CARRIER

 

 

 

 

 

 

 

 

 

 

DUAL FUEL

 

 

 

 

 

 

 

 

 

 

THERMOSTAT

 

SINGLE-STAGE

HEAT PUMP

MODEL DF

 

FURNACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC HOT

 

 

 

 

 

 

 

 

 

 

 

R

 

R

 

 

 

R

 

 

 

 

FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

G

 

 

 

G

 

 

 

 

FURNACE

 

 

 

 

 

 

 

 

 

 

 

 

W/W1

 

 

 

W

 

 

 

W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

COMPRESSOR

Y/Y2

 

 

 

Y

 

 

 

RVS COOLING

 

 

 

 

 

 

 

 

 

 

 

O

O/W2

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A97538

CARRIER

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

COMPRESSOR

Y/Y2

 

 

Y/Y2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RVS COOLING

 

 

 

 

 

O

 

 

 

O

O/W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W2

 

 

 

 

FURNACE HI

Y1/W2

 

 

 

 

 

 

 

 

 

 

 

 

Y1

 

 

 

C

24 VAC COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RVS HEATING

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See notes 7 and 8

RVS SENSING

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

S1

 

 

 

 

OUTDOOR

 

 

SENSOR

 

 

 

 

 

 

 

 

 

TEMPERATURE

 

 

 

 

 

 

 

 

 

CONNECTION

 

 

S2

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A97539

Fig. 14—Typical 24-v Circuit Connection using Carrier Model DF Thermostat with Single- or 2-Stage Furnace

CARRIER

PROGRAMMABLE

THERMOSTAT

MODEL 2S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC HOT

 

R

 

 

 

 

 

 

 

 

 

FAN

 

G

 

COOL/HEAT

 

 

 

Y/Y2

 

STAGE 1

 

 

 

 

HEAT STAGE 2

 

 

 

 

 

 

 

 

W/W1

 

 

 

 

 

 

 

 

 

HEAT STAGE 3

 

 

 

Y1/W2

 

RVS COOLING

 

 

 

 

 

 

O/W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC COMM

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

RVS HEATING

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TROUBLE

 

 

L

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

 

 

S1

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

CONNECTION

 

 

 

 

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FV4A

HEAT

FAN COIL

PUMP

DH

J1 JUMPER

 

R

R

 

G

 

Y/Y2

Y

 

REMOVE

 

J2 JUMPER

W1

FOR HEAT

 

STAGING

W2

W2

O

O

C

C

Y1

 

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.

A97565

Fig. 15—Typical 24-v Circuit Connections using Carrier Model 2S Thermostat

with FV4A Fan Coil and Smart Staging

9

Page 9
Image 9
Carrier 38EYA instruction manual Thermostat SINGLE-STAGE Heat Pump Model DF

38EYA specifications

The Carrier 38EYA is a high-efficiency, ducted air conditioning system that stands out in the HVAC industry for its blend of advanced technology, reliable performance, and energy-saving capabilities. Designed for residential applications, the 38EYA model showcases Carrier’s commitment to innovation and comfort.

One of the key features of the Carrier 38EYA is its outstanding SEER (Seasonal Energy Efficiency Ratio) rating, often exceeding 16, which underscores its energy efficiency. This high rating means that the unit consumes less electricity, leading to lower utility bills while maintaining a comfortable indoor climate. The system is equipped with a variable-speed compressor that adjusts its output to meet the cooling demands of the space, providing precise temperature control while minimizing energy consumption.

In addition to its efficiency, the 38EYA includes advanced refrigerant technology. Utilizing R-410A, a more environmentally friendly refrigerant, this unit contributes to reduced global warming potential compared to older refrigerants. The Carrier 38EYA also features a corrosion-resistant steel cabinet, ensuring durability and longevity in varying weather conditions.

User-friendly operation is enhanced through the optional smart thermostat, which allows homeowners to control their cooling system remotely. This integration with smart technology provides convenience and helps optimize energy use, further enhancing savings on energy costs. Additionally, the whisper-quiet operation of the system ensures that homeowners can enjoy a peaceful environment without the distraction of loud machinery.

Furthermore, the Carrier 38EYA incorporates a multi-stage filtration system that improves indoor air quality by capturing dust, allergens, and other pollutants. This feature is particularly beneficial for households with allergy sufferers or pets.

Overall, the Carrier 38EYA represents a blend of energy efficiency, advanced technology, and user-friendly features, making it a top choice for homeowners seeking a reliable and effective home cooling solution. Its commitment to sustainability, combined with optimal performance, positions the 38EYA as a leading option in modern air conditioning systems, ensuring comfort and satisfaction for years to come.