FAQ's

Contact machines (dry coolers) - general questions

According to the required output, ie according to the number of people who will be served or according to the number of chilled beverages.

According to the required output, ie according to the number of people who will be served or according to the number of chilled beverages.

In a dry cooler, the beverage coil is cooled by a cooling coil. Thanks to the contact of these two coils and the specially designed thermo block in which these coils are hidden, the beverage is well-chilled within a few minutes, without the need for a long cold. Water coolers have a water container directly inside, chilled by an immersed cooling coil. As a result, an ice bank is formed, followed by cooling of the beverage coil.

Continuous output of the device in liters per hour.

The coolers labeled Green Line are coolers with refrigerant R290 and the adapted cooling system. It is an ecological refrigerant, thanks to which our coolers achieve up to 5% higher performance than previous versions with R134a refrigerant.

The letter "/ K" indicates the built-in air compressor for pressurization.

The dispensing machines marked "/ Kprofi" have a built-in air compressor with the possibility of regulating the compressor pressure. For some "livelier" beers, mostly specialties from mini-breweries, it is necessary to reduce or increase the pressure on the compressor. The beer then flows better and does not foam.

You always need an air tube (outer diameter 8 mm) and a beverage tube (outer diameter 9.5 mm) for the dispensing machine. Then the correct dispense head for the keg- S, A, M-type or other, fittings for the coupler F5 / 8x8 mm for air and F5 / 8x9.5 mm for beer lines. Last, but not least, a sanitation adapter for basic water cleaning.

The built-in air compressor simplifies the use of the device and its operation. It allows the device to be easily transferred without the need to have an external air compressor or cylinder ready for the device. If you have a device without a built-in air compressor, we offer the option of additional installation in contact devices. Contact us for more information.

The Contact dispensing machines (dry coolers) - cooling of beverages

First of all, check that the machine is connected to the mains, then check that the machine is switched on (the appliance is switched on by turning the thermostat clockwise). 

Use the thermostat knob on the front to lower the temperature (by turning the thermostat clockwise)

The cooling time for contact coolers is approximately 10 minutes. 

Your machine may have frozen. This happens when you switch on the cooler immediately without dispensing the first beer after you flushed the lines with water. The water left inside after the previous flushing will freeze. Place the machine in a warm room for a few hours, it should thaw and continue to function properly. If this does not happen, contact our service department.

The Contact dispensing machines (dry coolers) – pressurization

The built-in air compressor simplifies the use of the cooler and its operation. It allows the machine to be easily handled without having to have an external air compressor or a gas cylindr.

Check that the machine is connected to the mains and that the compressor switch is in the “I” position (the switch is located on the back of the refrigeration unit). 

The switching of the air compressor is controlled by an automatic pressure switch, which is set to a switch-off value of 3.2 bar and the value of switching on the compressor is 2.8 bar.

Check all tube connections for air leaks from the line. You can also try cutting the ends of the tubes flat. Occasionally, after a long period of use, the ends of the hoses wear out and then do not seal properly in the quick plastic fitting. The compressor therefore runs continuously as it does not reach the required pressure. 

Yes, the use of a built-in air compressor in the machine is not a requirement. You can turn it off using a separate switch on the back of the cooler. You can then connect any external pressure source.

The Contact dispensing machines (dry coolers) - dispensing

Make sure the beverage is not hot. If so, lower the desired temperature. If you use an external pressure source, you can increase the outlet pressure.

Using the sanitation adapter, you can do a basic rinse with water (we recommend rinsing after each keg is dispensed). With the help of the sanitizing set, you can easily sanitize the machine even in domestic conditions.

Cut about 1 to 2 cm of plastic tube.

Yes, it is possible to replace the tap with another type. To change the tap, it is necessary to replace the fittings built into the machine. We recommend using the professional services.

Water coolers - general questions

Several factors need to be monitored. Power (output), given in liters per hour (l / h), the number of coils (beverage circuits), frequency of use (daily, only weekend, season, etc.) and location (under the bar, in the cellar, on the bar), or according to number of seats (restaurant, garden). 

The dry cooler is easier to operate, does not need to be filled with water and has a faster onset of cooling after switching on. Conversely, water cooler can use chilled water to cool the beverage line. Does not contain an air compressor.

The cooling circuit for water cooling cools the water inside the tank through which the beverage coil passes where the beverage is cooled to the desired temperature using ice water. In the case of water cooling type machine AS, the coils of the cooling circuit and the beverage circuit are not in contact, the cold is transmitted by ice water. With water cooling type CWP, the cooling and beverage loops are in direct contact, the cooling is more efficient and has a faster start-up after switching on (suitable for establishments where it is not open daily).

The water table top machine has taps located directly on the machine. The water under counter machine does not have the taps and it is necessary to connect it with the dispense tower (tap). 

The Green Line model is a series of ecological coolers where R290 refrigerant is used. These coolers have 20% higher efficiency and 20% lower energy consumption. 

The number in the name ranks cooling output, ie according to how many liters of chilled beverage the machine can prepare in 1 hour under ideal conditions (AS-80 = max. 80l / h).

Pressurization (oil-free air compressor or pressure bottle with food gas CO2 / mixed gas + pressure reducer), dispense head, beverage line (tube / python), dispense tower, drip tray and JG fitings for connection.

Water coolers - cooling the beverage

Try checking the power cord connection and the functionality of the outlet. Furthermore, the connection of the cable from the stirrer to the cooling, the position of the main switch and the position of the thermostat in the "0" position. 

Add to the cooling intensity by turning the thermostat knob clockwise. If this does not help, remove the upper lid of the cooler and check that the beverage coils are not frozen and that the impeller is rotating from the stirrer (ice must only be on the perimeter of the water tank).

With the water cooling of the AS series, the beverage is cooled from switching on in approx. 90 minutes and with the CWP series in approx. 15 minutes.

The water circulation in the tank probably doesn't work. Check the function of the stirrer and its connection.

The drink coil probably froze. Switch off the cooling, disconnect the beverage line and allow the cooling to melt. We also recommend checking the pressure source to make sure it is working.

Check that no object has entered the fan impeller. If necessary, check the agitator for something covered or clogged.

Water coolers – pressurization

Either with air - durability approx. 2-3 days, with oil-free air compressor. Or a technical gas - durability about 1-2 weeks. The most commonly used is a cylinder with a pressure reducer with food gas CO2 or mixed gas. A pressure control panel can be used to set different beer / beverage pressures.

Water coolers - dispensing

Check that the required beverage has cooled down sufficiently, or add to the cooling intensity. Also check that no bubbles rise from the keg in the beer tube, in which case the pressure needs to be increased. The last aspect that can affect excessive foaming is the cleanliness of the entire line.

Rinse the cooler with water using a sanitation adapter, which you connect to the water supply system. This is possible even without connection to the water supply system using a sanitizing keg for a chemical sanitation. You can also leave sanitation to professionals.

Disconnect the tube from the speed plastic fitting, cut approx. 2 cm and reconnect. If the condition does not improve, it is necessary to replace the speed plastic fitting.

Gradually check the connection of the tubes, the position of the dispense head lever (downward position), whether there is no sanitary ball left in the beverage line after sanitation, whether there is a non-returned valve turned flat down inside the dispense head or whether the cage above the sanitary ball is missing. Also check that the beverage line has not frozen.

Horizontally, even tens of meters, but only 7 m high.

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