4
Air Handlers—Supply Air Temperature Control with Modulated Dampers and Modulated Cooling
Table 2: I/O Requirements
Input Requirements
Name Of Block
Type Of
Data
Engineer
Units
Req?
Range
Default Value
Description
SA-T
Analog
DEG F
Yes
-
-
Supply air temperature
SETPOINT
Analog
DEG F
No
-
55
°
F (13
°
C)
Setpoint
STATUS
Binary
-
Yes
-
-
Fan status
CLG-ENA
Binary
-
Yes
-
-
Cooling enable
DEHUMID
Command
% CLG
No
100 to 200
0%
Dehumidification
ST-OFF-V
Analog
%
No
0 to 200
0%
Status off value
Output Requirements
Input Span Limits
For Linked AOD
Object:1
Name Of
Connection
Type Of
Data
Engineer
Units
Req?
Range
Low
Limit
High
Limit
Description
CLG-AOD
Analog
% CLG
Yes
100 to 200
100
200
Cooling; analog output to
AOD
DMP-OUT
Analog
% OPN
Yes
0 to 100
0
100
Output to damper’s AOD
Note 1:
IMPORTANT: Set the
output
span limits so that as the signal to the AOD object increases, the device connected to the AOD
produces more cooling (less heating).
I/O Requirements