How it Works
Bryant
Loading...
349HAV060125

Bryant 349HAV Series, 349HAV036050, 349HAV036075, 349HAV048075, 349HAV048100 Installation, Start-up, And Operating Instructions Manual

...
installation, start-up, and operating instructions
HORIZONTAL INDUCED-COMBUSTION GAS FURNACE SIZES 050—125, SERIES B
NOTE: Read the entire instruction manual before starting the installation.
This symbol → indicates a change since the last issue.
INDEX
Page
SAFETY CONSIDERATIONS ................................................1-2
Clearances From Combustible Materials.................................1
INTRODUCTION.......................................................................2-3
Dimensional Drawing...............................................................2
General......................................................................................3
Furnace Location Relative to Cooling Equipment..................3
Hazardous Locations.................................................................3
AIR FOR COMBUSTION AND VENTILATION...................3-5
General...................................................................................3-4
Unconfined Space.....................................................................4
Confined Space......................................................................4-5
Contaminated Combustion Air.................................................5
INSTALLATION........................................................................5-9
Duct Work Recommendations..................................................5
Horizontal Attic Installation.....................................................6
Horizontal Crawlspace Installation ..........................................6
Filter Arrangement....................................................................6
Gas Piping..............................................................................6-7
Reversing Procedure..............................................................7-9
ELECTRICAL CONNECTIONS.............................................9-11
115-v Wiring........................................................................9-11
Wiring Diagram......................................................................10
24-v Wiring.............................................................................11
Accessories..............................................................................11
General Venting Requirements.........................................11-12
Pre-Installation Vent System Inspection................................12
Removal of Existing Furnace from Common
Venting System..................................................................12
Metal Vent Installations..........................................................12
Masonry Chimney Installations..............................................12
Multistory Installations...........................................................12
Sidewall Venting Installations................................................12
SEQUENCE OF OPERATION...................................................13
Heating Mode..........................................................................13
Cooling Mode .........................................................................13
START-UP, ADJUSTMENT, AND SAFETY CHECK.......13-18
General....................................................................................13
Remove Shipping Bracket......................................................13
Purge Gas Lines......................................................................13
Operational Checkout .............................................................13
Adjustments .......................................................................14-17
Adjust Pilot Flame..................................................................14
Set Gas Input Rate ............................................................14-17
Set Temperature Rise..............................................................17
Set Blower Off Delay.............................................................17
Set Thermostat Heat Anticipator............................................17
Check Safety Controls.......................................................17-18
349HAV
Cancels: II 349H-50-4 II 349H-50-5
®
SAFETY CONSIDERATIONS
Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified person­nel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags, and on labels attached to or shipped with the unit and other safety precautions that may apply.
TABLE 1—ATTIC, CLOSET*, OR ALCOVE CLEARANCES
FROM COMBUSTIBLE MATERIALS (IN.)
UNIT SIZE 050, 075, 100, & 125
Sides 6 Back 6 Top of Plenum 2 Vent Connector 6 Front Casing 6† Front Service 30
* For closet installations, refer to Air for Combustion and Ventilation section. † Measured from end of inducer motor.
WARNING: Failure to comply with all of the above clearances will create a fire hazard.
→
Follow all safety codes. In the United States, follow all safety codes including the National Fuel Gas Code (NFGC) NFPA No. 54-1996/ANSI Z223.1-1996 and the Installation Standards, Warm Air Heating and Air Conditioning Systems (NFPA 90B) ANSI/NFPA 90B. In Canada, refer to the current edition of the National Standard of Canada CAN/CGA-B149.1- and .2-M95 Natural Gas and Propane Installation Codes (NSCNGPIC). Wear safety glasses and work gloves. Have fire extinguisher available during start-up and adjustment procedures and service calls.
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.
ama
CANADIAN GAS ASSOCIATION
APPROVED
R
6-98
.
—1—
These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances, these instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residen­tial construction practices. We require these instructions as a minimum for a safe installation.
INTRODUCTION
The design of the 349HAV Horizontal Induced-Combustion Gas Furnace is A.G.A./C.G.A. certified as a Category I furnace for natural and propane gases and for installation in alcoves, base­ments, crawlspaces, utility rooms, and attics. The design of the horizontal gas-fired furnace is A.G.A./C.G.A. certified for instal­lation on noncombustible floors. This furnace may be installed on combustible wood flooring, however, it may not be installed directly on carpeting, tile, or other combustible material other than wood. The design of this furnace line is not A.G.A. certified for installation in recreational vehicles, manufactured housing (mobile homes), or outdoors. The furnace is shipped as a packaged unit, complete with burners and controls, and requires a 115-v line voltage connection to junction box, a thermostat hook-up as shown in the wiring diagram, and a gas line connection. The furnace is shipped in the horizontal left configuration (for right-to-left airflow) but is easily converted to the horizontal right configuration (for left-to-right airflow). Refer to Reversing Procedure section for details. The furnace is designed to interface with split system cooling equipment (approved by UL) to provide year-round air condition­ing. The blower is sized for both heating and cooling, and the furnace control includes a cooling fan relay.
Before installing the furnace, refer to the current edition of the NFGC and the NFPA 90B. Canadian installations must be installed in accordance NSCNGPIC and all authorities having jurisdiction. For a copy of the NFGC NFPA54/Z223.1, contact International Approval Services U.S. Inc., 8501 E. Pleasant Valley Road, Cleveland, OH 44131 or National Fire Protection Association Inc., Batterymarch Park, Quincy, MA 02269. For a copy of NFPA 90B, contact National Fire Protection Association Inc., Batterymarch Park, Quincy, MA 02269.
Before installing furnace in Canada, refer to the current edition of the NSCNGPIC. Contact Standards Department of Canadian Gas Association, 55 Scarsdale Road, Don Mills, Ontario, Canada M3B 2R3. Canadian installations must be made in accordance with CAN/CGA-B149 Installation Codes and authorities having juris­diction.
→
Installations must comply with the regulations of the serving gas supplier and the local building, heating, plumbing, or other codes in effect in the area in which the installation is made. In the absence of local codes, the installation must conform with the NFGC, NFPA No. 54-1996/ANSI Z223.1-1996.
CAUTION: Application of this furnace should be in­doors with special attention given to vent sizing and material, gas input rate, air temperature rise, and unit sizing. Improper installation or misapplication of the furnace can require excessive servicing or cause prema­ture component failure.
(EXTEND BLOWER DOOR)
5
⁄8″
D ( NUMBER OF CELLS)
3 1⁄2″
1 3⁄4″
T-STAT
CONNECTION
1
⁄2-IN. GAS CONNECTION
A
19 1⁄2″
5
⁄16″
B
7
5 5⁄8″
(HIGH AIR FLOW UNITS ONLY)
2 1⁄2″
10″
⁄8″
26 5⁄8″
19 1⁄4″
7″
(2 PLACES)
7
⁄8-IN. ELECTRICAL
CONNECTION
28 7⁄8″
50″
C
4-IN. DIA VENT CONNECTION
18″
5
4 9⁄16″
6 5⁄16″
4 1⁄8″
⁄8″
1 7⁄8″
5
⁄16″
B
21 3⁄8″
23 1⁄8″
7
⁄8″
A
AIR FLOW
5 7⁄8″
DIMENSIONS (IN.)
UNIT DIMENSIONS
UNIT SIZE
Length
036050 50 13-1/2 23-1/8 11-5/8 21-3/8 Flush 2 112 036075 50 13-1/2 23-1/8 11-5/8 21-3/8 Flush 3 121 048075 50 13-1/2 23-1/8 11-5/8 21-3/8 1 3 125 048100 50 17 23-1/8 15-1/8 21-3/8 Flush 4 141 060100 50 17 23-1/8 15-1/8 21-3/8 1 4 149 060125 50 20-1/2 23-1/8 18-5/8 21-3/8 Flush 5 161
* High airflow units only.
Width
A
Height
DUCT SUPPLY
AND RETURN
OPENINGS
Width
B
Height C D
EXTENDED
BLOWER
DOOR*
NUMBER OF HEAT
EXCHANGERS
Fig. 1—Dimensional Drawing
A96068
NET
WEIGHT
(LB)
—2—
This furnace is designed for a minimum continuous return-air temperature of 60°F db or intermittent operation down to 55°F db such as when used with a night setback thermostat. Return-air temperature must not exceed a maximum of 85°F db.
WARNING: Improper installation, adjustment, alter-
ation, service, maintenance, or use can cause carbon
monoxide poisoning, explosion, fire, electrical shock, or
other conditions which may cause personal injury or
property damage. Consult a qualified installer, service
agency, local gas supplier, your distributor, or your
branch for information or assistance. The qualified in-
staller or agency must use only factory-authorized and
listed kits or accessories when modifying this product.
Failure to follow this warning could result in electrical
shock, fire, personal injury, or death.
Locate furnace where available electrical and gas supplies meet the specifications on furnace rating plate.
Line contact is only permissible between lines formed by the intersection of furnace top and front and back sides and building joists, studs, or framing. (See Fig. 2.)
ROOF
LINE CONTACT ONLY PERMISSIBLE BETWEEN TOP CORNERS OF FURNACE AND BUILDING JOISTS, STUDS, OR FRAMING.
For accessory installation details, refer to the applicable installa­tion literature. NOTE: Remove all shipping brackets and materials before oper­ating furnace.
LOCATION
I. GENERAL
CAUTION: Do not install furnace in a corrosive or
contaminated atmosphere. Make sure all combustion and
circulating air requirements are followed, in addition to
all local codes and ordinances.
Do not use this furnace during construction when adhe-
sives, sealers, and/or new carpets are being installed. If
the furnace is required during construction, use clean
outside air for combustion and ventilation. Compounds of
chlorine and fluorine when burned with combustion air
form acids which cause corrosion of the heat exchangers
and metal vent system. Some of these compounds are
found in paneling and dry wall adhesives, paints, thin-
ners, masonry cleaning materials, and many other sol-
vents commonly used in the construction process. Exces-
sive exposure to contaminated combustion air will result
in safety and performance related problems.
This furnace may be located in an attic, basement, crawlspace, alcove, or suspended from the ceiling of a utility room or basement.
WARNING: Do not install the furnace on its back or
side. Safety control operation will be adversely affected.
Never connect return-air ducts to the back of the furnace.
Failure to follow this warning could result in a fire,
personal injury, or death.
KEEP ALL INSULATING MATERIAL CLEAR OF FURNACE. INSULATING MATERIAL MAY BE COMBUSTIBLE.
A96069
Fig. 2—Attic Installation Showing Point Contact
For attic installations, the passageway and servicing area adjacent to furnace should be floored.
If furnace is to be installed in a crawlspace, consult local codes. Use of a concrete pad 1 to 2 in. thick is recommended.
II. FURNACE LOCATION RELATIVE TO COOLING EQUIPMENT
The cooling coil must be installed parallel with or on the downstream side of the furnace to avoid condensation in the heat exchanger. When installed parallel with a furnace, dampers or other means used to control the flow of air must prevent chilled air from entering the furnace. If the dampers are manually operated, they must be equipped with a means to prevent operation of either unit unless the damper is in the full-heat or full-cool position.
III. HAZARDOUS LOCATIONS
When furnace is installed in a residential garage, it must be installed so that the burners and ignition source are located a minimum of 18 in. above the floor. Furnace must be located or protected to avoid physical damage by vehicles.
When furnace is installed in a public garage, airplane hangar, or another building having a hazardous atmosphere, the unit must be installed in accordance with the requirements of the National Fire Protection Association, Inc.
WARNING: Do not place combustible material on fur­nace jacket. Failure to comply with this warning will cause an explosion.
When a furnace is installed so that the supply ducts carry air to areas outside the space containing the furnace, return air must also be handled by duct(s) sealed to furnace casing and terminating outside the space containing furnace to ensure there will not be a negative pressure condition within the equipment room or space. This furnace must be located so electrical components are pro­tected from water. Locate furnace close to the chimney/vent and as near the center of air distribution system as possible. The furnace should not be connected to an operating chimney that also serves a solid fuel burning appliance. Provide ample space for servicing and cleaning. Always comply with the minimum fire protection clearances shown on the unit rating plate and in Table 1. A clurance of at least 30 in. should be provided at front of unit for servicing.
WARNING: This furnace is not watertight and is not designed for outdoor installation. This furnace shall be installed in such a manner as to protect the electrical components from water. Outdoor installation would lead to a hazardous electrical condition and premature com­ponent failure.
AIR FOR COMBUSTION AND VENTILATION
I. GENERAL
Provisions for adequate combustion and ventilation air must be provided in accordance with Section 5.3, Air for Combustion and Ventilation, of the NFGC, or applicable provisions of local building codes.
—3—
Canadian installations must be installed in accordance with the NSCNGPIC and all authorities having jurisdiction.
WARNING: Do not block combustion air openings in furnace. Any blockage will result in improper combustion and may result in a fire hazard or unsafe condition.
CAUTION: Air for combustion must not be contami­nated by halogen compounds which include fluoride, chloride, bromide, and iodide. These elements are found in aerosol sprays, detergents, bleaches, cleaning solvents, salts, air fresheners, and other household products. Excessive exposure to contaminated combustion air will result in safety and performance related problems.
CAUTION: The operation of exhaust fans, kitchen ven­tilation fans, clothes dryers, or fireplaces could create a negative pressure condition at the furnace. Make-up air must be provided for the ventilation devices, in addition to that required by the furnace.
The furnace shall be installed in a location in which the facilities for ventilation permit satisfactory combustion of gas, proper venting, and maintenance of ambient temperature at safe limits under normal conditions of use. The furnace shall be located so as not to interfere with proper circulation of air.
In addition to air needed for combustion, process air must be provided as required for cooling of equipment or material, con­trolling dew point, heating, drying, oxidation or dilution, safety exhaust, and odor control. Air must be supplied for ventilation, including all air required for comfort and proper working condi­tions for personnel.
CAUTION: Whenever this furnace is installed in an area along with 1 or more gas appliances, the total Btuh input of all appliances must be included when determining the free area requirements for combustion and ventilation openings.
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 input for all appliances such as furnaces, clothes dryer, water heaters, etc. in that space. Rooms communicating with the space in which the appliances are installed through openings not furnished with doors are considered a part of the unconfined space.
If the unconfined space is of unusually tight construction, air for combustion and ventilation MUST come from either the outdoors or spaces freely communicating with the outdoors. Combustion and ventilation openings must be sized the same as for a confined
space. A minimum opening with a total of at least 1 sq in. per 5000 Btuh of total input rating for all equipment must be provided. Return air must not be taken from the room unless an equal or greater amount of air is supplied to the room.
III. CONFINED SPACE
A confined space has less than 50 cu ft for each 1000 Btuh of the total input ratings of all appliances installed in that space.
A confined space MUST have 2 permanent openings, 1 within 12 in. of the ceiling and the other within 12 in. of the floor.
NOTE: In determining the free area of an opening, the blocking effect of the louvers, grilles, and screens must be considered. If the free area of a louver or grille design is unknown, assume that wood louvers have a 20 percent free area and metal louvers or grilles have a 60 percent free area. Screens, when used, must not be smaller than 1/4-in. mesh. Louvers and grilles must be constructed so they cannot be closed.
A. All Air from Inside the Structure:
1. Each opening MUST have at least 1 sq in. of free area per 1000 Btuh of the total input for all equipment within the confined space, but not less than 100 sq in. per opening.
For Example:
349HAV FURNACE
INPUT BTUH
50,000 100
75,000 100 100,000 100 125,000 125
FREE AREA PER
OPENING (SQ IN.)
2. If the building is of unusually tight construction, in addition to the 2 permanent openings that freely communicate with an unconfined space, a permanent opening directly commu­nicating with the outdoors should be provided. This opening should have a minimum free area of 1 sq in. per 5000 Btuh of total input rating for all equipment in the enclosure.
3. If the furnace is installed on a raised platform to provide a return-air plenum, and return air is taken directly from the hallway or space adjacent to the furnace, all air for combustion must come from outdoors.
B. All Air from Outdoors:
1. 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:
349HAV FURNACE
INPUT BTUH
50,000 12.5 4
75,000 18.8 5 100,000 25.0 6 125,000 31.3 7
FREE AREA PER
OPENING (SQ IN.)
ROUND PIPE
(IN. DIA)
2. If combustion air is taken from the 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.
—4—
For Example:
349HAV FURNACE
INPUT BTUH
50,000 25.0 6
75,000 37.5 7 100,000 50.0 8 125,000 62.5 9
FREE AREA PER
OPENING (SQ IN.)
ROUND PIPE
(IN. DIA)
When ducts are used, they must be of the same cross-sectional area as the free area of the openings to which they connect. The minimum dimension of rectangular ducts must not be less than 3 in.
IV. CONTAMINATED COMBUSTION AIR
Contaminated combustion air must be avoided in order not to adversely affect the long term life of furnace, especially heat exchanger and burners.
The recommended source of combustion air is to use the outdoor air supply. Use of indoor air in most applications is acceptable as long as there is no exposure to the types of installation or substances listed below and all provisions for indoor combustion air meet the requirements for combustion air supply indicated in the NFGC Section 5.3; CAN1-B149 Installation Codes; and/or any applicable local codes.
A. Installations Requiring Outdoor Combustion Air
1. The following types of installations require OUTDOOR AIR for combustion due to chemical exposures:
a. Commercial buildings b. Buildings with indoor pools c. Furnaces installed in laundry rooms d. Furnaces installed in hobby or craft rooms e. Furnaces installed near chemical storage areas
2. Exposure to the following substances in the combustion air supply also require OUTDOOR AIR for combustion:
a. Permanent wave solutions b. Chlorinated waxes or cleaners c. Chlorine based swimming pool chemicals d. Water softening chemicals e. De-icing salts or chemicals f. Carbon tetrachloride g. Halogen-type refrigerants h. Cleaning solvents (such as perchloroethylene) i. Printing inks, paint removers, varnishes, etc. j. Hydrochloric acid k. Cements and glues l. Anti-static fabric softeners for clothes dryers m. Masonry acid washing materials
The following recommendations should be followed when install­ing duct work:
1. Install locking type dampers in all branches of individual ducts to balance out system. Dampers should be adjusted to impose proper static at outlet of furnace.
2. Noncombustible flexible duct connectors are recommended to connect both supply- and return-air ducts to furnace.
3. In cases where return-air grille is located close to fan inlet, there should be at least one 90° air turn between fan and inlet grille. Further reduction in sound can be accomplished by installing acoustical air turning vanes and/or lining inside of duct with acoustical material.
4. It is recommended that outlet duct be provided with a removable access panel. The opening shall be accessible when furnace is installed and shall be of such a size that heat exchanger can be viewed for possible openings using light assistance or so a probe can be inserted for sampling air stream. The access panel shall be designed so as to prevent leaks when locked in position. If an air conditioning coil is installed, access panel to coil can be used for this purpose.
CAUTION: Air openings, intake and outlet pipes, return-air grilles, and warm air registers must not be obstructed.
WARNING: When supply ducts carry air circulated by furnace to areas outside spaces containing furnace, return air shall also be handled by a duct sealed to furnace casing and terminating outside space containing furnace. Incorrect duct work termination and sealing will create a hazardous condition which could lead to bodily harm.
5. When installing furnace with cooling equipment for year­round operation, the following recommendations must be followed for series or parallel airflow:
a. 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.
INSTALLATION I. DUCT WORK RECOMMENDATIONS IMPORTANT: This furnace is equipped with a metal heat
exchanger shipping bracket which must be removed before install­ing furnace. The No. 10 screws which fasten bracket to furnace will interfere with attachment of outlet duct if not removed. Remove bracket by removing No. 10 screws located on bottom panel duct supply flange, rotating bracket forward and lifting out.
The proper sizing of warm air ducts is necessary to ensure satisfactory furnace operation. Duct work should be in accordance with the latest editions of U.S. NFPA-90A (Air Conditioning Systems) and NFPA-90B (Warm Air Heating and Air Condition­ing Systems) or Canadian equivalent.
b. In parallel airflow installation, dampers must be pro-
vided 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 means to prevent operation of either cooling unit or furnace unless damper is in full cool or full heat position.
—5—
SHEET
30-IN. MIN WORK AREA
METAL
Fig. 3—Typical Attic Installation
24″
24″
A96070
II. HORIZONTAL ATTIC INSTALLATION
The furnace can be installed horizontally for either left- or right-side supply. See Fig. 3 for a typical attic installation and Reversing Procedure section for reversing airflow direction.
CAUTION: In attic installations, it is necessary to keep insulation at least 12 in. away from any furnace opening. Some types of insulating materials are combustible.
1. Construct a working platform on location where all required furnace clearances are met. (See Table 1 and Fig. 3.)
2. Position furnace in desired location.
3. Connect gas supply pipe. See Fig. 4 for typical gas piping.
4. Connect supply- and return-air ducts.
5. Install 24- X 24-in. sheet metal shield on platform in front of controls as shown in Fig. 3.
III. HORIZONTAL CRAWLSPACE INSTALLATION
The furnace can be installed horizontally for either left- or right-side supply. In a crawlspace, the furnace can either be hung from floor joists or installed on suitable blocks or a pad. The furnace can be suspended using steel pipe straps around each end of furnace. These straps should be attached to furnace with sheet metal screws and to floor joists with lag bolts. A framed assembly of angle iron suspended with all-thread rod of suitable diameter may be used to support the length of furnace. Refer to Fig. 1 for size and weight of furnace. Care must be taken to allow for blower door access.
The horizontal crawlspace installation is very similar to the attic. Refer to Horizontal Attic Installation section, items 2, 3, 4, and 5. A 24- X 24-in. sheet metal shield must be installed above the controls for crawlspace installations. Extend sheet metal shield over furnace top far enough to cover gas pipe entry hole.
IV. FILTER ARRANGEMENT
CAUTION: Never operate the unit without a filter or
with the filter removed. Failure to follow this caution can result in a fire, personal injury, or death.
A factory-supplied filter and wire filter retainer are shipped with furnace. After return-air duct has been connected to furnace, install filter in blower compartment, just ahead of return-air plenum, and secure it with wire filter retainer. The cross-mesh binding side of filter should face blower. Refer to Table 2 for filter sizes.
TABLE 2—FILTER SIZE (IN.)
UNIT SIZE FILTER SIZE
036050 13X23 036075 13X23 048075 13X23 048100 16-1/2 X 23 060100 16-1/2 X 23 060125 20X23
V. GAS PIPING
Gas piping must be installed in accordance with national and local codes. Refer to the current edition of the NFGC.
Canadian installations must be installed in accordance with the NSCNGPIC and all authorities having jurisdiction.
Gas piping shall be of such size and so installed as to provide a supply of gas sufficient to meet maximum demands without undue loss of pressure between gas meter and furnace. It is recommended that the gas supply line be a separate line running directly from meter to furnace, unless existing gas line is of ample capacity. Refer to Table 3 for recommended gas pipe sizing. Risers must be used to connect to furnace and to meter.
Support all piping with appropriate straps, hangers, etc. Use a minimum of 1 hanger every 72 in.
Joint compounds (pipe dope) should be applied sparingly and only to male threads of joints. This pipe dope must be resistant to the action of propane gas.
—6—
Loading...
+ 14 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use