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Filling water in the central heating loop
Switch off the heat and circulation pumps at the main switch.
Fill water into the central heating loop via the filler cock, Figure 5, item
13, until the correct water pressure is achieved, Figure 5, item 17
The automatic vents on the heat tank, central heating loop, etc., are
activated automatically when water is added to the system.
Add water to the system until the water pressure is correct. If the wa-
ter pressure disappears entirely during filling, filling must be restarted
right from the beginning.
Restart the heat pump at the main switch.
Dirt filters in central heating and ground source loops
Immediately after the heat pump has been commissioned, a certain amount of dirt can accumulate
in both loops. The dirt filter is located in the central heating string and in the ground pipe string out-
side the heat pump, as shown in Figure 5
The filters must be checked and cleaned several times daily after installation of the heat pump until
the filters remain clean. In normal operation of the heat pump, it should be sufficient to check the
filter twice a year.
Cleaning the dirt filters:
Switch off the heat pump at the main switch.
Close the shut-off valves on each side of the filter.
Pull out filter and rinse until clean.
Replace the filter and open the shut-off valves. Then switch on the
heat pump at the main switch.
Maintenance and Warranty
The heat pump must undergo appropriate service in accordance with applicable laws and regula-
tions in order to keep the plant maintained in good condition and to fulfill demands on safety and
environmental compliance. It is recommended that the owner / operator immediately after commis-
sioning of the facility shall consult with a qualified service technician about the scope and
frequency of servicing.
The responsibility for maintenance o
f the heat pump is for the owner’s / user’s. Geothermal circuit
containing coolant that can harm groundwater by leakage. Immediately contact a qualified service
technician by suspected leaks in your geothermal system.
The installer of heat pump is obliged to provide an assurance to the owner / operator in accord-
ance with applicable laws and regulations. For specific warranty terms refer to the owner / user
agreement with his supplier.
A prerequisite for warranty obligation is that servicing and maintenance is carried out as described.
