7. Continuously top up and pump the descaler. Continue this process
until the foaming reaction had subsided. This usually takes approx. 20
to 30 minutes.
8. Then drain the condenser.
Refer to Ä Chapter 9.2 “Draining the condenser”
on page 79 for detailed information on draining the con-
denser.
9. Rinse the cooling water circuit of the device thoroughly with clean
water.
Allow a minimum of 10 liters of water to flow through the
system.
10. Reconnect the device to the cooling water supply.
7.8 Check the heat transfer liquid
Contaminated or diluted heat transfer liquid must be replaced. Continued
use of the heat transfer liquid is only permitted following successful testing.
The heat transfer liquid must be tested as outlined in DIN 51529.
V08
Variocool72 / 97
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