Stulz Free-Air-3-IN, Operating Instructions Manual, Page: 5 / 31

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Free-AIr-3-IN
© STULZ SpA – all rights reserved EN/02.2018
Table of contents
1. Safety directions ...................................................................................................7
1.1. Personnel qualification and training ...................................................................................................... 7
1.2. Danger in case of failure to comply with safety instructions ......................................................... 7
1.3. Work in safety ................................................................................................................................................ 7
1.4. Maintenance, inspection and monitoring of the plant ..................................................................... 8
1.5. Independent conversion and manufacture of replacement parts ............................................... 8
1.6. Unacceptable operating methods .......................................................................................................... 8
2. Unit identification ..................................................................................................8
3. Components and operating principle ..................................................................10
3.1. Intended and non-intended use ............................................................................................................10
3.2. Component lay-out ....................................................................................................................................11
3.3. Working modes ...........................................................................................................................................13
3.4. Mechanical components ..........................................................................................................................13
3.5. Motors ............................................................................................................................................................13
3.6. Control, monitoring and safety components.....................................................................................13
4. Unpacking and inspection ...................................................................................16
4.1. Lifting and transport ..................................................................................................................................16
4.2. Storage ..........................................................................................................................................................17
4.3. Removal of packing ...................................................................................................................................17
5. Installation ...........................................................................................................17
5.1. Positioning and mechanical installation..............................................................................................18
5.2. Electrical connections ..............................................................................................................................20
6. Start-up ...............................................................................................................22
6.1. Controller setting ........................................................................................................................................22
6.2. Functional checks ......................................................................................................................................22
6.3. Other tests (facultative) ............................................................................................................................23
6.4. Shutdown ......................................................................................................................................................23
7. Maintenance ........................................................................................................24
7.1. Safety instructions .....................................................................................................................................24
7.2. Preventative maintenance schedule ...................................................................................................24
7.3. Cleaning / replacement of components ............................................................................................25
7.4. General appliance cleaning procedures .............................................................................................25
8. Information on residual hazards and emergency situations .................................26
8.1. General safety provisions ........................................................................................................................26
8.2. Hazards arising from the product coming into contact with things or persons ....................26
8.3. Hazards arising from electrical faults ..................................................................................................26
8.4. Fire hazards and toxic substances .......................................................................................................27
9. Uninstalling and disposal of the unit ...................................................................28
10. Technical data and drawings .............................................................................29