Daikin Altherma
For contractors:

Control customized to your customer
The water temperature changes in function with the outside temperature so that your customer can enjoy a stable level of heating at any time. As the installer, you set up the system according to the desires of your customer. You input four temperatures to determine the “heating curve” and in doing so, you perfectly tune the Daikin Altherma system to the type of home.

Automatic re-start after power interruption
In the event of a power interruption of up to two hours, the system automatically resumes with the previously set parameters.

Quiet operation
The outdoor unit makes hardly any noise thereby leaving your customer’s (and the neighbor’s) peace and quiet undisturbed. You can even set the outdoor unit to produce 10dB(A) less noise during the night.

Electric back-up heating
Every Daikin Altherma system is equipped with a backup heater (heating capacity of 3 or 6 kW). This unit can be used for supplemental heating during extremely cold outdoor temperatures or as a back-up in case of any problems with the outdoor unit. Your customer can then enjoy comfortable heating at any moment. The operation of the back-up heater can be coupled to the outside temperature. The back-up heater will then only operate when outside temperatures are extremely low.

Weather-dependent setpoint (outdoor reset)
When the weather-dependent setpoint functionality is enabled, the setpoint for the leaving water temperature will be dependent upon the outside ambient temperature. At low outside ambient temperatures, the leaving water temperature increases to satisfy the increasing heating requirement of the building. At warmer temperatures, the leaving water temperature decreases to save energy.

The weather dependent setpoint or sometimes called outdoor reset is when Daikin Altherma control senses outside temperature and readjust the heating system water to a minimum water temperature to satisfy the heat loss of the home. This accomplishes two major things: one it will save energy and second it creates more comfort by eliminating short cycling of Daikin Altherma at mild outdoor temperatures. During weather dependent operation, the user has the option to shift up or down the target water temperature by a maximum of 9°F (5°C).


click on image to expand


The floating setpoint ensures the heat emitter temperature is never higher than necessary and this leads to the highest possible comfort level. A heat pump requires more energy input the higher the water temperature, meaning the floating setpoint also ensures the lowest possible energy consumption.

For end users:

Less energy, pleasant warmth in the home Daikin Altherma heats up to 5 times more efficiently than a traditional heating system based on fossil fuels or electricity. By making use of the heat in the outside air, you use much less energy while still enjoying a stable and pleasant level of comfort. Daikin Altherma provides energy efficient, eco-friendlier heating.

Minimal installation cost
Daikin Altherma takes heat from the air. No digging or excavation works are required. Both the outdoor and indoor units are compact. The external unit can be located easily outside any building, including apartments. Without flames or fumes, there is no need for a chimney or constant ventilation in the room where the Daikin Altherma’s indoor unit is installed.

Flexible configurations
Daikin Altherma can be configured for use in both new and refurbishment applications, and connects to standard low temperature radiators, underfloor heating or fan coil units. If you already have a heating system, there is no need to change it all.

Entire comfort for your family
Daikin Altherma satisfies your heating requirements but it can also supply your sanitary hot water. It comes with a cooling option for hot summer days.

Environmental Comfort
Daikin Altherma works without oil, gas or other hazardous substances – reducing potential risk that goes together. Moreover, you don’t need a gas connection or a fuel tank. No risk of intoxication, smell or pollution from leaking tanks.