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APPENDIX A: LIST OF ILLUSTRATIONS
Figure 1 - VVSc and VVSs range of Air Handling Units ............................................................................................................ 3
Figure 2 - VVSc - location of the terminal box ........................................................................................................................... 5
Figure 3 - VVSs - location of the terminal box ........................................................................................................................... 5
Figure 4 - Required control elements for key air treatment functions ........................................................................................ 6
Figure 5 - Auxiliary Control Elements ........................................................................................................................................ 7
Figure 6 - Supply air temperature ducted sensor correct installation ........................................................................................ 7
Figure 7 - Connection of the ducted temperature sensor. T1 port ............................................................................................. 7
Figure 8 - Fire alarm signal connections / permanent bridge. Ports: Fire al. ............................................................................. 8
Figure 9 - Connection of the Air Damper Actuator to the switchboard; Ports: Dampers G, Dampers G0, D02 ......................... 8
Figure 10 - Connection of the antifreeze thermostat on the air side; Port: Heater al. G0, DI2 .................................................. 9
Figure 11 - installation and connection of the return water strap-on temperature sensor; T .heater port .................................. 9
Figure 12 - Connection of the 3-way valve (part of the pump group) supply and control signal; Heating port ........................ 10
Figure 13 - Connection of the water heater recirculation pump to the power supply source ................................................... 10
Figure 14 - Electric heater connections ................................................................................................................................... 11
Figure 15 - Permanent bridge on Heater al. terminals (G0, DI2)............................................................................................. 12
Figure 16 - Connection of the water cooler 3-way valve. Port Cooling .................................................................................... 12
Figure 17 - HMI Advanced port ............................................................................................................................................... 13
Figure 18 - Installation of the HMI Basic interface ................................................................................................................... 13
Figure 19 - Connection of HMI Basic ...................................................................................................................................... 13
Figure 20 - Cooling medium source failure status binary signal .............................................................................................. 14
Figure 21 - 0-10 V analog signal output for DX compressor
– cooling mode only................................................................... 14
Figure 22 - DX compressor failure status binary signal ........................................................................................................... 15
Figure 23 - 2 stages start permission binary signals output for DX compressor ..................................................................... 15
Figure 24 - 0-10 V analog signal output for DX compressor - cooling and heating mode ....................................................... 16
Figure 25 - Binary control signals for cooling and heating mode............................................................................................. 16
Figure 26 - Heating/Cooling mode information binary signal output........................................................................................ 17
Figure 27 - VVSc Floor mounted Compact Air Handling Unit - connection to mains, 3x400V AC........................................... 18
Figure 28 - VVSs Ceiling Suspended Compact Air Handling Unit - connection to mains, 1x230V AC .................................... 18
Figure 29 - Main power switch of the Air Handling Unit .......................................................................................................... 19
Figure 30 - HMI Basic interface. Off mode .............................................................................................................................. 19
Figure 31 - Air Handling Unit in On mode ............................................................................................................................... 19
Figure 32 - Toggling between fan speed in manual mode ...................................................................................................... 20
Figure 33 - HMI Basic. Temperature set-point ........................................................................................................................ 20
Figure 34 - HMI Advanced interface ....................................................................................................................................... 20
Figure 35 - Active operational mode ....................................................................................................................................... 21
Figure 36 - HMI Advanced: Toggling between operational mode ........................................................................................... 21
Figure 37 - Entering air temperatures settings ........................................................................................................................ 21
Figure 38 - Air temperature settings for each mode ................................................................................................................ 22