A-3
Control Point Types
AHUF
AHU off relay - dual relay control. This point type is used with applications that use two
auxiliary relays for AHU control - one relay for ON and one relay for OFF. Use this point type
for the OFF relay. See AHUO also. If you have a single relay that performs both ON and OFF
functions, see AHUR.
AHUO
AHU on relay - dual relay control. This point type is used with applications that use two
auxiliary relays for AHU control - one relay for ON and one relay for OFF. Use this point type
for the ON relay. Points assigned with this type operate on general alarm. See AHUF also. If
you have a single relay that performs both ON and OFF functions, see AHUR.
AHUR
AHU on/off relay - single relay control. This point type is used with applications in which a
single relay performs AHU ON and OFF control. Points assigned with this type operate on
general alarm.
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Circuit Status
LCD Display
System Status
ON
AHU OFF Relay
ON
OFF
AHU OFF Relay
OFF
AHU OFF Relay
CODING
Disabled TBL
AHU OFF Relay
TROUBLE
OFF AUTO TBL
AHU OFF Relay
TROUBLE
Circuit Status
LCD Display
System Status
ON
AHU ON Relay
ON
OFF
AHU ON Relay
OFF
AHU ON Relay
CODING
Disabled TBL
AHU ON Relay
TROUBLE
OFF AUTO TBL
AHU ON Relay
TROUBLE
Circuit Status
LCD Display
System Status
ON
AHU Relay
ON
OFF
AHU Relay
OFF
AHU Relay
CODING
Disabled TBL
AHU Relay
TROUBLE
OFF AUTO TBL
AHU Relay
TROUBLE
