Zehnder Rittling ComfoAir 70 Operating Manual And Assembly page 26

5. Now you can lift the upper part of the EPP-casing upwards. Ensure that the possibly assembled air
ducts for the two-room connection are thereby not damaged.
6. The enthalpy exchanger cannot be pulled upwards.
7. Clean the enthalpy exchanger if required.
In order to do so, proceed as follows:
• For this immerse the enthalpy exchanger few times in warm water (max. 40 ° C).
• Rinse the enthalpy exchanger in the end basically with warm duct water (max. 40 ° C).
As a general rule, do not use any aggressive or dissolvent detergents!
• Position the enthalpy exchanger for drying such that the available residual water can flow from the
opening.
Hints for proper cleaning can also be found at the manufacturer's website
lueftung.de).
8. After inspection, mount all parts in reverse order.
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