13
4.2.4
H
EATING
–
COOLING HYSTERESIS
Switching from heating to cooling takes place after the heating is switched off and the temperature
rises by HYS1 above the set temperature. Switching from cooling mode to heating mode takes place
after cooling is switched off and the temperature drops by HYS1 below the set temperature.
Name
Default value
Range
Description
HYS1
2.0°C
0.5 ÷ 9.9°C
Dead zone between heating and cooling.
4.2.5
P
RE
-
HEATING
(
IF INCLUDED
)
The pre-heater is installed before the heat exchanger. The temperature is measured by a sensor
located at the outlet of the heat exchanger. The set temperature is marked "T set". "T measured"
indicates the current temperature on the heat exchanger.
Name
Default value
Range
Description
t set
8,0
o
C
-
10 ± 30
o
C
Required temperature for preheater
4.2.6
C
OMPRESSOR
Name
Default value
Range
Description
CPOFF
180 sec
30 ÷ 300
sec
Compressor shutdown time:
Minimum time between switching the
compressor off and on again.
CPON
30 sec
5 ÷ 100 sec
Inactive alert time:
Time during which the low pressure switch is
inactive after starting the compressor
Heater
Cooler
Set temperature
–
HYS1
Set tempe HYS1
Set temperature
