A.J.Antunes Roundup DCH-100 User manual

P/N 1010772 Rev. D 12/13
DISPLAY CABINETS
HEATED
Models DCH-100/200/300
DCH-120/220/320
Owner’s Manual
MANUFACTURING
NUMBERS:
9500500
9500510
9500512
9500520
9500530
9500531
9500532
9500533
9500534
9500536
9500538
9500540
9500550
9500551
9500552
9500553
9500554
9500556
A
S
D
L
I
S
T
E
CM
O
I
N
N
I
T
A
T
C
T
I
S
L
US
E
D
D
L
I
S
T
E
C US
I
N
T
E
R
T
E
K

DISPLAY CABINET HEATED
2P/N 1010772 Rev. D 12/13
General
The Roundup Display Case attractively displays
your food and maintains it at ready-to-eat tempera-
ture. A convection fan (some models) circulates heat
throughout the entire display cabinet while a digital
temperature control maintains a constant temperature.
Humidity water trays (some models) extend food hold-
ing times by reducing moisture loss.
Models DCH-100, DCH-200, and DCH-300 are pri-
marily for meats and poultry products.
Models DCH-120, DCH-220, and DCH-320 are pri-
marily designed for bread products.
This manual provides the safety, installation and oper-
ating procedures for the unit. We recommend that all
information contained in this manual be read prior to
installing and operating the unit.
This unit is manufactured from the finest materials
available and is assembled to Roundup’s strict quality
standards. This unit has been tested at the factory to
ensure dependable trouble-free operation.
OWNER INFORMATION
TABLE OF CONTENTS
IMPORTANT! Keep these instructions for future reference.
If the unit changes ownership, be sure this manual accompanies the equipment.
Warranty Information
Please read the full text of the Limited Warranty in this
manual.
If the unit arrives damaged, contact the carrier
immediately and file a damage claim with them.
Save all packing materials when filing a claim. Freight
damage claims are the responsibility of the purchaser
and are not covered under warranty.
The warranty does not extend to:
• Damages caused in shipment or damage as
result of improper use.
• Installation of electrical service.
• Normal maintenance as outlined in this manual.
• Malfunction resulting from improper maintenance.
• Damage caused by abuse or careless handling.
• Damage from moisture into electrical
components.
• Damage from tampering with, removal of, or
changing any preset control or safety device.
Owner Information .....................................................2
General......................................................................2
Warranty Information .................................................2
Service/Technical Assistance ....................................3
Important Safety Information ....................................3
Warnings Regarding Handling of Glass ..................5
Specifications .............................................................6
Electrical Ratings.......................................................6
Electrical Cord & Plug Configurations .......................6
Model Designation.....................................................6
Temperature Ranges ................................................7
Dimensions................................................................7
Capacities .................................................................7
Installation...................................................................8
Unpacking..................................................................8
Operating & Programming ........................................9
Operations and Programming ...................................9
Maintenance..............................................................10
Cleaning ..................................................................10
Parts Replacement..................................................10
Technical Theory of Operation ................................12
Display Codes .........................................................13
Troubleshooting .......................................................14
Replacement Parts – DCH-100/120.........................15
Replacement Parts – DCH-200/220.........................17
Replacement parts – DCH-300/320 .........................20
Wiring Diagrams.......................................................22
LIMITED WARRANTY ...............................Back Cover

3
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
Throughout this manual, you will find the following safety words and symbols that signify important safety issues with
regards to operating or maintaining the equipment.
WARNING
GENERAL WARNING. Indicates informa-
tion important to the proper operation of
the equipment. Failure to observe may
result in damage to the equipment and/or
severe bodily injury or death.
WARNING
ELECTRICAL WARNING. Indicates infor-
mation relating to possible shock hazard.
Failure to observe may result in damage
to the equipment and/or severe bodily
injury or death.
CAUTION
GENERAL CAUTION. Indicates informa-
tion important to the proper operation of
the equipment. Failure to observe may
result in damage to the equipment.
WARNING
HOT SURFACE WARNING. Indicates
information important to the handling of
equipment and parts. Failure to observe
caution could result in personal injury.
IMPORTANT SAFETY INFORMATION
Service/Technical Assistance
If you experience any problems with the installation
or operation of your unit, contact your local Roundup
Authorized Service Agency.
Fill in the information below and have it handy
when calling your authorized service agency for
assistance. The serial number is on the specification
plate located on the unit.
Purchased From:
Date of Purchase:
Model No.:
Serial No.:
Mfg. No.:
OWNER INFORMATION (continued)
Refer to the service agency directory included with
your unit.
Authorized Service Agency
Name:
Phone No.:
Address:
Use only genuine Roundup replacement parts in
this unit. Use of replacement parts other than those
supplied by the manufacturer will void the warranty.
Your Authorized Service Agency has been factory
trained and has a complete supply of parts for this unit.
You may also contact the factory at 1-877-392-7854
in the U.S. or 630-784-1000 outside the U.S. if you
have trouble locating your local authorized service
agency.
IMPORTANT
A.J. Antunes & Co. reserves the right to change specifications and product design without
notice. Such revisions do not entitle the buyer to corresponding changes, improvements, addi-
tions or replacements for previously purchased equipment.

DISPLAY CABINET HEATED
4P/N 1010772 Rev. D 12/13
In addition to the warnings and cautions in this manual,
use the following guidelines for safe operation of the
unit:
• Read all instructions before using equipment.
• For your safety, the equipment is furnished with
a properly grounded cord connector. Do not
attempt to defeat the grounded connector.
• Install or locate the equipment only for its intend-
ed use as described in this manual.
• Do not operate this equipment if it has a dam-
aged cord or plug, if it is not working properly, or
if it has been damaged or dropped.
• This equipment should be serviced by qualified
personnel only. Contact the nearest Roundup
authorized service facility for adjustment or repair.
• Do not block or cover any openings on the unit.
• Keep cord away from heated surfaces and do not
allow cord to hang over edge of table or counter.
The following warnings and cautions appear
throughout this manual and should be carefully
observed:
• WARNING ELECTRICAL SHOCK HAZARD.
FAILURE TO FOLLOW THESE INSTRUCTIONS
COULD RESULT IN SERIOUS INJURY OR
DEATH.
• Turn the unit off, disconnect the power
source, and allow unit to cool down before
performing any service or maintenance on the
unit.
• The procedures in this chapter may include
the use of chemical products. These chemi-
cal products will be highlighted with bold
face letters followed by the abbreviated HCS
(Hazard Communication Standard). See
Hazard Communication Standard manual for
the appropriated Material Safety Data Sheets
(MSDS).
• The unit should be grounded according to
local electrical codes to prevent the possibil-
ity of electrical shock. It requires a grounded
receptacle with separate electrical lines, pro-
tected by fuses, or a circuit breaker of the
proper rating:
- Electrical ground is required on this appli-
ance.
- Do not modify the power supply cord plug.
If it does not fit the outlet, have a proper
outlet installed by a qualified electrician.
- Do not use an extension cord with this
appliance.
- Check with a qualified electrician if you
are in doubt as to whether the appliance is
properly grounded.
• All electrical connections must be in accor-
dance with local electrical codes and any
other applicable codes.
• This equipment is to be installed to com-
ply with the basic plumbing code of the
Building Officials and Code Administration,
Inc. (BOCA) and the Food Service Sanitation
Manual of the Food and Drug Administration
(FDA).
• Do not immerse cord or plug in water.
• Do not clean this appliance with a water jet.
• Do not use a sanitizing solution or abrasive
materials. The use of these may cause dam-
age to the stainless steel finish.
• Do not use corrosive chemicals in this equip-
ment.
• Chlorides or phosphates in cleansing agents
(e.g. bleach, sanitizers, degreasers, or deter-
gents) could cause permanent damage to
stainless steel equipment. The damage is
usually in the form of discoloration, dulling
of metal surface finish, pits, voids, holes, or
cracks. This damage is permanent and not
covered by warranty.
• The following tips are recommended for main-
tenance of your stainless steel equipment:
- Always use soft, damp cloth for cleaning,
rinse with clear water and wipe dry. When
required, always rub in direction of metal
polish lines.
- Routine cleaning should be done daily
using soap, ammonia detergent, and
water.
- Stains and spots should be sponged
using a vinegar solution as required.
- Finger marks and smears should be
rubbed off using soap and water.
- Hard water spots should be sponged
using a vinegar solution.
IMPORTANT SAFETY INFORMATION (continued)

5
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
Heated Display Case (DCH Models)
Glass Warnings
DO NOT operate the unit without the top rubber Glass Retainers
(P/N 0504070), Top Cap Assembly (RH) (P/N 0011717), Top
Cap Assembly (LH) (P/N 0011718), and lower nylon Side Glass
Stoppers (P/N 2180179) in place.
DO NOT scratch, chip, or nick the glass.
DO NOT place any metal objects in contact with the glass (mer-
chandise holders, signs, etc.).
DO NOT transfer coins over the unit.
DO NOT use the glass as a serving counter.
When cleaning, handling, or removing the glass, make
sure that the glass is cool (room temperature).
USE approved cleaners marketed for glass cleaning only.
USE a flat surface covered with a soft cloth to place the glass
on, if the glass is removed.
USE a clean, soft cloth when cleaning the glass. Do not use
paper towels.
USE light pressure when wiping/cleaning the glass.
MAKE SURE that the top cover glass does not touch the edge
of the side glass.
MAKE SURE to replace scratched, chipped, nicked, cracked, or
broken glass.
Please follow the Safety Instructions below in order to
reduce the chance of damaged/broken glass.
Warning: Mishandling this product or failure to follow
these instructions may result in shattering glass.
WARNINGS REGARDING HANDLING OF GLASS

DISPLAY CABINET HEATED
6P/N 1010772 Rev. D 12/13
SPECIFICATIONS
Electrical Ratings
CAUTION
All electrical connections must be in accordance
with local electrical codes and any other appli-
cable codes.
WARNING
ELECTRICAL SHOCK HAZARD. FAILURE TO
FOLLOW THE INSTRUCTIONS IN THIS MANUAL
COULD RESULT IN SERIOUS INJURY OR DEATH.
• Electrical ground is required on this appliance.
• Do not modify the power supply cord plug. If
it does not fit the outlet, have a proper outlet
installed by a qualified electrician.
• Do not use an extension cord with this appli-
ance.
• Check with a qualified electrician if you are in
doubt as to whether the appliance is properly
grounded.
Model Designation
TYPE OF POWER CORD
H = HARMONIZED
C = COMMERCIAL
TYPE OF PLUG
C = CEE 7/7 Schuko
F = NEMA 5-15P
T = NEMA 5-20P
DCH-100 XX
DCH-120
DCH-200
DCH-220
DCH-300
DCH-320
Model and
Mfg. #
Voltage Watts Amps Hertz
DCH-100CF
9500500
120 1550 12.9 50/60
DCH-120CF
9500510
120 1550 12.9 50/60
DCH-120CT
9500512
120 1550 12.9 50/60
DCH-200CT
9500520
120 1800 15.0 50/60
DCH-220CT
9500530
120 1800 15.0 50/60
DCH-220CT
9500531
120 1800 15.0 50/60
DCH-220CT
9500532
120 1800 15.0 50/60
DCH-220
9500533
International
Unit
200-240 2050 9.3 -
8.5
50/60
DCH-220CT
9500534
120 1800 15.0 50/60
DCH-220HC
9500536
220-240 2000 8.7 50/60
DCH-220CT
9500538
120 1800 15.0 50/60
DCH-300CT
9500540
120 1800 15.0 50/60
DCH-320CT
9500550
120 1800 15.0 50/60
DCH-320CT
9500551
120 1800 15.0 50/60
DCH-320CT
9500552
120 1800 15.0 50/50
DCH-320
9500553
International
Unit
200-240 2050 9.3 -
8.5
50/60
DCH-320CT
9500554
120 1800 15.0 50/60
DCH-320HC
9500556
220-240 2800 12.2 50/60
Electrical Cord & Plug Configurations
Letter
Code*
Description Configuration
C
H
Commercial Cord
Harmonized Cord
(H)C*** CEE 7/7, 16 Amp.,
250 VAC (Assembly
Only).
(C)F** 5-15P, 15 Amp., 120
VAC., Non – Locking
(Assembly Only).
(C)T** 5–20P, 20 Amp., 120
VAC., Non – Locking
(Assembly Only).
* Used in Model Designation
** Indicates that the plug comes with a Commercial Cord.
*** Indicates that the plug comes with a Harmonized Cord.
WHT BLK
GRN
WHT BLK
GRN

7
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
Capacities
DCH-100/DCH-120
• One 2-1/2” (63.5 mm) deep full size steam table pan.
• One water tray (some models) at 4 quarts (3.8 liters).
• One Crumb Tray (some models).
DCH-200/DCH-220
• Two 2-1/2” (63.5 mm) deep full size steam table pans.
• Two water trays (some models) at 4 quarts (3.8 liters)
each.
• One Crumb Tray (some models)
DCH-300/DCH-320
• Three 2-1/2” (63.5 mm) deep full size steam table
pans.
• Two water trays at 5 quarts (4.7 liters) each.
Temperature Ranges
DCH-100: 150°-165°F (66°-74°C)
DCH-120: 100°-165°F (38°-74°C)
DCH-200: 150°-165°F (66°-74°C)
DCH-220: 100°-165°F (38°-74°C)
DCH-300: 150°-165°F (66°-74°C)
DCH-320: 100°-165°F (38°-74°C)
Dimensions
A
B
C
Model Dim. A Dim. B Dim. C
DCH-100
DCH-120
15-1/8”
(384 mm)
30-1/4”
(768 mm)
22-13/32”
(569 mm)
DCH-200
DCH-220
30-1/4”
(768 mm)
30-1/4”
(768 mm)
22-13/32”
(569 mm)
DCH-300
DCH-320
42-1/16”
(1068 mm)
30-1/4”
(768 mm)
22-13/32”
(569 mm)
SPECIFICATIONS (continued)

DISPLAY CABINET HEATED
8P/N 1010772 Rev. D 12/13
Figure 1. Display Components (DCH-100 Shown)
Unpacking
1. Remove unit and all packing materials from ship-
ping carton.
2. Open the large box. Remove all packing materi-
als and protective coverings from the unit and
parts.
NOTE: If any parts are missing, contact A.J
Antunes & Co. IMMEDIATELY at 1-877-392-7854 in
the U.S., or 630-784-1000 outside the U.S..
3. Wash all components in soap and water. Wipe
all surfaces of the unit with a hot damp cloth.
NOTE: Do not use a dripping wet cloth. Wring out
before use.
4. Install components in unit.
Equipment Setup
When placing the unit into service, pay attention to the
following guidelines:
• Make sure power to the unit is off and the unit is
at room temperature.
• Do not block or cover any openings on the unit.
• Do not immerse cord or plug in water.
• Keep cord away from heated surfaces.
• Do not allow cord to hang over edge of table or
counter.
• Place unit on a sturdy, level table or work sur-
face.
• Ensure that the line voltage corresponds to the
stated voltage on the unit specification label
located at the end of the power cord.
• Turn the Rocker Switch (power On/Off) to OFF.
Connect the unit to the power supply.
INSTALLATION
CAUTION
All electrical connections must be in accordance
with local electrical codes and any other appli-
cable codes.
WARNING
Be sure to follow all of the warnings and precau-
tions listed in the Important Safety Information
section of this manual.
Water Tray
(some models)
Heating Element
Shield
THIS UNIT IS DESIGNED TO
OPERATE ON 120 VOLTS
ONLY. APPLICATION WITH ANY
OTHER VOLTAGE SUPPLY
COMPLETELY VOIDS ALL
WARRANTY. PLEASE CHECK
YOUR LINE VOLTAGE BEFORE
INSERTING THIS PLUG INTO THE
RECEPTACLE.
WARNING WARNING
120 VAC
ONLY
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS UNIT IS DESIGNED TO
OPERATE ON 220-240 VOLTS
ONLY. APPLICATION WITH ANY
OTHER VOLTAGE SUPPLY
COMPLETELY VOIDS ALL
WARRANTY. PLEASE CHECK
YOUR LINE VOLTAGE BEFORE
INSERTING THIS PLUG INTO THE
RECEPTACLE.
WARNING WARNING
220-240
VAC ONLY
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
Crumb Tray
(some models)
Do NOT use with Water
Diffuser
(Only used with
Water Tray)
Heating
Element

9
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
Figure 2. Filling Water Tray (DCH-100 shown)
TEMP
UP
TEMP
DOWN
TEMP
SCALE
FC
O
O
Figure 3. Controls
TEMP
UP
TEMP
DOWN
TEMP
SCALE
FC
O
O
WATTS
SERIALNO.
CAROLSTREAMIL60188
MFG.NO.
VOLTS
180KEHOEBOULEVARD
A.J.ANTUNES& CO.
HZ.
DESCRIPTION
FOODEQUIPMENTDIVISION
MODELNO.
CITYOFNEWYORK
ACCEPTEDFORUSE
MEA10-96-E
DCH-320CT
DISPCABINETHEATED
50/60
120~
9500550 XXXXXXXX
1800
DEPARTMENTOFBUILDINGS
Figure 4. Loading Food (DCH-100 Shown)
Operations and Programming
IMPORTANT: Models DCH-120/220/320 have an
adjustable temperature range of 100-165° F (38-74°
C). Since the temperature can be set below 150° F
(65° C), which is below the safe holding tempera-
ture for some foods, only NON-MEAT products
should be held in these units. Models DCH-100/
200/300 have an adjustable temperature range of
150-165° F (66-74° C).
NOTE: The Setpoint temperature is the desired
cabinet temperature setting. When the Temp UP
button is pressed and held (and provided that the
unit is up to temperature), the actual cabinet tem-
perature is displayed. When the button is released,
the Setpoint temperature is displayed.
For units ONLY equipped with Water Tray(s) and
diffuser(s) (Figure 2):
• If a dry environment is desired, DO NOT add
water to the Water Trays. If a humid environ-
ment is desired, add water to the Water Trays as
shown in Figure 2. If more humidity is desired,
remove the Diffusers from the Water Trays.
NOTE: Fogging/Condensation of the glass may
occur if the Water Trays contain too much water
and/or the Diffusers are not present in the water
trays. Units equipped with a Crumb Tray (Figure 1)
are designed to operate WITHOUT water.
1. Turn the unit ON. The display will flash “LO” to
indicate that the unit is heating up. After 20-30
minutes (when the unit is up to temperature), the
display will show the setpoint temperature.
2. To adjust the setpoint temperature, press and
hold the Temp Up and Temp Down buttons until
the display begins to flash. Release the buttons.
Then, press the Temp Up or Temp Down but-
tons to raise or lower the setpoint temperature.
Release when the display shows the desired tem-
perature.
3. To change the display from Fahrenheit to Celsius
and back, press and hold the Temp Scale button
(Figure 3) for 2-3 seconds and release.
4. Open the rear door(s) and place the serving table
pan(s) into the unit (Figure 4). Load the pan(s)
with the food product using tongs or similar uten-
sil. Close the door(s).
OPERATING & PROGRAMMING
Rocker Switch
(Power On/Off)
Control Panel
Key Pad
TEMP
UP
TEMP
DOWN
TEMP
SCALE
FC
O
O
NOTE: Back
of unit shown

DISPLAY CABINET HEATED
10 P/N 1010772 Rev. D 12/13
Parts Replacement
MAINTENANCE
WARNING
Be sure to follow all of the warnings and precau-
tions listed in the Important Safety Information
section of this manual.
WARNING
All glass surfaces must be cool before cleaning.
Once cool, wipe glass with a clean cloth. Do not
attempt to clean glass when hot or with cold towel
as shattering glass may occur.
WARNING
Turn the unit off, disconnect the power source
and allow the unit to cool down before performing
any service or maintenance on the unit.
CAUTION
Do not handle halogen bulbs with fingers. Use a
tissue or clean cloth to handle halogen bulbs.
Cleaning
The unit requires a minimum amount of maintenance.
To ensure proper operation, clean the unit at the end of
each serving day.
1. Turn off the unit, unplug the power cord from the
electrical outlet, and allow the unit to cool to room
temperature before proceeding.
2. Wash all components in soap and water. Wipe all
surfaces of the unit with a damp cloth.
NOTE: Do not use a dripping wet cloth. Wring the
cloth out before use.
3. Wash and dry all surfaces of the unit.
4. Install components in unit.
WARNING
Do not remove water pan or crumb tray while unit
is hot or personal injury may result.
Figure 5. Halogen Bulb Replacement
FRONT DISPLAY GRAPHICS AND BULB REPLACEMENT
1. Turn the Rocker Switch (Power On/Off) to OFF
2. Unplug the power cord from the electrical outlet
and allow the unit to cool to room temperature
before proceeding.
3. Using a screwdriver or similar flat bladed tool,
gently pry one side of the display panel assembly
from the unit (Figure 6), then remove the panel.
4. Remove bulb by gently turning it counterclock-
wise. Install a new 10 watt 120 volt bulb.
5. Install new graphics by removing the white dif-
fuser plate and transparency holder. Replace
transparency and reinstall holder and plate.
REAR DOOR REPLACEMENT
DCH-100/120 Models
1. Turn the Rocker Switch (Power On/Off) to OFF.
2. Unplug the power cord from the electrical outlet
and allow the unit to cool to room temperature
before proceeding.
3. Open the rear door and lift off the Hinge Pins.
4. Place new door on Hinge Pins and close the
door.
HALOGEN QUARTZ BULB REPLACEMENT
1. Turn the Rocker Switch (power On/Off) to OFF.
2. Unplug the power cord from the electrical outlet
and allow the unit to cool to room temperature
before proceeding.
3. Gently, but firmly, press the lamp socket sideways
and remove the bulb (Figure 5).
4. Install a new 100 watt bulb while pressing the
socket sideways. Make sure bulb is fully seated
before releasing socket.
CAUTION
Use 100 Watt (Max.) quartz tungsten halogen lamp
(T4 Bulb/‘RSC’ Base) only. To reduce the risk of
electric shock when replacing bulbs, turn display
switch to OFF position.

11
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
TEMP
UP
TEMP
DOWN
TEMP
SCALE
FC
O
O
Figure 7. Rear Door(s) Removal/Installation
DCH-200/220/300/320 Models.
Figure 6. Display Lamp Replacement
1. Turn the unit OFF, unplug the power cord from
the electrical outlet, and allow the unit to cool to
room temperature before proceeding.
2. Loosen the thumbscrew securing each Top Glass
Retainer Assembly. Slide the retainer up and to
the rear (Figure 8).
3. Tilt the Front Glass Panel Assembly forward on
the Hinge Plate and remove the panel from the
unit.
4. To reinstall, be sure the Front Glass Panel
Assembly is fully seated in the Hinge Plate.
Then, tilt the assembly fully towards the rear and
secure it to the Top Glass Retainer Assembly
using the thumb screws.
SIDE GLASS REPLACEMENT
1. Turn the unit OFF, unplug the power cord from
the electrical outlet, and allow the unit to cool to
room temperature before proceeding.
2. Remove the thumbscrews securing each Top
Glass Retainer Assembly. Slide the retainer up
and to the rear.
3. Tilt the Front Glass Panel Assembly forward on
the Hinge Plate and remove the assembly from
the unit.
4. Remove each Top Cap Assembly (Figure 8).
Next, lift the Side Glass Panel up and forward to
remove it from the glass clips.
6. To reinstall, position the Side Glass Panel into
glass clips. Push fully rearward and position the
Nylon Stoppers according to Figure 8. Reinstall
the front glass panel assembly (Figure 8).
CAUTION
Front glass panel replacement should be per-
formed by two people to prevent damage to the
glass.
Figure 8. Glass Panel (s) Replacement
Top Glass
Retainer
Assy.
Front Glass
Panel
Top Cap
Assy.
Side Glass
Hinge
Plate
7. Secure with the Top Cap Assembly and Top
Glass Retainer Assembly using the thumbscrews.
MAINTENANCE (continued)
Nylon
Stopper
Nylon
Stopper
DCH-200/220/300/320 Models
1. Turn the Rocker Switch OFF, unplug the power
cord from the electrical outlet, and allow the unit
to cool to room temperature before proceeding.
2. Firmly grasp the sides of one glass door. Lift the
door up and out of the bottom track (Figure 7).
Repeat for the other door.
3. Place new door in the inside upper track. Push
up firmly and slide bottom of door into bottom
inside track. Install other door into outside tracks
the same way.
FRONT GLASS PANEL REPLACEMENT
NOTE: The Display Panel
Assembly is held in place
by magnetic strips. To
remove, carefully pry the
assembly from its place
using a at-blade screw-
driver or similar tool.

DISPLAY CABINET HEATED
12 P/N 1010772 Rev. D 12/13
MAINTENANCE (continued)
Technical Theory of Operation
When the Rocker Switch (power On/Off) is set to ON,
line voltage flows to the primary side of the Step Down
Transformer. The Transformer’s secondary side sup-
plies 12-14 VAC to terminals T1 and T2 on the Control
Board.
Once powered, and provided that the Cabinet tem-
perature is below the setpoint temperature, the Control
Board, in conjunction with a 100K ohm Thermistor, calls
for heat by supplying 15-20 VDC to terminals 3 (+) and
4 (-) on the Solid State Relay. Once powered, the Solid
State relay closes terminals 1 and 2, which allows line
voltage to flow to the heater(s).
As the Cabinet Temperature begins to increase, the
Thermistor monitors the Cabinet Temperature and
its ohms begin to decrease. Once the Cabinet tem-
perature approaches the setpoint temperature, the
Thermistor’s ohms are relayed over to the Control
Board.
The Control Board receives the ohms and proceeds to
remove the 15 - 20 VDC to the Solid State Relay since
the Heating Circuit has now become satisfied. The
relay terminals 1 and 2 open and the heater(s) stop
heating. The heating circuit will cycle on and off as
needed. The control board has the ability to display
several codes (see the section titled Display Codes in
the Maintenance section of this manual).
On some models, the Heated air is circulated by one
or two blower motors, while other models do not use
blower motors. Some models use water trays while
other models use a crumb tray.
NOTE: Crumb Trays (Figure 1) must NOT contain
water.
When the Water Trays (Figure 1) are filled with water,
the heat radiated by the heaters cause the water
to evaporate, which gradually adds humidity to the
Cabinet (see the Operation section of this manual).
NOTE: Water Trays use a diffuser (Figure 1). The
purpose of a diffuser is to shield away excessive
heat. This will allow the water to evaporate at a
slower rate resulting in a reduction of humidity in
the cabinet. On 120 volt units, the front display
panel is illuminated by 4, 6, or 8 120V, 10 watt, can-
descent bulbs that are wired in parallel (see the
Wiring Diagram section of this manual for 120 Volt
units).
NOTE: The 220/240 volt units also use the 120 volt
bulbs, but the bulbs are wired in series and in two
bulb circuits (see the Wiring Diagram section of this
manual for 220/240 volt units).
The internal cabinet area is illuminated by 1 or 2 120
volt, 100 watt halogen bulb(s). On 120 volt units, each
halogen bulb is wired in series with a 10 ohm, 50 watt
resistor (see the Wiring Diagram section of this manual
for 120 volt units). The purpose of the resistors is to
allow for a voltage drop. The voltage drop allows the
halogen bulb’s brightness to be slightly reduced.
NOTE: On 220/240 units, the Halogen Bulbs and
Resistors are all wired in series with one another.
See the Wiring Diagram for 220/240 volt units.

13
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
MAINTENANCE (continued)
Display Codes
This section describes the different display codes and
their meanings.
TEMP
UP
TEMP
DOWN
TEMP
SCALE
F
C
O
O
“LO” flashes during the initial warm up period. The unit
continues to display this code until the unit reaches the
setpoint temperature. When the unit reaches the set-
point temperature, it displays the setpoint temperature.
This figure shows an example setpoint temperature of
150° F displayed on the console.
“HI” flashes if the actual cabinet temperature exceeds
the setpoint temperature or if the thermistor has short-
ed.
NOTE: The thermistor should be 100k ohm +/- 2% at
room temperature.
“OPEN” flashes if the thermistor is OPEN or discon-
nected. The unit will not call for heat.
NOTE: The thermistor should be 100k ohms +/- 2%
at room temperature.
“PO” In 120 VAC units, this code flashes if the supply
voltage is below 100 VAC or above 135 VAC. In 220/
240 VAC units, this code flashes if the supply voltage is
below 190 VAC or above 265 VAC.
NOTE: If voltage is within normal ranges, then the
Control Board is faulty.
To reset a unit in this state, the supply voltage must be
within acceptable limits and the unit must be turned off
for a few seconds and then turned back on.

DISPLAY CABINET HEATED
14 P/N 1010772 Rev. D 12/13
TROUBLESHOOTING
WARNING
To avoid possible personal injury and/or damage to the unit, inspection, test and repair of electrical equip-
ment should be performed by qualified service personnel. The unit should be unplugged when servicing.
Problem Possible Cause Corrective Action
No heat, no display, and the
power switch indicator light is
OFF.
Power cord is not plugged in. Plug the power cord into the appropriate outlet.
Circuit breaker is off or has been tripped. Reset circuit breaker, contact your maintenance person or
Authorized Service Agency if it trips again.
No power at receptacle. Contact your maintenance person or Authorized Service
Agency for service.
Inoperable power cord.
Inoperable power switch.
Loose, burnt, broken wiring in the circuit.
No heat, no display, and the
power switch indicator light is
ON.
Inoperable Transformer. Contact your maintenance person or Authorized Service
agency for service.
Inoperable Control Board.
Loose, burnt, broken wiring in circuit.
Display flashes “LO” and the
cabinet does not heat up.
Inoperable Solid State Relay. Contact your maintenance person or Authorized Service
Agency for service.
Inoperable Control Board.
Inoperable Heater(s).
Loose, burnt, broken wiring in circuit.
Display flashes “HI” and the
cabinet does not heat up.
Inoperable Thermistor. Contact your maintenance person or Authorized Service
Agency for service.
Inoperable control Board.
Display flashes “HI” and the
cabinet is very hot.
Solid State Relay contacts shorted closed. Contact your maintenance person or Authorized Service
Agency for service.
Inoperable Control Board.
Display flashes “OPEN” and the
cabinet does not heat up.
Thermistor is disconnected or open. Re-secure the Thermistor onto the Control Board. If this
problem persists, contact your maintenance person or
Authorized Service Agency for service.
Inoperable Control Board.
Display flashes “PO” and the
cabinet does not heat up.
For 120 volt units, the supply voltage is below
100 VAC or above 135 VAC.
Contact your maintenance person or Authorized Service
Agency for service.
For 220/240 volt units, the supply voltage is
below 190 VAC or above 265 VAC.
Inoperable Control Board.
Product dries out quickly. Setpoint temperature is set too high. Lower the Setpoint temperature.
Incorrect wattage halogen bulb(s) being used. Use only 100 watt halogen bulb(s).
Water Tray(s) do not contain water or contain
insufficient water (for units equipped with
Water Trays only).
Add water to the Water Trays(s) and/or remove the Water
Tray Diffuser(s).
Display Cabinet glass is fogging
up and/or has condensation.
Water Tray(s) contain too much water and/or
the Water Tray Diffusers are not present (for
units equipped with Water Trays only).
Remove excess water from the Water Tray(s) and/or install
the Water Tray Diffuser(s).
Halogen Bulb(s) do not light up. Bulb(s) burnt out. Replace bulb(s)
Bulb(s) not seated properly into spring loaded
sockets.
Remove and reinstall bulb(s) so that the ends snap into the
socket(s).
Inoperable Resistor Assembly. Contact your maintenance person or Authorized Service
Agency for service.
Loose, burnt, or broken wiring in Circuit.
Inoperable Bulb Sockets(s).
Front Display Graphics does not
light up.
Bulb(s) burnt out. Replace Bulb(s).
Loose, burnt, or broken wiring in circuit. Contact your maintenance person or Authorized Service
Agency for service.

15
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
REPLACEMENT PARTS – DCH-100/120
47 18
60
50
61
23
22
50
60
59
19
47
27
47
30
28
32
31
33
35
20
12
55 16
49 53 50
49 15
17
11
13
40
44
52
2
42
43
52
3
1
55
52
4
99
10
5
6
58
7
57
63
21
48
37
64
36
62
8
45
51
34
14
65
56
25
50
39
38
65
26
66
67

DISPLAY CABINET HEATED
16 P/N 1010772 Rev. D 12/13
1 7000365 Front Glass Panel Assy. 1
2 0021057 Inner Lamp Housing Weldment 1
3 0011107 Resistor Assy. 1
4 0503046 Housing, Lamp 1
5 0011102 Rear Door Assy. (Incl. #6, 7, 57, 58) 1
6 2110139 Hinge, Lift-Off 2
7 2100145 Knob, Cover 1
8 0503294 Crumb Tray (some models) 1
9 0503038 Water Tray (some models) 1
10 0502172 Heat Shield 1
11 0021315 Control Panel Weldment 1
12 7000346 Temperature Control Display,
150°F-165°F (66°C-74°C) DCH-100 1
7000345 Temperature Control Display,
100°-165°F (38°-74°C), DCH-120 1
13 4010151 Rocker Switch, Power On/Off 120 VAC 1
14 7000645 Side Glass Replacement Kit 1
15 0503948 Heat Sink Assy. 2
16 4010199 Transformer, 120V/12V 1
17 7000652 Relay, Solid State 1
18 7000136 Terminal Block, 3-Pole 1
(Incl. #47 & 60)
19 4060341 Terminal Block, 8-Pole 1
20 0504070 Retainer, Glass (see Note 1) 2
21 0011718 Top Cap Assy., LH** (see Note 1) 1
0011717 Top Cap Assy., RH** (see Note 1) 1
22 0502866 Cover, Lamp Housing Bracket 1
23 0502865 Bracket, Lamp 1
25 0700463 Power Cord w/Plug, NEMA 5-15P 1
26 020K110 Gasket Kit, Bottom 1
27 0503990 Lamp, Bulkhead (Mfg# 9500512 only) 1
0503275 Lamp, Bulkhead 1
28 4060360 Candelabra Lamp Holder 4
30 4060359 Lamp, 120V, 10 Watt 4
31 0900216 Diffuser Panel (White) 1
32 2070120 Nipple, 1/8 NPT x 3/8 1
33 0900215 Display Panel (clear) 1
34 0021056 Display Frame Weldment 1
0021321 Display Frame Weldment 1
(MFG. # 9500512 only)
35 0503033 Display Frame 1
36 0200202 Magnetic Strip 1
37 5040036 Base Hinge Assy. 1
38 4030305 Heating Element, 120V 1400 Watts 1
39 7000369 Thermistor Replacement Kit 1
40 0503037 Duct, Access Cover 1
42 4060252 Bulb, Quartz Halogen, 100 Watt 1
43 4060189 Bulb, Holder, Quartz 2
44 0800316 Guard, Lamp 1
45 040K251 Strain Relief w/Locknut 1
47 306P101* Nut, Hex, #6-32, SS 1
48 306P105* Screw, #6-32 x 1/2, SS 1
49 306P130* Nut, Hex, KEPS, #6-32 1
50 308P103* Screw, #8-32 x 1/4 6
51 308P124* Screw, #8-32 x 1/2, One-Way 1
52 308P127* Screw, #8-32 x 5/16, SS 1
53 308P143* Nut, Hex, KEPS, #8-32 1
54 308P144* Screw, #8-32 x 1/4, #6 Head 2
55 308P159* Thumbscrew, #8-32 x 11/32 1
56 310P146* Nut, Hex, KEPS, #10-32 1
57 310P110* Screw, #10-32 x 1/2, SS 4
58 310P123* Screw, #10-24 x 1/2, SS 1
59 040P111* Snap Bushing 2
60 306P123* Screw, #6-32 x 7/8 2
61 308P151* Screw, #8-32 x 5/16” 1
62 0503044 Diffuser, Water Tray (some models) 1
63 400K123 Blower Kit 120V (some models) 1
Incudes #66
64 0501946 Blower Grill (some models) 1
65 2180179 Side Glass Nylon Stopper 2
(see Note 1)
66 7000174 Blower Cage Bearing/Grommet Kit 1
67 7000106 Display Rack (Optional) 1
Item Part Description Qty.
No.
Item Part Description Qty.
No.
REPLACEMENT PARTS – DCH-100/120
* Only available in packages of 10.
** LH/RH is determined by viewing front of curved glass panel. NOTE: If the existing 2 Top Glass Retainers (item #20)
ARE NOT rubber coated. It is recommended that you
replace them along with the 2 Top Cap Assembly (item
#21) with Glass Hardware Kit #7000368.
This kit consists of:
• Two (2) rubber coated Glass Retainer (P/N 0504070)
• One (1) Top Cap Assembly (RH) (P/N 0011717)
• One (1) Top Cap Assembly (LH) (P/N 0011718)
• Two (2) Nylon Side Glass Stoppers
(P/N 2180179)
• Two (2) Thumbscrews (P/N 3080159)
• Installation Instructions

17
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
REPLACEMENT PARTS – DCH-200/220
47 18
60
50
61
23
22
50
60
59
19
47
27
47
30
28
32
31
33
35
20
12
55 16
49 53 50
49 15
17
11
13
40
44
52
2
42
43
52
3
1
55
52
4
99
10
5
6
58
7
57
63
21
48
37
64
36
62
8
45
51
34
14
65
56
25
50
39
53
64
46
45
53
48
54
25
26
20
58
21
24
50 18
68
12
16
56
52
15
17
11
13
35
42
43
55
41
66
10
65
9
58
55
50
6
4
55
40
44
23
7
19
52
67
31
32
33
34
30
29
68 62
14
5
22
59
1
39
38
70
37
36
69
27 71a
67
23
71b
66
65
9

DISPLAY CABINET HEATED
18 P/N 1010772 Rev. D 12/13
REPLACEMENT PARTS – DCH-200/220 (continued)
1 7000366 Front Glass Panel Assy. 1 1 1 1
2 0020675 Inner Lamp Housing Weldment 1 1 1 1
3 0010706 Resistor Assy., 120V 1 1 - -
0010644 Resistor Assy., 220V - - 1 1
4 0502895 Housing, Lamp - - 1 1
5 9020459 Display Rack (Optional) - - - -
6 7000443 Sliding Door Assy., Clear Glass 1 1 1 1
7000445 Sliding Door Assy., Mirrored, Glass (optional) - - - -
7 0501820 Support, Center Pan 1 1 1 1
9 0503293 Crumb Tray (some models) - - - -
10 0503283 Heat Shield 1 1 1 1
11 0021453 Control Panel Weldment 1 1 1 1
12 7000346 Temperature Control Display,
150°F-165°F (66°C-74°C) DCH-200 1 - - -
7000345 Temperature Control Display,
100°-165°F (38°-74°C), DCH-220 - 1 1 1
13 4010151 Rocker Switch, Power On/Off (120V) 1 1 - -
4010137 Rocker Switch, Power On/Off (250V) - - 1 1
14 7000645 Side Glass Replacement Kit 2 2 2 2
15 0020702 Heat Sink Assy. 1 1 1 1
16 4010199 Transformer, 120V/12V 1 1 - -
4010187 Transformer, 240V12V - - 1 1
17 7000652 Relay, solid state. 1 1 1 1
18 7000136 Terminal Block, 3 Pole (incl. #50 & 67) 1 1 1 1
19 4060341 Terminal Block, 8 Pole 2 2 2 2
20 0504070 Retainer, Glass (see Note 1) 2 2 2 2
21 0011718 Top Cap Assy., LH** (see Note 1) 1 1 1 1
0011717 Top Cap Assy., RH** (see Note 1) 1 1 1 1
22 2100183 Door Track, Upper 1 1 1 1
23 2100184 Door Track, Lower 1 1 1 1
24 0501946 Grill, Blower (some models) 1 1 - -
25 0700451 Power Cord w/Plug, NEMA 5-20P 120V 1 1 - -
0700453 Power Cord w/Plug, CEE 7/7 240V - - 1 1
26 020K107 Gasket Kit, Bottom 1 1 1 1
27 0503291 Lamp, Bulkhead (some models) 1 1 - -
0503771 Lamp, Bulkhead (some models) - 1 1 1
29 4060360 Candelabra Lamp Holder 6 6 6 6
30 4060359 Lamp, 120 v/10 Watt 6 6 6 6
31 0900151 Diffuser Panel (white) 1 1 1 1
32 0900173 Transparency Holder 1 1 1 1
33 0900150 Display Panel (black outline) Optional 1 1 - -
0900180 Display Panel (clear) Optional - - - -
0900244 Display Panel (blue outline) - 1 1 1
34 0501797 Display Frame 1 1 1 1
35 400K123 Blower Motor, 120 Volt (some models) Incl #69 1 1 - -
4000194 Blower Motor
1
36 0200154 Magnetic Strip 2 2 2 2
37 5040027 Base Hinge Assy. 1 1 1 1
38 4030324 Heating Element, 120V, 1400 Watts 1 1 - -
Item Part Description Qty. Qty. Qty. Qty.
No. DCH-200 DCH-220 DCH-220 DCH-220
120 V 120 V 230 V Mfg. # 9500533
* Only available in packages of 10
** LH/RH is determined by viewing front of curved glass panel.

19
DISPLAY CABINET HEATED
P/N 1010772 Rev. D 12/13
REPLACEMENT PARTS – DCH-200/220 (continued)
4030325 Heating Element, 230V, 1650 Watts - - 1 1
39 7000369 Thermistor Kit 1 1 1 1
40 0501806 Duct, Access Cover 1 - - -
41 0502555 Heat Deflector (some models) 1 - - -
42 4060252 Bulb, Quartz Halogen, 100 Watt 2 2 2 2
43 4060189 Bulb Holder, Quartz 4 4 4 4
44 0800224 Guard, Lamp 1 1 1 1
45 0502866 Cover, Lamp Housing Bracket 2 2 2 2
46 0502865 Bracket, Lamp Housing 2 2 2 2
48 040K251* Strain Relief w/ Locknut 1 1 1 1
040K315* Strain Relief w/ Locknut - - - 1
50 306P101* Nut, Hex, #6-32, SS 1 1 1 1
51 306P105* Screw, #6-32 x 1/2, SS 1 1 1 1
52 306P130* Nut, Hex, KEPS, #6-32 1 1 1 1
53 308P103* Screw, #8-32 x 1/4 6 6 6 6
54 308P124* Screw, #8-32 x 1/2, One-Way 1 1 1 1
55 308P127* Screw, #8-32 x 5/16, SS 1 1 1 1
56 308P143* Nut, Hex, KEPS, #8-32 1 1 1 1
57 308P144* Screw, #8-32 x 1/4 2 2 2 2
58 308P159* Thumbscrew, #8-32 x 11/32 1 1 1 1
59 310P146* Nut, Hex, KEPS, #10-32 1 1 1 1
60 310P110* Screw, #10-32 x 1/2, SS 4 4 4 4
61 310P123* Screw, #10-24 x 1/2, SS 1 1 1 1
62 040P111* Snap Bushing 2 2 2 2
63 308P105* Screw, #8-32 x 1/2, SS 2 2 2 2
64 308P151* Screw #8-32 x 5/16” 1 1 1 1
65 0503280 Diffuser, Water Tray (some models) - - - -
66 0503279 Water Tray (some models) - - - -
67 2180179 Side Glass Nylon Stopper 2 2 2 2
68 306P123* Screw, #6-32 x 7/8” 1 1 1 1
69 7000174 Blower Cage Bearing/Grommet Kit 1 1 1 1
70 213K103 Full Size Pan 2-1/2” deep - Non-perforated (optional) - - - -
71a 002K853 Pan Adapter Insert (optional) - - - -
(accomodates two optional 4” deep full size pans)
71b 0021348 Pan Adapter Insert - Sloped Version (Optional) - - - -
Item Part Description Qty. Qty. Qty. Qty.
No. DCH-200 DCH-220 DCH-220 DCH-220
120 Volt 120 Volt 230 Volt Mfg. # 9500533
* Only available in packages of 10
** LH/RH is determined by viewing front of curved glass panel.
NOTE 1: If the existing 2 Top Glass Retainers (item #20) ARE NOT rubber coated, it is recommended that you replace
them along with the 2 Top Cap Assemblies (item #21) with Glass Hardware Kit #7000368. This kit consists of:
• 2 rubber coated Glass Retainers (P/N 0504070)
• 1 Top Cap Assembly (RH) (P/N 0011717)
• 1 Top Cap Assembly (LH) (P/N 0011718)
• 2 Nylon Slide Side Glass Stoppers (P/N 2180179)
• 2 Thumbscrews (P/N 3080159)
• Installation Instructions (P/N 1010828)

DISPLAY CABINET HEATED
20 P/N 1010772 Rev. D 12/13
53
64
46
45
53
48
54
25
26
20
58
21
24
5018
68
12
16
56
52
15
17
11
13
35
42
43
55
41
66
10
65
9
58
55
50
6
4
55
40
44
23
7
19
52
67
31
32
33
34
30
29
68 62
14
5
22
59
1
39
38
70
37
36
69
27 71
67
23
53
46
45
12
16 56
52
15
17
11
13
42
43
55
41
9
69
58
6
4
55
40
44
2
3
7
5
1
39
70
23 7
20
58
22
24
66
53
48
54
25
5018
65
34
31
32
33
29
30
50
37
66
36
35
52
19
35
52
71
71
14
21
34
55
67a
67b
10
65
62
38
8
REPLACEMENT PARTS – DCH-300/320