Air heat pump
commotherm LW-A

Power range 8 till 17 kW

The commotherm air/water heat pump is designed specially for outdoor installation. The fully galvanized, powder-coated metal housing resists every weather, and the sound insulation guarantees the quietest operation. The plant is operated with an environmental- friendly safety refrigerant. Soft start and threephase current monitoring are included as standard. A generously dimensioned evaporator unit ensures efficient and, above all, quiet operation even at the lowest outside temperatures (up to -20°C). In the so-called “silent mode”, the fan speed of the heat pump is reduced during the night hours in order to reach extremely low sound emissions. This “silent mode” is supplied as standard and can be activated manually at any time.

Active cooling – During the summer months, the heat pump can also be used for active cooling in order to create a pleasant room climate. Cooling takes place via the floor heating or a cooling ceiling.

The big advantages of the HERZ commotherm LW-A

  • Maximum efficiency in heating and domestic hot water operation
  • Plug & Heat – ready for operation and 100% tested unit
  • Low space requirement
  • User-friendly Touch-Control
  • High coefficient of performance (COP)
  • Smart Grid ready
  • Simple and quick installation
  • Monoblock – no refrigerant technician necessary
  • Different color variants from the RAL color palette possible

Standard execution:
Heat pump incl. high-efficient heating pumps, electrical heater and soft start. Furthermore, a system with a systemseperating- heat- exchanger is possible. Hot water tank, buffer and heating circuit modules are also included.

Active cooling in summer
Here, the operation of the heat pump is reversed, whereby instead of heat actively cold is generated.


User-friendly touch-controller T-CONTROL

  • Convenient menu and simple screen layout
  • Possibility for remote visualization and remote maintenance via smartphone, PC or tablet PC
  • Data transfer and software updates via USB stick
  • Possibility of Modbus-Communication

Energy efficiency class for room heating at 35°C flow temperature

commotherm LW-A
with integrated system control T-CONTROL