12
P
arameters :
Parameter
Setpoint
Hy
Hysteresis (HY)
LL
Lower setpoint limit (LL)
HL
Higher setpoint limit (HL)
CC
Anti short cycling (CC)
Co
Deep freezing time (Co)
AH
High. temperature alarm
AL
Low temperature alarm
Ad
Alarm differential
At
Alarm time delay
dF
Defrost function
dE
Defrost end function
dt
Defrost termination temp
di
Defrost interval time
dd
Max. defrost duration
dC
Dripping time
dU
First defrost after power on
dP
Display during defrost
dr
Delay displayed temp after defrost
iF
Digital input function
id
Digital input time delay
FF
Fan operating function
Fd
Fan start-up delay after defrost end
Fr
Fan start-up temperature after defrost
end
SF
Thermostat operating function when
sensor failure
So
Offset thermostat sensor
Un
Temperature units
PU
Display updating time delay
Catalogue Section 9
All manuals and user guides at all-guides.com
Setting Range
Temperature control parameters
-40 to 70°C
1 to 9 K
-40°C to higher limit
lower limit to 70°C
0 to 9 min
0 to 99 min
Alarm parameters
0 to 50°C related to setpoint
-50 to 0°C related to setpoint
1 to 9 K
0 to 99 min
Defrost parameters
0 = Electric heater
1 = Hot gas
0= by time
1= by temperature
0 to 20°C
0 to 99 hours
0 to 99 min
0 to 99 min
OFF, 0 to 99 min
0 = Last value before defrost
1 = Set point
1 to 99 min
Digital input parameters
0 = Instrument OFF
1 = Alarm signalling
2 = Alarm reset
3 = Alarm reset and fan cut-off
0 to 99 sec
Fan control parameters
0 = Parallel with compressor
1 = Continuous running
0 to 99 min.
-30 to +5 °C/-22 to 41°F
Other parameters
0 = Always ON
1 = Always OFF
2 = Automatic
-20 to +20 units
0 = °C
1 = °F
1 to 99 sec
CR1
Default
MR12
MR15
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2
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-40
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70
•
2
•
60
•
10
•
-10
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1
•
30
0
1
7
•
6
•
40
•
5
•
OF
•
0
•
20
•
0
•
5
0
5
2
•
0
•
0
•
0
•
1
© 2000 Johnson Controls, Inc.
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