Operating Instructions
Table Of Contents
- Table of Contents
- How To Use This Manual
- Chapter 1—Hardware
- Chapter 2—Applications for ATEC— Base VAV
- Chapter 3—Applications for ATEC—VAV with Reheat
- Chapter Overview
- Introduction
- Application 2500: VAV Cooling Only
- Application 2501: VAV Cooling or Heating
- Application 2522: VAV with Electric Reheat or Baseboard Radiation
- Application 2523: VAV with Hot Water Reheat (only one reheat valve)
- Application 2524: VAV Series Fan Powered with One Stage of Electric Reheat
- Application 2526: VAV Parallel Fan Powered with One Stage of Electric Reheat
- Application 2473: Slave Mode
- Chapter 4—Point Database
- Chapter 5—Troubleshooting
- Glossary
- Index
Application 2520: VAV Cooling Only
Siemens Building Technologies, Inc. 2-3
Application 2520: VAV Cooling Only
Overview
In Application 2520, the controller modulates the supply air damper of the terminal box for
cooling. In order for it to work properly, the central Air Handling Unit must provide cool supply
air. See Figure 2-1 and Figure 2-2.
9
0
9
0
4
5
SUPPLY
AIR
3 TO 5 STRAIGHT DUCT
DIAMETERS REQUIRED
FOR PROPER SENSOR READING
AIR
VELOCITY
SENSOR
HI/LO Tubing
Connections
ATEC
24VAC
SUPPLY AIR
DAMPER
FLN
RTS
TEC0421R1
Figure 2-1. Application 2520 Control Drawing.