SINGLE-STAGEGAS CONTROL

MObULAT_NGGASCOm_Ot

SHOWNFN_OFF¸' PosmoN

Al1292

Fig. 11 - Control Switch to OFF

6.After waiting five minutes, turn control switch on the gas con- trol to the ON position. Turn the control switch to ON. See Fig. 12.

I

GAS CONTROL SWffCH

MODULATING GAS CONTROL

SHOWN [N "ON" POSfflON

Al1291

Fig. 12 - Control Switch to ON

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

Al1257

Fig. 13 - Furnace Door Replaced (Upflow Configuration)

8.Turn ON the electrical supply to the furnace and wait one nfinute. See Fig. 14.

A92359

Fig. 14 - Turn on Electrical Supply

9. Open the external manual gas valve, See Fig. 15.

it

A06189

Fig. 15 - Open Valve

10.Set the room thermostat "MODE" to "HEAT" and adjust the

set point to a temperature slightly above the room temperat-

ure. This will automatically signal the furnace to start.

11.When the furnace receives the start signal, the combustion air draft inducer is started. When the pressure switch senses that

there is sufficient combustion air, the hot surface igniter is en- ergized.

After the hot surface igniter is heated for about 20 seconds, the

gas valve pernfits gas to flow to the main burners. After igni- tion and a time delay of up to 60 sec, the furnace blower will

start. Variable-capacity furnaces start at low speed until the

control makes the necessary adjustments to operate the blower

at either the low- or high-heat speed.

NOTE: If the main burners fail to ignite after four attempts, the furnace control system will lock out. If lockout occurs, main burners fail to light, or blower does not come on, shut down the furnace and call your dealer for service.

12.Set your thermostat to the temperature that satisfies your

comfort requirements. SUGGESTION: Setting the thermo-

stat back a few degrees--and compensating for the differ-

ence with warmer clothing--can make a big difference in

your fuel consumption on extremely cold days. The few de-

grees at the top of your thermostat "comfort level" are the most costly degrees to obtain.

When the room temperature drops below the temperature selected

on the thermostat, the furnace will switch on automatically. When

the room temperature reaches the setting selected on the thermostat,

the furnace will be automatically switched off.

Continuous Fan Operation -Some thermostats have a "FAN" switch with two selections: AUTO and ON. When the them_ostat is

set on AUTO, the furnace blower cycles on and off, controlled by

the themmstat. In ON position, the furnace blower runs

continuously. Continuous fan keeps the temperature level in your

home more evenly balanced. It also continuously filters the indoor air.

Page 6 Page 8
Page 7
Image 7
Carrier Furnace owner manual Control Switch to on Replace main furnace door. See Fig
Page 6 Page 8

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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