Hatco DHWBI-S, DHWBI-S3, DHWBI-S4, DHWBI-S2 Installation And Operating Manual

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Built-In Modular Slim Dry Heated Wells

Puits chauffants secs modulaires

allongés intégrés

DHWBI-S Series • Série DHWBI-S

Installation and Operating Manual

Manuel d’installation et d’utilisation

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.

P/N 07.04.852.00 © 2019 Hatco Corporation

WARNING

English = p 2

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.

AVERTISSEMENT

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 15

CAUTION

CONTENTS

English

Important Owner Information .............................................. 2

Introduction ...........................................................................2

Important Safety Information .............................................. 3

Model Description ................................................................4

Model Designation ...............................................................4

Specifications ....................................................................... 5

Plug Configurations ............................................................. 5

Electrical Rating Chart ......................................................... 5

Dimensions .......................................................................... 5

Installation .............................................................................6

General ................................................................................ 6

Installing the Unit ................................................................. 7

Countertop Cutout Dimensions ...........................................7

Installing a Remote Control Enclosure ................................ 8

Control Enclosure Cutout Dimensions ................................8

IMPORTANT OWNER INFORMATION

Record the model number, serial number (specification label
located on the back of the unit), voltage, and purchase date
of the unit in the spaces below. Please have this information
available when calling Hatco for service assistance.

Model No. ________________________________________

Serial No. _________________________________________

Voltage ___________________________________________

Operation ...............................................................................9

General ................................................................................ 9

Maintenance ........................................................................ 10

General .............................................................................. 10

Daily Cleaning ...................................................................10

Monthly Cleaning ............................................................... 10

Troubleshooting Guide ...................................................... 11

Options and Accessories .................................................. 12

Limited Warranty ................................................................14

Authorized Parts Distributors ........................... Back Cover

Business
Hours: 7:00 am to 5:00 pm Monday–Friday,
Central Time (CT)

(Summer Hours: June to September—
7:00 am to 5:00 pm Monday–Thursday
7:00 am to 4:00 pm Friday)

Telephone: [phone]
E-mail: [e-mail]

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 Support pull-down menu,
and click on “Warranty”.

INTRODUCTION

Hatco Built-In Modular Slim Dry Heated Wells are specially
designed to hold heated foods at safe serving temperatures.
Slim dry wells are available in a variety of pan combinations —
all heated with a long-life heating element that is covered by a
2 year part warranty. The metal sheathed heating element is
controlled by a remote thermostat. Heat is distributed evenly
throughout the heavy gauge stainless steel construction to
ensure hot food. The design allows for easy maintenance and
durable performance. All units are UL approved and equipped
with a remote control enclosure.

Units are equipped with EZ lock mounting hardware. Controls
include individual lighted power switches and thermostat
controls that retain temperature settings. One year parts and
on-site labor warranty is standard.

Hatco Built-In Modular Slim Dry Heated Wells are a product
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.

24 Hour 7 Day Parts and Service
Assistance available in the United States
and Canada by calling 800-558-0607.

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 Built-In Modular Slim Dry Heated Wells.
Hatco recommends all installation, operating, and safety
instructions appearing in this manual be read prior to installation
or operation of a unit.

Safety information that appears in this manual is identified by
the following signal word panels:

WARNING

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

NOTICE is used to address practices not related to
personal injury.

2

Form No. DHWBISM-0519

English

WARNING

CAUTION

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:

• Turn power switch OFF, disconnect unit from power
source, and allow unit to cool before performing any
maintenance or cleaning.

• DO NOT submerge or saturate with water. Unit is not
waterproof. Do not operate if unit has been submerged
or saturated with water.

• Unit is not weatherproof. Locate unit indoors where
ambient air temperature is a minimum of 70°F (21°C)
and a maximum of 85°F (29°C).

• Remote control enclosure must be mounted on vertical
wall and installed in vertical position. Mounting remote
control enclosure in horizontal position may result in
collection of liquids and lead to electric shock.

• Do not use unit to melt or hold ice. Doing so may
cause condensation, creating an electrical hazard and
causing personal injury and/or damage to unit. Damage
caused by condensation is not covered by warranty.

• Do not clean unit when it is energized or hot.

• This unit is not “jet-proof” construction. Do not use
jet-clean spray to clean this unit.

• 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.

FIRE HAZARD:

 • Installunitwithaminimumof4-1/2″(114mm)ofspace

from bottom of unit to all surfaces. If safe distances are
not maintained, combustion could occur.

• Unit must be installed using ribbon putty gasket
between the unit and the installation surface per
installation instructions (refer to the Installation
section of this manual).

• Do not use flammable cleaning solutions to clean this
unit.

This unit must be installed by qualified, trained installers.
Installation must conform to all local electrical codes.
Check with local electrical inspectors for proper
procedures and codes.

This unit is not intended for use by children or persons
with reduced physical, sensory, or mental capabilities.
Ensure proper supervision of children and keep them
away from unit.

Make sure all operators have been instructed on the safe
and proper use of unit.

Make sure food product has been heated to the proper
food-safe temperature before placing in the unit. Failure
to heat food product properly may result in serious health
risks. This unit is for holding pre-heated food product only.

Hatco Corporation is not responsible for actual food
product serving temperature. It is the responsibility of the
user to ensure that food product is held and served at a
safe temperature.

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:

• Some exterior surfaces on unit will get hot. Use caution
when touching these areas.

• DO NOT clean unit while it contains any food product.
Remove food product and allow unit to cool completely
before cleaning.

Locate unit at proper counter height in an area that is
convenient for use. The location should be strong enough
to support the weight of unit and contents.

NOTICE

Units are voltage-specific. Refer to specification label for
electrical requirements before beginning installation.

Standard and approved manufacturing oils may smoke up
to 30 minutes during initial startup. This is a temporary
condition. Operate unit without food product until smoke
dissipates.

Do not locate unit in an area subject to excessive
temperatures or grease from grills, fryers, etc. Excessive
temperatures could cause damage to unit.

Unit is designed and recommended for use in or on
metallic countertops. Damage to any countertop material
is not covered under the Hatco warranty. For other
surfaces, verify with manufacturer that material is suitable
for prolonged temperatures up to 200°F (93°C).

Do not use steel wool or metal scouring pad for cleaning.
Steel wool will scratch the finish.

Use non-abrasive cleaners and cloths only. Abrasive
cleaners and cloths could scratch finish of unit, marring its
appearance and making it susceptible to soil accumulation.

Do not use harsh chemicals such as bleach, cleaners
containing bleach, or oven cleaners to clean this unit.
Damage caused by chemicals is not covered by warranty.

Do not locate unit in area with excessive air movement
around unit. Avoid areas that may be subject to active air
movements or currents (i.e., near exhaust fans/hoods, air
conditioning ducts, and exterior doors).

Form No. DHWBISM-0519

3

MODEL DESCRIPTION

Full-Size Pan Capacity

Insulated Top Mount

D H W B I - S x

Dry Heated Well

Built-In

Slim

DHWBI-S4

DHWBI-S3

DHWBI-S2

English

All Models

All Built-In Modular Slim Dry Heated Well units are reliable
and versatile. Each unit has an insulated, stainless steel
and aluminized steel housing with a metal sheathed heating
element. The heating element is controlled with a thermostatic
temperature control and a lighted POWER ON/OFF switch
housed in a remote control enclosure. The air heating/circulation
system provides a consistent temperature in each well. The

remote control enclosure is connected to the unit with a 6′ (1829

mm) flexible conduit assembly. Built-In Modular Slim Dry Heated
Wells can come with a power cord or be hardwired directly to a
power source for a secure and cord-free serving area.

All models are equipped with EZ locking hardware and designed
to be mounted to the topside of a non-combustible countertop.
Built-In Modular Slim Dry Heated Wells are designed,
manufactured, and tested to maintain safe food holding
temperatures.

DHWBI-S2, -S3, and -S4 Models

DHWBI-S models are capable of holding a variety of pan
combinations in each heated well.

• One full size pan

• Two 1/2-size pans with adapter bars.

• Three 1/3-size pans with adapter bars.

• Six 1/6-size pans with adapter bars.

• Two 7 quart round pans with adapter top.

• Three 4 quart round pans with adapter top.
Food Pans, Pan Support Bars, and Adapter Tops sold

separately (refer to the OPTIONS AND ACCESSORIES section
in this manual).

IMPORTANT NOTE

Remote control enclosures must be mounted
on the front of the unit to ensure the controls
correspond with the correct wells (the front of the
unit is the side the conduit enters under the unit).
Remote control enclosures cannot be rewired and
must be installed in the proper location.

MODEL DESIGNATION

NOTE: Split controls available also. All models for Canada require

controls in a single control enclosure.

4

Form No. DHWBISM-0519

English

WARNING

NEMA 5-15P NEMA 5-20P

NEMA 5-30P

NEMA L14-20P

Side View

Front View

A

5/16″
(8 mm)
Flange

B

C

SPECIFICATIONS

Plug Configurations

Some units are supplied from the factory with an electrical
cord and plug installed. Plugs are supplied according to the
application (not available with split controls). Refer to the
OPTIONS AND ACCESSORIES section for more information.

ELECTRIC SHOCK HAZARD: Plug unit into a properly
grounded electrical receptacle of the correct voltage,
size, and plug configuration. If plug and receptacle do not
match, contact a qualified electrician to determine and
install the proper voltage and size electrical receptacle.

NOTE: Specification label located on side of the unit. See

label for serial number and verification of unit electrical
information.

NOTE: Receptacle not supplied by Hatco.

Plug Configurations

Electrical Rating Chart

Plug Configuration

Model Voltage Hertz Watts Amps

DHWBI-S2 120

120/208–240 8.0 NEMA L14-20P

DHWBI-S3 120

120/208–240 16.0 NEMA L14-20P

DHWBI-S4 120/208–240 60 3840 16.0 NEMA L14-20P 172 lbs. (78 kg)

NOTE: Shipping Weights are estimated.

60 1920

60 2880

16.0 NEMA 5-20P

24.0 NEMA 5-30P

(optional) Shipping Weight

93 lbs. (42 kg)

133 lbs. (60 kg)

Dimensions

Width

Model

DHWBI-S2

DHWBI-S3

DHWBI-S4

* Units with over-sized bezel option have a Depth (B) of 27″ (686 mm).

(A)

45-1/2″

(1156 mm)

67-1/2″

(1715 mm)

89-1/2″

(2273 mm)

Depth

(B) *

15-5/8″

(397 mm)

15-5/8″

(397 mm)

15-5/8″

(397 mm)

Height

(C)

12-11/16″
(321 mm)

12-11/16″
(321 mm)

12-11/16″
(321 mm)

Form No. DHWBISM-0519

5

INSTALLATION

WARNING

CAUTION

English

General

Built-In Modular Slim Dry Heated Wells are shipped from the
factory with most components assembled and ready for use.
Use the following procedures to install the unit.

NOTE: All Built-In Modular Slim Dry Heated Wells require the

control enclosure to be remote mounted.

NOTE: Make sure the installation location provides enough

room for the remote mounted control enclosure and
electrical connections.

ELECTRIC SHOCK HAZARD: Unit is not weatherproof.
Locate unit indoors where ambient air temperature is a
minimum of 70°F (21°C) and a maximum of 85°F (29°C).

FIRE HAZARD:

 • Installunitwithaminimumof4-1/2″(114mm)ofspace

from bottom of unit to all surfaces. If safe distances are
not maintained, combustion could occur.

• Unit must be installed using ribbon putty gasket
between the unit and the installation surface per
installation instructions.

This unit must be installed by qualified, trained installers.
Installation must conform to all local electrical and
plumbing codes. Check with local plumbing and electrical
inspectors for proper procedures and codes.

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.

NOTE: A qualified electrician should connect the unit(s) to a

power source.

3. Install the unit in the desired location. Refer to the
“Installing the Unit” procedure in this section.

4. Provide a catch pan for the overflow drain pipe on the
bottom of the unit. DO NOT allow drained liquids to

contact the conduit.

• The 3/4″ overflow drain pipe also can be connected to

an on-site drain line. Consult a licensed plumber for
proper drain installation that conforms to local codes.

NOTE: Liquid will drain only if spilled into well.

Locate unit at proper counter height in an area that is
convenient for use. The location should be strong enough
to support the weight of unit and contents.

NOTICE

Do not locate unit in an area subject to excessive
temperatures or grease from grills, fryers, etc. Excessive
temperatures could cause damage to the unit.

Unit is designed and recommended for use in or on
metallic countertops. Damage to any countertop material
is not covered under the Hatco warranty. For other
surfaces, verify with manufacturer that material is suitable
for prolonged temperatures up to 200°F (93°C).

6

Form No. DHWBISM-0519

English

Ribbon Putty Gasket

Cutout edge of countertop.

Countertop

EZ Locking
Tab

Countertop

B

A

Countertop

INSTALLATION

Installing the Unit

NOTE: Cut the opening for both the unit and the control

enclosure(s) before placing unit into the countertop
opening.

1. Cut the appropriate opening in the countertop. Refer to the
“Countertop Cutout” chart in this section.

2. Cut the appropriate opening for the control enclosure(s).
Refer to the “Control Enclosure Cutout Dimensions” chart
in this section.

3. Place ribbon putty gasket around the cutout edge of the
countertop. Make sure the ribbon putty gasket overhangs
the cutout edge or seal unit with silicone adhesive.

NOTE: A roll of ribbon putty gasket material is supplied with the

unit.

Installing Ribbon Putty Gasket

4. Place the unit into the countertop opening.

5. Using a screwdriver, rotate the unit’s EZ locking tabs
outward to secure the unit to the underside of the
countertop. Rotate as many tabs as needed to secure the
unit to the countertop.

Countertop Cutout Dimensions

Model Width (A) Depth (B)

DHWBI-S2

DHWBI-S3

DHWBI-S4

NOTE: Required minimum clearance below countertop cutout

is 17-3/16″ (437 mm).

44″ – 44-1/8″

(1116 – 1122 mm)

66″ – 66-1/8″

(1675 – 1680 mm)

88″ – 88-1/8″

(2234 – 2239 mm)

Countertop Cutout Dimensions

14-1/16″ – 14-1/4″

(357 – 362 mm)

14-1/16″ – 14-1/4″

(357 – 362 mm)

14-1/16″ – 14-1/4″

(357 – 362 mm)

NOTE: The Hatco EZ locking tabs work on countertops

6. Carefully trim and remove the excess ribbon putty material

7. Install the control enclosure(s). Refer to the “Installing a

Form No. DHWBISM-0519

EZ Locking Tabs

that have a maximum thickness of 3/16″ (5 mm).
For countertops 3/16″–2″ (5–51 mm) thick, use an

appropriate number of accessory thick counter adapter
brackets (HWB-MNT-REC ). Refer to the OPTIONS
AND ACCESSORIES section for Adapter Bracket
installation information.

from around the unit.

Remote Control Enclosure” procedure in this section.

7

WARNING

Typical knockout
locations for power
source connection.

Control

Enclosure

INSTALLATION

A

C

D

B

Left Side View –

Control Enclosure

Silicone Sealant

7/16″

(11 mm)

3/8″

(9 mm)

6-1/2″

(165 mm)

1-1/2″

(38 mm)

English

Installing a Remote Control Enclosure

Remote control enclosures must be mounted on the front of
the unit to ensure the controls correspond with the correct wells
(the front of the unit is the side the conduit enters under the
unit). Remote control enclosures cannot be rewired and must
be installed in the proper location.

NOTE: A qualified electrician should connect the unit(s) to a

power source.

ELECTRIC SHOCK HAZARD: Remote control enclosure
must be mounted on vertical wall and installed in vertical
position. Mounting remote control enclosure in horizontal
position may result in collection of liquids and lead to
electric shock.

1. Cut and drill the appropriate holes in the mounting surface.
Refer to the “Control Enclosure Cutout Dimensions” chart
below for the cutout dimensions for each control enclosure.

• The cutout depth required for all control enclosures is

6-1/2″ (165 mm).

• Make sure to have enough space inside the cutout if

installing with conduit on the side of the control enclosure.

• For units with two control enclosures: Each enclosure

cutout size may be different (see chart below).

2. Remove the trim cover from the control enclosure.

3. Position the control enclosure into the opening through the
backside.

4. Secure the control enclosure to the mounting surface
using screws (#8 sheet metal screw supplied).

5. Connect the proper power
source to the mounted
remote control enclosure.
Wiring must be fixed a

minimum of 4″ (102 mm)

from bottom of well(s).

6. Apply a 1/4″ (6 mm) bead

of NSF-approved silicone
sealant where the trim cover
will contact the cabinet surface. Refer to the “Control
Enclosure Cutout and Screw Hole Dimensions” illustration
for more information.

7. Reinstall the trim cover on the control enclosure and
secure in position using the four trim cover screws. Make
sure to embed the trim cover edge into the silicone.

NOTE: Standard UL approved units are equipped with a

72″ (1829 mm) flexible conduit connected to the remote

control enclosure.

Control Enclosure Cutout Dimensions

Model

DHWBI-S2

DHWBI-S3

DHWBI-S4

Opening Dimension

Width (A)

10-5/16″

(262 mm)

14-5/16″

(364 mm)

18-5/16″

(465 mm)

Opening Dimension

Height (B)

Control Enclosure Cutout and Screw Hole Dimensions

4-3/4″

(119 mm)

4-3/4″

(119 mm)

4-3/4″

(119 mm)

Screw Hole Dimension

Width (C)

10-9/16″

(269 mm)

14-9/16″

(370 mm)

18-9/16″

(472 mm)

IMPORTANT NOTE:

Make sure the installation location
provides enough room for electrical
connections to the control enclosure.
Follow local and national plumbing
and electrical codes.

Screw Hole Dimension

Height (D)

2-1/2″

(64 mm)

2-1/2″

(64 mm)

2-1/2″

(64 mm)

8

Form No. DHWBISM-0519

English

WARNING

CAUTION

WARNING

Temperature Control
Knob

Power I/O (on/off)

Switch

OPERATION

General

Use the following procedures to operate the Built-In Modular
Slim Dry Heated Wells.

Read all safety messages in the Important Safety
Information section before operating this equipment.

ELECTRIC SHOCK HAZARD: Do not use unit to melt or
hold ice. Doing so may cause condensation, creating
an electrical hazard and causing personal injury and/or
damage to unit. Damage caused by condensation is not
covered by warranty.

NOTICE

Standard and approved manufacturing oils may smoke up
to 30 minutes during initial startup. This is a temporary
condition. Operate unit without food product until smoke
dissipates.

Startup

1. Prepare the wells for operation.

2. Place an empty pan in each well or cover each well with
a lid. This step is recommended to speed up pre-heating
and reach operating temperature.

3. Move the Power I/O (on/off) switch(es) to the I (on)
position. The indicator light on each switch glows when it
is on.

Food Warming

Place the appropriate size food pans with pre-heated food
product into the Slim Dry Heated Wells.

• Always use a food pan. Do not place food directly into the
heated well.

• Stir thick food items frequently to keep food heated
uniformly.

• Keep pans covered to maintain food quality and
temperature.

Shutdown

1. Move the Power I/O (on/off) switches to the O (off) position.
The indicator light on the switches will shut off.

NOTE: If a catch pan is used underneath the drain fitting, make

sure the catch pan is emptied after each spill to prevent
overflowing.

BURN HAZARD: Some exterior surfaces on the unit will
get hot. Use caution when touching these areas.

4. Turn the Temperature Control Knob(s) to the desired
setting.

Hatco Corporation is not responsible for actual food
product serving temperature. It is the responsibility of the
user to ensure that food product is held and served at a
safe temperature.

5. Allow the unit to preheat for approximately 30 minutes.

Form No. DHWBISM-0519

Control Enclosure

9