Wolf CFL-WRG Installation And Maintenance Instructions Manual page 20

Countercurrent plate heat
exchanger / bypass damper
Condensate pan
Image: CFL 10 / 15 / 22
Image: CFL 32
20
9. Commissioning
The countercurrent plate heat exchanger is generally maintenance-free.
During commissioning, check whether the servomotor for the bypass damper
is rotating in the correct direction (bypass/HR mode).
Provide a trap for the condensate drain and route the condensate into the
sewerage system.
Protect the condensate drain from frost.
Fill the trap with water.
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