In this video, we will look at the three control modes offered by the COMFORT TA pumps, how they work, and how they can be set. All the components needed for the operation of the control modes are integrated into the pump, eliminating the need for external devices.

To ensure correct operation, the pump must be installed in the return line and the temperature sensor placed on the supply line. The control modes can then be selected by pressing the push button to switch between them. Let’s explore the control modes, starting with AUTOADAPT. The COMFORT TA pumps are delivered with AUTOADAPT enabled. In this control mode, the pump runs hot water recirculation on a schedule that automatically adjusts to the household’s usage patterns.

When the hot water tap is opened, the pump detects the temperature difference between the supply and return sensors, identifying a tapping event. Over time, it learns the household’s hot water usage patterns. When the system predicts that the homeowner is most likely to use hot water, the pump begins circulating the water in the system 20 to 40 minutes beforehand. AUTOADAPT automatically determines the optimal schedule, … removing the need for user intervention or reliance on a clock or timer.

When a hot water recirculation system runs continuously, it can lead to unnecessary heat loss through the pipes. The intelligent scheduling minimises runtime, helping to reduce wasted thermal energy and improve overall efficiency.

During scheduled periods, the COMFORT TA operates only when the water temperature falls below a baseline setpoint, helping to achieve even greater energy savings. This setpoint is determined automatically by the pump. When the pump enters standby based on the schedule and temperature conditions, the AUTOADAPT icon on the pump display flashes green. As the pump continues to learn the household’s hot water usage patterns, the schedule automatically adapts… to reflect any changes in user behaviour. As a result, users don’t need to adjust settings or interact with the pump.

If hot water is needed outside the pump’s estimated schedule, the tap should be opened for five to ten seconds and then closed to conserve water. The Comfort pump will then prepare the hot water, which will be available shortly after.

Upon initial startup, the pump circulates water more frequently during the first two weeks to establish its operating schedule and maintain a comfortable temperature throughout the day. AUTOADAPT also includes two additional features: Vacation mode and Disinfection mode.

In Vacation mode, if no hot water usage is detected for 24 hours, the pump stops and only circulates water for 15 minutes every eight hours to maintain hygiene and prevent stagnation. The pump resumes its operating schedule when hot water consumption is detected twice within 80 minutes.

The Disinfection mode, also known as anti-Legionella mode, functions similarly to features found in modern water heaters. In this mode, the water temperature is raised to around 70°C once a week, to eliminate harmful bacteria and inhibit the growth of Legionella. The COMFORT TA automatically learns when the temperature exceeds the normal setpoint, allowing the pump to anticipate the boiler’s disinfection cycle and circulate hot water through the piping system for 30 minutes. This effectively disinfects the entire system and enhances household safety.

Now let’s look at the Temperature control mode. This mode operates automatically and can be activated via the control panel. When the Temperature control mode is activated, the pump runs continuously whenever the water temperature falls below the ON setpoint, ensuring comfort for homeowners with minimal energy consumption. The ON and OFF setpoints are automatically determined by the pump’s algorithm and the maximum water temperature in the system. When the temperature is met, the pump enters standby and the Temperature control icon on the pump display flashes green.

This control mode is recommended for houses that are not occupied daily, such as holiday or weekend homes. In these types of houses, there isn’t enough time for the pump’s algorithm to learn hot water usage patterns, so it operates based purely on water temperature. Temperature control mode also includes a vacation feature. When no one is home, the pump stops regular circulation and instead runs for 15 minutes every eight hours to prevent water stagnation. Normal operation automatically resumes when hot water usage is detected twice within 80 minutes.

The third control mode for the COMFORT TA is Continuous Operation 24/7. This mode is recommended when households desire to maintain the water heater’s set temperature continuously in the circulation loop. That covers the COMFORT TA hot water recirculation pump’s control modes and how to set them.