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
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Maintenance
7 Maintenance
Danger
• Disconnect the mains power supply to the unit is before performing any maintenance or electrical work!
• Carry out all electrical connections in accordance with local rules and regulation. Electrical connections
must be carried out by an authorized installer.
Warning
• Be aware of rotating parts even if the mains power supply is disconnected
• Beware of sharp edges during mounting and maintenance. Use protective clothing.
• Beware of hot surface on the heating coil during maintenance and service.
7.1 Maintenance intervals
Perform maintenance according to the operation and maintenance instructions to ensure a long operation lifetime for
the unit.
A thorough and recurrent maintenance is a must for a valid guarantee.
Type of maintenance
Once a year
When necessary
Cleaning the heat exchanger.
X
Cleaning the fans.
X
Cleaning extract louvres and supply
air diffusers.
X
Cleaning the outdoor air intake.
X
Cleaning the duct system.
X
1
Replace filter X chapter 7.2
1
Or in accordance with local rules and regulations
214959 | A007