Maintenance
48
10.3 Draining off the medium / Refilling the cooler with medium
Draining the medium:
1.
Switch the device off and disconnect the power supply cable.
2.
Keep a suitable collecting vessel ready for collecting the medium.
3.
Disconnect the connectors (feed flow, return flow).
4.
Drain the medium off via the drain hose.
5.
Remove the plug from the filler neck.
6.
Wait until no more water flows out of the device.
7.
If included, open and drain the filter cup in the filter. See the section
"
Maintenance/Filter change
".
The filter cup must be at least half empty in order to avoid damage due to
freezing water.
8.
Remove any residual medium by suction via the connection points of the
device (e.g. with a wet vacuum cleaner).
NOTICE
Risk of damage to the components!
There is a risk of damage to the components if compressed air (pressure higher
than 1 bar (14.5 psi)) is used to blow out the device.
•
Blow the liquid into the tank with compressed air (pressure below 1 bar
(14.5 psi)) via the medium connections (inlet, outlet) and drain it off via the
drain (e.g. by way of a draining hose or via a draining connector).
•
When blowing in the compressed air, ensure that the filling plug of the tank
is open.
•
Damage to the unit caused by pressure surges are excluded from the
warranty.
9.
Seal the drainage point (discharge opening) under the device.
10.
Dispose of the medium in accordance with the applicable national and local
guidelines and regulations and in an environmentally sound manner.
Filling / Refilling:
NOTE
•
For filling / refilling, please refer to the description in the "Commissioning /
Filling" section.
•
Only use the cooling medium that is specified in the "Technical data"
section.
