® Modular Boiler Submittal Data

GGT SERIES—Gas-Fired/Hot Water

A Caravan modular boiler system consists of two or more compact cast-iron boilers that offer significant advantages in terms of installed cost, efficiency and reliability. Caravan systems are based on step-firing just enough modules to meet heating demands. GGT systems are available in 400,000 to multi-million Btuh gross input. For additional information, see Caravan Engineering Manual, pub. C-30 and Caravan gas application guide, pub. CG-10-HWG.

Standard Equipment

One per module unless otherwise noted: Pre-assembledcast-iron heat exchanger with built-in air separators and insulated jacket.

Base.

Flue collector.

Gas burners, gas orifices and manifold assembly. Combination gas valve including manual shut-off

and pressure regulator.

Pilot adjustment and automatic pilot thermocouple safety.

Hi-limit control.

Module pressure and tempera- ture gauge (unmounted).

Module pressure relief valve (ASME) (unmounted). Specify 30, 50 or 100 psi.

Control header (unmounted, one per system).

Draft hood (unmounted). Spark ignition system.

Optional Equipment

Hot water supply and return header assemblies.

Control panel with automatic lead/lag. Standing pilot available on:

GG-200EC, GG-250EC, GG-300EC Vent dampers.

External DHW heat exchanger.

Ratings

Gas Caravan ratings and dimensions/hot water models — GGT Series

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Consists of

 

I=B=R Ratings

 

 

 

 

 

 

 

 

 

 

I=B-R

 

 

 

 

 

 

 

 

 

 

 

 

(MBH)

 

 

 

 

 

 

 

No. of

 

 

Module

 

 

EDR

Net

Boiler

Water

A.G.A.

Ship

 

 

Htg.

 

 

Model

 

 

 

Gross

Water‡

Output†

Horse-

Content

Combust.

Model No. *

Mod.§

 

 

Number

 

 

Input

Output§

(Sq. Ft.)

(MBH)

power

(gal.)

Efficiency

Wt.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GGT-400

2

 

GG-200EC

 

400

332

1866

280

9.9

14.2

82.0

820

GGT-500

2

 

GG-250EC

 

500

402

2333

350

12.0

16.4

80.4

950

GGT-600

2

 

GG-300EC

 

600

480

2780

417

14.3

18.4

80.0

1080

GGHT-700

2

 

GG-350HEC

 

700

581

3368

505

17.3

20.6

83.0

1230

GGHT-750

2

 

GG-375HEC

 

750

608

3520

528

18.1

20.6

81.0

1230

GGHT-800

2

 

GG-399HEC

 

798

654

3786

568

19.5

20.6

82.0

1230

GGT-900

3

 

GG-300C

 

900

720

4173

626

21.5

27.6

80.0

1590

GGHT-1050

3

 

GG-350HEC

 

1050

872

5052

758

26.0

30.9

83.0

1830

GGHT-1125

3

 

GG-375HEC

 

1125

912

5286

793

27.2

30.9

81.0

1830

GGHT-1200

3

 

GG-399HEC

 

1197

981

5686

853

29.3

30.9

82.0

1830

GGT-1200

4

 

GG-300C

 

1200

960

5560

834

28.7

36.8

80.0

2140

GGHT-1400

4

 

GG350HEC

 

1400

1162

6736

1010

34.7

41.2

83.0

2440

GGHT-1500

4

 

GG-375HEC

 

1500

1216

7046

1057

36.3

41.2

81.0

2440

GGT-1500

5

 

GG-300EC

 

1500

1200

6950

1043

35.9

46.0

80.0

2675

GGHT-1600

4

 

GG-399HEC

 

1596

1308

7580

1137

39.0

41.2

82.0

2440

GGHT-1750

5

 

GG-350HEC

 

1750

1453

8420

1263

43.4

51.5

83.0

3050

GGHT-1875

5

 

GG-375HEC

 

1875

1520

8806

1321

45.4

51.5

81.0

3050

GGHT-2000

5

 

GG-399HEC

 

1995

1635

9473

1421

48.8

51.5

82.0

3050

GGHT-2100

6

 

GG-350HEC

 

2100

1743

10104

1516

52.0

61.8

83.0

3660

GGHT-2250

6

 

GG-375HEC

 

2250

1824

10573

1586

54.4

61.8

81.0

3660

GGHT-2400

6

 

GG-399HEC

 

2394

1962

11373

1706

58.6

61.8

82.0

3660

GGHT-2450

7

 

GG-350HEC

 

2450

2034

11788

1768

60.7

72.1

83.0

4270

GGHT-2625

7

 

GG-375HEC

 

2625

2128

12333

1850

63.5

72.1

81.0

4270

GGHT-2800

7

 

GG-399HEC

 

2793

2289

13266

1990

68.3

72.1

82.0

4270

GGHT-2800

8

 

GG-350HEC

 

2800

2324

13472

2021

69.4

82.4

83.0

4880

GGHT-3000

8

 

GG-375HEC

 

3000

2432

14093

2114

72.6

82.4

81.0

4880

GGHT-3150

9

 

GG-350HEC

 

3150

2615

15157

2273

78.1

92.7

83.0

5490

GGHT-3200

8

 

GG-399HEC

 

3192

2616

15160

2274

78.1

82.4

82.0

4880

GGHT-3375

9

 

GG-375HEC

 

3375

2736

15860

2379

81.7

92.7

81.0

5490

GGHT-3500

10

 

GG-350HEC

 

3500

2905

16841

2526

86.8

103.0

83.0

6100

GGHT-3600

10

 

GG-399HEC

 

3591

2943

17060

2559

87.9

92.7

82.0

5490

GGHT-3750

10

 

GG-375HEC

 

3750

3040

17620

2643

90.8

103.0

81.0

6100

GGHT-4000

10

 

GG-399HEC

 

3990

3270

18953

2843

97.6

103.0

82.0

6100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Specify gas by name, "Natural" or "Propane".

Net ratings are based on piping and pick-up allowance of 1.15. Slant/Fin should be consulted before selecting a boiler for installation having unusual piping and/or pick-up requirements.

Ratings must be reduced by 4% at 2,000 ft. elevation and an additional

4% for every additional 1,000 ft. elevation over 2,000 ft.

‡ Net ratings in square feet based on emission rate of 150 Btuh/sq. ft.

§ I=B=R gross output.

Modules in excess of 10 should be piped in parallel in two or more batteries. For dimension specifications, refer to Publication number CG-10-HWG.

Note: Specify pressure relief setting. Relief valve is available with 30, 50 or 100 psi.

FOR LARGER SIZES, USE MULTIPLES OF THE ABOVE.

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Slant/Fin GGT Series dimensions Standard Equipment, Optional Equipment, Ratings

GGT Series specifications

The Slant/Fin GGT Series is a groundbreaking line of high-efficiency condensing gas boilers designed to meet the growing demands for reliability, performance, and energy efficiency in heating systems. One of the standout features of the GGT Series is its advanced condensing technology, which allows for optimal heat extraction from combustion gases. This design significantly enhances efficiency, translating to lower energy bills for homeowners and reduced environmental impact.

A hallmark of the GGT Series is its impressive AFUE (annual fuel utilization efficiency) rating of up to 95%, allowing users to maximize their fuel use while minimizing waste. This efficiency is achieved through a unique design that captures and utilizes heat that would otherwise be lost in traditional boiler systems. The two-stage burner not only provides precise control over heating output but also ensures quieter operation and lower emissions.

The GGT Series is constructed with durable stainless steel heat exchangers, which offer superior resistance to corrosion, leading to a longer lifespan and reduced maintenance needs. The units come equipped with an integrated control system that simplifies user interaction. This advanced control technology allows for easy programming and monitoring, enabling homeowners to manage their heating systems effortlessly. The intuitive interface ensures that users can adjust their heating needs based on personal preferences and comfort levels.

Safety is a top priority for the GGT Series; hence, these boilers are equipped with various safety features, including a high-limit control and flame monitoring system. The units also offer a venting flexibility with options for direct venting or through the roof, making installation adaptable to various home designs and building codes.

Another key characteristic of the GGT Series is its compact design, which allows for easy installation in tight spaces. With models available for both residential and light commercial applications, the GGT Series accommodates a wide range of heating needs, ensuring effective warmth for almost any setting.

In summary, the Slant/Fin GGT Series offers cutting-edge technology, robust construction, and exceptional efficiency, making it an ideal choice for homeowners and businesses looking for a high-performance heating solution. With its combination of advanced features and user-friendly controls, the GGT Series is a sensible and sustainable choice in today’s heating market.