Data Sheet for Product

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© 2014 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
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Buffalo Grove, IL 60089-4513
USA
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Document No. 149-851
Printed in the USA
Page 3 of 5
Agency Listings
UL Listing UL 916, PAZX
cUL Listed Canadian Standards C22.2 No.
205-M1983, PAZX7
FCC Compliance 47 CFR Part 15
Differential Pressure Sensor
The differential pressure sensor is easily connected to
the box’s air-velocity sensing elements to provide
measurement of the differential pressure. The
measured value is converted to actual airflow in cfm
(lps) by the controller.
Differential Pressure Sensor Specifications
Temperature Range 32°F to 122°F (0°C to 50°C)
Measurement Range 0 to 5200 fpm (0 to 26 m/s)
Autozero Module
The optional Autozero Module (see Figure Autozero
Module
) is required when continuous operation at
occupied flow is required for an area. The Autozero
Module is connected to the air velocity inlet ports of
the controller and provides periodic recalibration of
the air velocity transducer without changing air
volume being delivered to a room. This recalibration
ensures long-term precise airflow delivery.
Autozero Module Specifications
Power Consumption .75 VA @ 24 Vac max.
Dimensions 2" W x 1.51" H x 1.89" D
(58 mm x 78 mm x 29 mm)
Weight 1.3 oz. (36.9 g)
Autozero Module.
Product Ordering Information
Description
Product Part
Number
Siemens BACnet PTEC Dual Duct
Controller
550-497P
Large enclosure for electronic controller
without damper actuator (long board).
550-002
Document Information
Technical Specification Sheets/Technical
Instructions
Document Part
Number
Room Temperature Sensors – Series
2200
149-820
Duct Temperature Sensor 149-134P25
Low Limit Detection Thermostat 155-016P25
Analog Sensors – 10 K Ohm Thermistor 149-912, 149-
915, and 149-916
Siemens Valves and Electronic Actuators
599 Series Zone Valves 2-Way, 3-Way
Zone Valve Electric and Thermic
Actuators
155-034
599 Series Zone Valves and Actuators –
Modulating, On/Off Spring Return, 2-
Position Control
155-063