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Operating Manual
1592020130
1592020130 XR03_04CX GB 16.01.07.doc XR03CX – XR04CX
Protection: IP20; Frontal protection: IP65
Connections: Screw terminal block ≤ 2,5 mm
2
wiring.
Power supply: according to the model: 12Vac/dc, ±10%; 24Vac/dc, ±10%; 230Vac ±10%, 50/60Hz,
110Vac ±10%, 50/60Hz
Power absorption: 3VA max
Display: 2 digits, red LED, 14,2 mm high; Inputs: Up to 2 NTC or PTC probes.
Digital input: free voltage contact
Relay outputs: compressor SPST 8(3) A, 250Vac; or 20(8)A 250Vac
defrost or Aux: SPDT 8(3) A, 250Vac
Data storing: on the non-volatile memory (EEPROM).
Kind of action: 1B; Pollution grade: 2;Software class: A.;
Rated impulsive voltage: 2500V; Overvoltage Category: II
Operating temperature: 0÷60 °C; Storage temperature: -30÷85 °C.
Relative humidity: 20÷85% (no condensing)
Measuring and regulation range: NTC probe: -40÷110°C (-40÷230°F);
Resolution: 0,1 °C or 1°C or 1 °F (selectable); Accuracy (ambient temp. 25°C): ±0,7 °C ±1 digit
14. CONNECTIONS
XR03CX –20A o 8A Compressor
NOTE: The compressor relay is 20(8)A or 16(6)A depending on the model.
NOTE: 120Vac or 24Vac/dc or 12Vac/dc connect to 6-7
XR04CX –20A o 8A Compressor
NOTE: The compressor relay is 20(8)A or 16(6)A depending on the model.
NOTA: 120Vac o 24Vac/dc o 12Vac/dc connect to 6 and 7
15. DEFAULT SETTING VALUES
LAB
EL
DESCRIPTION RANGE DEFAULT
REGULATION
Hy Differential 0.1 ÷ 25°C/1 ÷ 45°F 2.0°C / 4 °F
LS Minimum Set Point -55°C÷SET/-67°F÷SET
-55 °C /-
55°F
US Maximum Set Point SET÷99°C/ SET÷210°F
99 °C /
99°F
ot First probe calibration -9.9÷9.9°C/-18÷18°F 0.0
P2
Second probe presence (Only
XR04CX)
n – Y y
oE
Second probe calibration (Only
XR04CX)
-9.9÷9.9°C/-18÷18°F 0.0
od Outputs activation delay at start up 0 ÷ 99 min 0
AC Anti-short cycle delay 0 ÷ 50 min 1
Cy Compressor ON time faulty probe 0 ÷ 99 min 15
Cn Compressor OFF time faulty probe 0 ÷ 99 min 30
CH Kind of Action (Only XR03CX) cL ÷ Ht cL
DISPLAY
CF Measurement units °C - °F °C / °F
rE Resolution (only for °C) dE – in dE
Ld Default Display (Only XR04CX) P1-P2 - SP P1
dy Display delay 0 ÷ 15 min 0
DEFROST
td Defrost type EL – in EL
dE Defrost termination temperature -50÷50°C/-58÷122°F
8.0 °C / 46
°F
id Interval between defrost cycles 0 ÷ 99 hours 6
Md Maximum length for defrost 0 ÷ 99 min. 30
dd Start defrost delay 0 ÷ 99 min. 0
dF Display during defrost rt – in – SP – dF it
dt Drip time 0 ÷ 99 min 0
dP Defrost at power-on y - n n
ALARMS
AU Maximum temperature alarm ALL÷99°C / ALL÷210°F
99 °C / 99
°F
AL Minimum temperature alarm -55°C÷ALU/-67°F÷ALU
-55 °C / -55
°F
Ad Temperature alarm delay 0 ÷ 99 min 15
dA
Exclusion of temperature alarm at
startup
0 ÷ 99 min 90
DIGITAL INPUT (Only XR03CX)
iP Digital input polarity cL – oP cL
iF Digital input configuration
EA – bA – do – dF –
Au– db
EA
di Digital input delay 0 ÷ 99 min 5
dC
Compressor and fan status when open
door
no /Fn / cP / Fc FC
rd Regulation with door open n - Y y
OTHER
d1 Thermostat probe display Read Only - - -
d2 Evaporator probe display Read Only - - -
Pt Parameter code table Read Only - - -
rL Firmware release Read Only - - -
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tel. +39 - 0437 - 98 33 - fax +39 - 0437 - 98 93 13
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