NT 1963 E – 07/2020 _______________________________________________________________ 33
TABLE OF CONTENTS:
1. General information .............................................................................................................. 34
1.1. Before you start ............................................................................................................................. 34
1.2. Product acceptance ....................................................................................................................... 34
1.3. Product description ....................................................................................................................... 34
2. Safety information ................................................................................................................. 34
3. Specifications ......................................................................................................................... 34
3.1. Exploded view ............................................................................................................................... 35
3.2. Dimensional specifications ............................................................................................................ 36
3.3. Electrical specifications ................................................................................................................. 40
4. Installation ............................................................................................................................ 41
4.1. Handling and mounting the product ............................................................................................. 41
4.2. Positioning ..................................................................................................................................... 41
4.3. Air flow connections ...................................................................................................................... 41
4.4. Rectangular damper connections ................................................................................................. 41
4.5. Connection the condensate evacuation (changeover module) .................................................... 42
4.6. Installing the roof (mandatory for outdoor installations) ............................................................. 42
4.7. Limiting noise disturbance ............................................................................................................ 43
4.8. Malfunction detection ................................................................................................................... 43
4.9. Adding modules and configuring the take-offs ............................................................................. 44
5. Electrical connections ............................................................................................................ 48
5.1. General information ...................................................................................................................... 48
5.2. Motor diagrams ............................................................................................................................. 49
5.3. Electric heaters .............................................................................................................................. 49
5.4. Control board ................................................................................................................................ 53
6. System start-up ..................................................................................................................... 54
6.1. General information ...................................................................................................................... 54
6.2. Control system configuration ........................................................................................................ 54
6.3. ECM version without control system ............................................................................................ 55
6.4. Controlled version: ........................................................................................................................ 55
7. Transport ............................................................................................................................... 56
8. Maintenance ......................................................................................................................... 56
8.1. Replacing the fan ........................................................................................................................... 56
8.2. Fan unit cleaning intervals............................................................................................................. 58
9. Warranty ............................................................................................................................... 58
10. Product end-of-life ................................................................................................................. 58
Appendix: Faults reported via output K1 ....................................................................................... 59
