Installation Instructions

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Document No. 550-150

July 25, 2014

Smoke Control BACnet PTEC VAV with

Chilled Beam, Demand Control

Ventilation (CO2) and Floating or

Analog Output Controller

Item No. 550-150 Rev. AA Page 1 of 6

Generic Controller I/O Layout. See

Wiring Diagram

for application specific details.

Control Applications

6659

Product Description

These instructions explain how to field install or

replace a Siemens VAV Chilled Beam with Demand

Control Ventilation (CO2) and Floating or Analog

Output Controller.

Product Numbers

Smoke Control Listed Siemens

VAV Chilled Beam with Demand

550-494PKA

Control Ventilation (CO2) and

Floating or Analog Output

Controller

Shipping cartons includes a controller assembly, a

mounting rail, and two self-tapping/drilling screws.

Summary of content (6 pages)

PAGE 1
Installation Instructions Document No. 550-150 July 25, 2014 Smoke Control BACnet PTEC VAV with Chilled Beam, Demand Control Ventilation (CO2) and Floating or Analog Output Controller Generic Controller I/O Layout. See Wiring Diagram for application specific details. Control Ventilation (CO2) and Floating or Analog Output Controller Control Applications 6659 Shipping cartons includes a controller assembly, a mounting rail, and two self-tapping/drilling screws.
PAGE 2
Document No. 550-150 Installation Instructions July 25, 2014 CAUTION NOTE: For smoke control application, primary rating is only 120V/60 Hz. Keep the unit in its staticproof bag until installation. Otherwise you run the risk of damage to the PCA from electrostatic discharge. Warning/Caution Notation WARNING Personal injury/loss of life may occur if you do not follow the procedures as specified. CAUTION Equipment damage or loss of data may occur if you do not follow the procedures as specified.
PAGE 3
Document No. 550-150 Installation Instructions July 25, 2014 NOTE: If the controller is being installed on a box with 1 or more stages of electric heat, the 550-809 MOV with preterminated spade connectors must be installed across the manufacturersupplied airflow switch. MOVs can be installed at the time the controller is factory mounted; coordinate with the box manufacturer prior to order placement. For field installation, see Metal Oxide Varistor Kit Installation Instructions (540-986).
PAGE 4
Document No. 550-150 Installation Instructions July 25, 2014  Connect the tubing from the air velocity sensor pickup to the ports on the controller. Connect HI to HI and LO to LO. The installation is complete. All circuits are power limited; FLN (NETWORK) is RS-485, RTS (STAT) is RS-232.
PAGE 5
Document No. 550-150 Installation Instructions July 25, 2014 NOTE: If the voltage/current switch is set to current and a 4 to 20 mA sensor is connected to an AI, then special wiring requirements must be followed. Figure 1: Wiring for AI with a 4 to 20 mA Sensor. Siemens Industry, Inc.
PAGE 6
Document No. 550-150 Installation Instructions July 25, 2014 Application 6659 - Wiring Diagram. Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. © 2014 Siemens Industry, Inc. Siemens Industry, Inc. Your feedback is important to us.