Operation and Maintenance Instructions
Table Of Contents
- 1 Overview
- 2 Warnings
- 3 Warnings signs on product
- 4 Product description
- 5 Start up
- 6 Operation
- 7 Maintenance
- 7.1 Maintenance intervals
- 7.2 How to replace supply/extract air filter
- 7.3 How to clean NaviPad
- 7.4 How to clean the heat exchanger
- 7.5 How to clean the fans
- 7.6 How to clean hot water heating coil
- 7.7 How to clean the electric heating coil
- 7.8 How to clean the extract air louvres and inlet diffusers
- 7.9 Clean the outdoor air intake
- 7.10 How to clean the duct system
- 7.11 Where to reset tripped fuses
- 7.12 How to reset the manual overheat protection (EL units)
- 7.13 How to replace the fan module
- 7.14 How to replace the heat exchanger
- 7.15 Change the internal battery in control unit CU27–C
- 8 Troubleshooting
- 9 Alarms
- 10 Service
- 11 General conditions
- 12 Spare parts
Maintenance
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7.2 How to replace supply/extract air filter
The bag filter must be changed when necessary, they cannot be cleaned. We recommend ordering original filters from
Systemair. Operation time between filter changes depends on the air quality. A differential pressure transmitter indi-
cates when it is time to change the filters, which will trigger an alarm in NaviPad.
1. Pull out the old filters and replace with new ones.
2. In NaviPad, log in as operator; 1111 (min. level).
3. Press on the alarm symbol
on the control panel.
4. Choose Filter alarm and press acknowledge.
7.3 How to clean NaviPad
Disconnect the NaviPad power cord. Wipe the NaviPad gently with a soft cloth. Remove resistant marks with mild de-
tergent (intended for touch screens) on the cloth, gently wipe the screen. Do not use other cleaning agents (they may
contain ammonia or other additives).
7.4 How to clean the heat exchanger
Caution
• Do not use detergent containing ammonia
• The heat exchanger is sensitive for impacts. Handle the heat exchanger carefully.
Clean the heat exchanger with hot soapy water. It is also possible to use pressure air, but not with too high pressure.
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