1. Important Safety Information
Read all instructions before using this appliance to reduce the risk of fire, electric shock, or injury. Keep this manual for future reference.
1.1 General Safety Precautions
- This appliance is intended for commercial use only.
- Ensure the refrigerator is placed on a level, stable surface capable of supporting its weight when fully loaded.
- Maintain adequate ventilation around the unit. Do not block air vents.
- Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.
- Keep all packaging materials away from children.
1.2 Electrical Safety
- Connect to a properly grounded 115V/60Hz electrical outlet.
- Do not use extension cords or ungrounded adapters.
- Before cleaning or maintenance, always unplug the appliance.
- Do not operate the appliance with a damaged power cord or plug.
1.3 Refrigerant Information
This appliance uses R290 refrigerant. Servicing should only be performed by authorized personnel.
2. Unpacking and Installation
2.1 Unpacking
- Carefully remove all packaging materials, including tape and protective film.
- Inspect the refrigerator for any shipping damage. Report any damage immediately to the carrier and supplier.
- Retain packaging materials for potential future transport or service.
2.2 Placement
- Place the refrigerator on a strong, level floor. The unit weighs approximately 519 pounds (empty).
- Allow at least 6 inches (15 cm) of space behind and on the sides of the unit for proper air circulation.
- Avoid direct sunlight or proximity to heat sources (e.g., ovens, stoves).

Image: Exterior view of the Coolski MR-83 commercial refrigerator in a kitchen setting, showcasing its three stainless steel doors and bottom-mounted casters.
2.3 Caster Installation
The refrigerator comes with 5 casters for mobility. Ensure they are securely attached. Two of the casters are typically lockable to prevent unwanted movement.
2.4 Initial Cleaning
Before first use, clean the interior and exterior surfaces with a mild detergent and warm water. Rinse thoroughly and dry completely.
2.5 Power Connection
After placement and cleaning, plug the refrigerator into a dedicated 115V/60Hz grounded outlet. Allow the unit to sit for at least 2 hours before turning it on to allow refrigerants to settle.
3. Operating Instructions
3.1 Powering On and Temperature Control
Locate the power switch, typically on the front panel. Turn the unit ON. The digital display will show the current internal temperature.

Image: Close-up of the digital control panel, showing the temperature display, ON/OFF switch, and buttons for defrost mode and settings.
- Temperature Range: The refrigerator maintains temperatures between 33°F and 41°F (0.5°C to 5°C).
- Adjusting Temperature: Use the 'Set' button and arrow keys on the digital control panel to adjust the desired temperature. Refer to the detailed controller manual for specific programming instructions.
3.2 Door Features
- Self-Closing Doors: The doors are designed to self-close when opened less than 90 degrees.
- Stay-Open Feature: Doors will remain open at 202 degrees for convenient loading and unloading.
- Door Lock: Each door is equipped with a safety lock for securing contents after hours.
- Door Alarm: An alarm system is integrated to alert users if a door is left open, helping to maintain internal temperature and energy efficiency.

Image: Composite image illustrating key features including white LED interior lighting, lockable casters for mobility, a safety lock mechanism on the door, and a door alarm sensor.
3.3 Adjustable Shelves
The refrigerator includes 12 adjustable wire shelves. These shelves can be repositioned to accommodate various item sizes. Each shelf has a horizontal load-bearing capacity of up to 210 lbs.
4. Maintenance and Cleaning
4.1 Regular Cleaning
- Interior: Clean the interior regularly with a mild, non-abrasive cleaner and warm water. Rinse and dry thoroughly to prevent odors and maintain hygiene.
- Exterior: Wipe down the stainless steel exterior with a soft cloth and a stainless steel cleaner. Avoid abrasive pads or cleaners that can scratch the surface.
- Door Gaskets: Inspect and clean door gaskets regularly to ensure a tight seal. A damaged or dirty gasket can lead to temperature fluctuations and increased energy consumption.
4.2 Automatic Defrost System
This unit features an automatic defrost system. Frost buildup on the evaporator coils is automatically melted at regular intervals. Ensure the drain pan is clear to allow water to evaporate.
4.3 Condenser Coil Cleaning
The condenser coils should be cleaned every 30-90 days, depending on the operating environment. Dirty coils reduce cooling efficiency and increase energy consumption. Use a stiff brush or vacuum cleaner to remove dust and debris from the coils. Always unplug the unit before cleaning the condenser coils.
5. Troubleshooting
Before contacting service, review the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Refrigerator not cooling | Power supply issue, thermostat setting, dirty condenser coils, door left open | Check power plug and circuit breaker. Adjust thermostat. Clean condenser coils. Ensure doors are closed properly. |
| Excessive noise | Unit not level, fan obstruction, loose components | Level the unit. Check for obstructions around fan blades. Tighten any loose parts. |
| Water on floor | Clogged drain line, drain pan overflow | Clear the drain line. Ensure the drain pan is correctly positioned and not overflowing. |
| Door not closing properly | Obstructed door, damaged gasket, unit not level | Remove any obstructions. Inspect and replace damaged gaskets. Level the unit. |
If the problem persists after attempting these solutions, contact customer support.
6. Product Specifications

Image: Diagram showing the product dimensions (Length: 81.9 inches, Width: 31.5 inches, Height: 82.6 inches) along with ETL and DOE certifications.
| Feature | Specification |
|---|---|
| Model Number | MR-83 |
| Dimensions (D x W x H) | 31.5" x 81.9" x 82.68" |
| Item Weight | 519 Pounds |
| Capacity | 72 Cubic Feet (Fresh Food) / 49 Cubic Feet (Total) |
| Voltage | 115 Volts |
| Wattage | 368 watts |
| Refrigerant | R290 |
| Temperature Range | 33°F to 41°F (0.5°C to 5°C) |
| Number of Doors | 3 |
| Shelves | 12 Adjustable Wire Shelves |
| Defrost System | Automatic |
| Installation Type | Freestanding |
| Certifications | DOE, ETL |
| Included Components | 12 Adjustable Shelves, 5 Casters |
7. Warranty and Customer Support
7.1 Warranty Information
- Compressor: 6 Years Warranty
- Parts & Labor: 2 Years Warranty
Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use and service.
7.2 Customer Support
For technical assistance, warranty claims, or general inquiries, please contact Coolski customer support. Refer to your purchase documentation or the Coolski website for current contact information.