To Fill The Geothermal Heat Collector Circuit - SystemAir GEO 300 Bedienungsanleitung

10
| Installation
7. Insulate all pipes inside the room and wall bushing to avoid condensation.
4.2.1.3 Installation sketch
1. Geothermal heat exchanger
2. Ventilation unit
3. Condensation drainage connection
4.2.2

To fill the geothermal heat collector circuit

Warning
• Only an authorized installer/plumber is allowed to fill the geothermal heat collector circuit.
• Higher concentrations of ethylene glycol can lead to flow problems due to the viscosity of the mixture.
Concentration of more than 50% ethylene glycol will damage the system irreparably.
Note:
Fill the system with a ready-to-use ethylene glycol-water mixture. Please note the correct percentage of
the ethylene glycol!
Table 3 Required percentage of ethylene glycol in the mixture
Maximum outside
temperature [ºC]
-15
-20
-25
-30
Fill the system as follows:
1. Remove the front door.
2. Connect a filling hose with the external filling pump to the filling valve X1.
3. Connect a drain hose to the filling valve X2.
4. Put the open end of the drain hose into a bucket.
5. Open the filling valves X1 and X2.
6. Close the stopcock X0. The valve X0 is closed when the handgrip is perpendicular to the pipe.
7. Open vent X6.
4
5
6
Ethylene glycol
percentage [%]
35
40
45
50
1
2
3
4. Air release valve
5. Balance valve
6. Geothermal heat collector
GB
278349 | v01