Lochinvar BF-GAS-I, BF DV-Gas Service Manual
INSTALLATION & SERVICE MANUAL
BF/DV-GAS-I&S
BALANCED FLUE/ DIRECT VENT
GAS WATER HEATER
WARNING:
If the information in these instructions is not followed exactly, a
fire or explosion may result causing property damage, personal
injury or death.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable, combustible, or
corrosive 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
telephone in your building.
• Immediately call your gas supplier from a neighbor’s
telephone. 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 the gas supplier.
For your family’s comfort, safety and convenience, we recommend
this water heater be installed and serviced by a plumbing
professional.
TABLE OF CONTENTS
GENERAL INFORMATION............................................................. 1
INSTALLATION......................................................................... 2
Locating The Water Heater................................................. 2
Minimum Clearances ........................................................... 2
Optional Direct Vent-Air Intake Terminal Guard ................ 3
Venting............................................................................... 3
Horizontal and Vertical Vent-Air Intake Lengths............... 4
Vent-Air Intake System Installation .................................. 6
Water Connections ............................................................. 8
Gas Connections................................................................. 9
GENERAL OPERATION................................................................. 10
Lighting and Shutdown Instructions .................................. 10
Thermostat Adjustment ...................................................... 11
Burner Flame Check............................................................. 11
MAINTENANCE ............................................................................ 11
Vent-Air Intake Kits ........................................................... 12
INSTALLATION INSTRUCTIONS FOR POTABLE WATER AND
SPACE HEATING .......................................................................... 12
GENERAL INFORMATION
This gas-fired water heater’s design is certified by CSA International under the
American National Standard Z21.10.1 - (as indicated on the rating plate) and
CSA 4.1-M - (as indicated on the rating plate).
This water heater must be installed in accordance with local codes or, in the
absence of local codes, the National Fuel Gas Code, ANSI Z223.1-Latest Edition)
and/or in Canada CAN/CGA B149 Installation Codes (Latest Editions). The
warranty for this water heater is in effect only when the water heater is
installed, adjusted, and operated in accordance with these Installation and
Operating Instructions. The manufacturer will not be held liable for any damage
resulting from alteration and/or failure to comply with these instructions.
This water heater is not design certified for installation in a mobile home. Such
an installation may create a hazardous condition and will nullify the warranty.
This water heater has been designed and certified for the purpose of heating
potable water. The installation and use of this water heater for any purpose
other than the heating of potable water may cause damage to the water heater
and create a hazardous condition and nullify the warranty.
CAUTION
Incorrect operation of this appliance may create a hazard to
life and property and will nullify the warranty.
Do not use this appliance if any part has been submerged in water. Immediately
call a qualified service technician to inspect the appliance and to replace any
part of the control system and any gas control which has been under water.
Depending upon the individual circumstances, it may be necessary to replace
the entire water heater.
DANGER
Do not store or use gasoline or other flammable, combustible,
or corrosive vapors and liquids in the vicinity of this or any
other appliance.
IMPORTANT
Before proceeding, please inspect the water heater and components for
possible damage. DO NOT install any damaged components. If damage
is evident then please contact the supplier where the water heater was
purchased or the manufacturer listed on the rating plate for replacement
parts.
Make sure that you check the rating plate and combination gas control on the
water heater to be certain that the type of gas being supplied corresponds with
the marking on the rating plate and combination gas control.
A sacrificial anode is used to extend tank life. The removal of this anode, for
any reason, will nullify the warranty. In areas where water is unusually active,
an odor may occur at the hot water faucet due to a reaction between the
sacrificial anode and the impurities in the water. If this should happen, an
alternative anode may be purchased from the supplier that installed this water
heater. This will minimize the odor while protecting the tank. Additionally, the
water heater should be flushed with appropriate dissolvers to eliminate any
bacteria.
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BF/DV-GAS-I&S
INSTALLATION
Locating The Water Heater
WARNING
Water heaters are heat producing appliances. To avoid damage or injury there
shall be no materials stored against the water heater or vent-air intake system
and proper care shall be taken to avoid unnecessary contact (especially by
children) with the water heater and vent-air intake components. UNDER NO
CIRCUMSTANCES SHALL FLAMMABLE MATERIALS, SUCH AS
GASOLINE OR PAINT THINNER BE USED OR STORED IN THE
VICINITY OF THIS WATER HEATER, VENT-AIR INTAKE SYSTEM OR IN
ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER
HEATER OR VENT-AIR INTAKE SYSTEM.
DO NOT install the water heater in any location where gasoline or
flammable vapors are likely to be present.
Water Heaters in residential garages shall be installed so that all
burner(s) and burner ignition device(s) are located not less than 18
inches (46 cm) above the floor and shall be located, or protected, to
avoid physical damage. For other installations refer to local codes.
In the absence of local codes, the water heater shall be installed in
compliance with the National Fuel Gas Code, ANSI Z223.1 - (Latest
Edition) and/or in Canada, CAN/CGA B149 Installation Codes
(Latest Editions).
The location of this water heater is of the utmost importance. Before installing
this water heater, read the installation section of these instructions. After
reading these installation and operating instructions, select a location for the
water heater where the floor is level and is easily accessible to gas and water
supply lines. DO NOT locate the water heater where water lines could
be subjected to freezing temperatures. Make sure the cold water
pipes are not located directly above the gas control so that
condensate during humid weather does not drip on the controls.
Water heater corrosion and component failure can be caused by the heating
and breakdown of airborne chemical vapors. Examples of some typical
compounds that are potentially corrosive are: spray can propellants, cleaning
solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals,
calcium and sodium chloride, waxes and process chemicals. These materials
are corrosive at very low concentration levels with little or no odor to reveal
their presence. NOTE: DAMAGE TO THE WATER HEATER CAUSED BY
EXPOSURE TO CORROSIVE VAPORS IS NOT COVERED BY THE
WARRANTY. DO NOT OPERATE THE WATER HEATER IF EXPOSURE
HAS OR WILL OCCUR. DO NOT STORE ANY POTENTIALLY
CORROSIVE COMPOUNDS IN THE VICINITY OF THE WATER HEATER.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
telephone in your building.
• Immediately call your gas supplier from a neighbor’s
telephone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!
WARNING
DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE
NOT CERTAIN OF THE FOLLOWING:
• Liquefied petroleum gases/propane gas and natural gas have an
odorant added by the gas supplier that aids in detection of the gas.
• Most people recognize this odor as a “sulfur” or “rotten egg” smell.
• Other conditions, such as “odorant fade” can cause the odorant to
diminish in intensity, or “fade”, and not be as readily detectable.
• If you have a diminished sense of smell, or are in any way unsure of
the presence of gas, immediately contact your gas supplier from a
neighbor’s telephone.
• Gas detectors are available. Contact your gas supplier or plumbing
professional for more information.
The water heater must be located close enough to the outside wall to keep the
venting distance within the maximum distance described in the installation
instructions. Note: The direct vent-air intake terminal must be installed on a
vertical wall. Read the venting section in this installation instruction manual
before locating the water heater.
This water heater must be located in an area where leakage of the tank or
water line connections and the combination temperature and pressure relief
valve will not result in damage to the area adjacent to the water heater or to
lower floors of the structure. When such locations cannot be avoided, a suitable
drain pan, adequately drained, be installed under the water heater. The pan
must not restrict combustion air flow. The drain pan must be no greater than
1-1/2 inches (3.8 cm) deep and have a minimum length and width of at least
four (4) inches (10.2 cm) measured from the jacket of the water heater. The
drain pan, as described above, can be purchased from your plumbing professional.
The drain pan must be piped to an adequate drain. The piping must be at least
3/4 inch (1.9 cm) in diameter and pitched for proper drainage.
It is recommended that a minimum clearance of four (4) inches (10.2 cm) be
provided on the side of the water heater for servicing and maintenance of the
combination temperature and pressure relief valve.
MINIMUM CLEARANCES
Liquefied petroleum gases/propane gas are heavier than air and will remain
WARNING
at floor level if there is a leak. Basements, crawl spaces, closets and areas
below ground level will serve as pockets for accumulation of leaking gas.
Before lighting, smell all around the appliance area for gas.
Be sure to smell next to the floor.
WARNING
Failure to adhere to these installation and operating instructions
may create a hazard to life and property and will nullify the
warranty.
This installation shall allow access to the front of the water heater and adequate
clearance shall be provided for servicing and operating this water heater. The
water heater may be installed on either a combustible or non-combustible floor.
If the water heater is to be installed directly on carpeting, it shall be installed on
top of a metal or wood panel extending beyond the full width and depth of the
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appliance by at least three (3) inches (76.2 mm) in any direction or, if the
appliance is to be installed in an alcove or closet, the entire floor shall be
covered by the panel. The minimum clearances to combustibles for this water
heater is: zero (0) inch (0 cm) from the sides and rear, four (4) inches (10.2
cm) from the front of the jacket, zero (0) inch (0 cm) from the plenum, zero
(0) inch (0 cm) from the air intake elbow and telescopic tubes and twelve (12)
inches (30.5 cm) from the direct vent-air intake terminal. (See Figure 1).
OPTIONAL DIRECT VENT-AIR INTAKE TERMINAL GUARD
WARNING
The direct vent-air intake terminal is HOT while the water heater
is in operation. Do not touch. Keep children, combustibles,
gasoline and other liquids having flammable vapors away.
BF/DV-GAS-I&S
Figure 3
It is recommended that a vent-air intake terminal guard be installed when the
vent-air intake terminal is located where it can be touched accidentally, or
accessed by children. (See Figure 2).
A chain link or louvered fence may be used instead of the vent-air intake
terminal guard. Maintain proper clearances as specified in this instruction
manual to the vent-air intake terminal. (See Figure 3).
Figure 1
Figure 2
VENTING
This is a Direct Vent Gas Water Heater where all air for combustion is obtained
from the outside atmosphere and all flue gases are discharged to the outside
atmosphere.
Direct Vent-Air Intake Terminal (See Figure 4)
• Shall terminate at least 3 ft. (91.4 cm) above any forced air inlet
located within 10 ft. (3.1 m).
• Shall be installed with at least a 9 in. (22.9 cm) vent termination
clearance from any air opening into a building.
• The bottom of the direct vent-air intake terminal shall be located at
least 12 in. (30.5 cm) above grade.
• Installed at least 3 ft. (91.4 cm) from any gas meter, gas valve or
other gas regulating equipment.
• Shall be installed in a location where it will not be blocked by snow.
Note: Provide protection of the building materials from degradation by flue
gases from the direct vent-air intake terminal.
Exceptions for Installations in Canada
The direct vent-air intake terminal shall not terminate:
(a) directly above a paved sidewalk or paved driveway which is located
between two single-family dwellings and serves both dwellings;
(b) less than 7 ft. (2.1 m) above a paved sidewalk or a paved driveway
located on public property;
(c) within 6 ft. (1.8 m) of a mechanical air supply inlet to any building;
(d) above a gas meter/regulator assembly within 3 ft (91.4 cm)
horizontally of the vertical centerline of the regulator;
(e) within 6 ft. (1.8 m) of any gas service regulator vent outlet;
(f) less than 12 in. (30.5 cm) above grade level;
(g) within 12 in. (30.5 cm) of a window or door which can be opened in any
building, any non-mechanical air supply inlet to any building or the
combustion air inlet of any other appliance:
(h) underneath a verandah, porch or deck, unless:
(i) the verandah, porch or deck is fully open on a minimum of two (2)
sides beneath the floor, and
(ii) the distance between the top of the vent-air intake termination
and the underside of the verandah, porch or deck is greater than
12 in. (30.5 cm).
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BF/DV-GAS-I&S
Figure 5Figure 4
The co-axial vent-air intake tubes of this water heater can be installed in any
360° configuration as long as the proper clearances for installation, plumbing,
operation and servicing are maintained. (See Figure 5).
Note:
Maintain proper clearances for installation, plumbing, operation and service.
HORIZONTAL AND VERTICAL VENT-AIR INTAKE LENGTHS
This Direct Vent Gas Water Heater comes one (1) vent-air intake “Kit C”. Optional vent-air intake kits are available that can extend the horizontal length and/
or vertical height of the vent-air intake system. Table A lists the various vertical and horizontal vent-air intake system configurations.
The water heater is shipped with the following standard vent and air intake system:
3" Vent Tube *Vent Terminal Hardware
5" Air Intake Tube *RTV Silicone Sealant Vent Terminal
3" Vent Elbow Inner Wall Term. Mounting Flange
5" Vent Elbow Outer Wall Term. Mounting Flange
* The vent and air intake telescopes from 13 3/4" to 23 11/16".
Table - A
Vertical Extensions For Vent-Air Intake System 40 Gallon (151.4 Liter) Models
Vertical Height “Y” (See Figure 6) Vent-Air Intake Kit Part Nos. & Quantity Required
Min. Max. Min. Max. Elbow Set Kit A Kit B Kit C
(in.) (in.) (cm) (cm) (Supplied with Part No. Part No. Part No Part No. Part No.
Water Heater) DRH1148 DRH1160 DRH1150 DRH1149 DRH1145
63 ¼ 160.7 (1)
68 69 ½ 172.7 176.5 (1) (1)
69 ½ 73 176.5 185.4 (1) (1)
73 75 ¾ 185.4 192.4 (1) (2)
74 ¾ 79 ¼ 189.9 201.3 (1) (1) (1)
79 ¼ 87 ½ 201.3 222.3 (1) (1)
84 ¼ 93 ¾ 241 238.1 (1) (1) (1)
86 97 ¼ 218.4 247 (1) (1) (1)
91 103 ½ 231.1 262.9 (1) (1) (1) (1)
95 ½ 111 ¾ 242.6 283.8 (1) (2)
100 ½ 118 255.3 299.7 (1) (1) (2)
115 ½ 159 ½ 293.4 405.1 (1) (1)
115 ½ 159 ½ 293.4 405.1 (1) (1)
Note: The maximum vertical height “Y” for the 40 gallon (151.4 Liter model is 159 ½ in. (405.1 cm).
One (1) vent-air intake “Kit C” is included with the water heater. For additiolnal vent-air intake kits, contact the supplier or manufacturer of the water heater.
1
Kit D Kit E
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