This document describes the Hoshizaki Draft Beer Dispenser, available in models DBF-40SAC, DBF-40WAC, and DBF-25SAC. This device is specifically designed for dispensing draft beer and is intended for commercial use.
Function Description
The Hoshizaki Draft Beer Dispenser is a self-contained unit that chills and dispenses draft beer. It utilizes a water tank with an agitator motor to circulate cooling water, which in turn cools the beer lines and the beer keg. The system connects to a CO2 gas cylinder to pressurize the beer keg, pushing beer through the lines and out of the beer tap. The CO2 gas regulator allows for precise control of the pressure, ensuring optimal beer flow and carbonation. The dispenser is designed for easy installation and operation, providing a consistent and properly chilled beer serving experience.
Important Technical Specifications
The dispenser models vary slightly in capacity and dimensions. All models operate on a 1-phase 220-240V 50Hz power supply.
DBF-40SAC / DBF-40WAC:
- Dispensing Capacity: 40 L (30°C to 8°C / 4 hours)
- Ice Making Time: 4 hours (initial cooling water temp 30°C)
- Ice Storage Capacity: 8 L
- Dimensions: 330mm (W) x 646mm (D) x 510mm (H)
- Refrigerant: R134a, 120g
- Weight: Net: 28kg (Gross: 31kg)
- Ambient Temp: 5 - 35°C
DBF-25SAC:
- Dispensing Capacity: 25 L (30°C to 8°C / 4 hours)
- Ice Making Time: 4 hours (initial cooling water temp 30°C)
- Ice Storage Capacity: 4 L
- Dimensions: 255mm (W) x 578mm (D) x 460mm (H)
- Refrigerant: R134a, 95g
- Weight: Net: 24kg (Gross: 27kg)
- Ambient Temp: 5 - 35°C
The cooling water temperature is maintained between 5°C and 35°C, while the beer keg temperature should be between 10°C and 30°C for normal operation. The unit requires a dedicated electrical circuit with a 10A fuse. The CO2 gas pressure range for beer kegs is typically 0.15 - 0.20 MPa (Scale 1.5 - 2.0) for 10°C, 0.22 - 0.25 MPa (Scale 2.2 - 2.5) for 20°C, and 0.32 - 0.35 MPa (Scale 3.2 - 3.5) for 30°C.
Usage Features
The dispenser is designed for straightforward operation, including initial setup, daily dispensing, and end-of-operation procedures.
Installation:
- The unit must be placed on a firm and level surface with adequate ventilation (at least 5cm clearance on all sides).
- Electrical connections require a properly earthed outlet and a dedicated circuit.
- Gas and beer circuit connections involve attaching the CO2 gas cylinder, regulator, beer hose, and keg coupler to the beer keg.
- The cooling water tank needs to be filled with water, and the electric conductivity (E.C.) of the water should be checked. If the E.C. is too high (above 300 µS/cm), pure baking soda should be added to reduce it.
- After installation, a trial run is recommended to check for proper operation and any leaks.
Daily Operation:
- CO2 Gas Cylinder Check: Ensure the CO2 cylinder is open and the regulator is set to "0" before connecting. Adjust the regulator to the appropriate pressure for the beer type and temperature.
- Beer Keg Check: Connect the keg coupler to the beer keg, ensuring a secure fit.
- Dispensing Beer: To dispense, pull the beer tap lever quickly towards you until it stops. Moving the lever slowly or stopping it midway can cause excessive foaming. To stop dispensing, return the lever to its original position. For a continuous pour, push the lever hard towards the unit.
- End of Operation: After dispensing, close the main valve of the CO2 gas cylinder and remove the keg coupler.
Important Usage Notes:
- Avoid shaking or rolling the beer keg to prevent excessive foaming.
- Do not store an open beer keg in a refrigerator. Keep it under 30°C.
- The dispenser is not intended for outdoor use or in areas with high heat-producing equipment or where a water jet could be used.
- Always ensure proper ventilation around the unit.
- In high humidity environments, condensation may form inside the machine and drip onto the floor; install the unit in a location where the floor can be affected by water.
Maintenance Features
Regular maintenance is crucial for the longevity and proper functioning of the dispenser. The manual provides detailed instructions for daily, weekly, monthly, and biannual maintenance tasks.
Daily Maintenance:
- Beer Circuit: Flush the beer circuit by connecting a cleaning tank and running water through the system.
- Beer Tap: Disassemble the beer tap, clean it with warm water and a soft cloth, and reassemble.
- Drain Pan: Empty and clean the drain pan.
Weekly Maintenance:
- Cleaning Beer Circuit with Sponge: Use a cleaning sponge with a mixture of warm water (30-40°C) and 10 mL of 10% invert soap (benzalkonium chloride) to clean the beer circuit.
- Disassembly and Cleaning of Beer Tap: Disassemble the beer tap completely, clean all components with a neutral dishwashing detergent, and reassemble.
- Keg Coupler: Clean the keg coupler according to the beer company's instructions.
- Exterior: Wipe the stainless steel exterior with a soft, damp cloth and a neutral dishwashing detergent.
Monthly Maintenance:
- Gas Hose and Beer Hose: Inspect for deformation, damage, and water leak stains. Contact Hoshizaki service company if any problems are found.
Annually / Biannually Maintenance:
- Attachment Plug and Power Cord: Check for dust and ensure the plug is securely plugged into the receptacle. Inspect for damage or loose connections.
- Cooling Water: Replace the cooling water twice a year. This involves unplugging the unit, removing the top panel, draining the old water, and refilling with fresh water.
General Maintenance Guidelines:
- Always use clean hands and cloths for cleaning operations.
- Do not use abrasive materials, solvents, or harsh chemicals that could damage plastic surfaces.
- In case of any malfunction or suspected damage, immediately disconnect the power supply and contact a qualified service technician.
- The manufacturer provides a warranty for defects in material and/or workmanship for the duration specified from the date of installation. Warranty claims require adherence to the prescribed maintenance and operation guidelines.