Hydraulics installation
24 Installation instructions geoTHERM 0020051574_04
5
5.1 Installing the direct heating mode
5.1.1 Description of functions for the direct
heating mode
The underfloor heating circuits are connected directly
to the heat pump. By default, this is controlled by an energy
balance controller (¬Ch.9.4.2).
5.1.2 Installation instructions
> Install the hydraulic components in accordance with the
local requirements and as shown in the sample hydraulic
scheme below.
> If you do not use the optional accessory heat pump brine
filling unit for heat pumps (56) (¬Fig.5.2) install the
individual hydraulic components accordingly (¬Fig.5.9).
> Connect a limit thermostat to ensure the underfloor
heating function on the heat pump.
> Connect the VF2 flow temperature sensor to ensure the
integral energy function.
> When starting up the unit, set Hydraulic Scheme No 1 in
the controller.
> Ensure that there is a minimum amount of circulating
water (approx. 30 % of the standard rated volume flow).
i
If you have installed a hydraulic switch between
the heat pump and the heating installation, VF2
the temperature sensor in the supply of the
hydraulic switch must be attached to the heating
installation.
Caution: Schematic only!
These examples of hydraulic schemes do not contain all of
the shut-off and safety instruments that are required for
correct installation.
> Observe the applicable standards and regulations.
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