The ON/OFF Function Parameters • 11
ArP Probe selection for auxiliary nP = no probe, the auxiliary relay is switched only by the digital input
P1 = Probe 1 (thermostat probe)
P2 = Probe 2 (evaporator probe)
P3 = Probe 3 (display probe)
P4 = Probe 4
Sdd Auxiliary relay OFF during de-
frost
n = the auxiliary relay operates during defrost
y = the auxiliary relay is switched OFF during defrost
ALARMS
ALP Probe selection for alarm nP = no probe, the temperature alarms are disabled
P1 = Probe 1 (thermostat probe)
P2 = Probe 2 (evaporator probe)
P3 = Probe 3 (display probe)
P4 = Fourth probe
ALC Temperature alarms configura-
tion
(Ab; rE)
Ab = absolute temperature: alarm temperature is given by the ALL or ALU values. rE
= temperature alarms are referred to the setpoint. Temperature alarm is enabled when
the temperature exceeds the SEt + ALU or SEt - ALL values.
ALU Maximum temperature alarm (SEt to 150°C; SEt to 302°F)
When this temperature is reached, the alarm is enabled, after the ALd delay time.
ALL Minimum temperature alarm (-100 to SEt; -148°C to 230°F)
When this temperature is reached, the alarm is enabled, after the ALd delay time.
AFH Differential for temperature
alarm recovery
(0.1 to 25.5°C; 1 to 45°F)
Intervention differential for recovery of temperature alarm. It is also used for the restart
of the fan when the FSt temperature is reached.
ALd Temperature alarm delay (0 to 255 min)
Time interval between the detection of an alarm condition and alarm signaling.
dAo Exclusion of temperature alarm
at start-up
(from 0.0 min to 23.5 hr)
Time interval between the detection of the temperature alarm condition after device
power ON and alarm signaling.
CONDENSER TEMPERATURE ALARM
AP2 Probe selection for temperature
alarm of
condenser
nP = no probe
P1 = thermostat probe
P2 = evaporator probe
P3 = configurable probe
P4 = probe on Hot Key plug
AL2 Low temperature alarm of con-
denser
(-100 to 150°C)
When this temperature is reached, the LA2 alarm is signaled, possibly after the Ad2 de-
lay.
AU2 High temperature alarm of con-
denser
(-100 to 150°C)
When this temperature is reached, the HA2 alarm is signaled, possibly after the Ad2 de-
lay.
AH2 Differential for temperature
condenser alarm recovery
(0.1 to 25.5°C; 1 to 45°F)
Ad2 Condenser temperature alarm
delay
(0 to 255 min)
Time interval between the detection of the condenser alarm condition and alarm signal-
ing.
dA2 Condenser temperature alarm
exclusion at start up
(from 0.0 min to 23.5 hr, res. 10 min)
bLL Compressor OFF with low tem-
perature alarm of condenser
n = no: compressor keeps on working
Y = yes, compressor is switched OFF until the alarm is present, in any case regulation
restarts after Ac time at minimum.
Code Parameter Function
Table 7-1 - List of Parameters
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