7_Ordinary Maintenance; Cleaning The Filter; Maintenance Of Heat Exchanger - Tecnosystemi HI-TECH PUR 4.0 User Manual

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7_ORDINARY MAINTENANCE

WARNING:
Power must be isolated before installation and maintenance to avoid injury or electricsshock. Supply power cables,
main circuit breaker and earth leakage protection, must comply with national regulations. Failure to observe could
cause unit failure, electric shock or fire.
Standard filtration is supplied with this unit and must be used. Dust and dirt can accumulate in the heat exchanger if
filters are removed. (This can lead to failure or decreased performance). To ensure efficient operation, regular cleaning
or replacement of filters is required. Filter maintenance frequency will depend on working environment and unit running
time.

7.1 CLEANING THE FILTER

1. Open the access door
2. Remove the filters (from the side of the unit)
3. Vacuum the primary filters to get rid of the dust and dirt. For bad conditions dip it
into water with soft wash to clean.
4. Push the filters to the positions after they get dried naturally, close the access door.
5. Change the F9 filters if they are badly affected with dust and dirt or if they are
broken. Note: F9 filters are not washable.

7.2 MAINTENANCE OF HEAT EXCHANGER

1. Pull off the filters first
2. Draw out the exchanger from the unit
3. Establish a cleaner schedule to clean the dust and dirt on the exchanger.
4. Install the exchanger and filters to their positions and close the access door.
Remarks: It is recommended maintenance of the exchanger is made every 3 years.
Error
OA temperature sensor error
Memory error
RA temperature sensor error
EA temperature sensor error
communication error
SA temperature sensor error
Fire alarm error
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