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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Operation
6.1.1.2 In- and output status
I/O status
Total overview of:
• Sensors
• I/O
• Fan control
• Temperature sequencing
• Running mode
• Device status
All can be controlled in manual mode.
• Manual setting of temperature sensor
• Locking of fans at adjustment
• Manually I/O testing of external functions
• Raw values
6.1.1.3 Energy insight
Logs and presents energy data:
• Energy usage and SFP for fans
• Recovered energy for exchanger
6.1.1.4 Temperature control
Settings for temperature.
• Limit values
• Setpoint for current control type (Example 1)
• Min/max limitation
• Outdoor temperature values
Example 1: Setpoint for current control type
Data & Settings > Temperature control > Supply air controller
2022–02–04
Supply air temperature
10.4 °C
Setpoint adjustment
0 °C
Setpoint adjustment low speed
0 °C
Setpoint adjustment high speed
0 °C
Setpoint Supply air
18 °C
Example show temperature control type set to supply air. To change the setpoint, press on the current value and
change to desired setting in the following pop-up menu. Confirm with ok. (Editable text and values are shown in blue
on NaviPad.)
214959 | A007










