York YCAV0157 Installation Operation & Maintenance page 289

TABLE 28 contains the operational status code with it's
associated meaning to be used for decoding ISN Opera-
tional Codes on Pages 56 and 58 in Table 26.
TABLE 28 - OPERATIONAL STATUS CODES
CODE TYPE
63 Unit
64 Unit
65 Unit
66 Unit
67 Unit
68 Unit
69 Unit
70 Unit
71 Unit
72 Unit
73 Unit
74 System
75 System
76 System
77 System
78 System
79 System
80 System
81 System
82 System
83 System
84 System
85 System
86 System
87 System
88 System
89 System
90 System
91 System
92 System
93 System
94 System
95 System
96 System
JOHNSON CONTROLS
ISN OPERATIONAL STATUS CODES
SOURCE
Panel
Panel
Panel
Panel
Panel
Panel
Panel
-
-
-
-
Panel
Panel
Panel
Panel
Panel
Panel
Panel
Panel
Panel
Panel
Panel
Panel
VSD
Panel
Panel VSD Internal Ambient Temperature Limiting
Panel
Panel
Panel
Panel
-
-
-
-
The table also classifies each status as a unit or system
type and lists which board (Chiller Control Board (panel)
or VSD logic board) generates the status condition.
FAULT or INHIBIT CODES
Manual Override
Daily Schedule Shutdown
Unit Switch OFF
Remote Controlled Shutdown
Loss of External Communications
Flow Switch Shutdown
VSD Cooling Shutdown
SPARE 1
SPARE 2
SPARE 3
SPARE 4
No Run Permissive
Anti-Recycle Timer Active
System Switch OFF
System Not Running
System Running
Discharge Pressure Limiting
Suction Pressure Limiting
Motor Current Limiting
Motor Temperature Limiting
ISN Motor Current Limiting
Remote Motor Current Limiting
System Pumping Down
VSD PreCharging
VSD Baseplate Temperature Limiting
Sound Limiting
ISN Sound Limiting
Remote Sound Limiting
Pulldown Motor Current
SPARE 7
SPARE 8
SPARE 9
SPARE 10
FORM 201.21-NM1 (1223)
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