Bradford White BJVS Installation Manual
Installation and Operation Instructions Document 1257C
Installation and
Operation Instructions for
Brute Mini
Residential
Gas-Fired
Hydronic Boilers
Model BJVS
Sizes 50-225
U.S. Patent No. 1,609,692
Canada Patent No. 383,318
Vent damper is optional in some provinces of Canada..
These instructions are to be stored next to the boiler for reference purposes.
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualied in hot water boiler installation and maintenance. Improper installation and/or operation could
create carbon monoxide gas in ue gases which could cause serious injury, property damage, or death.
Improper installation and/or operation will void the warranty.
WARNING
If the information in this manual is not followed
exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
nearby phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the
re department.
Installation and service must be performed by
a qualied installer, service agency, or gas
supplier.
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d’incendie ou d’explosion
ou pour éviter tout dommage matériel, toute
blessure ou la mort.
Ne pas entreposer ni utiliser d’essence ni
d’autres vapeurs ou liquides inammables dans
le voisinage de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d’allumer d’appareils.
• Ne touchez à aucun interrupteur. Ne pas
vous servir des téléphones dansle bâtiment
où vous êtes.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions
du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur
de gaz, appelez le sservice des incendies.
L’installation et l’entretien doivent être assurés
par un installateur ou un service d’entretien
qualié ou par le fournisseur de gaz.
AVERTISSEMENT
H2359000C
Page 2
TABLE OF CONTENTS
B
RADFORD WHITE
SECTION 1.
General Information
1A. Introduction ....................................................3
1B. Warranty ........................................................ 3
1C. Heater Identication .......................................4
SECTION 2.
Boiler Assembly & Placement
2A. Field Assembly ..............................................4
2B. Boiler Placement ...........................................5
2C. Flooring ..........................................................5
2D. Clearance / Closet Installations .....................5
2E. Dimensional Information ................................6
SECTION 3.
Air and Venting
3A. Combustion Air Supply .................................. 6
3B. Venting ...........................................................8
3C. Vertical Venting - Category I .......................... 8
3D-1 Horizontal Venting - Category III ....................9
3D-2 Venting Connections ....................................10
3E. Common Venting System ............................ 11
SECTION 6.
6A. Electrical Wiring ...........................................19
6B. Outdoor Reset .............................................19
6C. Wiring Diagram and Ladder Diagram .....20-21
6D. Multiple Zone Wiring .................................... 22
SECTION 7.
7A. Filling the System ........................................23
SECTION 8.
Operating Procedures
8A. System Start-up ...........................................23
8B. Sequence of Operation ................................ 23
8C. Operating Instructions, ..............................24
8D. Operating Temperature Control ...................25
SECTION 9.
9A. Maintenance ................................................ 27
9B. Electrical Troubleshooting ...........................28
SECTION 10. Replacement Parts
10A. Glossary of Terms ........................................31
10B. Parts List .................................................... 32
SECTION 4.
Gas Connections
4A. Gas Supply and Piping ................................ 12
4B. Special Precautions for LP .........................13
SECTION 5.
Water Connections
5A. Water Piping ................................................ 15
5B. By-pass Piping ............................................. 15
5C. Adjusting the bypass ...................................16
5D. Alternate Auto-Bypass Operation ................16
5E. Flow Requirements ...................................... 16
5F. Chilled Water Systems ................................17
5G. Oxygen Permeable Systems ....................... 17
5H. Anti-Freeze ..................................................17
Brute Mini
SECTION 1.
General Information
1A. Introduction
This manual provides information necessary for
the installation, operation, and maintenance of the
Bradford White Model BJVS low pressure,
copper tube hydronic boiler.
All application and installation procedures should
be reviewed completely before proceeding with the
installation. Consult the Bradford White factory, or
local factory representative, with any problems or
questions regarding this equipment. Experience has
shown that most operating problems are caused by
improper installation.
WARNING
This hydronic boiler must be installed in
accordance with the procedures detailed in this
manual, or the Bradford White warranty will be
voided. The installation must conform to the
requirements of the local jurisdiction having
authority, and, in the United States, to the latest
edition of the National Fuel Gas Code, ANSI
Z223.1. In Canada, the installation must conform
with the latest edition of CAN/CGA B149.1 OR .2
installation codes for gas burning appliances, and/
or local codes.
Any modications to the boiler, its gas controls,
gas orices, wiring or draft inducer assembly
may void the warranty. If eld conditions require
modications, consult the factory representative
before initiating such modications.
Page 3
1B. Warranty
Bradford White appliances are covered by a
limited warranty.
All warranty claims must be made to an authorized
Bradford White wholesale rep / distributor. To nd
information about the wholesalers in your area,
please go to www.bradfordwhite.com. and click on
'Wholesalers'.
Claims must include the serial number and model
(this information can be found on the rating plate),
installation date, and name of the installer. Shipping
costs are not included in the warranty coverage.
Some accessory items are shipped in separate
packages. Verify receipt of all packages listed on
the packing slip. Inspect everything for damage
immediately upon delivery, and advise the carrier of
any shortages or damage. Any such claims should be
led with the carrier. The carrier, not the shipper, is
responsible for shortages and damage to the shipment
whether visible or concealed.
The warranty does not cover damage caused by
improper assembly installation, operation or eld
modication.
ATTENTION
L' eau chaude chaudière doit être installé en
conformité avec les procédures détaillées dans
ce manuel, ou le Bradford White garantie sera
annulée. L'installation doit être conforme aux
exigences de la juridiction locale ayant l'autorité,
et, aux ÉTATS-UNIS , à la dernière édition du
National gaz carburant Code, ANSI Z223.1. Au
Canada, l'installation doit être conforme à la plus
récente édition de la norme CAN/CGA B149.1
ou .2 codes d'installation gaz pour appareils de
combustion et/ou codes locaux.
Page 4
1C. Heater Identication
Consult the rating plate on the boiler. The following
example simplies the heater identication:
B
RADFORD WHITE
1 2 4 5 6 7 8 9 10 11 12 13
3
V SJ U 2B
BRADFORD
WHITE
MODEL
J V
Model NoMeNclature
1st thru 3rd CharaCters (Model designation)
BJV = Bradford White Corp.
Brute Mini
4th CharaCter (ignition systeM)
s = spark ignition
5th thru 7th CharaCters (size)
input MBtu / h
8th CharaCter (fuel)
n = natural gas
p = propane gas
9th CharaCter (firing systeM)
D = on / off
10th CharaCter (ConstruCtion option)
i = (standard)
J = puMp (050-125 only)
11th CharaCter (altitude in feet)
s = (0 - 2,000) natural or (0 - 5,000) propane
h = (2,001 - 5,000) natural
i = (5,001 - 8,000) natural and propane
J = (8,001 - 10,000 natural and propane
12th CharaCter (Country)
u = usa & C
13th CharaCter (reVision)
2 = seCond reVision
IGNIT
SYST
S
Table 1. Boiler Model Identication.
anada
SIZE
0 5 0
0 7 5
1 0 0
1 2 5
1 6 0
2 2 5
FUEL
N
P
FIRING
SYST
C
D
CONST
OPTION
S
I
J
ALTITUDE
S
H
I
J
COUNTRY
U
SECTION 2.
Boiler Assembly and Placement
2A. Field Assembly
The Brute Mini is available only with a spark ignition
system and this is indicated on the rating plate, which
can be found on top of the boiler in the right rear corner.
The Bradford White automatic vent dampers are
also standard sizes. And the Bradford White side
wall power venters can be used on sizes. Special
instructions for their installation are included in the
vent damper and power venter package. Read them
carefully before installation.
Vent Damper:
1. Brute Mini's have built-in draft diverter for
natural draft operation.
2. Find the vent damper box which is located in the
boiler package.
3. Install the vent damper directly to the top of the
draft diverter outlet with the damper operator
facing to the front of the boiler, and with the ow
direction arrow pointing upward. Use the vent
damper wire harness provided with the boiler
to connect the vent damper to the boiler. The
bracket end of the harness should be connected to
the vent damper actuator.
4. Install the metal plug provided with the vent
damper onto the damper plate hole.
REVISION
2
Brute Mini
Page 5
5. Do not modify the automatic vent damper device.
It is very important that no other vents are closed.
Provide at least six inches clearance between
the automatic vent damper and combustible
construction, and be sure to allow access for
servicing the damper.
Temperature/Pressure Gauge: Install the temp/
pressure gauge provided in the parts box.
2B. Boiler Placement
1. The boiler must be placed to provide clearances
on all sides for maintenance and inspection. There
must also be minimum distances maintained from
combustible surfaces. Avoid locations which can
be damaged by water or moisture.
2. A minimum of 15" (381mm) access must be
available in front of the boiler for burner tray
removal. Consult local codes for clearances to hot
water pipes and accessories.
3. If the boiler is to be installed in a garage, all
burners and burner ignition devices must have
a minimum 18" (457mm) clearance
above the oor.
4. Boilers can be installed in a closet as long as
the minimum clearances shown in Table 2 are
observed. Special attention should be paid to
clearances between the front of the boiler and the
closet door when it is closed (see Figure 2).
2C. Flooring
BJVS model boilers can only be installed on
noncombustible ooring.
All boilers must be installed on a level oor and
must NEVER be installed on carpeting.
NEVER store objects on or around the boiler.
Noncombustible ooring is dened as ooring
material and surface nish not capable of being
ignited and burning and with no combustible materials
against the underside. Acceptable materials are those
consisting entirely of a combination of steel, iron,
brick, tile, concrete, slate, glass or plaster.
WARNING
This boiler is intended for indoor installation only.
Do not install this boiler in a location subject to
negative pressure, or improper operation will occur.
Avertissement
Cette chaudière est destiné pour une installation
intérieure uniquement. Ne pas installer cette
chaudière dans un endroit soumis à pression
négative, ou fonctionnement incorrect se produira
The Brute Mini can be installed on a combustible
oor if a noncombustible base assembly, available
from Bradford White, is used. See the Parts
List at the back of this manual for the appropriate
Noncombustible Base Kit part number.
Figure 1. Typical Combustible Floor Installation.
As an alternative to the Bradford White
Noncombustible Base Kit, in the United States the
National Fuel Gas Code allows a heater to be placed
on a combustible surface when there is a platform
under the heater made of hollow masonry no less
than 4 inches (102 millimeters [mm]) thick, covered
with sheet metal at least 24 gauge thick and extending
beyond the full width and depth of the heater by at
least 12 inches (305mm) in all directions. The masonry
must be laid with ends unsealed, and joints matched to
provide free circulation of air from side to side through
the masonry (see Figure 1). If the boiler is installed in
a carpeted alcove, the entire oor of the alcove must
be covered by a noncombustible platform.
2D. Clearance / Closet Installations
All Brute Mini JV's can be installed in a closet as
long as the minimum clearances are observed.
See Table 2A and Figure 2B for clearances
required for the Brute Mini
Special attention should be paid to clearances
between the front of the boiler and the closet door
when it is closed.
Consult the American National Standard Z21.13 for
more information concerning closet installations. In
Canada, refer to the latest edition of CSA-B149.1.
Caution
Do not force motor operation when operator is
fastened to the damper by moving the damper
blade, turning the shaft or by turning the position
indicator.
Attention
Ne pas tourner le registre manuellement avec
ou sans courant électrique ou le moteur sera
endommagé.
6
152
7
180
C B
25
635
2.4
61
24
610
Page 6
B
RADFORD WHITE
2E. Dimensional Information
Dimensions in
inches
mm
7
180
9 -1/4
240
Water
Size A B C D E V
in. mm in. mm in. mm in. mm in. mm in. mm 1-1/4 1/2
50 13-3/8 340 27-3/4 710 23-5/8 600 21-3/4 550 26-1/2 670 4 10 1-1/4 1/2
75 13-3/8 340 27-3/4 710 24-1/8 610 21-3/4 550 27-1/2 700 5 13 1-1/4 1/2
100 16-7/8 430 28-3/4 730 24-1/8 610 22-3/4 580 27-1/2 700 5 13 1-1/4 1/2
125 16-7/8 430 28-3/4 730 23-5/8 600 22-3/4 580 27-1/2 700 6 15 1-1/4 1/2
160 20-3/8 518 28-3/4 730 23-5/8 600 22-3/4 580 27-1/2 700 6 15 1-1/4 1/2
225 25-5/8 651 31-1/2 800 23-1/4 590 23-3/4 630 27-1/2 700 7 18 1-1/4 3/4
Conn
BJVS Dimensions
Gas
Conn
Brute Mini
Boiler Size Outside Air Area Inside Air Area
sq. in
sq. cm
sq. in.
sq. cm
50
15
97
100
645
75
20
129
100
645
100
25
161
100
645
125
32
206
125
807
160
40
258
160
1032
225
60
387
225
1452
*Area indicated is for one of two openings: one at floor level
and one at the ceiling, so the total net free area would be
double the figures shown. For special conditions, refer to
NFPA54 ANSI Z223.1. In Canada, refer to the National
Standard CAN1-B149.1 or .2, which differs from this table.
NOTE: Check with louver manufacturers for Net Free Area of
Louvers. Correct for screen resistance to the Net Free Area if a
screen is used.
Page 7
Boiler Sizes 50 - 125 160 - 225
Clearances in cm in cm
Left side 6 15 6 15
Right side 6 15 6 15
Rear 6 15 6 15
Front 4 10 4 10
Flue 6 15 6 15
Top 23 58 36 91
Table 2A Minimum Boiler Clearances
Note: Clearances listed are manufacturer’s tested values. These
are given as minimum values. Where local and national
codes apply, and values are different than those listed use
the greater value to ensure safe operation.
Minimum Boiler Clearances from Combustible Surfaces.
Dégagements Minimaux à Assurer Entre Ics Parois de
L’appareil et leo Constructions Combustibles
6 15
Outside Air Supply: When combustion air is
supplied directly through an outside wall, each
opening should have a minimum free area of one
square inch per 4,000 BTU/h (6 sq. cm per 1.2 kW)
input of the total input rating of all appliances in the
enclosed area.
Inside Air Supply: When combustion is supplied
from inside the building, each opening should have
a minimum free area of one square inch per 1,000
BTU/h (6 sq. cm per 0.3 kW) input of the total input
rating of all appliances in the enclosed area. These
openings should never be less than 100 square inches
(645 sq. cm).
4*
10
6 15
Dimensions in inches cm.
*6" for models JV160 to JV225.
Figure 2B. Closet Installation
SECTION 3.
Air and Venting
3A. Combustion Air Supply
The boiler location must provide sufcient air
supply for proper combustion, and ventilation of
the surrounding area as outlined in the latest edition
of U.S. ANSI standard Z223.1 or in Canada, CAN/
CGA-B149.1 or .2, and any local codes that may be
applicable.
In general, these requirements specify that the
boiler rooms which represent conned spaces should
be provided with two permanent air supply openings;
one within 12 inches (305mm) of the ceiling, the other
within 12 inches (305mm) of the oor.
NOTE: In Canada, follow Canadian Standard,
CAN/CGA-B149 or local codes.
6 15
Table 3. Minimum Recommended
Air Supply to Boiler Room
Exhaust Fans or Vents: Any equipment which
exhausts air from the boiler room can deplete the
combustion air supply or reverse the natural draft
action of venting system. This could cause ue
products to accumulate in the boiler room. Additional
air must be supplied to compensate for such exhaust.
The information in Table 3 is not applicable in
installations where exhaust fans or blowers of any
type are used. Such installations must be designed by
qualied engineers.
If a blower or fan is used to supply air to the boiler
room, the installer should make sure it does not create
drafts which could cause nuisance shutdowns. If a
blower is necessary to provide adequate combustion
air to the boiler, a suitable switch or equivalent must
be wired into the boiler control circuit to prevent the
boiler from ring unless the blower is operating.
The boiler must be completely isolated and
protected from any source of corrosive chemical
fumes such as those emitted by trichloroethylene,
perchloroethylene, chlorine, etc.
Page 8
3B. Venting
B
RADFORD WHITE
Vent Categories: Brute Mini BJVS is a natural draft
appliance for Category I venting only.
WARNING
This boiler must be vented in accordance with
Part 7, Venting of Equipment, of the latest edition
of the National Fuel Gas code, ANSI Z223.1 and
all applicable local building codes. In Canada,
follow CAN/CGA B149 Installation codes.
Improper venting of this appliance can result in
excessive levels of carbon monoxide which can
result in severe personal injury or death!
AVERTISSEMENT
Cette chaudière doit être ventilé, conformément
aux dispositions de la partie 7, de la ventilation de
l'équipement, de la dernière édition du National
gaz carburant code, ANSI Z223.1 et tous les
codes du bâtiment locaux. Au Canada, CAN/
CGA B149 codes d'installation. Une mauvaise
ventilation de cet appareil peut entraîner des
niveaux excessifs de monoxyde de carbone qui
peut entraîner de graves blessures ou la mort!
The boiler vent collar must be fastened directly to
an unobstructed vent pipe with rustproof sheet metal
screws no longer than 1/2” (13mm) and located to
prevent interference with the inducer damper.
Do not weld the vent pipe to the boiler collar. The
weight of the stack must not rest on the boiler. The
boiler top must be easily removable for normal boiler
service and inspection.
Avoid terminating boiler vents near air conditioning
or air supply fans. The fans can pick up exhaust
ue products from the boiler and return them to the
building, creating a possible health hazard.
Avoid oversized vent pipe or extremely long runs
of the pipe, which may cause excessive cooling and
condensation.
3C. Vertical Venting - Category I
All venting must comply with fuel gas code and
be installed by a licensed professional.
The Brute Mini boiler can be vented into a masonry
chimney, (see Figure 2) provided several conditions
are met:
1. The chimney must have an appropriate tile lining
that is clean, properly constructed and properly
sized.
2. The chimney passage way shall be examined to
ascertain that it is clear and free of obstructions.
3. If a chimney rebuild is required, it shall conform
to nationally recognized standards (see National
Building Code or ANSI/NFPA 211).
4. The boiler must not be connected to a replace,
wood stove or other solid fuel burning
equipment.
5. When the boiler and a hot water heater are to be
connected to the same chimney, they must have
their own vent connector and enter the chimney
at least 6” (152mm) apart.
IMPORTANT NOTE: Always provide a minimum
clearance of 6” (152mm) between Type C (single wall)
vent pipe and any combustible materials.
CHIMNEY
LINER
THIMBLE
CLEANOUT
Figure 3. Chimney Venting. Figure 4. Vertical Venting.
1/4"
PER FT.
(20mm PER M)
SLOPE
VENT
SYSTEM
BOILER
CHIMNEY
LINER
THIMBLE
CLEANOUT
1/4"
PER FT.
(20mm PER M)
SLOPE
VENT
SYSTEM
12" (305mm)
BOILER
Brute Mini
10 (3.0) OR
LESS
Page 9
MORE THAN 10
(3.0)
RIDGE
2 (0.6) MIN.
WALL OR
PARAPET
CHIMNEY
10 (3.0)
OR LESS
2 (0.6)
MIN.
CHIMNEY
3 (0.9)
MIN.
TERMINATION
OR LESS FROM RIDGE,
WALL OR PARAPET
3 (0.9)
MIN.
Figure 5. Vertical Vent Termination.
WARNING
Do not store any chemical, cleaners, or other
corrosive material near combustion air openings
or in the room. Avoid locating dryer vents in the
vicinity of combustion air openings. Failure to
prevent corrosive materials from mixing with
combustion air can result in reduced boiler life
and unsafe boiler operation.
AVERTISSEMENT
N’entrepposer aucun produit chimique, produit
nettoyant ou produit corrosif à proximité des
bouches d’air de combustion ou dans la pièce.
Éviter de placer des tuyaux de ventilation pour
sécheuse à proximité des bouches d’air de
combustion. Le fait de laisser des maitières
corrosives se mélanger à l’air de combustion
risque de réduire le cycle de vie de l’appareil
de chauffage et de compromettre son
fonctionnement.
10 FT. (3.0m)
Dimensions in feet (m).
3 (0.9)
MIN.
WALL OR
PARAPET
NOTE: NO HEIGHT
ABOVE PARAPET
REQUIRED WHEN
FROM WALLS OR
PARAPET IS MORE
THAN 10 FT. (3.0m)
CHIMNEY
RIDGE
MORE THAN 10
(3.0)
2 (0.6)
MIN.
CHIMNEY
10 (3.0)
3 (0.9)
MIN.
When installing the vent system, all applicable
national and local codes must be followed! The use
of thimbles, restops and other protective devices,
when penetrating combustible or noncombustible
construction, must be in accordance with all applicable
national and local codes.
An unused lined chimney can be used as a raceway
for single wall vent pipe, (see Figure 3). Never run
vent pipe through a ue that has another appliance
attached to it.
3D-1. Horizontal Venting - Category III
The Brute Mini BJVS cannot be vented horizontally.
BOILER VENTING
DETAIL
OUTSIDE WALL
VENT
SYSTEM
SHEET METAL
SCREWS
WARNING
Single wall vent pipe must NEVER pass through
interior walls or through oors or ceilings! Failure
to comply with this warning could result in a re
causing property damage, personal injury, or death!
AVERTISSEMENT
Paroi simple tuyau d'évent doit jamais passer par
l'intérieur les murs ou par planchers ou plafonds
! Le non-respect de cet avertissement peut
provoquer un incendie causant des dommages
matériels ou corporels, ou de mort!
THIMBLE
BOILER
VENT TERMINAL
HOOD
Figure 7. Horizontal Venting.
12" (305mm)
*
MIN.
CAULK ENTIRE
JOINT, INCLUDING
THE SCREWS
*WHEN HORIZONTAL RUN
EXCEEDS 5 FT. (1.5m)
Page 10
Si ze
Diameter
No. of
Elbows
Horizontal Run Length
in.
mm
ft.
m
50 - 160
4
102
4
35
10.7
225
4
102
2
10
3.0
225
6
152
4
35
10.7
3D-2. Vent Connections
The vent system must be gas tight. All seams and
joints must be sealed with silicone sealant or adhesive
tape having a minimum temperature rating of 400°F
(204ºC). Use at least three corrosion resistant screws at
each slip joint, when required.
For best results, horizontal vent systems should
be as short and straight as possible. Material of vent
connectors shall be as follows:
Description Manufacturer Product
High Temperature
RTV
2" (51mm) wide
Aluminum foil tape
- adhesively backed
2" (51mm) wide
Aluminum foil tape
- adhesively backed
Vent Sealing Materials.
Dow Corning Trade Mate
Venture
Product
#3243
3M Product #433
B
RADFORD WHITE
The boiler vent collar must be fastened to the vent
pipe with rustproof metal screws no longer than 1/2”
(13mm) and sealed with high temperature (500ºF /
260ºC) silicone sealant. For larger diameter vent pipes,
use a sealed reducer fastened directly to the boiler
collar and seal all joints as indicated in Figure 7.
Allow the sealant to cure for 24 hours before operating
the boiler.
The entire vent system must not exceed the size
specied in Table 4.
The following criteria must be observed:
1. Attach a vertical pipe at least 12” (305mm) high
to the boiler outlet before the horizontal run if
run exceeds 5 feet (see Figure 5).
2. Support the vent run at 3’ (.9m) intervals with
overhead hangers.
3. Pitch down the vent run, toward the vent terminal
(hood), 1/4” per foot (20mm per meter).
4. Do not locate any joint screws at the bottom of
the vent run.
Materials Vent Length
In U.S.A.: UL type 304, 316 or 294-C
stainless steel or equal 26 gauge minimum.
In Canada: Use "BH-Type" vent
material certied to ULD-S636 Class I
(more than 135°C, but not more than 245°C
ue gas temperature), made of AL29-4C
stainless steel or equal.
Do not use plastic venting of any kind.
VENT TERMINAL
VENT
TERMINAL
4 (1.2)
MIN.
12 (3.7)
MIN.
4 (1.2)
MIN.
Up to a maximum
of 55' (17m) of
equivalent pipe run
(including required
elbows).
LESS THAN
3 (0.9)
MIN.
For each elbow eliminated, add 5’ (1.5m) of allowable vent.
VENT TERMINAL
10
(3.0)
6 (1.8) MIN.
GRADE
Table 4. Horizontal Venting Conguration.
SEAL ENTIRE
CIRCUMFERENCE
OF JOINT
CAULK JOINTS
ANCHORED
FASTENER
THIMBLE
SHEET METAL
SCREWS
CAULK JOINTS
ANCHORED
FASTENER
EXHAUST
HOOD
Dimensions in
feet (m).
Figure 6. Horizontal Vent Termination.
FORCED
AIR INLET
VENT TERMINAL DETAIL
Brute Mini
Page 11
3E. Common Venting System
When an existing boiler is removed from a common
venting system, the common venting system is likely
to be too large for proper venting of the appliances
remaining connected to it.
At the time of removal of an existing boiler, the
following steps shall be followed with each appliance
remaining connected to the common venting system
placed in operation, while the other appliances
remaining connected to the common venting system
are not in operation.
1. Seal any unused openings in the common venting
system.
2. Visually inspect the venting system for proper
size and horizontal pitch and determine there is
no blockage or restriction, leakage, corrosion or
other deciencies which could cause an unsafe
condition.
3. Insofar as it is practical, close all building doors
and windows and all doors between the space in
which the appliances remaining connected to the
common venting system are located and other
spaces of the building. Turn on clothes dryers
and any gas burning appliance not connected
to the common venting system. Turn bathroom
exhausts, so they will operate at maximum speed.
Do not operate a summer exhaust fan. Close
replace dampers.
WARNING
Operation of appliances with a blocked common
vent may lead to serious injury or death. Safety
devices must be implemented to prevent blocked
common vent operation. If safe operation of all
appliances connected to a common vent cannot
be assured, including prevention of spillage of ue
gasses into living spaces, common venting should
not be applied, and appliances should each be
vented separately.
AVERTISSEMENT
Le fonctionnement des appareils avec un
système d’évacuation bloqué peut provoquer des
blessures graves, voire la mort. Des dispositifs
de sécurité doivent être installés pour éviter
le blocage des systèmes d’évacuation. Si le
fonctionnement de tous les appareils connectés
à un système d’évacuation commun ne peut
pas être assuré, y compris la prévention de la
dispersion des gaz toxiques dans les espaces
habités, on ne devrait pas installer un système
d’évacuation commun et chaque appareil devrait
être ventilé séparément.
4. Place in operation the appliance being
inspected. Follow the lighting instructions.
Adjust thermostat so appliance will operate
continuously.
5. Test for spillage at the burner opening after ve
minutes of main burner operation.
6. After it has been determined that each appliance
remaining connected to the common venting
system properly vents when tested as outlined
above, return doors, windows, exhaust fans,
replace dampers and any other gas burning
appliance to their previous conditions of use.
7. Any improper operation of the common venting
system should be corrected so the installation
conforms with the National Fuel Gas Code,
ANSI Z223.1. When re-sizing any portion
of the common venting system, the common
venting system should be re-sized to approach
the minimum size as determined using the
appropriate tables in Appendix G in the National
Fuel Gas Code, ANSI Z223.1.
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