Bradford-White BMT2V, BMT2H User Manual

Installation and Operation Instructions Document 1245
Installation and Operation Instructions for
BRUTE DELUXE
Hydronic Boiler
Model BMT2H
Volume Water Heater
Model BMT2V
Sizes 500–2000 MBTU/h
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in hot water boiler installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty. For indoor installations, as an additional measure of safety, Bradford White strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces.
WARNING
followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
Do not store or use gasoline or other flammable 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 fire department.
Installation and service must be performed by a qualified 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 inflammables 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 vous trouvez.
• 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 qualifié ou par le fournisseur de gaz.
AVERTISSEMENT
H2343300-
238-49222-00A REV 4/11
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BRADFORD WHITE CORP.
TABLE OF CONTENTS
SECTION 1. General Information
1.1 Introduction ........................................................ 3
1.2 Model Identification ............................................ 3
1.3 Warranty ............................................................ 4
1.4 Dimensions ......................................................... 4
1.5 Locating the Appliance ....................................... 4
1.6 Locating Pump-Mounted Water Heater
with Respect to Storage Tank(s) ........................ 4
1.7 Locating Pump-Mounted Boiler with Respect .......
to Return/Supply Header .................................... 5
1.8 Locating Appliance for Correct Horizontal Vent/ ...
Ducted Air Distance from Outside Wall .............. 5
SECTION 2. Venting and Combustion Air
2.1 Combustion Air ................................................... 7
2.1.1 Combustion Air From Room ............................... 7
2.1.2 Intake Combustion Air ........................................ 7
2.2 Venting ............................................................... 8
2.2.1 Vent Categories ................................................. 8
2.2.2 Category I Vent .................................................. 8
2.2.3 Common Venting Systems ................................. 8
2.2.4 Category III Vent................................................ 9
2.3 Locating Vent & Combustion Air Terminals ......... 9
2.3.1 Side Wall Vent Terminal ...................................... 9
2.3.2 Side Wall Combustion Air Terminal ..................... 9
2.3.3 Vertical Vent Terminal ......................................... 9
2.3.4 Vertical Combustion Air Terminal ...................... 11
2.4 Common Vent Test — Boilers .......................... 11
2.5 Vent Terminals for Outdoor Units ...................... 12
SECTION 3. Gas Supply and Piping
3.1 Gas Supply and Piping ..................................... 12
SECTION 5. Electrical Connections
5.1 Main Power...................................................... 21
5.2 Field Wiring ...................................................... 21
5.3 External Staging Control Wiring ........................ 26
SECTION 6. Operating Instructions
6.1 Sequence of Operation .................................... 26
6.2 Filling the Boiler System ................................... 26
6.3 Operating Temperature Control ........................ 27
6.4 External Boiler Operations ............................... 27
6.5 Limit Controls ................................................... 28
6.6 Operating the Burner and Set Up ..................... 28
6.6.1 Set Up for 0 to 2500 Feet Altitude.................... 28
6.6.2 High Altitude Adjustment and Set Up ................ 28
6.7 Shutting Down the Brute Deluxe ....................... 29
6.8 To Restart the Brute Deluxe ............................. 29
SECTION 7. Maintenance
7.1 System Maintenance ........................................ 29
7.2 Appliance Maintenance and
Component Description .................................... 29
7.2.1 Burners ............................................................ 29
7.2.2 Filter................................................................. 30
7.2.3 Gas Valves....................................................... 30
7.2.4 Manual Reset High Limit Control ...................... 30
7.2.5 Temperature Control ........................................ 30
7.2.6 Ignition Controls ............................................... 30
7.2.7 Ignitors/Sensor ................................................. 30
7.2.8 Transformer ..................................................... 30
7.2.9 Blowers ............................................................ 30
7.2.10 Flow Switch ..................................................... 30
7.2.11 Heat Exchanger Coil ......................................... 31
SECTION 4A. Water Connections — Boiler
4A.1 Heating System Piping:
Hot Supply Connections — Boiler ..................... 13
4A.2 Cold Water Make-Up — Boiler......................... 14
4A.3 Water Flow Requirements — Boiler ................. 14
4A.4 Freeze Protection — Boiler .............................. 14
SECTION 4B. Water Connections — Water Heaters
4B.1 Water System Piping — Water Heater ............. 14
4B.2 Hot Water Supply Piping — Water Heater ........ 15
4B.3 Water Flow Requirements — Water Heater ..... 15
4B.4 Combined Water Heating (potable)
and Space Heating — Water Heater ................ 15
4B.5 Freeze Protection – Water Heater ................... 15
SECTION 8. Trouble Shooting
8.1 Resolving Lockouts .......................................... 31
8.2 Delayed Ignition — Possible Causes................ 31
8.3 Short Cycling — Boiler ..................................... 32
8.4 Short Cycling — Water Heater ......................... 32
8.5 High Gas Consumption ..................................... 32
SECTION 9. Replacement Parts
9.1 General Information ......................................... 32
9.2 Parts List . ....................................................... 33
Brute Deluxe (500-2000)
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SECTION 1. General Information
USING THIS MANUAL – Because Brute Deluxe Boilers and Water Heaters are identical appliances, with the exception of materials of manufacture, labels and ultimate use application, this manual provides information for the proper installation, operation and maintenance of all products. Where differences exist between the application of the appliances and their operation, the sections pertinent to only one appliance or the other will be so identified.
In the Commonwealth of Massachusetts, this app­liance must be installed by a licensed plumber or gas fitter.
WARNING
The Brute Deluxe hydronic boiler or water heater must be installed in accordance with the procedures detailed in this manual, or the Bradford White warranty may 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/NFPA54. In Canada, the installation must conform to the latest edition of the Natural Gas and Propane Installation Code, CSA B149.1 and/or local codes. Where required by the authority having jurisdiction, the installation of appliances must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1. Any modifications to the unit, its gas controls, or wiring may void the warranty. If field conditions require modifications, consult the factory representative before initiating such modifications.
1.1 Introduction
This manual provides information necessary for the installation, operation, and maintenance of Bradford White Brute Deluxe copper tube appliances. Read it carefully before installation.
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 issues or questions regarding this equipment. Experience has shown that
most operating issues are caused by improper installation.
The Brute Deluxe appliance is protected against over pressurization. A pressure relief valve is fitted to all appliances. It is installed on the outlet header, at the water outlet of the appliance.
IMPORTANT: The inlet gas pressure to the appliance must not exceed 13" W.C. (3.2kPa).
All installations must be made in accordance with:
1). In the U.S., the " National Fuel Gas Code"ANSI Z223.1/NFPA54, Latest Edition and all applicable local codes as required by the Authorities Having Jurisdiction (AHJ), or
2). In Canada, the "Natural Gas and Propane
Installation Code", CSA B149.1, latest edition and
all applicable local codes as required by the AHJ.
All electrical wiring is to be done in accordance with:
1). In the U.S., the "National Electrical Code" (NEC), ANSI/NFPA 70, latest Edition and all applicable local codes as required by the AHJ, or
2). In Canada, the “Canadian Electrical Code - Part 1”, CSA STD. C22.1 and all applicable local codes as required by the AHJ.
This appliance must be electrically grounded in accordance with the applicable codes and standards referenced above.
1.2 Model Identification
Consult the rating plate on the unit. The following
information describes the model number structure.
1-4 Model Series Designation
B M T 2 = Brute Deluxe
4 Usage
H = Hydronic V = Volume Water
5-8 Size
0 5 0 0 = 500,000 BTU/h input 0 7 5 0 = 750,000 BTU/h input 1 0 0 0 = 999,000 BTU/h input 1 2 5 0 = 1,250,000 BTU/h input 1 5 0 0 = 1,500,000 BTU/h input 1 7 5 0 = 1,750,000 BTU/h input 2 0 0 0 = 1,999,000 BTU/h input
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
B M T 2 A C K 1
SERIES
B M T 2
USAGE
H
V
SIZE
0 500
0 750
1 000
1 250
1 500
1 750
2 000
FUEL
N
P
ALTITUDE
A
LOCATION
C
FIRING MODE
K 2-Stage
REVISION
1
HEAT
EXCHANGER
K
P
S
BMT2H: C
N
BMT2V: B
OPTIONS
CODE
X
J
PUMP
OPTIONS
BMT2V: H
N
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BRADFORD WHITE CORP.
9 Fuel
N = Natural Gas P = Propane
10 Altitude
A = 0–10,000 feet
11 Location
C = Indoor and Outdoor
12 Firing Mode
K = Two-stage
13 Revision
1 = First version of design
14 Heat Exchanger
B = Glass-lined cast iron / copper / bronze trim
(std. on BMT2V)
C = Glass-lined cast iron / copper
(std. on BMT2H)
K = Bronze / copper N = Glass-lined cast iron / cupro-nickel
(n/a on water heaters)
P = Glass-lined cast iron / cu-nickel / bronze trim S = Bronze / cupro-nickel
15 Option Code
X = Standard unit J = CSD-1, FM, IRI, IL
16 Pump Options
H = Pump mounted BMT2V, hard water pump N = Pump mounted (any), normal water pump
1.3 Warranty
Bradford White’s appliances are covered by a limited warranty. Owners should submit online warranty
registration at
www.branfordwhite.com.
All warranty claims must be made to an authorized Bradford White representative or directly to Customer Service. 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 filed with the carrier. The carrier, not the shipper, is responsible for shortages and damage to the shipment whether visible or concealed.
1.4 Dimensions
See Figures 1 and 2.
1.5 Locating the Appliance
The appliance should be located to provide clearances on all sides for maintenance and inspection. It should not be located in an area where leakage of any connections will result in damage to the area adjacent to
the appliance or to lower floors of the structure.
When such a location is not available, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance.
The appliance is design certified by CSA­International for installation on combustible flooring; in basements; in closets, utility rooms or alcoves. Brute
Deluxe Boilers or Water Heaters must never be installed on carpeting. The location for the appliance
should be chosen with regard to the vent pipe lengths and external plumbing. The unit shall be installed such that the gas ignition system components are protected from water (dripping, spraying, rain, etc.) during operation and service (circulator replacement, control replacement, etc.). When vented vertically, the Brute Deluxe must be located as close as practical to a chimney or outside wall. If the vent terminal and/or combustion air terminal terminate through a wall, and there is potential for snow accumulation in the local area, both terminals should be installed at an appropriate level above grade.
The dimensions and requirements that are shown in
Table 1 should be met when choosing the locations for
the appliance.
1.6 Locating Pump-Mounted Water Heater
with Respect to Storage Tank(s)
For best results, a pump-mounted Brute Deluxe water heater should be located within 15 feet (4.6m) of the storage tank(s). The pump is sized for 30 feet (9.1m) of piping.
If the appliance must be installed with longer piping runs, then larger diameter pipe or tubing shall be used. Consult the factory for assistance.
1.7 Locating Pump-Mounted Boiler with
Respect to Return/Supply Header
For the best results, a pump-mounted Brute Deluxe
REQUIRED RECOMMENDED
APPLIANCE CLEARANCE FROM SERVICE ACCESS
SURFACE COMBUSTIBLE MATERIAL CLEARANCE
inches cm inches cm
Left Side 1 2.5 24 61
Right Side 1 2.5 24 61
Top 1 2.5 12 30
Back 1 2.5 **12** 30**
Front 1 2.5 36 91
Vertical
(Category 1) 6* 15.2*
Vent
Horizontal per UL1738 venting
(Category 3) system supplier’s
Vent instructions
*1" (2.5cm) when b-vent is used. **When vent and/or combustion air connects to the back, recommended
clearance is 36" (91cm).
Table 1. Clearances.
Brute Deluxe (500-2000)
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Air Vent Shipping Weight
Size A B C D E W V lbs kg
500 33¾ 85 16¾ 43 17 10 25 8 20 6 15 8 20 425 193
750 45¾ 116 22¾ 53 17 10 25 24 6 15 10 25 505 229
1000 57¾ 147 28¾ 73 17 10 25 24 8 20 10 25 615 279
1250 68¼ 173 34 87 10¼ 26 10 25 9 23 8 20 12 30 675 306
1500 78¾ 200 39½ 100 10¼ 26 10 25 9 23 8 20 12 30 760 345
1750 89¼ 227 44¾ 11 3 10¼ 26 10 25 9 23 8 20 12 30 825 375
2000 99¾ 253 49¾ 127 10¼ 26 10 25 9 23 12 30 14 36 955 434
NOTES: 1. Add 55 lbs (25kg) for pump-mounted units.
Figure 1. Dimensional Data (standard units).
Boiler should be located within 15 feet (4.6m) of the supply and return headers. The pump is sized for 30 feet (9.1m) of piping.
runs, then larger diameter tubing shall be used. Consult the factory for assistance.
Dimensions in inches cm.
If the appliance must be installed with longer piping
1.8 Locating Appliance for Correct Horizontal Vent/Ducted Air Distance from Outside Wall
The forced draft combustion air blower/blowers in
the appliance has/have sufficient power to pull air and vent properly when the following guidelines for
Conn. Conn.
horizontal air and vent are followed (see Table 2).
1
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BRADFORD WHITE CORP.
Air Vent
Conn. Conn.
Size A B C D E F W V
500 33¾ 86 16¾ 43 17 10 25 8 20 46¼ 117 6 15 8 20
750 45¾ 116 22¾ 58 17 10 25 24 58¼ 148 6 15 10 25
1000 57¾ 147 28¾ 73 17 10 25 24 70¼ 178 8 20 10 25
1250 68¼ 173 34¼ 87 10¼ 26 10 25 9 23 80¾ 205 8 20 12 30
1500 78¾ 200 39½ 100 10¼ 26 10 25 9 23 91¼ 232 8 20 12 30
1750 89¼ 227 44¾ 113 10¼ 26 10 25 9 23 101¾ 258 8 20 12 30
2000 99¾ 253 49¾ 127 10¼ 26 10 25 9 23 112¼ 285 12 30 14 36
Figure 2. Dimensional Data (pump-mounted models).
SIZE SIZE DIAMETER DIAMETER LENGTH OF ELBOWS VENT COMBUSTION
VENT COLLAR VENT PIPE & PIPE MAX. PIPE MAX. NO. SIDE WALL SIDE WALL
in cm in cm in cm ft m PART NUMBER PART NUMBER
HORIZONTAL AIR COLLAR
TERMINAL AIR TERMINAL
500 8 20 6 15 6 15 50 15 3 CA001401 20260701
750 10 25 8 20 6 15 50 15 3 CA001401 20260701
1000 10 25 8 20 8 20 50 15 3 CA001402 20260703
1250 12 30 8 20 8 20 50 15 3 CA001403 20260703
1500 12 30 8 20 8 20 50 15 3 CA001403 20260703
1750 12 30 8 20 8 20 50 15 3 CA001403 20260703
2000 14 36 12 30 12 30 50 15 3 CA001404 20260706
Table 2. Horizontal Vent / Combustion Air Parameters.
Brute Deluxe (500-2000)
Page 7
NOTE: The vent collar size is larger than the size of the vent pipe that can be used. Vent collar size and horizontal pipe diameters can be found in Table 2. The larger vent collar size is to accommodate Category I (vertical) vent systems.
NOTE: When located on the same wall, the Brute Deluxe combustion air intake terminal must be installed a minimum of 12" (30cm) below the exhaust vent terminal and sep­arated by a minimum of 36 inches (91cm) horizontally.
The air intake terminal must be installed high enough
to avoid blockage from snow, leaves and other debris.
SECTION 2. Venting and Combustion Air
2.1 Combustion Air
Brute Deluxe boilers and water heaters must have provisions for combustion and ventilation air in accordance with section 5.3, Air for Combustion and Ventilation, of the National Fuel Gas Code, ANSI Z223.1, or Sections 7.2, 7.3 or 7.4 of CSA B149.1, Installation Codes, or applicable provisions of the local building codes.
A Brute Deluxe appliance may receive combustion air from the space in which it is installed, or it can be ducted directly to the unit from the outside. Ventilation air must be provided in either case.
2.1.1 Combustion Air From Room
In the United States, the most common requirements specify that the space shall communicate with the outdoors in accordance with method 1 or 2, which follow. Where ducts are used, they shall be of the same cross-sectional area as the free area of the openings to which they connect.
Method 1: Two permanent openings, one commencing within 12 inches (30 cm) of the top and one commencing within 12 inches (30 cm) of the bottom, of the enclosure shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces that freely communicate with the outdoors. When directly communicating with the outdoors, or when communicating to the outdoors through vertical ducts, each opening shall have a minimum free area of 1 square inch per 4000 BTU/hr (5.5 square cm/kW) of total input rating of all equipment in the enclosure. When communicating to the outdoors through horizontal ducts, each opening shall have a minimum free area of not less than 1 square inch per 2000 BTU/hr (11 square cm/kW) of total input rating of all equipment in the enclosure.
Table 3 shows data for this sizing method, for each Brute
Deluxe model.
Method 2: One permanent opening, commencing within 12 inches (30 cm) of the top of the enclosure, shall be permitted. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces that directly
communicate with the outdoors and shall have a minimum free area of 1 square inch per 3000 BTU/hr (7 square cm/kW) of the total input rating of all equipment located in the enclosure. This opening must not be less than the sum of the areas of all vent connectors in the confined space.
Other methods of introducing combustion and ventilation air are acceptable, providing they conform to the requirements in the applicable codes listed above.
In Canada, consult local building and safety codes or, in absence of such requirements, follow CSA B149.1.
2.1.2 Intake Combustion Air
The combustion air can be taken through the wall, or through the roof. When taken from the wall, it must be taken from out-of-doors by means of the horizontal wall terminal (see Table 2). When taken from the roof, a field-supplied rain cap or an elbow arrangement must be used to prevent entry of rain water (see Figure 3).
Use single-wall galvanized pipe, per Table 4, for the combustion air intake (see Table 2 for appropriate size). Route the intake to the heater as directly as possible. Seal all joints with tape. Provide adequate hangers. The unit must not support the weight of the combustion air intake pipe. Maximum linear pipe length allowed is 50 feet (15.2m). Three elbows have been calculated into the 50-foot (15.2m) linear run. Subtract 10 allowable linear feet (3.0m) for every additional elbow used (see Table 2). When fewer than 3 elbows are used, the maximum linear pipe length allowed is still 50 feet (15.2m).
The connection for the intake air pipe is on the filter box. The Brute Deluxe appliances have venting and combustion air ducting attached to the top.
In addition to air needed for combustion, air shall also be supplied for ventilation, including all air required for comfort and proper working conditions for personnel. The Brute Deluxe loses less than 1 percent of its input
UNIT
SIZE SQUARE INCHES SQUARE CM
500 125 807
750 188 1213 1000 250 1613 1250 313 2020
1500 375 2420 1750 438 2826 2000 500 3226
*Net Free Area in Square Inches / Square cm Area indicated is for one of two openings; one at floor level and one at the ceiling, so the total net free area could be double the figures indicated.
This chart is for use when communicating directly with the outdoors. For special conditions and alternate methods, refer to the latest edition of ANSI Z223.1.
Note: Check with louver manufacturers for net free area of louvers. Correct for screen resistance to the net free area if a screen is installed. Check all local codes applicable to combustion air.
Table 3. Combustion Air Openings.
EACH OPENING*
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BRADFORD WHITE CORP.
rating to the room, but other heat sources may be present.
2.2 Venting
2.2.1 Vent Categories
Depending upon desired Brute Deluxe venting, it may be considered a Category I or a Category III appliance. In general, a vertical vent system will be a Category I system. However, in rare instances, a vertical vent system may be considered Category III. In the U.S., the National Fuel Gas Code (ANSI Z223.1-Latest Edition), or in Canada the CSA B149.1 (latest edition), defines a Category I vent system, and includes rules and tables to size these vent systems. If the Brute Deluxe’s vertical vent system does not satisfy the criteria for Category I venting, it must be vented as a Category III system.
All Brute Deluxe vent systems which discharge horizontally (without the use of a power venter) are considered Category III vent systems.
2.2.2 Category I Vent
When vented as a category I appliance, the vent system must conform to the National Fuel Gas Code (ANSI Z223.1-Latest Edition) in the U.S., or in Canada, to CSA B149.1 (latest edition). The vent system must be sized and installed for a Category I Fan-Assisted Appliance.
If chimney height is greater than 25 feet, or if multiple units are vented into the same vertical vent, a barometric damper must be installed on each appliance, such that the flue draft does not exceed (negative) 0.1" w.c.
If using a power venter for any type of Category I venting, the draft should be set between (negative) 0.01 and 0.10" w.c.
2.2.3 Common Venting Systems
Brute Deluxe units are Category I fan-assisted when vented vertically and adhering to all applicable codes.
When common venting Brute Deluxe fan-assisted unit with other appliances through one shared vertical duct called a “common vent”, special care must be taken by the installer to ensure safe operation. In the event that the common vent is blocked, it is possible, especially for fan-assisted devices, to vent backwards through non­operating appliances sharing the vent, allowing combustion products to infiltrate occupied spaces. If the
appliances are allowed to operate in this condition, serious injury or death may occur.
may lead to serious injury or death. If safe operation of all appliances connected to a common vent cannot be assured, including prevention of spillage of flue gasses into living spaces, common venting should not be applied, and appliances should each be vented separately.
Proper vent sizing, construction and safety requirements from the National Fuel Gas Code, ANSI Z223.1 or in Canada, from CSA B149.1 as well as all applicable local codes must be followed.
As an additional precaution, it is recommended that a Carbon Monoxide (CO) alarm be installed in all enclosed spaces containing combustion appliances.
Brute Deluxe units are not allowed to be vented into a common horizontal vent system, unless a properly sized vent fan is used, and the common vent system is properly designed by the vent fan manufacturer or a qualified engineer.
Refer to the installation and operating instructions on all appliances to be common vented for instructions, warnings, restrictions and safety requirements. If safe operation of all appliances connected to a common vent cannot be assured, including prevention of spillage of flue gasses into living spaces, common venting should not be applied, and appliances should each be vented separately.
2.2.4 Category III Vent
When the Brute Deluxe is vented with horizontal discharge, it must be installed per this installation manual and the venting system manufacturer’s installation instructions. The vent system must be sealed stainless steel (see Table 5).
Route the vent pipe to the heater as directly as possible. Seal all joints and provide adequate hangers as required in the venting system manufacturer’s Instal-
WARNING
Operation of appliances with a blocked common vent
TERM DESCRIPTION
Pipe
Joint
Sealing
Table 4. Required Combustion Air Piping Material.
Single-wall galvanized steel pipe, 24 gauge minimum (either insulated or non-insulated)
Permanent duct tape or aluminum tape
Figure 3. Combustion Air and Vent Through Roof.
Brute Deluxe (500-2000)
Page 9
lation Instructions. Horizontal portions of the venting system must be supported to prevent sagging and may not have any low sections that could trap condensate. The unit must not support the weight of the vent pipe. Horizontal runs must slope downwards not less than ¼ inch per foot (2 cm/m) from the unit to the vent terminal. Reference Table 1 for the size of the Category III vent system. Up to three elbows can be used with 50 linear feet (15.2m) of pipe. Subtract 10 allowable linear feet (3.0m) for every additional elbow used.
WARNING
The outdoor vent terminal gets hot. Unit must be installed in such a way as to reduce the risk of burns from contact with the vent terminal.
2.3 Locating Vent & Combustion Air Terminals
2.3.1 Side Wall Vent Terminal
The appropriate side wall vent hood must be used,
and is listed in the installation and operation manual. The terminal provides a means of installing the vent piping through the building wall, and must be located in accordance with ANSI Z223.1/NFPA 54 and applicable local codes. In Canada, the installation must be in accordance with CSA B149.1 or .2 and local applicable codes. Consider the following when installing the terminal:
1. Figure 4 shows the requirements for mechanical vent terminal clearances for the U.S. and Canada.
2. Vent terminals for condensing appliances or appliances with condensing vents are not permitted to terminate above a public walkway, or over an area where condensate or vapor could create a nuisance or hazard.
3. Locate the vent terminal so that vent gases cannot be drawn into air conditioning system inlets.
4. Locate the vent terminal so that vent gases cannot enter the building through doors, windows, gravity inlets or other openings. When possible, locations under windows or near doors should be avoided.
5. Locate the vent terminal so that it cannot be blocked by snow. The National Fuel gas code requires that it be at a minimum of 12" above grade. In a location that has the possibility of snow accumulation, it is critical the installer places the vent at least 12" higher than the maximum potential snow line. Seek local municipalities and their codes for appropriate installation techniques.
6. Locate the terminal so the vent exhaust does not settle
TERM DESCRIPTION
Pipe Must comply with UL Standard 1738
such as Type 29-4C Stainless Steel
(either insulated or non-insulated).
Joint Follow vent manufacturer’s instructions
Sealing
Table 5. Required Horizontal Venting Material.
on building surfaces or other nearby objects. Vent products may damage such surfaces or objects.
7. If the boiler or water heater uses ducted combustion air from an intake terminal located on the same wall, locate the vent terminal at least 3 feet (0.9m) horizontally from the combustion air terminal, and locate the vent terminal at least 1 foot (0.3m) above the combustion air terminal.
2.3.2 Side Wall Combustion Air Terminal
The side wall combustion air terminal (see Table
2) must be used when the unit takes its combustion air
through a duct from a side wall. Consider the following when installing the terminal:
1. Do not locate the air inlet terminal near a source of corrosive chemical fumes (e.g., cleaning fluid, chlorinated compounds, etc.)
2. Locate the terminal so that it will not be subject to damage by accident or vandalism.
3. Locate the combustion air terminal so that it cannot be blocked by snow. The National Fuel gas code requires that it be at a minimum of 12" above grade. Depending on local conditions, the installer should ensure that it remains at least 12" above the maximum potential snow line. Seek local municipalities and their codes for appropriate installation techniques.
WARNING: It is critical that the combustion air
intake and the vent terminals remain at least 12" above the maximum potential snow line. If either the vent terminal or the air terminal is blocked by snow, there may be potential for the unit to produce excess carbon monoxide and or recirculate flue gasses into the building/dwelling. Personal injury or DEATH may occur. Natural snowfall, drifting, and banking should all be taken into account when locating the terminals in a potential snow environment.
4. If the Brute Deluxe is side-wall vented to the same wall, locate the vent terminal at least 3 feet (0.9m) horizontally from the combustion air terminal, and locate the vent terminal at least 1 foot (0.3m) above the combustion air terminal (see Figure 4).
2.3.3 Vertical Vent Terminal
When the unit is vented through the roof, the vent
must extend at least 3 feet (0.9m) above the point at which it penetrates the roof. It must extend at least 2 feet (0.6m) higher than any portion of a building within a horizontal distance of 10 feet (3.0m), and high enough above the roof line to prevent blockage from snow. When the combustion air is taken from the roof, the combustion air must terminate at least 12" (30cm) below the vent terminal (see Figure 3). Seek local municipalities and their codes for appropriate installation techniques.
Page 10
U.S. Installations (see note 1) Canadian Installations (see note 2)
A= Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm)
deck, or balcony
B= Clearance to window or door that may be 4 feet (1.2 m) below or to side of opening; 36 inches (91 cm)
opened 1 foot (30 cm) above opening
C= Clearance to permanently closed window See note 4 See note 5
D= Vertical clearance to ventilated soffit located
above the terminal within a horizontal See note 4 See note 5 distance of 2 feet (61cm) from the center line of the terminal
E= Clearance to unventilated soffit See note 4 See note 5
F= Clearance to outside corner See note 4 See note 5
G= Clearance to inside corner See note 4 See note 5
H= Clearance to each side of center line 3 feet (91 cm) within a height 15 feet above
extended above meter/regulator assembly See note 4 the meter/regulator assembly
I= Clearance to service regulator vent outlet See note 4 3 feet (91 cm)
J= Clearance to nonmechanical air supply inlet
to building or the combustion air inlet to 4 feet (1.2 m) below or to side of opening; 36 inches (91 cm) any other appliance 1 foot (30 cm) above opening
K= Clearance to a mechanical air supply inlet 3 feet (91 cm) above if within 10 feet (3 m) 6 feet (1.83 m)
horizontally
Vent termination not allowed in this location
Vent termination not allowed in this location for category IV appliances. A vent shall not
L= Clearance above paved sidewalk or paved for category IV appliances. For Category III terminate directly above a sidewalk or paved
driveway located on public property appliances, vent must terminate at least 7 driveway that is located between two single
feet (2.13m) above the sidewalk or driveway. family dwellings and serves both dwellings.
For Category III appliances that do not violate the previous condition, vent must terminate at least 7 feet (2.13m) above the sidewalk or driveway.
M= Clearance under veranda, porch, deck, See note 4 12 inches (30 cm) (see note 3)
or balcony
Notes:
1. In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.
2. In accordance with the current CSA-B149.1 Installation Codes.
3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
4. For clearances not specified in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the requirements of the gas supplier.
5. For clearances not specified in CSA-B149.1, clearance is in accordance with local installation codes and the requirements of the gas supplier.
BRADFORD WHITE CORP.
Figure 4. Combustion Air and Vent Through Side Wall.
Brute Deluxe (500-2000)
Page 11
From Massachusetts Rules and Regulations 248 CMR 5.08:
(a) For all side wall horizontally vented gas fueled equipment
installed in every dwelling, building or structure used in whole or inpart 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 finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:
INSTALLATION OF CARBON MONOXIDE DETECTORS.
1. At the time of installation of the side wall horizontal vented gas 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 fueled equipment is installed in a crawl space or an attic, the hard­wired carbon monoxide detector with alarm and battery back­up may be installed on the next adjacent floor level. b. In the event that the requirements of this subdivision cannot 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. APPROVED CARBON MONOXIDE DETECTORS. Each
2. 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. SIGNAGE. A metal or plastic identification plate shall be
3. 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 than one-half (½) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS". INSPECTION. The state or local gas inspector of the side wall
4. 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 horizontal vented gas fueled equipment installed in a room or structure separate from the dwelling, building or structure used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT
VENTING SYSTEM PROVIDED. When the manufacturer of
Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system compo­nents with the equipment, the instructions provided by the manufacturer for installation of the equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT
VENTING SYSTEMNOT PROVIDED. When the manufacturer
of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the fuel gases, but identifies "special venting systems", the following require­ments shall be satisfied by the manufacturer:
1. The identification of each "special venting system" shall include either the listing of the website, phone number or manufacturer's address where the venting system installation instructions can be obtained; and
2. The "special venting systems" shall be Product Approved by the Board, and the instructions provided with that system shall include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for the Product
Approved side wall horizontally vented gas fueled equipment, and all the venting instructions, parts lists, and/or design instructions for the venting system shall remain with the appliance or equipment at the completion of the installation.
Manufacturers' websites where venting system installation instructions may be obtained is located on the website at:
http://www..com.
2.3.4 Vertical Combustion Air Terminal
When combustion air is taken from the roof, a field-supplied rain cap or an elbow arrangement must be used to prevent entry of rain water (see Figure 3). The opening on the end of the terminal must be at least 12" (30cm) above the point at which it penetrates the roof, and high enough above the roof line to prevent blockage from snow. When the vent terminates on the roof, the combustion air must terminate at least 12" (30cm) below the vent terminal.
2.4 Common Vent Test — Boilers
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 and other
deficiencies 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 appliance not connected to the common venting
system. Turn on any exhaust fans, such as range
hoods and bathroom exhausts, so they will operate
at maximum speed. Do not operate a summer
exhaust fan. Close fireplace dampers.
4. Place in operation the appliance being inspected.
Follow the lighting instructions. Adjust thermostat
so appliance will operate continuously.
Page 12
BRADFORD WHITE CORP.
5. Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar or pipe.
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, fireplace 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 that the installation conforms to the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Installation Codes. When resizing any portion of the common venting system, the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Part II of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Installation Codes.
2.5 Vent Terminals for Outdoor Units
For outdoor applications, the vent and combustion
air openings must be covered with proper terminals to prevent rain, snow and other objects from falling into the Brute Deluxe.
If local codes allow, outdoor installations may use
1' of appropriately sized galvanized single wall or B­Vent and a rain cap for exhaust vent termination in the default configuration (venting out of the top). Note that some local codes may require a higher vertical vent height, extending above any perimeter fencing, etc. In installations where the appearance of the vent is objectionable, the low profile vent terminals in Table 6 may be used.
Combustion air inlets consist of appropriately sized
galvanized pipe and elbows to allow the open end to face down aside the boiler. This is available as a Commercial Kit from the manufacturer.
Part numbers for the low profile terminals to cover the
vent and combustion air openings are shown in Table 6.
SECTION 3. Gas Supply and Piping
SIZE
500 20254703 D2007900
750 20254705 D2007900
1000 20254705 D2008000
1250 D2007700 D2008000
1500 D2007700 D2008000
1750 D2007800 D2008000
2000 D2007800 D2008200
Table 6. Vent Terminals for Outdoor Units.
OUTDOOR VENT
TERMINAL
OUTDOOR COMBUSTION AIR TERMINAL
3.1 Gas Supply and Piping
Gas piping should be supported by suitable
hangers or floor stands, not by the appliance.
Brute Deluxe’s gas train allows the user to pipe the gas from either the right side or the left side of the unit. As shipped, the right side of the gas train is capped off, and there is a manual valve on the left side. If desired, the manual valve on the left side of the gas train may be moved to the right side, and the cap on the right side may be moved to the left.
Review the following instructions before proceeding with the installation.
1. Verify that the appliance is fitted for the proper
type of gas by checking the rating plate. Brute
SIZE
AND
GAS TYPE 0-100' 100-200' 200-300'
500 natural 1½" 2" 2" 500 propane 1" 1½" 1½"
750 natural 2" 2" 2½" 750 propane 1½" 1½" 2"
1000 natural 2" 2½" 3" 1000 propane 1½" 2" 2½"
1250 natural 2½" 2½" 3" 1250 propane 2" 2" 2½"
1500 natural 2½" 3" 3" 1500 propane 2" 2½" 2½"
1750 natural 2½" 3" 3" 1750 propane 2" 2½" 2½"
2000 natural 3" 3" 3½" 2000 propane 2½" 2½" 3"
Metric Equivalent
SIZE
AND
GAS TYPE 0-31m 31-61m 61-91m
500 natural 3.8cm 5.1cm 5.1cm 500 propane 2.5cm 3.8cm 3.8cm
750 natural 5.1cm 5.1cm 6.4cm 750 propane 3.8cm 3.8cm 5.1cm
1000 natural 5.1cm 6.4cm 7.6cm 1000 propane 3.8cm 5.1cm 6.4cm
1250 natural 6.4cm 6.4cm 7.6cm 1250 propane 5.1cm 5.1cm 6.4cm
1500 natural 6.4cm 7.6cm 7.6cm 1500 propane 5.1cm 6.4cm 6.4cm
1750 natural 6.4cm 7.6cm 7.6cm 1750 propane 5.1cm 6.4cm 6.4cm
2000 natural 7.6cm 7.6cm 8.9cm 2000 propane 6.4cm 6.4cm 7.6cm
NOTES: 1. These figures are based on 1/2" (0.12kPa) water column
pressure drop.
2. Check supply pressure and local code requirements before proceeding with work.
3. Pipe fittings must be considered when determining gas pipe sizing.
Table 7. Gas Piping Sizes.
DISTANCE FROM GAS METER
OR LAST STAGE REGULATOR
DISTANCE FROM GAS METER
OR LAST STAGE REGULATOR
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