625-MFY Service Manual

Operating Instructions……………………………………………………….……….1

Parts Breakdown………………………………………………….………….……… 8

Store Troubleshooting Guide…………………………………….………….………. 9

Wiring Diagram……………………………………………………………..……..... 10

Access Instructions………………………………………………………….………. 11

Technicians’ Troubleshooting Guide………………………………………….……. 19

Operation Tips………………………………………………………...……….……. 20

Connecting Two Units……………………………………………..………..………. 21

Water Tube Cleaning………………………………………………..….…….…....... 22

Water Tube Replacement………………………………………….…….….….……. 23

…

Warranty Statement

This product (with the exception of the water tube, part no. 625-197S) is warranted to be free from defects in material and/or workmanship for a period of two (2) years from date of original installation, not to exceed 30 months from date of shipment from our factory. P.C. Boards and

Heater Assemblies are warranted for three (3) years from date of installation, not to exceed 42 months from date of shipment. 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 or 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 shall be performed during regular work hours. Overtime premium will be charged to

the buyer.

• 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.

Castle,

Printed 11/03

On/Off Rocker Switch

(left-side of unit)

625-M

FY

Product Identification

Prince Castle

Logo Button

Temperature &

UP Arrow Button

Celsius/Fahrenheit &

DOWN Arrow Button

McDonalds

Logo Button

Spatula

Control Panel

External Meter Plug Inlet

(for calibration)

Product

Buttons

(1 thru 4)

LED Display Start Button

LIMITED WARRANTY

This product (with the exception of the water tube, part no. 625-197S) is warranted to be free from defects in material and/or workmanship for a period of two (2) years from date of original installation, not to exceed 30 months from

date of shipment from our factory. P.C. Boards and Heater Assemblies are warranted for three (3) years from date of installation, not to exceed 42 months from date of shipment. 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 or 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 shall be performed during regular work hours. Overtime premium will be charged to the buyer.

• 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.

TABLE OF CONTENTS

Product Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

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

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Temperature

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

View Firmware Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Manual Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Programming Product Name & Water Cycle . . . . . . . . . . . . . . . . . . . . . . . .4

Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Cleaning - Daily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Cleaning - Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Exploded View and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

SANITATION

355 East Kehoe Blvd. • Carol Stream, IL 60188

Phone: 630-462-8800 • Toll Free: 1-800-PCASTLE

Fax: 630-462-1460 • www.princecastle.com

Printed in USA 1010 © 2003

Safety Information

WARNING

Indicates information important to the proper operation of the unit. Failure to observe may result in damage to the equipment and/or severe bodily injury or death.

CAUTION

Indicates information important to the operation of the unit. Failure to observe may result in damage to the equipment.

Steamer

625-M

FY

Important

Prince Castle reserves the right to change specifications and product design without notice. Such revisions do not entitle the buyer to corresponding changes, improvements, additions or replacements for previously purchased equipment.

Installation

Remove the unit from the carton and inspect for signs of damage. If there is damage to the unit:

• notify the carrier within 24 hours of delivery

• save carton and packaging materials for inspection purposes

• contact your local dealer, or if purchased directly, the Prince Castle

Sales Department at 800-722-7853 or 1-630-462-8800 to arrange for a replacement unit.

WATER CONNECTION REQUIREMENTS

If this is a new installation, accessory - 625-104 Regulatory Assembly Kit is required. You may also need accessory part #625-103 Coil Hose Kit

Assembly. Always use area codes for determination.

NOTE: When installing this unit, the ambient temperature at the mounting site should not exceed 37.8°C (100°F) .

CAUTION

All electrical connections must be in accordance with local electrical codes and any other applicable codes.

Plug the unit into an applicable electrical receptacle.

Connect the water line to the back of the unit.

CAUTION

Water connection must provide maximum water pressure of

20-30 psi (138-207 kPa).

Operation

A. Turn unit power On/Off switch to ON position. The display

1 show

PRINCE CASTLE for seven seconds.

B. After ten seconds the display will show PR.E-HEAT.

NOTE: The next-to-left most decimal point appears indicating power is applied to the platen. Platen will heat to the setpoint temperature.

2 show the product name assigned to button 1.

B.

spatula and place the product onto the spatula, cut side down.

Or press product buttons 2,3, or 4., then place product on the spatula, cut side down.

prince castle pr.e-heat

3

Place the spatula fully into the unit and press the START button.

4

filet

8 remove

Steamer

625-M

FY

1

Temperature

Calibration

A. Press and hold the TEMPERATURE button. The display will show the current temperature setting for Celsius (C) or

Fahrenheit (F).

B. While holding the TEMPERATURE button, press the C/F button to change the setting between Fahrenheit and Celsius.

C. Release the TEMPERATURE button to store the new value.

2

The CAL TEMP mode is used to calibrate the platen temperature with an external meter connected to the meter plug inlet on the bottom right side of the unit. Add ± 5°C (± 10°F) .

A. Press and hold McDonald's LOGO button and immediately press and hold the TEMPERATURE button. Hold for 6 seconds.

B. The display now shows the current calibration temperature.

C. Press the PRODUCT 2 button to zero any previous calibration offset value. The display will now show the platen temperature without any calibration offset.

129 C 255 F

3

A. Press the UP or DOWN Arrow buttons until the temperature readout matches the calibration reading.

B. Press the McDonald’s LOGO button to store the desired calibration and exit CAL TEMP mode.

NOTE: Pressing the Product 3 button at any time exits the

Program mode without storing the change.

CAL 245

Factory Presets

Loading factory presets restores the unit to factory settings and voids all user programmed information.

A. During power up, press and hold both PRODUCT 1 and PRODUCT 4 buttons within 3 seconds. The display will flash PRESETS LOADED.

B. Release both buttons.

Default Factory Presets:

ON OFF Cycles Delay

.5 1 6 2.5

presets loaded

CAL 265 CAL 265

View Firmware Version

Press and hold the McDonald’s LOGO button first, then press and hold the START button.

The display will show the current firmware version.

Manual Reset

A hi-limit thermostat will turn off electrical power to the platen and control circuits if the unit overheats.

Turn the unit off and allow to cool (approximately 10-15 minutes).

A manual reset is located on the back of the unit. Once the unit has cooled sufficiently, remove the cap and press the manual reset to restart unit . Replace the manual reset cap.

NOTE: If the unit continues to shut-off due to overheating, contact your authorized Prince Castle Service Agency.

Manual Reset

. VERS XX.XX

3 Printed in USA 1010 © 2003

Steamer

625-M

FY

Programming Product Name & Water Cycle

The Program button menus can be changed to any of the following menu items.

PROD1 thru PROD12 can be selected to program additional product names.

“– – – –” can be used when no product name selection is desired.

1

A. Press and hold the LOGO button and a PRODUCT button for approximately 6 seconds. The display will show the current assigned product for the button pressed.

NOTE: A decimal point will appear and flash on the right side of the display to indicate Programming mode.

Filet Large PROD1 PROD2 PROD3

PROD4 PROD5 PROD6 PROD7 PROD8

PROD9 PROD10 PROD11 PROD12 – – – –

FILET

2

B. Press the UP or DOWN Arrow button to scroll through the product selections.

C. Press the McDonald’s LOGO button to store the new product name.

To enter custom product names, proceed to step 3.

NOTE: Pressing the Product 3 button at any time exits the

Program mode without storing the change.

3

Press and hold the Prince Castle LOGO button first, then press and hold the McDonald’s LOGO button for 6 seconds.

The display will show the product name with the left-most character display or decimal point flashing.

NOTE: Must be in Programming mode

(See Step 1A).

PROD 1

PROD 1

4

A. Press the UP or DOWN Arrow buttons to change the left-most character.

B. Press the Product 1 or Product 4 button to move the cursor to the next character.

C. Repeat steps A and B for each character.

D. Press the McDonald’s LOGO button to store the new product name.

NOTE: Pressing the Product 3 button at any time exits the

Program mode without storing the change.

PROD 1

5

The display now shows the product’s water valve ON time in seconds.

ON

1.1

CROD 1

CHKN 1

6

A. Press the UP or DOWN Arrow buttons to change the valve

ON time.

B. Press the McDonald’s LOGO button to store the new valve

ON time.

NOTE: Pressing the Product 3 button at any time exits the

Program mode without storing the change.

7

The display now shows the product’s water valve OFF time in seconds.

OFF

2.5

ON 1.1

ON 1.1

Steamer

625-M

FY

9

The display now shows the product’s number of on-off water valve cycles.

8

A. Press the UP or DOWN Arrow buttons to change the valve

OFF time.

B. Press the McDonald’s LOGO button to store the new valve

OFF time.

NOTE: Pressing the Product 3 button at any time exits the

Program mode without storing the change.

CYCLES 2

OFF 3.0

OFF 3.0

10

A. Press the UP or DOWN Arrow buttons to change the number of water cycles.

B. Press the McDonald’s LOGO button to store the new water cycle number .

NOTE: Pressing the Product 3 button at any time exits the

Program mode without storing the change.

11

The display now shows the current product set temperature.

255

CYCLES 3

CYCLES 3

12

Platen temperature can be set between 129°-1 76°C (265°- 350°F).

A. Press the UP or DOWN Arrow buttons to scroll to the desired temperature.

B. Press the McDonald’s LOGO button to store the desired temperature.

NOTE: Pressing the PRODUCT 3 button at any time exits the

Program mode without storing the change.

TEMP 275

Factory Pre-Set Temperatures

Factory pre-set temperatures:

Filet: 176°C (350°F)

Large: 176°C (350°F)

PROD1-12

: 176°C (350°F)

13

The display now shows the time delay between when the product is finished and when the alarm sounds.

The delay can be set for 0.0 to 10.0 seconds.

A. Press the UP or DOWN Arrow buttons to scroll to the desired time delay.

B. Press the McDonald’s LOGO button to store the desired time and to exit the Programming mode. .

NOTE: Pressing the PRODUCT 3 button at any time exits the

Program mode without storing the change.

5

AL DLY 2.5

Error Messages

E

RROR

M

ESSAGES

A

CTION

No Heat Error.

Call service technician.

Steamer

625-M

FY

Cleaning - Daily PM Tasks

WARNING

Turn the unit off and unplug the power cord from the electrical receptacle. Proceed with caution, unit is still hot!

CAUTION

This unit is not watertight. Do not clean with a water jet/jet spray. Do not immerse the unit in water.

Do not use abrasive materials such as scrapers, steel wool, etc. to clean the spatula or steam chamber.

•

•

•

The following equipment is required:

•

•

McD

®

McD

®

All Purpose Super Concentrate (APSC)

Sink Pak Sanitizer McD

®

(Australia only)

McD

®

Delimer™ (as required)

Clean sanitized towel

Protective (insulated) gloves

APC

1

While wearing protective gloves, remove the top cover by pulling up and off the unit.

Top Cover

2

While wearing protective gloves:

A. Remove spatula.

B. Remove the top plate by carefully sliding it forward and out of the unit.

C. Remove the venturi plate.

Top Plate

Spatula

3

A. Wash top cover, top plate, and venturi plate in a solution of

McD ® APSC / APC made up in the back sink.

B. Rinse with clean water, and then sanitize in a solution of

McD

®

Sink Pak Sanitizer.

C. Let air dry.

4

Wipe the steam chamber surface with a clean sanitized cloth.

OPTIONAL: If the surface shows signs of excessive calcium and lime buildup, dissolve two teaspoons of McD

®

Delimer™ in a small coffee cup with 100mI of water. Pour half on each side.

Allow to sit for 5 minutes. Using a clean sanitized towel, thoroughly rinse and wipe the internal surfaces

5

Use brushes to clean the water tube. Dip the brush in warm water or deliming solution. Insert the brush about 1" into water tube and then remove. Repeat for 30 seconds.

Insert brush here.

6

Wash all external surfaces of the steamer with a solution of

McD

®

APSC / APC. Using the McD

®

APSC / APC spray bottle, spray directly onto a clean sanitized towel and wipe the unit clean.

CAUTION

Do not spray directly on the unit or use abrasive cleaners!

Reassemble the unit.

Turn the unit on. When unit is preheated, run a minimum of four cycles to prime the unit and remove any residual cleaner.

It is recommended that the steamers go through a deliming procedure at least once a month. Some hard water areas may require daily, weekly, or biweekly deliming based upon actual buildup.

Steamer

625-M

FY

Cleaning - Monthly PM Tasks

WARNING

Turn the unit off and unplug the power cord from the electrical receptacle. Proceed with caution, unit is still hot!

CAUTION

This unit is not watertight. Do not clean with a water jet/jet spray. Do not immerse the unit in water.

Do not use abrasive materials such as scrapers, steel wool, etc. to clean the spatula or steam chamber.

•

•

•

The following equipment is required:

•

•

McD

®

McD

®

All Purpose Super Concentrate (APSC)

Sink Pak Sanitizer McD

®

(Australia only)

McD

®

Delimer™ (as required)

Clean sanitized towel

Protective (insulated) gloves

APC

1

While wearing protective gloves, remove the top cover by pulling up and off the unit.

Top Cover

2

While wearing protective gloves:

A. Remove spatula.

B. Remove the top plate by carefully sliding it forward and out of the unit.

C. Remove the venturi plate.

Top Plate

Spatula

Venturi Plate

3

A. Wash top cover, top plate, spatula, and venturi plate in a solution of McD ® APSC / APC made up in the back sink.

B. Rinse with clean water, and then sanitize in a solution of

McD

®

Sink Pak Sanitizer.

C. Let air dry.

5

A. Use brushes to clean the water tube.

B . Dip brush in warm water or deliming solution and

Insert the brush about 1" into water tube and then remove.

C. Repeat for 30 seconds.

Insert brush here.

4

Pour a solution of McD

®

Delimer™ (one packet per 16 oz. of hot water) into the steam chamber. Let solution soak for at least 15 minutes . Continue with next step while soaking.

NOTE: Use one packet for monthly cleaning procedure and dispose of the unused solution once the procedure is completed.

In hard water areas that require daily, bi-weekly or weekly cleaning, it is possible to use partial

packets. Two teaspoons of McD

®

Delimer™ can be dissolved in a small coffee cup with 100ml of hot water. The packet can be used for

4 applications.

IMPORTANT. It is not recommended to leave open packets lying around.

6

A

. Rinse with clean water.

B

.

Wash all external surfaces of the steamer with a solution of

McD® APSC / APC. Using the McD® APSC / APC spray bottle, spray directly onto a clean sanitized towel and wipe

C the unit clean.

. Reassemble the unit.

CAUTION

Do not spray directly on the unit or use abrasive cleaners!

NOTE:

In areas that are affected by very hard water, a reverse osmosis

(RO) water filtration system is an option to reduce accumulation of mineral deposits in the steamer. Contact either a KES or

Coca-Cola for recommendations.

21

Steamer

625-M

FY

Exploded View and Parts List

Ref. Part No. Description Qty.

1 625-1

2

29S Spatula Assembly 1

78-233S Switch, Rocker, 20A 1

3 625043S Membrane Switch Assembly 1

4 625-1 58S Cover, Top 1

5 625-130S Gasket, Silicone 1

6 197-232S Legs (Pkg. of - 4)

7 66-045S

8 625-

1

Strain Relief 1

197S Tube, Water 1

9 88-497S Mini-Jack, K-Type 1

10 625-064S Top Plate 1

11 625207S Hi-Limit Thermostat 1

12 625-083S Water Valve Assembly 1

13 625-077S Water Valve Connector Kit 1

14 65-059S Relay, 40A 1

15 625-154S

Power PC Board 1

16 625-065S Venturi Plate 1

17 625-082S Probe, 1000 ohm RTD 1

18 72-3 86S Line Cord Assembly 1

86-329S Tubing Kit (not shown) 1

21 625-097S Spatula Handel Kit 1

625 Accessories

625-103S Coil/Hose Kit (not shown) 1

20 625-242S Regulator Assembly Kit 1

13

TROUBLESHOOTING GUIDE

PROBLEM

Unit will not heat up; “DISPLAY”

is lit. On/Off switch is ON

PROBABLE CAUSE

Loose connections

Unit heats up but will not steam.

Water supply is not connected

Display reads “REMOVE” at end or shut off. Regulator has

of cycle.

pressure set too low

Water delivery tube clogged

Defective main PC board or water solenoid

Water supply line is pinched

Unit steams continuously

Unit is flooded

Bun temperature is too cold

Defective main PC board or water solenoid

Water pressure too high

Defective platen, water solenoid or relay

Water pressure too low

Not enough water CYCLES

REMEDY

Check continuity wiring

Disconnect water line and check if water is flowing through main water supply. Check water pressure at regulator to ensure unit is receiving water.

Replace water tube

Call service technician

Straighten water line

Call service technician

Turn input water regulator to between 20 and 30 PSI

Call service technician

Bun temperature is too hot

Water ON cycle too short

Partially clogged water tube

Water pressure too high

Water ON cycle too long

Too many water cycles

Turn input water regulator to between 20 and 30 PSI

Check for proper programming of Filet steam cycles

Increase number of CYCLES until desired results are reached

Check for proper programming of Filet steam cycles

Increase ON time until desired results are reached

Clean/de-lime the water tube

Turn input water regulator to between 20 and 30 PSI

Check for proper programming of Filet steam cycles

Decrease ON time until desired results are reached

Check for proper programming of Filet steam cycles

Decrease number of CYCLES until desired results are reached

Not enough moisture in bun

Too much moisture in bun

Water pressure too low Turn input water regulator to between 20 and 30 PSI

Platen not hot enough

Water ON cycle too short

Increase platen temperature

Check for proper programming of Filet steam cycles

Increase ON time until desired results are reached

Not enough water CYCLES Check for proper programming of Filet steam cycles

Increase number of CYCLES until desired results are reached

Water OFF cycle is too short Check for proper programming of Filet steam cycles

Increase OFF time until desired results are reached

Partially clogged water tube Clean/de-lime water tube

Out of date buns Use fresh buns

Water pressure too high

Water ON cycle too long

Too many water CYCLES

Water OFF too long

Turn input water regulator to between 20 and 30 PSI

Check for proper programming of Filet steam cycles

Decrease ON time until desired results are reached

Check for proper programming of Filet steam cycles

Decrease number of CYCLES until desired results are reached

Check for proper programming of Filet steam cycles

Decrease OFF time until desired results are reached

Completely push tube into valve until you feel it click Water is leaking from behind the Water tube not properly

unit pushed into valve

Faulty water valve Call service technician

Date: October 27, 2003

To: Service Managers, Engineers, and Technicians

Subject: Technical Troubleshooting Guide for 625-MFY

Attached is the troubleshooting guide for the 625-MFY Rapid Steamer used by

McDonald’s.

To access internal components of the steamer:

Caution: Unit may be hot!

Remove the spatula, covers, and venturi plate. Remove the back screen from behind the platen (This will allow the unit to lay relatively flat when turned over. This is important when reassembling the unit). Turn unit upside down and remove 5 screws holding the access panel. Use caution when removing the access panel so that you do not dislodge

the ribbon cable underneath. New steamers have a sticker on the unit reminding technician to be careful of the ribbon cable, but some of the older models do not.

Opening the access panel allows access to the power board, relay, display board and membrane switch assembly, and the power switch.

To access the rest of the internal components, you must first open the access panel and disconnect the white ribbon cable from the power board. Also, you must remove the rear cover plate and remove the water tube from the unit. Remove the remaining screws from the bottom and sides of the unit and lift the bottom of the chassis from the top and fold open, revealing the underside of the platen and the rest of the internal components.

Please note that the water tube is a consumable item and is not covered by the warranty.

If you have any questions, please contact the

Prince Castle Service Department.

Prince Castle, Inc.

355 E. Kehoe Blvd. • Carol Stream, IL 60188

Ph: (630) 462-8800 • Fax: (630) 462-1460

Toll Free: 800-323-2930

11 Prince Castle, Inc.

625-MFY Troubleshooting Guide

CAUTION! UNIT MAY BE HOT!

Use caution when unit is operating as it produces and emits steam.

Disconnect power to unit prior to doing ANY service work.

Heating Conditions

Symptom

No heat; display is not lit; On/Off rocker switch is in “On” position but is not illuminated.*

*Some units do not have a lighted rocker switch.

Verify that switch is in

“On” position.

Possible Cause

Unit not plugged into

208/240 volt, 50/60 Hz, 30 amp outlet

Check or Test

Verify that the switch is in the “On” position and that the light on the switch is illuminated.

No power to the outlet Circuit breaker is off or has been tripped

Defective power cord Measure resistance across the prongs of the power cord. The resistance should be 127 ± 5 Ω.

Defective On/Off switch Check voltage across

Loose connection(s) terminals 1 and 2 of power switch. If there is no voltage when the unit is

“On”, switch is defective.

Continuity of wiring

No heat; display is not lit; On/Off rocker switch is in “On” position and is illuminated. *

*Some units do not have a lighted rocker switch.

Verify that switch is in

“On” position.

Ribbon cable disconnected or defective.

Verify that white ribbon cable between the display and power board is properly connected and undamaged.

Remedy

Plug in power cord

Turn on or reset circuit breaker

Replace power cord.

Replace On/Off switch

Tighten or replace as needed.

Connect ribbon cable or replace display board.

12 Prince Castle, Inc.

Unit will not heat; display is lit; On/Off switch is lit.

No heat; display is not lit; On/Off rocker switch is in “On” position and is illuminated (cont.)

Hi-Limit Thermostat is tripped.

Defective power board

Reset Hi-Limit thermostat.

If unit does not reset, measure continuity of Hi-

Limit Thermostat by disconnecting wires from the Hi-Limit and measuring across the two contacts. A good switch will have a resistance reading of about 2 Ω.

Verify voltage input to board by measuring voltage output from solid state relay and the continuity of the connecting cable. Measure voltage output on power board between J1-2 and

J6-2 (5 V output) and between J1-2 and J21-1

(12 V output). If there is voltage input to the board, but not output, the board is defective.

Defective display board Check that the ribbon cable between the power board and the display board is properly connected and there is no damage to the cable.

Continuity of wiring Loose connection(s)

Defective power board During a steam cycle, measure the voltage between pins 1 & 2 and between pins 3 & 4 of J6.

If either voltage measurement is less than 4 volts the board is defective.

Defective solid-state relay Start a steam cycle and measure the voltage on the output terminals of the relay. The voltage output

Defective probe should be more than 200V.

If there is no voltage the relay is defective.

Press temperature button on display. If display constantly reads 385°F

(196°C) or higher, the probe is open.

Reset Hi-Limit

Thermostat or replace if necessary.

Replace power board.

Reconnect ribbon cable or replace display board.

Tighten or replace.

Replace the power board.

Replace the solid state relay.

Replace probe.

13 Prince Castle, Inc.

Unit will not heat; display is lit; On/Off switch is lit.

Defective platen

Flooded platen.

With power off, measure the resistance across the platen heater terminals.

The resistance should be about 15.5 Ω. If there is no resistance reading, the platen is defective.

Remove spatula, cover, and venturi plate and check if water is continuously seeping onto platen. Steam will be generated continuously while unit is on.

Replace the entire unit.

Replace water valve.

Unit Appears to be

Heating But Buns Feel

Cold After Steam Cycle.

Defective probe

Venturi plate is in wrong position or clogged.

Check temperature display.

If temperature constantly reads 385°F (196°C) or higher, the probe is open.

Verify that venturi plate is in the correct position and clean holes on the venturi plate.

Replace probe assembly

Verify position of venturi plate or clean holes on the venturi plate.

Weeping water valve.

Water supply not connected or shut off.

Water regulator is blocked or supply line from regulator is blocked.

Loose wiring connection to water valve.

Remove spatula, cover, and venturi plate. Check if water is continuously seeping onto platen. Steam will be generated continuously while unit it on. If unit is left off for a long period of time, this could also cause the platen to flood.

• Water connection at regulator.

• Water supply line is damaged.

• Water supply is on and flowing.

Examine supply line for blockage. Remove quick disconnect fitting from back of unit and depress the insert on fitting. Water should flow from fitting.

Check continuity of valve coil. Ensure 2 pin connector from water valve is seated properly at

J21 on power board.

Replace water valve.

• Connect water supply.

• Contact Coca-Cola Co. concerning problems with the water supply line.

Replace supply line or water regulator.

Tighten or replace as needed.

14 Prince Castle, Inc.

Unit Appears to be

Heating But Buns Feel

Cold After Steam Cycle.

Defective water valve

Clogged water tube

Defective power board

One bun is warm and the other is cold.

Unit is not level

Venturi plate clogged.

Disconnect metal water tube from discharge side of valve. Start a steam cycle.

If the water valve operates, water should discharge from the valve (Use a small cup to catch water so that it does not damage the

Hi-Limit Thermostat).

Replace water valve.

Check valve to make sure water discharges (see above) then reattach water tube. Remove the spatula, cover, and venturi plate.

Start a steam cycle and watch if water is discharged onto the platen.

Turn unit off. Wait until display goes blank. Turn unit back on and immediately measure voltage at 2 pin water valve connection on power board, during the 3 second initialization cycle. If voltage is less than 10 volts during steam cycle, replace power board.

Screw feet into base completely and then adjust so that unit sits completely level. Remove cover, spatula, and venturi plate and initiate steam cycle.

Verify that water is diverted equally to both sides of the platen.

Clean holes in venturi plate.

Replace water tube*.

*Water tube is a consumable item and not covered by warranty,

Replace power board.

Level unit.

Clean holes in venturi plate.

Unit overheats* or Hi-

Limit Thermostat trips after being reset.

*Using the Mini-jack connector or a surface probe on the platen, it is possible to monitor the unit temperature while it is heating.

Defective Hi-Limit

Thermostat

Lime scale buildup on platen.

15

Check voltage across platen heater terminals. If there is no power, reset the

Hi-Limit Thermostat and check again (Platen will need to cool to below

300°F/148°C before Hi-

Limit Thermostat can be reset).

Ask store to remove spatula, cover, and venturi plate and examine platen for scale build up.

Replace Hi-Limit

Thermostat.

Store should clean platen with de-liming solution.

Prince Castle, Inc.

Unit overheats* or Hi-

Limit Thermostat trips after being reset (cont.).

Defective solid state relay. Start a steam cycle and measure the voltage on the output terminals of the relay. The voltage output should be more than 200V.

If there is no voltage the relay is defective.

Defective relay cable

Defective power board

Check continuity between pins of cable connecting solid state relay and power board.

Verify voltage input to

Venturi plate is in wrong position or clogged. power board by measuring voltage output from solid state relay and continuity of connecting cable (see above). Measure voltage output on power board between J1-2 and J6-2 (5

V output) and between J1-

2 and J21-1 (12 V output)

If there is voltage input to the board, but not output, the board is defective.

Verify that venturi plate is in the correct position and clean holes on the venturi plate.

Replace solid state relay.

Replace power board.

Replace power board.

Verify position of venturi plate or clean holes on the venturi plate.

Display reads “PRE-

HEAT” and doesn’t reach set point temperature, or takes more than 1 hour to reach temperature.

Defective Probe If temperature display constantly reads 60°F

(15°C) or lower, the probe if shorted. Check for shorted probe wires and repair or replace.

Repair or replace probe as necessary.

Weeping water valve

16

Remove spatula, cover, and venturi plate. Check if water is continuously seeping onto platen. Steam will be generated continuously while unit it on. If unit is left off for a long period of time, this could also cause the platen to flood.

Replace water valve.

Prince Castle, Inc.

Water Conditions

Symptom

No water or not

enough water

Too much water, platen flooding, constant steaming or buns are too wet

Possible Cause

Water supply not connected or shut off.

Check or Test

• Water connection at regulator.

• Water supply line is damaged.

• Water supply is on and

Loose wiring connection to water valve. flowing.

Check continuity of wiring.

Ensure 2 pin connector from water valve is seated properly at J21 on Power board.

Defective water valve Disconnect metal water tube from discharge side of valve.

Clogged water tube

Start a steam cycle. If the water valve operates, water should discharge from the valve (Use a small cup to catch water so that it does not damage the Hi-Limit

Thermostat).

Check valve to make sure water discharges (see above).

Reattach water tube and remove the spatula, cover, and venturi plate. Start a steam cycle and watch if water is discharged onto platen.

Defective power board Measure voltage at 2 pin water valve connection on power board. If voltage is less than

10 volts during steam cycle,

Regulator pressure set too high or faulty regulator replace power board.

Verify that regulator pressure is set between 25 – 30 psi.

Venturi plate is in wrong position or clogged.

Verify that venturi plate is in the correct position and clean holes on the venturi plate.

Remedy

• Connect water supply.

• Contact Coca-Cola

Co. concerning problems with the water supply line.

Tighten or replace as needed.

Replace water valve.

Replace water tube*.

*Water tube is a consumable item and not covered by warranty.

Replace power board

Adjust or replace regulator

Verify position of venturi plate or clean holes on the venturi plate.

Replace water valve Weeping water valve Remove spatula, cover, and venturi plate. Check if water is continuously seeping onto platen. Steam will be generated continuously while unit is on.

Defective power board Disconnect water valve connection at J21 on power board. Measure voltage at those points on board. The reading should not be less than 10 volts.

Replace power board

17 Prince Castle, Inc.

Other Conditions

Symptom

Non-responsive keypad

No audible signal

Resetting to default program

Possible Cause Check or Test

Disconnected ribbon cable or defective membrane switch

• Verify that ribbon cable is connected.

• Verify that unit is on and heating and that water line is connected.

Defective power board There should be an audible signal at the beginning and end of each steam cycle.

Turn unit off. Wait for display to go blank. Turn unit back on and immediately press and hold the number 1 button and the number 4 button for 3 seconds. Display will flash “PRESETS

LOADED”. Release both buttons.

Remedy

• Connect ribbon cable.

• Replace Membrane

Switch Assembly.

Replace power board

18 Prince Castle, Inc.

What You Need To Know

About Your New Steamer

Operation

- Steams two (2) buns in 11 seconds

- To steam your buns:

1) After the steamer has warmed up and the display reads, “FILET,” load buns CUT SIDE DOWN on spatula. Make sure that buns are centered on holes on spatula.

Note: if the display reads, “----------” and the

steam cycle will not begin, press the 1 button.

(Do not press the other numbered buttons).

2) Press START.

3) Remove buns when display reads, “REMOVE” and alarm has sounded.

- Water pressure should always be between 20-30 PSI.

Operation Tips

- Steamed buns should have an internal temperature of at least

170 o F.

- When first turning on the unit, let it warm-up for 20 minutes with the spatula fully inserted to ensure optimal performance.

- Always use fresh buns.

Steamer Hot Points

CAREFUL!

Some surfaces are hot.

Cleaning

Daily

- Wash top cover, venturi plate and top plate in the sink with McD ASPC / APC. Then sanitize in McD

Sink Pak Sanitizer. Lastly, let air dry.

- Wipe steam chamber with sanitized cloth

- Wipe down all external surfaces with McD ASPC / APC.

- Use steamer brush to clean the water tube.

Monthly

- Delime the steam chamber.

Note: Depending on your water conditions, you may need to de-lime the platen as frequently as once a week.

- Clean/de-lime the water tube.

HOT

HOT

HOT

Do NOT operate without cover.

Exposed parts may reach extremely hot temperatures.

Warranty

- Two-years parts and labor

- Items not covered under warranty

Water tubes

Abuse to unit, including bent covers and spatulas

355 E. Kehoe Blvd.

Carol Stream, IL 60188 USA

(800) PCASTLE - (630) 462-8800

Fax: 630-462-1460

19 Printed in USA 1003 © 2003

625-MFY Rapid Steamer

Connection of Two Steamers

For stores that want to install two steamers, they will need to use the T-Connect Kit. The T-Connect Kit connects the inlet water line to both the steamers.

To Steamer Closest to Inlet Water Line

To Steamer Farthest

From Inlet Water Line

To Inlet Water Line

1 Connect the shorter end of T-Connect to the steamer whose regulator is closest to the inlet water steamer’s male end.

3 Connect the longer end of T-Connect to the steamer whose regulator is farthest from the inlet water line. T-Connect’s female end to steamer’s male end.

2 Place the long end of the T-Connect tubing in between the two steamers.

4 Finally, connect the inlet water line’s female end to the T-Connect’s male fitting. The two steamers have been connected to the inlet water line. Set both steamers’ regulators to 25 psi.

Printed in October 2003

Prince Castle Inc.

355 East Kehoe Blvd. l Carol Stream, IL 60188

Tel: (630) 462-8800 l Fax: (630) 462-1460

Toll Free: 1-800-PCASTLE www.princecastle.com

.

20

625-MFY Rapid Steamer

Water Tube Cleaning

In areas that have very hard water conditions, scale can accumulate in the water tube, preventing proper water dispensing. Thus, the water tube should be cleaned during the de-liming process as well as during the daily cleaning. It is recommended that the steamers go through a de-liming procedure once a month.

Some hard water areas may require daily, weekly, or bi-weekly deliming based on actual build-up.

WARNING:

Turn unit off and unplug the power cord from the electrical receptacle. Proceed with caution. The unit is still hot.

Items needed:

- McDonald’s de-limer

- Insulated gloves

- Steamer brushes

3 Insert and remove brush into and out of the water tube to disintegrate any scale build up in the tube. Insert the brush at least 1 inch into the tube.

Repeat for 30 seconds.

CAUTION:

The platen is still hot!

1

Immediately after turning off the unit, prepare the de-liming solution. Add one packet of McD De-Limer to 16 ounces of warm water. To ensure that all of the delimer dissolves, stir solution vigorously. Remove top cover, venturi plate, spatula and top plate.

WARNING: These pieces are hot.

Pour the De-Limer into the steam chamber.

2

Let solution soak on the platen for five minutes.

While deliming the platen, dampen the bristles of the brush by dipping them in de-limer solution.

4

If the tube is severely clogged, the tube will need to be removed from the unit and replaced. Refer to the Water Tube

Replacement Instructions found in the equipment owner’s manual. Additional copies can be ordered from Prince

Castle.

Printed in October 2003

Prince Castle Inc.

355 East Kehoe Blvd. ! Carol Stream, IL 60188

Tel: (630) 462-8800 ! Fax: (630) 462-1460

Toll Free: 1-800-PCASTLE www.princecastle.com

2 1

.

625-MFY Rapid Steamer

Water Tube Replacement

Stores that have harder water in their areas, may experience scale build-up in their water tubes, thus clogging the tube and preventing water from being dispensed into the steaming chamber. If the tube needs to be replaced, this sheet will illustrate how to replace the water tube.

1

First, turn off and unplug steamer. Let steamer cool down. To remove the cover plate that shields the water tube, use a

Philips head screw driver to remove the two screws, Next, take off the back plate to access the water tube.

4

To insert the new tube, first insert the top end through the hole that leads to the platen. The tube will fit through the insulating sleeve.

2

To pull the tube out from the water valve, push in the grey disk on the water valve and then slowly slide the tube from the water valve.

Grey disk is here at end of valve

3 Using pliers, gently pull the tube out from the platen. You may need to softly rock it back and forth. Replace the black insulating sleeve if the original sleeve pulled out with the water tube.

To re-install the sleeve, lubricate it with water and push it back into the opening. CAUTION:

Platen must be cool.

5

Push the other end of the tube into the water valve. Ensure that you feel it click into place. Gently tug on the water tube to check if it is secure. If the tube slides out, re-install the tube. If tube is improperly installed, water will leak at this point.

6 Finally, re-install the cover plate. Turn on unit and begin a water cycle to check for leaking at the water valve. If leaking occurs at the back panel of the steamer, turn off unit and repeat

Step 5.

Printed in October 2003

Prince Castle Inc.

355 East Kehoe Blvd. ! Carol Stream, IL 60188

Tel: (630) 462-8800 ! Fax: (630) 462-1460

Toll Free: 1-800-PCASTLE www.princecastle.com

2 2

.

Notes

Steamer

625-M

FY

23