232
JOHNSON CONTROLS
5276178-JIM-C-0118
Service
When the HISTORY key is pressed, the password
prompt will appear. After the proper level 2 password
has been entered the screen will show the first active
warning. If there are no active warnings present, the
first fault will be displayed. If there are no faults in the
HISTORY buffer, the screen will display
“NO FAULT”
.
See Section 6
“
User Interface Control Center
”
of this
manual for additional information on how to navigate
through the HISTORY menu.
In addition to the items listed in Table 91 the following
items listed below are contained under the HISTORY
key.
“COMPRESSOR SYSTEM (1,2,OR 3) CLEAR” -
Whenever there is a compressor safety trip the Unit
Controller initiates the
“COMPR STATUS CLEAR
TIME (1,2, OR 3)”
timer. The Unit Control records the
time it takes for the trip to clear. When the fault clears
“COMPRESSOR SYSTEM (1,2,OR 3) CLEAR”
shows
the time it took for the fault to clear in the HISTORY
buffer.
“COMPRESSOR SYSTEM (1,2,OR 3)TIME OUT” –
If
the
“COMPR STATUS CLEAR TIME (1,2, OR 3)”
timer
reaches 60 minutes a
“COMPRESSOR SYSTEM (1,2,OR
3)TIME OUT”
will be indicated in the HISTORY buffer.
In most cases this indicates the compressor circuit over
current protector opened. The compressor circuit over
current protector is a manual reset device and the circuit
would not reset in the required 60 minute time frame.
The STATUS key will display the message
“COMP
SYS (1,2,OR 3) STATUS” “SAFETY LOCKOUT”.
The
Unit Controller locks out the corresponding compressor
system when a
“COMPRESSOR SYSTEM (1,2,OR 3)
TIME OUT”
is declared.
“COMPR SYSTEM (1,2,OR 3) INHIBIT” –
This
WARNING indicates the compressor system safety
circuit experienced a trip but reset prior to the
exploration of the 60 minute reset time function. If
the safety circuit does not reset in 60 minutes it will be
replaced with a
“COMPRESSOR SYSTEM (1,2,OR 3)
TIME OUT”
message.
Содержание 40 25 TON
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