what water temperature and pressure does your model need

The proper operation of professional KAMMAK rinsing machines is directly dependent on maintaining precise water temperature and pressure parameters, which are critical for achieving hygiene standards and protecting the equipment from damage. Each model requires specific value ranges, as too low pressure leads to inefficient rinsing, while excessive values can damage hoses and pump systems.

The Critical Importance of Correct Water Pressure

For the normal operation of most KAMMAK models, the optimal water inlet pressure is in the range of 2 to 6 bar, with the minimum limit of 1.5 bar being the absolute threshold for starting the cycle. If the pressure drops below this limit, the pressure pump cannot generate sufficient force from the spray nozzles to mechanically remove food residues, forcing the operator to extend the cycle and unnecessarily waste water and energy. Conversely, pressure above 7 bar can cause rubber seals to burst, plastic baskets to deform, or delicate membranes in solenoid valves to be damaged.

In practice, we have encountered a case where a kitchen without pressure reduction connected the machine directly to the public supply with a pressure of 8 bar, which over the course of two weeks caused a leak through the pump body. It is therefore important to install a stabilizing valve that maintains pressure within a safe range even when the city network pressure fluctuates. For more detailed information on technical connections and required fittings, we recommend reading the article on installation and connection to the water and sewage system.

Water Temperature: Balancing Efficiency and Consumption

The incoming water temperature should be set in the range of 15 to 25 °C, as KAMMAK machines are designed to ensure heating during the process using their own heaters depending on the selected program. If the water is too cold (below 10 °C), the heaters operate at maximum capacity for a longer time, significantly reducing the lifespan of the heating elements and increasing electricity consumption. On the other hand, if the incoming water is too hot (above 30 °C), boiling may occur in the closed system before the programmed point is reached, which activates the safety shutdown and interrupts the cycle.

• Winter: In cold areas, it is necessary to check that the incoming water temperature does not drop below 10 °C due to the risk of freezing in the pipes.
• Summer: In summer months, warm water from the tap can cause premature evaporation in the tank, leading to an error message "lack of water".
• Protection: Regular temperature checks help prevent the formation of limescale, which occurs faster at extreme temperatures.

Difference Between Inlet and Working Temperature

An important concept is the difference between the temperature of the water coming from the source and the temperature the machine achieves inside the chamber during the main rinsing. While the incoming water serves only as a medium for the heater, the working temperature ranges from 50 to 90 °C depending on the selected cycle. KAMMAK machines have built-in thermostats and sensors that control the heaters to maintain a constant temperature even when cold water is added to the system.

This system allows for flexible operation even in cases where only cold water is available, while at the same time protecting the device from overheating. When choosing a model, it is advisable to consider whether you need machines with higher maximum heating for heavy grease, or standard models for regular washing, which you can verify in our KAMMAK product range.

Maintenance and Parameter Checks

Regular maintenance and service intervals include not only filter cleaning, but also calibration of pressure and temperature gauges, which are often integrated into the control unit. We recommend checking the water pressure at the inlet manually once a month using an external manometer and comparing it with the readings on the machine's display to detect possible leaks or clogged valves. Neglecting this check can lead to the machine functioning but not achieving the required cleanliness of the dishes, which is a common cause of complaints in catering operations.

• Monthly Check: Check the pressure and temperature of the incoming water and compare them with the production specifications.
• Cleaning of Inlet Filters: Deposits in the filters can reduce water flow by up to 30%, simulating low pressure.
• Calibration: If the readings on the display are unreasonable, it may be a sensor error that requires replacement or reset.

Practical Examples from Operation

In practice, we have recorded a situation where a restaurant used old copper pipes that, after years of corrosion, released copper oxide into the water, causing black deposits on the heaters and subsequent overheating. The solution was the installation of quality filters and regular water quality checks, which extended the life of the machine by several years. Another common problem is connecting the machine to pumping stations without a pressure balancing tank, which leads to constant starting and stopping of the pump with every tap opening.

For those looking for a reliable solution to their needs, we recommend looking at the current offer of KAMMAK rinsing machines, where you will find models adapted to various conditions. Proper operation of the device is not only about following numbers, but also about understanding the mutual relationships between pressure, temperature, and cycle time, which will allow you to maximize the efficiency of your kitchen.

Calculation of Required Heater Power

This diagram shows how the thermal power required to achieve the working temperature is calculated at different water flow rates, which is key to correctly dimensioning the machine.

Hydraulic circuit diagram with safety valve

Technical solution illustrating the placement of pressure reduction and the safety valve in the supply pipe to protect against excessive pressure.

Frequently asked questions

How does low water pressure affect the cleanliness of the wash?

Low pressure below 1.5 bar means that the spray nozzles do not have sufficient force to remove deposits, which leads to incomplete cleaning and the need for a repeat cycle.

Can I use cold water directly from the tap?

Yes, KAMMAK machines are designed for cold water (15-25 °C), but it is important to ensure that the temperature does not drop below 10 °C in winter to avoid freezing.

What should I do if water pressure fluctuates during the day?

In the case of pressure fluctuations, it is essential to install pressure reduction or a balancing tank to ensure a stable water supply for the proper operation of the pump.

Proper handling of temperature and pressure parameters is the basis for long-term and trouble-free operation of your KAMMAK rinsing machines, which minimizes repair costs and energy consumption. By following the recommended procedures and regularly checking the parameters, you will ensure that your equipment always operates at maximum capacity.

Do you have a question on this topic?

Not sure or dealing with a specific situation in your home? Write to us - we are happy to help.