Prince Castle DHB-KFC3GB User manual

OPERATING
INSTRUCTIONS
KFC Hot Hold Bin
Model No. DHB-KFC3GB
355 East Kehoe Blvd. zCarol Stream, IL 60188
Tel: [phone] zFax: [phone]
Toll Free: 1-800-PCASTLE
Prince Castle Food Holding Bins provide the capacity re-
quired for large foodservice operations while performing at
peak energy efficiency. The unit features a controlled holding
chamber capable of holding 3 half size pans. The DHB-
KFC3GB has shatterproof lighting to illuminate foods. New
Reli-A-Temp™ infrared heater technology holds product
temperatures more consistent within the designated holding
time than other types of heating systems. This exclusive
heater design spreads the heat evenly over the entire food
holding area, eliminating edge drop off. Food is kept at the
desired serving temperature.
ELECTRICAL SPECIFICATIONS
Voltage 230
Watts 2500
Hertz 50/60
Amps 10.5
This product is warranted to be free from defects in material and/or
workmanship for a period of 1 year from date of original installation,
not to exceed 18 months from the date of manufacture.
Any component which proves to be faulty in material and/or
workmanship will be replaced or repaired (at the option of Prince
Castle, Inc.) without cost to the customer for parts and labor. This
warranty covers on-location service (i.e. trip charges and/or
mileage). Travel mileage is limited to 100 miles (200 Kilometers)
round trip (one trip warranty) from an authorized service agency or
its sub-service agency.
This warranty is subject to the following exceptions/conditions:
• Use of any non-genuine Prince Castle parts voids this warranty.
• All labor to be performed during regular work hours. Overtime
premium (the incremental amount) will be charged to the
customer.
• Damage caused by carelessness, neglect and/or abuse (e.g.,
dropping, tampering or altering parts, equipment damaged in
shipment, by fire, flood or an act of God) is not covered under this
warranty.
• All problems due to operation at voltages other than that specified
on equipment nameplates are not covered by this warranty.
Conversion to correct voltage is the customer’s responsibility.
• This equipment must be serviced by Prince Castle Authorized
Service Agency or a Prince Castle Service Technician during the
warranty period.
LIMITED WARRANTY
TABLE OF CONTENTS PAGE
Installation..................................................................... 2
Heater Temperatures.................................................... 2
Overlay Glossary .......................................................... 2
Operation ....................................................................... 3
Programming................................................................. 3
Calibration & Cleaning ................................................. 4
Parts List....................................................................... 5
Troubleshooting ............................................................ 5
Wiring Diagram ............................................................. 6
543-500revBPrinted in USA 2/06 © 2006

INSTALLATION
1. After you have removed the Holding Bin from the
carton, inspect the unit for signs of damage. If there
is damage to the unit:
zNotify carrier within 24 hours after delivery.
zSave carton and packing materials for inspection
purposes.
zContact your local dealer or, if purchased di-
rectly, the Prince Castle Customer Sales Depart-
ment at 1-630-462-8800 to arrange for a replace-
ment to be sent.
2. Verify that all parts have been received.
3. Remove all packaging and fillers. Note: Make
sure that you remove vinyl protective cover from
the stainless steel exterior surfaces and both
sides of the doors before turning on power.
4. Remove Heat Shield (packaged and on top of
Bin) and line up 3 Keyhole slots with studs
above heater compartment and attach.
5. Plug unit into a 230 Volt grounded outlet.
TEMPERATURE CONTROLLER
The DHB-KFC3GB Hot Hold Bin will hold three half
size pans. There are top heaters for each pan.
Each heater has independently controlled front and
rear sections. All heater zones are independently
controlled to set point temperatures. The following
is the relationship between the heater zones and pan
location. All heater zones are preset at the factory
for 182° C
Heater 1 Front = Left Upper, Front Heat Zone
Heater 1 Rear = Left Upper, Rear Heat Zone
Heater 2 Front = Middle Upper, Front Heat Zone
Heater 2 Rear = Middle Upper, Rear Heat Zone
Heater 3 Front = Right Upper, Front Heat Zone
Heater 3 Rear = Right Upper, Rear Heat Zone
IMPORTANT: Do not program a differential greater
than 17°C between the front and rear heater.
2
In the OPERATION MODE Up and Down
Arrows are used for selecting a shelf
heater zone for display purposes. In
PROGRAM MODE increase/decrease
the set point value for the current
heater being programmed.
In the OPERATION MODE when
pressed, display will show the current
temperature for the selected heater
zone. In PROGRAM MODE when
pressed will end the program mode.
In the OPERATION MODE when
pressed, display will show the current
setpoint temperature for the selected
heater zone. In the PROGRAM MODE
when pressed will end the program
mode.
When pressed with the PRINCE
CASTLE LOGO will allow the setpoint
temperature on the selected heater to
be changed.
3
When pressed, will send the unit into
the CALIBRATION MODE. When
pressed in conjunction with “Change
Set Point” Button will allow the set
point temperature to be changed.
OVERLAY PANEL BUTTON
GLOSSARY
NOTE: Actual heater surface temperatures will vary
from programmed set point temperature when front
and rear heater set point differential is 11°C or
greater.
Displays the currently selected heater
and zone Front or Rear
182 Displays the actual temperature for
the selected heater zone.
Printed in USA 2/06 © 2006 543-500revB

3
543-500revBPrinted in USA 2/06 © 2006
OPERATION
1. Turn on power switch and light switch located
under control panel
2. Allow 20 minutes for heaters to reach set point
temperatures. For a cold start, the temperature
display will show LLL until the heater tempera-
ture reaches 24°C.
Show the Actual Temperature for a heater:
1. Press the Up or Down Arrow button until the
heater number and front or rear heater indicator
is selected.
2. Press the Actual Temp button.
Show the Setpoint Temperature for a heater:
1. Press the Up or Down Arrow button until the
heater number and front or rear heater indicator
is selected.
2. Press the Set Point button.
L L L
1 4 0
31 8 2
31 8 2
CHANGE SET POINT TEMPERATURE
1. Press the Up or Down Arrow button until the
heater number and front or rear Heater indicator
are selected.
2. Press and hold the hidden button behind the
Prince Castle logo and the Change Set Temp
button together for 5 seconds. The LED indicator
for Change Set point will light.
3. Use the Up and Down Arrow button to increase or
decrease the setpoint temperature. The heater
can be turned off by pressing the Down Arrow
until the display reads “OFF”.
IMPORTANT: Do not program a set point tempera-
ture differential greater than 17°C between the front
and rear of any heater assembly.
CHANGE TEMPERATURE SCALE
To change from Celsius to Fahrenheit, turn unit off,
press and hold the up arrow while turning the unit
back on. To change from Fahrenheit to Celsius,
press and hold the down arrow while turning the unit
on.
RESET TO FACTORY PRESET TEMPERATURES
To return the unit to the factory preset temperatures,
turn unit off, press and hold the Up and Down Arrows
while turning the unit back on. Release the Up and
Down Arrows and unit will return to the factory
presets.
31 8 2

4
CLEANING
CAUTION: This appliance is not water
tight. Do not clean with a Water Jet/Jet
Spray. Do not immerse appliance in
water.
CAUTION: Before unplugging power
cord, make sure power switch is in OFF
position.
1. Unplug Holding Bin from outlet.
2. Allow unit to cool down. (Approximately 15
minutes.)
3. Wipe down with a damp cloth. Do not use a
green Scotch Brite Pad, unapproved cleaner, ice
or water.
182
CALIBRATION
Occasionally, there are measured differences between the
restaurant’s temperature meter and what the controller
senses for a heater surface temperature. Part of the
difference is the location of the controller sensor versus
the location where the temperature was measured with
the restaurant’s temperature meter. The calibration mode
is used to adjust the Prince Castle controller to the
restaurant’s meter.
IMPORTANT: Allow heaters 20 minutes to stabilize before
starting the calibration mode.
1. Press the Up or Down Arrow button until the heater
number and front or rear heater indicator for the heater
to be calibrated are selected.
2. Make an external temperature measurement within
the shelf cavity near the center of the heater surface
using a stand alone temperature meter and probe (not
supplied).
CAUTION: Surface temperatures are HOT!
Use caution when making any temperature
changes
3. Press and hold the Prince Castle Logo and the Actual
Temp button for 3 seconds.The decimal point to the
left of the °C symbol will light indicating the Calibra
tion Mode. The temperature value displayed on the
front panel is the actual heater temperature sensed by
the controller.
4. This will clear or reset any previous calibration value.
Press the Set Point button, The display will show the
temperature value the sensing probe is measuring.
5. Use the Up and Down Arrow button to increase or
decrease the displayed temperature until it matches
the value measured by the standalone meter.
6. When the temperature value displayed on the front
panel is equivalent to the temperature value measured
by the standalone meter, press the hidden Prince
Castle Logo button.
7. The new value will be saved by the controller and
Calibration Mode will end.
Printed in USA 2/06 © 2006 543-500revB

PARTS LIST
1. 540-224S Heater Assembly
2. 543-102GBS Main P.C. Board
3. 543-100GBS Display P.C. Board
4. 78-166S Power Switch
5. 85-080-16 Ballast
6. 72-325 Power Cord
7. 88-682 Lampholder
8. 88-640-1 Starter
9. 88-680-02 Flourescent Lamp
TROUBLESHOOTING
The controller incorporates some diagnostic hardware and software to aid in troubleshooting problems. The display will flash
the problem if detected when the heater in question is selected. The error condition will not display in the Change Set Temp
mode.
IMPORTANT: To avoid a possible error message, do not program a differential greater than 17°C between the front and rear of
any heater assembly. The heater with the higher setting may not be able to get up to temperature because heat will be flowing
to the colder heater. An error message will be displayed and the heater that could not get to temperature will be turned off.
A. Display flashes Open relay. Replace Power Circuit Board
“Opn” & “rEL” Circuit inoperable
B. Display flashes Shorted relay. Replace Power Circuit Board.
“SHr” & “rEL” Circuit inoperable.
Open heater. Test heater resistance.155.5 Ohms
Unplugged ribbon cable between Verify ribbon cable connection.
Power and Main Circuit Boards.
C. Display shows “LLL” Temperature is below 24° C N/A
(normal operation)
Display shows “LLL” Heater inoperable. Test heater resistance.155.5 Ohms.
for an extended period Probe inoperable. Check for open thermocouple wires from
of time. probe. Replace heater/probe assembly.
Display shows “LLL” and Circuit inoperable. (see A). See A above.
then changes to “Opn”& “rel”
and heater surface
temperature is cool.
Display shows “LLL” and Circuit inoperable. (see B) See B above.
then changes to “SHr”&“rEL”
and heater surface
temperature is cool.
D.Display shows “HHH” for Temperature is above204° C Diagnostic circuit inoperable. Replace
an extended period of time (abnormal operation) Power Circuit Board.See B above.
and heater surface
temperature is hot.
Display shows “HHH” for Probe is inoperable Check for pinched thermocouple
an extended period of time wires from probe. Replace heater/probe
and heater surface assembly.
temperature is cool.
Problem Cause Solution
5
543-500revB Printed in USA 2/06 © 2006

6
ADDENDUM 1
Printed in USA 2/06 © 2006 543-500revB

7
543-500revB Printed in USA 2/06 © 2006