Metasys Network Technical Manual 636
Air Handlers Section
Technical Bulletin
Issue Date 0590
© 1990 Johnson Controls, Inc.
1
Order No. 636-128
Temperature control of the supply (discharge) air through sequencing
modulated dampers and modulated cooling
DMCLM.CMP
The following DOS path name indicates the location of the compound:
<FMS>\APPS\HVAC\CONTROL\TEMP-CTL\DMCLM.CMP
Temperature control of the supply (discharge) air through sequencing
modulated dampers and modulated cooling.
This compound can be
used to control and sequence the following:
•
modulated dampers, e.g., a set of outdoor air/return air mixing
dampers
•
modulated cooling devices, e.g., a chilled water valve
Other compounds can be connected to the DMCLM compound’s inputs to
perform the following functions:
•
setpoint control
•
fan status control
•
independent lockout of cooling control
•
dehumidification through the cooling devices
When used with the damper logic compound (DMPLOGIC), inputs are
provided for these additional features:
•
independent lockout of dampers
•
proportional mixed air low temperature limit protection
•
economizer control of the damper’s maximum position
•
ramped startup of dampers
Supply Air Temperature Control with Modulated
Dampers and Modulated Cooling
File Name
Path Name
Main Function
Accessories