CombiSteel 7078 Series Refrigerated & Hot Buffets

1. Introduction

This device, the Cold/Hot Buffet Server, is designed for use in service venues such as Restaurants, Cafes, Bars, Fast-food establishments, Hotels, Hospitals, and other public institutions. It is used to keep food cold and present it in a buffet setting.

Do not use this device for any other purpose. It is essential to read this manual carefully for assembly, use, and maintenance. Ensure the electrical network used to power the device is installed by qualified personnel according to local regulations and meets the criteria in the technical tables.

Before contacting technical service, please refer to the instructions in this manual. For any questions regarding assembly, use, or maintenance, contact your nearest technical service provider.

To ensure you get the most benefit from this product, please read the manual and make it available to other users.

2. Technical Tables

3. General Setup - Control Panel

The control panel and setup involve several components:

• Lighting Stand: The upper structure supporting the lighting.
• Buffet Base: The main body of the unit.
• Control Panel Area (Magnified view):
• A: On/Off Switch & Light Switch
• B: Temperature Adjustment / Digital Thermostat
• Assembly Components:
• 1. Mounting hole
• 2. Chrome Cap
• 3. Stainless Steel Post
• 4. Post Connection Adapter
• 5. Sneeze Guard Glass

4. Carrying & Moving - Safety Warning Labels

⚠️ CAUTION: Before moving the device, ensure the power cable is unplugged from an electrical outlet.

• The unit can be moved manually on its wheels. Ensure wheel brakes are not applied before moving.
• Avoid moving on uneven surfaces or steep inclines where control may be lost. Prevent bumping the device.

5. Safety Warning Labels

The device features several warning labels:

• Ground Location: Indicates proper grounding is essential.
• Electrical Current: Symbol indicating electrical hazard.
• Input Power Info: Shows voltage and frequency (220V-240V NPE~/50Hz).
• General Warning Info: Includes a warning in Turkish: "SU İLE YIKAMAYINIZ" (Do not wash with water).

Electrical Connection Values: VOLTAGE: 220 - 240 V, NETWORK CONNECTION: SINGLE PHASE, GROUNDED, FREQUENCY: 50 Hz.

6. Safety Instructions and Standards

All assembly and installation must adhere to effective standards. The manufacturer is not liable for malfunctions caused by incorrect setup or use.

• Ensure the electrical network and outlet are compatible with the device's requirements before connecting power.
• Ensure electrical connections are made according to proper standards; the manufacturer is not responsible for damage from faulty connections.
• Keep flammable materials away from the device.
• Always switch off electrical components before working on or checking the device.
• In case of an electrical fault, contact your local service provider. Do not touch or handle the device while checking for faults.
• Replace faulty components only with original, factory-approved spare parts. Warranty is void if non-original parts are used.
• If faults are detected, turn off the device, unplug the power cable, and contact your local service provider. Do not use the device until properly repaired.
• Repairs by unauthorized personnel can cause damage and will void the warranty. All repairs must be performed by authorized service technicians.

⚠️ WARNING – COLD BUFFETS: Risk of fire or explosion due to flammable refrigerant (R290). Service and repairs must be carried out by trained personnel.

7. Sample Device Sticker

The device sticker provides essential information:

• Product Name (e.g., Cold Service Trolley)
• Model (e.g., SLD-311)
• Dimensions (mm)
• Power (kW)
• Voltage (V) / Frequency (Hz)
• Current (Amper)
• Supply Cable (mm²)
• Connection Type (e.g., CEE 7/7 TYPE F 16A)
• Manufacturer details and contact information.
• Product Date and Serial Number.

8. Electrical Connection - Assembly and Use Instructions

Follow the electrical standards of your country when connecting the device to the power network. Ensure the power supplied matches the device's information sticker.

9. Assembly

1. Carefully remove the device from its packaging.
2. Before first use, peel off the protective PVC coating from all surfaces. Wipe surfaces with a damp cloth, then a dry cloth.
3. Do not use alcohol- or solvent-based cleaners. Use mild soap and water on stainless steel surfaces, then dry with a clean cloth.
4. Before first use procedure:
• If the device was recently moved, allow 3 hours before turning it on to let the refrigerant settle.
• When ready, run the unit with empty GN containers covering the tubs for 1 hour before adding food.

10. Use Instructions

1. Connect the power cable to a grounded 220-240V outlet.
2. Turn the power switch on the control panel to the 'ON' position.
3. Use the 'SET' button and arrow keys on the digital thermostat to adjust the desired temperature. Releasing 'SET' displays the current internal temperature.
4. The indicator light shows when the cooling motor/heating element is active.
5. Cold Buffet: Use GN containers to cover the entire tub for even air distribution. Do not operate without sufficient food containers for maximum efficiency.
6. Hot Buffet: Adjust water level as needed. Monitor water level closely due to rapid steam generation at high temperatures to ensure proper bain-marie function and safety.
7. Divide food into serviceable portions in GN containers before placing them in the unit for even temperature preservation.
8. Cold Buffet: Water condensation in the bottom pan can be drained via the provided drain plug.
9. Hot Buffet: Adjust heating to keep food warm; the unit is not for cooking.

For highest energy efficiency:

• Do not leave tubs uncovered for extended periods.
• Do not place hot food or drinks directly into the unit.
• Cold Buffet: Set thermostat to lower temperatures (3-5°C recommended).
• Cold Buffet: Avoid direct sunlight or hot ambient temperatures (max recommended 25°C, 60% humidity).
• Hot Buffet: Avoid cold temperatures with uncovered food, as this can cause uneven temperatures.

11. Cleaning

1. Unplug the power cord before cleaning.
2. Use a soft sponge with warm soapy water for food contact surfaces.
3. Do not use harsh cleaners or toxic chemicals.
4. Do not use pressure washers.
5. Ensure no water enters the control/electrical cabinet.
6. Cold Buffet: Keep the condenser free of dust and debris. Clean periodically with a dry brush.

⚠️ WARNING: Do not use flammable or dissolving materials like gasoline, paint thinner, acids, etc.

12. Maintenance

Hygiene: Maintain hygiene of the device and its operating environment, crucial for food service establishments.

Maintenance: Periodic maintenance is required every 6 months. Ensure all electrical components are operational and mechanical components are clean and intact. Check:

• Thermostat operation/adjustment.
• Heating element operation (under water reservoir).
• Fan unit operation and ensure blades are free of obstacles.
• Ensure no damaged or missing body components that could affect function.

Repair: Faulty components must be replaced with original, factory-approved spare parts. Replacement, disassembly, and reassembly must be done by the manufacturer or an authorized service representative. Unauthorized repairs void the warranty.

13. Electrical Circuit Diagram

The document includes circuit diagrams for both Cold Buffet and Hot Buffet units, detailing components such as:

• ON/OFF Switches (Lighting, Cooling/Heating)
• Digital Temperature Controller
• Thermostat Probe
• Compressor (Cold Buffet) / Heating Element (Hot Buffet)
• Fan Motor (Cold Buffet)
• LED Adapter
• LED Lights
• Wire Terminal Block

14. Warranty - Coverage and Exclusions

The product is guaranteed against material, production, and assembly defects. Contact your local dealer for detailed warranty information.

Exclusions: Faults and damages arising from:

• Misuse or improper maintenance as per the manual.
• Loading/unloading, moving, or unpacking after delivery.
• Irregular supply voltage, non-grounded or faulty connections by unauthorized persons, or using voltage different from the sticker.
• External causes like flood, fire, etc.
• Exposure to destructive chemicals/synthetics, accidental physical damage, neglect, unauthorized intervention, misconduct, or misuse.
• Improper gas supply connections.
• Improper electrical power supply connections.
• Incorrect LPG high-pressure safety valve usage.

These exclusions void the limited warranty.

Important Note on Service: Intervention for malfunctions must only be carried out by an authorized service representative. Intervention by any other party is prohibited and voids the warranty. The manufacturer is not liable for faulty work by unauthorized parties, and non-original components will void the warranty.