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.
Ne pas utiliser cet équipement sans avoir
lu et compris le contenu de ce manuel !
Le non-respect des instructions
contenues dans ce manuel peut entraîner
de graves blessures ou la mort. Ce
manuel contient des informations
importantes concernant l'entretien,
l'utilisation et le fonctionnement de ce
produit. Si vous ne comprenez pas le
contenu de ce manuel, veuillez le signaler
à votre supérieur. Conservez ce manuel
dans un endroit sûr pour pouvoir vous y
référer plus tard.
Français = p 31
NOTICE
CAUTION
WARNING
24 Hour 7 Day Parts and Service
Assistance available in the United States
and Canada by calling 800-558-0607.
CONTENTS
English
Important Owner Information ..............................................2
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 Hatco for service assistance.
Model No. __________________________________
Serial No.__________________________________
Voltage____________________________________
Authorized Parts Distributors............................Back Cover
Business
Hours:7:00
Telephone: 800-558-0607; 414-671-6350
e-mail:partsandservice@hatcocorp.com
AM to 5:00 PM Central Standard Time (CST)
(Summer Hours: June to September—
AM to 5:00 PM CST Monday–Thursday
7:00
7:00
AM to 4:00 PM CST Friday)
Date of Purchase____________________________
Register your unit!
Completing online warranty registration will prevent delay in
obtaining warranty coverage. Access the Hatco website at
www.hatcocorp.com, select the Parts & Service pull-down
menu, and click on “Warranty Registration”.
INTRODUCTION
Hatco Electric Booster Water Heaters are designed
for use with commercial dish machines to boost the temperature
of the regularly available hot water, usually 115°–150°F
(46°–66°C) up to 180°F (82°C). Water at 180°F (82°C) can be
used as sanitizing rinse water in commercial dish machines in
accordance with Health Codes, NSF Standard #5 and plumbing
codes.
All Hatco Booster Heaters are ready for electrical and plumbing
service connections, with an adjustable ambient compensated
immersion thermostat(s) and a high temperature limit switch.
The service area is accessible from the front of the unit,
permitting easy access.
Hatco 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.
Additional information can be found by visiting our web site at
www.hatcocorp.com.
This manual provides the installation, safety, and operating
instructions for the Hatco Electric Booster Water Heaters. Hatco
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.
2
Form No. EBOOSTERM-0816
English
WARNING
WARNING
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
.
ELECTRIC SHOCK HAZARD:
• Unit must be installed by qualified, trained installers.
Installation must conform to all local electrical and
plumbing codes. Installation by unqualified personnel
will void the unit warranty and may lead to electric
shock or burn, as well as damage to unit and/or its
surroundings. Check with local plumbing and electrical
inspectors for proper procedures and codes.
• Turn OFF power at fused disconnect switch/circuit
breaker and allow unit to cool before performing any
cleaning, adjustments, or maintenance.
• 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
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 Hatco Replacement Parts when
service is required. Failure to use Genuine Hatco
Replacement Parts will void all warranties and may
subject operators of the equipment to hazardous
electrical voltage, resulting in electrical shock or burn.
Genuine Hatco 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 Hatco equipment.
Valves supplied by Hatco are designed for hightemperature commercial operation. Do not substitute Hatco
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.
EXPLOSION HAZARD: Do not store or use gasoline or
other flammable vapors or liquids in the vicinity of this or
any other appliance.
FOR INSTALLING PRESSURE AND TEMPERATURE
RELIEF VALVES IN ACCORDANCE WITH AMERICAN
NATIONAL STD. Z21.22-1979. Combination pressure and
temperature relief valves with extension thermostats must
be installed so that the temperature-sensing element is
immersed in the water within the top 6" (152 mm) of the
tank. They must be installed directly in a tank tapping.
Combination pressure and temperature 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 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' (9.1 m), 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.
Use only copper plumbing material. Non-copper plumbing
material may create an unsafe condition.
Units are equipped with a high temperature limit safety
switch that will shut off the power if the unit overheats.
Contact an Authorized Hatco Service Agent if the high
temperature limit safety switch cannot be reset or
continues to trip.
Install booster water heater in a horizontal position with the
base parallel to the floor and the inlet connection at the
lowest point. Improper installation could create an unsafe
condition.
Do not connect booster water heaters to domestic
(consumer) dish machines or other domestic utilized
equipment. This booster may damage domestic equipment.
Form No. EBOOSTERM-0816
3
IMPORTANT SAFETY INFORMATION
CAUTION
WARNING
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
English
.
This product contains fiberglass, a product known to the
state of California to cause cancer, birth defects, or other
reproductive harm.
Install booster water heater as close as possible to a
commercial dish machine. Employ re-circulation if distance
between water heater and dish machine exceeds National
Sanitation Foundation (NSF) specifications of five (5) linear
feet (1524 mm).
Follow standard welding safety and operational procedures
when attaching sliderails to bottom of dishtable.
Make sure the dishtable is strong enough to support the
weight of the heater AND water when installing with slide
mounting brackets.
Refer to the BOOSTER HEATER SIZING CHART in this
manual to ensure proper sizing and avoid personal injury
and/or damage to the booster heater.
It is essential to recognize that even though a water heater
may be properly installed initially and approved, 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 Hatco Service
Agent or contact the Hatco Service Department at
800-558-0607 or 414-671-6350.
BURN HAZARD:
• Water in unit is very hot. Wear protective gloves and
proper attire when operating to avoid injury.
• Valves supplied by Hatco are designed for high
temperature commercial operation. Do not substitute
Hatco valves with valves designed for domestic water
heaters.
Do not use anti-siphon valves on incoming water line.
Check valves on incoming water line is not recommended.
Damages caused by the use of check valves on unit will
not be covered by warranty.
Do not connect booster 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 an expansion tank of any type to booster
heater water lines.
Hatco requires that two temperature/pressure gauges
(Hatco P/N 03.01.003.00) be installed to ensure proper
operation. Install one in the supply line before the pressure
reducing valve and one in the outlet line as close to the
booster 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 inlet is over 20 psi
(138 kPa) during flow, install pressure reducing valve with
built-in bypass (Hatco P/N 03.02.004.00) for proper
operation of dish machine rinse nozzles.
NOTE: The pressure reducing valve must be the type equipped
with a high pressure bypass, as supplied by Hatco.
DO NOT turn on power to the booster heater until tank has
been filled with water and all air has been vented through
the dish machine rinse nozzles. Heating elements will burn
out in seconds if operated when not immersed in water.
Always drain booster 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 outlet water connection on all Large
Compact Series units (C-24 to C-57).
Do not turn or adjust inlet water connection on Compact
Series Booster Heaters or internal water flow will change.
Do not back out or loosen any pipe fittings or leaks may
occur.
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 water. Deionized water will shorten
the life of water reservoir and heating element.
Units are voltage-specific. Refer to specification label for
electrical requirements before beginning installation.
Connecting unit to incorrect power supply will void product
warranty and may damage unit.
4
Form No. EBOOSTERM-0816
English
MODEL DESCRIPTION
All Models
Hatco Electric Water Booster Heaters are available in three
models: Imperial, Compact, and Mini-Compact. All standard
models include 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.
Imperial Models “S” Series
Hatco Imperial models feature a Castone®tank with a 10 year
limited tank warranty, a Power ON/OFF (I/O) switch, an indicator
light and 6" (152 mm) legs. Imperial units have a capacity of 16
gallons (61 liters) and provide up to 573 gallons per hour (gph)
(2169 liters per hour [lph]) of sanitizing rinse water based on a
40°F (22°C) temperature rise.
Mini-Compact Models “MC” Series
Hatco Mini-Compact models feature a stainless steel tank with
a 10 year limited tank warranty and 6" (152 mm) legs. MiniCompact units have a capacity of 3.2 gallons (12 liters) and
provide up to 172 gph (651 lph) of sanitizing rinse water based
on a 40°F (22°C) temperature rise. Ideal for either hot water
sanitizing or point-of-use hot water dispensing.
NOTE: Mini-Compact models can be configured with an
optional Power ON/OFF (I/O) switch.
Mini-Compact Model
Imperial Model
Compact Models “C” Series
Hatco Compact models feature a Castone®tank with a 10 year
limited tank warranty, a Power ON/OFF (I/O) switch, an indicator
light and either 6" (152 mm) legs or slide mounting brackets for
mounting under a dish table. Compact 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.
Compact Model
Form No. EBOOSTERM-0816
5
SPECIFICATIONS
Circuit Breaker and Fused Disconnect Switch Sizes — 4 to 12 kW
Wire size is based on THHN insulated, copper 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 NECtable 310-16. Conduit size
based on conductors plus ground wire sizing per Table C1 from Appendix C.
Only 6, 7 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 the unit. Larger branch circuit required than for balanced 3 phase of equal kW. Balanced
3 phase available, consult factory.
Form No. EBOOSTERM-0816
7
SPECIFICATIONS
WARNING
Circuit Breaker and Fused Disconnect Switch Sizes — 36 to 57 kW
The shaded area contains electrical information for International models only.
Wire size is based on THHN insulated, copper 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 NECtable 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.
ELECTRIC SHOCK HAZARD: Consult a licensed electrical
contractor for proper electrical installation conforming to
local electrical codes and the National Electrical Code
(N.E.C.).
8
Form No. EBOOSTERM-0816
English
SPECIFICATIONS
Sizing Chart for Low-Temp Dish Machines
BOOSTERS RATED AT 30°F (16°C) RISECompactImperial
Dish MachineModel NumberBoosterBooster
For outdated models, consult factory for correct booster.
* Hobart Model AM-12 with serial no. 12-067-357 or below and model AM-12C with serial no. 12-067-537 or below require slightly
larger booster than listed. ‘C’ Models with serial no. 85-1041605 or greater use Opti-Rinse.
Shaded area indicates older models prior to Opti-Rinse.
This selector chart is based on 40°F (22°C) and 70°F (39°C) temperature rises, 20 psi flow pressure, and minimum rinse cycle timer
setting in NSF listing.
All booster heaters are rated at 100% of the capacity of the dish machines as recommended by the National Sanitation Foundation.
Where make-up water for wash tank is provided from final rinse supply, chart recommendations are based upon this additional
demand (not over 2 GPM) as required by NSF.
NOTE: All sizings shown are that of the dish machine manufacturers. Hatco Corporation is not responsible for incorrect sizing
Electrical Knockouts left side
and bottom—3/4", 1", and 1-1/4"
5-5/16"
(134 mm)
Top View
Side View
Rear View
* Knockout is located
on the bottom of unit.
SPECIFICATIONS
Dimensions — Imperial “S” Series
Form No. EBOOSTERM-0816
Dimensions — Compact “C” Series 4 to 18 kW
15
SPECIFICATIONS
Side View
Top ViewFront View
11-3/4"
(298 mm)
1-1/4"
(31 mm)
1-3/8"
(34 mm)
Knockout*
Inlet
Outlet
T/P
Relief
Valve
18-1/2"
(469 mm)
9-1/8"
(232 mm)
8-1/8"
(206 mm)
12-7/8"
(327 mm)
5-1/2"
(139 mm)
4-3/8"
(138 mm)
3-1/8"
(79 mm)
T/P
Relief
Valve
Electrical Knockouts—
1/2", 3/4", and 1"
Front Side
* Knockout is located
on the bottom of unit.
Side View
Top View
Rear View
Knockout*
I
nlet
Outlet
T
/P Relief
Valve
1
8"
(
457 mm)
3-3/8"
(85 mm)
3" (75 mm)
18-1/16"
(458 mm)
6"
(152 mm)
7-7/8"
(200 mm)
2-1/16"
(54 mm)
15-3/16"
(387 mm)
24"
(610 mm)
16-1/8"
(410 mm)
2-3/4"
(69 mm)
Electrical Knockouts left side
and bottom—1-1/2" and 2"
5-5/16”
(134 mm)
* Knockout is located
on the bottom of unit.
English
Dimensions — Compact “C” Series 24 to 57 kW
Dimensions — Mini-Compact “MC” Series
16
Form No. EBOOSTERM-0816
English
NOTICE
WARNING
Weld slide rail
to bottom of
dish table
Fasten slide
brackets to booster
heater sides
WARNING
INSTALLATION
General
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.
ELECTRIC SHOCK HAZARD:
• Unit must be installed by qualified, trained installers.
Installation must conform to all local electrical and
plumbing codes. Installation by unqualified personnel
will void the unit warranty and may lead to electric
shock or burn, as well as damage to unit and/or its
surroundings. Check with local plumbing and electrical
inspectors for proper procedures and codes.
• 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
heater. Doing so can cause temperature and moisture
build-up resulting in premature failure and electrical
shock.
EXPLOSION HAZARD: Do not store or use gasoline or
other flammable vapors or liquids in the vicinity of this or
any other appliance.
Install booster water heater as close as possible to a
commercial dish machine. Employ re-circulation if distance
between water heater and dish machine exceeds National
Sanitation Foundation (NSF) specifications of five (5) linear
feet (1524 mm).
Install booster water heater in a horizontal position with the
base parallel to the floor and the inlet connection at the
lowest point. Improper installation could create an unsafe
condition.
1. Remove the unit from the box.
NOTE: To prevent delay in obtaining warranty coverage,
complete online warranty registration. See the
IMPORTANT OWNER INFORMATION section for
details.
2. Remove tape and protective packaging from all surfaces
of unit.
3. If unit is equipped with
legs, carefully lay unit
on its side and install
the four legs.
4. Place the unit in the appropriate location.
• The location must have a solid foundation along with
being clean and dry.
• Adequate front clearance is required to allow for
accessibility to the control compartment. Hatco
recommends the side clearance be at least 2" (51 mm).
• Location must have adequate clearance to allow for
inspection, testing or replacement of pressure and/or
temperature relief valve.
• Install the booster heater as close as possible to the
commercial dish machine for efficient operation.
Make sure the dishtable is strong enough to support the
weight of the booster heater and water when installing with
slide mounting brackets.
Follow standard welding safety and operational procedures
when attaching sliderails to bottom of dishtable.
5. Install unit under dishtable using mounting slide brackets,
if applicable (Compact Series only).
a. Weld slide rails to bottom of dishtable.
b. Using Hatco slide brackets as a template, drill 1/8"
(3 mm) holes into the sides of the heater jacket.
c. Attach slide brackets to sides of heater with supplied
screws.
d. Slide heater onto slide rails under dishtable.
Hanging Support
Do not lay unit on the side with the control panel. Damage
to the unit could occur.
NOTE: If unit is not level, use an adjustable wrench to adjust the
Form No. EBOOSTERM-0816
foot of each leg until unit is level. Each leg is adjustable
from 6" (152 mm) to 7" (178 mm).
Compact Series Heater Mounted to Dishtable
17
INSTALLATION
WARNING
CAUTION
NOTICE
CAUTION
English
Plumbing Installation
Do not connect booster water heaters to domestic
(consumer) dish machines or other domestic utilized
equipment. This booster may damage domestic equipment.
Do not connect an expansion tank of any type to booster
heater water lines.
Use only copper plumbing material. Non-copper plumbing
material may create an unsafe condition.
Refer to the BOOSTER HEATER SIZING CHART in this
manual to ensure proper sizing and avoid personal injury
and/or damage to the booster heater.
Do not connect booster 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.
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 Compact
Series Booster 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 water. Deionized water will shorten
the life of water reservoir and heating element.
NOTE: Product failure caused by liming or sediment buildup is
not covered under warranty.
NOTE: A 3/4" union and a drain valve are required for easy
servicing.
NOTE: An optional flow restrictor (P/N 03.02.074.00) is
available for installation on the water inlet line.
NOTE: Some dish machines require two booster heaters to be
plumbed in series (not parallel) to meet the demand. To
ensure proper operation, a 30°F (17°C) temperature
differential must be maintained between the inlet and
outlet of each booster heater.
Inlet
Use the following procedure to install the inlet assembly. Refer
to the appropriate “Plumbing Connections” diagram in this
section for more information.
1. Connect the booster water inlet to a copper hot water
supply line from a normal water heater.
• Water temperature from the water heater should be
115°–145°F (46°–63°C) and should not exceed 155°F(68°C). Minimum temperature differential between inlet
and outlet should never be less than 30°F (17°C).
NOTE: Refer to BOOSTER HEATER SIZING CHART for
application information.
NOTE: The red mark on the inlet and outlet water pipes of
Compact series units must remain in the top most
position.
2. Install a shut-off valve (a full opening gate or ball type).
3. Install one of the temperature/pressure gauges.
• When installing the temperature/pressure gauge, the
temperature sensing element must be in the water
stream and the gauge must be mounted upright.
NOTE: Tighten gauge during installation by turning the 1/2"
brass nut only. DO NOT turn the face of the gauge.
Turning the face will cause inaccurate measurements.
Hatco requires that two temperature/pressure gauges
(Hatco P/N 03.01.003.00) be installed to ensure proper
operation. Install one in the supply line before the pressure
reducing valve and one in the outlet line as close to the
booster heater as possible. This provides a visual check
of the water temperature and pressure before and after the
water heater.
Temperature/Pressure Gauge
NOTE: If a check valve is installed and cannot be removed, install
a back pressure relief valve (P/N 03.02.039.00) set at
125 psi (862 kPa) on the incoming line between the
pressure reducing valve and the inlet to the booster
heater. Discharge must be to open site drain.
18
Form No. EBOOSTERM-0816
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