ComfortFan TM - On all but the base series furnace, the blower

speed can be increased or decreased if desired due to change of

seasons, large gatherings in your home, etc. Simply change your

FAN from ON to OFF for I to 3 seconds (or AUTO depending on

your thermostat), and then return to ON. The blower will switch to

the next higher speed. There are at least three speeds to choose

from. If the blower is running on its highest speed, a request to change will direct the blower to return to its lowest speed.

SHUTTING DOWN YOUR FURNACE

Should you need to shut down your furnace for service or

maintenance, you will need to turn the furnace off. The following

procedures must be followed:

1.Set your room thermostat to the lowest temperature setting and set the "MODE" to "OFF." See Fig. 16.

A09564

Fig. 16 - Lowest Temperature Setting

2. Close the external manual gas valve. See Fig. 17.

1

4.Remove main furnace door. See Fig. 10.

5.Turn control switch on the gas control to OFF position. See Fig. 19.

StN6LE-SrA_E AS CONTROL

l_<_STAGEC,AS CONTROL

MODULATINGGAS CONTROL

SHOWN FN OFF' POSmON

Al1292

Fig. 19 - Control Switch to OFF

6.Replace main furnace door. See Fig. 13.

7.If the furnace is being shut down because of a malfunction, call your dealer as soon as possible.

[]NIT AND PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in unit component or property damage.

Furnace is not to be installed, operated, and then turned off and left turned off in an unoccupied structure during winter. See "Winterization" procedures in this manual.

A06188

Fig. 17 - Close the External Manual Valve

3. Turn off electrical supply to the furnace. See Fig. 18.

A92185

Fig. 18 - Turn Off Electrical Supply

PERFORMING ROUTINE MAINTENANCE

NOTE:

 

 

The

qualified

 

installer

or

agency

must

use

 

only

factory-authorized

 

replacement

parts,

 

kits,

and

accessories

when

modifying

 

this

product.

 

 

 

 

 

 

 

 

 

 

 

 

 

Installing

and servicing

of heating

equipment

can be hazardous due

to gas

and

electrical components.

 

 

 

 

 

 

 

 

 

 

Only

trained

and

qualified

personnel

 

should

install,

repair,

or

service

heating

equipment.

 

Untrained

 

personnel

can

perform

basic

maintenance

functions

such

as cleaning

 

and

replacing

air

filters.

 

All other

 

operations

nmst

be

performed

by

trained

 

service

personnel.

 

Observe

safety

precautions

 

in

this manual,

on

tags,

and

on labels

attached

to

the

furnace

and

other

safety precautions

that

may apply.

With proper maintenance and care, your furnace will operate

econonfically and dependably. Instructions for basic maintenance

are found on this and the following pages. However, before

beginning maintenance, follow these safety precautions:

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal iniury or death.

Turn off electrical power supply to your furnace and

install lockout tag before removing the access doors to service or perform maintenance.

Page 49 Page 51
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Carrier owner manual Shutting Down Your Furnace
Page 49 Page 51

Furnace specifications

Carrier has long been synonymous with heating and cooling, and their range of furnaces exemplifies their commitment to innovation, efficiency, and reliability. A Carrier furnace is designed to provide comfortable warmth during the colder months while optimizing energy use, which is crucial in today’s environmentally conscious landscape.

One of the standout features of Carrier furnaces is their high-efficiency ratings. Many of their models boast an Annual Fuel Utilization Efficiency (AFUE) of up to 98%, meaning that they convert nearly all the fuel they consume into usable heat. This not only leads to lower energy bills but also reduces carbon emissions, making it an eco-friendly choice.

Carrier employs a range of advanced technologies to enhance performance. One key technology is the Infinity control system, which allows homeowners to monitor and adjust their heating settings remotely through a smartphone app. This system uses predictive algorithms to learn a homeowner's preferences, ensuring optimal comfort and efficiency.

Additionally, some Carrier furnaces utilize modulating technology. Unlike traditional furnaces that can only operate at full or partial capacity, modulating furnaces can adjust their output to match the specific heating demand of a home. This results in more even heating, reduced temperature swings, and greater energy savings.

Carrier also prioritizes quiet operation, with many of their models featuring a sound-dampening design. This ensures that the furnace runs discreetly in the background, minimizing disruptive noises while maintaining consistent comfort.

Durability and longevity are critical characteristics of Carrier furnaces. Each unit is built with high-quality materials and rigorous testing, ensuring that it can withstand the rigors of daily use in various climates. This commitment to quality means that homeowners can expect years of reliable service from their Carrier furnace.

Finally, Carrier emphasizes ease of installation and maintenance. With clear documentation and support from certified technicians, homeowners can rest assured that their furnace will be installed correctly and serviced as needed.

In summary, Carrier furnaces represent a blend of efficiency, innovation, and reliability. With high AFUE ratings, advanced technologies like the Infinity control system, modulating operation, quiet performance, and durable construction, they stand out as a top choice for homeowners seeking optimal heating solutions.
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