User manual

49
Appendixes
This section contains reference information that is useful when installing, configuring, setting up, or
troubleshooting your SEC-HD.
 Appendix A: Glossary below
 Appendix B: Troubleshooting on page 50
 Appendix C: Factory defaults on page 54
 Appendix D: Installation worksheet on page 55
 Appendix E: Configuration worksheets on page 56
 Appendix F: Settings worksheets on page 57
 Appendix G: Motor curves on page 59
Appendix A: Glossary
control
elements
Devices connected to your SEC-HD, such as fans, heaters, actuators, and so on.
differential
The temperature setting above which a variable stage's fan runs at full speed.
For more information, read Programming variable stages, parameters 2 to 9 on
page 30.
firmware
The internal program instructions of your SEC-HD. You can update the firmware
version of your SEC-HD to the latest version using a SEC-HD Updater.
For more information, read Updating the firmware on page 45.
group
set point
The desired temperature for the room.
For more information, read Programming the group set point, parameter 1 on
page 29.
hysteresis
The number of degrees above the set point that a heating stage or relay switches
off, and the number of degrees below the set point that a cooling stage or relay
switches off.
For example, a household thermostat might switch on a furnace at 68 °F when the
house is cooling down, but switch it off at 72 °F when the house is warming up.
The difference between these two values is the hysteresis.
For more information, read Configuring hysteresis, parameter on page 22.