Carrier Physical Data Unit 50VT-A, Minimum Airflow for Reliable Electric Heater Operation CFM

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50VT-- A

Table 1 – Physical Data - Unit 50VT-A

 

 

 

 

 

 

 

 

 

 

 

50VT-A24

50VT-A30

 

50VT-A36

 

50VT-A42

 

50VT-A48

50VT-A60

Unit Size

2

2.5

 

3

 

3.5

 

4

5

Shipping Weight (lb)

354

346

 

426

 

472

 

460

506

(kg)

161

157

 

193

 

214

 

209

230

Compressor Quantity

 

 

 

 

1

 

 

 

Type

 

 

 

 

Scroll

 

 

Refrigerant

 

 

 

 

R-410A

 

 

Refrigerant Quantity (lb)

11.1

10.3

 

9.9

 

11.3

 

12.5

15.2

Quantity (kg)

5.0

4.7

 

4.5

 

5.1

 

5.7

6.9

Refrigerant Metering Device

 

 

 

Indoor TXV, Outdoor

Dual Accuraters

 

 

 

Orifice OD (in)

0.032 (2)

0.037 (2)

 

0.038 (2)

 

0.040 (2)

 

0.040 (2)

0.049 (2)

(mm)

0.81 (2)

0.94 (2)

 

0.97 (2)

 

1.02 (2)

 

1.02 (2)

1.24 (2)

Outdoor Coil

 

 

 

 

 

 

 

 

 

Rows...Fins/in,

2...21

2...21

 

2...21

 

2...21

 

2...21

2...21

face area (sq. ft.)

13.6

13.6

 

13.6

 

17.5

 

17.5

23.3

Outdoor Fan

 

 

 

 

 

 

 

 

 

Nominal Airflow (cfm)

2500

2700

 

3100

 

3100

 

3100

3500

Diameter (in.)

24

24

 

26

 

26

 

26

26

Diameter (mm)

610

610

 

660

 

660

 

660

660

Motor hp (rpm)

1/10 (810)

1/5 (810)

 

1/5 (810)

 

1/5 (810)

 

1/5 (810)

1/4 (810)

Indoor Coil

 

 

 

 

 

 

 

 

 

Rows...Fins/in,

3...17

3...17

 

3...17

 

3...17

 

3...17

3...17

face area (sq. ft.)

3.7

3.7

 

4.7

 

4.7

 

5.6

5.6

Indoor Blower

 

 

 

 

 

 

 

 

 

Nominal Airflow (cfm)

800

1000

 

1200

 

1400

 

1600

1750

Size (in.)

10 x 10

10 x 10

 

11 x 10

 

11 x 10

 

11 x 10

11 x 10

Size (mm)

254 x 254

254 x 254

 

279 x 254

 

279 x 254

 

279 x 254

279 x 254

Motor hp (rpm)

1/2

1/2

 

3/4

 

3/4

 

1

1

High Pressure Switch (psig)

 

 

650 +/- 15

 

 

 

Cutout

 

 

 

 

 

Reset (Auto)

 

 

420 +/- 25

 

 

 

Loss-of-Charge/Low Pressure Switch (psig)

 

 

20 +/- 5

 

 

 

Cutout

 

 

 

 

 

Reset (Auto)

 

 

45 +/- 10

 

 

 

Return Air Filters

20x20x1

20x24x1

 

24x30x1

24x36x1

disposable (in)

 

(mm)

508x508x25

508x610x25

 

610x762x25

610x914x25

*Required filter sizes shown are based on the larger of the AHRI (Air Conditioning Heating and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/minute for throwaway type or 450 ft/minute for high ---capacity type. Air filter pressure drop for non ---standard filters must not exceed 0.08 IN. W.C.

{If using accessory filter rack refer to the filter rack installation instructions for correct filter size and quantity. } For 460 volt units, add 14 lb (6.4 kg) to the weight.

Table 2 – Minimum Airflow for Reliable Electric Heater Operation (CFM)

SIZE

50VT-A24

50VT-A30

50VT-A36

50VT-A42

50VT-A48

50VT-A60

AIRFLOW (CFM)

800

1025

1250

1400

1710

1800

TOP COVER

INDOOR

THERMOSTAT

RETURN

AIR

FROM

POWER

SOURCE

DISCONNECT

PER NEC

POWER ENTRY

CONTROL ENTRY

A09098

Fig. 11 - Typical Installation

10

Image 10
Contents Table of Contents Safety ConsiderationsCheck Equipment Receiving and InstallationIntroduction Provide Unit Support50VT-A24-30 Unit Dimensions 50VT-A36-60 Unit Dimensions Large Curb Rigging/Lifting of Unit See Fig Rig and Place UnitInspection Unit Falling HazardSelect and Install Ductwork Personal Injury HazardHigh-Voltage Connections Install Electrical ConnectionsProvide for Condensate Disposal Unit Component Damage HazardStandard Connections Special Procedures for 208-V OperationAccessory Electric Heaters Installation Control Voltage ConnectionsPhysical Data Unit 50VT-A Minimum Airflow for Reliable Electric Heater Operation CFMConnection Wiring Schematics 208/230-1-60 Cont. Ladder Wiring Schematics 208/230-1-60 50VT a Cont. Ladder Wiring Schematics 208/230-3-60 Connection Wiring Diagram Cont. Ladder Wiring Diagram Check for Refrigerant Leaks Start-Up AdjustmentsSTART-UP Checking Cooling and Heating Control OperationTwo Cooling Fan Speeds Set-up Dehumidification feature used Checking and Adjusting Refrigerant ChargeIndoor Airflow and Airflow Adjustments Unit Operation HazardContinuous Fan Operation Single Speed Cooling With Higher Electric Heat SpeedColor Coding for Indoor Fan Motor Leads Quiet Shift Defrost ControlDefrost Dry Coil Air Delivery Downflow Discharge Horizontal and Downflow Filter Pressure Drop Table IN. W.CElectric Heat Pressure Drop Table in. W.C Small Cabinet Electric Heat Pressure Drop Table in. W.C Large CabinetIndoor Blower and Motor MaintenanceAir Filter Personal Injury and Unit Damage HazardCooling Charging Table-Subcooling OF2 Outdoor Fan Electrical Controls and WiringOutdoor Coil, Indoor Coil, and Condensate Drain Pan Refrigerant CircuitHigh-Pressure Switch Pressure SwitchesLoss of Charge Switch Copeland Scroll Compressor Puron RefrigerantSTART-UP Checklist TroubleshootingSystem Information Puronr R-410A Quick Reference Guide Troubleshooting Chart Symptom Cause RemedyPreliminary Information Model no TemperaturesRemove and Store in Job Files III. START-UP Electrical Supply Voltage Compressor AmpsCatalog No 50VT---09SI
Related manuals
Manual 6 pages 26.5 Kb

50VT-A specifications

Carrier’s 50VT-A and 50EZ-A series exemplify cutting-edge advancements in heating, ventilation, and air conditioning (HVAC) technology. These products are engineered to meet diverse climate control needs in residential and commercial applications while ensuring operational efficiency and superior indoor air quality.

The Carrier 50VT-A series stands out with its variable-speed technology, which allows for precise temperature control by adjusting the cooling or heating output based on current demand. This capability not only optimizes energy consumption but also enhances comfort by eliminating temperature swings. The 50VT-A units are equipped with hybrid heat technology, which enables seamless integration with alternative heating sources, providing flexibility in energy use.

On the other hand, the Carrier 50EZ-A offers a unique solution for those seeking efficient and reliable climate control in a more compact design. This series incorporates advanced inverter technology, which continuously adjusts the compressor speed, ensuring that the system operates at the utmost efficiency regardless of environmental conditions. The result is significant energy savings and quieter operation compared to traditional units.

Both series feature intelligent refrigerant management, utilizing R-410A refrigerant, which is environmentally friendly and designed to reduce greenhouse gas emissions. The systems are engineered with robust insulation and sound-dampening materials, minimizing noise levels for a peaceful indoor environment.

In addition to their impressive technical specifications, the Carrier 50VT-A and 50EZ-A units come equipped with smart controls, allowing users to monitor and adjust settings remotely through mobile applications. This connectivity feature empowers homeowners and businesses to manage energy consumption, set schedules, and receive maintenance alerts, ensuring optimal performance at all times.

Durability is an important characteristic of both series, as they are designed to withstand various environmental conditions. With corrosion-resistant coatings and high-grade materials, these units promise longevity and reliable performance over their operational lifespan.

In summary, Carrier’s 50VT-A and 50EZ-A series offer an innovative blend of efficiency, advanced technology, and user-friendly features. Whether for residential or commercial applications, these systems provide exceptional comfort, lower energy costs, and an environmentally conscious choice for modern HVAC solutions.