Wolf CRL-iD-1300 Installation And Maintenance Instructions Manual page 40

Servomotors on the dampers
Condensate pan
Trap
40
19. Maintenance
The motors are maintenance-free.
At regular intervals, check that the connection from the servomotor to the
damper drive is firmly seated.
Regularly check the condensate pan for possible soiling and clean if required
(see checklist).
Regularly check the DN 50 trap (accessory) for possible soiling and clean if
required. (see checklist).
Refill the trap with water before returning into use.
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