York J Series - Page 82

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