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367AAN
User Manual
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Bryant 367AAN User Manual

installation, start-up, and operating instructions
LOW-BOY OIL FURNACE
NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since last issue.
INDEX
Page
SAFETY CONSIDERATIONS..................................................1-3
Dimensional Drawing...............................................................2
Minimum Clearance to Combustibles......................................3
INTRODUCTION..........................................................................2
LOCATION....................................................................................3
Location Relative to Cooling Equipment ................................3
AIR FOR COMBUSTION AND VENTILATION...................3-5
DUCT WORK RECOMMENDATIONS......................................5
VENTING ......................................................................................5
Vent System Inspection............................................................5
Factory-Built Chimneys............................................................5
OIL BURNER................................................................................5
OIL CONNECTIONS....................................................................6
BAROMETRIC DRAFT CONTROL ...........................................6
ELECTRICAL CONNECTIONS............................................6-7-8
Wiring Diagram.................................................................... 7-8
FILTERS ........................................................................................6
START-UP, ADJUSTMENT, AND SAFETY CHECK......6-9-10
Operational Checkout ...............................................................6
Fan Adjustment Check .............................................................9
Limit Control Check...............................................................10
For Year-Round Air Conditioning.........................................10
Heating....................................................................................10
Cooling....................................................................................10
Constant Blower Switch.........................................................10
MAINTENANCE.........................................................................10
Heat Exchanger and Flue Pipe..........................................10-11
367AAN
Series A
Cancels: II 367A-105-1 II 367A-105-2
1-98
A96280
Fig. 1—367AAN Low-Boy Oil Furnace
SAFETY CONSIDERATIONS
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQ­UIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
DO NOT ATTEMPT TO START THE BURNER WHEN EXCESS OIL HAS ACCUMULATED, WHEN THE FURNACE IS FULL OF VAPOR, OR WHEN THE COMBUSTION CHAMBER IS VERY HOT.
WARNING: For use with grade 1 or 2 Fuel Oil. Do not use Gasoline, Crankcase Oil, or any Oil containing Gasoline! Failure to follow this warning could lead to sooting, fire, explosion, and/or severe bodily harm.
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CAUTION: Never burn garbage or paper in the heating system and never leave rags, paper, or any flammable items around the unit.
20"20"20"
B
VENT  CONN
21 1⁄4″
10"
3"
D
C
A
E
→DIMENSIONS (IN.)
UNIT
SIZE
036105 21-1/4 53-3/4 31-1/2 26-1/2 20 20 5 060120 21-1/4 60-5/32 34-3/4 28-11/32 22 24 6
Width Depth Height
UNIT DIMENSIONS
AB C D E
FLUE
HEIGHT
RETURN
OPENING
SUPPLY
OPENING
VENT
CONN
Fig. 2—Dimensional Drawing
A98009
CAUTION: These instructions are intended to be used
by qualified personnel who have been trained in installing
this type of furnace. Installation of this furnace by an
unqualified person may lead to equipment damage and/or
a hazardous condition which may lead to bodily harm.
All local and national code requirements governing installation of oil burning equipment, wiring, and flue connections must be followed. Some of the codes (issued by the Canadian Standards Association, the National Fire Protection Agency, and/or the American National Standards Institute) that may be applicable are:
ANSI/NFPA 31 INSTALLATION OF OIL BURNING
EQUIPMENT
ANSI/NFPA 211 CHIMNEYS, FIREPLACES, VENTS,
AND SOLID FUEL BURNING APPLIANCES
ANSI/NFPA 90B WARM AIR HEATING AND AIR
CONDITIONING SYSTEMS ANSI/NFPA 70 NATIONAL ELECTRICAL CODE CSA B139 INSTALLATION CODE FOR
OIL BURNING EQUIPMENT CSA C22.1 CANADIAN ELECTRICAL CODE
Only the latest issues of these codes should be used, and are available from either The National Fire Protection Agency, Bat­terymarch Park, Quincy, MA 02269 or The Canadian Standards Association, 178 Rexdale Blvd., Rexdale, Ontario M9W 1R3
Recognize safety information. This is the safety-alert symbol When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and CAU­TION. These words are used with the safety-alert symbol. DAN­GER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage.
INTRODUCTION
→
The model 367AAN Furnaces are available in 2 sizes. Each size unit can be fired at 3 different rates by a simple nozzle change. Unit 036105 covers input ranges from 91,000 to 105,000 Btuh, unit 060120 covers input ranges from 119,000 to 154,000 Btuh.
This furnace is a Low-Boy unit. It may be operated only in the upflow configuration.
The furnace is shipped as a packaged unit, complete with burner and controls. It requires a line voltage (115 vac) connection to control box, a thermostat hook-up as shown on wiring diagram, oil line connection(s), adequate duct work, and connection to a properly sized vent.
.
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→TABLE 1—MINIMUM CLEARANCES TO
COMBUSTIBLE MATERIALS (IN.)
UNIT APPLICATION LOW-BOY
Furnace 1
Sides
Supply Plenum and Warm-Air Duct Within 6 ft of Furnace
Back Service Clearance 19
Furnace Casing or Plenum 2
Top
Horizontal Warm-Air Duct Within 6 ft of Furnace
Bottom* 0
Horizontally or Below Pipe 4
Flue Pipe
Vertically Above Pipe 9
Front 8
* Floor may be combustible. NOTE: Adequate service clearance should be provided over and above these
dimensions as required.
1
2
The air handling capacity of this furnace is designed for cooling airflow. Refer to Table 7 for expected airflows at various external duct static pressures.
LOCATION
I. GENERAL
WARNING: This furnace is not water tight and is not
designed for outdoor installation. This furnace shall be installed in such a manner as to protect electrical com­ponents from water. Outdoor installation would lead to a hazardous electrical condition and to premature furnace failure.
WARNING: Do not use this furnace as a construction heater. Use of this furnace as a construction heater exposes furnace to abnormal conditions, contaminated combustion air, and lack of air filters. Failure to follow this warning can lead to premature furnace failure and/or vent failure which could result in a fire hazard and/or bodily harm.
This furnace is approved for reduced clearances to combustible construction, therefore, it may be installed in a closet or similar enclosure. It may be located in a basement or on the same level as area to be heated. In any case, unit should always be installed level.
The required minimum clearances for this furnace are specified in Table 1.
The furnace should be located as close as possible to chimney or vent in order to keep vent connections short and direct. The furnace should also be located as near as possible to center of air distribution system.
II. LOCATION RELATIVE TO COOLING EQUIPMENT
When installing furnace with cooling equipment for year-round operation, the following recommendations must be followed for series or parallel airflow:
1. In series airflow applications, coil is mounted after furnace in an enclosure in supply-air stream. The furnace blower is used for both heating and cooling airflow.
WARNING: The coil MUST be installed on air dis­charge side of furnace. Under no circumstances should airflow be such that cooled, conditioned air can pass over furnace heat exchanger. This will cause condensation in heat exchanger and possible failure of heat exchanger which could lead to a fire hazard and/or a hazardous condition which may lead to bodily harm. Heat exchanger failure due to improper installation may not be covered by warranty.
2. In parallel airflow applications, dampers must be provided to direct air over furnace heat exchanger when heat is desired and over cooling coil when cooling is desired.
IMPORTANT: The dampers should be adequate to prevent cooled air from entering furnace. If manually operated, dampers must be equipped with a means to prevent operation of either cooling unit or furnace unless damper is in full cool or heat position.
AIR FOR COMBUSTION AND VENTILATION
WARNING: Installation of this furnace in an area where
it will receive contaminated combustion air must be avoided. Such contamination would include the follow­ing: ammonia, chlorine, hydrogen sulfide, halogenated hydrocarbons, carbon tetrachloride, cleaning solvents, hydrochloric acid, water softening chemicals, and similar chemicals. Failure to follow this warning will lead to premature rusting of heat exchanger and possible prema­ture furnace failure and/or vent failure which could result in fire hazard and/or bodily harm.
WARNING: Do not block combustion-air openings in the furnace. Any blockage will result in improper com­bustion which may result in a fire hazard and/or cause bodily harm.
I. GENERAL
This furnace should be installed in a location in which facilities for ventilation permit satisfactory combustion of oil, proper venting, and maintenance of ambient temperature at safe limits under normal conditions of use. The location should not interfere with proper circulation of air within the confined space. (See NFPA-31, Section 1.5.)
In addition to air needed for combustion, process air shall be provided as required for: cooling of equipment or material, controlling dew point, heating, drying, oxidation or dilution, safety exhaust, and odor control.
In addition to air needed for combustion, air shall be supplied for ventilation, including all air required for comfort and proper working conditions for personnel.
The barometric draft regulator (included with furnace) shall be installed in same room or enclosure as furnace in such a manner as to prevent any difference in pressure between regulator and combustion-air supply.
Air requirements for operation of exhaust fans, kitchen ventilation systems, clothes dryers, and fireplaces shall be considered in determining the adequacy of a space to provide combustion-air requirements.
The lack of a proper amount of combustion air can lead to serious furnace operational problems. Some of these problems are:
1. Excessive oil burner after drip and oil fumes.
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2. Sooting.
3. Melted oil burner couplings and/or ignitor/relay control.
4. Air band or air shutter settings more open than normal.
5. Lockouts on start-up.
The requirements for combustion and ventilation air depend upon whether the furnace is located in a CONFINED or UNCONFINED space.
II. UNCONFINED SPACE
An unconfined space must have at least 50 cu ft for each 1000 Btuh of total input for all the appliances (such as furnaces, clothes dryers, water heaters, etc.) in the space.
For Example:
→MINIMUM FLOOR AREA FOR UNCONFINED SPACE
367AAN FURNACE
INPUT BTUH
70,000 467
91,000 607 105,000 700 119,000 793 140,000 933 154,000 1026
MINIMUM SQ FT WITH
7-1/2 FT CEILING
In unconfined spaces in buildings of conventional frame, brick, or stone construction, infiltration MAY be adequate to provide air for combustion, ventilation, and dilution of flue gases. This determi­nation must be made on an individual installation basis and must take into consideration the overall volume of unconfined space, the number of windows and ventilation openings, the number of doors to the outside, internal doors which can close off unconfined space, and overall tightness of building construction. Consideration must also be given to the amount of storage items (furniture, boxes, etc.) within the unconfined space which take away from the air volume.
Many new buildings and homes (and older ones that have been weatherized) MUST BE considered as being of tight construction, therefore, infiltration will not be sufficient to supply necessary air for combustion and ventilation.
A building can be considered as being of tight construction when:
1. Walls and ceilings exposed to outside atmosphere have a continuous water vapor retarder with a rating of 1 perm or less with openings gasketed or sealed, and/or
2. Weatherstripping has been added on operable windows and doors, and/or
3. Caulking or sealants are applied to areas such as joints around window and door frames; between sole plates and floors; between wall-ceiling joints; between wall panels; at penetrations for plumbing, electrical, and fuel lines; and at other openings.
If combustion and ventilation air must be supplied to an uncon­fined space from outside, an opening with a FREE AREA of not less than 1 sq in. per 1000 Btuh of total input of all appliances within unconfined space (but not less than 100 sq in.) must be provided. This opening must be located such that it can not be blocked at any time.
III. CONFINED SPACE
A confined space has a volume of less than 50 cu ft per 1000 Btuh of the total input rating for all appliances installed in that space.
When furnace is installed in a closet or enclosure, 2 ventilation openings, with OPEN AREA as dimensioned in example below are required for combustion air. The openings should be located about 6 in. from top and bottom of enclosure at front of furnace.
For Example:
→
367AAN FURNACE
INPUT BTUH
70,000-105,000 16 8
119,000-154,000 20 10
LENGTH
(IN.)
HEIGHT
(IN.)
NOTE: In calculating free area, consideration shall be given to
blocking effect of louvers, grilles, or screens protecting openings. Screens used shall not be smaller than 1/4 in. mesh and shall be readily accessible for cleaning. If free area through a design of louver or grille is known, it shall be used in calculating size design and free area specified. If design and free area are not known, it may be assumed that wood louvers have 20 percent free area and metal louvers and grilles have 60 percent free area. Louvers shall be fixed in open position or interlocked with furnace so they open automatically at furnace start-up and remain open during furnace operation.
The size of the openings depends upon whether the air comes from outside of the structure or an unconfined space inside the structure.
A. All Air from Inside the Structure
For a confined space, where air is taken from an interior space, 2 permanent openings of equal area are required. One opening must be within 12 in. of ceiling and the other within 12 in. of floor. Each opening must have a free area of at least 1 sq in. per 1000 Btuh of total input rating but not less than 100 sq in.
For Example:
→COMBUSTION AIR FROM UNCONFINED SPACE
367AAN FURNACE
INPUT BTUH
70,000 100
91,000 100 105,000 105 119,000 119 140,000 140 154,000 154
FREE AREA PER
OPENING
(SQ IN.)
B. All Air from Outside of Structure
If outside air is supplied to a confined space, then the 2 openings must be equal and located as above.
1. If combustion air is taken through a permanent opening directly communicating with the outdoors, the opening shall have a minimum free area of 1 sq in. per 4000 Btuh of total input rating for all equipment in the enclosure.
2. If combustion air is taken from outdoors through vertical ducts, the openings and ducts MUST have at least 1 sq in. of free area per 4000 Btuh of the total input for all equipment within the confined space.
For Example:
→COMBUSTION AIR FROM OUTDOORS THROUGH
VERTICAL DUCTS
367AAN FURNACE
INPUT BTUH
70,000 17.5 5
91,000 22.8 6 105,000 26.3 6 119,000 29.8 6 140,000 35.0 6 154,000 38.5 6
FREE AREA PER
OPENING
(SQ IN.)
ROUND PIPE
(IN. DIAM)
3. If combustion air is taken from outdoors through horizontal ducts, the openings and ducts MUST have at least 1 sq in. of free area per 2000 Btuh of the total input for all equipment within the confined space.
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