85
ENG
µchiller +0300053EN rel. 2.2 - 14.12.2021
Parameter table
User Display Code Description Def. Min Max UOM R/W Modbus
M C013 Min compressor off time 60 30 999 s R/W HR163
M C014 Min time between consecutive compressor starts 360 300 999 s R/W HR164
M C017 Max high pressure threshold (HP) 65.0 0.0 999.9 °C/°F R/W HR324 (2R)
M C018 Min low pressure threshold (LP) 0.2 -99.9 99.9 bar/psi R/W HR326 (2R)
M C020 Maximum circuit destabilisation time 240 5 999 min R/W HR168
M C021 Circuit capacity distribution
(0 = balanced, 1 = grouped)
001- R/WHR169
S C022 Circuit 1: discharge temp. off set 0.0 -99.9 99.9 K/R R/W HR170 (2R)
S C023 Circuit 1: suction temp. off set 0.0 -99.9 99.9 K/R R/W HR172 (2R)
S C024 Circuit 2: discharge temp. off set 0.0 -99.9 99.9 K/R R/W HR174 (2R)
S C025 Circuit 2: suction temp. off set 0.0 -99.9 99.9 K/R R/W HR176 (2R)
S C026 Circuit 1: condensation pressure off set 0.0 -99.9 99.9 bar/psi R/W HR178 (2R)
S C027 Circuit 1: evaporation pressure off set 0.0 -99.9 99.9 bar/psi R/W HR180 (2R)
S C028 Circuit 1: condensing temp. off set 0.0 -99.9 99.9 K/R R/W HR182 (2R)
S C029 Circuit 1: evaporation temp. off set 0.0 -99.9 99.9 K/R R/W HR184 (2R)
S C030 Circuit 2: condensation pressure off set 0.0 -99.9 99.9 bar/psi R/W HR186 (2R)
S C031 Circuit 2: evaporation pressure off set 0.0 -99.9 99.9 bar/psi R/W HR188 (2R)
S C032 Circuit 2: condensing temp. off set 0.0 -99.9 99.9 K/R R/W HR190 (2R)
S C033 Circuit 2: evaporation temp. off set 0.0 -99.9 99.9 K/R R/W HR192 (2R)
M C034 HP pressure switch: input logic - 0/1=NC/NO 001- R/WCS027
M C035 Compressor overload protector: input logic
0/1=NC/NO
001- R/WCS028
M C036 Compressor: output logic - 0/1=NO/NC 001- R/WCS029
M C037 Evaporation pressure: probe type
0=0-5V - 1=4-20mA
001- R/WHR194
M C038 Evaporation pressure probe: min value 0.0 -1.0 99.9 bar/psi R/W HR195 (2R)
M C039 Evaporation pressure probe: max value 17.3 0.0 99.9 bar/psi R/W HR197 (2R)
M C040 Condensation pressure: probe type -
0=0-5V - 1=4-20mA
001- R/WHR199
M C041 Condensation pressure probe: min value 0.0 -1.0 99.9 bar/psi R/W HR200 (2R)
M C042 Condensation pressure probe: max value 45.0 0.0 99.9 bar/psi R/W HR202 (2R)
M C043 Discharge temperature
Probe type (0=NTC, 1=NTC-HT)
101- R/W204
M C044 Enable destabilisation - 0/1=No/Yes 101- R/WCS030
S C045 Refrigerant
3=R407C - 4=R410a - 6=R290 - 10=R744 - 22=R32
4 0 99 - R IR038
M C046 No. of unit circuits 112- R/WHR206
M C047 Type of compressors used
0=1 On/Off - 1=2 On/Off - 2=1 BLDC -
3= 1 BLDC+On/Off
003- R/WHR207
M C049 LP pressure switch: alarm delay from compressor start
If C049 = 0 the alarm is triggered even if
the compressors are off .
If C049 > 0 the alarm is only triggered
when the compressors are on
90 0 999 - R/W HR269
M C050 LP pressure switch: alarm delay in steady operation 15 0 999 - R/W HR269
M C051 HP pressure switch: input logic 0=NC 1=NO 001- R/WCS76
Tab. 6.b
6.3 BLDC and Inverter
User Display Code Description Def. Min Max UOM R/W Modbus
S P000 Min evaporation temp.: custom limit -25.0 -99.9 999.9 °C/°F R/W HR335 (2R)
S P001 Max condensing temp.: custom limit 70.0 -99.9 999.9 °C/°F R/W HR337 (2R)
M P003 Out of envelope alarm delay 120 0 999 s R/W HR340
M P004 Low pressure diff erential alarm delay 60 0 999 s R/W HR341
M P006 Oil recovery: min request for activation 35.0 0.0 100.0 % R/W HR344 (2R)
M P007 Oil recovery: min speed for activation 35.0 0.0 999.9 rps R/W HR346 (2R)
M P008 Oil recovery: comp. operating time at low speed 15 0 999 min R/W HR348
M P009 Oil recovery: force comp. speed time 3 0 999 min R/W HR349
M P010 Oil recovery: force comp. speed value 50.0 0.0 999.9 rps R/W HR350 (2R)
M P011 Oil equalisation: solenoid valve opening time at start-up 30 0 999 s R/W HR352
M P012 Oil equalisation: solenoid valve opening time 3 0 999 s R/W HR353
M P013 Oil equalisation: min solenoid valve closed time 1 0 999 min R/W HR354
M P014 Oil equalisation: max solenoid valve closed time 15 0 999 min R/W HR355
M P015 Oil equalisation: solenoid valve closed time increment 20 0 999 min R/W HR356
S P016 Oil equalisation valve: output logic - 0/1=NO/NC 001- R/WCS66
M P017 Enable oil equalisation valve - 0/1=No/Yes 001- R/WCS67
M P018 Enable oil recovery - 0/1=No/Yes 001- R/WCS68
S x P019 BLDC compressor circ.1: operating mode
0=AUTO; 1=0%, …101=100%
0 0101- R/W HR357
S x P020 BLDC compressor circ.2: operating mode
0=AUTO; 1=0%, …101=100%
0 0 101 - R/W HR358
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