Prince Castle DHB-KFCA Installation Manual

OPERATING

540-510revA Printed in USA 2/06 © 2006

INSTRUCTIONS

KFC Holding Bin
Model No. DHB-KFCA,
DHB-KFCBF

Model DHB-KFC

Prince Castle Food Holding Bins provide the capacity re­quired for large foodservice operations while performing at
peak energy efficiency. Each unit features two individually
controlled holding chambers. The DHB-KFC 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.

TABLE OF CONTENTS PAGE

Installation..................................................................... 2

Heater Temperatures.................................................... 2

Overlay Glossary .......................................................... 3

Operation ....................................................................... 4

Programming................................................................. 4

Calibration & Cleaning ................................................. 5

Exploded View & Parts List ........................................ 6

Troubleshooting ............................................................ 7

Wiring Diagram ............................................................. 8

LIMITED WARRANTY

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.

ELECTRICAL SPECIFICATIONS

DHB-KFCA DHB-KFCBF

Voltage 120 220-240

Watts 1525 2725

Hertz 50/60 50

Amps 12.7 12.3

355 East Kehoe Blvd. ! Carol Stream, IL 60188

Tel: [phone] ! Fax: [phone]

Toll Free: 1-800-PCASTLE

INSTALLATION

Printed in USA 2/06 © 2006 540-510revA

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:

! Notify carrier within 24 hours after delivery.

! Save carton and packing materials for inspection

purposes.

! Contact your local dealer or, if purchased di-

rectly, the Prince Castle Customer Sales Depart­ment at 1-630-462-8800 to arrange for a replace­ment to be sent.

2. Verify that all parts have been received.

figure 1

HEATER IDENTIFICATION

AND PROGRAM SET POINT TEMPERATURES

WITH DOORS

1 REAR

225°F
107°C

1 FRONT

250°F
121°C

2 REAR

180°F

82°C

3 REAR

250°F
121°C

3 FRONT

275°F
134°C

4 REAR

180°F

82°C

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 120 Volt grounded outlet.

TEMPERATURE CONTROLLER

The DHB-KFC Holding Bin will hold two 18” x 12”
sheet pans. There are top and bottom 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.

Heater 1 Front = Left Upper, Front Heat Zone
Heater 1 Rear = Left Upper, Rear Heat Zone
Heater 2 Front = Left Lower, Front Heat Zone
Heater 2 Rear = Left Lower, Rear Heat Zone
Heater 3 Front = Right Upper, Front Heat Zone
Heater 3 Rear = Right Upper, Rear Heat Zone
Heater 4 Front = Right Lower, Front Heat Zone
Heater 4 Rear = Right Lower, Rear Heat Zone

The DHB-KFC has preset temperatures for two
different KFC specifications, one for use with doors
(Figure 1) and one for use without doors (Figure 2).

IMPORTANT: Do not program a differential greater
than 30°F(1.1°C) between the front and rear heater.
See the explanation in Troubleshooting on page 7 of
this manual.

2 FRONT

180°F

82°C

4 FRONT

180°F

82°C

Original Recipe® Strips

Patties

figure 2

HEATER IDENTIFICATION

AND PROGRAM AND SET POINT TEMPERATURES

WITHOUT DOORS

1 REAR

275°F
134°C

1 FRONT

300°F
148°C

2 FRONT

180°F

82°C

2 REAR

180°F

82°C

4 FRONT

180°F

82°C

3 REAR

330°F
165°C

3 FRONT

360°F
182°C

4 REAR

180°F

82°C

Original Recipe® Strips

Patties

NOTE: Actual heater surface temperatures will vary
from programmed set point temperature when front
and rear heater set point differential is 20° F(.6°C) or
greater.

2

OVERLAY PANEL

540-510revA Printed in USA 2/06 © 2006

OVERLAY PANEL BUTTON GLOSSARY

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.

4

Displays the currently selected heater and zone (Front or Rear)

Displays the actual temperature for the selected heater zone.

2 2 5

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

OPERATION

Printed in USA 2/06 © 2006 540-510revA

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 tempera­ture reaches 75°F(23°C).

NOTE: To set to °F (The unit leaves the factory

set in Celsius) turn the power switch to the “OFF”
position. Press and hold the “UP ARROW” Button
then turn the power switch to the on position,
release the “UP ARROW” 10 seconds after
turning on the power. To switch from °F to °C turn
power switch to the “OFF” position. Press and
hold the “DOWN ARROW” Button then turn the
power switch to the on position, release the
“DOWN ARROW” 10 seconds after turning on the

power

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.

4

2 5 5

2. Press the Set Point button.

PROGRAMMING

L L L

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.

1 4 0

Change the Setpoint temperature for a heater:

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 (PRI) 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

2 5 5

4

3. Use the Up and Down Arrow button to increase or
decrease the setpoint temperature. The heater

2 5 0

can be turned off by pressing the Down Arrow
until the display reads “OFF”.

IMPORTANT: Do not program a set point tempera­ture differential greater than 30°F(1.1°C) between the
front and rear of any heater assembly.

4

CALIBRATION

540-510revA Printed in USA 2/06 © 2006

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.

4. Use the Up and Down Arrow button to increase or

decrease the displayed temperature until it matches
the value measured by the standalone meter.

5. 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.

6. The new value will be saved by the controller and

Calibration Mode will end.

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).

Rear Heater Rear Heater

Front Heater Front Heater

Take Temperature Reading At These Spots

CAUTION: Surface temperatures are HOT!
Use caution when making any temperature
measurements within the heater cavity.

To clear or reset the calibration value, follow steps 1
through 3.

To clear the calibrated offset value, press the Set Point
button. The display will show the temperature value the
sensing probe is measuring. Use steps 4 through 6 to
calibrate the temperature display to the restaurant’s

standalone meter.

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. Press and hold the PRI in the Prince Castle Logo and
the Actual Temp button for 3 seconds.The decimal

point to the left of the °F symbol will light indicating

the Calibration Mode. The temperature value displayed
on the front panel is the actual heater temperature
sensed by the controller.

3. Wipe down with a damp cloth. Do not use a
green scotch bright pad, unapproved cleaner, ice

or water.

5

EXPLODED VIEW

Printed in USA 2/06 © 2006 540-510revA

540-900S

Door and
Hinge Kit

540-128S
(110 Volt)
540-224S
(220 Volt)

Heater
Assembly

540-207

Frame

540-208

Screen

88-639-08

Flourescent Lamp
(220 Volt)
(Not Shown)

85-080-16

Ballast (220 Volt)

86-203

Light Bulb
(110 Volt)
(Not Shown)

(Not Shown)

72-280S
(110 Volt)
72-349S
(220 Volt)

Power Cord

540-206

Heat Guard

540-202

Door

78-166S

Rocker
Switch

213-202S

Leg W/Screw
(Set of 4)

540-191S

Lamp Socket

540-105S

Overlay & Brkt
Assy.

540-235AS

Display
Board

540-236AS
(110 Volt)
540-232S
(220 Volt)

Power
Board

6

TROUBLESHOOTING

540-510revA Printed in USA 2/06 © 2006

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 30°F 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.

Problem Cause Solution

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.150.2 Ohms

Unplugged ribbon cable between

Verify ribbon cable connection.
Power and Main Circuit Boards.

C. Display shows “LLL” Temperature is below 75° F N/A

(normal operation)

Display shows “LLL” Heater inoperable. Test heater resistance.150.2 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 above400° F 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.

7

WIRING DIAGRAM (DHB-KFC)

Printed in USA 2/06 © 2006 540-510revA

8