Grundfos Pump COMFORT 15-14 BX TA

COMFORT TA is an efficient circulator designed for hot-water recirculation in residential buildings with a dedicated
return line. It is compatible with all types of water heater tanks, tankless systems, solar or heat pumps regardless of
whether the system has mixing or tampering valves installed.
The pump features a compact housing and a permanent magnet with an integrated control unit.
The spherical rotor, equipped with an impeller, ensures optimal functionality supported by a robust single-bearing ball
system.
The drinking-water approved brass pump housing guarantees both safety and reliability.
COMFORT TA moreover features a built-in temperature sensor to maintain water temperature.
The user-friendly interface features LEDs and push-buttons on the operating panel. This offers an intuitive way to
display and set operating times and control modes and ensures a comfortable and energy-efficient experience for
residential use.
COMFORT TA features three control modes: AUTOADAPT, temperature and continuous 24/7.
With the AUTOADAPT control mode, the pump quickly learns usage patterns throughout the day and ensures hot
water is available only when needed via an external sensor on the supply pipe.
The pump can therefore differentiate between mornings, evenings, weekdays, weekends, and periods of inactivity,
such as vacations, saving energy and water by allowing the pump only to operate when required.
After 24 hours of detecting no hot water usage, the pump automatically enters vacation mode and resumes operation
when demand for hot water arises.
During the first two weeks after installation, the pump frequently starts based on temperature control to ensure
immediate comfort until the usage pattern has been learned. The pump provides, regardless of usage pattern, instant
comfort when it detects demand for hot water.
Once a week, the pump runs a 15-minute disinfection (anti-legionella) cycle. The water heater must enable that
function once a week.
The temperature control mode incorporates both the external and internal sensors for more accurate water
temperature measurement and activates the pump when the water temperature drops below a certain level.
The on/off temperatures are automatically adjusted based on the maximum temperature measured in the system.
The maximum temperature of the system is measured constantly, allowing dynamic adjustment of the on/off
temperatures.
This mode also includes automatic vacation mode for enhanced energy efficiency which makes it ideal for vacation
homes.
Continuous 24/7 control mode
Pump operates continuously 24 hours a day.
The product offers:
• Q-H performance that is designed for single—and multi-family homes, depending on the required duty point
to accommodate heat loss in a specific pipe layout.
• Heat loss reduction by 67 % compared to continuously running pump.
• Low power consumption and silent operation.
• Compliance with pipe manufacturers’ flow velocity limits, including DN 15, DN 20 PEX, copper, and others.
• Drinking-water approval, ensured by the brass pump housing, stainless-steel rotor, and composite impeller.
• A design that makes it easy to clean limescale and foreign deposits by removing the pump head, enabling the
product to meet unlimited water hardness requirements.
• Dry-running protection to prevent failure if the system runs out of water.
• Multiple installation positions, even with the pump head pointing downwards.
• A pump head designed to fit brass pump housings of old and new pumps of the same design, even from
different pump manufacturers (such as WILO, VORTEX, LOWARA, DAB and others).
• Easy electrical installation, which is provided by a pre-assembled power plug with a 1.5 m cable and a double
insulation protection design, which eliminates the need for a ground wire.
• Insulating shells for heat loss reduction.
• Non-return and shut-off valves included in “BX” variant, reducing installation cost.
• An optional venting flange that provides a simple way to vent or drain the system without the need to install
an additional venting valve permanently.
• Optional fittings for pipe connections in different sizes and types.
• Optional non-return and shut-off valves are available