µRack
Cod. CAREL +03P220431 rel. 2.2 dated 10/02/12
29
Parameter Type Pos. Display Description UOM Range Default Notes
MIN discharge/suction 2
pressure
R/W C /18 Set the minimum value of discharge probe/suction probe of second circuit bar -1.0 to /20 0
MAX suction pressure R/W C /19 Set the maximum value of the suction probe bar /17 to 45.0 9.3
MAX discharge/suction 2
pressure
R/W C /20
Set the maximum value of the discharge probe/suction probe of second
circuit
bar /18 to 45.0 34.5
B2 probe type R/W C /21
B2 probe set:
0) probe not connected
1) ambient air temp. probe / for two circuit, condenser probe
2) auxiliary temperature probe (used for HT alarm)
0 to 2 0
B3 probe type R/W C /22
B3 probe set:
0) probe not connected
1) outside air temp. probe
2) auxiliary temperature probe (used for HT alarm)
0 to 2 0
B4 probe calibration (suction) R/W I /23
Suction probe calibration
bar -12 to 12 0
B1 Probe calibration
(discharge)
R/W I /24 Discharge probe calibration bar -12 to 12 0
B2 probe calibration R/W I /25 Room probe calibration °C -12 to 12 0
B3 probe calibration R/W I /26 Outside probe calibration °C -12 to 12 0
Display probe R/W U /27
Probe displayed as default
0) probe B1
1) probe B2
2) probe B3
3) probe B4
0 to 3 3
Alarm relay logic R/W C /28
Logic of the alarm relay
0) NC
1) NO
0/1 1 If alarm relay enabled
Type of compressor thermal
overload alarm reset
R/W C /29
Type of thermal overload/generic alarm reset relating to the individual
compressor. Automatic: when the alarm stops, the compressor starts again.
Displayed only if the parameters are enabled
0) AUTO
1) MANUAL
0/1 1
Type of fan thermal overload
alarm reset
R/W C /30
Type of thermal overload/generic alarm reset relating to the individual fan.
Automatic: when the alarm stops, the fan starts again. Displayed only if the
parameters are enabled
0) AUTO
1) MANUAL
0/1 1
Type of general discharge
pressure switch reset
R/W C /31
Type of general high pressure switch reset
0) AUTO
1) MANUAL
0/1 0
Prevent high discharge
pressure
R/W C /32 Enable high discharge pressure prevention 0/1 0
Set point R/W C /33 High discharge pressure prevention set point bar 0 to 45.0 18.0 If prevent enabled
Refrigerant conversion R/W C /35
Type of refrigerant used
0) No refrigerant
1) R22
2) R134a
3) R404a
4) R407c
5) R410a
6) R507
7) R290
8) R600
9) R600a
10) R717
11) R744
0 to 11 3
Serial address R/W C /36
Supervisor configuration. Identification number of the µRack board for the
supervisor serial network
1 to 200 1
Delay restart after black out R/W I /37 Enable delay at start-up after a black out, with the set time. If 0 no delay s 0 to 999 0
Unit ON/OFF from the
supervisor
R/W I /38
Enable/disable unit from the supervisor.
0) OFF
1) ON
0/1 1
Unit ON/OFF by parameter R/W U /39
Enable/disable unit by parameter
0) OFF
1) ON
0/1 1
New User password R/W U /40 Used to change the password to access the User branch 0 to 999 22
New Installer password R/W I /41 Used to change the password to access the Installer branch 0 to 999 44
New Manufacturer password R/W C /42 Used to change the password to access the Manufacturer branch 0 to 999 77
B4 probe type R/W C /43
B4 probe set:
0) probe not connected
1)0 to 5 V probe
2) 0 to 5 V probe
0 to 2 2
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