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Carel mastercella Technical Leaflet

Carel mastercella
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+050004104 rel. 2.2 del 26.09.07
8
ENGLISH
Simbol Code Parameter AD U.O.M. Type Min Max Def.
c0 Comp., fan and AUX delay on start-up in dead band AD min C 0 15 0
c1 Minimum time between successive starts AD min C 0 15 0
c2 Minimum compressor OFF time AD min C 0 15 0
c3 Minimum compressor ON time AD min C 0 15 0
c4 Duty setting AD min C 0 100 0
cc Continuous cycle duration AD ore C 0 15 0
c6 Alarm bypass after continuous cycle AD ore C 0 250 2
c7 Maximum pump down time AD s C 0 900 0
c8 Comp. start delay after open PD valve (factory set to 0 and not visible) AD s C 0 60 5
c9 Enable autostart function in PD AD flag C 0 1 0
c10 Select Pump down by time or pressure AD flag C 0 1 0
0: Pump down by pressure
1: Pump down by time
c11 Second compressor delay AD s C 0 250 4
Simbol Code Parameter AD U.O.M. Type Min Max Def.
d0 Type of defrost AD flag C 0 4 0
0: Electric heater defrost by temperature
1: Hot gas defrost by temperature
2: Electric heater defrost by time
3: Hot gas defrost by time
4: Electric heater defrost thermostat by time
dI Interval between defrosts AD ore F 0 250 8
dt1 End defrost temperature, evaporator AD °C/°F F -50 200 4.0
dt2 End defrost temperature, aux evap. AD °C/°F F -50 200 4.0
dP1 Maximum defrost duration, evaporator AD min F 1 250 30
dP2 Maximum defrost duration, aux evap. AD min F 1 250 30
d3 Defrost start delay AD Min C 0 250 0
d4 Enable defrost on start-up AD flag C 0 1 0
0: No defrost is performed when the instrument is switched on
1: A defrost is performed when the instrument is switched on
d5 Defrost delay on start-up AD min C 0 250 0
d6 Display on hold during defrost AD - C 0 2 1
0: Alternating display of dEF and probe value
1: Display of the last temp. shown
2: Display of dEF steady
dd Dripping time after defrost AD min F 0 15 2
d8 Alarm bypass after defrost AD ore F 0 15 1
d8d Alarm bypass after door open AD ore/min C 0 250 0
d9 Defrost priority over compressor protectors AD flag C 0 1 0
0: The protection times c1, c2 and c3 are observed
1: The protection times c1, c2 and c3 are not observed
d/1 Display of defrost probe 1 AD °C/°F F - - -
d/2 Display of defrost probe 2 AD °C/°F F - - -
dC Time base for defrost AD flag C 0 1 0
0: dI in hours, dP1 and dP2 in minutes
1: dI in minutes, dP1 and dP2 in seconds
d10 Compressor running time AD ore C 0 250 0
d11 Running time temperature threshold AD °C/°F C -20 20 1.0
d12 Advanced defrost AD - C 0 3 0
dn Nominal defrost duration AD - C 1 100 65
dH Proportional factor, variation in dI AD - C 0 100 50
Simbol Code Parameter AD U.O.M. Type Min Max Def.
A0 Alarm and fan differential AD °C/°F C 0.1 20 2.0
A1 Type of threshold ‘AL’ and ‘AH’ AD flag C 0 1 0
0: AL and AH are relative thresholds
1: AL and AH are absolute thresholds
AL Low temperature alarm threshold AD °C/°F F -50 200 0.0
AH High temperature alarm threshold AD °C/°F F -50 200 0.0
Ad Low and high temperature signal delay AD min F 0 250 120
A4 Digital input 1 configuration A - C 0 14 0
D - C 0 14 3
0: Input not active
1: Immediate external alarm
2: Delayed external alarm
3: If model M, probe selection
3: Other models enable defrost
4: Start defrost
5: Door switch with compressor and fan stop
6: Remote on/off
7: Curtain switch

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Carel mastercella Specifications

General IconGeneral
SeriesMastercella
Front ProtectionIP65
Protection RatingIP65 (front)
Control TypePID, ON/OFF
DisplayLCD
InputsNTC, PT1000
OutputsRelay, SSR
Storage Temperature-30°C to +70°C
Analogue Outputs4-20 mA, 0-10 V
Serial CommunicationRS485, Modbus RTU
Relative Humidity<90% RH non-condensing

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