The Zehnder ComfoFond-L Q brine-earth heat exchanger has been developed for use in conjunction with the Zehnder ComfoAir Q350/450/600 comfort ventilation units. It combines the highest comfort with very high efficiency in a compact installation. In winter, when the outdoor temperatures are low, it pre-heats the outdoor air to prevent freezing.
This ensures optimum operation of the ComfoAir Q ventilation unit, even at outdoor temperatures below freezing. In summer, the ComfoFond-L Q sub-soil heat exchanger lowers the temperature of the outdoor air, and helps to support a conventional air-conditioning system.
Energy saving due to use of renewable energy from the ground
Maximum comfort due to pre-heating of outdoor air in winter using geothermal energy and temperature control of outdoor air in summer and winter for a comfortable indoor climate
Compact, quick installation directly adjacent to the ventilation unit
Simple and sustainable use of geothermal energy with a low power consumption
Brine pump with energy efficiency class A
Balanced ventilation even with low outside temperatures
■ Brine pump energy efficiency A rated
■ Safety valve: 3 bar
■ Automatic air vent
■ Filling and flushing system
■ Expansion vessel: 2 litres
■ Manometer: 0 to 10 bar
■ Connection pipe of pump and temperature sensor
■ DN 20 external thread connections for the brine pipes
Zehnder ComfoFond-L Q brine-earth heat exchanger suitable
for ComfoAir Q350/450/600 comfort ventilation units.
In winter, the ComfoFond-L Q preheats the outdoor air before it
enters the ventilation unit; in summer, it cools and dehumidifies
the outdoor air.