µRack
Cod. CAREL +03P220431 rel. 0.0 del 08/09/05 - preliminary version
23
Parameter Type Pos. Display Description UOM Range Default Notes
Capacity comp 4 R/W C /06 Capacity of compressor 4 kW 0 to 500 0
Only if comp. with
different capacities
are enabled
Number of
compressors ON with
suction probe 1 fault
R/W C /07
If the suction 1 probe fault or not connected alarm is activated, this
number of compressors are started. These are in any case managed
by the individual alarms and general pressure switches.
0 to 4 0
Number of
compressors ON with
suction probe 2 fault
R/W C /08
If the suction 2 probe fault or not connected alarm is activated, this
number of compressors are started. These are in any case managed
by the individual alarms and general pressure switches.
0 to 4 0
For two circuits
only
Configure number of
fans
R/W C /09 Set the number of fans 0 to 4 2
Number limited by
the number of
compressors
already enabled
Enable fan inverter R/W C /10 Enable control of the fans with inverter 0 / 1 0
Display inverter output
value
R U /11 Display the inverter output as a percentage 0 to 100% 0
Number of fans ON
with probe fault:
R/W C /12
If the discharge probe fault or not connected alarm is activated, this
number of fans are started. These are in any case managed by the
individual alarms and general pressure switches..
0 to 4 0
Enable fans with
compressors ON
R/W C /13
0= independent operation of the fans
1= fans on only when at least one compressor is on
0 / 1 0
Digital input logic: N.O.
=No alarm
R/W C /14
Set the logic of the digital inputs.
0) N.O.: with no alarm the contact is open
1) N.C. : with no alarm the contact is closed
0 / 1 1
NO / NC
Multifunction input
configuration:
R/W C /15
Set the type of multifunction input:
0: no function
1) unit ON-OFF (NC contact ON)
2) change set point (set1- set2)
3) general high pressure switch NC
4) general high pressure switch NO
5) general low pressure switch 1 NC
6) general low pressure switch 1 NO
7) general low pressure switch 2 NC
8) general low pressure switch 2 NO
9) liquid level alarm NC
10) liquid level alarm NO
11) general fan thermal overload NC
12) general fan thermal overload NO
0 to 12
3
Type of discharge probe
Ratiometric/NTC
R/W C /16
Define the type of discharge probe:
0) probe not connected
1) NTC probe
2) 0 to 5volt probe
0 to 2 2
MIN suction pressure R/W C /17 Set the minimum suction value bar -1.0 to /18 -1.0
MIN discharge pressure R/W C /18 Set the minimum discharge value bar -1.0 to /19 0
MAX suction pressure R/W C /19 Set the end scale of the suction probe bar
/16 to
40.0
0 to 4.1
MAX discharge
pressure
R/W C /20 Set the end scale of the discharge probe bar
/17 to
40.0
0 to
34.5
Type of probe B2 R/W C /21
Configure probe B2:
0) probe not connected
1) ambient air temp. probe
2) auxiliary temperature probe (used for HT alarm)
0 to 2 0
Type of probe B3 R/W C /22
Configure probe B3:
0) probe not connected
1) outside air temp. probe/ for two circuit, condenser probe
2) auxiliary temperature probe (used for HT alarm)
0 to 2 0
Probe B4 calibration
(suction):
R/W I /23
Suction probe calibration
bar -12 to 12 0
Probe calibration
B1 (discharge) :
R/W I /24
Discharge probe calibration
bar -12 to 12 0
Probe B2 calibration R/W I /25
Room probe calibration
°C -12 to 12 0
Probe B3 calibration R/W I /26 Outside probe calibration °C -12 to 12 0
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