Table 5 --Electrical Data

UNIT

NOMINAL

VOLTAGE

COMPRESSOR

OFM

 

POWER

COMBUSTION

POWER

VOLTAGE

RANGE

No. 1

No, 2

IFM

EXHAUST

FAN MOTOR

SUPPLY

48TJ

 

 

 

 

 

 

 

 

 

 

 

 

(3Ph,

60Hz)

Min

Max

RLA

LRA

RLA

LRA

Q_

Hp

FLA(ea)

Hp

FLA

FLA

LRA

 

 

208/230

 

187

253

25.6

190

25.6

190

3

0.5

1.7

3.7

10.5/11.0

4.6

18.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

016

 

460

 

414

 

508

13.5

95

13.5

95

3

0.5

0.8

3.7

4.8

 

 

(15 Tons)

 

 

2.3

6.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

575

 

518

632

10.2

75

10.2

75

3

0.5

0.8

3.0

3.9

2.1

4.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208/230

 

187

253

33

237

23

184

3

0.5

1.7

5.0

15.8/15.8

18.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.6

020

 

460

 

414

 

508

16.2

130

10.2

90

3

0.5

0.8

5.0

7.9

 

 

(18 Tons)

 

 

2.3

6.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

575

 

518

632

12.7

85

9

73

3

0.5

0.8

5.0

6.0

2.1

4.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208/230

 

187

253

33

237

29.5

237

2

1

6.6

7.5

25.0/25.0

4.6

18.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O24

 

460

 

414

508

16.2

130

14.1

130

2

1

3.3

7.5

13.0

 

 

(20 Tons)

 

2.3

6.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

575

 

518

632

12.7

85

11.3

85

2

1

3.4

7.5

10.0

2.1

4.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208/230

 

187

253

47.5

265

33

237

2

1

6.6

10.0

28.0/28.0

4.6

18.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

028

 

46O

 

414

508

22.9

145

16.2

130

2

1

3.3

10.0

14.6

 

 

(28 Tons)

 

2.3

6.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

575

 

518

632

17.9

102

12.7

85

2

1

3.4

10.0

13.0

2.1

4.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEGEND

 

 

 

 

 

 

 

 

 

 

Example:

Supply

voltage is 460-3-60.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLA

--

Full Load

Amps

 

 

 

 

 

 

 

 

 

 

 

 

AB = 452

v

HACR

--

Heating,

Air Conditioning and

Refrigeration

 

 

 

 

 

 

 

 

 

 

 

 

A B

C

BC = 464 v

IFM

--

Indoor

(Evaporator)

Fan Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LRA

--

Locked

Rotor Amps

 

 

 

 

 

 

 

 

 

 

 

 

MCA

--

Minimum

Circuit

Amps

 

 

 

 

 

 

 

 

 

 

Average

Voltage

MOCP

--

Maximum

Overcurrent

Protection

 

 

 

 

 

 

(_

 

NEC

--

National

Electrical

Code

 

 

 

 

 

 

 

 

AC = 455

v

 

 

 

 

 

 

 

 

 

 

 

FLAMCA MOCP*

0.5774/74 90/90

0.5779/79 100/100

0.3038 50

0.3040 50

0.5730 35

0.5732 40

0.8788/88 110/110

0.5790/90 110/110

0,3041 80

0.3043 50

0,8733 45

0.5735 45

0.57 109/109 125/125

0.57 114/114 125/125

0.3054 70

0.3056 70

0.5744 80

0.5746 50

0.87 134/134 178/175

0.57 138/138 175/175

0,3066 80

0.3068 90

0.5755 70

0.5757 70

482+ 464 + 488 3

OFM

--

Outdoor (Condenser) Fan Motor

1371

RLA

--

Rated Load Amps

=--

 

 

 

3

*Fuse or HACR circuit breaker.

cCt os

NOTES:

1.In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective

device for the unit shall be fuse or HACR breaker. Canadian units may be fuse or circuit breaker.

2.Unbalanced 3-Phase Supply Voltage

Never operate a motor where, a phase imbalance in supply voltage is o

greater than 2_, Use the following formula to determine the percent of volt- age imbalance,

% Voltage Imbalance

= 457

Determine maximum deviation from average voltage. (AB) 487 - 482 = 8 v

(BC) 464 - 487 = 7 v

(AC) 487 - 488 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance. 7

% Voltage Imbalance = 100 x 487

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

I

2%, contact

your local

electric

utility company

immediately.

I

IMPORTANT:

If the

supply

voltage phase

imbalance is more than

=100 x max voltage deviation from average voltage average voltage

13

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Image 13
Carrier 48TJ016-028 specifications Electrical Data
Page 12 Page 14

48TJ016-028 specifications

The Carrier 48TJ016-028 is a notable model in the range of packaged rooftop units designed by Carrier, a leader in heating, ventilation, and air conditioning (HVAC) solutions. Tailored specifically for commercial applications, these units provide a blend of efficiency, durability, and reliability, making them suitable for a variety of settings, including offices, retail spaces, and industrial environments.

One of the standout features of the 48TJ series is its energy-efficient performance. Equipped with high-efficiency scroll compressors, these units offer superior cooling capacity while minimizing energy consumption. This aligns with modern sustainability goals, helping businesses reduce their carbon footprint and operational costs. Additionally, the 48TJ units comply with stringent industry standards, such as the ASHRAE 90.1 energy efficiency guidelines, ensuring that users receive a product that meets modern energy performance benchmarks.

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Another notable characteristic of the 48TJ series is its flexible installation options. These rooftop units are designed for easy integration into existing building structures and can be installed on flat or pitched roofs. Their compact design and lightweight construction simplify the installation process while minimizing structural impacts on buildings.

Durability is paramount in the design of the 48TJ units as well. The cabinets are constructed from high-quality materials with corrosion-resistant coatings, ensuring a long lifespan even in harsh environmental conditions. The systems are also equipped with robust insulation to reduce sound levels and improve overall operating efficiency.

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In summary, the Carrier 48TJ016-028 units deliver a compelling combination of energy efficiency, advanced technology, and robust construction, making them an ideal choice for commercial HVAC needs. With their versatile features and customizable options, they stand out as reliable solutions for maintaining comfortable indoor environments.
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