PLUS
300 EXPERT
U THR
Pag. 15
USE AND MAINTENANCE MANUAL
Rev. 01-18
FIRST LEVEL PROGRAMMING (User Level)
To access the first programming level proceed as follows:
1.
Press the
(
)
and
(
)
keys
simultaneously and keep them pressed for a few seconds
until the first programming variable appears on the display.
2.
Release the (
) and (
) keys.
3.
Select the variable to be modified using the (
) or (
) key.
4.
When the variable has been selected it is possible:
• To display its setting by pressing
SET
.
• To modify its setting by pressing the
SET key
and the
(
)
or
(
)
buttons.
When configuration values have been set you can exit the menu by pressing
(
)
and
(
)
simultaneously for a few seconds until the room temperature value appears.
5.
The modifications are saved automatically when you exit the configuration menu.
LIST OF 1
ST
LEVEL VARIABLES (User Level)
VARIABLES
MEANING
VALUES
DEFAULT
dtC
HOT temperature differential
with reference to main
SET-POINT. It is expressed in absolute value and it defines
the temperature hysteresis for the HOT referred to
temperature SET POINT.
(dtn+0,2) ÷ 10 °C
2 °C
dtF
COLD temperature differential
with reference to main
SET-POINT. It is expressed in absolute value and it defines
the temperature hysteresis for the COLD referred to
temperature SET POINT.
(dtn+0,2) ÷ 10 °C
2 °C
dtn
Temperature NEUTRAL zone
with reference to main
SET-POINT. In neutral zone cold and hot are not activated;
it includes symmetrically both a superior part (hot) and an
inferior part (cold) as to temperature SET-POINT.
dtF>dtn ÷ 0 °C
dtC>dtn ÷ 0 °C
0 °C
dUU
HUMIDIFICATION differential
with reference to humidity
SET-POINT. It is expressed in absolute value and it defines
the humidification hysteresis referred to humidity SET-
POINT
(dUn+1) ÷ 10
rH%
5 rH%
dUd
DEHUMIDIFICATION differential
with reference to
humidity SET-POINT. It is expressed in absolute value and it
defines the dehumidification hysteresis referred to humidity
SET-POINT .
(dUn+1) ÷ 10
rH%
5 rH%
dUn
Humidity NEUTRAL zone
with reference to main
SET-POINT . In neutral zone humidification and
dehumidification are not activated; it includes symmetrically
both a superior part (humidification) and an inferior part
(dehumidification) as to humidity SET-POINT.
dUU>dUn ÷ 0
rH%
dUd>dUn ÷ 0
rH%
0 rH%
d4
Defrost interval
(hours).
d4=0 disables the defrosts
0 ÷ 24 hours
0 hours
d5
Maximum lenght of defrost
(minutes)
1 ÷ 60 min
10 min
d6
End of defrost setpoint
.
The defrost is not executed if the temperature read
from defrost probe is superior to
d6
value.
(In case of broken probe it will have a timing defrost)
-35 ÷ 45 °C
15°C
CHAP. 5 - Parameters programming
5.7
5.8
