Manitowoc S Model Dispensers

Section 1: General Information

Read This Manual
These instructions are provided to assist the qualified installer. Check your local Yellow Pages for the name of the nearest Manitowoc distributor, or call Manitowoc Foodservice for information regarding start-up services.

Model Numbers
This manual covers the following models:

These dispensers are designed to dispense both dice and half dice ice. They are used in conjunction with a Manitowoc ice machine for automatic fill of the dispenser.

• S160/S190 Series Dispensers can store 120 lbs. of ice and accept a single 22" Dice or Half Dice size ice machine.
• S290/S300 Series Dispensers can store 180 lbs. of ice and accept a single 22" or 30" Dice or Half Dice size ice machine, except for Series S1000 and S1200.

NOTE: Dispense Opening: Height 11" (28 cm), Width 14" (36 cm)

Accessories

ADAPTER KITS
22" ice machines mounted on a 30" dispenser require two adapter kits (not included):

• K00365 adapter allows a 22" ice machine to be mounted on a 30" bin.
• K00348 baffle prevents ice from contacting the ice machine front panel.

INCLUDED BAFFLE KIT
S Model 22" & 30" Ice Machines require installation of the included baffle 5029517 (22") or K00346 (30"). This baffle prevents ice from contacting the ice machine front panel.

EARTHQUAKE KITS
Earthquake kits are available to secure the ice machine to the dispenser and the dispenser to the floor.

Serial Plate Location
The label with the Model Number and Serial Number is located behind the front panel, to the right of the rocking chute (Front of Dispenser). A second location is on the back of the dispenser, in the upper right corner (Back of Dispenser).

Image Description: A stainless steel Manitowoc S Model ice dispenser is shown.

Section 2: Installation Instructions

Pre-Installation Checklist

• Location: Floor drain available – A floor drain for the dispenser must be available. Venting the drain at the back of the dispenser is recommended to reduce algae buildup and improve drainage. Drain tubing should be 1/2" I.D. minimum.
• Location: Avoid heat sources – Avoid placing the ice machine near heat sources like radiators, heating vents, and direct sunlight. Do not place air-cooled ice machines in kitchens due to grease, flour, or other particles that can clog the condenser and fan blade, increasing maintenance and reducing efficiency.
• Location: On a solid floor – The dispenser and ice maker must sit on a good, solid, level floor or surface.
• Location: Do not obstruct traffic – The dispenser should not extend from the wall in a way that obstructs traffic.
• Electrical – Ensure proper electrical voltage is available. A receptacle must be available within six feet.

Warning
Never use an extension cord. If an electrical outlet is not within six feet, install a proper amperage outlet. The dispenser must be grounded according to all local and national electrical codes.

• Clearances for top and both sides of ice machine – Refer to the ice machine's Installation, Use and Care Manual for specified clearances.
• Clearance behind ice machine for dispenser and drains – Ensure sufficient clearance for water and drain connections at the rear of the dispenser.
• Back of ice machine to be flush with back of dispenser – This allows installation of the supplied mounting clip (metal plate) to secure the ice machine to the dispenser.
• Separate drains – A separate drain line is required for the ice machine, in addition to the dispenser's drain line. Vent all drain lines.
• Water filtration – Water filtration is strongly recommended to improve ice machine performance and reduce maintenance costs.

For detailed information on ice machine installation, including plumbing, connections, and electrical requirements, consult the ice machine installation manual.

Caution
Protect the dispenser from temperatures below 32°F (0°C). Freezing damage is not covered by warranty.

Electrical

Warning
All wiring must conform to local, state, and national codes.

*120 Volts – 60 Hz. – 1.8 amp (U.S. Standard) includes an eight-foot cord with plug.

Grounding Instructions

Warning
The dispenser must be grounded in accordance with national and local electrical codes.

This appliance must be grounded. Grounding provides a path of least resistance for electric current in case of malfunction or breakdown, reducing the risk of electric shock. The appliance is equipped with a cord having an equipment-grounding conductor and a grounding plug. Plug into an appropriately installed and grounded outlet per local codes and ordinances.

Warning
Improper connection of the equipment-grounding conductor can result in electric shock. The equipment grounding conductor is identified by insulation that is green with or without yellow stripes. If repair or replacement of the cord or plug is necessary, do not connect the equipment-grounding conductor to a live terminal. Consult a qualified electrician or serviceman if grounding instructions are unclear. Do not modify the provided plug; if it does not fit the outlet, have a proper outlet installed by a qualified electrician.

Water Supply and Drains

POTABLE WATER
Water temperature must be between 40°F (4.4°C) and 90°F (32°C).
Water pressure must be between 20 psi (140 kPa) and 80 psi (550 kPa).
Minimum internal diameter of tubing: 3/8" (10 mm).

DRAIN CONNECTIONS
Drain lines must have a 1.5 inch drop per 5 feet of run (2.5 cm per meter) and must not create traps.
The floor drain must be large enough for all drains.
Run separate bin and ice machine drain lines.
Insulate drain lines to prevent condensation.
Vent the ice machine drain to the atmosphere.
Drain termination must have an air gap meeting local code.

Installation Procedures

Warning
Do not attempt to move a dispenser without first moving the ice machine. The combination can be unstable and may tip, causing serious injury.

1. Review the Pre-Installation Checklist and ensure all utility and space requirements are met at the installation site.
2. Remove the carton top from the dispenser.
3. Remove legs and other accessories from inside the dispenser bin.
4. Remove the carton from the sides of the dispenser.
5. Remove the dispenser from the shipping pallet.
6. Flatten the shipping carton.
7. Lay the dispenser on its back on the carton.
8. Thread the legs into the bottom of the dispenser.
9. Set the dispenser upright.
10. Place the dispenser in the desired location.
11. Ensure the dispenser bin top is level, which is important for proper ice machine operation.
12. Place the ice machine on top of the dispenser.
13. Connect the dispenser drain to the floor drain.
14. Follow local plumbing codes for drain installation.
15. If the dispenser has a water valve, connect the water line to the dispenser's water connection at the back.
16. Test all drain and water lines for leaks.
17. Plug the dispenser into the proper electrical outlet.
18. Clean and sanitize all equipment following the instructions in this manual.
19. Adjust the ice machine per its provided instructions.
20. Install the ice baffle inside the ice maker compartment, following the baffle's installation instructions.
21. Install the foam gasket on the bottom of the front panel.
22. Fill the dispenser bin one-quarter full of ice or start the ice machine, allowing it to drop at least three complete batches of ice.
23. Test the ice dispensing action.

Installation Checklist

• Dispenser and ice machine are level?
• Drains are vented?
• Dispenser is not in direct sunlight?
• Dispenser is not in direct airflow from a heating duct?
• Bin and ice machine drains are separate?
• Ice dispensed properly?
• Dispenser is accessible for servicing?
• Warranty card was returned?
• Ice Machine ice thickness control is properly set?
• Owner was instructed on dispenser operation?
• Owner knows how to clean and sanitize the dispenser?
• Owner knows the frequency for cleaning and sanitizing?
• Owner has the service contact number?
• Service sticker placed on dispenser?

Section 3: Operation

Sequence of Operation
The S Series ice dispenser operates in three main phases: Dispenser Activation, Ice Pick-Up, and Ice Delivery.

DISPENSER ACTIVATION
Dispenser activation can occur through several mechanisms:

• Rocking Chute (Push for Ice) Activation: User pushes the Rocking Chute, activating a microswitch that engages the gearmotor.
• Room Key Card Activation: User inserts a hotel room key card into the dispenser slot. The key card activates a microswitch. The user then presses the Rocking Chute for ice dispense, activating the gearmotor. The key card must remain in the slot for the microswitch to stay active.
• Coin Operated Activation: User inserts a quarter into the dispenser. The quarter activates the coin mechanism. The user then presses the Rocking Chute for ice dispense, activating the gearmotor. Ice dispenses for up to one minute per 25-cent activation (factory setting).

Danger
Do not operate equipment that has been misused, abused, neglected, damaged, or modified from original specifications. This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless supervised by a responsible person. Do not allow children to play with, clean, or maintain this appliance without supervision.

ICE PICK-UP
When activated, the dispenser's gearmotor turns the paddle wheel inside the bin. The paddle wheel picks up ice and brings it to the top of the travel area.

ICE DELIVERY
At the top of its travel, ice falls from the paddle wheel into the ice chute, which directs it to the door assembly, dispensing 2-3 oz. of ice per second. If the door closes before dispensing is complete, some ice may be held back. If the door is open, ice falls through the door and chute into the customer's container.

NOTE: Dispense Opening: Height 11" (28 cm), Width 14" (36 cm)

Model SFA-191/291 may have an optional water valve. Pressing the water valve lever directs water to the water valve nozzle.

Adjustments

ADJUSTING THE COIN MECHANISM TIMER

1. Remove the control box cover. An instruction label inside shows how to set dispense time intervals.
2. The coin mechanism timer is on the left inside the control box; the agitation timer is on the right.
3. Use a small Phillips head screwdriver to adjust the coin mechanism timer. Refer to the instruction label or the information below for timer adjustment.
4. The timer is factory set for 60 seconds of dispense time. The adjustment pot can be set counterclockwise for a minimum of 12 seconds or clockwise for a maximum of 120 seconds.

ADJUSTING THE COIN MECHANISM FOR CANADIAN COINS

Important
Canadian quarters are magnetic. Remove the magnet inside the coin mechanism so Canadian quarters will pass through.

1. Remove the dispenser's front panel. The coin mechanism can be serviced while in place in the door.
2. Pivot the coin magnet housing section away from the rest of the coin mechanism.
3. Using a small screwdriver, loosen the set screw holding an aluminum plate in the coin magnet housing.
4. Remove the aluminum plate.
5. Using a metal screwdriver tip, pull the magnet from its housing (the back side has stronger attraction).
6. The aluminum plate and magnet are now removed. Pivot the empty coin magnet housing section back into place.
7. Reinstall the front door.

Agitation Timers
The agitation timer is standard for floor dispensers and periodically agitates ice to prevent congealing.

TIMER WITH BLINKING LED
The LED indicates the timer's operating mode. Instead of a jumper pin, it uses a female spade connector to terminal 6.

• With the jumper in place, the LED blinks at one-second intervals (Run Mode).
• With the jumper open, the LED flashes every 4/10ths second (Test Mode). The timer cycles every 55 seconds in test mode. Replace the jumper after testing. If left in test mode, it will reset to run mode.

When installing this timer, verify correct wiring. Older equipment may need wiring changes. Check the yellow wire from the ice dispense switch (rocking chute) to terminal two of the timer. With this timer, the yellow wire leaves the switch from the NC terminal.

Diagram Description: A wiring diagram shows terminals 1, 5 (COM, NC), 3, 4, 12, and 6 (NO, RED).

TIMER WITH TEST PINS
The timer has test pins. Test the timer by removing the jumper between the two pins.

Diagram Description: A diagram shows test pins labeled 1, 2, 3, 4, 5.

The timer is non-adjustable and set to agitate ice for three seconds every 3.5 hours. Activating the dispenser resets the timer. After 3.5 hours of non-use, the timer energizes the dispenser motor.

To verify agitation timer function:

1. Remove the jumper between the two pins.
2. The timer will cycle every 55 seconds.
3. If it does not cycle every 55 seconds, replace the timer.
4. Replace the jumper after testing.

Caution
Never operate without the jumper; damage will occur.

Section 4: Maintenance

Warning
Dispenser is not suitable for installation where a water jet could be used and must not be cleaned by a water jet.

Disassembly

REMOVING THE FRONT PANEL

Warning
Electric Shock Hazard
Unplug unit before servicing or cleaning. The agitator is timer-operated and can agitate at any time.

1. Shut off water to the ice machine.
2. Loosen the 2 screws (retained by o-rings) with a Phillips screwdriver.
3. Hold the front panel on both sides, pull the top forward to release the top catch, and tilt the panel forward. It will rest on bottom catch hooks.
4. SFA-191/291 ONLY – A water line is attached to the front panel. For complete removal, disconnect the main water supply, relieve water pressure, and remove the water line from the water valve.
5. Lift the front panel off the catch hooks and set it aside.

Image Description: A hand is shown removing screws to disengage the door panel. The word "WATER" is visible.

REMOVING THE DRAIN PAN

1. The drain pan is visible after the front panel is removed.
2. Loosen the clamp and remove the drain hose from the drain pan.
3. Slide the drain pan forward and pull it out.
4. Remove any accumulated scrap ice.
5. After cleaning, slide the drain pan back into place.

Image Description: A hand is shown sliding the drain pan forward.

DISASSEMBLING THE ROCKING CHUTE/DOOR & PADDLE WHEEL GUARD

Warning
Electric Shock Hazard
Unplug unit before servicing or cleaning.

1. Remove the front panel (See "Removing the Front Panel").
2. Remove the outer bracket.
3. Remove the door lock.
4. Lift the left end of the door rod and pull the rod out from the right side of the door.
5. Remove the door.
6. Remove the ice chute.
7. Pull the paddle wheel guard from the holes inside the ice dispense snout.

Image Description: Steps show removing the outer bracket, door lock, lifting the door rod, removing the door, removing the ice chute, and pulling the paddle wheel guard.

DISASSEMBLING THE DISPENSER PARTS FOR BIN CLEANING

Warning
Unplug unit before servicing or cleaning. The ice dispenser bin contains moving parts that can move at any time and cause injury if hands are in the way.

1. Parts to be removed: agitator pin, agitator, and paddle wheel.
2. Push the removable agitator pin until it clears the agitator bushing.
3. Push the agitator toward the back of the bin until it is free of the paddle wheel hub. Slide the agitator to one side while pulling forward until the agitator shaft clears the bushing.
4. Slide the paddle wheel off the motor shaft and remove it.

Image Description: Steps show removing the paddle wheel guard, pulling the agitator pin, pushing the agitator, and sliding the paddle wheel off the motor shaft.

Cleaning and Sanitizing

MONTHLY SANITIZING PROCEDURE

Warning
Electric Shock Hazard
Unplug unit before servicing or cleaning.

1. Remove the front panel, paddle wheel, ice chute, and door assembly.
2. Mix a solution of 3 ounces (100 ml) Manitowoc cleaner per 1 gallon (4 liters) of tap water.
3. Thoroughly clean all removed parts and the dispenser bin, door assembly, and ice chute with this cleaner.
4. Rinse all cleaned parts with fresh, running tap water.
5. Mix a solution of 3 ounces (90 ml) Manitowoc sanitizer with 4 gallons (15 liters) of tap water.
6. Sanitize each part washed in the previous step with this sanitizer solution. Sanitize and re-assemble in this order: Paddle wheel, Agitator, Paddle wheel pin, Ice chute assembly, Scrap ice tray, Front panel.
7. Do not rinse dispenser parts after sanitizing. Allow parts to air dry.
8. After all dispenser parts are replaced, restore power to the dispenser.
9. Turn the ice machine on.
10. Allow the ice machine to begin filling the dispenser.
11. After three batches are in the dispenser, test dispenser operation.

Assembly

RE-INSTALLING THE PADDLE WHEEL GUARD

When re-assembling the rocking chute/door, mount the paddle wheel guard inside the ice dispense snout. Snap its top hinge into the mounting holes on both sides of the snout. When correctly installed, the guard swings outward, allowing ice to flow. If installed incorrectly, ice delivery will be blocked.

Image Description: A hand is shown pressing the paddle wheel guard. Text indicates that if pressed, the guard does not swing open, indicating incorrect installation.

Removal of the Gearmotor

NOTE: The gearmotor does not need to be removed for cleaning/sanitizing.

Warning
Electric Shock Hazard
Unplug unit before servicing or cleaning.

1. Remove the front panel (See "Removing the Front Panel").
2. Unplug the gearmotor wire.
3. Turn the two removal pins toward you.
4. Pull the removal pins out to the right.
5. Grasp the gearmotor as the second pin is removed. Pivot the gearmotor out of place.

Image Description: Steps show unplugging the gearmotor wire, turning removal pins, pulling pins, and grasping the gearmotor to pivot it out.

Section 5: Customer Support

Checklist
If a problem occurs during dispenser operation, follow these checklists before contacting technical service. Routine adjustments and maintenance are not covered by warranty.

Warning
Unplug unit before servicing or cleaning. The dispenser bin contains moving parts that can move at any time and cause injury if hands are in the way.

PROBLEM: ICE DOES NOT DISPENSE WHEN ROCKING CHUTE IS DEPRESSED

PROBLEM: DISPENSER CRUSHES ICE AS IT DISPENSES

PROBLEM: ICE CONTINUES TO DISPENSE OR DISPENSES BY ITSELF

Ice Machine Warranty

For warranty information, visit: www.manitowocice.com/Service/Warranty

• Warranty Coverage Information
• Warranty Registration
• Warranty Verification

Warranty coverage begins the day the ice machine is installed.

WARRANTY REGISTRATION
Completing warranty registration is a quick and easy way to protect your investment. Scan the QR code or enter the link in a web browser to complete registration.

www.manitowocice.com/Service/Warranty#WARRANTY-REGISTRATION
Registering your product ensures warranty coverage and streamlines any warranty work.