Temperature Differential Alarms Alarm Configuration • 7-5
The points added to the Emerson T-Stat devices are to ensure that two kinds of TD alarms are generated respectively,
and they are listed in the table below:
Alarms Type
(Same alarm short
description)
Conditions Alarms Generate
Alarms by Heat Alarm
Diff
When the system goes to heating control, an alarm is generated when the Supply Air Temp
value is not higher than the Space Temp value by at least the Heat Alarm Diff amount.
If the Supply Air Temp value is higher than the space temp value by the Heat Alarm Diff
amount or more, then the previously generated alarm returns to normal.
About the Space Temp Value:
1. System uses the Rem Space Temp value as the space temp value if Remote Spc Temp
is set as Yes.
1. System uses the value from a physical space temp probe as the space temp if such a
probe is installed.
2. Remote Spc Temp is set as No
Alarms by Cool Alarm
Diff
When the system goes to cooling control, an alarm is generated when the Supply Air Temp
value is not lower than the Space Temp value by at least the Cool Alarm Diff amount.
If the Supply Air Temp value is lower than the Space Temp value by the Cool Alarm Diff
amount or more, then the previously generated alarm returns to normal.
The rules that system chooses the Space Temp value is the same as those for alarms by Heat
Alarms Diff.
Table 7-4
- Alarms Generated from Emerson T-Stat
To Next Page
Loading...
