Data Sheet for Product

Technical Specification Sheet
Document No. 149-860
February 18, 2015
Siemens Industry, Inc. Page 1 of 4
BACnet PTEC Dual Duct 2 AVS Controller
The BACnet PTEC Dual Duct 2 AVS Controller is an
integral part of BACnet network. The controller
provides high performance Direct Digital Control
(DDC) technology for room temperature control in
Dual Duct Variable Air Volume (VAV) systems or air
volume setpoints and room temperature control in
Constant Volume (CV) systems. The DDC and related
components provide a totally electronic control
system.
The BACnet PTEC Dual Duct 2 AVS Controller can
operate stand-alone or can be networked to perform
complex HVAC control, monitoring and energy
management functions and is designed to reside on
any BACnet control system.
Features
 Communicates using BACnet MS/TP protocol for
open communications on BACnet MS/TP
networks.
 BTL listed as a B-ASC device.
 Auto-discovery and Auto-addressing over entire
MS/TP network.
 Programmable using PPCL.
 Setpoints and control parameters assigned and
changed locally or remotely.
 Setpoints and control parameters stored in
Electrically Erasable Programmable Read Only
Memory (EEPROM)—no battery backup required.
 Returns from power failure without operator
intervention.
 No calibration required, thereby reducing
maintenance costs.
 Advanced digital room unit for temperature, CO
2
,
and humidity.
 Supports analog or digital room units with either
absolute or warmer-cooler setpoint adjustments.
 Applications in 550-497PA include a user-
adjustable temperature offset for the room
temperature reading when required for validation
purposes.
 PID control of HVAC systems to minimize offset
and maintain tighter setpoint control.
 Unique control algorithms for specific applications.
 Plenum rated controller.
 Separate air volume setpoints for occupied and
unoccupied modes (CV Applications only).
 Uses proven DDC architecture.
Applications
 Constant Volume - Two Inlet Sensors with
Optional Reheat (Application 6665)
 Constant Volume - One Inlet and One Outlet
Sensor with Optional Reheat (Application 6666)
 Variable Air Volume – Two Inlet Sensors with
Optional Reheat (Application 6667)
 Variable Air Volume – One Inlet and One Outlet
Sensor with Optional Reheat (Application 6668)
 Variable Air Volume with Changeover (Application
6669)
 Slave Mode (Application 6693)