Contents
1 General ............................................................................................................4
1.1 About this manual.....................................................................................4
1.2 Guarantee................................................................................................4
1.3 Inspection of the unit.................................................................................4
1.4 Related documentation .............................................................................5
2 Safety...............................................................................................................6
2.1 General safety instructions ........................................................................6
2.2 Safety-related signs ..................................................................................6
2.3 Safety symbols.........................................................................................6
3 Unit overview ...................................................................................................8
3.1 Introduction of the unit...............................................................................8
3.2 Unit dimensions........................................................................................9
3.3 Type plate ..............................................................................................10
3.4 Automation options and control connections ............................................. 11
3.4.1 Vari-option ................................................................................12
3.4.2 Vari Pro-option ..........................................................................13
4 Installation of the unit.....................................................................................14
4.1 General installation instructions ...............................................................14
4.2 Choosing the installation site ...................................................................14
4.3 Removing the air duct collar ....................................................................16
4.4 Mounting the unit ....................................................................................17
4.5 Attaching the water connections ..............................................................20
4.6 Installing sewerage for condensation water...............................................21
4.6.1 Sewerage without condensation water pump...............................21
4.6.2 Sewerage with condensation water pump (option) .......................22
4.7 Attaching the electrical connections .........................................................25
4.8 Installing the external drain pan ...............................................................26
4.9 Installing the fresh air connection .............................................................27
4.10 Installing the grille...................................................................................27
4.11 Testing the condensation water pump.......................................................28
5 Operation of the unit ......................................................................................30
5.1 Controlling the unit..................................................................................30
6 Maintenance of the unit ..................................................................................31
6.1 Maintenance schedule ............................................................................31
6.2 Cleaning the grille...................................................................................31
6.3 Removing the filter..................................................................................32
6.4 Cleaning and replacing the filter...............................................................33
6.5 Opening the maintenance hatch ..............................................................34
6.6 Cleaning the condensation water basin ....................................................35
APPENDIX A: Vari-option control connections ...................................................38
APPENDIX B: Register listing for Vari Pro-option ...............................................40
APPENDIX C: Register listing for unit with Vari Pro room controller...................42
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N02119031 Rev. A GRAND Vari & Vari Pro – Installation, Operation, and Maintenance Manual
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