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

Heating and cooling over an extra-large area.

For people who need lots of space and power, the high-efficiency LA 18S-TU is also available as a reversible air-to-water heat pump with 18 kW heat output. This package is ideal for large, newly built single family homes or those requiring renovation with a heated living area of up to 400 sqm.

  • 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.
  • Regulated cooling. Reversible heat pump for heating and cooling. Prepared for dynamic cooling (fan convection) and silent cooling (floor/wall/ceiling areas). Intelligent dew point regulation via the heat pump manager (e.g. with Smart-RTC+).
  • 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+++

Cooling capacity A27/W18: 8,2 kW

EER A27/W18: 4,4

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

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

Lower operating limit heat source (cooling operation): 15 Grad

Upper operating limit heat source (cooling operation): 45 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)

Width: 910 mm

Height: 1650 mm

Depth: 750 mm

Weight: 295 kg

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