Carrier 38YSA instruction manual Wiring Diagram Notes

Page 10

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. 13—Typical 24-v Circuit Connections using Carrier Model DF Thermostat with Single- or 2-Stage Furnace

WIRING DIAGRAM NOTES:

1.CARRIER THERMOSTAT WIRING DIAGRAMS ARE ONLY ACCU- RATE FOR MODEL NUMBERS BEGINNING WITH TSTAT _ _ _ _ _

_ _.

2.WIRING MUST CONFORM TO NEC OR LOCAL CODES.

3.SOME UNITS ARE EQUIPPED WITH PRESSURE SWITCH(ES), TEM- PERATURE SWITCH, OR 5-MINUTE COMPRESSOR CYCLE PRO- TECTION. CONNECT 24-V FIELD WIRING TO FACTORY- PROVIDED STRIPPED LEADS.

4.A LIQUID-LINE SOLENOID VALVE IS REQUIRED ON SOME UNITS.

5.THERMOSTATS ARE FACTORY CONFIGURED WITH 5-MINUTE COMPRESSOR CYCLE PROTECTION AND 4 CYCLES PER HR LIMIT. SEE THERMOSTAT INSTALLATION INSTRUCTIONS FOR DETAILS.

6.TO STAGE ELECTRIC RESISTANCE HEAT, CONSULT OUTDOOR THERMOSTAT INSTALLATION INSTRUCTIONS.

7.FOR DUAL FUEL THERMOSTATS, UNDERLINED LETTER ON DUAL TERMINAL INDICATES ITS USAGE.

FOR EXAMPLE: O/W2 MEANS O

O/W2 MEANS W2

OUTDOOR TEMPERATURE SENSOR MUST BE ATTACHED IN ALL DUAL FUEL INSTALLATIONS.

JUMPER WIRE BETWEEN O/W2 AND L THERMOSTAT TERMI- NALS MUST BE PRESENT.

8.Y1 AND O CONNECTIONS TO 2-STAGE FURNACES MAY NOT EXIST OR MAY ONLY BE A WIRE RATHER THAN A SCREW TERMINAL.

LEGEND

24-V FACTORY WIRING

24-V FIELD WIRING

FIELD SPLICE CONNECTION

ODT

OUTDOOR THERMOSTAT

EHR

EMERGENCY HEAT RELAY

SHR

SUPPLEMENTAL HEAT RELAY

 

 

 

A97413

10

Image 10
Contents Check Equipment and Job Site Unpack UnitClearance Requirements DimensionsInstall on a Solid, Level Mounting Pad Operating AmbientsCheck Defrost Thermostat Thermostatic Expansion ValveMake Piping Connections Accessory Usage Make Electrical ConnectionsStart-Up Install Electrical AccessoriesCompressor Crankcase Heater Programmable Other HP Thermostat VAC COM Not Used Trouble Optional Outdoor Sensor Connection Smart Heat Pump W2D W2T JW1 Wiring Diagram Notes Heating only Procedure Cooling only Procedure ExampleCheck Charge Required Liquid-Line Temperature F Final Checks

38YSA specifications

The Carrier 38YSA is a cutting-edge cooling solution designed to meet the demands of modern residential and commercial applications. Renowned for its energy efficiency and reliable performance, the 38YSA series represents the pinnacle of Carrier’s commitment to innovation in HVAC technology.

One of the standout features of the Carrier 38YSA is its energy efficiency. It utilizes advanced inverter technology, allowing it to adjust its cooling output based on the specific needs of the indoor environment. This technology not only reduces energy consumption but also minimizes fluctuations in temperature, providing a more consistent and comfortable living or working space. The unit achieves impressive SEER (Seasonal Energy Efficiency Ratio) ratings, making it an environmentally friendly choice.

The 38YSA is equipped with a variable-speed compressor, which optimizes performance by operating at different speeds. This capability allows the system to ramp up or down in accordance with the cooling load, ensuring optimal comfort and minimizing energy usage. This technology also translates to quieter operation, making the 38YSA ideal for residential neighborhoods and low-noise environments.

In terms of features, the Carrier 38YSA incorporates smart controls that can be operated remotely via mobile devices. This feature provides users with the flexibility to manage their cooling systems from anywhere, optimizing comfort while on the go. The user-friendly interface allows for easy programming of temperature schedules, further enhancing energy savings and comfort.

Durability is another characteristic that sets the Carrier 38YSA apart. The unit is engineered with robust materials and components designed to withstand harsh weather conditions. Its corrosion-resistant casing and high-quality condenser coils ensure longevity and reliable performance over the years.

Furthermore, the 38YSA is designed with eco-friendly refrigerants, contributing to a reduction in global warming potential, which aligns with increasing environmental regulations. The commitment towards sustainability is evident in Carrier’s entire product line, emphasizing the importance of creating energy-efficient and eco-conscious cooling systems.

Overall, the Carrier 38YSA is a sophisticated and efficient cooling solution, integrating advanced technologies to deliver optimal comfort, reliability, and energy savings. Its blend of innovative features, durable design, and environmental responsibility makes it a top choice for anyone seeking effective air conditioning solutions.