Installation Instructions

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Document No. 570-135

October 26, 2016

Smoke Control Listed PRC-OAVS with

Pressurization Control by Differential

Flow Reset, with Heating by BTU

Compensation — Slow Actuation,

Floating or Analog Output

Item No. 570-135. Rev. BA Page 1 of 7

Generic Controller I/O Layout. See Wiring Diagram for application specific details.

Control Applications

6761

Product Description

These instructions explain how to field install or

replace the BACnet Pressurization Room Controller

PRC.

The PRC can operate stand-alone, with a field

panel, or as part of a network.

Product Numbers

BACnet PRC-OAVS—with

Pressurization Control by

Differential Flow Reset

Application 6761

570-811PKA

Offboard Air Module – two

required, order separately

550-819B

Shipping carton includes a controller assembly, a

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

CAUTION

Keep the unit in its static-proof bag

until installation.

Otherwise, you run the risk of

damage to the printed circuit board

from electrostatic discharge.

Ne pas retirer la carte de son

emballage avant son installion.

Autrement, une décharge

électrostatique peut endommager la

carte équipée.

Summary of content (7 pages)

PAGE 1
Installation Instructions Document No. 570-135 October 26, 2016 Smoke Control Listed PRC-OAVS with Pressurization Control by Differential Flow Reset, with Heating by BTU Compensation — Slow Actuation, Floating or Analog Output Generic Controller I/O Layout. See Wiring Diagram for application specific details. Shipping carton includes a controller assembly, a mounting rail, and two self-tapping/drilling screws.
PAGE 2
Document No. 570-135 Installation Instructions October 26, 2016 Accessories  Needle nose pliers  1/4-inch poly tubing Low cost temporary temperature 540-658P25 sensor, 10K Ω thermistor with RJ11 (1” long), that enables space control if the permanent room or duct sensor is not installed (pack of 25). Prerequisites  Wiring conforms to NEC and local codes and regulations. For further information, see the Wiring Guidelines Manual (125-3002).
PAGE 3
Document No. 570-135 Installation Instructions October 26, 2016 6. If the controller requires Offboard Air Modules, install them now following the appropriate Installation Instructions (see Product Numbers). CAUTION It is important that the neutral that supplies the TEC must be earth grounded at the source of the 24 Vac power. Possible erratic equipment operation or damage if neutral is not grounded.
PAGE 4
Document No. 570-135 Installation Instructions October 26, 2016 3. Digital Output (DO) are the only I/O authorized for smoke control applications. Digital Output (DO) Electrical Ratings: – 5 VA per DO/ maximum 40 VA total 4. The room temperature sensor (RTS) is installed in the same area as the TEC. 5. Connection from the TEC to the field panel is a maximum 4000 feet, 24 AWG minimum. 6.
PAGE 5
Document No. 570-135 Installation Instructions October 26, 2016 CAUTION Each 4-20 mA sensor requires a SEPARATE dedicated power limited 24 Vdc power supply. DO NOT use the same transformer to power both the sensor and the controller. Chaque capteur 4-20 mA nécessite un source d’alimentation SÉPARÉE limitée à 24 Vdc. NE PAS utiliser le même transformateur pour alimenter le capteur et le contrôleur.
PAGE 6
Document No. 570-135 Installation Instructions October 26, 2016 BACnet Pressurized Room Controller (PRC) – Application 6761 Wiring Diagram. Page 6 of 7 Siemens Industry, Inc.
PAGE 7
Document No. 570-135 Installation Instructions October 26, 2016 Cyber security disclaimer Products, solutions and services from Siemens include security functions to ensure the secure operation of building automation and control, fire safety, security management, and physical security systems. The security functions on these products, solutions and services are important components of a comprehensive security concept.