York J Series Manual page 82

Service
TABLE 19 - FAULT DESCRIPTIONS TABLE (Continued)
FAULT TITLE
RDU's HISTORY
BUFFER
Unit programmed to enable RAT
RAT Sensor Fault Sensor AND RAT sensor is not
reliable.
Supply fan has been off for at
Air Switch Fault least for 5 minutes AND the Air
Proving Switch remains closed.
Unit Filter Switch input closes for
Unit Filter Fault
at least 1 minute.
82
SET WHEN RESET WHEN
Unit programmed to
disable RAT sensor OR
RAT sensor is reliable.
Supply fan has been off
for at least 5 minutes
AND Air Proving Switch
opens.
Unit Filter Switch input
opens.
FORM 100.50-NOM7 (808)
SHUT GENERAL
DOWN STATUS
(1)
TROUBLE ALARM
OpData/RA Temp = ???
* *(14)
OpData/RA Enth = ???
*
*
JOHNSON CONTROLS
ADDITIONAL ACTIONS
or DISPLAYS
(3) (4)
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