PLUS300 EXPERT U THR
Pag. 15
USE AND MAINTENANCE MANUAL
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)
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.
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.
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
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
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 .
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%
Defrost interval (hours).
d4=0 disables the defrosts
Maximum lenght of defrost (minutes)
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)
CHAP. 5 - Parameters programming
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