Operating Instructions

Chapter 1 – Product Overview
Hardware Inputs
7
Siemens Industry, Inc.
Owner's Manual, Apps 2920/2926
125-5109
2015-06-30
The following applications are covered:
 Room Pressurization with Hot Water Reheat and Fast Venturi – RTS (Application
2920)
 Room Pressurization with Hot Water Reheat and Fast Venturi – including BTU
Compensation (Application 2926)
 Slave Mode (Application 2997)
Hardware Inputs
Analog
Air velocity sensor (one or two depending on setup)
Application 2920
Application 2926
Fume hood controller input for FFM
Application 2920
Application 2926
Room temperature sensor
Application 2920
Application 2926
Discharge temperature sensor (10K Ω thermistor)
Application 2920
Application 2926
Digital
Occupancy button (option on room temperature sensor)
Application 2920
Application 2926
(Optional) Occupancy switch
Application 2920
Application 2926
Alarm switch
Application 2920
Application 2926
Hardware Outputs
Analog
Reheat valve
Application 2920
Application 2926
Supply Venturi valve
Application 2920
Application 2926
General exhaust Venturi air valve
Application 2920
Application 2926
Digital
Autozero solenoid in Offboard Air Module
(DO 8)
Application 2920
Application 2926
(Optional) Alarm
Application 2920
Application 2926