Sub-Zero NANOCHILL NC-120A, User Manual

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11
Sr.No. Parameter (LCD Message)
Description of parameters and functions.
Parameter setting method.
COND. SET TEMP.
17
Function : To set Condenser set
temperature.
To change Cond. set temp.
parameter, press the set key. Use UP/DOWN keys to set desired
value.
0
1 C
0
99 C
0
60 C
EXAMPLE : If this parameter is set to
60ºC then controller will trip the
c o m p r e s s o r o n C o n d e n s e r H i g h
temperature, if the Condenser sensor
goes above 60ºC.
Range
Min Max
Fact. Set
0
1 C
0
10 C
0
2 C
To change Cond. set differential
parameter, press the set key.
COND. SET DIFF.
18
Function : To set differential for Condenser.
Use UP/DOWN keys to set desired
value.
Example: If condenser set temperature
0
is set to 60 C and condenser will trip
compressor when condenser
0
temperature goes above 60 C and will
reset only if temperature goes below
0
58 C.
Range
Min Max Fact. Set
12
Sr.No. Parameter (LCD Message)
Description of parameters and functions.
Parameter setting method.
FAULT SENSE LOGIC
Use UP/DOWN keys to set desired value.
19
Function: To set tripping voltage of digital
inputs.
To change Fault sense logic
parameter, press the set key.
0Vac 230Vac 230Vac
Range
Min Max Fact. Set
voltage level.
230Vac .
0Vac = Controller will sense faults at 0
230Vac = Controller will sense faults at
20
Range
Min Max
Disable Enable Disable
FAULT IN STAND BY Function : This decides whether controller
should display faults in stand by mode or
not.
To change Fault in Stand By
parameter, press the set key.
mode.
Note : Eventhough the fault sensing is
disabled in satnd by controller will display
High temperature and low temperature
alarms and sensor fail alarms.
Enable = Faults are enabled in stand by
Disable = Faults are disabled in stand by
Use UP/DOWN keys to set desired value.
mode.
Fact. Set
LP SENSING DLY
Use UP/DOWN keys to set desired
value.
EXAMPLE: If this delay is set to
40seconds then the controller will ignore
Lp fault for 40 seconds after compressor
on it avoid false tripping of Compressor.
21
Function: To set LP fault sensing delay
on compressor on.
To change LP Sensing Dly
parameter, press the set key.
1sec 90sec 40 sec
Range
Min Max Fact. Set
Use UP/DOWN keys to set desired
value.
Auto = Sets HP-AFT faults as Auto
Manual = Sets HP-AFT faults as Manual
ressetable. User need to press
RST key To clear these faults.
ressetable.
To change HP-AFT Fault Reset
parameter, press the set key.
Range
Min Max Fact. Set
Manual Auto Auto
HP/AFT RESET
22
Function : This parameter will set HP
and AFT fault to Auto or Manual reset.
EXAMPLE : If this parameter is set to
60ºC then when condenser temperature
goes above 60ºC, display will show
COND HI TEMP.
NC-120A NC-120A