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Step-by-step instructions for setting the pump's timer control dial.
Visual guide to the timer's ON and OFF operational modes.
Guide on how to adjust the pump's temperature control settings.
Explains timer operation linked to temperature for specific BUT/BXUT models.
Step-by-step guide for cleaning the pump components.
Lists suitable systems and environments for the Grundfos Comfort pump.
Details on pump head, pressure, and temperature operational limits.
Step-by-step instructions for setting the pump's timer control dial.
Visual guide to the timer's ON and OFF operational modes.
Guide on how to adjust the pump's temperature control settings.
Explains timer operation linked to temperature for specific BUT/BXUT models.
Step-by-step guide for cleaning the pump components.
Lists suitable systems and environments for the Grundfos Comfort pump.
Details on pump head, pressure, and temperature operational limits.
This manual describes the Grundfos Comfort series of circulator pumps, designed primarily for domestic hot water systems in single and two-family houses, as well as for cooling and air-conditioning systems. These pumps are engineered for both open and closed systems, ensuring efficient and reliable circulation of hot water throughout a building.
The primary function of the Grundfos Comfort pump is to provide instant hot water at the tap, eliminating the wait for hot water to arrive from the water heater. This is achieved by continuously circulating a small amount of water through the hot water pipes, maintaining a desired temperature within the system. This not only enhances user convenience but also contributes to water conservation by reducing the amount of cold water run down the drain while waiting for hot water.
The Grundfos Comfort series offers several models, including B, BT, BU, BUT, BX, BXT, BXU, and BXUT, each with specific features tailored to different user needs.
Installation Flexibility: The pumps are designed for easy installation, as illustrated in the manual. They can be mounted in various orientations (horizontal, vertical, or angled) as long as the motor shaft remains horizontal, ensuring proper lubrication and operation. The manual emphasizes the importance of correct alignment using a spirit level during installation to prevent issues. The pump should be installed in a location that is easily accessible for maintenance and where it is not exposed to fire hazards or extreme temperatures. It is crucial to ensure that the pump is not run dry, as this can cause damage.
Temperature Control (BU/BUT/BXU/BXUT models): Certain models, specifically those with 'U' in their designation (BU, BUT, BXU, BXUT), incorporate a temperature control feature. This allows users to set a desired water temperature, typically between 35°C and 65°C. The pump will then operate to maintain the water within this set temperature range, automatically turning on when the water temperature drops below the set point and turning off when it reaches the desired level. This intelligent control ensures energy efficiency by preventing unnecessary pump operation. The manual shows a dial for adjusting the temperature and an indicator light that illuminates when the pump is active.
Timer Function (BT/BUT/BXT/BXUT models): Models with 'T' in their designation (BT, BUT, BXT, BXUT) are equipped with a built-in timer. This feature allows users to program specific operating periods for the pump, aligning with their daily hot water usage patterns. The timer mechanism, depicted with a clock face and adjustable pins, enables precise scheduling. Users can set the pump to run during peak demand times, such as mornings and evenings, and remain off during periods of low demand, further optimizing energy consumption. The manual demonstrates how to set the timer by pushing in or pulling out the pins to define ON and OFF intervals. An indicator light confirms the pump's operational status.
Combined Temperature and Timer Control (BUT/BXUT models): The most advanced models, BUT and BXUT, combine both temperature and timer control features. This offers maximum flexibility and energy savings. Users can program the pump to operate only during specific time windows and only when the water temperature falls below the set threshold within those windows. This dual control mechanism ensures that hot water is available precisely when needed, without continuous operation, leading to significant energy and cost savings.
Quiet Operation: The Grundfos Comfort pumps are designed for quiet operation, with a sound pressure level lower than 43 dB(A). This ensures that the pump's operation does not cause disturbance in the home environment.
The manual provides clear instructions for basic maintenance tasks, ensuring the longevity and optimal performance of the pump.
Draining the System: Before any maintenance, it is essential to turn off the power to the pump and close the shut-off valves on both sides of the pump to isolate it from the system. This prevents water leakage and ensures safety. The manual illustrates the process of closing the valves and then draining any remaining water from the pump.
Cleaning the Rotor Unit: Over time, the rotor unit of the pump can accumulate debris or scale, affecting its efficiency. The manual details how to remove the rotor unit for cleaning. This involves unscrewing the pump head, carefully extracting the rotor, and then cleaning it with a brush and water. This step is crucial for maintaining optimal flow and preventing blockages.
Checking for Blockages: The manual also suggests checking for any blockages in the pump's internal components during maintenance. This ensures that water can flow freely and the pump operates without undue strain.
Reassembly: After cleaning, the rotor unit should be carefully reinserted, and the pump head reattached, ensuring all connections are secure. The shut-off valves can then be reopened, and the power restored.
Troubleshooting: The manual implies that if the pump is not functioning correctly, basic checks such as ensuring power supply, correct timer settings, and clear rotor unit are the first steps. The green indicator light on the pump serves as a visual cue for its operational status, helping in quick troubleshooting.
In summary, the Grundfos Comfort series offers a range of circulator pumps designed for convenience, energy efficiency, and reliable hot water delivery in residential settings. With features like flexible installation, intelligent temperature and timer controls, and straightforward maintenance procedures, these pumps aim to enhance the comfort of modern homes while promoting water and energy conservation.
General| Model | UP 20-14 BX |
|---|---|
| Category | Water Pump |
| Max Head | 14 m |
| Voltage | 230 V |
| Frequency | 50 Hz |
| Port-to-port length | 180 mm |
| Maximum operating pressure | 10 bar |
| Enclosure class | IP44 |
| Insulation class | F |
| Type | Circulating pump |
| Connection Size | 1 inch |
| Approvals | CE |
| Installation | In-line |
| Material | Stainless steel |
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