Data Sheet for Product

Technical Specification Sheet
Document No. 149-834
September 24, 2014
Siemens Industry, Inc. Page 1 of 6
Siemens BACnet Programmable TEC—VAV
with Series Fan and 3-Stage Electric Heat
The Siemens BACnet PTEC VAV with Series Fan and
3-Stage Electric Heat provides high performance
Direct Digital Control (DDC) of pressure-independent,
variable-air-volume zone-level routines. The Siemens
BACnet PTEC VAV with Series Fan and 3-Stage
Electric Heat 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.
 Programmable using PPCL.
 Plenum rated controller.
 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.
 PID control of HVAC systems to minimize offset
and maintain tighter setpoint control.
 Unique control algorithms for specific applications.
 Reports airflow in cfm (lps).
 Meets low duct static pressure requirements.
 Separate minimum and maximum air volume
setting for heating and cooling modes.
 Applications in 550-492P include a user-
adjustable temperature offset for the room
temperature reading when required for validation
purposes.
Applications
 Slave Mode (Application 6599)
 VAV Series Fan (Application 6557) Powered with
Electric Reheat
Control algorithms are preprogrammed. The controller
is ready to operate after selecting the application. If
desired, the operator may adjust the air volume
setpoints in cfm (lps), room temperature setpoints and
other parameters. The controller is designed for
operation and modification without vendor assistance.
If required, new custom code using our PPCL
programming language can be added to replace or
supplement the standard application residing in the
controller. This provides the flexibility to meet many