Slant/Fin Caravan LDWO-1100-3-6 Application Manual

WET-BASE CAST-IRON MODULAR BOILERS
Guidelines for the design, purchase and installation of Slant/Fin oil-fired and dual fuel hot water modular boiler systems.
CONTENTS
Introduction .............................................................................1
Boiler room design..................................................................5
Boiler room air supply requirements.......................................5
Venting an oil-fired system ..................................................7,8
Fuel oil storage facilities .........................................................9
Fuel oil delivery systems for single fuel burners ...............9-11
Fuel oil delivery systems for dual fuel burners................11-14
Controls ...........................................................................15,16
CODES AND STANDARDS
Oil-fired Caravan installations must comply to local codes or,
in the absence of local codes, to the ANSI/NFPA 31,
Installation of Oil Burning Equipment, 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. L-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 electrical 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 oil
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.
This Caravan application manual is intended to simplify the
selection and application of Slant/Fin modular systems for a
variety of space heating and domestic hot water requirements.
Where any additional information is required, contract your
local wholesaler, Slant/Fin sales representative, or the
Slant/Fin factory.
A. Design flexibility - Caravan modular boiler systems are
available in virtually any size capacity simply by adding
modules.
B. Boiler room design, size and flexibility - since Caravan
modules have the burner and controls mounted to the
front, they can be installed with minimum clearances as per
® HOT WATER/OIL
APPLICATION GUIDE
Control Wiring Diagrams*:
SCG400, space heating only ......................................17,18
SCG400, space heating and domestic hot water .......19,20
SCG1200, space heating only ....................................21,22
SCG1200, space heating and domestic hot water .....23,24
SCG2000, space heating only ....................................25,26
SCG2000, Space heating and domestic hot water.....27,28
Field Wiring at Modules ........................................................29
Reset Ratio and Temperature Set Points .............................30
*All wiring diagrams are based on continuous circulation.
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. Use of fresh water will void warranty.
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.
INTRODUCTION
codes, thus saving a significant amount of floor space.
C. Faster, easier installation - modules are completely
factory assembled, including individual jackets to save on-
site labor. Optional easy to install supply and return
headers with flexible quick connect fittings are available for
hot water systems.
D. Safety - each module contains an individual high limit
control and a flame safeguard control. ASME relief valve is
provided separately for mounting directly on boiler.
E. Fast domestic hot water recovery - Caravan offers an
external heat exchanger of the positive circulating type.
INTRODUCTION OF FRESH WATER
Publication No. CG-10-HWO
Printed in the U.S.A. 1200
INCLUDING
DUAL FUEL