Slant/Fin Jaguar User Manual

HOT WATER/GAS
MULTIPLE AND
CASCADING BOILERS

®

APPLICATION GUIDE

Guidelines for the design, purchase and installation of Slant/Fin Jaguar J-390C Caravan gas-fired, hot water multiple boiler systems.

CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Ratings and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . .2

Boiler room design & layout . . . . . . . . . . . . . . . . . . . . . .4

Fresh air and contamination prevention . . . . . . . . . . . . .6

Piping and Wiring Flow

Boiler room air supply & ventilation . . . . . . . . . . . . . . . . .6

Venting requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Water piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Condensate removal . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Gas line sizing and layout . . . . . . . . . . . . . . . . . . . . . . .16

Jaguar Multiple Boiler System Control . . . . . . . . . . . . .18

Cascading – Jaguar link method and wiring . . . . . . . . .19

Reset curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

External signal & energy management (Tekmar 275) . . . . . . .28

Hybrid Boiler System . . . . . . . . . . . . . . . . . . . . . . . . . . .34

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. J-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 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.

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.

Printed in the U.S.A. 711 Publication No. CJ-10-HWG

www.slantfin.com

Jaguar Caravan Multiple and Cascading Boilers2

1. INTRODUCTION

If additional information is desired please contact your local
Slant/Fin Sales Representative or Slant/Fin Technical Services.
Slant/Fin may be found on the web at www.slantfin.com

This application manual is intended to provide the piping and control
method for applying multiple Jaguar J-390C boilers to a space heat­ing and domestic hot water heating system. Use this manual, in
conjunction with the Jaguar J-390C Installation and Operating
Instructions, publication J-40.

The following sections of the Installation and Operating Instructions
(J-390C) must be adhered to:

1. Boiler location and foundation

2. Clearances to combustibles

3. Contamination prevention

4. Air supply and ventilation

5. Venting application and materials*

6. Water treatment

7. Condensate disposal

8. Operating instructions

9. Care and Maintenance

2. RATINGS AND DIMENSIONS

*Common venting of these appliances is not permitted. Direct vent
terminals cannot be clustered together or stacked vertically. Direct
vent terminals can be mounted side by side horizontally, provided
there is a 12" minimum distance between them.

There are two methods available to control J-390C Caravan boilers:

1. Jaguar link method to operate up to 8 boilers. An optional system
sensor is required for operation of this method. Supply water
system sensor (Part no. 833433000) max be ordered to
Slant/Fin boiler distributor.

2. External signal (0-10 Vdc input). Control such as Tekmar control
265 or 275 (operates up to 4 boilers). Energy Management
System may be used with this method. One optional interface
control is required for operation of each boiler in the system.
Part number for interface control kit is 830130000.

Jaguar boilers may also be used in a heating system with a
Caravan cast iron modular boiler system. Since high efficiency con­densing boilers only condense when the return water temperature is
low, around 130 F or lower, it makes sense to use a lower cost
Caravan cast iron boiler at higher water temperature. We call a com­bination Caravan Cast Iron Modular Boiler used in a system with a
Jaguar Multiple Boiler a “Hybrid Boiler System”. We address Hybrid
Boiler Systems within this manual.

Table 1: Gas multiple boiler ratings and dimension/hot water model 50 psi maximum working pressure

Model

No.

J-390C 2B
J-390C 3B
J-390C 4B
J-390C 5B
J-390C 6B
J-390C 7B
J-390C 8B

Model

No.

J-390C 2B
J-390C 3B
J-390C 4B
J-390C 5B
J-390C 6B
J-390C 7B
J-390C 8B

Consists of

No. of Htg.

Boiler

2
3
4
5
6
7
8

Water

Content

(gal.)

4
6

8
10
12
14
16

Boiler

Model No.

J-390C
J-390C
J-390C
J-390C
J-390C
J-390C
J-390C

Ship

Wt.

Lbs.

600

900
1200
1500
2340
2730
3120

CSA Input

(MBH)

Max Min Max Min Max Min Max Min

780
1170
1560
1950
2340
2730
3120

Vent

Conn

4"
4"
4"
4"
4"
4"
4"

Air

Intake.

4"
4"
4"
4"
4"
4"
4"

110
110
110
110
110
110
110

Water

Correction

at Boiler

1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4

CSA output

704
1056
1408
1760
2112
2464
2816

Space
Btwn.

Boilers

3-1/4
3-1/4
3-1/4
3-1/4
3-1/4
3-1/4
3-1/4

(MBH)

106
106
106
106
106
106
106

**

Length

with

Header

50-1/2"

77-3/4"
104-1/4"
131-1/8"

158"
184-7/8"
211-3/4"

I=B=R Net

612

918
1224
1530
1836
2142
2448

**

Min.

Header

Size

2"
2"
3"
3"
3"
3"
3"

(MBH)

92
92
92
92
92
92
92

Combustion

Efficiency

91.6

91.6

91.6

91.6

91.6

91.6

91.6

System Turndown

Model

No.

J-390C 2B
J-390C 3B
J-390C 4B
J-390C 5B
J-390C 6B
J-390C 7B
J-390C 8B

96.7

96.7

96.7

96.7

96.7

96.7

96.7

Turndown

Ratio

7 to 1

10.6 to 1

14.2 to 1

17.7 to 1

21.3 to 1

24.8 to 1

28.4 to 1

Boiler
Horse­Power

21

31.5
42

52.6

63.1

73.6

84.1

** “Length with headers allows for 3 1/4" between boiler.

Jaguar Caravan Multiple and Cascading Boilers 3

‘’

‘’

‘’‘’ ‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

‘’

** “L” Dimensions and spacing between boilers are for Slant/Fin headers.

†

Based on 150 BTUH per square foot E.D.R. at 170˚F water temperature.

No. of Boilers Model No. “L” inches

Figure 1. Dimensions

1
2
3
4
5
6
7
8

J-390C 1B
J-390C 2B
J-390C 3B
J-390C 4B
J-390C 5B
J-390C 6B
J-390C 7B
J-390C 8B

104-1/4
131-1/8

184-7/8
211-3/4

23-5/8
50-1/2
77-3/8

158

BOILER DESIGN DATA

– Max. ASME Working Pressure: 50 PSI
– Power Requirements

120 Volts, 60 Hz, 1 Phase

– 1.6 Amps per module, not including

primary circulator

Jaguar Caravan Multiple and Cascading Boilers4

3. BOILER ROOM DESIGN AND LAYOUT

Jaguar Caravan Multiple Boilers allow better utilization of floor space
and permit future boiler system expansion with minimum cost.
Jaguar boilers are hand truckable, fit through doorways and can
often be installed around existing boilers. Boilers can be installed in
line, back to back, at angles or in multiple rows. Layout is flexible.
Figure 2 gives a typical layout using Slant/Fin Headers.

Boiler rooms and enclosures should comply with local code require­ments. Provide a level and solid foundation for the boilers.
Equipment pads should be capable of supporting the boilers filled
with water and extend past the boiler jackets by at least 2 inches.
Jaguar boilers are approved for installation on combustible and non­combustible floors, however Jaguar boilers must not be installed on
or above carpeting. All boiler components should be protected from
water during installation, set up, operation and service.

Minimum clearances to combustible materials should comply with
local code requirements. Slant/Fin minimum clearances are listed

below.

MINIMUM CLEARANCES FROM COMBUSTIBLE
CONSTRUCTIONS

A. Minimum clearances to the exterior surfaces of the boiler shall

be as follows:
MINIMUM ALCOVE AND CLOSET CLEARANCE

For Combustible Recommended

Surface

Construction for Service
Front 0" 24"
Rear 0" 8"
Left Side 0" 0"
Right Side 0" 0"
Top 4" 6"
Flue Connector:

Enclosed — 2" 6"
Uninclosed — 1" 6"

B. Provide accessibility clearance of 8" on sides requiring servic-

ing and 18" on sides used for passage.

C. All minimum clearances shown above must be met. This may

result in increased values of some minimum clearances in
order to maintain the minimum clearances of others.

D. Clearance from hot water pipes shall be 1 inch**.

** At points where hot water pipes emerge from a floor, wall or ceiling, the clear-

ance at the opening through the finished floor boards or wall or ceiling boards
may be not less than 1/2 inch. Each such opening shall be covered with a
plate of uncombustible material.

SAFETY

KEEP THE BOILER AREA CLEAR AND FREE FROM
COMBUSTIBLE MATERIALS, GASOLINE AND OTHER
FLAMMABLE VAPORS AND LIQUIDS.

Jaguar Caravan Multiple and Cascading Boilers 5

Figure 2. Typical layout of 3 Jaguar Boilers using Slant/Fin Headers (Minimum Clearance)

Jaguar Caravan Multiple and Cascading Boilers6

4. FRESH AIR AND CONTAMINATION PREVENTION

The combustion air supply must not be susceptible to contamina­tion sources, whether the combustion air comes from the interior
or exterior of the building. Contaminated air can cause corrosion
or other damage to the heat exchanger and components of the
boiler, causing failure of these parts or unsafe operation.

Below is a list of products and areas which may cause
contaminated combustion air:

PRODUCTS TO AVOID

• Spray cans containing chloro/fluorocarbons

• Permanent wave solutions

• Chlorinated waxes/cleaners

• Chlorine-based swimming pool chemicals

• Calcium chloride used for thawing

• Sodium chloride used for water softening

• Refrigerant leaks

• Paint or varnish removers

• Hydrochloric acid/muriatic acid

• Cements and glues

• Antistatic fabric softeners used in clothes dryers

• Chlorine-type bleaches, detergents, and cleaning
solvents found in household laundry rooms

• Adhesives used to fasten building products and other
similar products

AREAS LIKELY TO HAVE CONTAMINANTS

• Dry cleaning/laundry areas and establishments

• Swimming pools

• Metal fabrication plants

• Beauty shops

• Refrigeration repair shops

• Photo processing plants

• Auto body shops

• Plastic manufacturing plants

• Furniture refinishing areas and establishments

• New building construction

• Remodeling areas

• Garages with workshops

5. BOILER ROOM AIR SUPPLY AND VENTILATION

An ample supply of air is required for combustion and ventilation.
When buildings are insulated, caulked and weather-stripped, now
or later on, direct openings to outside may be required and should
be provided. If the boiler is not near an outside wall, air may be
ducted to it from outside wall openings.

Provisions for combustion and ventilation air must be made in
accordance with section 5.3, Air for Combustion and Ventilation, of
the National Fuel Gas Code, ANSI Z223.1-latest edition, or appli­cable provisions of the local building codes. The following recom­mendation applies to buildings of energy-saving construction, fully
caulked and weatherstripped.

INSTALLATION IN ENCLOSED BOILER ROOM REQUIRES
TWO UNOBSTRUCTED OPENINGS FOR PASSAGE OF AIR
INTO THE BOILER ROOM.

A. NON-DIRECT VENT INSTALLATION

1. Air drawn horizontally from outdoors DIRECTLY through
an outside wall; one louvered opening near the floor and one

louvered opening near the ceiling, each opening with a mini­mum FREE air passage area of 1 square inch per 4000
Btuh of total appliances’ input.

2. Air drawn horizontally through HORIZONTAL DUCTS; one
opening near the floor and one opening near the ceiling, each
opening with a minimum FREE air passage area of 1 square
inch per 2000 Btuh of total appliances’ input.

3. Air drawn VERTICALLY from outdoors; one opening at the
floor and one opening at the ceiling, each opening with a mini­mum FREE air passage area of 1 square inch per 4000
Btuh of total appliances’ input.

4. Air drawn from inside the building; one opening near the
floor and one opening near the ceiling, each opening with a
minimum FREE air passage area of 1 square inch per 1000
Btuh of total appliances’ input.

IF BOILERS ARE INSTALLED ADJACENT TO OTHER FUEL
BURNING EQUIPMENT, THE AREA OF FREE OPENINGS
MUST BE APPROPRIATELY INCREASED TO ACCOMMODATE
THE ADDITIONAL LOAD.

B. DIRECT VENT INSTALLATION

Adequate air supply should be provided to prevent overheating of
the boiler controls and boiler room. Openings for passage of air
into the boiler room for direct-vent installation must be at least

1

⁄2 of
the openings required for the non-direct vent as
mentioned above.

If additional non-direct vent appliances are installed in the same
space and adequate air openings are provided for them, there are
no additional air openings required for the Jaguar
J-390C boiler.

For both direct and non-direct installation, the following must be
considered:

-

Openings must never be reduced or closed. If doors or windows
are used for air supply, they must be locked open.

- Protect against closure of openings by snow and debris.

Inspect frequently.

- No mechanical draft exhaust or supply fans are to be used in

or near the boiler area.

- Boiler area must never be under negative pressure. The flow of

combustion and ventilating air to the boiler must not be
obstructed.

Jaguar Caravan Multiple and Cascading Boilers 7

6. VENTING REQUIREMENTS

The Jaguar J-390C is a sealed combustion type boiler, it may be
installed and vented either as a direct vent boiler which all air for
combustion is obtained directly from outside or as a non-direct
vent boiler which air for combustion is taken from inside the boiler
room.

The Jaguar J-390C boiler must be vented by 4" diameter
PVC/CPVC schedule 40 pipe, or the proper 4” diameter stainless
steel venting system (see “vent material” on this page) through the
roof or sidewall.

FLUE GAS VENTING REQUIREMENTS

The Jaguar J-390C series boiler is a high efficiency, mechanically
forced draft boiler and, therefore, require different venting arrange­ments than natural draft, lower efficiency boilers.

THE FOLLOWING INSTRUCTIONS MUST BE CAREFULLY
READ AND FOLLOWED IN ORDER TO AVOID ANY HAZ­ARDOUS CONDITIONS DUE TO IMPROPER INSTALLATION
OF THE AIR INTAKE AND FLUE GAS VENTING SYSTEM.

The vent piping installation MUST be in accordance with these
instructions and with ANSI Z223.1-latest edition NATIONAL FUEL
GAS CODE, Part 7, Venting of Equipment. Other local codes may
also apply and must be followed. Where there is a conflict
between these requirements, the more stringent case shall apply.

The use of a vent damper is NOT permitted on this boiler series.

ADDITIONAL REQUIREMENTS FOR THE COMMONWEALTH
OF MASSACHUSETTS

When the Jaguar is installed and used in the Commonwealth of
Massachusetts, the following additional
Massachusetts code 248 CMR MUST be met:

(1). Exisiting chimneys shall be permitted to have their use continued when a
gas conversion burner is installed, and shall be equipped with a manual reset
device that will automatically shut off gas to the burner in the event of a sus­tained back-draft.

(2)(a). For all side wall horizontally vented gas fueld equipment installed in
every dwelling, building or structure used in whole or part for residential pur­poses, including those owned or operated by the Commonwealth and where
the side wall exhaust vent termination is less than seven (7) feet above finsi­hed grade in the area of the venting, including but not limited to decks and
porches, the following requirements shall be satisfied:

1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of
installation of the side wall horizontal vented fueled equipment, the installing
plumber or gasfitter shall observe that a hard wired carbon monoxide detector
with an alarm and battery back-up is installed on the floor level where the gas
equipment is to be installed. In addition, the installing plumber or gasfitter
shall observe that a battery operated or hard wired carbon monoxide detector
with an alarm is installed on each additional level of the dwelling, building or
structure served by the side wall horizontal vented gas fueled equipment. It
shall be the responsibility of the property owner to secure the services of qual­ified licensed professionals for the installation of hard wired carbon monoxide
detectors.

a. In the event that the side wall horizontally vented gas fueld equipment is
installed in a crawl space or an attic, the hard wired carbon monoxide detector
with alarm and battery back up may be installed on the next adjacent floor
level.

b. In th event that the requirements of this subdivision can not be met at the
time of completion of installation, the owner shall have a period of thirty (30)
days to comply with the above requirements; provided, however, that during
said thirty (30) day period, a battery operated carbon monoxide detector with
an alarm shall be installed.

requirements pursuant to

2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monox­ide detector as required in accordance with the above provisions shall comply
with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

3. SIGNAGE. A metal or plastic identification plate shall be permanently
mounted to the exterior of the building at a minimum height of eight (8) feet
above grade directly in line with the exhaust vent terminal for the horizontally
vented gas fueled heating appliance or equipment. The sign shall read, in
print size no less that one-half (1/2) inch in size, “GAS VENT DIRECTLY

BELOW, KEEP CLEAR OF ALL OBSTRUCTIONS”.

4. INSPECTION. The state or local gas inspector of the side wall horizontally
vented gas fueled equipment shall not approve the installation unless, upon
inspection, the inspector observes carbon monoxide detectors and signage
installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.

(b) EXEMPTIONS. The following equipment is exempt from 248 CMR

5.08(2)(a)1 through 4:

1. The equipment listed in Chapter 10 entitled “Equipment Not Required
TO Be Vented” in the most current edition of NFPA 54 as adopted by the
Board; and

2. Product Approved side wall horizontally vented gas fueled equipment
installed in a room or structure separate from the dwelling, building or
structure used in whole or part for residential purposes.

VENT AND AIR INTAKE MATERIALS

The vent and air intake system for direct or non-direct vent instal­lation must be 4” diameter PVC/CPVC schedule. 40 pipe, or UL
listed single wall 4” diameter AL29-4C* stainless steel material.
The following manufacturers’ systems are approved for use within
a specified minimum and maximum equivalent vent length in this
manual.

Manufacturer Type/System Sealant

Heat-Fab. Inc.

ProTech System,

Inc.

Flex-L International

Inc.

Metal-Fab, Inc. Corr Guard Not Required

N/A

N/A

Saf-T Vent

EZ Seal

FasNSeal Not Required

StaR-34 GE-IS806

PVC pipe,

Schedule 40

CPVC pipe,

Schedule 40

Not Required

PVC primer
and cement

CPVC primer

and cement

When joining the various components of the listed stainless steel vent
systems, the manufacturers’ instructions should be closely followed to
insure proper sealing. Use sealant specified by vent system manufac­turer for sealing of pipe and fittings, if required. When joining the
PVC/CPVC pipe and fittings, follow the instructions provided in this
manual. All connections must be liquid and pressure tight. DO NOT
use galvanized flue pipe or any plastic-type materials other than
PVC/CPVC Schedule 40.

* Maximum exhaust vent length = 100 feet
* Maximum air intake length = 100 feet
* Each elbow is eqivalent to 10 feet of straight pipe

Jaguar Caravan Multiple and Cascading Boilers8

VENT AND AIR INTAKE RESTRICTIONS

1. Maximum allowed equivalent vent and air intake length for all of
the approved vent and air intake materials is 100 equivalent feet.

2. Equivalent of vent or air intake length is sum of the straight pipe
lengths and equivalent length of elbows. Each 90˚ elbow is equivalent
to 10 ft. of 4" pipe.

Figure 3.

3. The vent termination is in addition to the allowed equivalent lengths.

4. Minimum vent length is 2 feet of straight pipe, plus one 90˚ elbow.

5. Vent length restriction is for both direct and non-direct vent installations.

EXAMPLE: The combustion air is provided by air intake piping directly
to the boiler (direct-vent installation). The vent piping will be PVC and
installation location will require the use of 4 elbows for the vent to run
the termination. The air intake piping will also be PVC, and also will
require the use of 4 elbows.
In this case, the maximum straight pipe vent length that can be utilized
with the 4 elbows would be: 100’ - (4’ x 10’) = 60’. Since the air intake
pipe also is PVC and requires the use of 4 elbows, the maximum
straight pipe air intake length that can be utilized is also 60 feet.

If the air for combustion were taken from the boiler room (non-direct vent
installation), still the maximum straight vent length would be 60 feet.

6. The Jaguar J-390C boiler is equipped with a built-in condensation
drain and trap system. The traps must be filled with water. DO NOT
operate the boiler without filling the trap with water to prevent flue gas
discharge into space. The drain must dispose of possibly large
quantities of condensate, which may require a neutralizing system.
Refer to the “Condensate Drainage” section of this manual. No
additional condensation drain and trap is required on the vent piping
system itself.

7. The horizontal vent pipe must be sloped upward from the boiler at a
pitch of at least 1/4” per 1 foot of run, so that the condensate from the
vent system runs to the boiler vent adapter pipe, then out the built-in
condensation drain and trap.

8. The horizontal vent and air intake pipes must be supported with pipe

straps, at intervals no greater than 5 feet, when PVC/CPVC pipe is
utilized. This support spacing applies also to stainless steel vent pipe,
unless the manufacturer’s instructions permit otherwise. The vertical
vent and air intake pipes also must be supported, wherever the
building construction provides allowance for it, such as ceiling or
roof passage openings where a firestop and support or
braces can be affixed.

9. Minimum clearances of vent pipes from combustible constructions

must be maintained (Pub J-40). No clearance is required between the
vent and air intake pipes of this boiler.

10. Common venting with other appliances or another Jaguar boiler is

not allowed.

11. DO NOT install a vent damper or similar devices in vent system or on

the boiler.

12. DO NOT insulate venting system.

VENTING INSTALLATION

Only PVC/CPVC and approved stainless steel materials listed on page 7
may be used for the venting system installation. If stainless steel vent sys­tems are used, follow the manufacturer’s instructions, in conjunction with
these instructions.

I. Non-Direct Vent Installation

The air for combustion is taken from the ambient air surrounding the boil­er; therefore, ample supply of air is required for combustion and ventila­tion (see page 6.)

DO NOT use this installation method if the surrounding of the boiler is
contaminated. See page 6 for the list of harmful contaminants and their
sources, to avoid.

CAUTION: Flue gasses exiting from the vent terminal will condense.
Building materials in the area of the vent terminal should be protected
from discoloration and degradation.

VENT TERMINATION LOCATION AND CLEARANCES

1. The venting system shall terminate at least 3 feet above any forced
air inlet located within 10 feet.

2. The venting system shall terminate at least 12 inches below, or 12
inches horizontally from any door, window or gravity air inlet into
any building. The bottom of the vent terminal or air intake terminal
shall be at least 12 inches above grade or the normal snow level
whichever is greater.

3. Through the wall vents shall not terminate over public walkways or
over areas where condensate or vapor could create a nuisance or
hazard or could be detrimental to the operation of regulators, relief
valves or other equipment. Minimum clearance of 4 feet horizontal
distance is maintained, from electric meters, gas meters, regulators
and relief equipment.

4. Vent termination must not be located in any confined space (i.e.
window wells, alcoves, narrow alleys) or under any over hang or deck.
Vent termination should not allow flue gas discharge towards neigh­bor’s windows or where personal injury or property damages can occur.

A. NON-DIRECT VENT - VERTICAL VENTING

Figure shows typical venting through the roof. The vent pipe must pass
through the ceiling, floor and the roof vertically through a 8" minimum diam­eter cutout. A fire stop is required for each ceiling and floor penetration. For
roof passage, an appropriate UL listed roof flashing must be used.

An existing chimney may be used as a chase for vertical venting. Other
appliances CANNOT be vented into the same chimney or vent pipe with in
the chimney.

The vertical vent piping must terminate with a screened tee, combination of
45˚ elbow and a 90˚ screened elbow termination or a rain cap termination.

II. Direct Vent Installation

Air intake piping from outside to the boiler air intake adapter provides the
air for combustion. The boiler surrounding may be contaminated (See
page 6). Piping the air intake to the outside can prevent contaminants
from the boiler surrounding from entering the combustion air supply.

B. SIDEWALL DIRECT VENTING
Vent termination location and clearances for non-direct vent stated

in paragraph I, also applies to sidewall direct venting.

• See figure 4, 5 & 6 for direct vent side wall venting using the

Slant/Fin vent/air intake termination.

• See figure 6 for direct vent side wall venting with close spacing.

• See figure 7 & 8 for direct vent through the roof.

CAUTION: Flue gasses existing from the vent terminal will condense.

Building materials in the area of the terminal should be protected from
discoloration and degradation.

Jaguar Caravan Multiple and Cascading Boilers 9

Wall opening for Slant/Fin
vent air intake termination
Height - 5 3/4"
Width - 12 3/4”
Wall thickness - 3” to 14”

Figure 4.

Jaguar Caravan Multiple and Cascading Boilers10

Figure 5.

Jaguar Caravan Multiple and Cascading Boilers 11

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**

Figure 6. Alternative multiple side wall air intake & exhaust venting.

Note:

• Air intake opening must be 12 inches minimum above snow line or grade if it does not snow in
area boilers are located.

• No minimum horizontal distance between outlets or inlets.

• Exhaust termination to extend beyond air intake, prevent condensation from falling onto air intake

** Knowledge of local conditions will reveal the maximum height that repeated snowfalls
accumulate to. This height should be used as the snow line.