LWZ 8 CS Premium Heat Recovery Ventilation System

Imagine you had three wishes, and one appliance could make them all come true.

Specs

Model - LWZ 8 CS

• Output at A7/W35 (EN 14511) - 4.4
• Sound power level (EN12102) - 57dB (A)
• Heat Recovery - Up to 90%
• Air Flow - 80 – 300 m3/h
• Storage Volume - 235L
• Weight - 420 kg
• Height - 1885mm
• Width - 1430mm
• Depth - 812mm
• Compact appliance offering the following functions: ventilation, domestic hot water, underfloor heating, and cooling
• Matrix display with "Touch Wheel" for intuitive operation
• Integral high-efficiency pump for energy saving heat distribution
• Integral domestic hot water cylinder for maximum convenience
• Ergonomically designed programming unit for easy operation

Application

Application 
Integral system with output-dependent control, with reversible air | water heat pump for central ventilation, hot water, underfloor heating and cooling in new build and detached houses. 

Convenience
Integral electronic weather-compensated control unit for output-dependent control of the heating output, DHW output, solar thermal system, cooling and ventilation. Intelligent control unit with preselected programs for fans, heating, DHW and absence/holiday. Additional functions such as humidity protection ventilation with integral humidity sensor in the extract air, airflow rate reduction when humidity is too low, passive cooling and dry heating program. Integral programming unit, remote control unit with humidity sensor optional. Internet Service Gateway (ISG) with optional KNX and PV optimisation. The refrigerant circuit of the air | water heat pump is equipped with all necessary safety equipment. Output-controlled cooling with the option of direct area cooling. Electric emergency/booster heater for heating and DHW heating. The integral DHW cylinder has a special enamel coating and is equipped with a protective magnesium anode with electronic monitoring. Highly efficient cross-counter current heat exchanger made from plastic with economical, constant flow rate fan. Outdoor air is preheated by a refrigerant circuit super cooler. An additional solar heat exchanger in the heating circuit for utilising solar thermal energy.

Efficiency
High-efficiency thanks to demand-dependent control of the inverter compressor. Energy-efficient thanks to constant flow rate fan.

Installation
The outdoor air, supply air, exhaust air and extract air connections are located at the top of the appliance. Robust sheet steel casing in a modern, award-winning design.