2 - EN
EN - 3
Contents
Foreword .....................................................................................................................................................................................2
1
Safety instructions ........................................................................................................................................................................4
2
Service procedures ......................................................................................................................................................................5
2.1 Overview of the display .........................................................................................................................................................5
2.2 Service menu .......................................................................................................................................................................6
2.3 Explanation of the SERVICE MODE menu ..............................................................................................................................7
2.4 Programming air specifications ..............................................................................................................................................8
2.5 RF controls ...........................................................................................................................................................................9
2.6 Explanation of VENTILATION SETTINGS menu .....................................................................................................................10
2.7 Explanation of REPLACE FILTER warning .............................................................................................................................10
2.8 Explanation of ALTITUDE menu ............................................................................................................................................10
2.9 Explanation of TEMPERATURE menu ..................................................................................................................................10
2.10 Explanation of FANS menu ..................................................................................................................................................10
2.11 Explanation of UNIT SPECIFICATION menu .........................................................................................................................11
2.12 Explanation of the BALANCE SETTING menu .......................................................................................................................11
2.13 Explanation of ANALOGUE 0-10 V menu (standard) and RF SETTING (optional) ....................................................................11
2.14 Explanation of the PREHEATER menu .................................................................................................................................11
2.15 Explanation of the SYSTEM TEST menu ..............................................................................................................................12
2.16 Explanation of RESTORE TO FACTORY SETTINGS menu ....................................................................................................12
2.17 Explanation of control methods ............................................................................................................................................12
3
Technical specifications...............................................................................................................................................................14
3.1 Service parts ......................................................................................................................................................................16
3.2 Connection diagram ...........................................................................................................................................................17
3.3 Dimension sketch ...............................................................................................................................................................19
4
Maintenance procedures ............................................................................................................................................................20
4.1 Procedure for opening the unit ............................................................................................................................................20
4.2 Maintenance of the casing ..................................................................................................................................................21
4.3 Maintenance of the heat exchanger .....................................................................................................................................21
4.4 Maintenance of the bypass flaps .........................................................................................................................................22
4.5 Maintenance of the fans ......................................................................................................................................................23
4.6 Maintenance of the preheater ..............................................................................................................................................24
4.7 Maintenance of the condensation drain: ..............................................................................................................................25
4.8 Maintenance of the air ducts ...............................................................................................................................................25
4.9 Procedure for completing maintenance ................................................................................................................................25
5
Malfunction procedures ..............................................................................................................................................................26
5.1 Malfunction alerts on the display of the unit ..........................................................................................................................26
5.2 Access to the control PCB ..................................................................................................................................................27
5.3 Changing the installation position of the preheater ...............................................................................................................27
5.4 Access to the T11/T20 sensor ............................................................................................................................................28
5.5 Access to the T12/T21/T22 sensor .....................................................................................................................................29
5.6 Resetting errors ..................................................................................................................................................................29
5.7 Carrying out a system test ...................................................................................................................................................29
5.8 What to do if a malfunction alert occurs (problem solving) .....................................................................................................30
5.9 What to do if a malfunction (or problem) occurs without error alert (problem solving) ...............................................................35
10001047667-0619-zw-zw-A4 ComfoAir E 350 GEN2 Service Zehnder-SI_EN.indd 3
11-07-19 13:30
