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BACnet Lab and Pressurized Room Controllers with Off-board Air Modules

Technical Specification Sheet

Document No. 149-855

November 04, 2015

Siemens Industry, Inc.

Page 1 of 6

BACnet Lab and Pressurized Room

Controllers with Off-board Air Modules

Lab Controller Module.

Off-board Air Module 550-819B.

The Laboratory Control Modules (LCMs) and

Pressurized Room Controllers (PRCs) have been

updated to share the same hardware and enhanced

applications on the new PTEC hardware platform.

These controllers use the Off-board Air Module

(OAM) to measure airflow for standard and custom

pressurized room control applications.

These controllers are designed to reside on any

BACnet control system.

NOTE:

The 570-8

PA BACnet laboratory

controllers have new 67xx application

numbers. New application numbers may

require front-end graphics and reporting

modifications. Upgrading to the new

controllers might, in some rare

instances, cause some programming

rework.

Lab Controller Module

The LCM operates as an independent, stand-alone

DDC controller and can be connected on the Floor

Level Network (FLN). The LCM includes the largest

physical point count of any FLN device. Not all

physical points are used in all applications.

Off-board Air Module

The OAM contains the air velocity sensor (a

specialized differential pressure transducer), V/F

conversion circuitry and solenoid for auto-zero

function. Advanced digital signal processing produces

a highly accurate reading of even the noisiest flow

signals.

The auto-zero solenoid connects to the air velocity

pressure transducer's inlet ports to enable automatic

periodic re-calibration. This re-calibration ensures

accurate, drift-free airflow measurement. Automatic

re-calibration of the differential pressure transducers

occurs upon system power-up and when airflows are

stable with frequency selectable from 1 to 6 times a

day.

Summary of content (6 pages)

PAGE 1
Technical Specification Sheet Document No. 149-855 November 04, 2015 BACnet Lab and Pressurized Room Controllers with Off-board Air Modules NOTE: The 570-8xxPA BACnet laboratory controllers have new 67xx application numbers. New application numbers may require front-end graphics and reporting modifications. Upgrading to the new controllers might, in some rare instances, cause some programming rework. Lab Controller Module Lab Controller Module.
PAGE 2
NOTE: The redesigned 550-819B Off-board Air Module (OAM) replaces 550-819N for airflow measurement. The 550-819B is easily identifiable by the revision “BA” found on the product bar code label (550-819BBAxxxxxxx). 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.  Auto-discovery and Auto-addressing over entire MS/TP network. (WCIS 4.0 or later)  UL864 Listed for Smoke Control.
PAGE 3
Airflow Sensing and Control BACnet Lab and PRC Specifications Dimensions 4-1/8" W × 11-1/4" L × 1-1/2" H Weight Approx. 3 lbs (1.35 kg) Controlled Temperature Accuracy, Heating or Cooling ±1.5°F (0.
PAGE 4
Application Information New product/application number includes enhanced Room Unit functionality that enables room humidity and CO2 monitoring as well as Auto-addressing, Auto-discovery and Smoke Control listed controllers (570-8XXPKA). LCM/P/N Application Airflow Control Device Output Type 570-804PKA Application Flow-Tracking, compatible with VAV fume hood Sensor Venturi 6756 High-speed Modulating BTU Comp control.
PAGE 5
PRC / P/N Application Airflow Control Device Output Type Temperature Control Application Application Notes Output REHEAT 3- Flow-Tracking, NO FH FLOW INPUT. Room Temp or 570-810PA 570-810PKA 6773 Damper Low-speed Discharge Temp 3-state Sequenced with Radiation pos/0-10V Two pressurization states. (Optional) 570-811PKA 6761 Various Or Modulating Siemens Industry, Inc. compliance solution.
PAGE 6
Document Information Product Ordering Description Product Part Number Venturi Air Valves 149-425 Conical Venturi Air Valve for Critical Environments 149-524 Venturi Air Valve Accessories 149-495 LGSn...n Laboratory Room Single Duct Supply Air Terminal 149-319 Dual Duct Supply Terminal LGDn...n Laboratory Exhaust Air Terminal 149-320 Exhaust Terminal LGEn...n 149-338 Airflow Measurement Station LGFn...