Overview: General.

Logatherm WLW286 A/AR air to water heat pump

  •  Heat pumps for outdoor installation in the medium output range
  • Three outputs: 17, 22 and 38 kW (for A-7/W35)
  • Logatherm WLW286-38 AR as a reversible variant for heating or cooling

Overview: Operating mode.

Single energy source and bivalent operating mode.

  • Single energy source operation as sole main heat generator
  • Bivalent systems as base-load heat generator and with Buderus boilers for peak load
  • Flexible heat pumps cascading possible (up to quadruple cascade)

Overview: Application areas.

Use in new builds:

  • For a large single-family house (Logatherm WLW286-17/22 A)
  • For a multi-family house up to 15 residential units (each residential unit approx. 75 m²; 30 W/m²)
  • Office/commercial building (car dealership, workshop)
  • Kindergarten, school
  • Cooling via underfloor heating system

Overview: Application areas.

Use in existing buildings:

  • Building renovation in a single- or multi-family house
  • Renovation in a multi-family house with boiler for peak load
  • Exchange of existing, inefficient heat pumps
  • Integration or expansion in existing hydraulics

Overview: System provider.

Customer advantages from system provider Buderus

  • Complete product range from a single source
  • A contact partner for personal customer support
  • Expert assistance in the planning and offer phase
  • Comprehensive customer services, ranging from wiring assistance to commissioning to premium maintenance
  • Service security 24/7, 365 days a year

Service: Subsidy.

Climate protection is worth it.

Renewable heating systems and efficient buildings are being promoted as part of the climate package. This includes heat pumps, pellet stoves and solar thermal systems. Benefit from state subsidies and let us advise you.

Our free advice hotline:

0800 0 2030 00

Monday-Friday, 7 a.m. to 7 p.m.
www.buderus.de/beg

Service: Subsidy.

With febis for optimum funding for modernisation.

  • Customers interested in modernisation of an individual measure with a renewable heating system receive straightforward advice from the subsidy professionals at febis
  • Online service based on checklist and heating system quote
  • Our own online information at www.buderus.de/foerderservice-ek and funding hotline on +49 (0) 6190 9263 492*
* The funding hotline employees are available to you Monday to Friday between 9 a.m. and 5 p.m.

The febis funding service for trade customers.

  • Web-based funding service application especially for contractors
  • Reduced work and research effort
  • Customer acquisition and retention through a range of services in a multi-stage process
  • Information service:
    www.fachkunden.buderus.de/fachkunden-foerderservice and funding hotline on +49 (0) 6190 9263 431

Engineering: Cooling circuit.

The cooling circuit: Solid and powerful.

  • Two Copeland compressor ensure needs-based output
  • Long-lasting thanks to uniform runtime distribution
  • Hermetically sealed cooling circuit
  • ETAs up to 133% ensure efficient operation
  • Flow temperature up to 65 °C
  • Logatherm WLW286-38 AR with reversible cooling circuit for cooling
  • Heat pump made in Germany

Engineering: Structure and design.

Strength is in the details.

  • Sturdy frame design facilitates transport by crane or pallet truck
  • Logatherm WLW286-38 A/AR can be transported using lifting brackets
  • Routing of all supply lines from below
  • High output in a small space:
    Footprint of only 1.9 m² (Logatherm WLW286-38 A)

Engineering: Structure and design.

Strength is in the details.

  • Two-colour surface finishing for a discreetly elegant look
  • Conical shell geometry for a slim design on Logatherm WLW286-17/22 A models
  • Optional protective weather guard covers the fan front

Engineering: Sound optimisation.

Electronics and mechanics:

  • Electronic fan control
  • Fan geometry
  • Enclosed compressor room and separation of structure-borne noise for compressors
  • Conical shell geometry for less air vibration (Logatherm WLW286-17/22 A)
  • Optional protective weather guard prevents wind interference on fan speed and reduces the sound power by -2 dB(A)

Overview: System diversity.

Hydraulics with:

  • Single or cascade systems
  • Bivalent systems
  • Series or parallel buffer integration
  • Active cooling operation (Logatherm WLW286-38 AR)

Overview: System diversity.

Highly versatile.

Domestic hot water heating with:

  • Logalux SH 400/500/700 cylinder also as a preheating stage
  • Logalux FS/2 to FS160/3 E freshwater station

 

System integration with:

  • Logalux PW 200/500/1000 buffer
  • Logalux PSP 1000K buffer for cooling (Logatherm WLW286-38 AR)

Overview: System diversity.

Logalux TP300 hydraulic tower for Logatherm WLW286‑17/22 A:

  • 300 l series buffer with a dual flow header without differential pressure
  • 6 kW heater rod
  • Primary and heating circuit pump
  • Extendible by one additional heating circuit with mixer (accessory and modification required)
  • Prepared connection for external DHW cylinder
  • Safety valve

Overview: System diversity.

Wide range of system accessories:

  • Pumps for primary circuit and heating circuit
  • Electrical heater rod for domestic hot water and buffer cylinder
  • Hydraulic connection and distribution system
  • special accessories for cooling (buffer, dewpoint and reference room monitoring)

Control: Design.

Logamatic WPM100 heat pump manager

  • Included in the scope of delivery for every Logatherm WLW286 A/AR
  • 4.3" colour display with a tile look
  • User interface with touch screen function
  • Clear text display and numerous graphically supported menus
  • Intuitive commissioning program
  • Colour assignment of functions for electrical connections

Control: Basic function.

Three selectable basic functions.

  • Always a heating circuit without mixer (grey function block) as a fixed function and three other functions, which can be freely selected, such as:
  • Domestic hot water (e.g. yellow function block)
  • One heating circuit with mixer (e.g. green function block)
  • Bivalent/bivalent renewable (e.g. red function block)
  • Pool
  • Cooling (Logatherm WLW286-38 AR)

Control: Additional functions.

Additional functions:

  • With the functional expansion module (FEM2), two additional functions are possible which have not yet been selected as basic functions
  • The FEM2 is simply fitted in the Logamatic WPM100 in the free space of the mounting rail

Control: Additional functions.

Going beyond standards.

  • Detection of amount of heat integrated into the software
  • 0–10 V setpoint hook-up of an external control system possible
  • Energy supplier lockout contact
  • Ready for energy control unit
  • Display background colour informed via the menu level
    • Grey = End customer menu
    • Blue = Service menu
    • Red = Customer service menu

Control: Logamatic WPM100K cascade control

Controls perfect interaction.

  • With the Logamatic WPM100K cascade control, up to four of the same or different Logatherm WLW286 A can be cascaded
  • The Logamatic WPM100K links all Logamatic WPM100 via a communication line

Connectivity: KNX

As diversely connected as you want.

  • Can be connected to a superordinate/external building management system via KNX
  • Required accessory: Interface card KNX WPM

Connectivity: Modbus interface.

Connectivity thanks to a modbus interface.

  • Can be connected to a superordinate/external building management system via Modbus RTU
  • Required accessory: Interface card LWPM 410
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