User Manual

Application Sheet CEN003
Central function HVAC supply, lighting and blinds operation
DXR2..18-
101A
DXR2..18-
102A
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Technical information in this document are subject to change. Drawings serve illustration purposes only.
Siemens is not responsible for content and any manual modifications.
2019-02-21
A6V10662238_en--_c_--_07
∂ Collection and preparing HVAC supply and demand signals as BACnet data points for:
o 2 x groups for chilled water supply
o 2 x groups for hot water supply
o 1 x group for demand-controlled air supply
∂ Room operating mode control for 4 groups via digital input
∂ Manual central operation of facades via KNX PL-Link button
∂ Manual central operation of lighting via KNX PL-Link button
Plant diagram
DXR2.E18 Automation station for HVAC AS Automation station in the room
supply chain D3, D4, D5, D6 Digital signals for room operating mode
R3, R4 KNX PL-Link button for central PX Automation station for
switching/dimming of luminaires and supply plants (Siemens PX or
facade control BACnet third-party device)
Function diagrams Supply chain chilled water
CdnPrev11 Condensation prevention 11 FreeCTChw Free cooling temperature chilled water
Chovr2Pipe11 Changeover function for 2-pipe 11 HVAC HVAC room function
CHwTOa Supply chain chilled water outside PXC {CGen10} Primary application cooling 10
temperature PXC{CGrp86} Primary application cooling group 86
CReq Cooling request SpCReq Setpoint for cooling request
FreeC11 Free cooling 11 SplyChw11 Supply chain chilled water 11
FreeCAvl Free cooling available TOa Outside temperature