18
Auxiliary relay management
-
OSt AUX output timer
: (0÷255 min) time in which the AUX output stays ON. It is used when
oA1 or oA2 or oA3 = tMr. With oAt = 0 the AUX relay is switched on and off only manually.
-
OSS Set point for AUX output, used when oA1 or oA2 or oA3 = AUS
(-50÷50; ris.1
°C/ 1°F)
-
OSH Differential for AUX output:
(-12.0÷12,0; ris.0,1°C/1°F, always ¹0) Intervention differential
for the set point of the AUX output, with OAH<0 the action is for heating, with OAH>0 it is for
cooling.
-
COOLING, OSH >0:
AUX output cut IN is OSS+OAH. Second compressor cut out is when the
temperature SETH+OAS.
-
HEATING, OSH <0:
second compressor cut IN is OSS-OAH. Second compressor cut out is
when the temperature OSS
-
OSi Probe selection for the second compressor: rP
=Thermostat probe;
EP
= Evaporator
probe;
tiM:
cycle count down;
i1P
= insert probe 1;
i2P
= insert probe 2;
i3P
= insert probe 3.
Defrost
-
tdF Defrost type (not present in the XB350C)
: (
rE
= electrical heater;
in
= hot gas).
-
IdF Interval between defrost cycles
: (0.1÷ 24.0; res. 10 min) Determines the time interval
between the beginning of two defrost cycles. (with 0.0 the defrost is disabled)
-
dtE Defrost termination temperature
: (-50÷50 °C/°F) Sets the temperature measured by the
evaporator probe, which terminates the defrost. Used only if EPP =YES
-
MdF Maximum length for defrost
: (0÷255 min) When EPP = no (timed defrost) it sets the
defrost duration, when EPP = YES (defrost termination based on temperature) it sets the
maximum length for defrost.
-
dFd Temperature displayed during defrost
: (rt , it, SEt, dEF
) rt:
real temperature;
it:
temperature at the start of defrost;
SEt:
set point;
dEF:
“dEF” message
-
Fdt Drip time
: (0 ÷ 60 min) Time interval between reaching defrosts termination temperature
and the restoring of the controllers' normal operation. This time allows the evaporator to
eliminate water drops that might have formed during defrost.
-
dAd Defrost display time out:
(0÷120 min) Sets the maximum time between the end of defrost
and the restarting of the real room temperature display.
Fans
-
FnC Fans operating mode during the holding phase
:
o-n
= continuous mode, Off during defrost;
C1n
= runs in parallel with the first compressor, OFF during defrost;
C2n
= runs in parallel
with the second compressor, OFF during defrost;
Cn
= runs in parallel with compressors,
OFF during defrost;
o-Y
= continuous mode, on during defrost;
C1y
= runs in parallel with the first compressor, on during defrost;
C2y
= runs in parallel with the second compressor, on during defrost;
Cy
= runs in parallel with compressors, on during defrost;
-
FSt Fan stop temperature
: (-50÷50°C/°F; res. 1°C/1°F).It used only if the EPP = yES. If the
temperature detected by the evaporator probe is above FSt fans are stopped. It serves to avoid
blowing warm air in the room.
-
AFH Differential for the stop temperature and for the alarm
(0.1 ÷ 25.0 °C; ris.0.1°C/1°F)
Fans carry on working when the temperature reaches the FSt-AFH value, the temperature alarm
recovers when the temperature is AFH degrees below the alarm set.
-
Fnd Fan delay after defrost:
(0 ÷ 255 min) The time interval between end of defrost and
evaporator fans start.
Temperature alarms
-
ALU MAXIMUM temperature alarm (it is used only during the holding phase)
: (1 ÷ 50
°C/°F) When the “SET+ALU” temperature is reached the alarm is enabled, (possibly after the
“ALd” delay time).
