Troubleshooting guide | Bradford-White Corp 07.05.228.00 Water Heater User Manual

MAGNUM Series
Commercial Electric Booster
Installation and Operating Manual
I&W #07.05.228.00
Do not operate this equipment unless you have
read and understood the contents of this manual!
Failure to follow the instructions contained 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
contiene importante 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
Operation .............................................................................12
General ..........................................................................12
Maintenance ........................................................................13
General ..........................................................................13
Thermostat Adjustment..................................................13
Temperature/Pressure Relief Valve ...............................13
High Temperature Limit Safety Switch...........................14
Blended Phosphate Water
Treatment System (optional).......................................14
Troubleshooting Guide ......................................................14
Accessories.........................................................................17
Wiring Diagrams .................................................................18
Limited Warranty.................................................................24
Important Owner Information ...............................................i
Introduction ............................................................................i
Important Safety Information...............................................1
Model Description.................................................................3
Magnum Series Commercial Electric Booster .................3
Specifications........................................................................3
Dimensions ......................................................................3
Circuit Breaker and Fused Disconnect Switch Sizes.......4
Capacity...........................................................................5
Installation .............................................................................6
General ............................................................................6
Temperature/Pressure Relief Valves ...............................8
Pressure Reducing Valve ................................................8
Temperature/Pressure Gauges .......................................8
Blended Phosphate Water
Treatment System (optional).........................................8
Plumbing Connections.....................................................9
Electrical — All Sizes and Voltages ...............................11
IMPORTANT OWNER INFORMATION
Business Hours: 8:00
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.
Telephone:
Model No. ____________________________________
AM
to 7:00
PM
EST
800.334.3393 — Technical Service
800.538.2020 — Service Parts
800.531.2111 — Warranty Service
Additional information can be found by visiting our web site at
www.bradfordwhite.com.
Serial No. ____________________________________
Voltage ______________________________________
Date of Purchase ______________________________
INTRODUCTION
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.
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.
Safety information that appears in this manual is identified by
the following signal word panels:
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.
WARNING
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
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.
CAUTION
CAUTION indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE
NOTICE is used to address practices not related to
personal injury.
i
Form No. EBOOSTERBWM-1009
IMPORTANT SAFETY INFORMATION
Read the following important safety information before using this equipment to avoid serious injury or death
and to avoid damage to equipment or property.
WARNING
WARNING
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 and electrical inspectors for proper
procedures and codes.
FOR INSTALLING COMBINATION TEMPERATURE/
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.
• 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
when service is required. Failure to use Genuine Bradford
White Replacement Parts will void all warranties and may
subject operators of the equipment to hazardous
electrical voltage, resulting in electrical shock or burn.
Genuine Bradford White Replacement Parts are specified
to operate safely in the environments in which they are
used. Some aftermarket or generic replacement parts do
not have the characteristics that will allow them to operate
safely in Bradford White equipment.
EXPLOSION HAZARD: Do not store or use gasoline or
other flammable vapors or liquids in the vicinity of this or
any other appliance.
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.
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.
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.
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.
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 connect an expansion tank of any type to booster
water heater lines.
Form No. EBOOSTERBWM-1009
1
IMPORTANT SAFETY INFORMATION
Read the following important safety information before using this equipment to avoid serious injury or death
and to avoid damage to equipment or property.
WARNING
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.
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.
Install booster water heater as close as possible to the
commercial dish machine. Employ recirculation if
distance between booster and commercial dish machine
exceeds National Sanitation Foundation (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.
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.
Follow standard welding safety and operational
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.
NOTICE
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.
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.
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.
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.
DO NOT turn or adjust inlet water connection on Magnum
Series booster water heaters. Doing so will change the
internal water flow.
CAUTION
BURN HAZARD:
• Water in unit is very hot. Wear protective gloves and
proper attire when operating to avoid injury.
Do not back out or loosen any pipe fittings. Doing so may
cause leaks.
• Some exterior surfaces on unit will get hot. Avoid
unnecessary contact with unit.
Do not lay unit on the side with the control panel. Damage
to the unit could occur.
• 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.
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 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 use deionized or reverse osmosis (R.O.) treated
water in booster water heaters. Damage to booster heater
may occur.
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.
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.
CAUTION
2
Form No. EBOOSTERBWM-1009
MODEL DESCRIPTION
Magnum Series Commercial Electric 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® tank with a 5 year
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.
Figure 1. Magnum Series Commercial Electric Booster
SPECIFICATIONS
Dimensions — Magnum Series 6 to 18 kW
Dimensions — Magnum Series 24 to 57 kW
Form No. EBOOSTERBWM-1009
3
SPECIFICATIONS
Circuit Breaker and Fused Disconnect Switch Sizes — 6 to 30 kW
Model
LI663CFC
LI663CFD
LI663CFE
LI663CFF
LI663CFM
LI693CFC
LI693CFD
LI693CFE
LI693CFF
LI693CFM
LI6123CFC
LI6123CFD
LI6123CFE
LI6123CFF
LI6123CFM
LI6153CFC
LI6153CFD
LI6153CFE
LI6153CFF
LI6153CFM
LI6183CFC
LI6183CFE
LI6183CFF
LI6183CFM
LI6243CFC
LI6243CFD
LI6243CFE
LI6243CFF
LI6243CFM
LI6303CFC
LI6303CFD
LI6303CFE
LI6303CFF
LI6303CFM
kW
6
6
6
6
6
9
9
9
9
9
12
12
12
12
12
15
15
15
15
15
18
18
18
18
24
24
24
24
24
30
30
30
30
30
Volts
208
208
240
240
480
208
208
240
240
480
208
208
240
240
480
208
208
240
240
480
208
240
240
480
208
208
240
240
480
208
208
240
240
480
Phase
1
3
1
3
3
1
3
1
3
3
1
3
1
3
3
1
3
1
3
3
1
1
3
3
1
3
1
3
3
1
3
1
3
3
Amp Draw
Breaker or
Copper
Conduit
Size
L1
L2
L3
Fuse Size
Wire Size
43
22
38
19
9
43
38
38
33
16
22
19
9
60
50
50
50
20
6
8
8
8
12
29
14
25
13
6
58
33
50
29
14.5
72
41.7
62.5
36.1
18.1
86.5
75
43.4
21.7
115.4
66.7
100
57.8
29.9
144
83.3
125
72.3
36
29
25
25
22
11
14
13
6
58
33
50
29
14.5
33
29
14.5
72
41.7
62.5
36.1
18.1
41.7
36.1
18.1
86.5
75
43.4
21.7
43.4
21.7
115.4
66.7
100
57.8
29.9
66.7
57.8
29.9
144
83.3
125
72.3
36
83.3
72.3
36
40
40
40
30
15
90
50
70
40
20
90
60
90
50
30
125
100
60
30
150
90
125
90
40
200
125
175
100
50
8
8
8
10
14
3
8
6
8
12
3
6
3
8
10
1
3
6
10
1/0
3
1
3
8
3/0
1
2/0
3
8
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1" (25 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1" (25 mm)
3/4" (19 mm)
1" (25 mm)
1/2" (13 mm)
1/2" (13 mm)
1-1/4" (32 mm)
1" (25 mm)
3/4" (19 mm)
1/2" (13 mm)
1-1/4" (32 mm)
1" (25 mm)
1-1/4" (32 mm)
1-1/4" (32 mm)
1/2" (13 mm)
1-1/2" (38 mm)
1-1/4" (32 mm)
1-1/2" (38 mm)
1" (25 mm)
1/2" (13 mm)
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
Model
kW
Volts
Phase
Amp Draw
L1
L2
Breaker or
Copper
Conduit
L3
Fuse Size
Wire Size
Size
125
108
54
175
250
150
70
2/0
250 kcmil
1/0
4
1-1/2" (38 mm)
2" (51 mm)
1-1/4" (32 mm)
1" (25 mm)
200
175
90
3/0
2/0
3
2" (51 mm)
1-1/2" (38 mm)
1" (25 mm)
LI6363CFC
LI6363CFD
LI6363CFE
LI6363CFF
LI6363CFM
36
36
36
36
36
208
208
240
240
480
1
3
1
3
3
173
100
150
86.7
43.3
173
100
150
86.7
43.3
100
86.7
43.3
LI6543CFD
LI6543CFF
LI6543CFM
54
54
54
208
240
480
3
3
3
150
130
65
150
130
65
150
130
65
LI6453CFD
LI6453CFE
LI6453CFF
LI6453CFM
LI6573CFD
LI6573CFF
LI6573CFM
45
45
45
45
57
57
57
208
240
240
480
208
240
480
3
1
3
3
125
188
108
54
3
3
3
158.4
137.3
68.6
125
188
108
54
158.4
137.3
68.6
158.4
137.3
68.6
225
125
200
125
60
200
175
90
4/0
1
3/0
1
6
3/0
2/0
3
1-1/2" (38 mm)
1-1/4" (32 mm)
1-1/2" (38 mm)
1-1/4" (32 mm)
3/4" (19 mm)
2" (51 mm)
1-1/2" (38 mm)
1" (25 mm)
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.).
Capacity
Model
LI663XXX Models
LI693XXX Models
LI6123XXX Models
LI6153XXX Models
LI6183XXX Models
LI6243XXX Models
LI6303XXX Models
LI6363XXX Models
LI6453XXX Models
LI6543XXX Models
LI6573XXX Models
kW
6
9
12
15
18
24
30
36
45
54
57
40°F (22°C) Rise
70°F (39°C) Rise
60 gph (227 lph)
90 gph (341 lph)
120 gph (454 lph)
151 gph (572 lph)
181 gph (685 lph)
241 gph (912 lph)
301 gph (1139 lph)
361 gph (1367 lph)
452 gph (1711 lph)
542 gph (2052 lph)
573 gph (2169 lph)
34 gph (129 lph)
52 gph (197 lph)
69 gph (261 lph)
86 gph (326 lph)
103 gph (390 lph)
138 gph (522 lph)
172 gph (651 lph)
206 gph (780 lph)
258 gph (977 lph)
310 gph (1174 lph)
326 gph (1234 lph)
NOTE: Storage capacity is 6 gallons (23 liters).
Form No. EBOOSTERBWM-1009
5
Shipping Weight
118 lbs. (54 kg)
118 lbs. (54 kg)
120 lbs. (54 kg)
120 lbs. (54 kg)
120 lbs. (54 kg)
142 lbs. (64 kg)
142 lbs. (64 kg)
142 lbs. (64 kg)
142 lbs. (64 kg)
142 lbs. (64 kg)
142 lbs. (64 kg)
INSTALLATION
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.
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).
WARNING
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 and electrical inspectors for proper
procedures and codes.
5. If installing the unit with mounting brackets, use the
following procedure:
WARNING
• Consult a licensed electrical contractor for proper
electrical installation conforming to local electrical
codes and the National Electrical Code (N.E.C.).
Make sure the dish table is strong enough to support the
weight of the booster heater and water when installing
with slide mounting brackets.
• Unit is not weatherproof. Locate unit indoors where
ambient air temperature is a minimum of 70°F (21°C).
Follow standard welding safety and operational
procedures when attaching sliderails to bottom of dish
table.
• 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.
• Space slide rails as shown below, and weld the rails to
the bottom of the dish table.
Models 24–58 kW
20-1/4″
(514 mm)
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).
Models 6–18 kW
15-1/4″
(387 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.
Weld slide rail
to bottom of
dish table.
Fasten slide brackets
to booster water heater
sides.
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).
Figure 3. Attaching the Slide Rails to the Dish Table
1. Remove the unit from the carton.
• Using the Bradford White slide brackets as a template,
drill 1/8″ (3 mm) holes into the sides of the heater jacket.
2. Remove the information packet.
3. Remove tape and protective packaging from all surfaces
of unit.
• Attach slide brackets
to the sides of the
booster water heater
with 3/4 x 8 sheet
metal
screws
supplied.
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.
• Slide the booster
water heater onto
slide rails under dish
table.
NOTICE
Do not lay unit on the side with the control panel. Damage
to the unit could occur.
6
Form No. EBOOSTERBWM-1009
INSTALLATION
Legs
Plastic Leg
Pressure Reducing Valve
Stainless Steel Leg
One pressure reducing valve with built-in bypass supplied
with all booster water heaters.
Mounting Brackets with Hardware
Shock Absorber
A set of mounting brackets or a set of legs are supplied with
each booster water heater.
An optional shock absorber is available for all booster water
heaters.
Temperature/Pressure Gauge
Blended Phosphate Water Treatment System
An optional blended phosphate water treatment system is
available for all booster water heaters.
Two temperature/pressure gauges are supplied with all
booster water heaters.
Temperature/Pressure Relief Valve
Back Pressure Relief Valve
One temperature/pressure relief valve supplied with all
booster heaters.
An optional back pressure relief valve is available for all
booster water heaters.
Figure 4. Components Shipped with the Magnum Series Commercial Electric Booster
Form No. EBOOSTERBWM-1009
7
INSTALLATION
Temperature/Pressure Relief Valves
Pressure Reducing Valve
For protection against excessive pressures and temperatures in
the booster heater, install temperature/pressure protective
equipment required by local codes. The temperature/pressure
relief valve supplied with this booster water heater is
constructed with brass working parts and heat resistant silicone
seat discs.
CAUTION
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.
WARNING
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.
Proper operation of the commercial dish machine rinse nozzles
requires that available water pressure at the rinse nozzle be
between 15 and 25 psi (103 and 172 kPa) when the nozzle is
operated. 20 psi (138 kPa) is recommended. If water pressure
available to the booster water heater inlet is over 20 psi
(138 kPa), a pressure reducing valve must be installed in the hot
water supply line to the booster water heater and adjusted to
deliver 20 psi (138 kPa) flow pressure.
The valve supplied with the unit has a built-in high pressure
bypass that prevents excessive pressure build-up as the
booster heats up. Final adjustment is required at the time of
installation.
FOR INSTALLING COMBINATION TEMPERATURE/
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.
Temperature/Pressure Gauges
CAUTION
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.
NOTE: If a check valve is installed and cannot be removed
install a back pressure relief valve set at 125 psi (862
kPa) on the incoming line between the pressure
reducing valve and the inlet to the booster water
heater. Discharge must be to open site drain (see
Figure 7).
Blended Phosphate Water Treatment
System (optional)
Bradford White recommends that the Blended Phosphate Water
Treatment System be installed with unions on the incoming 3/4"
water supply line after the pressure reducing valve and before
the booster water heater.
Cartridges supplied have a usage rating of 100,000 gallons
(378,541 liters) of water. To assure proper operation the
cartridges must be replaced when expired.
NOTE: Product failure caused by liming or sediment buildup is
not covered under warranty.
CAUTION
BURN HAZARD: 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 an anti-siphon or check valves on incoming
water line.
8
Form No. EBOOSTERBWM-1009
INSTALLATION
Inlet
Plumbing Connections
Use the following procedures to connect the inlet and outlet
water lines as well as inspect the system once the plumbing
connections are complete.
(Refer to Figure 5, 6, or 7)
1. Connect the booster water heater inlet to a hot water
supply line from the regular water heater. Water
temperature from the regular water heater should be 110°
or 140°F (43° or 60°C) and should not exceed 160°F
(71°C). Minimum temperature differential between inlet and
outlet should never be less than 20°F (11°C).
WARNING
Do not connect an expansion tank of any type to booster
water heater lines.
NOTE: The red mark on the inlet and outlet water pipes of
Magnum Series units must remain in the top most
position.
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.
2. Provide the inlet line with a shut-off valve, (a full opening
gate or ball type), one temperature/pressure gauge, and
the pressure reducing valve. Set pressure reducing valve
at 20 psi (138 kPa) flow pressure.
CAUTION
NOTE: A 3/4" union and a drain valve are required
for easy servicing.
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.
NOTE: Be sure water flows through the pressure reducing
valve in the proper direction. Check directional arrow.
Valve will reduce pressure only during flow conditions.
Do not connect booster water heater to domestic
(consumer) dish machines or other domestic utilized
equipment. Hot water from booster heater may damage
domestic equipment resulting in a hazardous condition.
NOTE: An optional back pressure relief valve is available for
installation on the water inlet line when local plumbing
codes require a check valve.
3. Install a temperature/pressure gauge in both the inlet and
outlet lines. Install the temperature sensing bulb in the
water stream. The gauge must be mounted upright (see
Figures 8 and 9).
NOTICE
Use dielectric couplings when connecting dissimilar
metals, such as galvanized to copper. This will prevent
electrolysis or premature plumbing damage.
NOTE: Tighten gauge during installation by only turning the
1/2" brass nut. DO NOT turn the face of the gauge.
Turning the face will cause inaccurate measurements.
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.
NOTE: Product failure caused by liming or sediment buildup is
not covered under warranty.
Form No. EBOOSTERBWM-1009
9
INSTALLATION
Temperature/Pressure
Gauge
Temperature/Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
Temperature/Pressure Gauge
Outlet
Pressure Reducing Valve w/Bypass.
Maximum 20 psi (138 kPa)
flow pressure.
3/4″ Gate or
Ball Valve*
Shock Absorber †
Outlet to
dish
machine
Water inlet
from regular
water heater
3/4″ Union*
Inlet
Blended Phosphate Water
Treatment System †
Drain Valve*
3/4″ Union*
Floor Drain
Discharge from T/P relief valve.
Air gap must comply with plumbing code.
† Optional accessory
* Not supplied with booster water heater
Figure 5. Plumbing Connections - Magnum Series 6-18 kW
Temperature/Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
Temperature/Pressure Gauge
Pressure Reducing Valve w/Bypass.
Maximum 20 psi (138 kPa)
flow pressure.
3/4″ Gate or
Ball Valve*
Temperature/Pressure
Gauge
Outlet
Shock Absorber †
Outlet to
dish
machine
Water inlet
from regular
water heater
3/4″ Union*
Inlet
Blended Phosphate Water
Treatment System †
Drain Valve*
3/4″ Union*
† Optional accessory
Floor Drain
Discharge from T/P relief valve.
Air gap must comply with plumbing code.
Figure 6. Plumbing Connections - Magnum Series 24-57 kW
Pressure Reducing Valve w/Bypass.
Maximum 20 psi (138 kPa)
flow pressure.
Temperature/Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
Back Pressure
Relief Valve
Temperature/Pressure Gauge
* Not supplied with booster water heater
Temperature/Pressure
Gauge
Outlet
Shock Absorber †
3/4″ Gate or
Ball Valve*
Blended Phosphate
Water Treatment
System †
Water inlet
from regular
water heater
3/4″ Union*
Inlet
Discharge from back pressure
relief valve. Air gap must
comply with plumbing code.
Drain Valve*
3/4″ Union*
Floor Drain
† Optional accessory
Outlet to
dish
machine
Floor Drain
Discharge from T/P relief valve.
Air gap must comply with plumbing code.
* Not supplied with booster water heater
Figure 7. Booster Water Heater with Optional Back Pressure Relief Valve
10
Form No. EBOOSTERBWM-1009
INSTALLATION
Outlet
1. Using a 3/4″ union and piping, connect the booster water
heater outlet to the commercial dish machine sanitizing
rinse pipe connection.
CAUTION
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.
NOTE: The red mark on the inlet and outlet water pipes of
Magnum Series units must remain in the top most
position.
NOTE: Make sure the connection is made to the final rinse
and not to the wash tank.
Electrical — All Sizes and Voltages
2. Install a temperature/pressure gauge in the outlet line. The
temperature sensing element must be in the water stream
and the gauge must be mounted upright. Water
temperature at the outlet should be 185°–190°F
(85°–88°C).
General
Bradford White Electric Booster Water Heaters are available for
operation on standard power systems. Check the identification
decal for the proper power supply.
WARNING
ELECTRIC SHOCK HAZARD:
• Turn power OFF at disconnect switch/circuit breaker
and allow unit to cool before performing any
maintenance or cleaning.
Temperature/Pressure
Gauge
1/2″ Copper Female
Fitting Adapter
• Consult a licensed electrical contractor for proper
electrical installation conforming to local electrical
codes and the National Electrical Code (N.E.C.).
1/2″ pipe thread
Temperature
Sensing
Element
NOTICE
Connect electric booster water heater to the same power
supply as indicated on the specification decal only. Units
connected to an incorrect power supply voids the product
warranty and will damage the equipment.
3/4″ Nominal
Copper Pipe
Figure 8. Recommended Temperature/Pressure Gauge Installation
All internal electrical connections have been made at the
factory. See the “Circuit Breaker and Fused Disconnect Switch
Sizes” charts in the SPECIFICATIONS section for supply wire
size, fuse, breaker, and conduit recommendations. Consult local
codes for verification and compliance.
Temperature/
Pressure Gauge
w/1/2″ pipe thread
Bottom of sensor
centered in
copper pipe.
3/4″ Nominal
Copper Pipe
Electrical Connections
1. Remove the front jacket cover screws. Ease the cover
forward and upward. The control box is under the front
hinged jacket cover.
1/2″ Copper
Female Fitting
Adapter
2. Locate the heater terminal or fuse block(s) inside the unit.
Temperature
Sensing
Element
NOTE: See the “Circuit Breaker and Fused Disconnect Switch
Sizes” charts for proper connections and wire size.
3. Bring power leads from a
properly sized disconnect
switch or circuit breaker
through the knockout provided
on the unit, and connect to the
terminal or fuse block(s). USE
COPPER
WIRE
ONLY.
TIGHTEN CONNECTIONS
PROPERLY TO A MINIMUM
OF 40 INCH POUNDS.
3/4″ Copper Tee
Figure 9. Alternate Temperature/Pressure Gauge Installation
NOTE: Bradford White recommends installing an optional
shock absorber in the outlet line as close as possible
to the commercial dish machine solenoid rinse valve.
The shock absorber softens the water hammer caused
by automatic dish machine valves.
Knockout
NOTE: Due
to
the
rigors
Locations
of
transportation
all
connections should be
checked for tightness before booster water heater is
put into operation.
Plumbing Installation Inspection
1. Close drain pipe shut-off valve and fill booster water heater
with water.
2. Check all pipe connections for leaks.
3. Make sure the temperature/pressurerelief valve discharge
is not blocked.
4. Vent air from the booster tank before turning on the unit by
opening the temperature/pressure relief valve as well as
running the dish machine through several cycles.
Form No. EBOOSTERBWM-1009
4. A grounding lug is provided near the supply terminals. An
equipment grounding conductor must be properly
connected to it.
11
5. Replace and secure the front jacket cover.
OPERATION
8. When the booster water heater has had sufficient heating
time, operate the rinse cycle and check the water
temperature and pressure readings on the gauges.
General
Use the following procedures to operate the Magnum Series
Commercial Electric Booster water heater.
Water temperature at the booster outlet should be
185°–190°F (85°–88°C) and flow pressure should be 20
psi (138 kPa) maximum.
WARNING
NOTE: Outlet water temperatures can be adjusted
for low-temperature dish machine applications. See
the Maintenance section for thermostat adjustment
procedure.
Read all safety messages in the Important Safety
Information section before operating this equipment.
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.
WARNING
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.
Startup
1. Close the drain pipe shut-off valve.
2. Open the shut-off valve to primary water supply. The water
temperature at the inlet should be 110° to 140°F (43° to
60°C) and should not exceed 160°F (71°C).
Shutdown
Under normal and regular operation, Bradford White
recommends that the unit be turned on at all times.
NOTE: Minimum temperature differential between inlet and
outlet should never be less than 20°F (11°C).
If the booster water heater will not be used for an extended
period of time or will be exposed to freezing conditions it should
be drained to prevent damage to the unit.
3. When the booster tank is filled with water, vent all air from
the tank before turning on the unit. To vent the booster tank:
1. Move the Power ON/OFF switch to the OFF position.
• Open the temperature/pressure relief valve.
• Run the dish machine through several cycles to vent air
through the rinse nozzles.
2. Disconnect power supply to the booster water heater.
3. Close the inlet water supply line shut-off valve to the
booster water heater.
4. Check all plumbing connections for leaks.
5. Check the temperature/pressure relief valve discharge
opening to be sure it is not blocked and no scale or other
foreign matter has reduced the size of the opening.
NOTICE
ALWAYS drain booster water heater with power to the unit
off or element burnout could occur.
4. Open the drain shut-off valve and drain all water from the
booster water heater tank.
CAUTION
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.
6. Turn on the electrical supply to the booster heater.
7. Move the Power ON/OFF switch to the ON position. The
indicator light will turn on.
Indicator Light
Power ON/OFF
Switch
Figure 10. Control Panel
12
Form No. EBOOSTERBWM-1009
MAINTENANCE
General
Bradford White Magnum Series Commercial Electric Booster
water heaters are designed for maximum durability and
performance, with minimum maintenance.
Outer
Adjustment
Screw
WARNING
ELECTRIC SHOCK HAZARD:
• Turn power OFF at disconnect switch/circuit breaker
and allow unit to cool before performing any
maintenance or cleaning.
Inner
Adjustment
Screw
Figure 12. Thermostat Adjustment
• This unit must be serviced by qualified personnel only.
Service by unqualified personnel may lead to electric
shock or burn.
NOTE: 1/6 turn of the outer screw equals 12°F (6.7°C).
If recalibration is necessary, with the outer screw at high stop
turn inner adjustment screw clockwise to raise the set point.
• Use only Genuine Bradford White Replacement Parts
when service is required. Failure to use Genuine Bradford
White Replacement Parts will void all warranties and may
subject operators of the equipment to hazardous
electrical voltage, resulting in electrical shock or burn.
Genuine Bradford White Replacement Parts are specified
to operate safely in the environments in which they are
used. Some aftermarket or generic replacement parts do
not have the characteristics that will allow them to
operate safely in Bradford White equipment.
NOTE: 1/6 turn of the inner screw equals 8°F (4.4°C).
Temperature/Pressure Relief Valve
The temperature/pressure relief valve lever must be operated at
least once a year to ensure that waterways are clear. Certain
naturally occurring mineral deposits may adhere to the valve,
blocking waterways and rendering it inoperative. When the lever
is operated, hot water will discharge from the attached discharge
line if waterways are clear. In addition to annual operation of the
valve lever, the condition of the temperature/pressure relief valve
must be inspected every two to four years by a licensed plumber
or qualified service technician.
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.
Thermostat Adjustment
The thermostat is factory calibrated to produce temperatures of
185°–190°F (85°–88°C). If adjustment or recalibration is
required use the following procedure.
WARNING
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.
NOTE: Low temperature dish machines require the thermostat
to be adjusted to 140°–150°F (60°–66°C).
1. Remove the access cover.
BURN HAZARD: Water in unit is very hot. Wear protective
gloves and proper attire when operating to avoid injury.
Use the following procedure to test the temperature/pressure
relief valve.
1. Make sure a properly installed
Temperature/Pressure
discharge line is connected to
Relief Valve Lever
(Closed Position)
the relief valve. The discharge
line must direct the flow of hot
water from the valve to a
proper place of disposal.
Thermostat
High Temperature
Limit Safety Switch
2. Pull up slightly on the relief valve
lever. The lever is connected to
a strong spring, so it will take
some force to move the lever.
Access Cover
• If water flows freely from the
Discharge
discharge line, the valve is
Line
clear and operating properly.
Release the lever down into the closed position (vertical).
Figure 11. Access Cover for Thermostat and
High Temperature Limit Safety Switch
2. Adjust the thermostat in the desired direction.
• To lower the temperature setpoint, turn the outer
adjustment screw counterclockwise.
• If water does not flow freely from the discharge line, the
valve is obstructed and must be replaced immediately.
Release the lever, turn off the booster water heater, and
contact a trained, licensed plumber to replace the valve.
• To raise the temperature setpoint, turn the outer
adjustment screw clockwise.
Form No. EBOOSTERBWM-1009
13
NOTE: If dripping or discharge occurs when the relief valve
lever is in the closed position (vertical), turn off the
booster water heater and contact a licensed plumber
immediately. Discharge may indicate that an unsafe
temperature or pressure condition exists.
MAINTENANCE
High Temperature Limit Safety Switch
Blended Phosphate Treatment System
(optional)
Bradford White Commercial Electric Booster water heaters are
equipped with a manually reset high temperature limit safety
switch. If the temperature of the water in the heater exceeds
210°F (99°C) the safety switch will shut off the power. The
switch must be reset manually by pushing the red button.
Use the following procedure if the high temperature limit safety
switch needs to be reset.
The Blended Phosphate Water Treatment System dispenses a
small amount of polyphosphate into the water before the water
enters the booster water heater. The mineral molecules in the
water, which have a positive charge, are attracted to the
negative charge of the polyphosphate. The mineral molecules
are unable to join together, so scale is unable to form. Use the
following procedure to replace a blended phosphate cartridge.
1. Remove the access cover (see Figure 11).
1. Shut off electrical power to the booster water heater.
2. Push the red reset button on the high temperature limit
safety switch.
2. Shut off the inlet water supply and open drain shut-off valve
to remove water in piping.
3. Loosen canister using wrench attached.
Red Reset Button
4. Remove canister and discard depleted cartridge.
5. Using a clean damp cloth, wipe interior of canister clean.
NOTE: Make sure the o-ring seal is placed properly in canister.
6. Reverse procedure to reinstall.
Figure 13. High Temperature Limit Safety Switch
3. If tripping repeats, call an Authorized Service Agent.
TROUBLESHOOTING GUIDE
4. Booster water heater voltage must be correct for the
voltage available. Check nameplate on the booster water
heater for full information.
General
5. Water pressure at the inlet to the booster water heater must
be adequate for proper operation of the rinse cycle of the
dish machine, not to exceed 20 psi (138 kPa). Check with
dish machine manufacturer for specific details.
WARNING
ELECTRIC SHOCK HAZARD:
• Turn power OFF at disconnect switch/circuit breaker
and allow unit to cool before performing any
maintenance or cleaning.
6. The breakers or fuses MUST be sized properly.
7. Be sure that the temperature/pressure relief valve is one
supplied by Bradford White and is installed properly.
• This unit must be serviced by qualified personnel only.
Service by unqualified personnel may lead to electric
shock or burn.
IMPORTANT! Many times when a booster water heater does
not appear to be functioning properly, the fault is not with the
booster water heater itself but with factors outside the heater.
Before proceeding with the troubleshooting charts, perform the
following steps first.
8. A check valve should not be installed ahead of the booster.
NOTE: If a check valve is installed and cannot be removed,
install a back pressure relief valve set at 125 psi
(862 kPa) on the incoming line between the pressure
reducing valve and the inlet to the booster water
heater. Discharge must be to open site drain.
1. Check the temperature of the water feeding into the
booster tank. It must be 110° to 140°F (43° to 60°C)
depending on the heating capability of the unit. The inlet
water supply must be in sufficient quantity to hold its
temperature throughout the dishwashing operation.
9. Primary water heater temperature should not exceed 160°F
(71°C).
2. If incoming water exceeds 20 psi (138 kPa), a pressure
reducing valve must be installed.
3. If the wash tank of the dish machine is filled through the
booster water heater, this will use up all of the 180°F (82°C)
water in storage. Sufficient time must be allowed to reheat
the water in storage before starting the dishwasher.
14
Form No. EBOOSTERBWM-1009
TROUBLESHOOTING GUIDE
Symptom
Water reaches 180°F (82°C) but
does not last through the entire
dishwasher operation.
Probable Cause
Corrective Action
Low incoming water temperature.
Incoming water temperature drops.
Flow pressure is too high.
Booster water
undersized.
heater
may
be
Incorrect voltage.
The booster heater does not heat
at all or only delivers water at
120°–150°F (49°–66°C).
Unit may have been energized
without water (dry fired).
Primary water supply is not adequate to provide
correct temperature in sufficient quantities.
Increase supply of primary hot water.
Higher pressure uses an excessive quantity of hot
water. Adjust flow pressure to 20 psi (138 kPa).
Booster water heater must be sized properly for
incoming water temperature and rinse
requirements of the dish machine.
Check voltage on heater serial plate and make
sure supplied voltage matches. A 240 V booster
water heater operating on 208 V reduces wattage
to 76% of the normal output.
This will cause the elements to burn out quickly.
Replace the element(s).
Fuses may be blown or circuit
breaker tripped.
Check for proper fuse sizing. Replace fuses.
Check/reset circuit breaker.
Temperature
setting
calibration or inoperable.
Temperature setting
of 190°F (88°C).
Over-current fuses may be blown.
out
of
Contactors do not pull in.
Contact Authorized Service Agent or Bradford
White for assistance.
should
be
maximum
Contact Authorized Service Agent or Bradford
White for assistance.
High limit switch may be tripped or
defective.
Reset switch. If switch continues to trip or cannot
be reset contact an Authorized Service Agent.
Low water cutoff inoperable,
contacts do not close.
Contact Authorized Service Agent or Bradford
White for assistance.
Transformer not working properly.
Form No. EBOOSTERBWM-1009
Incoming water temperature must be adequate
for booster size. Increase incoming water
temperature.
15
Contact Authorized Service Agent or Bradford
White for assistance.
TROUBLESHOOTING GUIDE
Symptom
Water at dish machine is not at the
proper temperature.
Probable Cause
Gauge(s) not working properly.
Thermostat set too low.
Heating elements burn out.
Booster heater has more than 5
linear feet (1524 mm) of water pipe
to the dishwasher, causing the water
to cool off inside the pipe.
Tank inadvertently drained leaving
elements in a dry condition.
Lime buildup in tank causing
elements to split and burn out.
Relief valve dribbles.
No pressure reducing valve installed
or incorrect valve installed causing
pressure build-up inside booster
tank.
High temperature limit trips.
Chattering contactor or low water
cutoff circuit board.
Check temperature of water with a thermometer
to be certain gauges are working correctly. If not,
replace gauge(s).
Adjust or recalibrate. If thermostat will not
recalibrate properly, replace it.
If located farther than 5 linear feet (1524 mm),
pipes should be wrapped in insulation, and/or a
recirculating system installed.
Make sure tank is full of water at all times.
Contact Authorized Service Agent or Bradford
White for assistance.
Clean or delime tanks periodically. A water
softener or blended phosphate treatment system
may be required.
A pressure reducing valve with high pressure
bypass must be installed in the incoming water
line to allow water to expand back into the feed
line.
Bypass in pressure reducing valve
may be blocked.
Clean bypass or replace with new valve
with built in bypass.
Unit is overheating.
Thermostat may be set too high or is sticking.
Recalibrate or replace the thermostat.
Check valve or anti-siphon valve
installed in the feed line.
Relief valve opens.
Corrective Action
Remove check valve or anti-siphon valve to allow
for water expansion or install a back pressure
relief valve on the incoming water line.
Contactor may be sticking in closed
position not allowing unit to cycle off.
Contact Authorized Service Agent or Bradford
White for assistance.
Thermostat set too high.
Adjust or recalibrate to proper temperature.
Loose
connections
or
wire
connection has insulation under
crimp.
Contact Authorized Service Agent or Bradford
White for assistance.
Probe may be fouled.
Contact Authorized Service Agent or Bradford
White for assistance.
Temperature limit set too low.
Incoming water temperature too high
causing nuisance tripping of high
temperature limit switch.
Low voltage.
Contactor(s) may be bad.
16
If booster water heater is not overheating,
Contact Authorized Service Agent or Bradford
White for assistance.
Incoming water temperature should not be higher
than 160°F (71°C).
Contact Authorized Service Agent or Bradford
White for assistance.
Contact Authorized Service Agent or Bradford
White for assistance.
Form No. EBOOSTERBWM-1009
ACCESSORIES
Stainless Steel Adjustable Legs
Floor Mounting Hardware
1. Carefully place the unit on its side.
Stainless steel adjustable legs with deck mounting flange are
available for securing the booster heater to the floor.
NOTICE
Shock Absorber
The shock absorber installed between the booster and the
commercial dish machine reduces water hammer induced by
rapidly operating valves. The water hammer can cause damage
to the equipment.
Do not lay unit on the side with the control panel. Damage
to the unit could occur.
2. Thread the adjustable legs into the existing leg holes on
the bottom of the unit.
3. After all legs are secure, return the unit to the upright
position.
Blended Phosphate Water Treatment
System
The Blended Phosphate Water Treatment System is installed
before the booster water heater and reduces mineral scale
build-up by introducing a measured amount of polyphosphate
into the water.
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).
Bradford White recommends that the Blended Phosphate Water
Treatment System be installed with unions on the incoming 3/4"
water supply line after the pressure reducing valve and before
the booster water heater.
Cartridges supplied have a usage rating of 100,000 gallons
(378,541 liters) of water. To assure proper operation the
cartridges must be replaced when expired.
NOTE: Product failure caused by liming or sediment buildup is
not covered under warranty.
Figure 14. Optional Stainless Steel Adjustable Legs
Form No. EBOOSTERBWM-1009
17
WIRING DIAGRAMS
6 – 9 kW Wiring Diagram, All Voltages, Single- or Three-Phase
10-01-454
12 – 18 kW Wiring Diagram, All Voltages, Three-Phase
10-01-448
18
Form No. EBOOSTERBWM-1009
WIRING DIAGRAMS
12 – 15 kW Wiring Diagram, 208 and 240 V, Single-Phase
10-01-452
18 kW Wiring Diagram, 208 and 240 V, Single-Phase
10-01-447
Form No. EBOOSTERBWM-1009
19
WIRING DIAGRAMS
24 – 30 kW Wiring Diagram, 240 V, Single-Phase
10-01-432
24 – 36 kW Wiring Diagram, 208 and 240 V, Three-Phase
10-01-433
20
Form No. EBOOSTERBWM-1009
WIRING DIAGRAMS
24 – 36 kW Wiring Diagram, 480 V, Three-Phase
10-01-435
36 kW Wiring Diagram, 240 V, Single-Phase
10-01-436
Form No. EBOOSTERBWM-1009
21
WIRING DIAGRAMS
36 – 57 kW Wiring Diagram, 208 and 240 V, Three-Phase
10-01-437
45 – 57 kW Wiring Diagram, 480 V, Three-Phase
10-01-434
22
Form No. EBOOSTERBWM-1009
LIMITED COMMERCIAL WATER HEATER WARRANTY
WHAT DOES THIS LIMITED WARRANTY COVER?
This limited warranty covers both the tank and component parts
for leakage or other malfunction caused by defects in materials
and/or workmanship. It extends to the first buyer and to any
subsequent owner(s) as long as the water heater remains
installed at its original place of installation.
HOW DOES STATE LAW RELATE TO THE WARRANTY?
Some states do not allow:
1. Limitations on how long an implied warranty lasts.
2. Limitations on incidental or consequential damages.
So the above limitations or exclusions may not apply to you.
This warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
WHAT DOES THIS LIMITED WARRANTY NOT COVER?†
1. This limited warranty does not cover leakage or other
malfunction caused by:
a) Defective installation, and specifically, any installation
which is made:
WHAT WILL WE DO TO CORRECT PROBLEMS?
If a defect occurs within the warranty period, we will:
1. Provide a replacement water heater of our manufacture,
(or at our option) repair any unit which develops a leak in
the tank within the tank warranty period. If government
regulations require the replacement water heater to have
features not found in the defective water heater, you will
be required to pay the difference in price represented by
those government required features.
i) in violation of applicable state or local plumbing,
housing or building codes, or
ii) without a certified American Gas Association, ASME,
or comparable combination temperature and pressure
relief valve, or
iii) contrary to the written instructions furnished with the
unit.
b) Adverse local conditions, and specifically, sediment or
lime precipitate in the tank or corrosive elements in the
atmosphere.
2. Provide a replacement part (or at our option repair) any part
which fails to function within the parts warranty period. To
obtain a replacement, you must forward the defective part
to us. If government regulations require the replacement
part to have features not found in the defective part, you
will be required to pay the difference in price represented
by those government required features.
c) Misuse, and specifically, operations, and maintenance
contrary to the written instructions furnished with the
unit, removal of anode(s), disconnection, alteration or
addition of nonapproved components or apparatus,
operation with fuels or at settings other than those set
forth on the rating plate, or accidental or other exterior
damage.
We do reserve the right to verify any claims of defect by
inspection.
2. This warranty also does not cover:
WHAT WILL WE NOT DO?
We will not:
a) Production of noise, taste, odors, discoloration or rusty
water.
1. Repair or replace any water heater, or part, subject to
conditions outlined in “What Does This Limited Warranty
Not Cover?”
b) Incidental property damage, loss of use, inconvenience
or other incidental or consequential costs.
2. Reimburse any costs associated with repair and/or
replacement.
c) Costs associated with the replacement and/or repair of
the unit, including:
3. Replace and/or repair any water heater without complete
model/serial number.
i) any freight, shipping or delivery charges
ii) any removal, installation or re-installation charges
iii) any material, and/or permits required for installation,
re-installation or repair
iv) charges to return the defective water heater and/or
component part to the manufacturer.
HOW DO YOU GET WARRANTY ASSISTANCE?
Upon discovering a defect or problem, you should:
1. Contact either the installer or dealer, or
2. Contact us-BRADFORD WHITE CORPORATION
WARRANTY SUPPORT GROUP
200 LAFAYETTE STREET
MIDDLEVILLE, MI 49333
(800) 531-2111
WHAT IS THE PERIOD OF COVERAGE?
This limited warranty runs from date of installation (or without
proof of installation, from three [3] months after the date of
manufacture) for one (1) year on Parts, PLUS four (4) additional
years on the tank only.
CALIFORNIA RESIDENTS CALL 1-800-538-2020
Please have model number and serial number ready.
WHAT IS THE DURATION OF THE IMPLIED WARRANTY?
ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTY
OF MERCHANTABILITY IMPOSED ON THE SALE OF THE
WATER HEATER UNDER THE LAWS OF THE STATE OF
SALE ARE LIMITED IN DURATION TO ONE YEAR FROM
DATE OF ORIGINAL INSTALLATION.
Continued...
† Restrictions are not applicable to implied warranties in California. See “Special State Provisions” on next page.
Form No. EBOOSTERBWM-1009
23
LIMITED COMMERCIAL WATER HEATER WARRANTY (CONTINUED)
WHAT SHOULD YOU DO TO KEEP THE WARRANTY IN
EFFECT?
To facilitate warranty assistance, you should:
SPECIAL STATE PROVISIONS
For water heaters installed in California or Oregon,
Paragraphs 2(c) (i) (iv) of the paragraph “WHAT DOES
THIS WARRANTY NOT COVER?” does not apply.
1. Follow all instructions enclosed with the product.
2. Retain all bills of sale or receipts for proof of installation,
etc.
All other terms and conditions of this warranty apply as
stated.
3. Contact your installer, dealer or our Warranty Department
as soon as any problem or defect is noticed.
4. When necessary, allow us, or our chosen representative,
to inspect the unit.
5. For your reference, fill in the Model and Serial Number
found on the units Rating Plate:
Model Number ____________________________________
Serial Number ____________________________________
Date of Installation ________________________________
PLEASE RETAIN THIS WARRANTY IN A SAFE LOCATION FOR FUTURE REFERENCE.
24
Form No. EBOOSTERBWM-1009
NOTES
Form No. EBOOSTERBWM-1009
25
Ambler, PA 19002
Technical Service 800.334.3393
Service Parts 800.538.2020
Warranty Service 800.531.2111
www.bradfordwhite.com
Printed in U.S.A. October 2009
Part No. 07.04.474.00 Form No. EBOOSTERBWM-1009
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