Cart0 item(s) - 0.00€ 0

  • Your shopping cart is empty!

0

Recirculation pump with built-in clock Comfort 15-14 T DG Timer

Recirculation pump with built-in clock Comfort 15-14 T DG Timer
New
Recirculation pump with built-in clock Comfort 15-14 T DG Timer
0 reviews • Write a review
price from
253.09€
Ex Tax: 253.09€
  • Stock: In Stock
  • Brand: Grundfos
  • Model: 15-14 T BDT 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 T DG Timer – recirculation pump with digital clock

The Grundfos Comfort 15-14 T DG Timer is a domestic hot water recirculation pump with a built-in digital timer. It keeps hot water close to taps and showers during set consumption times, limiting unnecessary circulation and heat loss during the rest of the time.

Digital timer Operates according to preset or customized time periods.
Lower losses Limits constant circulation outside of hours of actual consumption.
Two models Choose between a standard version and a variant with built-in valves.

Main advantages of Comfort 15-14 T DG Timer

  • Built-in digital timer for operation on preset or customized time periods.
  • Faster access of hot water to taps, showers and sanitary appliances.
  • Limits unnecessary hot water circulation outside selected periods.
  • Reduces heat losses along the recirculation line.
  • It can also operate in Continuous 100% mode.
  • 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.
  • Easy setting of operating hours directly from the pump panel.

How does a digital timer work?

The built-in digital timer allows the recirculation pump to operate only during the hours when the household typically uses hot water. Thus, the Comfort 15-14 T DG Timer provides quickly available hot water in the morning and evening, without maintaining continuous circulation during the rest of the day.

Settings are made directly from the pump control panel. Factory-set periods can be used or an individual schedule can be created according to the household routine.

Factory-set working periods

Period Factory setting Typical application
Morning 06:00–09:00 Shower, wash and get ready for work or school.
Lunch 11:00–13:00 Using hot water around lunchtime.
Evening 16:00–21:00 Bathing, washing and usual evening consumption.
The factory periods are indicative. For an optimal balance between comfort and economy, set the timer according to the actual hours of hot water use.

Operating modes

  • Digital Timer: The pump only runs during the set hours.
  • Continuous 100%: The pump runs continuously at full speed, without a set schedule.

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.
  • 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.
For liquids with a higher viscosity than water, the pump performance is reduced. For example, 50% glycol at 20 °C can reduce the hydraulic performance by approximately 15%.

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.
  • Ensure proper flow direction and access to the pump for future servicing.

Construction and materials

Comfort 15-14 T DG Timer combines a circulation pump with a permanent magnet motor and a digital control module. 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 digital control module.
Engine cover PPO Protects the engine part.
Insulating shells EPP They limit heat loss from the pump housing.

Design advantages

  • Built-in digital timer: Allows setting of the clock and operating periods directly from the panel.
  • 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 maintenance or replacement.
In the BDT PM model, the shut-off and check valves are not integrated into the housing. In the BXDT PM model, they are built-in, which facilitates installation and future service.

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.
In domestic hot water systems, it is important to comply with applicable local hygiene requirements and requirements to limit the risk of legionella.

Comparison of Comfort 15-14 T DG Timer models

Both models have a built-in digital timer and operate with 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 T BDT PM Comfort 15-14 BXDT PM
Type Recirculation pump with digital timer Recirculation pump with digital timer and built-in valves
Management Digital Timer or Continuous 100% Digital Timer or Continuous 100%
Factory timer periods 06:00–09:00, 11:00–13:00, 16:00–21:00 06:00–09:00, 11:00–13:00, 16:00–21:00
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 1.2 kg

Which model to choose?

  • Comfort 15-14 T BDT 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 BXDT PM: Choose when a 140 mm installation length and G 1" connection are required. The built-in shut-off and non-return valves facilitate installation and allow servicing of the pump without draining the entire recirculation system.
The choice between BDT PM and BXDT PM is not based on flow or head, as the hydraulic characteristics are the same. The choice is made based on the available connection, the required installation length and whether you want a built-in shut-off and check 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 and compatibility with the specific system before ordering and installation.

Write a review

Note: HTML is not translated!
Rating
Bad Good