Lennox EL296UHVX Series User Manual

Page 83
TABLE 28
GAS METER CLOCKING CHART
EL296
Unit
Seconds for One Revolution
Natural LP
1 cu ft
Dial
2 cu ft
Dial
1 cu ft
Dial
2 cu ft
Dial
-045 80 160 200 400
-070 55 110 136 272
-090 41 82 102 204
-110 33 66 82 164
-135 27 54 68 136
Natural-1000 btu/cu ft LP-2500 btu/cu ft
IMPORTANT
For safety, shut unit o󰀨 and remove manometer as
soon as an accurate reading has been obtained.
Take care to replace pressure tap plug.
G- Proper Combustion
Furnace should operate minimum 15 minutes with correct
manifold pressure and gas ow rate before checking com-
bustion. See sections E- and F-. Take combustion sample
beyond the ue outlet. TABLE 29 shows acceptable com-
bustions. The maximum carbon monoxide reading should
not exceed 100 ppm.
TABLE 29
EL296
Model
CO
2
% For Nat CO
2
% For L.P
Low Fire High Fire Low Fire High Fire
045 5.4 - 6.4 7.5 - 8.5 6.4 - 7.4 8.8 - 9.8
070 5.3 - 6.3 7.4 - 8.4 6.3 - 7.3 8.7 - 9.7
090 5.8 - 6.8 7.6 - 8.6 6.8 - 7.8 8.9 - 9.9
110 6.1 - 7.1 8.0 - 9.0 7.1 - 8.1 9.3 - 10.3
135 6.1 - 7.1 7.8 - 8.8 7.1 - 8.2 9.1 - 10.1
The maximum carbon monoxide reading should not exceed 100ppm.
H- High Altitude
The manifold pressure, gas orice and pressure switch
may require adjustment or replacement to ensure proper
operation at higher altitudes. See TABLE 30 or TABLE 31
for manifold pressures. See TABLE 32 for gas conversion
and pressure switch kits.
TABLE 30
Manifold and Supply Line Pressure 0-10,000ft.
EL296UH Unit Gas
Manifold Pressure in. wg. Supply Line Pressure in. wg.
Low Fire High Fire Min Max
045, 070
-1 through -5 Units
090, 110, 135
-1 through -4 Units
Natural 1.7 3.5 4.5 13.0
LP/Propane 4.5 10.0 11.0 13.0
NOTE - A natural to L.P. propane gas changeover kit is necessary to convert this unit. Refer to the changeover kit installation instruction for the
conversion procedure.

Lennox EL296UHVX Series Specifications

General

Brand	Lennox
Model	EL296UHVX Series
Category	Furnace
Language	English