BRYANT

 

 

 

 

 

 

 

 

 

 

 

 

DUAL FUEL

 

 

 

 

 

 

 

 

 

 

 

 

THERMOSTAT

 

SINGLE-STAGE

HEAT PUMP

MODEL DF

 

FURNACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC HOT

 

R

 

 

 

R

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G

 

 

 

G

 

 

 

 

 

 

 

FURNACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W/W1

 

 

 

W

 

 

 

 

 

W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

Y/Y2

 

 

 

Y

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RVS COOLING

O/W2

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y1/W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC COM

 

C

 

 

 

C

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RVS HEATING

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See note 7

 

 

 

 

 

RVS SENSING

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

S1

 

 

 

 

OUTDOOR

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

TEMPERATURE

 

 

 

 

 

 

 

 

CONNECTION

 

S2

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A97401

BRYANT

 

 

 

 

 

 

 

 

 

 

 

 

DUAL FUEL

 

TWO-STAGE OR

 

 

 

 

 

THERMOSTAT

 

VARIABLE SPEED

 

 

 

 

 

MODEL DF

 

FURNACE

HEAT PUMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC HOT

 

R

 

 

 

R

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G

 

 

 

G

 

 

 

 

 

 

 

FURNACE LO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W/W1

 

 

W/W1

 

 

 

 

W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

Y/Y2

 

 

Y/Y2

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

RVS COOLING

O/W2

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

W2

 

 

 

 

 

 

 

FURNACE HI

Y1/W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC COM

 

C

 

 

 

C

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RVS HEATING

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See notes 7 and 8

RVS SENSING

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

S1

 

 

 

 

OUTDOOR

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

TEMPERATURE

 

 

 

 

 

 

 

 

 

CONNECTION

 

 

S2

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A97402

Fig. 11ÐTypical 24-v Circuit Connections using Bryant Model DF Thermostat with Single- or 2-Stage Furnace

BRYANT

 

 

 

 

 

 

 

 

 

 

 

PROGRAMMABLE

 

 

 

 

FK4C

 

 

 

HEAT

THERMOSTAT

 

 

 

FAN COIL

 

 

 

PUMP

MODEL 2S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J1 JUMP

ER

 

 

 

 

 

 

 

 

 

24 VAC HOT

R

 

 

 

 

R

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN

G

 

 

 

 

G

 

 

 

 

 

COOL/HEAT

 

 

 

 

 

 

 

 

 

 

Y

Y/Y2

 

 

 

 

Y/Y2

 

 

 

 

STAGE 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REMOVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J2 JUMPER

HEAT STAGE 2

W/W1

 

 

 

 

W1

 

FOR HEAT

 

 

 

 

 

 

 

 

 

STAGING

 

 

 

 

 

 

 

 

 

HEAT STAGE 3 Y1/W2 W2 W2

RVS COOLING

O/W2

 

 

O

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

24 VAC COMM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RVS HEATING

 

 

B

 

 

Y1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TROUBLE

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

 

 

S1

 

 

 

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONNECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Smart Sequencing Application: Model 2S thermostat with switch C OFF and switch D ON uses single-speed heat pump, FK4 fan coil with selected 2:1 size ratio heaters. Provides 3 stages of auxiliary heat for even heating comfort via W/W1 and Y1/W2. Refer to FK4 Installation Instructions.

A97405

Fig. 12ÐTypical 24-v Circuit Connections using Bryant Model 2S Thermostat

with FK4C Fan Coil and Smart Staging

Ð8Ð

Page 8
Image 8
Bryant 663C instruction manual Ð8Ð

663C specifications

The Bryant 663C is a high-efficiency gas furnace designed to deliver exceptional comfort and reliability in residential heating. As part of the Bryant lineup, it combines advanced technology with durable construction, ensuring homeowners can enjoy warmth during the coldest months while also being energy-efficient.

One of the standout features of the Bryant 663C is its impressive Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE of up to 96%, this furnace is designed to convert a significant portion of the fuel it consumes into usable heat, thus minimizing energy waste. This high-efficiency rating not only translates into lower utility bills but also has a positive impact on the environment.

The 663C is equipped with a two-stage heating system, which allows it to operate at different levels of output depending on the heating demand. This functionality provides enhanced comfort by eliminating temperature swings and maintaining a consistent indoor environment. In addition, the variable-speed blower motor adjusts the airflow based on the heating requirements, further optimizing efficiency and comfort.

Comfort and convenience are paramount in the design of the Bryant 663C. Its compatibility with Bryant's Wi-Fi-enabled smart thermostats allows homeowners to control their heating system remotely, providing ease of access and energy savings. The integration of advanced technology extends to its quiet operation; the unit is designed to minimize sound, ensuring that heating does not disrupt the peaceful ambiance of the home.

Durability is another critical aspect of the Bryant 663C. Constructed with a stainless steel heat exchanger, this furnace not only ensures optimal heat transfer but also resists corrosion, enhancing its lifespan. In addition, the inclusion of a durable cabinet and a heavy-duty blower motor offers further protection and reliability, making it a long-lasting investment for any homeowner.

Overall, the Bryant 663C stands out in the competitive market of heating systems due to its impressive efficiency, advanced features, and a commitment to comfort and longevity. Whether for new constructions or retrofitting an existing home, the 663C is an excellent choice for those seeking a reliable and energy-efficient gas furnace.