Operating Instructions
Table Of Contents
- How To Use This Manual
- Chapter 1 – Product Overview
- Chapter 2 – Applications
- Basic Operation
- Application 6665 Constant Volume Two Inlet Sensors with Optional Reheat
- Application 6666 Constant Volume One Inlet and One Outlet Sensor with Optional Reheat
- Application 6667 VAV - Two Inlet Sensors with Optional Reheat
- Application 6668 VAV - One Inlet and One Outlet Sensor with Optional Reheat
- Application 6669 VAV with Changeover
- Application 6693 Dual Duct 2 AVS Slave Mode
- Chapter 3 – Point Database
- Chapter 4 – Basic Service and Maintenance
- Glossary
- Index
Chapter 2 – Applications
Application 6667 VAV - Two Inlet Sensors with Optional Reheat
16
Siemens Industry, Inc. Owner's Manual 125-5069
2014-09-03
Application 6667 VAV - Two Inlet Sensors with
Optional Reheat
In Application 6667, the controller modulates two inlet damper actuators–one for the
hot duct and one for the cold duct.
In cooling mode, the controller modulates the cold duct damper to maintain the room
temperature setpoint and modulates the hot duct damper to ensure minimum airflow. In
heating mode, the controller modulates the hot duct damper in order to maintain the
room temperature setpoint and modulates the cold duct damper to ensure minimum
airflow. If auxiliary heat is used, the controller modulates an optional hot water valve or
up to three stages of electric reheat to maintain the room temperature setpoint.