Do not operate this equipment unless you have
read and understood the contents of this manual!
Failureto follow the instructionscontained in this
manual may result in serious injury or death. This
manual contains important safety information
concerning the maintenance, use, and operation
of this product. If you’re unable to understand the
contents of this manual, please bring it to the
attention of your supervisor. Keep this manual in
a safe location for future reference.
No opere este equipo al menos que haya leído y
comprendido el contenido de este manual!
Cualquier falla en el seguimiento de las
instrucciones contenidas en este manual puede
resultar en un serio lesión o muerte. Este manual
contieneimportante información sobre seguridad
concerniente al mantenimiento, uso y operación
de este producto. Si usted no puede entender el
contenido de este manual por favor pregunte a
su supervisor. Almacenar este manual en una
localización segura para la referencia futura.
CONTENTS
NOTICE
CAUTION
WARNING
Important Owner Information ...............................................i
Electrical — All Sizes and Voltages ...............................11
IMPORTANT OWNER INFORMATION
Record the model number, serial number, voltage, and
purchase date of the unit in the spaces below (specification
label located on the unit). Please have this information available
when calling Bradford White for service assistance.
Additional information can be found by visiting our web site at
www.bradfordwhite.com.
AM to 7:00 PM EST
800.538.2020 — Service Parts
800.531.2111 — Warranty Service
Voltage ______________________________________
Date of Purchase ______________________________
INTRODUCTION
The Bradford White Magnum Series Commercial Electric
Booster water heater is designed for use with commercial
dishwashers to boost the temperature of the regularly available
hot water, usually 110°–150°F (43°–66°C) up to 180°F (82°C).
Water at 180°F (82°C) can be used as sanitizing rinse water in
commercial dishwashers in accordance with Health Codes,
NSF Standard #5 and plumbing codes.
Bradford White Commercial Electric Booster water heaters are
ready for electrical and plumbing service connections, with a
pre-set ambient compensated immersion thermostat and a high
temperature limit switch. The service area is accessible from
the front of the unit, permitting easy installation.
Bradford White Commercial Electric Booster water heaters are
products of extensive research and field testing. The materials
used were selected for maximum durability, attractive
appearance, and optimum performance. Every unit is inspected
and tested thoroughly prior to shipment.
This manual provides the installation, safety, and operating
instructions for Bradford White Commercial Electric Booster
water heaters. Bradford White recommends all installation,
operating, and safety instructions appearing in this manual be
read prior to installation or operation of the unit.
Safety information that appears in this manual is identified by
the following signal word panels:
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE is used to address practices not related to
personal injury.
i
Form No. EBOOSTERBWM-1009
IMPORTANT SAFETY INFORMATION
WARNING
WARNING
Read the following important safety information before using this equipment to avoid serious injury or death
and to avoid damage to equipment or property.
ELECTRIC SHOCK HAZARD:
• This unit must be installed by qualified, trained
installers. Installation must conform to all local
electrical and plumbing codes. Check with your local
plumbing andelectrical inspectors for proper
procedures and codes.
• Turn power OFF at disconnect switch/circuit breaker
and allow unit to cool before performing any
maintenance or cleaning.
• Consult a licensed electrical contractor for proper
electrical installation conforming to local electrical
codes and the National Electrical Code (N.E.C.).
• Unit is not weatherproof. Locate unit indoors where
ambient air temperature is a minimum of 70°F (21°C).
• Do not place aftermarket covers on or over booster
water heater. Doing so can cause temperature and
moisture build-up resulting in premature failure and
electrical shock.
• This unit must be serviced by qualified personnel only.
Service by unqualified personnel may lead to electric
shock or burn.
• Use only Genuine Bradford White Replacement Parts
whenserviceisrequired.Failuretouse GenuineBradford
WhiteReplacementPartswillvoidallwarrantiesand may
subject operators of the equipment to hazardous
electrical voltage, resulting in electrical shock or burn.
GenuineBradfordWhiteReplacementPartsarespecified
to operate safely in the environments in which they are
used.Some aftermarket or genericreplacement parts do
nothavethecharacteristicsthatwillallowthemtooperate
safely in BradfordWhite equipment.
EXPLOSION HAZARD: Do not store or use gasoline or
other flammable vapors or liquids in the vicinity of this or
any other appliance.
Bradford White has always endorsed the use of safety
equipment when using an booster water heater or storagetype water heater. Bradford White booster water heaters
are shipped with a temperature/pressure relief valve at no
extra charge. This valve must be installed into the marked
opening provided in the tank. Valves supplied with this
booster water heater are designed for high temperature
commercial operation. Do not substitute these valves with
valves designed for domestic water heaters.
Temperature/pressure protective equipment should not be
less than a combination temperature/pressure relief valve
certified by a nationally recognized testing laboratory that
maintains periodic inspection of the production of this
equipment and meets the requirements for Relief Valves
and Automatic Shutoff Devices for Hot Water Supply
Systems, ANSI Z21.22-1979. The temperature/pressure
relief valve must be marked with a minimum set pressure
not to exceed the marked hydrostatic test pressure of the
booster heater as noted on the unit specifications.
Do not connect an expansion tank of any type to booster
water heater lines.
FORINSTALLINGCOMBINATIONTEMPERATURE/
PRESSURE RELIEF VALVES IN ACCORDANCE WITH
AMERICAN NATIONAL STD. Z21.22-1979. Combination
temperature/pressure relief valves with extension
thermostats must be installed so that the temperaturesensing element is immersed in the water within the top 6"
(152 mm) of the tank. They must be installed either in the
hot outlet service line or directly in a tank tapping.
Combination temperature/pressure relief valves that do
not have extension elements must be mounted directly in
a tank tapping located within the top 6" (152 mm) of the
tank, and shall be adequately insulated and located so as
to assure isolation from the flue gas heat or other ambient
conditions that are not indicative of stored water
temperature. TO AVOID WATER DAMAGE OR SCALDING
DUE TO VALVE OPERATION, DRAIN PIPE MUST BE
CONNECTED TO VALVE OUTLET AND RUN TO A SAFE
PLACE OF DISPOSAL. Discharge line must be as short as
possible and be the same size as the valve discharge
connection throughout its entire length. Drain line must
pitch downward from the valve and must terminate
between 1-1/2" (38 mm) and 6" (152 mm) above the floor
drain where any discharge will be clearly visible. The drain
line shall terminate plain, not threaded, with material
serviceable for temperatures up to 250°F (121°C) or
greater. Excessive length, over 30' (9144 mm), or use of
more than four elbows can cause a restriction and reduce
the discharge capacity of the valve. No shut-off valve shall
be installed between the relief valve and tank, or in the
drain line. Valve lever must be tripped periodically to
assure that waterways are clear.This device is designated
for emergency safety relief and shall not be used as an
operating control. The valves are set to relieve at 150 psi
(1034 kPa) or when water temperature reaches 210°F
(99°C). Read tag on valve for additional information.
Inspect combination temperature/pressure relief valve at
least once every two to four years, depending on local
water conditions. Contact a licensed plumber or qualified
service technician for inspection. Replace valve, if
necessary. DO NOT attempt to self-inspect valve.
Use only plumbing material suitable for a minimum water
temperature of 200°F (93°C). Materials used must meet
National Sanitation Foundation (NSF) specifications and
all local plumbing codes and regulations.
Install booster water heater in horizontal position with
base parallel to the floor and inlet connection at the lowest
point. If installing with legs, mount on floor. If installing
with slide brackets, mount under dish table. DO NOT
mount on walls or in ceiling. Unit must be accessible for
service. Improper installation could create an unsafe
condition.
Valves supplied with this booster water heater are
designed for high temperature commercial operation. Do
not substitute these valves with valves designed for
domestic water heaters.
Form No. EBOOSTERBWM-1009
1
IMPORTANT SAFETY INFORMATION
WARNING
CAUTION
CAUTION
NOTICE
Read the following important safety information before using this equipment to avoid serious injury or death
and to avoid damage to equipment or property.
Units are equipped with a high temperature limit safety
switch that will shut off power if the unit overheats.
Contact an Authorized Service Agent if high temperature
limit safety switch cannot be reset or continues to trip.
Install booster water heater as close as possible to the
commercial dish machine. Employ recirculation if
distance between booster and commercial dish machine
exceedsNationalSanitationFoundation(NSF)
specifications of five (5) linear feet (1524 mm).
Make sure the dish table is strong enough to support the
weight of the booster heater and water when installing
with slide mounting brackets.
Followstandardweldingsafetyandoperational
procedures when attaching sliderails to bottom of dish
table.
This product contains fiberglass, a product known to the
state of California to cause cancer, birth defects or other
reproductive harm.
It is essential to recognize that even though a booster
water heater may be installed properly and approved
initially, there always exists the possibility that unknowing
individuals might alter or change the installation in a
manner that would render it unsafe. Therefore, it is
important that all safety programs provide some
mechanism to assure that these installations are
inspected periodically.
This unit has no “user-serviceable” parts. If service is
required on this unit, contact an Authorized Service Agent
or the Bradford White Service Department.
BURN HAZARD:
• Water in unit is very hot. Wear protective gloves and
proper attire when operating to avoid injury.
• Some exterior surfaces on unit will get hot. Avoid
unnecessary contact with unit.
• Valves supplied with this booster water heater are
designed for high temperature commercial operation.
Do not substitute these valves with valves designed for
domestic water heaters.
Do not use anti-siphon or check valves on incoming water
line.
Do not connect booster water heater directly to a boiler or
furnace coil or any other uncontrolled temperature
source. The booster heater thermostat could be damaged
causing unit to overheat.
Do not connect booster water heater to domestic
(consumer) dishwashers or other domestic utilized
equipment. Hot water from booster heater may damage
domestic equipment resulting in a hazardous condition.
Do not store any materials or items on or against the
housing of the booster water heater.
Bradford White requires that two temperature/pressure
gauges be installed to assure proper operation. Install one
in the supply line before the pressure reducing valve and
one in the outlet line as close to the booster water heater
as possible. This provides a visual check of the water
temperature and pressure before and after the water
heater.
If water supply pressure to the booster water heater inlet
is over 20 psi (138 kPa) during flow, install a commercialgrade pressure reducing valve with built-in bypass for
proper operation of dish machine rinse nozzles.
NOTE: The pressure reducing valve must be the type
equipped with a high pressure bypass, like the valve
supplied with this booster water heater.
DO NOT turn on power to the booster water heater until
tank has been filled with water and all air has been vented
through dish machine rinse nozzle. The heating elements
will burn out in seconds if operated when they are not
immersed in water.
ALWAYS drain booster water heater with power to the unit
off or element burnout could occur.
Use dielectric couplings when connecting dissimilar
metals, such as galvanized to copper. This will prevent
electrolysis or premature plumbing damage.
DO NOT turn or adjust inlet water connection on Magnum
Series booster water heaters. Doing so will change the
internal water flow.
Do not back out or loosen any pipe fittings. Doing so may
cause leaks.
Do not lay unit on the side with the control panel. Damage
to the unit could occur.
Incoming water in excess of 3 grains of hardness per
gallon (GPG) (0.75 grains of hardness per liter [GPL]) must
be treated and softened before being supplied to booster
heater(s). Water containing over 3 GPG (0.75 GPL) will
decrease efficiency, increase energy use, and reduce the
operating life of the unit through increased lime build-up.
Product failure caused by liming or sediment buildup is
not covered under warranty.
Do not use deionized or reverse osmosis (R.O.) treated
water in booster water heaters. Damage to booster heater
may occur.
Connect electric booster water heater to the same power
supply as indicated on the specification decal only.
Connecting unit to an incorrect power supply voids the
product warranty and will damage the equipment.
2
Form No. EBOOSTERBWM-1009
MagnumSeries CommercialElectric Booster
The Magnum Series Commercial Electric Booster water heater
includes a booster heater with low-water cut-off system,
temperature/pressure relief valve, pressure reducing valve with
built-in high pressure bypass, two temperature/pressure gauges
and a high temperature limit safety switch.
Magnum Series models feature a Castone
limited warranty, an ON/OFF switch, an indicator light and either
6" (152 mm) legs or slide mounting brackets for mounting under
a dish table. Magnum Series units have a capacity of 6 gallons
(23 liters) and provide up to 573 gph (2169 lph) of sanitizing
rinse water based on a 40°F (22°C) temperature rise.
®
tank with a 5 year
Dimensions — Magnum Series 6 to 18 kW
MODEL DESCRIPTION
Figure 1. Magnum Series Commercial Electric Booster
SPECIFICATIONS
Dimensions — Magnum Series 24 to 57 kW
Form No. EBOOSTERBWM-1009
3
SPECIFICATIONS
Circuit Breaker and Fused Disconnect Switch Sizes — 6 to 30 kW
Wire size is based on THHN wire for branch circuit protection at .91 derate factor. Circuit breakers and fused disconnects are to
be mounted remote and wired by contractor. Sizes are based on the 2002 NEC table 310-16. Conduit size based on conductors
plus ground wire sizing per Table C1 from Appendix C.
Only 6 and 9 kW models can be field converted to single- or three-phase (open delta on 3-phase). Check wiring diagram supplied
with the unit when converting the phase of a unit. Larger branch circuit required than for balanced 3-phase of equal kW. Balanced
3-phase available, consult factory.
NOTE: 250 kcmil maximum wire size for terminal block.
WARNING! Consult a licensed electrical contractor for proper electrical installation conforming to local electrical codes
and the National Electrical Code (N.E.C.).
4
Form No. EBOOSTERBWM-1009
SPECIFICATIONS
Circuit Breaker and Fused Disconnect Switch Sizes — 36 to 57 kW
Wire size is based on THHN wire for branch circuit protection at .91 derate factor. Circuit breakers and fused disconnects are to
be mounted remote and wired by contractor. Sizes are based on the 2002 NEC table 310-16. Conduit size based on conductors
plus ground wire sizing per Table C1 from Appendix C.
NOTE: 250 kcmil maximum wire size for terminal block.
WARNING! Consult a licensed electrical contractor for proper electrical installation conforming to local electrical codes
and the National Electrical Code (N.E.C.).
Fasten slide brackets
to booster water heater
sides.
General
For the most effective operation, install the booster water heater
as close as possible to the commercial dish machine. The
location must have a solid foundation or strong table/counter
construction along with being clean and dry. Adequate front
clearance is required to allow for accessibility to the control
compartment. Location must have adequate clearance to allow
for inspection, testing, or replacement of temperature/pressure
relief valve.
ELECTRIC SHOCK HAZARD:
• This unit must be installed by qualified, trained
installers. Installation must conform to all local
electrical and plumbing codes. Check with your local
plumbing andelectrical inspectors for proper
procedures and codes.
• Consult a licensed electrical contractor for proper
electrical installation conforming to local electrical
codes and the National Electrical Code (N.E.C.).
• Unit is not weatherproof. Locate unit indoors where
ambient air temperature is a minimum of 70°F (21°C).
• Do not place aftermarket covers on or over booster
water heater. Doing so can cause temperature and
moisture build-up resulting in premature failure and
electrical shock.
Figure 2. Installing the Legs
NOTE: If unit is not level, use an adjustable open-end wrench
to adjust the foot of each leg until unit is level. Each leg
is adjustable from 6″ (152 mm) to 7″ (178 mm).
5. If installing the unit with mounting brackets, use the
following procedure:
Make sure the dish table is strong enough to support the
weight of the booster heater and water when installing
with slide mounting brackets.
Followstandardweldingsafetyandoperational
procedures when attaching sliderails to bottom of dish
table.
• Space slide rails as shown below, and weld the rails to
the bottom of the dish table.
Install booster water heater as close as possible to the
commercial dishwasher. Employ recirculation if distance
between booster and commercial dishwasher exceeds
National Sanitation Foundation (NSF) specifications of
five (5) linear feet (1524 mm).
Install booster water heater in horizontal position with
base parallel to the floor and inlet connection at the lowest
point. If installing with legs, mount on floor. If installing
with slide brackets, mount under dish table. DO NOT
mount on walls or in ceiling. Unit must be accessible for
service. Improper installation could create an unsafe
condition.
Booster Heaters are shipped with most components preassembled. Care should be taken when unpacking shipping
carton to avoid damage to unit and components enclosed.
Components are shipped with the heater unit (see Figure 4).
1. Remove the unit from the carton.
2. Remove the information packet.
3. Remove tape and protective packaging from all surfaces
of unit.
4. If the unit is equipped with legs, carefully lay the unit on its
side and install the four legs as shown in Figure 2.
Do not lay unit on the side with the control panel. Damage
to the unit could occur.
Figure 3. Attaching the Slide Rails to the Dish Table
• Using the Bradford White slide brackets as a template,
drill 1/8″ (3 mm) holes into the sides of the heater jacket.
• Attach slide brackets
to the sides of the
booster water heater
with 3/4 x 8 sheet
metalscrews
supplied.
• Slide the booster
water heater onto
slide rails under dish
table.
6
Form No. EBOOSTERBWM-1009
INSTALLATION
Legs
Plastic Leg
Stainless Steel Leg
Mounting Brackets with Hardware
A set of mounting brackets or a set of legs are supplied with
each booster water heater.
Pressure Reducing Valve
One pressure reducing valve with built-in bypass supplied
with all booster water heaters.
Shock Absorber
An optional
heaters.
shock absorber is available for all booster water
Temperature/Pressure Gauge
Two temperature/pressure gauges are supplied with all
booster water heaters.
Temperature/Pressure Relief Valve
One temperature/pressure relief valve supplied with all
booster heaters.
Blended Phosphate Water Treatment System
An optional
available for all booster water heaters.
blended phosphate water treatment system is
Back Pressure Relief Valve
An optional
booster water heaters.
back pressure relief valve is available for all
Figure 4. Components Shipped with the Magnum Series Commercial Electric Booster
Form No. EBOOSTERBWM-1009
7
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