Marshall HST13 User Manual

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

Supplier Name: MARSHALL AIR SYSTEMS, INC. Address: 419 Peachtree Drive South Charlotte, NC 28217 Serial#: ___________________________ Date Received: ___________________________ Date Installed: ___________________________ Telephone #: 704-525-6230 Fax #: 704-525-6229 Service Referral# 800-722-3474 Local Service Name: ___________________________ Local Service #: ___________________________ Conveyor Speed Setting: ___________________________

PRODUCT DESCRIPTION

The Marshall High Speed Vertical Toaster produces a grilled effect on the cut side of the sandwich buns.

GENERAL SPECIFICATIONS

The buns are inserted at the top of the unit and are pressed against a heated platen surface, which is

Height: 23.250"

covered by a replaceable toaster platen sheet. The

Width: 19.875"

spacing between the heated grill and the conveyor is

Depth: Model CH7B-12”, CH7-15.250”

adjustable to accommodate different thickness of

Model CH7C-12”, CH7D-12”, CH7F-12”,

buns. The buns are discharged onto a product slide

CH7G-12”, CH7H-12”

at the bottom of the unit. Toaster Models CH7,

Electrical: 208V Single Phase 18.5 Amps

CH7B, have variable speed motor controls. Models

240V Single Phase 21.0 Amps

CH7C, CH7D have single speed motors. Toast time

Power Cord: 6 ft. 3 wire including ground, with NEMA

on the CH7C toaster is 8 seconds heel, and 11

L6-20Pplug (208V) (CH7C Models L6-

seconds crown. The CH7D toaster has a toast time

30p 30P)(CH7H Models NEMA 6-20P)

of 23 seconds on both the crown and heel. The

(Plug furnished by others on

CH7F toaster has a toast time of 9 seconds on both

internationsl International units) (CH7CINTLCE

the crown and heel. The CH7F-15 toaster has a

NEMA NEMA L6-30P)

toast time of 15 seconds on both the crown and heel.

Weight: 116 lbs.

The CH7G toaster has a toast time of 3.5 minutes.

Listing: ETL and NSF

The CH7H has a 60 second toast time. Additionally, the heat settings are preset in factory, which eliminates unauthorized tampering. The flexibility of this toaster is unmatched allowing operations to produce the hottest buns in the shortest time.

FOR YOUR SAFETY

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.

WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, OR MAINTENANCE

CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THE INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT.

KEEP THIS MANUAL IN A SAFE PLACE AND RETAIN FOR FUTURE USE.

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

TABLE OF CONTENTS

PRE INSTALLATION.....................................................................................................................................1

INSTALLATION......................................................................................................................................... 1-2

OPERATION (UNITS WITH LED CONTROL)...............................................................................................2

OPERATION (UNITS WITH HEAT SWITCH AND CONVEYOR SWITCH)..................................................3

PREVENTIVE MAINTENANCE................................................................................................................. 3-4

TROUBLESHOOTING GUIDE.................................................................................................................. 4-8

REPLACEMENT PARTS........................................................................................................................... 8-9

ILLUSTRATIONS

OVERALL DIMENSIONS ...........................................................................................................FIGURE 1, 2

HANG-ON PARTS S/N 0598 AND BEFORE .................................................................................FIGURE 3

HANG-ON PARTS S/N 0599 AND AFTER ....................................................................................FIGURE 4

SWITCHES AND TOASTER PLATEN SHEET.............................................................................. FIGURE 5

BELT TENSION PARTS AND ADJUSTMENT MECHANISM........................................................FIGURE 6

INTERNAL PARTS AND DRIVE COMPONENTS ......................................................................... FIGURE 7

ADJUSTMENT LEVER OPERATION.............................................................................................FIGURE 8

BELT REMOVAL INSTRUCTIONS................................................................................................FIGURE 9

NON-GUIDED BELT INSTALLATION INSTRUCTIONS..............................................................FIGURE 10

NON-GUIDED BELT INSTALLATION INSTRUCTIONS..............................................................FIGURE 11

GUIDED BELT REMOVAL AND INSTALLATION INSTRUCTIONS............................................FIGURE 12

CONTROL CABINET ACCESS INSTRUCTIONS........................................................................FIGURE 13

WEEKLY BELT CLEANING INSTRUCTIONS (150986)..............................................................FIGURE 14

SCHEMATICS FOR UNITS S/N 0929 AND AFTER (UNITS W/LED CONTROL)

WIRING SCHEMATIC (208V, 60HZ, 1PH) VARIABLE SPEED..............................................DWG #143851

WIRING SCHEMATIC (208V, 60HZ, 1PH) SINGLE SPEED..................................................DWG #143856

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

ILLUSTRATIONS (CONTINUED)

WIRING SCHEMATIC (240V, 60HZ, 1PH) DOMESTIC VARIABLE SPEED..........................DWG #143857

WIRING SCHEMATIC (240V, 50/60Hz, 1 PH) SINGLE SPEED………………………………..DWG #142426

WIRING SCHEMATIC (220V, 50/60Hz, 1PH) SINGLE SPEED(ECM CONTROL) ................DWG #144562

WIRING SCHEMATIC (220V, 50/60Hz, 1PH) SINGLE SPEED (LED CONTROL) ................DWG #144577

WIRING SCHEMATIC (220-240V, 50/60Hz, 1PH) VARIABLE SPEED (LED CONTROL).....DWG #145737

SCHEMATICS FOR UNITS S/N 0928 AND BEFORE

WIRING SCHEMATIC (208V, 50/60Hz, 1PH).........................................................................DWG #135169

WIRING SCHEMATIC (240V, 50/60Hz, 1PH) CE...................................................................DWG #135817

WIRING SCHEMATIC (240V, 50/60Hz, 1PH) DOMESTIC.....................................................DWG #143180

WIRING SCHEMATIC (240V, 50/60Hz, 1PH).........................................................................DWG #138828

WIRING SCHEMATIC (208V, 50/60Hz, 1PH)SINGLE SPEED….…………………………..….DWG #141334 WIRING SCHEMATIC (208V, 50/60Hz, 1PH)VARIABLE SPEED………………………… ….DWG #145294

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

PRE-INSTALLATION

1. The toaster is packaged to minimize the risk of shipping damage. Immediately upon receipt, make certain to inspect the unit for damage. FILE ALL CLAIMS WITH THE FREIGHT CARRIER.

2. Unpack unit and remove all protective paper or plastic from metal parts.

FILE ANY CONCEALED DAMAGE CLAIMS WITH THE FREIGHT CARRIER.

3. This toaster is shipped wired and ready to plug into a grounded NEMA L6-20R amp receptacle. (208 Volt Single Phase, 3 wire including the ground circuit). Check receptacle for proper voltage and phase. Units which are 240V single phase international are shipped with no electrical plug.

INSTALLATION

1. It is necessary to seal bottom of toaster to the countertop using NSF listed silicone sealant.

2. Check that the two lift off side covers are in place on the toaster AND THE LEFT COVER IS SECURED WITH A SCREW AT THE BOTTOM.

3. Check that the toaster platen sheet is installed over the contact platen. The toaster platen sheet is installed from the top of the unit by lightly creasing it at the center, and directly hanging it on the center platen. USE ONLY MARSHALL APPROVED PLATEN SHEETS OR TOASTER WARRENTY IS VOID.

4. Install the bun guide assembly on the toaster. (Figure 4)

5. Connect the toaster to the power supply.

6. Turn on the power switch and check for free movement of the two conveyor belts. If unit is equipped with LED control, display will read “Lo.”

7. Unit is ready to used in approximately 15 minutes. LED control will display “Rdy.”

8. After warm up, drop buns into the toaster at the top of the unit. For proper operation, insert heels on the side of the toaster marked "Heel", and crown on the opposite side. THE CUT SIDES OF

THE HEEL AND CROWN MUST FACE EACH OTHER. DO NOT USE PRE-BUTTERED BUNS WITH THIS TOASTER.

9. The toasted heel and crown will drop down onto the product slide together. Check the appearance of the toasted buns.

10. Adjust the gap settings using the two levers inside the right panel. (See Figure 8). The levers are labeled “HEEL” gap and “CROWN” gap. To adjust the gap, loosen the black adjustment knob (Figure 8), several turns to disengage the threaded rod from the locator holes. Turn the lever to the desired position and retighten the black knob so that the threaded rod engages in one of the locator holes.

11. The speed control is located behind the left side cover of the CH7, CH7B toasters only. DISCONNECT (UNPLUG) THE POWER BEFORE OPENING THE SIDE COVER. The speed control can be adjusted to control the conveyor belt speed to lighten and darken the toasted product. The toaster is shipped with the speed control set for a twelve-second toast. Models

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

CH7C and CH7D have a single speed motor. CH7C models have a toast time of a 8 seconds heel and 11 seconds crown. CH7D models have a speed of 23 seconds both crown and heel. CH7F has a 9 second toast time both crown and heel. The CH7F-15 has a 15 second toast time. CH7G models have a 3.5 minute toast time both crown and heel.

12. Test at least 3 buns before putting the toaster into service. Uniform surface toasting and bun temperature are achieved when the gap described in step 10 is set correctly.

OPERATION (UNITS WITH LED CONTROL)

1. The toaster is operated by pressing and releasing the “I/O” Button of the control. “Lo” will be displayed.

2. The display of the control will show “Rdy” once the toaster is up to temperature. (Approximately 15 minutes.)

3. For proper operation, insert heels on the side of the toaster marked "HEEL", and crowns on the opposite side.

4. To turn off, press and to remove any parts. Once the toaster has cooled (approximately 30 minutes), the display will show “Off.”

5. The LED Control will indicate important information:

A. Press and release either the Crown or the Booster Button, the pre-programmed

temperature settings will flash. This will display for 5 seconds or until another button is pressed.

B. Press and hold either the Crown or the Booster Button for 3 seconds, the actual platen

temperatures will be displayed. This will display until another button is pressed.

6. Definitions of various displays:

“Off” Unit is off and not operating. “Lo” Heater platens have not reached programmed set temperature. “Rdy” Unit has reached programmed set temperature and is ready to toast. “Hi” Unit is off and too hot to touch most removeable parts. “AL1” This is an alarm message that indicates the Center Platen Probe is disconnected

“AL2” This is an alarm message that indicates the Booster Platen Probe is disconnected

“AL3” This is an alarm message that indicates the Center Platen is too hot. Normally

“AL4” This is an alarm message that indicates the Booster Platen is too hot. Normally

hold the “I/O” Button. “Hi” will be displayed which means unit is still too hot

or defective.

this means the relay has failed. Unit shuts off.

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

OPERATION (UNITS WITH HEAT SWITCH AND CONVEYOR SWITCH)

1. The toaster is operated by turning on the power switch and then the heat switch.

2. Allow the toaster to warm up for approximately 15 minutes before toasting buns.

3. For proper operation, insert heels on the side of the toaster marked "HEEL", and crowns on the opposite side.

4. Turn unit off at the end of the day.

5. Toaster Platen Sheet General Information:

A. The toaster is not designed for use with buttered buns. B. The life of the Toaster Platen Sheet depends on usage and cleaning. C. If the sheet is turning white, the black pigment is fading out of the sheet and does not

mandate sheet replacement.

D. When buns no longer feed through the machine but instead are damaged or torn, the

toaster platen sheet should be replaced. Replace ONLY with Marshall toaster platen sheet.

E. To obtain maximum life, rotate the sheet daily so the “HEEL” side is opposite from the day

before.

F. USE ONLY MARSHALL APPROVED PLATEN SHEETS OR TOASTER WARRANTY IS

VOID. CAUTION: DO NOT REMOVE THE CONTROL PANEL COVER WITHOUT FIRST TURNING OFF THE TOASTER AND UNPLUGGING THE TOASTER.

PREVENTIVE MAINTENANCE DAILY:

1. Carefully remove the toaster platen sheet (Figure 5), lay it on a flat surface, and wipe with a soft cloth or towel and clean with soap and water. Use ONLY enough water to make the cloth damp. DO NOT USE ABRAVISES ON THE TOASTER PLATEN SHEET.

2. Rotate toaster platen sheet so the “HEEL” side is on the “CROWN” side, opposite than the day before.

3. Re-install all parts after drying.

WEEKLY:

1. Turn toaster off and unplug power cord from wall receptacle.

2. Perform daily maintenance.

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

3. Remove the front and back covers (Figure 3,4), by lifting these covers off the toaster. Clean these covers with soap and water. Wipe the exposed metal parts with a damp soft cloth or towel.

4. Reconnect the power cord.

5. Clean belts according to the Belt Cleaning Procedures below. Do not scrub belts with abrasive material.

6. Install the front and rear covers.

WEEKLY BELT CLEANING INSTRUCTIONS

TEMPERATURE.

Supplies Needed: Cleaning Agent: Scotch-Brite™ Quick Clean Griddle Liquid #700-40.

Cleaning Pad: Scotch-Brite™ All Purpose Scouring Pad #9488R. Contact a Marshall parts distributor or your restaurant supplies dealer to get these products

NOTE: TOASTER BELTS MUST BE CLEANED WHILE TOASTER IS AT OPERATING

Contact a Marshall parts distributor or your restaurant supplies dealer to get these products.

SEE FIGURE #14 FOR BELT CLEANING INSTRUCTIONS. MONTHLY:

1. Perform Daily and Weekly Maintenance.

2. Replace any worn out toaster platen sheets or conveyor belts with Marshall parts. USE ONLY

MARSHALL APPROVED PLATEN SHEETS OR TOASTER WARRANTY IS VOID.

QUARTERLY:

1. Inspect motor brushes on variable speed models. If ¼” in length or less, replace with new.

2. Lubricate the drive chain with drops of any grade motor or machine oil.

TROUBLE SHOOTING GUIDE

NOTE: SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE COMPANY. THE

TERM "QUALIFIED SERVICE COMPANY" MEANS ANY INDIVIDUAL, FIRM, CORPORATION OR COMPANY WHICH IS EITHER ENGAGED IN AND IS RESPONSIBLE FOR THE INSTALLATION OR REPLACEMENT OF ELECTRICAL COMPONENTS, OR THE CONNECTION, INSTALLATION OR REPAIR OF ELECTRICAL APPLIANCES, WHO IS EXPERIENCED IN SUCH WORK, FAMILIAR WITH ALL PRECAUTIONS REQUIRED, AND HAS COMPLIED WITH ALL THE REQUIREMENTS OF THE AUTHORITY HAVING JURISDICTION.

OWNER’S MANUAL

MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER

WARNING: INSPECTION, TESTING, AND REPAIR OF ELECTRICAL EQUIPMENT SHOULD BE

PERFORMED BY QUALIFIED SERVICE PERSONNEL. THE UNIT SHOULD BE UNPLUGGED WHEN SERVICING, EXCEPT WHEN ELECTRICAL TESTS ARE REQUIRED.

DANGER: USE EXTREME CARE DURING ELECTRICAL CIRCUIT TESTS. LIVE CIRCUITS

WILL BE EXPOSED. WHERE TESTING INDICATES "WITH POWER OFF", BE SURE THAT THE CONVEYOR AND HEAT SWITCHES ARE OFF AND TOASTER IS UNPLUGGED.

PROBLEM:

1. No heat and conveyor belts do not move. SOLUTION:

A. Check that toaster is plugged in. Check condition of power cord and plug. B. Check that conveyor power switch is on. C. Check circuit breaker in main breaker panel. Reset if necessary. D. Check that there is power at receptacle. Verify voltage is correct based upon the voltage listed on

the toaster nameplate.

E. Verify voltage is flowing through conveyor switch. F. WITH UNIT UNPLUGGED,

check wiring. Any wires or terminals with burns or discoloration from arcing should be replaced. All wiring, if replaced, should be same or higher rated wire.

G. If equipped with LED control, check for error message. “AL1” message is a defective center

platen probe. “AL2” is a defective booster platen probe. “AL3” is high temperature error of the center platen. “AL4” is high temperature error of the booster platens. “AL3” and “AL4” typically means the solid state relay is defective.

PROBLEM:

2. Conveyor belts move but no heat. SOLUTION:

A. Check that the unit is on. B. Verify voltage is flowing through heat switch. C. TURN OFF SWITCHES AND UNPLUG TOASTER. Remove left and right side covers. Remove

one screw and loosen one screw as shown in Figure 13. Lay unit on the left side (drive chain side). Swivel the bottom of control cabinet open.

D. Check for loose connections at terminal strip and temperature terminals (see schematic). E. Verify that the heater and sensor wires are connected to the proper controller. F. Replace all connections or components that have damaged terminals. Replace any damaged

wiring with same or higher rated wire.

G. Check the resistance of the sensor(s) (#503630). If sensor is open, replace. If LED, 1.09k ohms

at room temperature. If switch, 108k ohms at room temperature.

H. If equipped with LED control, check voltage into solid state relays. The voltage input from module

should be approximately 5Vdc. Voltage to heater should be 208Vac.

I. Check the resistance of the heater platens:

Center Platen (#139476): 20 ohms at room temperature Boost Platens (#503645): 54 ohms at room temperature each

check connections inside of plug. Remove switch side, side panel and

+ 19 hidden pages

Marshall HST13 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual