◆
g71P variable Capacity gas Furnace 95% AFUE
Home Comfort Systems
g71P
The quietest furnace you can buy*—
and one of the most efficient!
Featuring new Precise Comfort™
and AirFlex™ Technologies
Download from Www.Somanuals.com. All Manuals Search And Download.
AIRFlEx™ TECHNOlOgY
A blower setting for
every region
The G71P’s innovative AirFlex™
technology allows your Lennox
dealer to select the airside
performance best suited to your
lifestyle, home design and
geographic location.
MINIMUM SOUND
MAxIMUM EFFICIENCY
The G71P delivers a highly-efficient
95% AFUE. Think of it this way: a
standard furnace operates like a car
in stop-and-go traffic–it's either
moving or sitting still, and burning
lots of fuel in the process. The G71P
operates more like highway driving
with the cruise control on, making
slight adjustments that allow
The G71P furnace is much quieter
than other furnaces. Its variable
speed motor ramps up and
down slowly, so there’s no
sudden blast of air at startup.
And a specially insulated cabinet,
featuring patented noise-reducing
construction and SilentComfort™
technology, further reduces
operating sound to an
Settings can be chosen to minimize
sound, reduce humidity, provide
increased airflow, or to combine
functions as needed. When paired
with a Lennox® air conditioner or
heat pump, the G71P is able to
provide customized comfort from
the outdoor cold of winter to the
extremes of summertime conditions.
maximum fuel efficiency.
industry-leading low level.
The G71P's variable speed motors
use up to two-thirds less electricity
than a standard single-speed motor,
too, which means it can significantly
reduce your energy costs. You may
also qualify for utility rebates.***
TEMPERATURE CONTROl COMPARISON
3-YEAR HEATINg SAvINgS
$4000
$3530
$3500
$3000
$2500
Single-stage furnace
$2240
G71P Variable-Capacity Furnace
$2000
$1500
$1000
$500
0
SOUND INTENSITY
The G71P is up to
8 times quieter than
95%
vs. 65%
95%
vs. 55%
AFUE
its closest competitor1
95% efficient G71P Gas Furnace vs.
55% and 65% AFUE units
This chart depicts potential energy savings you can
expect from the G71P furnace, versus older furnaces
with lower efficiency ratings. Criteria used in this
example are 2,000 full-load heating hours, with a
60,000 Btuh heating design load and $1.281 ccf for
gas. Your actual savings may vary, depending on the
weather patterns in your local area, local fuel rates
and your individual lifestyle.
1Based on sound pressure levels during steady-state, high-fire operation of Lennox G71P-36B-070 and leading competitive
units at mid-point temperature rise and minimum external static pressure when set up per Section 4.5.3 of ARI 260.
Source: U.S. Environmental Protection Agency (EPA)
national average energy rates.
***Check with your local utility about rebates in your area.
3
Download from Www.Somanuals.com. All Manuals Search And Download.
IMPROvED AIR QUAlITY
When you set your thermostat to “FAN,” the G71P continues to slowly
circulate air throughout your home at two-thirds less cost than a traditional
blower motor. That means you can run the fan constantly without significantly
increasing operating costs. It also means better indoor air quality—low-speed
fan operation increases the effectiveness of your filters, allowing them to
capture and remove more contaminants.
The G71P offers even greater system
efficiency when it's paired with an
electric heat pump. Called Dual
Fuel, this combination controls
heating costs by seamlessly
CUSTOMIzED COMFORT
The g71P variable-capacity furnace is designed to easily integrate with
other quality Lennox® products, assuring there’s a custom solution to match
your exact comfort level:
alternating between energy sources,
depending on outdoor conditions
and prevailing energy costs.
xC21 air conditioner is the most quiet and efficient central air conditioner
you can buy†
PureAir™ air purification system cleans the air inside your home better
For other ways to make your
home more efficient, visit
than any other single system you can buy
ComfortSense™ touchscreen thermostat allows you to easily program ideal
temperature and humidity settings to match your family’s lifestyle
Harmony III™ zoning system gives you room-by-room control of your
comfort and energy costs
Dave lennox Signature® Collection g71P Specifications
G71P
36B-070
G71P
36C-090
G71P
60C-090
G71P
60C-110
G71P
60D-135
Model
Heating Efficiency (AFUE) 95%
Dimensions HxWxD (in.) 40 x 17-1/2 x 28-1/2
HxWxD (mm) 1016 x 446 x 724
95%
40 x 21 x 28-1/2
1016 x 533 x 724
95%
40 x 21 x 28-1/2
1016 x 533 x 724
95%
40 x 21 x 28-1/2
1016 x 533 x 724
95%
40 x 24-1/2 x 28-1/2
1016 x 622 x 724
Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.
Many Lennox® home
comfort systems meet
EnERGY STAR® requirements
when used with appropriate
THIS MODEL
95%
components. Ask your
dealer for details.
†
A combination of sound ratings established per ARI's test standard: ꢀ70; and efficiency ratings established per ARI's test standard: ANSI/ARI ꢀ10/ꢀ40-ꢀ005.
4
Download from Www.Somanuals.com. All Manuals Search And Download.
OUTSTANDINg FEATURES FOR ExCEPTIONAl COMFORT AND EFFICIENCY
Duralok Plus® Heat Exchanger –
Made of patented ArmorTuf™ steel to
ensure high reliability and efficiency.
Special Sound-Absorbing Insulation –
Further reduces sound for quiet operation.
Surelight® Igniter – Silicone nitride
construction ensures long product life
and reliable operation.
variable-Capacity gas valve –
Adjusts capacity output in 1%
increments for the ultimate in
precision comfort.
Robust Stainless Steel Secondary
Heat Exchanger – Time-tested design
allows the furnace to achieve high efficiency
levels by capturing additional heat.
variable Speed Blower Motor –
Provides a quiet, consistent flow of air
for enhanced comfort, efficiency and
humidity control.
Surelight Control Board – Controls
all furnace operations to ensure high
reliability and efficiency. Direct
readout diagnostics for simple,
quick troubleshooting.
g71P
95% afUE
the quietest furnace
you can buy*—and one
of the most efficient!
Durable Steel Cabinet – Made to
last with an attractive, high-quality
textured paint finish.
featuring new Precise
comfort™ technology
Quality you can trust.
Continuing our commitment to environmentally responsible design, the G71P
delivers the highest possible levels of energy efficiency and quiet operation, so
you can count on years of superior comfort and energy-saving performance.
*Based on sound pressure levels during steady-state, high-fire operation of Lennox G71P-36B-070 and leading competitive units at mid-point temperature
rise and minimum external static pressure when set up per Section 4.5.3 of ARI ꢀ60.
5
Download from Www.Somanuals.com. All Manuals Search And Download.
Air conditioner or heat pump
Thermostat
Furnace or air handler
Filtration device
Germicidal light
Indoor coil
Humidifier
HEPA bypass filtration system
Energy recovery ventilator
10 Supply duct
11 Return duct
12 Dehumidifier system
13 Residential generator
CUSTOMIzE YOUR COMFORT
Lennox® heating, cooling and indoor air quality products are designed to
provide efficient, economical comfort—not only as individual units, but also
together as an integrated system. This combined network of products delivers
on every comfort count, from consistent temperatures and balanced humidity to improved indoor air quality. Lennox
also offers a line of residential generators, which provide safe, reliable standby power in the event of outages.
DEAlERS YOU CAN COUNT ON
Choosing the right dealer for your home’s heating, cooling and air quality needs is every bit as important as choosing the
right brand. We think you’ll agree our independent dealers are a big reason you can count on quality customer service
whenever you call. Your Lennox dealer’s dedication to quality shows in his knowledge, training and expertise in designing
the right system for your home, installing it properly and keeping it running perfectly for many years to come.
© Lennox Industries Inc. 2007
(36W78) G71P 3/08
PC50284
Download from Www.Somanuals.com. All Manuals Search And Download.
|