Lennox G40 User manual

G40
Mid-efficiency gas furnace
Home Comfort Systems
LENNOX’ MERIT®SERIES
G40 Gas Furnace ◆80% AFUE

Mid-efficiency levels save
you money, compared to
older furnaces
Durable, high-quality design
for long-lasting performance
Merit®Series G40 Gas Furnace
EFFICIENT, CONSISTENT WARMTH—YEAR AFTER YEAR
G40
80% AFUE
Innovation never felt so good.
™
EFFICIENCY RATING
80% AFUE (Annual Fuel
Utilization Efficiency)
WARRANTY*
20-year limited warranty
on the heat exchanger.
5-year limited warranty
on all remaining
covered components.
© Lennox Industries Inc. 2002
Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX.
(37M96) G40 2/07
PC48540
Merit®Series G40 Specifications
UH36A-045
G40 UH24A-045 (X) UH24A-070 UH36A-070 UH36B-090 UH36C-110 UH48B-070 UH48B-090 (X)
AFUE 80% 80% 80% 80% 80% 80% 80%
Dimensions HxWxD (in.) 40 x 14-1/2 x 28-1/2 40 x 14-1/2 x 28-1/2 40 x 14-1/2 x 28-1/2 40 x 17-1/2 x 28-1/2 40 x 21 x 28-1/2 40 x 17-1/2 x 28-1/2 40 x 17-1/2 x 28-1/2
HxWxD (mm) 1016 x 368 x 724 1016 x 368 x 724 1016 x 368 x 724 1016 x 446 x 724 1016 x 533 x 724 1016 x 446 x 724 1016 x 446 x 724
G40 UH48C-110 UH60C-110 (X) UH48C-135 UH60D-135 UH60D-155 DF-24A-045 (X) DF-36A-045
AFUE 80% 80% 80% 80% 80% 80% 80%
Dimensions HxWxD (in.) 40 x 21 x 28-1/2 40 x 21 x 28-1/2 40 x 21 x 28-1/2 40 x 24-1/2 x 28-1/2 40 x 24-1/2 x 28-1/2 40 x 14-1/2 x 28-1/2 40 x 14-1/2 x 28-1/2
HxWxD (mm) 1016 x 533 x 724 1016 x 533 x 724 1016 x 533 x 724 1016 x 622 x 724 1016 x 622 x 724 1016 x 368 x 724 1016 x 368 x 724
G40 DF-36A-070 (X) DF-36B-090 DF-48B-070 DF-48C-090 (X) DF-48C-110 (X) DF-60C-110 (X) DF-60D-135
AFUE 80% 80% 80% 80% 80% 80% 80%
Dimensions HxWxD (in.) 40 x 14-1/2 x 28-1/2 40 x 17-1/2 x 28-1/2 40 x 17-1/2 x 28-1/2 40 x 21 x 28-1/2 40 x 21 x 28-1/2 40 x 21 x 28-1/2 40 x 24-1/2 x 28-1/2
HxWxD (mm) 1016 x 368 x 724 1016 x 446 x 724 1016 x 446 x 724 1016 x 533 x 724 1016 x 533 x 724 1016 x 533 x 724 1016 x 622 x 724
Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.
THIS MODEL
80%
Lennox is proud of the
fact that these products
have earned the Good
Housekeeping Seal.
Year-round comfort – Built to
deliver outstanding comfort,
year after year.
Duralok®Heat Exchanger –
Made of high-quality, patented
ArmorTuf™aluminized steel.
Life-tested to 2-1/2 times agency
requirements (ANSI Standard
Z21.47) for long product life
and durability.
Hot Surface Igniter – Delivers
starting reliability.
Durable Steel Cabinet –
Constructed of heavy-gauge steel
and protected by a high-quality,
textured-paint finish.
*Applies to residential applications only.
See actual warranty certificate for details.