Data Sheet for Application

Application Sheet
VAV081/VAV081_H
Supply and extract VAV with analog VAV controller, heating and
cooling coil and hot water radiator on triac output
DXR2..18-102A
7 / 8
Technical information in this document are subject to change. Drawings serve illustration purposes only.
Siemens is not responsible for content and any manual modifications.
2021-09-08
A6V10662238_en--_d_--_01
Engineering
• ABT Site engineering tool is required to configure the DXR2 automation stations.
• See the Siemens Download Center at www.siemens.com/bt/download for the latest application configuration and
workflow tutorials.
• Option combination according to available on-board I/Os on controller.
• ** In case the supply air temperature sensor (B3) is selected, the airflow feedback signal from the VAV compact
controller (YS) is required in order to allow room/supply air cascade control. In this example it is connected to X3.
• B1 (optional extract air temperature sensor) to be configured under ,Room temperature’ in order to serve for room
temperature control.
• D2
a
(on-board presence detector) to be configured in ABT Site under ‚Presence detector 2‘ for maximum
combination of optional devices. Type of operation (NO or NC). Multiple devices of the same type can be
connected.
• All DXR2 can control two radiator device and two radiant ceillings. This configuration can control only one radiator
device and one radiant ceiling device because of the limited I/O mix of the selected controller.
Management
station
Sample presentation of a VAV application on the Desigo CC management station.