1592038420 XRB30-60-70-77CH EN v1.1 2021.09.15 XRB 11/38
Delta temperature (Treg-Tevap): (0.1 to 25.5 °C)
7.1.5 EVAPORATOR FANS - FAn
Probe selection for evaporator fan: (nP; P1; P2; P3; P4) nP=no probe; Px=probe “x”. Note:
P4=Probe on Hot Key plug.
Evaporator fan stop temperature: (-55 to 50°C; -67 to 122°F) setting of temperature, detected
by evaporator probe. Above this temperature value fans are always OFF. NOTE: it works only
for the evaporator fan, NOT for the condenser fan.
Evaporator fan regulator differential: (0.1 to 25.0°C; 1 to 45°F)
Evaporator fan offset in energy saving: (-12 to 12°C; -21.6 to 21.6°F) offset to add during
energy saving (FSt+oF2)
Evaporator fan operating mode: (Cn; on; CY; oY)
• Cn = runs with the compressor, duty-cycle when compressor is OFF (see FoF, Fon, FF1 and
Fo1 parameters) and OFF during defrost
• on = continuous mode, OFF during defrost
• CY = runs with the compressor, duty-cycle when compressor is OFF (see FoF, Fon, FF1 and
Fo1 parameters) and ON during defrost
• oY = continuous mode, ON during defrost
Evaporator fan delay after defrost cycle: (0 to 255 min) delay before fan activation after any
defrosts.
Differential temperature for cyclic activation of evaporator fans (0=disabled): (0 to 50°C)
Evaporator fan operating mode: (Std; Fon; FoF) Std = standard mode, evaporator fan uses par
FnC; Fon = evaporator Fan always on; FoF = evaporator fan always off.
Evaporator fan ON time in normal mode (with compressor OFF): (0 to 255 min) used when
energy saving status is not active.
Evaporator fan OFF time in normal mode (with compressor OFF): (0 to 255 min) used when
energy saving status is not active.
Evaporator fan controlled during defrost: (n; Y) when activated, the evaporator fan will be
regulated during any defrost.
Evaporator fan ON time in energy saving mode (with compressor OFF): (0 to 255 min) used
when energy saving status is active.
Evaporator fan OFF time in energy saving mode (with compressor OFF): (0 to 255 min) used
when energy saving status is active.
7.1.6 AUXILIARY REGULATOR - AUS
Type of control for auxiliary regulator: (Ht; CL) Ht = heating; CL = cooling.
Set Point for auxiliary regulator: (-55.0 to 150.0°C; -67 to 302°F) it defines the room
temperature set point to switch auxiliary relay.
Auxiliary regulator differential: (0.1 to 25.5°C; 1 to 45°F) differential for auxiliary output set
point.
- ACH=CL, AUX Cut in is [SAA+SHY]; AUX Cut out is SAA.
- ACH=Ht, AUX Cut in is [SAA–SHY]; AUX Cut out is SAA.
Probe selection for auxiliary regulator: (nP; P1; P2; P3; P4) nP = no probe, the auxiliary relay
is switched only by the digital input; Px=probe “x”. Note: P4=Probe on Hot Key plug.
Auxiliary regulator disabled during any defrost cycle: (n; Y) n = the auxiliary relay operates
during defrost. Y = the auxiliary relay is switched off during defrost.
Base time for parameters Ato and AtF: (SEC; Min) SEC = base time is in second; Min = base
time is in minutes.
Interval of time with auxiliary output ON: 0 to 255 (base time defined in par. btA)
Interval of time with auxiliary output OFF: 0 to 255 (base time defined in par. btA)
7.1.7 TEMPERATURE ALARM - ALr
Probe selection for temperature alarms: (nP; P1; P2; P3; P4) nP=no probe; Px=probe “x”.
Note: P4=Probe on Hot Key plug.
Temperature alarms configuration: (Ab, rE) Ab = absolute; rE = relative.
Low temperature alarm: when this temperature is reached, the alarm is enabled after the Ad
delay time.
• If ALC=Ab → -55.0°C to ALU or -67°F to ALU.
• If ALC=rE → 0.0 to 50.0°C or 0 to 90°F.
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