Prince Castle Merlin II 840-C Series User manual

OPERATING
INSTRUCTIONS
Multi-Function Computers
Model No. 840-C, 840-CJ &
840-CF Series
TABLE OF CONTENTS PAGE
Installation..................................................................... 2
Programming.............................................................. 2-7
Operation .................................................................... 7-8
Cleaning ........................................................................ 8
Parts List....................................................................... 8
Exploded View .............................................................. 9
Troubleshooting ............................................................ 9
Wiring Diagrams ......................................................... 10
Pictured Model 840-C8
ELECTRICAL
840-C Series 840-CF Series
120 Volts 220 Volts
50/60 Hz 50/60 Hz
30 Watts
Single Phase
840-CJ Series
200 Volts
50/60 Hz
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 equipment is portable; charges for on-location
service (e.g., trip charges, mileage) are not included in the
provisions of this warranty.
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
840-509revAPrinted in USA 3/06 © 2006

Table Of Contents
IIntroduction
II Installation
III Control Panel
IV Programming
A. Channel Programming.
B. Program Specials.
C. Probe A.
D. Probe B.
VRecovery Time Check
VI Operation
VII Cleaning
VIII Parts List Exploded View
IX Troubleshooting
XWiring Diagram
I INTRODUCTION
The 840 Series Compensating Timers allow the user
great flexibility in programming options. Each channel
can be programmed to include a total cook time, three
duty functions during that cook time, a hold time and a
hold duty function. Each channel can be programmed to
use either Probe A or B for compensated time or no
probe at all for straight countdown time.
II INSTALLATION
1. After you have removed the timer from the carton,
inspect the unit for signs of damage. If there is
damage to the unit:
lNotify carrier within 24 hours after delivery.
lSave carton and packing materials for inspection
purposes.
lContact your Prince Castle Dealer for replace-
ment or the Prince Castle Customer Sales
Department at 1-800-722-7853 if purchased
directly.
2. Verify that all parts have been received. Mounting
bracket and hardware are provided.
3. To mount the timer, place mounting brackets in de-
sired location. Scribe location of mounting holes,
center punch, and drill holes. Attach timer to mount-
ing brackets placing star washer between bracket and
timer.
2
III CONTROL PANEL
IV PROGRAMMING
There are four different programming features within the
program mode:
A) Program Timers is used to program the Cook,
Hold and Duty times for each channel.
B) Prog Probe A is used to program the set point
temperature or calibrate the left probe.
C) Prog Probe B is used to program the set point
temperature or calibrate the right probe.
D) Program Specials is used to select the
appropriate temperature scale (F or C), select
which probes will be used for each timer
channel or to test the fryer recovery time.
1. Press and hold the PRINCE CASTLE LOGO for
eight seconds, a short beep will sound and LOGO
=QUIT will appear in the display.
ENTER
Prince Castle
Button
Function Display
Time
Display
Scan Up
&
Scan Down
Button
Enter
Button
Time
Mode
Lights
Timer Channel
Buttons
Timer
Channel
Lights
LOGO=QUIT
- - - -
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3
3. At this point you can program in your complete
cook time by using the SCAN/UP BUTTON or the
SCAN/DOWN BUTTON. Once you have reached
your desired time press the ENTER button to store
your complete cook time.
IMPORTANT:To change from minutes and sec-
onds M:S to hours and minutes H:M. press and
hold the SCAN/UP BUTTON. When the display
reaches 59:59 it will automatically change to 1:00
Hour and the TIME MODE LIGHT will switch from
M:S toH:M. The program value for the H:M indica-
tor is from 1:00 hour to 60 hours: 00 minutes.
4. Once you press ENTER , CKC=MAN CANCEL or
CKC=AUT CANCELwill appear in theFUNCTION
DISPLAY , press the SCAN UP BUTTON orSCAN
DOWN BUTTON to switch from one mode to the
other. Press the ENTER button to store your
selection or if no change is required.
Press either the SCAN UP BUTTON or the SCAN
DOWN BUTTON to switch through the four pro-
gramming options until you get to the appropriate
option.
Press theENTER BUTTON to enter that program-
ming mode.
A. Prog. Timers
1. After pressing the ENTER BUTTON, SEL CH/
LOGO=QUIT will appear in the display.
2. Press theTIMER CHANNEL BUTTON to be
programmed. TheTIMER CHANNEL LIGHT will
turn Amber and a beep will sound. TheFUNCTION
display will read,CKT=COOK TIME. The current
complete cook time for that channel will be dis-
played in the TIME display, and the TIME MODE
LIGHTS will indicate either H:M OR M:S.
PROG SPECIAL
- - - -
ENTER
SEL CH/LOGO = QUIT
ENTER
CKT=COOK TIME
3 : 0 0
ENTER
CKT=COOK TIME
6 : 0 0
ENTER
CKC=MAN CANCEL
6 : 0 0
840-509revAPrinted in USA 3/06 © 2006

5. After you press theENTER BUTTON, the FUNC-
TION display will change to CKL=REMOVE. An
alternate function name can be selected (see list
below) by using the SCAN UP or SCAN DOWN
arrows. Press the ENTER BUTTON to store the
selection. The function name selected will be
displayed during the final countdown sequence.
Note: The function name options are as follows:
BAKE, BAKE MORE, BASTE, BRAISE, CHILL,
COOK, COOK DUTY 1, COOK DUTY 2, COOK
DUTY 3, COOK MORE, COVER, DISCARD, DONE,
DROP, END, FOLD, FRY, FRY MORE, GRILL,
GRILL MORE, HOLD, HOLD DUTY, MIX, POACH,
POUR, REMOVE, ROTATE, SEAR, SHAKE, SIDE
1, SIDE 2, STIR, TURN, WHIP And WRAP.
6. If no other programming changes are required for
this channel, press theTIMER CHANNEL BUTTON
untilSEL CH/LOGO=QUIT appears in theFUNC-
TION DISPLAY. AnotherTIMER CHANNEL BUT-
TON can then be selected for program changes or
thePRINCE CASTLE LOGO BUTTON can be
pressed to exit the PROGRAM TIMERS mode. To
change theDUTY function press the TIMER CHAN-
NEL BUTTON once.
7. The function display will readD1T-DUTY1 TIME and
the TIME DISPLAY will show the current Duty
Time.
9. Press the SCAN UP or SCAN DOWN ARROWS to
adjust the time setting. (Note: If no duty time is
desired set the time to 00:00). Press the ENTER
BUTTON to store the new DUTY 1 time.
10. Once you pressENTER ,CKC=MAN CANCEL or
CKC=AUT CANCELwill appear in theFUNCTION
DISPLAY , press theSCAN UP BUTTON orSCAN
DOWN BUTTON to switch from one mode to the
other. Press the ENTER button to store your
selection or if no change is required.
11. After you press the ENTER BUTTON, the current
DUTY FUNCTION title will now appear in the
FUNCTION DISPLAY. Press the SCAN UP or
SCAN DOWN button to rename theDUTY FUNC-
TION; the available list ofDUTY FUNCTION names
is listed below. . Press the ENTER BUTTON to
store the selection.
Note: The function name options are as follows:
BAKE, BAKE MORE, BASTE, BRAISE, CHILL,
COOK, COOK DUTY 1, COOK DUTY 2, COOK
DUTY 3, COOK MORE, COVER, DISCARD, DONE,
DROP, END, FOLD, FRY, FRY MORE, GRILL,
GRILL MORE, HOLD, HOLD DUTY, MIX, POACH,
POUR, REMOVE, ROTATE, SEAR, SHAKE, SIDE
1, SIDE 2, STIR, TURN, WHIP And WRAP.
ENTER
CKL=REMOVE
6 : 0 0
ENTER
D1T=DUTY 1 TIME
0 : 35
ENTER
CKC=MAN CANCEL
6 : 0 0
ENTER
D1T=FRY
6 : 0 0
4
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12. Follow steps 6-11 to program changes to the other
DUTY FUNCTIONS and theHOLD FUNCTIONS.
13. When all theTIMER CHANNEL BUTTONS have
been programmed, andSEL CH/LOGO=QUIT
appears in theFUNCTION DISPLAY,
press thePRINCE CASTLE LOGO BUTTON to
return to the main programming menu,indicated by
LOGO=QUIT appearing in theFUNCTION DIS-
PLAY.
B) Program Specials
1. WhenLOGO=QUIT appears in theFUNCTION
DISPLAY, press either theSCAN UP orSCAN
DOWN BUTTON untilPROG SPECIALS appears in
theFUNCTION DISPLAY.
ENTER
SEL CH/LOGO = QUIT
LOGO=QUIT
- - - -
2. PressENTER BUTTON twice untilTEMP=F or
TEMP=C appears in the display.
3. Press either the SCAN UP or SCAN DOWN
BUTTON to switch from one temperature scale to
the other. Press the ENTER BUTTON to store the
chosen temperature scale
4. All of the channel LEDs will be lit and SEL
CHAN=PROBE will be in the display.A GREEN
LED designates PROBE A(The Left Probe) will
be used in conjunction with the selected TIMER
CHANNEL BUTTON,A RED LED designates
PROBE B (The Right Probe) will be used, NO
LED means a Timer Channel is set up for straight
countdown timing without the use of either probe.
5. Pressing theCHANNEL TIMER BUTTON will
change the probe option from Green (Probe A) to
Red (Probe B) to no light (No Probe) for that
particular Timer Channel.
6. When the appropriate probe has been selected for
Timer Channel, press theENTER BUTTON three
times untilENTER/LOGO=QUIT appears in the
FUNCTION DISPLAY.
PROG SPECIALS
- - - -
TEMP=F
- - - -
SEL CHAN=PROBE
- - - -
SEL CHAN=PROBE
- - - -
5
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6
7. Press thePRINCE CASTLE LOGO BUTTON one
time and LOGO=QUIT will appear in theFUNC-
TION DISPLAY.
C) Probe A Programming
1. WhenLOGO=QUIT appears in theFUNCTION
DISPLAY press either theSCAN UP orSCAN
DOWN BUTTON untilPROG PROBE A appears in
theFUNCTION DISPLAY.
2. Press theENTER BUTTON twice and the FUNC-
TION DISPLAY will readPrA-COOK TEMP and the
TIME DISPLAY will show your current cook tem-
perature.
3. Press either the SCAN UP or SCAN DOWN BUT-
TON to adjust the set point temperature. Note: The
set point temperature should be the same as the
temperature set on the fryer.
4. Press the ENTER BUTTON to store the new
temperature,PrA-CAL (00) will appear in the
FUNCTION DISPLAY and the probe temperature in
theTIME DISPLAY.
5. Use a thermometer to measure the actual fryer
temperature.
6. Press either the SCAN UP or SCAN DOWN BUT-
TON to change the offset value so that the tempera-
ture in the TIME DISPLAY equals the actual fryer
temperature.
7. Press the ENTER BUTTON to store the changes.
8. Press thePRINCE CASTLE LOGO BUTTON to
return to the main programming menu. Press the
SCAN UP orSCAN DOWN BUTTON untilProg
Probe B appears in the FUNCTION DISPLAY.
D) Probe B Programming
Follow the steps in SECTION C for programming
this probe.
9. Follow Steps 1-7 For Probe B
10. Press theENTER BUTTON to store changes
ENTER LOGO=QUIT will appear in theFUNCTION
DISPLAY.
11. Press thePRINCE CASTLE LOGO BUTTON twice
to return to the RUN MODE.
PrA-CAL (00)
320F
PROG PROBE A
- - - -
PrA-COOK TEMP
325F
PrA-COOK TEMP
320F
PrA-CAL (00)
325F
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7
V RECOVERY TIME CHECK
The purpose of the RECOVERY TIME CHECK is to
determine the length of time needed for the short-
ening in the fryer to rise from 275° F (135° C) to
325° F (162° C). The RECOVERY TIME CHECK
should either be done at the same time as calibrat-
ing the fryer temperature or when new shortening is
put into the fryer. Note: It is important that the
shortening temperature is less than 275°F (135°C)
when the RECOVERY TIME CHECK is started.
1. Press and hold thePRINCE CASTLE LOGO for
eight seconds, a short beep will sound and LOGO
=QUITwill appear in the FUNCTION DISPLAY.
2. Press the SCAN UP BUTTON once and PROG
SPECIAL will appear in theFUNCTION DISPLAY.
3. Press theENTER BUTTON four timesPrA-RECOV-
ERY will appear in theFUNCTION DISPLAY.
4. Press either the SCAN UP or SCAN DOWN
BUTTONto begin theRECOVERY TIME CHECK.
PrA<275F-WAIT or(PrA<135C-WAIT)will appear
in the FUNCTION DISPLAY and 00 in the TIME
DISPLAY until the shortening reaches275°F
(135°C).
5. When the temperature reaches275°F (135°C), the
FUNCTION DISPLAY will show the shortening
temperature (PrA 300F-WAIT, for example)and the
seconds will start counting up in the TIME DIS-
PLAY, 01, 02. 03 for example.
6. When the temperature reaches325°F (162°C) the
FUNCTION DISPLAY will readPrA>325F-DONE
(PrA>162C-DONE) and theTIME DISPLAY will
stop counting up. This is your Recovery Time.
5. Press theENTER BUTTON to store the recovery
time, the FUNCTION DISPLAY will now read PrB
RECOVERY. Follow steps 1-6 to check the recov-
ery time on PROBE B.
6. After saving the PROBE B recovery time the
FUNCTION DISPLAY will readENTER/
LOGO=QUIT. Press thePRINCE CASTLE LOGO
BUTTON twice to go back to the RUN MODE
LOGO=QUIT
- - - -
PROG SPECIALS
- - - -
PrA RECOVERY
:40
PrA<275FWAIT
:00
PrA>325FDONE
:45
PrBRECOVERY
:40
840-509revAPrinted in USA 3/06 © 2006

ENTER
1A=REMOVE
2 : 0 0
5. The scan feature is used to check the time values on
other active channels. There are two different ways
to scan active channels. Press the SCAN/UP or
SCAN/DOWN button.Or press any of the active
TIMER CHANNEL buttons. If no other button is
pressed within 5 seconds, the display will change to
show the timer with the least amount of time left.
6.You can change the sound level of the alarm in RUN
MODE. Press and hold the PRINCE CASTLE
LOGO ; then, within six seconds, press either the
SCAN UP BUTTON or theSCAN DOWN BUTTON.
TheSCAN UP BUTTON adjusts the sound level to
the louder alarm, and theSCAN DOWN BUTTON
adjusts the sound level to the lower alarm.
VII CLEANING
1. Do not allow grease to build up on the timer, wipe it
down daily with clean damp cloth.
IMPORTANT: Do not use abrasive or chemical cleaners
on your timer, this may cause damage to the overlay.
VIII PART LIST
ITEM PART NUMBER DESCRIPTION
1 69-079S Rivet Plastic Push Pin
2 840-100 Rear Cover
3 840-134S Main P.C.Board
840-109S Auxillary P.C.Board
(840-C8D & 840-C16D)
4 71-042-02S Display Board
5 88-653-2-7S Speaker Assy.
6 840-096S Switch Panel Assy.
(840-C8 Series)
840-110S Switch Panel Assy.
(840-C4 Series)
7 70-048S Knob W/Washer (Pkg of 2)
8 840-103 Chassis (840-C4 & C8)
840-115 Chassis
(840-C8D & C16D)
9 72-292S Power Supply (110V)
72-293-01JS Power Supply (100V)
72-293-04FS Power Supply (220-240V)
*10 840-140 Left Probe Connector
840-141 Right Probe Connector
*Not Shown
VI OPERATION
1. Press a channel button to activate a timing cycle.
(All channels can be activated and running at the
same time.) The channel with the least amount of
function time remaining will be displayed in the
FUNCTION DISPLAY along with its next function.
The time remaining will countdown in theTIME
DISPLAY, and the time valueM:S or H:M will be
illuminated.
2. Press the desired channel button three times within
five seconds to cancel an active timing cycle.
IMPORTANT: The channel timer buttons multi-
colored LED indicator shows the status of the
timer. The indicator has three colors: green,
yellow, and red. The LED will be green during
the first 70% of the countdown. It changes to
yellow during the next 20% of the countdown. It
will be red during the final 10% of the countdown,
and will start flashing red once the time has run
out.
Note: If a Manual Cancel is programmed into a
duty function the LED will flash red until the
channel button has been pressed . If an Auto-
matic Cancel is programmed the LED will flash
green for 5 seconds and the alarm will automati-
cally turn off.
3. The timer will countdown from the programmed
value to zero. When the complete cooked time is
finished, the TIME DISPLAY flashes 0 0 and the
alarm sounds.
4. When the timing cycle is complete, and the alarm
sounds, press the channel button with the flashing
red indicator to cancel the alarm.
8
Printed in USA 3/06 © 2006 840-509revA

A. No displays or indicators lit. Unit unplugged. Plug unit in.
Store's circuit breaker blown. Reset breaker.
Defective transformer. Replace Main Circuit Board.
Circuit inoperable. Replace Main Circuit Board.
B. Absence of Audio Alarm. Speaker inoperable. Replace Speaker.
Circuit inoperable. Replace Main Circuit Board.
C. Unit will not enter program All channels are still counting. Wait until channels are in stop
mode. mode.
Logo Switch inoperable. Replace Switch Panel.
D. Unit enters program mode. The channel is still counting. Wait until channel is in stop mode.
but cannot change times. Arrow Switch inoperable. Replace Switch Panel.
Circuit Inoperable Replace Main Circuit Board.
E. Unable to start, stop, or store Circuit inoperable. Replace Switch Panel. If
timer presets in program mode. problem persists, replace Main
Missing or abnormal characters Circuit Board.
in displays.
VIII EXPLODED VIEW
9
CAUSE SOLUTIONPROBLEM
1
2
34
5
6
78
9
XI TROUBLESHOOTING
840-509revAPrinted in USA 3/06 © 2006

X WIRING DIAGRAM
10
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