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INSTALLATION
Appliance handover
Examples:
7 °C
Δϕ1
4 °C
10 °C
Δϕ1
7 °C
Note
The groundwater station should only be commis-
sioned if there is a sufficient flow rate on the heat
source side.
Also observe the flow rate pressure drop diagrams in chapter
"Specification".
f Check that the hydraulic connection has been carried out
f
correctly.
5. Appliance handover
Make the user familiar with the appliance and hand them this
manual for safekeeping.
6. Cleaning, care and
maintenance
A damp cloth is sufficient for cleaning the casing. Never use
abrasive or solvent-based cleaning agents.
6.1
Maintenance
Note
Switch the heat pump off before carrying out main-
tenance work.
The groundwater station heat exchanger must be flushed on
the source side as required. For this, proceed as follows:
f Remove the upper shell of the insulation from the
f
groundwater station.
22 |
To open the heat exchanger, proceed as follows:
4 °C
Δϕ2
2 °C
7 °C
Δϕ2
5 °C
1 Screw cap
2 3-way ball valve with flushing facility
3 Lever
f Remove screw caps from connectors.
f
f Connect flushing unit.
f
f Turn 3-way ball valve levers forward 90°.
f
f Flush heat exchanger with a formic acid/water mixture
f
with 5 %Vol formic acid.
f Then flush heat exchanger with clean water. For this, use
f
15x the volume of the content on the heat source side.
f Turn 3-way ball valve levers 90° to the right so they are
f
back in line with the direction of flow.
f Remove flushing unit.
f
f Refit screw caps on connectors.
f
f Refit upper shell on groundwater station.
f
f Secure the upper shell to the lower shell using the clips
f
provided.
f Check that the insulation is diffusion-proof.
f
1
2
3
1
2
3
GWS
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