User manual

Appendices Phason
58
Appendix F: Settings worksheets
Appendix F contains worksheets for you to use when programming your TVS settings. Each
worksheet contains a brief explanation of the information required. For more information about
programming your TVS, see Chapter 4: Programming the TVS on page 29.
Variable and relay stages settings worksheet
Parameter Stage 1 Stage 2 Stage 3 Range/options
Group set point 32.0 to 99.9°F (0 to 37.7°C)
Stage # idle speed 0 to 100 %
Stage # idle range 32.0 to 99.9°F (0 to 37.7°C)
Stage # set point 
_
32.0 to 99.9°F (0 to 37.7°C)
Stage # differential 32.0 to 99.9°F (0 to 37.7°C)
 Recommend these be set to the same value.
 If you need to connect more cooling elements than you have relays available,
and you are not using both variable stages, you can use an available variable
stage as an ON/OFF stage (for 120/230 VAC-powered equipment only).
 Set the idle speed to 100% and idle range to the temperature at which you want
the stage to switch on/off. You no longer have “variable” speed or power;
instead, you have either "full on" or "full off", the same as a regular cooling stage.
The set point and differential settings have no effect when you use a variable
stage this way, but they must be greater than the idle range.
Alarm settings worksheet
The alarm settings for your TVS determine which alarm conditions are enabled, which are disabled,
and their settings. All these work together to determine how and when the alarm relay activates (in
other words, signals an alarm condition).
The alarm relay activates if an enabled alarm condition is present for longer than the minimum
duration of one minute. The minimum duration prevents alarms from occurring when the
temperature rises or drops for just a few seconds.