TABULAR DATA SHEET

Outdoor Split System Air Conditioner 1.5 Thru 5 Tons

MODELS: GCGD18* THRU 60 13 SEER – R-22 – 1 PHASE

Physical and Electrical Data

MODEL

 

GCGD18S

GCGD24S

GCGD30S

 

GCGD36S

 

GCGD42S

GCGD48S

GCGD60S

 

21S2X(E)

21S2X(E)

21S2(E)

 

21S2(E)

 

21S2(E)

21S2(E)

21S2(E)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit Supply Voltage

 

 

 

 

208-230V, 1 60Hz

 

 

 

Normal Voltage Range 1

 

 

 

 

187 to 252

 

 

 

Minimum Circuit Ampacity

8.5

13.2

14.0

 

18.2

 

19.9

22.7

33.5

Max. Overcurrent Device Amps 2

15

20

20

 

30

 

30

35

50

Min. Overcurrent Device Amps 3

15

15

15

 

20

 

25

25

35

Compressor Type

 

Recip

Recip

Recip

 

Recip

 

Recip

Recip

Scroll

 

 

 

 

 

 

 

 

 

 

 

Compressor Amps

Rated Load

6.4

9.9

10.6

 

13.4

 

14.7

17.0

25.6

 

 

 

 

 

 

 

 

 

 

Locked Rotor

36

54

61

 

78

 

78

86

150

 

 

 

 

 

 

 

 

 

 

 

Crankcase Heater

 

No

No

No

 

No

 

No

No

No

 

 

 

 

 

 

 

 

 

 

Factory External Discharge Muffler

No

No

Yes

 

Yes

 

Yes

Yes

No

 

 

 

 

 

 

 

 

 

 

Factory External Check Valve

No

No

No

 

No

 

No

No

No

 

 

 

 

 

 

 

 

 

 

HS Kit Required with TXV 4

Yes

Yes

Yes

 

Yes

 

Yes

Yes

No

Fan Motor Amps

Rated Load

0.5

0.8

0.80

 

1.4

 

1.5

1.5

1.5

 

 

 

 

 

 

 

 

 

 

 

Fan Diameter Inches

 

18

18

18

 

18

 

22

22

22

 

 

 

 

 

 

 

 

 

 

 

 

Rated HP

1/12

1/8

1/8

 

1/4

 

1/4

1/4

1/4

Fan Motor

 

 

 

 

 

 

 

 

 

 

Nominal RPM

1100

1075

1075

 

1100

 

850

850

850

 

 

 

 

 

 

 

 

 

 

 

 

Nominal CFM

1550

1850

1950

 

2400

 

3000

3000

3300

 

 

 

 

 

 

 

 

 

 

 

 

Face Area Sq. Ft.

9.60

9.60

11.30

 

12.10

 

16.50

16.50

19.75

Coil

 

 

 

 

 

 

 

 

 

 

Rows Deep

1

1

1

 

1

 

1

1

1

 

 

 

 

 

 

 

 

 

 

 

 

Fin / Inches

23

23

23

 

23

 

23

23

23

 

 

 

 

 

 

 

 

 

 

 

Liquid Line Set OD

(Field Installed)

3/8

3/8

3/8

 

3/8

 

3/8

3/8

3/8

 

 

 

 

 

 

 

 

 

 

Vapor Line Set OD (Field Installed)

5/8

3/4

3/4

 

3/4

 

7/8

7/8

1-1/8

 

 

 

 

 

 

 

 

 

 

Unit Charge (Lbs. - Oz.) 5

 

 

 

See Note 5 Below

 

 

 

Charge Per Foot, Oz.

0.66

0.68

0.68

0.68

 

0.70

0.70

0.76

Operating Weight Lbs.

130

130

150

160

 

175

176

200

Models with “E” on the end of the model number have an ElectroFin® coating on the outdoor coil.

1.Rated in accordance with AHRI Standard 110-2012, utilization range “A”.

2.Dual element fuses or HACR circuit breaker. Maximum allowable overcurrent protection.

3.Dual element fuses or HACR circuit breaker. Minimum recommended overcurrent protection.

4.See Hard Start Kit Accessory Installation Manual for Hard Start Kit part number for each model.

5.Units have been shipped without refrigerant. Remove nitrogen holding charge, evacuate, and charge to the system charge listed on the second page of the data sheet. System charges listed include 15 feet of lineset.

C

A

B

All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request.

.

Unit

 

Dimensions

 

Refrigerant Connection

 

 

(Inches)

 

Service Valve Size

Model

 

 

 

 

 

 

 

A1

 

B

 

C

Liquid

Vapor

 

 

 

18

28

 

23-1/2

23-1/2

 

 

 

 

 

 

 

 

 

24

28

 

23-1/2

23-1/2

 

3/4”

30

32

 

23-1/2

23-1/2

 

 

 

 

36

34

 

23-1/2

23-1/2

3/8”

 

42

34

 

29

 

29

 

7/8”

48

34

 

29

 

29

 

 

 

 

 

60

40

 

29

 

29

 

7/8”2

1.Overall height from bottom of base pan to top of fan guard.

2.Adapter fitting required for 1-1/8” line set.

Johnson Controls Unitary Products

833101-UTD-B-0612

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Johnson Controls GCGD18 thru 60 dimensions GCGD18S GCGD24S GCGD30S GCGD36S GCGD42S GCGD48S GCGD60S, Unit

GCGD18 thru 60 specifications

Johnson Controls is known for its innovative solutions in building efficiency and energy management, and the GCGD series, with models ranging from 18 to 60, exemplifies this commitment. These rooftop units offer a versatile and reliable option for commercial heating and cooling applications, combining advanced technology with robust performance.

One of the standout features of the GCGD series is its high-efficiency scroll compressors, which provide dependable cooling and heating without sacrificing energy efficiency. These compressors enable the units to achieve high Seasonal Energy Efficiency Ratio (SEER) ratings, catering to the growing demand for lower operational costs and reduced environmental impact.

The GCGD series incorporates multiple stages of heating and cooling, ensuring that these systems can precisely meet the varying demands of commercial spaces. The variable-speed blower motors allow for improved airflow management, ensuring optimal comfort levels while minimizing energy use. In addition to this, the embedded controls offer intuitive operation and monitoring capabilities, empowering facility managers with real-time data and analytics for enhanced decision-making.

Another notable characteristic of the GCGD series is its modular design. This flexibility allows for easy installation and maintenance, ensuring minimal downtime during service. The units can be configured for both ducted and non-ducted applications, making them suitable for a range of commercial settings, from retail spaces to office buildings.

The GCGD series also integrates advanced refrigerant technology. Equipped with the capacity to use environmentally friendly refrigerants, these units align with global standards for sustainability and energy efficiency. The incorporation of direct drive fans further enhances energy savings, reducing mechanical wear and tear while improving quiet operation.

The GCGD series is built with reliability in mind, featuring durable construction materials that withstand the challenges of various climates. With rigorous testing and validation, Johnson Controls has ensured that these units deliver consistent performance over time, making them a trusted choice for facility managers.

In conclusion, the Johnson Controls GCGD series, ranging from 18 to 60, embodies a perfect blend of efficiency, durability, and adaptability, making it an ideal solution for those seeking reliable heating and cooling solutions in commercial environments. With its advanced technologies, intelligent controls, and focus on sustainability, the GCGD series is paving the way for a more efficient future in HVAC systems.