Commissioning Instructions
Table Of Contents
- Before You Begin
- Verifying Power to the Controller
- Setting the Application
- Enabling Actuators
- Selecting Automatic Calibration Option
- Setting Room Temperature Setpoints
- Setting Override Time
- Setting Duct Area
- Setting Flow Coefficient
- Setting MIN and MAX Airflow Setpoints
- Setting Controller Address
- Performing the Automated Fault Detection and Diagnostics
Before You Begin
Setting MIN and MAX Airflow Setpoints
9
Siemens Industry, Inc. Start-up Procedures 140-1199
Restricted 2015-05-06
Box Manufacturer Flow Coefficients
Manufacturer
Sensor Type
Value
Anemostat 2-pipe without orifice
2-pipe with orifice
Spider without orifice
Spider with orifice
0.79
0.59
0.73
0.39
Carnes 2-pipe
Flow cross
0.66
0.59
Carrier 0.59
E.H. Price/Siemens Industry Terminal Boxes 0.78
Environmental Technologies 0.79
Krueger 0.68
Metal Aire 0.72
Nailor Industries 0.69
Titus 0.60
Trane 0.66
Setting MIN and MAX Airflow Setpoints
NOTE:
The maximum flow must be greater than or equal to the minimum flow.
Application 2520 and 2521:
1. Set CLG FLOW MIN to the desired minimum cooling airflow setpoint.
2. Set CLG FLOW MAX to the desired maximum cooling airflow setpoint.
Application 2521:
1. Set HTG FLOW MIN to the desired minimum heating airflow setpoint.
2. Set HTG FLOW MAX to the desired maximum heating airflow setpoint.
CAUTION
Terminal units with electric heat must have sufficient air flow across the coil to
prevent equipment damage.
This can be provided by a terminal fan, when present, or by sufficient supply airflow,
HTG FLOW MIN, per manufacturer’s recommendation or contract specifications.