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2. Reusable Type Filters — Filters should be checked
monthly and cleaned when necessary to assure prop
er furnace operation. Use warm water and a mild de
tergent. Replace filter when dry. Permanent filters
supplied with ELO183DH furnaces do not require oil
ing after cleaning. Examine filter label for any for spe
cial instructions that may apply.
Servicing Blower
Blower motor is pre-lubricated and sealed for extended op
eration. No further lubrication is required. Disconnect pow
er to unit before cleaning blower wheel for debris.
Servicing Nozzle
Replace nozzle every year to to ensure proper operation.
Clogged nozzles will result in improper firing or non‐firing of
unit.
Flue Pipe Inspection
The flue pipe should be inspected annually by a qualified
service technician. Remove and clean any soot or ash
found in the flue pipe. Inspect pipe for holes or rusted
areas. If replacement is necessary, replace with the same
size and type as required by code. Inspect the flue draft
control device and replace if found defective.
Cleaning Heat Exchanger
1. Remove the vent pipe from the furnace.
GeniSyst Primary Burner Control
ELO183DH units are equipped with the Beckett GeniSyst 7505B primary burner control. The control is positioned on the
upper right-hand side of the Beckett AFG burner assembly. The control includes a reset button and three status lights. See
figure 16 for location of reset buttons and status lights. Table 10 details reset button operation. Table 11 details status light
function.
Additional information on the GeniSyst 7505B primary burner control is provided with this furnace.
with Red Status Light
Yellow Pump
Prime Status Light
Green Flame
Status Light
Beckett GeniSyst 7505B Primary Burner Control
Reset Button
FRONT VIEW
2. Remove the locking screws and the caps from the
clean-out tubes. Remove flue access elbow.
3. Using a long spiral wire brush, sweep down the outer
drum of the heat exchanger. Then using the hose at
tachment, vacuum out loose debris.
4. Remove the locking screw and cap from the observa
tion tube and with the spiral wire brush, reach upward
toward the rear of the heat exchanger to clean out the
crossover tube.
Do not attempt to clean the combustion chamber. It
can be easily damaged.
5. Replace the clean-out caps and flue access elbow.
Make sure locking screws are secure.
6. Brush out and vacuum the vent outlet area of the outer
drum and replace vent pipe.
7. Clean around burner, blower deck and vestibule area.
NOTE - A heat exchanger clean‐out kit ABRSH380
(35K09) is available from Lennox. The kit includes a
radiator brush, a tapered brush and a non-metallic 36"
spiral wire handle.
Connections
Cad Cell
Connections
Figure 16
Page 17
CAUTION
Wiring
REAR VIEW
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