Installation - Lennox Elite ELO183DH Series Installation Instructions Manual

Equipment In Confined Space
All Air From Outside
Chimney
Or Oil
Vent
Oil
Furnace
NOTE-Each air duct opening shall have a free area of at least one
square inch (6.4 square centimeters) per 2,000 Btu (586 W) per hour
of the total input rating of all equipment in the enclosure. If the equip­
ment room is located against an outside wall and the air openings
communicate directly with the outdoors, each opening shall have a
free area of at least one square inch (6.4 square centimeters) per
4,000 Btu (1172 W) per hour of the total input rating of all other equip­
ment in the enclosure.
Figure 3
CAUTION
Combustion air openings in the front of the furnace
must be kept free of obstructions. Any obstruction
will cause improper burner operation and may re­
sult in a fire hazard or injury.
CAUTION
The barometric draft control shall be in the same at­
mospheric pressure zone as the combustion air in­
let to the furnace. Deviation from this practice will
cause improper burner operation and may result in
a fire hazard or injury.

Installation

When installed, ELO183DH furnaces must be level. If the
furnace is not level, place fireproof wedges or shims be­
tween the low side of the furnace and floor. Make sure the
weight of the furnace is evenly distributed on all four cor­
ners. Strain on sides of the cabinet causing cracking and
popping noises may occur if weight of furnace is not evenly
distributed.
Set the unit in desired location keeping in mind the clear­
ances list in tables 2 and 3. Also keep in mind oil supply
connections, electrical supply, flue connections and suffi­
cient clearance for installing and servicing unit.
ELO183DH series units may be installed in a crawl space
under a house, utility room or in a wide variety of sus­
pended applications.
Water
Heate
r
Outlet Ai
r
Inlet A
ir
Horizontal Application
The ELO183DH furnace is shipped from the factory in the
horizontal left hand air discharge application. Air flow may
be reversed to right side discharge or unit may be used as
downflow.
1. Reversing Airflow for Right Hand Discharge
D Rotate the furnace 180_ so that, when facing the
front, the warm discharge is to the right.
Remove the nuts in the bracket that hold the burn­
D
er to the furnace front. Rotate the burner and burn­
er mounting plate 180_ and reinstall the nuts.
Remove the screws that hold the limit control in
D
place. Use the provided knockout hole to relocate
the limit control to the top side of the front panel.
2. Installation on Non-Combustible Material
Set the furnace on non‐combustible material
D
(such as concrete blocks, bricks or angle iron).
Install spacer legs, provided with unit, by using the
cabinet screws from each corner of the unit.
Use a level to check the level of furnace in at least
D
two directions. Use shims or non‐combustible ma­
terial. A minimum clearance of 1" must be main­
tained between bottom of furnace and combus­
tible material.
3. Suspended Installation
To suspend the furnace, remove knockouts in top
D
of panel at warm air discharge and at blower panel
(Refer to unit dimensions). Use 3/8" rods cut to de­
sired length.
Use one flat washer and two nuts for each rod (a
D
nut and washer on the inside of unit and the other
"locking" nut on the outside of unit; see figure 4).
Level the unit by adjusting the nuts on the inside of
unit.
Hanger Rod Installation
Downflow Application
When installing the ELO183DH in a downflow position and
on combustible flooring, a combustible floor base must be
used. See Unit Dimension illustration.
1. Rotate the furnace so that return is on top and supply
is on bottom. Refer to table 3 for clearances to com­
bustible flooring.
2. Remove the nuts in the bracket that hold the burner to
the furnace front. Rotate the burner and burner mount­
ing plate 90_ and reinstall the nuts.
Page 7
ROD
LOCKING
TOP OF
NUT
FURNACE
WASHER
NUT
BLOWER COMPARTMENT
DIVISION PANEL
Figure 4