CARRIER

 

PROGRAMMABLE

 

THERMOSTAT

FA, FB, FX

MODEL HP

FAN COIL

24 VAC HOT

R

R

 

INDOOR FAN

G

G

HEAT STAGE 2

W/W1

W2 *

 

COOL/HEAT

Y/Y2

E *

STAGE 1

W3 *

 

 

 

RVS COOLING

O/W2

 

NOT USED

Y1/W2

 

24 VAC COM

C

C

NOT USED

B

 

TROUBLE

L

* IF AVAILABLE

 

OPTIONAL

S1

 

OUTDOOR

 

 

SENSOR

S2

 

CONNECTION

 

HEAT

PUMP

R

W2

Y

O

C

A97561

CARRIER

PROGRAMMABLE

THERMOSTAT

MODEL HP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC HOT

 

R

 

 

 

 

 

 

 

 

INDOOR FAN

 

G

 

 

 

 

 

 

 

 

 

HEAT STAGE 2

 

W/W1

 

COOL/HEAT

 

 

 

 

 

 

 

Y/Y2

 

STAGE 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RVS COOLING

 

 

 

O/W2

 

NOT USED

 

 

 

 

 

 

Y1/W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC COM

 

C

 

 

 

 

 

 

 

 

NOT USED

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

TROUBLE

 

 

L

 

 

 

 

 

 

 

 

 

OPTIONAL

 

 

 

S1

 

OUTDOOR

 

 

 

 

 

SENSOR

 

 

 

 

 

 

CONNECTION

 

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FA, FB, FX

FAN COIL

W3

R

G

W2

E

C

ONE

HEAT OUTDOOR PUMP THERMOSTAT

R

 

W2

ODT

 

Y

O

C

 

 

 

 

NOTE: Remove wires from crimp nut in indoor fan coil

 

 

 

 

when installing outdoor thermostat.

 

 

 

 

 

IMPORTANT: When using outdoor thermostat, W2 must be

 

 

 

 

energized when requesting supplemental heat.

CARRIER

 

 

 

CARRIER

 

 

 

TWO

PROGRAMMABLE

 

PROGRAMMABLE

 

 

THERMOSTAT

FV4A

THERMOSTAT

FA, FB, FX

HEAT

OUTDOOR

MODEL HP

FAN COIL

MODEL HP

FAN COIL

PUMP

THERMOSTATS

 

 

A97562

HEAT

PUMP

24 VAC HOT

INDOOR FAN

HEAT STAGE 2

COOL/HEAT STAGE 1

RVS COOLING

NOT USED

24 VAC COM

NOT USED

TROUBLE

OPTIONAL OUTDOOR SENSOR CONNECTION

 

W3

ODT

R

 

 

 

EHR

R

R

G

 

 

 

G

 

W/W1

 

 

 

W2

W2

Y/Y2

 

 

 

O/W2

 

Y

 

 

EHR

 

O

Y1/W2

 

 

 

 

E

ODT

 

 

C

EHR

 

 

C

B

C

 

 

L

 

 

S1

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC HOT

 

R

 

 

 

 

 

 

INDOOR FAN

 

G

 

 

 

 

 

 

 

HEAT STAGE 2

 

W/W1

COOL/HEAT

 

 

 

 

 

 

Y/Y2

STAGE 1

 

 

 

 

 

 

 

 

 

 

 

 

 

RVS COOLING

 

 

 

O/W2

NOT USED

 

 

 

 

 

Y1/W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC COM

 

C

 

 

 

 

 

 

NOT USED

 

 

B

 

 

 

TROUBLE

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

OPTIONAL

 

 

 

S1

OUTDOOR

 

 

 

 

SENSOR

 

 

 

 

 

CONNECTION

 

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DH

J1 JUMPER

R

R

G

 

W1

W2

W2

J2 JUMPER

 

Y/Y2

Y

O

O

C

C

Y1

 

A97564

NOTE: Remove wires from crimp nut in indoor fan coil when installing outdoor thermostats.

IMPORTANT: When using outdoor thermostats, W2 must be energized when requesting supplemental heat.

A97563

Fig. 12—Typical 24-v Circuit Connections using Carrier Model HP Thermostat with Fan Coils and No Outdoor

Thermostat, 1 Outdoor Thermostat, or 2 Outdoor Thermostats

7

Page 7
Image 7
Carrier 38EYA instruction manual Programmable Thermostat

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.