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
Chapter 1—Hardware
1-2 Siemens Building Technologies, Inc.
The Controller
The Actuating Terminal Equipment Controller (ATEC) is an APOGEE Terminal Equipment
Controller (TEC) from Siemens Building Technologies, Inc. It is used in pressure-independent
Variable Air Volume (VAV) applications. The ATEC is an electronic-output controller that
combines a damper actuator and a TEC into one package. It provides Direct Digital Control
(DDC) and can operate independently as a stand-alone DDC room controller or networked
with an APOGEE field panel. The controller provides all input/output, system, and local
communication connections. Hardware consists of the controller, an air velocity sensor, and a
damper actuator assembly.
The base model of the ATEC (Figure 1-1) is designed to control terminal boxes, single duct. It
includes Applications 2520 and 2521. It has removable terminal blocks for the floor-level
network (FLN) and power terminations.
EHC
Lo
Hi
24 VAC
Air Velocity
Sensor
Room Temperature
Sensor Connection
FLN Connection
Power
Connection
BST/FLN LED
TEC0407R2
Figure 1-1. Actuating Terminal Equipment Controller (ATEC)—Base VAV.