LA 18S-TU

LA 18S-TU

LA 18S-TU

High efficiency air-to-water heat pump for outdoor installation 18 kW heat output.

Lots of power under the hood.

With a heat output of 18 kW, the LA 18S-TU is a really powerful package, yet also extremely quiet during operation. The highly efficient air-to-water heat pump is ideal for large, newly built single family homes and renovation projects with a heated living area of up to 400 sqm. The universal design offers flexible expansion options such as domestic hot water preparation, different heat distribution systems or the connection of oil or gas boilers. It is also extremely compact and enables installation at a distance of just 50 cm from the wall.

  • Naturally quiet. Noise-optimised owls' wing fan. Encapsulated compressor chamber and free swinging compressor base plate for solid-borne sound insulation.
  • Power-regulated. Two compressor settings for optimal adjustment of the heat output to the building consumption.
  • Low operating costs. High seasonal performance factors thanks to electronic expansion valve and high-performance evaporator.
  • Minimal space requirement thanks to installation close to walls and compact dimensions – minimum clearance from the wall on the intake side 50 cm.
  • Individual design. Select your chosen colour from 1,625 RAL shades.
  • Reliable. Operational reliability via sensor monitoring of the refrigeration circuit with demand-based defrosting. Integrated thermal energy metering
  • Easy to install. In cases of installation close to a wall in buildings which do not have a cellar, the pipework can be guided directly inside. Hydraulic connection of the heat pump optionally possible at the side or at the bottom.
  • Flexible expansion options. Bivalent or bivalent-renewable operation, distribution systems with mixed and unmixed heating circuits (e.g. underfloor heating and radiators). Even more efficient room temperature control Smart-RTC+.
  • Future-orientated. Use of load-variable tariffs or self-produced PV-electricity possible: SmartGrid Ready.

Technical Data.

Energy efficiency class with 35 °C flow temperature: A++


Energy efficiency class with 55 °C flow temperature: A++


Lower operating limit heat source (heating operation): -22 Grad


Upper operating limit heat source (heating operation): 35 Grad


Max. flow temperature: 60 Grad


Sound pressure level in 10 m: 26 dB(A)


Sound pressure level in 10 m (lowered operation): 25 dB(A)


Sound pressure level in 1 m: 52 dB(A)


Width: 910 mm


Height: 1650 mm


Depth: 750 mm


Weight: 295 kg


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