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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7.13 How to replace the fan module
When ordering a replacement fan module, note if it is supply or extract fan. This is important for the fan to get the cor-
rect Modbus address.
For size Topvex SC35 the door beam has to be removed, figure 10.
1. Disconnect the fast coupling to the electric wire
2. Disconnect the blue and red tubes from the supply air fan (standard units with CAV). Blue tube is connected to the
cone (1) of the fan, the red tube is connected to measuring nipple on the wall or on the sheet metal on the suction
side.
3. Loosen the bolts on the rails on each side of the fan to remove the fan.
4. Put the new fan in place and connect the electric wire and tubes.
5. Fasten the fan with the rails and bolts.
214959 | A007