1. Introduction
This manual provides essential information for the safe and efficient operation, installation, maintenance, and troubleshooting of your Manitowoc SM-50A Undercounter Ice Machine. Please read this manual thoroughly before operating the unit and retain it for future reference. This appliance is designed for commercial use to produce octagonal cube ice.
Figure 1.1: Front view of the Manitowoc SM-50A Undercounter Ice Machine.
2. Safety Information
Always adhere to the following safety guidelines to prevent injury or damage to the unit:
- Electrical Safety: Ensure the unit is connected to a properly grounded electrical outlet. Do not use extension cords. Disconnect power before any service or maintenance.
- Water Supply: Connect the unit to a potable water supply with appropriate pressure. Install a water filter as recommended.
- Ventilation: Maintain adequate airflow around the unit. Do not block air vents.
- Installation: Installation should be performed by qualified personnel in accordance with all local codes and regulations.
- Moving the Unit: Use caution when moving the unit due to its weight (approximately 157 lbs).
- Cleaning: Use only recommended cleaning agents and follow cleaning procedures carefully.
3. Product Overview
3.1 Key Features
- Produces 53 lbs. of gourmet octagonal cube ice per 24 hours.
- Built-in storage bin with a 25 lb. capacity.
- Integrated water filtration system for improved ice quality.
- Includes a drain pump, essential for most installations.
- Gourmet Top-Hat ice cubes, measuring 1-3/8" x 1-3/8".
3.2 Components
The Manitowoc SM-50A features an accessible interior for ice retrieval and maintenance.
Figure 3.1: Interior view of the ice machine with the door open, revealing the ice bin and scoop.
Figure 3.2: Detail of the unique octagonal gourmet ice cube produced by the unit.
4. Setup and Installation
Proper installation is crucial for the performance and longevity of your ice machine. It is strongly recommended that installation be performed by a qualified professional.
4.1 Location Requirements
- Install in a well-ventilated area with ambient temperatures between 50°F (10°C) and 90°F (32°C).
- Ensure sufficient clearance around the unit for proper airflow, especially at the front air intake and exhaust.
- The unit is designed for undercounter installation. Ensure the space meets the product dimensions.
Figure 4.1: Example of the ice machine installed under a counter in a commercial setting.
Figure 4.2: Example of the ice machine integrated into a home bar or kitchen island.
4.2 Water and Drain Connections
- Connect to a cold, potable water supply with a shut-off valve.
- The integrated water filtration system requires proper connection and initial flushing.
- The included drain pump is necessary for installations where gravity drainage is not possible. Ensure the pump is correctly installed and connected to a suitable drain.
Figure 4.3: Lower front panel, indicating the location for drain pump access and air intake.
4.3 Electrical Connection
The unit operates on 115 Volts. Ensure the electrical supply meets the specifications and is properly grounded.
5. Operating Instructions
The control panel allows for simple operation of the ice machine.
Figure 5.1: Close-up of the control panel, featuring Power and Delay Start options.
5.1 Starting the Unit
- Ensure all installation steps are complete and the unit is connected to power and water.
- Press the POWER button on the control panel to initiate the automatic ice making cycle. The unit will begin producing ice.
5.2 Delay Start Function
The DELAY START function allows you to postpone ice production for a set period.
- Press the DELAY START button to cycle through delay options (e.g., 2, 4, or 6 hours).
- The unit will automatically begin ice production after the selected delay period.
5.3 Ice Storage
The built-in bin stores up to 25 lbs. of ice. Use the provided scoop for hygienic ice retrieval. Do not store other items in the ice bin as this can contaminate the ice or damage the unit.
6. Maintenance and Cleaning
Regular maintenance ensures optimal performance and extends the lifespan of your ice machine.
6.1 Daily Cleaning
- Clean the exterior surfaces with a mild soap and water solution.
- Wipe down the interior of the ice bin and the ice scoop.
6.2 Monthly Cleaning (or as needed)
- Water Filter Replacement: The built-in water filtration system requires periodic cartridge replacement. Refer to the filter manufacturer's instructions for replacement frequency.
- Condenser Cleaning: Clean the condenser fins to ensure efficient cooling. Disconnect power before cleaning. Use a brush or vacuum cleaner to remove dust and debris.
- Ice Making System Cleaning: Follow the manufacturer's recommended procedure for descaling and sanitizing the ice-making components. This typically involves using a specialized ice machine cleaner.
7. Troubleshooting
Before contacting service, review the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No ice production | No power, water supply off, clogged water filter, unit in delay mode, defective pump. | Check power connection, ensure water supply is on, replace water filter, check delay settings, contact service for pump issues. |
| Unit is excessively loud | Normal operational noise, loose components, fan obstruction, pump issue. | Some operational noise is normal. Check for obstructions around the fan. If noise is unusual or excessive, contact service. |
| Water leaking | Loose connections, clogged drain, drain pump malfunction. | Inspect all water and drain connections for tightness. Clear any drain obstructions. If leaking persists, contact service. |
| Ice quality is poor | Dirty water filter, mineral buildup, improper water supply. | Replace water filter. Perform a thorough cleaning and descaling of the ice machine. Ensure proper water supply. |
If troubleshooting steps do not resolve the issue, contact a qualified service technician.
8. Specifications
- Model: SM-50A
- Item Model Number: UCP0050A-161 | K00376
- Brand: Manitowoc
- Product Dimensions: 3"D x 1"W x 8"H (Note: The product dimensions listed as 3 x 1 x 8 inches; 157 Pounds and 3"D x 1"W x 8"H appear to be placeholder or incorrect. Please refer to official product documentation for accurate dimensions. The weight is 157 Pounds.)
- Ice Production Capacity: 53 lbs. per 24 hours
- Storage Bin Capacity: 25 lbs.
- Ice Type: Octagonal Cube (Gourmet Top-Hat, 1-3/8" x 1-3/8")
- Cooling Type: Air Cooled
- Voltage: 115 Volts
- Manufacturer: Manitowoc Ice
- ASIN: B07MXJVBSR
9. Warranty and Support
For warranty information, please refer to the documentation provided with your purchase or contact Manitowoc Ice directly. For technical support or service inquiries, please reach out to an authorized Manitowoc service provider. It is recommended to have your model number (SM-50A) and serial number available when contacting support.
Manufacturer: Manitowoc Ice