Assortment / System Description

Ceiling heating/chilled ceiling application
2-pipe chilled beams
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16 Ceiling heating/chilled ceiling application
All DXR2 application types include a passive heated/chilled beam application.
As a rule, each DXR2 can control 2 passive heated/chilled beams via Triac or
analog outputs. The controller operating mode modulating or 2-point can be
configured for passive heated/chilled beams,
The DXR2 application can control passive chilled beams in a 2-pipe system,
heated-chilled beams in a 2-pipe system or heated/chilled beams in a 4-pipe
system.
16.1 2-pipe chilled beams
Figure: Example for a chilled beam application 2-pipe system
Key:
DXR2… Automation Station R1 Room operator unit
Rcg Chilled beam valve D1 Presence
CdnMon Condensation monitor D2 Window contact
Y Output signal TR Room temperature
SpH Effective heating setpoint SpC Effective cooling setpoint
YC Cooling valve
Figure: Modulating cooling sequence
Plant diagram
Sequences