Universal-XR
7/17
UXR01212015_REV1.4mm
Installation and Operating Instructions
DSD
Delay start of defrost:
(0 to 255min) delay between reaching the defrost interval time (as defined by parameter
idF
) and when a defrost cycle actually starts. Used to stagger
defrosts between multiple systems.
DFP
Probe Selection for first defrost cycle
MDF
(Maximum) duration of defrost:
(0 to 255min) time duration of a defrost cycle when only one probe is in use, or defrost time out override when second (evaporator) probe is in
use. Set it to zero to disable defrost cycles.
DTE
Defrost termination temperature:
(-55 to 50°C or -67 to 122°F) sets the defrost termination temperature. Measured by the evaporator probe.
DSP
Probe selection for second defrost
NDS
(Maximum) length for second defrost:
(0 to 255min) when
P3P = 0
, (not evaporator probe: timed defrost) it sets the defrost duration, when
P3P = 1
(defrost end based on
temperature) it sets the maximum length for defrost.
*** Only if being used with tC7***
Note:
The P3 probe will be automatically set as second evaporator probe by the
tC
parameter.
DTS
Second termination temperature
: (-55 to 50°C or -67 to 122°F) sets the temperature measured by the second evaporator probe (P3), which causes the end of defrost.
DFD
Display during defrost:
0=
rt
= real temperature;
1= it
= temperature at defrost start;
2= sEt
= set point;
3= dEF
=
dEF
label;
4= dEG
=
dEG
label.
DAD
Defrost display time out:
(0 to 250min) after a defrost, the controller will revert to current temperature display when the temperature is back down within its normal working
range, or after the time set in this parameter, whichever is the sooner.
TDF
Defrost type:
0= El
= electrical heater;
1= rE
= hot gas, compressor runs during defrost.
FDT
Drain down time:
(0 to 255min) drain down time. Runs concurrently with
Fnd
(Fan delay after defrost time).Both fan and compressor are off during this time period.
DPO
First defrost after power-on:
0=
Y
= immediately;
1= n
= after the
idF
interval time.
FNC
Fan operating mode:
0=
C_n
= cycles on/off with the compressor, OFF during defrost;
1= O_n
= continuous mode, OFF during defrost;
2= C_Y
= cycles on/off with the compressor, ON during defrost;
3= O_Y
= continuous mode, ON during defrost;
FST
Fan stop temperature:
(-55 to 50°C or -67 to 122°F) temperature above which the evaporator fan stops (during the normal refrigeration cycle).
FND
Fan delay after defrost:
(0 to 255min) the time interval between the end of a defrost cycle and evaporator fans starting. Runs concurrently with
Fdt
(Drain down time). Always
keep
Fnd
longer that
Fdt
.
FON
Fan ON time:
(0 to 15min) used to set an On/Off cycle of the evaporator fans while the compressor is off. With
FnC = 0
or
FnC = 2
, it sets the evaporator fan ON cycling time
when the compressor is OFF. With
Fon = 0
and
FoF ≠ 0
, the fans are always off. With
Fon = 0
and
FoF = 0
the fans are always off.
FOF
Fan OFF time:
(0 to 15min) used to set an On/Off cycle of the evaporator fans while the compressor is off. With
FnC = 0
or
FnC = 2
, it sets the evaporator fan OFF cycling time
when the compressor is OFF. With
Fon = 0
and
FoF ≠ 0
, the fans are always off. With
Fon = 0
and
FoF = 0
the fans are always off.
FAP
Probe selection for fans management
OT
Thermostat probe calibration:
(-12.0 to 12.0°C or -21 to 21°F) adjustment for thermostat probe (
Room
) offset.
P2P
Evaporator probe presence
(Evap on the label):
0= n
= not present;
1= Y
= present.
OE
Evaporator probe calibration:
(-12.0 to 12.0°C or -21 to 21°F) adjustment for evaporator probe offset.
