Bradford White RG2MH30T6X, RG2MH40T6X Installation Manual
GAS-F I RED WAT ER HEA TER
INSTALLATION & OPERAT ION M ANUAL
A Spanish language version of t hese instructions is available by
especificaciones.
cont act ing t he company list ed on the rating plat e.
La v ersión espãnola de est as instruc ciones se puede obtener al
escr i bi rl e a la fábri ca c u y o no m br e apar ec e en l a p lac a d e
For Flammable V a por Igni t ion Resist ance
Sy st em Equipped Manuf acture d Hom e
(Mobile Home) Water H eat er
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
phone in your building.
• Immediately call your gas supplier from a neighbor’s 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 the gas supplier.
For your fa mily’s comfort , saf et y and conv enienc e, it is
recommended this w at er heater be installed and serviced by a
plumbing profe ssional.
238-46877-00H REV 5/18
2
You have just purchased one of the finest water heaters on the mark et
detail the installation and maintenance of your ne w Gas Water Heater.
We strongly recomme n d th at you contact a plumbing profe ssional for
CONGRATULATIONS!
today!
This installation, operation and instruction manual will explain in
the installation of this water heater.
We require that you carefully read this manual, as well as the
enclosed warranty, and refer to it when questions arise. If you have
any specific questions concerning your warranty, please cons ult the
plumbing professional from whom your water heater was purchase d.
For your records we recommend that you write the model, serial
number and installation da te of your water heater in the maintenance
section in the back of this manual.
This manual should be kept with the water heater.
Special Flammable Vapor Ignition Resistant System:
This water heater is equipped with a Flammable Vapor Ignition Resistant System.
In the event of improper usage or storage of gasoline or other flammable materials
in the location where the water heater is installed, the technology will resist ignition
of the flammable vapors outside the confines of the water heater.
The Flammable Vapor Ignition Resistant System features:
• Advanced Flame Arrestor Design.
• Re-settable Thermal Switch to prevent burner/pilot operation with
restricted airflow.
• Piezo Igniter
• Sight Window to observe operation of pilot and burner.
FOR YOUR SAFETY: Activation of the Flammable Vapor Ignition Resistant
System occurs when flammable vapors are drawn into the water heater and are
combusted. If flammable vapors are detected:
• Do not try to light any appliance.
• Do not touch any electrical switch; Do not use any phone in your building.
• Leave the premises and immediately call the fire department from a
Once the flammable vapor has been evacuated, contact your plumbing
professional or the manufacturer for further instructions. Replacement of a
Flammable Vapor Ignition Resistant System equipped water heater due to a
flammable vapor shutdown is not covered under the terms of the limited warranty.
neighbor’s phone. Follow the fire department’s instructions.
3
TABLE OF CONTENTS
Page
GENERAL INFORMATION ........................................................... 4
INSTALLATION ............................................................................ 5
Locating The Water Heater ................................................... 5
Minimum Clearances ............................................................ 7
Venting ................................................................................... 8
Combustion Air Supply ......................................................... 9
Water Connections ................................................................ 10
Gas Connections ................................................................... 13
Gas Conversion Instructions ............................................... 14
GENERAL OPERATION ............................................................... 23
Lighting and Shutdown Inst r uct ions ................................... 24
Thermostat Adjustment ........................................................ 25
Burner Flame Check ............................................................. 27
MAINTENANCE ............................................................................ 27
TYPICAL INSTALLATION ............................................................ 30
PARTS LIST & DRAWING ........................................................... 31
NOTES ........................................................................................ 32
4
G EN ER AL I NFO R MAT IO N
This gas-f ired w at er heater is design cert if ied by t he CSA International under the
applicable A m erican National Standard, Z21 . 1 0 .1 or Z2 1 . 1 0. 3 -(as indicated on the
rating pl ate) and CSA 4.1-(as indicated on the rating plat e).
This w at er heater must be installed in accordance w ith local codes. In t he
absenc e of loc al codes, it must be inst alled in compliance wit h the National Fuel
Gas Code (ANSI Z223.1-Latest Edition), or i n C anad a CAN / CGA B149.1 N atu r al
Gas Inst allation Code (Lat est Edition) or CAN/CGA B149 . 2 Propane Installation
Cod e (Latest Edition ). T h e warran ty fo r this wat er h eater is i n effect o nl y w hen
t h e w at er h eater i s i ns tal l ed, ad j us ted , an d op er ated i n ac c or d anc e w ith th ese
Installation and Operating Inst ruct ions. The manufact urer w ill not be liable for any
damage result ing f rom alt eration and/or f ailure to com ply with these inst ruct ions.
Th is wat er heater mu st be in stalled in ac c o rd an c e with T he Feder al M an u factured
Home Construc t ion A nd Safety St andard Title 24 CRF. part 3 2 8 0 or CAN/ CSA
Z2 40 MH s eri es, m o b il e h o m e. T hi s w ater heater is d esi g n ed c er tif i ed fo r
installation in a manufact ured home (mobile home) only and must be inst alled in
an enclosure that will c om p l etel y s epar ate t he w ater heater co m b us ti o n an d
venting sy stems f rom its int erior. The w at er heater enclosure access door must
be on the out side w all of the manufact ured home (mobile home) only. Acc ess to
t h e w at er h eater en c lo su r e fr o m th e i ns id e of t he manuf act ured home (mobile
home) is not permitted.
CSA In ternati o nal h as test ed a rep r esen tative s am pl e o f this wat er h eater desi g n
f or it s safety of operation. The CSA list ing of t his wat er heater includes the f ield
installation of t he f ollowing components: roof jack and heat er tie down m aterials.
These c omponent s f or f ield installation m ay have been shipped with this heater
and must be installed according to t hese instruct ions. No ot her component s are
approved for use w it h t hi s w at er heat er.
This w at er heater has been designed and certif ied f or t he purpose of heating
potable water. The installation and use of this wat er heater f or any purpose other
t h an th e h eati n g o f potab l e wat er m ay c au se d am ag e to th e w at er h eater , c r eate a
hazardous condition, and nullify t he warranty .
CAUTION
Incorrect operation of this appliance may create a hazard to life and property
and will nullify the warranty.
WARNING
Prior to connecting the gas supply line to a gas fired water heater, ensure that
the gas supply line does not have moisture/water or dirt/scale inside the gas
line. Commonly this check is done at the lowest point in the gas distribution
system prior to gas burning appliances.
Do not use thi s appliance if any ext ernal part t o t he t ank has been submerged in
w at er. You should cont act a qualified service technician to inspect t he appliance
and to replace any part of the cont rol syst em including t he combinat ion gas cont rol
w hic h has been submerged in w at er. See the Gas Connect ions section of this
man u al b efore ser v i c in g o r r ep lac i n g a w ater h eater th at has had an y ex ternal p ar t
t o t he t ank submerged In w at er.
5
General Information continued-
WARNING
This product contains one or more chemicals known to the State of
California to cause cancer, birth defects, or reproductive harm.
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.
To comply with NSF requirements this water heater is to be:
a) Sealed to the floor with sealant, in a smooth and easily cleanable way, or
b) Installed with an optional leg kit that includes legs and/or extensions that
provide a minimum clearance of 6” beneath the water heater.
This water heater has been manufactured for operation at altitudes from sea level to
2000 feet (610m) (unless otherwise specified on the water heater). For use of this
appliance at an elevation greater than 2000 feet (610m), contact the dealer or
manufacturer listed on the rating plate for information on any necessary modification.
Uncorrected operation of this appliance may create a hazard to life and property.
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(s) is used to extend tank life. Removal of any anode, except for
inspection and/or replacement, 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 impurities in the water. If this should happen, an alternative
anode(s) 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.
Locating the W at er Heater
INSTALLATION
WARNING
Wat er heaters are heat producing appliances. To avoid damage or injury t here
shall be n o m ater i als sto r ed agai n st th e w at er h eater o r ven t-ai r i ntake sy stem
and proper care must be taken to avoid unnecessary cont act (especially by
ch i ld r en) with the water h eater an d ven t-air int ake components. UNDER NO
CIRCUMSTANCES SHALL FLAMM ABLE MATERIALS, SUCH AS GASOLINE OR
PAINT THINNER BE USED OR STORED IN THE V I CINITY OF THIS WATER
H EATER, V EN T-AIR INTAKE SYSTEM OR IN ANY LOCATION FROM W HICH
FU M ES C O ULD REACH THE W ATER HEATER O R V EN T-AIR INTAK E S YST EM .
6
Installation continued-
DO NOT install the water heater in any location where gasoline or flammable
vapors are likely to be present. This water heater MUST be installed indoors out
of the wind and weather.
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.
For exact venting specifications, please consult the Venting section, located on page
8, of these Installation and Operating Instructions.
Not e: For Calif ornia insta llat ion this wa t er hea t er must be bra ced, anc hored, or
strapped to a void f a lling or moving during an ea rt hquake . Se e inst ruct ions f or
correct inst allation proce dures. Instructions may be obtained from DSA
Headquarters Office, 1102 Q Street, Suite 5100, Sacramento, CA 95811.
WARNING
Liquefied petroleum gases/propane gas are heavier than air and will remain
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.
IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electric 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!
7
Installation continued-
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.
This water heater must be located in an area where leakage of the tank, water line
connections, or 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, suitable drain pan, adequately drained, must
be installed under the water heater. The drain pan must have a minimum length and
width of at least 4 in. (10.2 cm) greater than the diameter of the water heater and must
not restrict proper combustion air flow to 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 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
Failure to adhere to these installation and operating instructions may
create a hazard to life and property and will nullify the warranty.
This installation must allow access to the front of the water heater and adequate
clearance must 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 must be installed on top of a metal or
wood panel (or equivalent) extending beyond the full width and depth of the appliance
by at least 3 inches (7.6 cm) in any direction or, if the appliance is to be installed in an
alcove or closet, the entire floor must be covered by the panel, increase distances to
provide clearance for servicing.
WARNING
8
Installation continued-
M in im u m Clear anc es Fro m
(5.08cm)
Figure 1
Venting
Com bu sti b le Material s
A 0’’ (0 c m ) Lef t, 2’’
Right (113.6 Lit ers Only)
B 0’’ (0 c m )
C 4’’ (10.16cm)
D 78’’ (1.98m) m
VENT ----
WARNING
The vent system must be installed properly. Failure to properly install the
vent system could result in property damage, personal injury, or death.
M ak e c er tai n th e fl u e b affle is i n pl ac e an d c en tered i n flue tube. Place the draft
diverter over the flue opening at the top of the water heater by inserting the tips of the
draft diverter legs into the four (4) holes provided in the water heater top. Cut a 7 1/4
inch (18.5cm) diamet er hole in the ceiling and roof directly above t he flue of t he
water h eater . C enter t h e w at er h eater b eneath th e 7 1/4 i n c h (18.5cm) diameter
holes in the roof and ceiling for proper alignment of the draft div ert er and roof jack
vent. A pply non-hardening mastic on t he roof , around the previously cut hole, t o
f o r m a weat h er s eal w ith t h e flashi n g o f t he g as v en t roo f j ac k assem b l y . In ser t
gas vent roof jack assem bly f rom above and fasten the f lashing to the roof
t hrough t he pre-punched holes in t he f lashing. Note: Only t he roof jac ks liste d in
Figure 2 can be used on this water he at e r. A pply addit ional non-hardening mastic
t o c o m pl ete t he w eath er s eal. Sl i p the 3 i n c h (7.62cm) vent connect or extension
t hat is shipped telescoped, into t he gas vent roof jack assembly down onto t he
dr aft div er ter that i s sec u r ed to th e top of t h e wat er heater and fas ten with the
t w o ( 2 ) sh eet m etal sc rew s pr o v i d ed.
9
TYPICAL INSTALLA TION (V ENTING)
Figure 2
Combustion Air Supply
Liquefied petroleum gases/propane gases are heavier than air and will
remain 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.
IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electric 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!
The flow of combustion and ventilating air must not be obstructed.
WARNING
IMPORTANT
10
Combustion Air Supply continued All combustion air must be supplied from outdoors by one of the following
installation methods and as illustrated in Figure 2. The flow of combustion and
ventilating air must not be obstructed. Adequate air must be supplied for
combustion and ventilation. An insufficient supply of air will cause recirculation
of combustion products resulting in air contamination that may be hazardous
to life. Such a condition often will result in a yellow, luminous burner flame,
causing carboning or sooting of the combustion chamber, burners and flue
tubes with possible damage to the heater.
A minimum 34 in2 (86.4cm2) opening area is required to supply fresh air to the
water heater for combustion. Cut a 4” x 8 1/2” (10.2cm x 21.6cm) rectangular
opening in the outside access door panel with the bottom side of the opening
being 6” (15.3cm) from the bottom access door panel. A protective cover for
this fresh air opening is suggested to resist the entrance of rodents.
WARNING
Be sure protective cover still allows adequate fresh air opening area.
The water heater is to be secured in place using the supplied sheet metal
strapping and screws. Fasten the base of the water heater to the floor using
the screws provided. The perforated metal strapping must be fastened to the
top of the water heater and to the adjacent walls with the screws provided (See
Figure 2).
Water Connections
NOTE: BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE
MAIN WATER SUPPLY VALVE.
After shutting off the main water supply, open a faucet to relieve the water line
pressure to prevent any water from leaking out of the pipes while making the
water connections to the water heater. After the pressure has been relieved,
close the faucet. The COLD water inlet is identified on the side of the water
heater and HOT water outlet is identified on the top of the water heater. The
fittings at the cold water inlet and hot water outlet are dielectric waterway
fittings with 3/4” NPT male thread. Make the proper plumbing connections
between the water heater and the plumbing system to the house. Install a
shut-off valve in the cold water supply line.
CAUTION
If s weat f it t ings are to be use, DO N OT apply heat t o t he nipples on
t h e wat er heater. Sweat th e tu b in g to t h e ad apter befo r e f i tting th e
adapt er to t he wat er connections. It is imperative t hat heat is not
applied t o t he nipples cont aining a plast ic liner.
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