OPERATION AND MAINTENANCE INSTRUCTION TOPVEX SR TR 254051A003
Table Of Contents
- 1 Overview
- 2 Warnings
- 3 Warnings signs on product
- 4 Product description
- 5 Internal components position
- 6 Start up
- 7 Operation
- 8 Maintenance
- 8.1 Maintenance intervals
- 8.2 How to replace supply/extract air filter
- 8.3 How to clean NaviPad
- 8.4 How to clean the heat exchanger
- 8.5 Control of the heat exchanger
- 8.6 How to clean fans
- 8.7 How to clean hot water heating coil
- 8.8 How to clean electric heating coil
- 8.9 How to clean the extract air louvres and inlet diffusers
- 8.10 Clean the outdoor air intake
- 8.11 How to clean the duct system
- 8.12 Where to reset tripped fuses
- 8.13 How to reset the manual overheat protection (EL units)
- 8.14 How to replace the fan module
- 8.15 How to replace the heat exchanger
- 8.16 Change the internal battery in control unit CU27–C
- 9 Troubleshooting
- 10 Alarms
- 11 Service
- 12 General conditions
Maintenance
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8.16 Change the internal battery in control unit CU27–C
The alarm text Internal battery error is shown in NaviPad when it is time to change the battery. Expected life
time of battery is 5 years.
Caution
ESD protection; i.e. an earthed wristband must be used!
Note:
Note the cable connectors positions before disconnecting them.
Disconnect all the wired cable connectors (1) from control unit CU27–C. Push CU27–C slightly in the direction of the ar-
row (2), lift the opposite side up (3), figure 11.
Fig. 11
Release each of the 6 locking clips (1), figure 12 to open CU27–C.
Replacement battery is of type CR2032, observe the correct polarity.
Fig. 12
254051 | A003