Maintenance By The User; Filter Maintenance - Zehnder Rittling ComfoSpot 50 Manual

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Maintenance by the user

Maintenance work on the ventilation unit is limited to filter replacement and external cleaning as required.

NOTE

If the maintenance work is not carried out regularly, this will affect the functionality of the ventilation unit in the long run,

in particular in the case of a failure to perform filter maintenance.

The ventilation unit has a runtime-controlled filter monitoring system with visual indication via the filter maintenance LED.

The filter monitoring period is 90 days as standard but can be adjusted to a period of between 30 and 180 days by the

customer service department using a programming module.

NOTE

If the air is heavily polluted (e.g. with road traffic, industrial use, in rooms with increased dust levels), change the filters

every three months.

3.3.1.1 Replacing the air filter

NOTE

The ventilation unit must not be operated without filters. During filter maintenance, the unit needs to be transferred to

the Standby operating mode.

The ventilation unit is equipped with two air filters of filter class ISO Coarse 70% as standard. Retrofitting with filters of filter

class ISO ePM10 80% is possible, preferably the higher quality ePM10 filter is inserted into the lower filter compartment

as an outdoor air filter. No tools are needed to change the air filter. Proceed as follows with the relevant filter maintenance

LED signal:

1. Put the unit into the Standby operating mode.

2. Take off the interior top cover, by disengaging the double locking connection (available on both sides) between the

bottom and top cover of the interior top cover, either on the upper or lower curve (depending on the better accessibility).

To do so, lift the relevant ends of the curved surface on the interior top cover approx. 2-3 mm upwards or downwards

(1.) and pull it out to the front and out of the guides (2.), see figure.

3. Use your finger to grasp at the side between the cellular rubber filter cap and the filter compartment opening of the

bottom cover of the interior cover and pull out the filter cap.

NOTE

Depending on where accessibility is better, first undo the upper or

lower locking connections and remove the respective top cover in

accordance with the step sequence.

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