, Owner'S Manual And Instructions

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1. Before cleaning, shut off all gas supply valves and
disconnect the electrical supply.
2. T h e h e a te r s h o u l d h ave d i r t o r d u s t r e m ove d
periodically:
a. A f te r e a c h f l o c k o r b e t we e n b u i l d i n g r e -
population, give the heater a general cleaning
using compressed air or a sof t brush on its
interior and exterior. At this time, dust off the
motor case to prevent the motor from over-heating
and shutting the heater down.
b. At least once a year, give the heater a thorough
cleaning. At this time, remove the fan and motor
assembly and brush or blow off the fan wheel,
giving attention to the individual fan blades.
Make sure the burner air inlet venturi ports and
the “throat” of the casting are free of dust
accumulation and the area between the heat
chamber top and inside case is also free of dust.
Additionally, the flame sensor should be removed
and cleaned according to the service instructions
within this Owner’s Manual.
c. When washing with water, observe and obey the
Warning within these Cleaning Instructions. This
same Warning is also supplied on the heater.
WARNING
This heater 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 within 1.83
m of the heater.
D. The water pressure does not exceed 3.1 bar for 10
seconds on each side of heater.
E. The heater is not reconnected to electrical supply
for a minimum of 1 hour or until the heater is
thoroughly dry.
Improper cleaning of the heater can cause severe
personal injury or property damage due to water and/or
cleaning solution:
1. In electrical components, connections and wires
causing electrical shock or component failure.
2. On gas control components causing corrosion which
can result in gas leaks and fire or explosion from
the leak.
Clean internal components of the heater with a soft, dry
brush or cloth, or compressed air.
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.