2 Technical User´s Guide
DA 50-920
CONTENTS
1 PRODUCT DESCRIPTION 4
2 MOUNTING GUIDE 5
2.1 Introduction to the Mounting .............................................................................. 5
2.1.1 The Appendixes are divided as follows: .......................................................................... 5
2.2 Placement in the House ...................................................................................... 5
2.2.1 Examples of Placement in the House .............................................................................. 6
2.3 General Mounting ................................................................................................ 7
2.3.1 General Drawings ............................................................................................................. 7
2.3.2 Assembling of Ducts.......................................................................................................... 9
2.3.3 Assembling of several Lengths of Duct ........................................................................... 9
2.3.4 Assembling of Duct and Funnel Tube ........................................................................... 10
2.3.5 Mounting of Supporting Ring (433487) on Duct .......................................................... 10
2.3.6 Roof Flashing with Neoprene Cloth .............................................................................. 11
2.3.7 Roof Flashing with Roofing Felt .................................................................................... 12
2.3.8 Mounting of Bell Mouth on Duct ................................................................................... 13
2.3.9 Mounting of Net on Bell Mouth ..................................................................................... 13
2.3.10 Mounting of Rain Screen on Net ................................................................................... 14
2.3.11 Mounting of Roof Cap on Net ........................................................................................ 14
2.3.12 Fastening of Mounting Fitting (433491) on Duct ......................................................... 14
2.3.13 Mounting of Adjustment Fitting with Spring on the Bottom Plate ............................ 15
2.3.14 Mounting of Intermediate Plate (optional equipment) and Bottom Plate ................. 15
2.3.15 Mounting of Recirculation Fan (optional equipment) ................................................. 16
2.3.16 Measuring and Mounting of Pull Rod .......................................................................... 17
2.3.17 Mounting of Suspension ................................................................................................. 18
2.3.18 Fastening of Air Supply Unit to Pull Rod ..................................................................... 18
2.4 Adjustment of DA 50-920 Air Supply Unit ....................................................... 19
3 INSTALLATION GUIDE 20
3.1 Cable Chart for Recirculation Fan .................................................................... 20
3.2 Wiring Diagram for Recirculation Fan ............................................................. 21
3.3 Diagram for Rotating Direction of the Recirculation Fan ............................... 22
4 EC DECLARATION OF CONFORMITY 22
5 USER’S GUIDE 23
5.1 Cleaning .............................................................................................................. 23
5.1.1 Dismantle Bottom Plate and Intermediate Plate for Cleaning ................................... 23
6 MAINTENANCE INSTRUCTIONS 23
6.1 Instructions for taking down the Unit and Recycling ..................................... 23
7 TROUBLE SHOOTING INSTRUCTIONS 24
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