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Guidelines for the design, purchase and installation of Slant/Fin Caravan gas-fired, hot water modular boiler systems.
CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Ratings and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .2,3
Recommended Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Optional factory supply and return headers . . . . . . . . . . . . . .5
Boiler room design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Boiler room air supply requirements . . . . . . . . . . . . . . . . . . . .6
Typical layouts for gas-fired systems . . . . . . . . . . . . . . . . . . .7
Venting a gas-fired system . . . . . . . . . . . . . . . . . . . . . . . . . .8,9
Gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10,11
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11,12
CODES AND STANDARDS
All Caravan installations must comply to local codes or, in the
absence of local codes, to the National Fuel Gas Code, ANSI,
Z223.1-latest edition.
In addition where required by the authority having jurisdiction, the
installation must conform to American Society of Mechanical
Engineers Safety Codes for controls and safety devices for
automatically fired boilers, No. CSD-1. The installation must also
conform to the additional requirements of Slant/Fin Instruction Book
publication no. GG-100-40 latest edition.
All electrical wiring is to be done in accordance with the National
Electrical Code ANSI/NFPA No. 70-latest edition and all local electri-
cal codes. The unit must be electrically grounded if an external
power source is used.
In Canada, the installation must be in accordance with standards
CGA B149.1 and B149.2, installation codes for gas burning
appliances and equipment and/or local codes. All electrical
connections are to be made in accordance with Standard C.S.A.
C22.1 Canadian Electrical Code Part 1 and/or local codes.
Many state and local codes require intermittent ignition devices for
gas boilers. Please specify if necessary.
LOCAL CODE APPROVALS
New York City:
GGT and GGHT Caravan Modules - MEA 283-93-E Vol. II
Slant/Fin vent damper NYS approval No. 8859
Pennsylvania:
Caravan boilers are approved in Pennsylvania by PA Cert. 174-BT-S
®
HOT WATER/GAS
APPLICATION GUIDE
SC- control bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . .12
Field wiring at modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
SC-3 system wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
SC-3 ladder wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
SC-9 space heating wiring . . . . . . . . . . . . . . . . . . . . . . . . . .16
SC-9 space heating ladder wiring . . . . . . . . . . . . . . . . . . . . .17
SC-9 space and domestic hot water wiring . . . . . . . . . . . . .18
SC-9 space and domestic hot water ladder wiring . . . . . . . .19
Caravan warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21,22
Request for Caravan rating plate . . . . . . . . . . . . . . . . . . .23,24
INTRODUCTION OF FRESH WATER
Introduction of excessive amounts of fresh water into a system can
cause scaling and leave deposits in the boiler and the surrounding
pipes. This will lead to inefficient boiler operation and breakdown.
Fresh water will enter the system as a result of hidden leaks such
as may occur in underground piping. Relief valves should be piped
to a location that shows visible signs of relief.
Process applications that use fresh water, require the use of heat
exchangers. Any process application that results in introduction of
fresh water into a boiler can cause scaling with deposits forming in
the boiler and surrounding piping. This will damage the boiler.
Introduction of fresh water from leaks will cause similar damage.
In some areas it may be necessary to use a feed water treatment to
control the corrosive makeup of the feed water. Check with the local
authority, to determine if the feed water will need a conditioning
treatment before being supplied to the boiler.
Modular Boilers
Publication No. CG-10-HWG
Printed in the U.S.A. 1212
www.slantfin.com
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Table of Contents
Related Manuals for Slant/Fin CARAVAN GGT-600E
Summary of Contents for Slant/Fin CARAVAN GGT-600E
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Page 1: Table Of Contents
APPLICATION GUIDE Guidelines for the design, purchase and installation of Slant/Fin Caravan gas-fired, hot water modular boiler systems. SC- control bill of materials ......12 CONTENTS Field wiring at modules . -
Page 2: Introduction
* Specify gas by name, "Natural" or "Propane". ‡ Net ratings in square feet based on emission rate of 150 Btuh/sq. ft. † Net ratings are based on piping and pick-up allowance of 1.15. Slant/Fin should § Refer to figures 1 and 8. Headers shown are optional. - Page 3 Figure 1: Gas Caravan dimensions and typical piping/hot water models Design Data Max. ASME Working Pressure: 100 psi Power Requirements: 120 volts, 60 HZ, .34 amps per module...
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Page 4: Recommended Piping
RECOMMENDED PIPING Figure 2. Recommended boiler piping for variable circulation Figure 3. Supply and return piping locations Figure 4. Instantaneous tankless coil— Figure 5. Storage tank from tankless coil with recirculation two temperature with recirculation... -
Page 5: Optional Factory Supply And Return Headers
• Module pressure and temperature gauge (unmounted). EQUIPMENT INCLUDED • Module pressure relief valve (ASME) (unmounted). Specify GGT SERIES — Hot Water Models 30, 50 or 100 psi. One per module unless otherwise noted • Control header (unmounted, one per system). •... -
Page 6: Boiler Room Design
BOILER ROOM DESIGN BOILER ROOM AIR SUPPLY Caravan modular boiler systems allow better utilization of floor To ensure safe, efficient operation, the modular boiler system must space and permit future expansion with minimum cost. Caravan be supplied with sufficient air to support complete combustion, modules are hand truckable, fit through doorways and often may replacing air entering draft dampers or draft hoods and ventilating be installed around an existing inoperative boiler. -
Page 7: Typical Layouts For Gas-Fired Systems
Figure 8. Typical layouts for gas-fired systems... -
Page 8: Venting A Gas-Fired System
Run breeching as high as clearance permits to obtain maximum VENTING A GAS-FIRED SYSTEM vertical rise of individual boiler vents. Note that this does not alter A boiler venting system provides an escape path for the products of chimney height (the height from hood skirt to chimney top). The combustion. - Page 9 Connector Rise: Connector rise is the length of the pipe connecting the top of the draft hood to the system breeching above. The diameter of this pipe varies depending upon BTU input, chimney height and the length of the connector. Fig.9 (Dim. “B”) shows the location of this pipe in a typical application.
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Page 10: Gas Piping
GAS PIPING This section contains sizing and construction recommendations Individual gas lines to individual boiler modules should be ⁄ " for fuel supply piping to Caravan gas-fired modular boiler diameter. Size of gas main and header pipes depends on volume systems. -
Page 11: Controls
In a staging control system, each stage ordinarily activates one boiler module. With appropriate wiring, multiple modules can be Slant/Fin offers two controls to step fire a hot water Caravan sys- grouped within a stage. tem. The SC-3 and SC-9 controls fulfill a wide range of applica- tions. -
Page 12: Sc- Control Bill Of Materials
Slant/Fin offers domestic hot water control packages and combustion air damper to open; ability to provide equal run time external tankless heaters as options for use with the SC-9 rotation of boiler modules;... -
Page 13: Field Wiring At Modules
FIELD WIRING AT MODULES... -
Page 14: System Wiring
SC-3 SYSTEM WIRING DIAGRAM... -
Page 15: Ladder Wiring
SC-3 LADDER WIRING DIAGRAM... -
Page 16: Space Heating Wiring
SC-9 SPACE HEATING WIRING DIAGRAM... -
Page 17: Space Heating Ladder Wiring
SC-9 SPACE HEATING LADDER WIRING DIAGRAM... -
Page 18: Space And Domestic Hot Water Wiring
SC-9 SPACE AND DOMESTIC HOT WATER WIRING DIAGRAM... -
Page 19: Space And Domestic Hot Water Ladder Wiring
SC-9 SPACE AND DOMESTIC HOT WATER LADDER WIRING DIAGRAM... -
Page 20: Caravan Warranty
If any sections are found to be defective during this peri- Oil Models: Intrepid, Liberty, Liberty II, XL-2000, EC Series od, Slant/Fin will repair or replace the section or, at its option, the entire heat exchanger. Electric Models: Monitron See “Additional Warranty Terms”... -
Page 21: Notes
Boilers operated with water additives or water/system conditions that may cause heat exchanger failure. Slant/Fin's sole obligation in the event of a breach of any implied warranty (including, but not limited to, implied warranties of mer- Boilers that have failed or malfunctioned due to improper or neg-... -
Page 23: Request For Caravan Rating Plate
CARAVAN SYSTEM RATING PLATE System rating plate format for Caravan modular boiler system. System rating plates are available upon request using the form on the back cover. - Page 24 A modular boiler system is a Service single boiler. To meet local requirements, a system rating PHONE 516-484-2600 plate will be issued by Slant/Fin upon request. Just provide the information indicated on this page. Requested by: Phone: Required...