Jackson HT-1 User Manual

Jackson MSC, Inc.

P.O. BOX 1060

BARBOURVILLE, KY. 40906

FAX (606) 523-9196

PHONE (606) 523-9795

Company

CHEMICAL DISPENSING UNIT

TECHNICAL MANUAL

INSTALLATION MANUAL FOR DOMESTIC UNITS

INSTALLATION MANUAL FOR EXPORT UNITS

SERVICE MANUAL FOR DOMESTIC UNITS

FOR JACKSON MODELS:

HT-1

HT-2

LT-1

LT-3

An

June 29, 2004 P/N 7610-002-54-60 (Revision D)

HWY. 25E

www.jacksonmsc.com

REVISION

D 06-29-04 MAW N/A CONVERTED TO NEW LAYOUT

REVISION

DATE

MADEBYAPPLICABLE

ECN

DETAILS

i

NOMENCLATURE FOR THE MODELS COVERED IN THIS MANUAL:

LT-3

HT-1 = Detergent dispensing unit for high temp dishmacines. HT-2 = Detergent and rinse aid dispensing unit for high temp dishmachines. LT-1 = Sanitizer dispensing unit for low temp dishmachines. LT-3 = Detergent, rinse aid, and sanitizer dispensing unit for low temp dishmachines.

Model:

Serial No.:

Installation Date:

Service Rep. Name:

Phone No.:

Jackson MSC Inc. provides technical support for all of the dishmachines detailed in this manual. We strongly recommend that you refer to this manual before making a call to our technical support staff. Please have this manual with you when you call so that our staff can refer you, if necessary, to the proper page. Technical support is available from 8:00 a.m. to 5:00 p.m. (EST), Monday through Friday. Technical support is not available on holidays. Contact technical support toll free at 1-888-800-

5672. Please remember that technical support is available for service personnel only.

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Installation & Operation Instructions, HT-1 & HT-2 4 Installation & Operation Instructions, LT-1 & LT-3 5 Installation Instructions & Diagrams, HT-1 & HT-2 7 Installation Instructions & Diagrams, LT-1 & LT-3 8 Chemical Dispensing Equipment, HT-1 & HT-2 9 Chemical Dispensing Equipment, LT-1 & LT-3 10 Cam Timer Operation HT-1 11 Cam Timer Operation HT-2 13 Cam Timer Operation LT-1 15 Cam Timer Operation LT-3 17

III. PARTS

HT-1 Assembly 20 HT-2 Assembly 22 Inner Panel Assembly 24 LT-1 Assembly 25 LT-3 Assembly 27 Peristaltic Pump Assembly 29

IV. ELECTRICAL SCHEMATICS

HT-1 208-240V, 60HZ, 1 PHASE 31 HT-2 115V, 60HZ, 1 PHASE 32 HT-2 208-240V, 60HZ, 1 PHASE 33 LT-1 115V, 60HZ, 1 PHASE 34 LT-3 115V, 60HZ, 1 PHASE 35 LT-3 208-240V, 60HZ, 1 PHASE 36

V. JACKSON MAINTENANCE & REPAIR CENTERS 38

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SECTION 1:

SPECIFICATION INFORMATION

1

DIMENSIONS

SECTION 1: SPECIFICATION INFORMATION

2

SECTION 2:

INSTALLATION/OPERATION

INSTRUCTIONS

3

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

INSTALLATION/OPERATION INSTRUCTIONS HT-1 & HT-2 DISPENSERS

Mount the chemical dispenser unit in a convienent location on the wall.

VERY IMPORTANT: Do not use a domestic type detergent in this machine at any time. This type of detergent may damage and/or obstruct pump operation or cause corrosion in the tank.

HT-1 DISPENSING EQUIPMENT- ELECTRICAL CONNECTION: Power and signal source for the detergent and rinse aid are provided as follows:

1. DETERGENT SIGNAL-White/red wire, signal (line voltage) for detergent dispensing. Connected between the normally closed contact (N.C.) of C6 cam and the Detergent Pump Motor (SM) also connecting to the Detergent Prime Switch (S4). Detergent will be dispensed during the rinse cycle.

2. DISPENSER POWER-White wire (line voltage). Connected between Detergent Primer Switch (S4) and the On/Fill-Off/Drain Switch (S1).

All conduit and wiring for the interconnections is shipped pre-mounted to the HT-1 Chemical Dispensing Equipment. For connections to the dishmachine the wires terminate with butt splice connectors. When installing the chemical dispensing wiring match the correct wire colors then crimp the connectors.

HT-2 DISPENSING EQUIPMENT- ELECTRICAL CONNECTION: Power and signal source for the detergent and rinse aid are provided as follows:

1. DETERGENT SIGNAL-White/red wire, signal (line voltage) for detergent dispensing. Connected between the normally closed contact (N.C.) of C6 cam and the detergent terminal of the Speed Control Circuit Board (SC). Detergent will be dispensed during the rinse cycle.

2. DISPENSER POWER-Red wire, (line voltage) Connected between “L2” and the “C” terminal on the step-down transformer in the HT-2 box.

3. DISPENSER POWER-White wire (line voltage). Connected between “L1” and the appropriate line voltage terminal on the stepdown transformer in the HT-2 box.

4. RINSE AID SIGNAL-Blue wire, (line voltage). Signal for dispensing the rinse aid. Connected between the normally closed contact (N.C.) of the C5 cam and the rinse aid terminal of the Speed Control Circuit Board (SC). Rinse aid will be injected into the final rinse line during the rinse cycle.

All conduit and wiring for the interconnections is shipped pre-mounted to the HT-2 Chemical Dispensing Panel. For connections to the dishmachine the wires terminate with butt splice connectors. When installing the chemical dispensing wiring match the correct wire colors then crimp the connectors.

DETERGENT RECOMMENDATIONS: We suggest that you contact your local detergent specialist for the correct detergent for your area.

LIQUID DETERGENT DISPENSING POINT: Liquid detergent will be dispensed into machine from factory supplied hole at back of the tub above the basket strainer. Remove factory installed plug and install injector fitting for the detergent.

RINSE ADDITIVE INJECTION-FINAL RINSE LINE (HT-2 ONLY): Rinse Aid will be injected into the final rinse line at the rear of the machine. Remove one of the 1/4” plugs from the line and install the rinse aid injector fitting.

TIMER ADJUSTMENT FOR DETERGENT CONCENTRATION: The amount of detergent may need to be increased or decreased depending on water quality and type of detergent. It is factory set to dispense 15 ml of detergent into the wash water during the rinse cycle. Consult your detergent representative for adjustment.

VOLTAGE CHECK: Ensure that the power switch is in the OFF position and apply power to the dishmachine. Check the incoming power at the terminal block and ensure it corresponds to the voltage listed on the data plate of the dishmachine. If not, contact a qualified service agency to examine the problem. Do not run the dishmachine if the voltage is too high or too low. Shut off the service breaker and mark it as being for the dishmachine. Advise all proper personnel of any problems and of the location of the service breaker. Replace the front kick panel and tighten down the screws.

4

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

INSTALLATION / OPERATION INSTRUCTIONS LT-1 & LT-3 DISPENSERS

The dishmachine is a “DUMP AND FILL” type unit that dumps (drains) the wash water after each washing cycle. Water added from the fresh water final rinse is used for the next washing cycle.

Mount the chemical dispenser unit in a convienent location on the wall.

VERY IMPORTANT: Do Not use a domestic type detergent in this machine at any time. This type of detergent may damage and/or obstruct pump operation or cause corrosion in the tank.

LT-1 DISPENSING EQUIPMENT- ELECTRICAL CONNECTION: Power and signal source for the sanitizer are provided as follows:

1. SANITIZER SIGNAL-White/red wire, signal (line voltage) for sanitizer dispensing. Connected between the normally closed contact (N.C.) of C6 cam and the Sanitizer Pump Motor (SM) also connecting to the Sanitizer Prime Switch (S4). Sanitizer will be dispensed during the rinse cycle.

2. DISPENSER POWER-White wire (line voltage). Connected between Sanitizer Primer Switch (S4) and the On/Fill-Off/Drain Switch (S1).

All conduit and wiring for the interconnections is shipped pre-mounted to the LT-1 chemical dispensing equipment. For connections to the dishmachine the wires terminate with butt splice connectors. When installing the chemical dispensing wiring match the correct wire colors then crimp the connectors.

LT-3 DISPENSING EQUIPMENT- ELECTRICAL CONNECTION: Power and signal source for the detergent and rinse aid are provided as follows:

1. SANITIZER SIGNAL-White/red wire, signal (line voltage) for sanitizer dispensing. Connected between the normally closed contact (N.C.) of C6 cam and the Sanitizer Pump Motor (SM) also connecting to the Sanitizer Prime Switch (S4). Sanitizer will be dispensed during the rinse cycle.

2. DISPENSER POWER-White wire (line voltage). Connected between Sanitizer Primer Switch (S4) and the On/Fill-Off/Drain Switch (S1).

3. DETERGENT SIGNAL-White/red wire, signal (line voltage) for detergent dispensing. Connected between the normally closed contact (N.C.) of C7 cam and the Detergent Pump Motor (DM) also connecting to the Detergent Prime Switch (S5). Detergent will be dispensed during the rinse cycle.

4. DISPENSER POWER-White wire (line voltage). Connected between Detergent Primer Switch (S5) and the On/Fill-

Off/Drain Switch (S1).

5. RINSE ADDITIVE SIGNAL-White/red wire, signal (line voltage) for rinse additive dispensing. Connected between the normally closed contact (N.C.) of C8 cam and the Rinse Aid Pump Motor (RM) also connecting to the Rinse Aid Prime Switch (S6). Rinse Aid will be dispensed during the rinse cycle.

6. DISPENSER POWER-White wire (line voltage). Connected between Rinse Aid Primer Switch (S6) and the On/Fill-Off/Drain

Switch (S1).

All conduit and wiring for the interconnections is shipped pre-mounted to the LT-3 chemical dispensing panel. For connections to the dishmachine the wires terminate with butt splice connectors. When installing the chemical dispensing wiring match the correct wire colors then crimp the connectors.

SANITIZER RECOMMENDATIONS: We suggest that you contact your local chemical specialist for the correct sanitizer for your application.

DETERGENT RECOMMENDATIONS AND RINSE ADDITIVES (LT-3 Only): We suggest that you contact your local detergent specialist for the correct detergent and rinse additives for your area.

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SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

INSTALLATION / OPERATION INSTRUCTIONS LT-1 & LT-3 DISPENSERS (CONTINUED)

LIQUID DETERGENT DISPENSING POINT (LT-3 Only): Liquid detergent will be dispensed into machine from factory supplied

hole at back of the tub above the basket strainer. Remove factory installed plug and install injector fitting for the detergent.

TIMER ADJUSTMENT FOR DETERGENT CONCENTRATION (LT-3 Only): The amount of detergent may need to be increased or decreased depending on water quality and type of detergent. It is factory set to dispense 15 ml of detergent into the wash water during the rinse cycle. Consult your detergent representative for adjustment.

RINSE ADDITIVE INJECTION-FINAL RINSE LINE (LT-3 ONLY): Rinse Aid will be injected into the final rinse line at the rear of the machine. Remove one of the 1/4” plugs from the line and install the rinse aid injector fitting.

SANITIZER INJECTION-FINAL RINSE LINE: Sanitizer will be injected into the final rinse line at the rear of the machine. Remove one of the 1/4” plugs from the line and install the sanitizer injector fitting.

TIMER ADJUSTMENT FOR SANITIZER CONCENTRATION: The amount of sanitizer may need to be increased or decreased depending on concentration and type of sanitizer used. The dispenser needs to be able to provide 2.271 ml of a 10% Chlorine sanitizer for every machine cycle.

VOLTAGE CHECK: Ensure that the power switch is in the OFF position and apply power to the dishmachine. Check the incoming power at the terminal block and ensure it corresponds to the voltage listed on the data plate of the dishmachine. If not, contact a qualified service agency to examine the problem. Do not run the dishmachine if the voltage is too high or too low. Shut off the service breaker and mark it as being for the dishmachine. Advise all proper personnel of any problems and of the location of the service breaker. Replace the front kick panel and tighten down the screws.

6

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS & DIAGRAMS for the HT-1 & HT-2

Installation Instructions:

1. Identify the appropriate location for the box.

2. Make sure the electrical supply to the dishmachine has been turned off at the supply circuit breaker.

3. Loosen the two screws in the upper corners of the box and open. (See photo #1)

4. Loosen and remove the four screws to the component mounting plate inside. (Removing the ground screw will give additional slack.) (See photo #2)

5. Hold the box up to the wall and mark four mounting holes. (See photo #3)

6. Install appropriate wall anchors for the type of wall.

7. Mount the box to the wall.

8. Replace the component mounting plate. Reinstall the ground screw.

9. Close the box and retighten screws.

10. Run flexible conduit to rear of dishmachine and attach with fitting provided.

11. Remove the front kick panel from the dishmachine by loosening the screws under the front two corners and lifting upward and out.

12. Locate the wire bundle above the thermostat. (See photo #4) There will be four wires (white, red, blue and white with a red stripe) all with red crimp-type butt splices.

13. Run the five wires from the conduit to the front of the unit and match up color to color with the wire bundle. Cut wires from the conduit to proper length, if needed.

14. Crimp all wires to matching color on dishmachine. Attach green and yellow wire to grounding lug. Use wire ties to route wires out of the way of moving parts.

15. Reinstall the kick panel on the dishmachine.

16. Locate and remove the white bulkhead plug on the rear of the dishmachine.

17. Install the bulkhead fitting from the kit (bulkhead with a hole through the center) in its place. (See photo #5) Install one of the compression elbows into the bulkhead fitting. Route the red chemical tube into the compression elbow and hand tighten only.

18. Locate the rinse injector on the rear of the dishmachine. Remove one of the square headed plugs. Wrap the compression elbow threads with plumber’s teflon tape and install the elbow into the hole.

19. Insert a short piece of clear tubing from the kit into the other compression elbow. Route the white tubing from the dispenser to the compression elbow. Insert white tube through clear tube in compression elbow and hand tighten only. (See photo #6)

20. Power up the unit and run a cycle and check for leaks.

21. Put the unit back in place.

22. Place the gray stiffeners in the appropriate chemicals. (red for detergent, and white for rinse aid)

23. Prime each pump until chemical is seen flowing through tube going into the unit.

24. Installation is complete.

Photo #1

Photo #2

Photo #4

Photo #3

Photo #5

Photo #6

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SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS & DIAGRAMS for the LT-1 & LT-3

1. Identify the appropriate location for the box.

2. Make sure the electrical supply to the dishmachine has been turned off at the supply circuit breaker.

3. Loosen the two screws in the upper corners of the box and open. (See diagram #1)

4. Hold the box up to the wall and mark four mounting holes. (See diagram #2)

5. Install appropriate wall anchors for the type of wall.

6. Mount the box to the wall.

7. Close the box and retighten screws.

8. Run flexible conduit to rear of dishmachine and attach with fitting provided.

9. Remove the front kick panel from the dishmachine by loosening the screws under the front two corners and lifting upward and out.

10. Locate the wire bundle above the thermostat. There will be four wires (white, red, blue and white with a red stripe) all with red crimp-type butt splices.

11. Run the five wires from the conduit to the front of the unit and match up color to color with the wire bundle. Cut wires from the conduit to proper length, if needed.

12. Crimp all wires to matching color on dishmachine. Attach green and yellow wire to grounding lug. Use wire ties to route wires out of the way of moving parts.

13. Reinstall the kick panel on the dishmachine.

14. Locate and remove the white bulkhead plug on the rear of the dishmachine.

15. Install the bulkhead fitting from the kit (bulkhead with a hole through the center) in its place. (See diagram #3) Install one of the compression elbows into the bulkhead fitting. Route the red chemical tube into the compression elbow and hand tighten only.

16. Locate the rinse injector on the rear of the dishmachine. Remove one of the square headed plugs. Wrap the compression elbow threads with plumber’s teflon tape and install the elbow into the hole.

17. Insert a short piece of clear tubing from the kit into the other compression elbow. Route the white tubing from the dispenser to the compression elbow. Insert white tube through clear tube in compression elbow and hand tighten only. (See diagram #4)

18. Power up the unit and run a cycle and check for leaks.

19. Put the unit back in place.

20. Place the gray stiffeners in the appropriate chemicals. (red for detergent, and white for sanitizer, and blue for rinse aid)

21. Prime each pump until chemical is seen flowing through tube going into the unit.

22. Installation is complete.

Diagram #1

Diagram #2

Diagram #4Diagram #3

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SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

CHEMICAL DISPENSING EQUIPMENT HT-1 & HT-2

TO PREPARE PUMPS FOR OPERATION

The HT-1 is a chemical dispensing unit supplied with a detergent pump. Locate the open end of the chemical tube with the tube stiffener and place in the appropriate container.

The HT-2 is a chemical dispensing unit supplied with detergent and rinse additive pumps. Locate the open ends of the chemical tubes with the tube stiffeners and place each one in the appropriate container.

A. Red Tubing = Detergent

B. Blue Tubing (HT-2 Only) = Rinse Aid

PRIMING CHEMICAL FEEDER PUMPS

Chemical feeder pumps need priming when the machine is first installed or if for some reason the chemical lines have been removed and air has been allowed to enter.

CAUTION: Water must be in the sump and wash tank prior to the dispensing of the chemical.

1. Verify that the chemical tube stiffener inlet is in the detergent container.

2. Use the toggle switches on the front of the dispenser box to prime each pump. There is one (1) switch mounted above each peristaltic pump. One will prime the detergent pump, and the second will prime the rinse aid pump (HT-2 Only).

3. To prime the pump, hold the switch in the momentary position until chemical can be observed entering the tub.

4. Detergent is dispensed as required during the wash cycle by the cam timer. The amount of detergent may need to be increased or decreased depending on water quality and type of detergent. It is adjusted by changing Cam 6 on the cam timer.

5. Rinse additive is dispensed as required into the final rinse. The amount of rinse aid may need to be adjusted depending on water hardness and results. It can be changed by changing Cam 5 on the cam timer.

WARNING: Some of the chemicals used in dishwashing may cause chemical burns if they come on contact with your skin. Wear appropriate protective gear when handling these chemicals. If you do come in contact with these chemicals flush the area with fresh water.

9

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

CHEMICAL DISPENSING EQUIPMENT LT-1 & LT-3

TO PREPARE PUMPS FOR OPERATION

The LT-1 is a chemical dispensing unit supplied with a sanitizer chemical pump. Locate the open end of the chemical tube with the tube stiffener and place in the appropriate container.

The LT-3 is a chemical dispensing unit supplied with detergent, rinse additive, and sanitizer chemical pumps. Locate the open ends of the chemical tubes with the tube stiffeners and place each one in the appropriate container.

A. Red Tubing = Detergent

B. Blue Tubing (LT-3 Only) = Rinse Aid

C. White Tubing (LT-3 Only) = Sanitizer

PRIMING CHEMICAL FEEDER PUMPS

Chemical feeder pumps need priming when the machine is first installed or if for some reason the chemical lines have been removed and air has been allowed to enter.

CAUTION: Water must be in the sump and wash tank prior to the dispensing of the chemical.

1. Verify that the proper chemical tube stiffener inlet is in the proper container.

2. Use the toggle switches on the front of the dispenser box to prime each pump. There is one (1) switch mounted above each peristaltic pump. One will prime the detergent pump, and the second will prime either the rinse aid pump.

3. To prime the pumps, hold the switch in the momentary position until chemical can be observed entering the tub.

4. Sanitizer, either chlorine or iodine, is dispensed into the final rinse. The amount of sanitizer may need to be adjusted depending on the concentration and type of sanitizer used. It is adjusted by changing Cam 6 on the cam timer.

5. Detergent is dispensed as required during the wash cycle by the cam timer. The amount of detergent may need to be increased or decreased depending on water quality and type of detergent. It is adjusted by changing Cam 7 on the cam timer.

6. Rinse additive is dispensed as required into the final rinse. The amount of rinse aid may need to be adjusted depending on water hardness and results. It can be changed by changing Cam 8 on the cam timer.

WARNING: Some of the chemicals used in dishwashing may cause chemical burns if they come on contact with your skin. Wear appropriate protective gear when handling these chemicals. If you do come in contact with these chemicals flush the area with fresh water.

10

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

CAM TIMER OPERATION FOR HT-1

The cam timer is a 2 minute 6 cam timer with an OFF-DRAIN function.

The following is a description of set points for each cam and function for each switch.

CAM 1: Cam 1 is a cut cam with a single notch and serves as the Cycle/Reset.

FUNCTION: When the machine is in the operation mode the notch is the home position. The machine will set idle until the door is opened, then cam 1 moves to the start position and holds until the door is closed. The closing of the door will start the next cycle. The cam will rotate a complete cycle and back to the home position and hold.

CAM 2: Cam 2 is a cut cam and provides the off/drain function.

FUNCTION: The function of the off/drain cam is controlled by the power switch. When the power switch is in the ON position the off/drain function is disabled. To use the off/drain, start a cycle and place the power switch in the OFF position. The machine will run a wash cycle, drain and stop. The machine will hold this state of operation until the power switch is turned on, when turned on the machine will fill, run a rinse cycle and stop at the home position.

The off/drain cam works off the normally open contacts of cam 2. This requires the switch to be held closed by the cam. The off/drain cam switch will pick up just after the cycle cam switch and drop back down just after the wash cycle cam switch.

CAM 3: Cam 3 is a cut cam and controls the wash and rinse cycles.

FUNCTION: The wash and rinse cam works off the normally open contacts of cam 3. This requires the switch to be held closed by the cam. The wash/rinse cam switch will pick up just after the cycle cam switch and drop back down just before the off/drain cycle cam switch. Wash pump will run approximately 58 seconds. The machine will drain and fill. The rinse cycle will start after the fill, approximately at the 82 second mark and will last 35 seconds. The machine will then return to the home position.

NOTE: The last 3 cams are adjustable. The following instructions will require that the timer position have the cams to the front and the motor to the left.

CAM 4: Cam 4 is an adjustable cam and controls the drain valve.

FUNCTION: The drain valve cam works off the normally closed contacts of cam 4. This requires the switch to be held open by the cam and allowed to drop into the notch to operate the drain valve. The pumped drain and fill cams require adjustment due to varying water pressure. The drain must be adjusted to remove whatever water the fill brings into the machine.

SETTINGS: The right side of cam 4 must be set to pick up the switch arm just before the wash cycle cam switch drops. If the drain valve does not close first the water in the drain hose will back up into the pump housing and wash tank.

Any adjustment made to the drain should be made with the left side of cam 4. The adjustment must be moved back into the wash time until all water is drained from the wash tank.

CAM 5: Cam 5 is an adjustable cam and controls the fill valve.

FUNCTION: The fill valve cam works off the normally closed contacts of cam 5. This requires the switch to be held open by the cam and allowed to drop into the notch to operate the fill valve. The pumped drain and fill cams require adjustment due to varying water pressure. Cam 5 must be adjusted to fill the wash tank to the proper operating water level. (Remember, the drain cycle must remove what the fill cycle brings in.)

SETTINGS: The left side of cam 5 must be set to drop in just past the stop point of the off/drain cam. There must be a dwell between the off/drain and the fill, so that the fill will not run while the machine is in the off state.

Any adjustment made to the fill should be made with the right side of cam 5. Proper water level will be achieved when the water touches the bottom of the strainer pan.

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SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

CAM TIMER OPERATION FOR HT-1 (CONTINUED)

CAM 6: Cam 6 is an adjustable cam and controls the detergent pump.

FUNCTION: The detergent pump cam works off the normally closed contacts of cam 6. This requires the switch to be held open by the cam and allowed to drop into the notch to operate the pump.

SETTINGS: The left side of cam 6 must be set to drop in just past the starting point of the wash cam. The adjustment for detergent volume must be made with the right side of the cam.

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SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

CAM TIMER OPERATION FOR HT-2