Cart0 item(s) - 0.00€ 0

  • Your shopping cart is empty!

0

Recirculation pump with Autoadapt Comfort function 15-14

Recirculation pump with Autoadapt Comfort function 15-14
New
Recirculation pump with Autoadapt Comfort function 15-14


0 reviews • Write a review
price from
342.57€
Ex Tax: 342.57€
  • Stock: In Stock
  • Brand: Grundfos
  • Model: 15-14 B TA PM
  • Weight: 2.00кг
Grundfos Grundfos

Available Options

Add to Cart
Buy Now Question?
Add to Wish List Compare this Product

Free fast delivery to your address or a Speedy/Econt office.

Grundfos Comfort 15-14 AUTOADAPT – intelligent hot water recirculation pump

The Grundfos Comfort 15-14 AUTOADAPT is an intelligent recirculation pump for domestic hot water. It learns how the household uses hot water and automatically controls the circulation so that hot water is available when it is needed, without the pump running continuously 24/7.

AUTOADAPT Learns consumption habits and adapts pump performance.
Fast hot water Keeps hot water close to points of use.
Two models Choose between a standard version and a variant with built-in valves.

Main advantages of Comfort 15-14 AUTOADAPT

  • AUTOADAPT function that adapts to the actual hot water usage pattern.
  • Maintains faster availability of hot water at taps, showers and sanitary appliances.
  • Limits unnecessary circulation outside of periods of likely consumption.
  • Reduces the pump's electrical consumption and heat losses in the recirculation line.
  • Records consumption events in a two-week log.
  • Distinguishes consumption patterns during weekdays and weekends.
  • Built-in temperature control mode.
  • Possibility of continuous operation Continuous 100% if necessary.
  • Permanent magnet, single-phase, 12-pole motor.
  • Very low power consumption – 7 W.
  • Self-aligning bearing lubricated by the pumped liquid.
  • Stainless spherical separator between the water and electrical parts of the motor.
  • Double electrical insulation Protection Class II.

How does AUTOADAPT work?

AUTOADAPT uses an external temperature sensor mounted on the flow pipe and a built-in temperature sensor in the pump. The system recognizes when hot water is used, records it in a log and gradually builds a consumption model.

After accumulating enough information, the pump predicts when hot water is likely to be used and turns on circulation in advance. This way, hot water is available during normal consumption hours, and the pump limits unnecessary operation during other times.

Training period

The pump needs approximately two weeks to adapt to the hot water usage pattern. During this period it operates in temperature mode, even when AUTOADAPT is selected. After data accumulation, the pump starts using the consumption register for automatic control.

For proper operation of AUTOADAPT, the external temperature sensor must be installed on the flow pipe at a distance of approximately 20–50 cm from the outlet of the boiler or water heater.

Operating modes

Mode How it works When is it appropriate?
AUTOADAPT The pump records and predicts hot water consumption, then manages switching on and off according to likely need. In households with a repetitive daily or weekly usage pattern.
Temperature control The pump monitors the temperature and operates within an automatically calculated temperature range between Tstart and Tstop. During the initial training period, after a power outage, or when a temperature mode is selected.
Continuous 100% The pump runs continuously at full speed, without automatic control. When constant circulation of hot water is required.

Hygiene features

The pump performs a weekly disinfection function lasting 15 minutes. If a higher temperature is measured at another time during the week, the disinfection cycle is moved to that time. If the pump has been off for eight hours, it turns on the circulation for 15 minutes to flush the recirculation pipe.

Applications

  • Domestic hot water systems in single-family homes.
  • Domestic hot water systems in two-family houses.
  • Recirculation lines to bathrooms, kitchens, showers and sanitary facilities.
  • Systems where hot water consumption has a recurring daily or weekly pattern.
  • Small heating systems.
  • Small cooling and air conditioning systems.
  • Open and closed circulatory systems.

Suitable liquids

  • Clean, thin, non-aggressive and non-explosive water.
  • Domestic hot water.
  • Softened water.
  • Mineral oil-free coolants.
AUTOADAPT is not recommended in recirculation systems where the return water temperature is already regulated by a thermostatic control valve. If AUTOADAPT is used in such a system, the thermostatic valve must be set to its maximum setting to deactivate its regulation function.

Installation guidelines

  • The pump is designed for indoor installation in a non-aggressive and non-explosive environment.
  • The maximum relative humidity is 95%.
  • The ambient temperature must be lower than the temperature of the pumped liquid to limit condensation in the stator.
  • The recommended operating temperature is around 50 °C to limit limescale deposits.
  • To prevent cavitation noise and bearing damage, a minimum inlet pressure of 0.5 bar (5 m water column) is required.
  • The external temperature sensor is installed 20–50 cm from the boiler outlet.
  • Ensure proper flow direction and access to the pump for future servicing.

Construction and materials

Comfort 15-14 AUTOADAPT combines a recirculation pump with a permanent magnet motor, integrated intelligent electronics and an external temperature sensor. The water part is hermetically separated from the electrical part of the motor by a stainless steel spherical separator.

Component Material Purpose
Stator fins Steel They form the magnetic field of the motor.
Stator windings Enameled copper wire They provide electromagnetic drive of the rotor.
Stator housing Aluminum / PA66 Protects the engine's electrical components.
Spherical separator Stainless steel EN 1.4016 / AISI 430 Hermetically separates the water part from the electrical part of the motor.
Rotor module Stainless steel/tungsten carbide The rotor is driven directly by the magnetic field of the stator.
Rotor and impeller Stainless steel, EPDM, PPO, PTFE, graphite They ensure the circulation of hot water.
Pump housing Brass CW617N Suitable for domestic hot water systems when properly selected.
Terminal box cover PC/ABS Protection of electrical connections and control electronics.
Engine cover PPO Protects the engine part.
Cable rings PC/ABS Part of the design of the AUTOADAPT variant.
Temperature sensor External flow sensor Detects hot water consumption through temperature changes in the pipe.
Insulating shells EPP They limit heat loss from the pump housing.

Design advantages

  • Built-in AUTOADAPT control: Analyzes consumption and manages circulation according to predicted need.
  • External temperature sensor: Detects actual hot water usage through temperature changes along the flow pipe.
  • Permanent magnet motor: Provides low power consumption – only 7 W.
  • One bearing point: Reduces friction, noise and electrical power required.
  • Self-aligning bearing: Lubricated by the pumped liquid and does not require separate maintenance.
  • Stainless steel spherical separator: Separates electrical parts from water without a classic shaft seal.
  • Detachable design: The motor can be separated from the pump housing for easier replacement and maintenance.
In the BA PM model, the shut-off and non-return valves are not integrated into the housing. In the BXA PM model, they are built-in, which facilitates installation and future maintenance of the pump.

Approvals and safety

Grundfos Comfort is intended for international use and the document includes approvals for European and other markets, as well as approvals for components in drinking water systems. [14]

Marking / standard Meaning
CE Compliance with applicable European safety, health and environmental protection requirements.
VDE Electrical safety approval/marking specified for the series.
NSF/ANSI 61 Approval for components used in drinking water systems.
NSF/ANSI 372 Compliance with requirements for low lead content in drinking water components.
Protection Class II Double electrical insulation; no PE protective conductor is required for the pump.
IP44 Degree of protection of the electrical part of the pump.
Insulation class F Thermal class of the motor insulation.

Safe operation

  • The pump has double electrical insulation Class II.
  • The motor is impedance protected and short-circuit resistant.
  • No additional engine protection is required.
  • The electrical connection must comply with local regulations.
  • The pump must only be installed indoors.
  • Check the compatibility of the specific product number with the requirements of the local market and drinking water system.
For domestic hot water systems, comply with applicable local hygiene requirements and requirements to limit the risk of legionella.

Comparison of Comfort 15-14 AUTOADAPT models

Both models use the same AUTOADAPT technology and have the same hydraulic parameters. The main difference is in the connection, installation length and the presence of built-in shut-off and check valves.

Characteristics Comfort 15-14 BA PM Comfort 15-14 BXA PM
Type Recirculation pump with AUTOADAPT Recirculation pump with AUTOADAPT and integrated valves
Management AUTOADAPT, temperature control and Continuous 100% AUTOADAPT, temperature control and Continuous 100%
External temperature sensor Yes Yes
Training period Approximately 2 weeks Approximately 2 weeks
Maximum pressure Approximately 1.2 m Approximately 1.2 m
Maximum flow rate Approximately 0.4 m³/h Approximately 0.4 m³/h
Power supply 1 × 230V, 50/60Hz 1 × 230V, 50/60Hz
Power consumption P1 7W 7W
Rated current 0.07A 0.07A
Liquid temperature 2–95°C 2–95°C
Maximum system pressure 10 bar 10 bar
Degree of protection IP44 IP44
Insulation class F F
Joining Rp 1/2" G1"
Mounting length 80mm 140mm
Built-in shut-off valve No – installed separately if necessary Yes
Built-in check valve No – installed separately if necessary Yes
Net weight 1.0 kg 1.35 kg

Which model to choose?

  • Comfort 15-14 BA PM: Choose for a standard recirculation system with an installation length of 80 mm and Rp 1/2" connection. Suitable when the shut-off and non-return valves are already present in the installation or will be added separately.
  • Comfort 15-14 BXA PM: Choose when a 140 mm installation length and G 1" connection are required. The integrated shut-off and non-return valves facilitate installation and allow servicing of the pump without draining the entire recirculation system.
The choice between BA PM and BXA PM is not based on flow or head, as the hydraulic characteristics and AUTOADAPT function are the same. The choice is made based on the available connection, the required installation length and whether you want an integrated shut-off and non-return valve.

The data is in accordance with the provided technical catalogue for Grundfos COMFORT. Check the specific product number, connection type, installation length, presence of shut-off and non-return valve, position of the temperature sensor and compatibility with the specific recirculation system before ordering and installation.

Write a review

Note: HTML is not translated!
Rating
Bad Good