Lennox SunSource User manual

Introducing

a new ray

of light

in home

comfort.

The industry’s ﬁrst

solar-assisted

central heat pump.

Source of

alternative energy

• Patent-pending solar-assist

technology uses a combination

of solar energy and electricity

to reduce peak demand on

home electric usage

• Operates in a wide range of

sunlight and temperature

conditions

• ENERGY STAR®qualiﬁed

Source of

innovative comfort

• Delivers even heating and

cooling in every room*

• Highly reliable, with patented

SmartHinge™panels that require

little routine maintenance

Your ﬁrst step toward living off the grid.

Far more affordable than a full-house solar system, the SunSource™Comfort System, part of the

Dave Lennox Signature®Collection, is a ﬁrst-of-its-kind innovation that takes you away from the

burden of high utility bills and moves you solidly toward the future.

How it Works

Draws energy from the sun

During peak daylight hours, the

SunSource Comfort System gets help

from a solar panel to heat and cool

your home. It uses renewable solar

energy to power the outdoor fan

motor, reducing the utility-provided

electricity needed for operation. The

solar-assist increases the system

efﬁciency, reducing the power

consumed by as much as 8%.

*Based on improved temperature control offered

by two-stage compressor operation.

Solar by day. Electric by night. Savings all year.

Taking a step to conserve energy with a SunSource Comfort System can save you

hundreds of dollars on your utility bills every year.

A SunSource Comfort System makes use of all available solar energy to reduce

electric consumption—full sun is not a requirement. On days with limited sun

exposure, the SunSource Comfort System continues to operate efﬁciently using

metered electricity provided by your power company.

That means no matter where you live, the SunSource Comfort System is a viable

renewable energy solution that can make a positive change in your home

environment…and global environment.

**Source: U.S. Energy Information Administration, 2007

Solar power is a viable energy source

in nearly every U.S. city. This map

shows the amount of electricity

capable of being produced by 2007

levels of available solar radiation.

Source: Solar Energy Industries Association

Renewable Energy Coast-to-Coast

Heating and

Air Conditioning

54%**

The amount of the sun’s energy that reaches the surface of

the Earth every hour is greater than the total amount of

energy that the world’s human population uses in a year.

Source: U.S. Department of Energy, 2008

Studies have shown that more

than half of your household

energy use goes to heating

and cooling.**

Dave Lennox Signature®Collection XPG20 Specifications

The SunSource™solar-assisted heat pump, tested according to the Department of Energy central heat pump test procedure, and with zero solar power input, yields these performance metrics:

With No Solar-Assist

Outdoor unit

model

Indoor unit

model

SEER EER

Cooling Capacity

(BTUH)

HSPF

(Region IV)

Heating Capacity

(BTUH)

Sound Rating

(dBA)

Dimensions

HxWxD (in.)

Dimensions

HxWxD (mm)

XPG20-036 CBX32MV-048

18.20*** 12.7

37,800

9.70***

34,200

72 37 x 35-1/2 x 39-1/2 940 x 902 x 1003

When this same equipment is tested by the same procedure, but with 170 watts of DC power (simulating power input from a nominal 205 watt solar module) the standard test procedure yields

these performance metrics:

With 170 Watt DC Solar-Assist

XPG20-036 CBX32MV-048

20.00 13.7

38,000

10.70

34,200

75 37 x 35-1/2 x 39-1/2 940 x 902 x 1003

In actual applications, the availability and intensity of solar energy varies from locale to locale. The above metrics suggest lower and upper bounds for estimating performance.

Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.

16.00-18.20

21.0013.00

THIS MODEL

Proper sizing and installation of equipment

is critical to achieve optimal performance.

Split system air conditioners and heat

pumps must be matched with appropriate

coil components to meet ENERGY STAR®

criteria. Ask your Lennox dealer for details,

or visit www.energystar.gov.

Higher efﬁciency plus superior comfort with less noise.

Now it’s possible for you to reduce the environmental impact of your home’s heating and cooling system without sacriﬁcing

your comfort. With efﬁciency ratings of up to 18.20 SEER and 9.70 HSPF***, Lennox’ SunSource™heat pump takes heating

and cooling technology to new heights with help from renewable solar power.

Optimized for use with the

Humiditrol®whole-home

dehumidiﬁcation system

As part of a complete comfort package, the Humiditrol

system delivers a level of humidity control never before

available. Less moisture in the air not only feels better, it

improves overall indoor air quality, too.

What a difference quiet makes

The SunSource heat pump is engineered with Lennox’

exclusive SilentComfort™technology for quiet performance

day in and day out. A patent-pending fan design, two-stage

operation and an insulated compressor compartment also

help keep sound at a minimum.

Conserves energy while preserving

the environment

The SunSource heat pump is designed with a two-stage

scroll compressor that uses R410A refrigerant, which meets

the U.S. Environmental Protection Agency’s standards

for ozone and environmental safety.

Reducing your carbon footprint—one step at a time

Every SunSource heat pump will offset 376 pounds of CO2per year.

That’s the equivalent of planting seven mature trees, or carpooling

to work one day each week. If thousands of people joined in, the

change would substantially reduce environmental emissions.

Choosing an ENERGY STAR®product like the

XPG20 SunSource™Comfort System can help

you improve comfort and save energy costs. You

may also be able to qualify for utility rebates and

tax credits. By creating a more efﬁcient home environment,

you are contributing to a cleaner global environment.

***SEER and HSPF are for operation without solar power input.

First-of-its-kind system. Ahead-of-the-curve features.

SilentComfort™Fan Grille –

Uses patent-pending, vortex-suppression technology to reduce

sound of airﬂow exiting unit, providing a quieter environment

outside your home.

Electronically Commutated Motor (ECM) –

Uses utility-provided electricity to power the system at night

and whenever sunlight is unavailable.

Factory-Installed Lennox®System Operations Monitor –

Continually reviews system performance to allow fast

troubleshooting, which assures you of worry-free performance.

Patent-Pending Fan-Drive System –

Uses a combination of solar energy and electricity to reduce

peak demand on home electric usage.

Two-Stage Scroll Compressor –

Operates at low stage most of the time for quieter, more efﬁcient

performance. Plus, it cools your home using the ozone-responsible

R410A refrigerant.

Insulated Compressor Compartment –

Minimizes operating sounds with innovative materials

and industry-leading, vibration-isolating mounts.

High-Efficiency Outdoor Coil –

Provides exceptional heat transfer and low air resistance for

high-efﬁciency operation that can lower your cooling bills.

SmartHinge™Louvered Coil Protection –

Allows quick, easy access to interior components from all sides,

so the unit can be serviced in minimal time, saving you money.

Single Solar Panel – Provides freely available renewable energy

to offset the electric usage of the heating and cooling system.

SunSource™

Comfort

System

Up to 18.20 SEER

and 9.70 HSPF*

First comfort

system of its kind.

Warranty

10-year limited warranty on the compressor and all

remaining covered components. Excludes solar panel.

Note: Applies to residential applications for condenser and heat pump only.

See actual warranty certiﬁcate for details.

*SEER and HSPF are for operation without solar power input.

PC56258(49W46) XPG20 2/09

Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX.

1Air conditioner or heat pump

2Thermostat

3Furnace or air handler

4Filtration device

5Germicidal light

6Indoor coil

7Humidifier

8HEPA bypass filtration system

9 Energy recovery ventilator

 Supply duct

 Return duct

 Dehumidifier system

 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.

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