56
COSMOGAS
Ecotower
8.2.3 - DHW
The menu consists of several pages and, by scrolling with the
arrows, it is possible to consult and modify all the parameters
relating to DHW circuit:
Parameter
Permission
level
U.M.
Range
Factory setting
Costum
value
Setpoint DHW
WARNING!!! A temperature higher than 55 ° C can
cause malfunctions.
End user
°C
25...75
50
DHW restart ΔT setting
(Compressor light on negative hysteresis on “Setpoint
DHW”)
End user
°C
2...15
5
Shifting priority
WARNING!!! If this parameter is not selected the
priority is totally to the DHW, if is selected the priority
is conditioned by the following parameters.
End user
/
Selected -
Not selected
Not selected
Start shifting priority below outdoor temp.
(Outdoor temperature for the start-up of the DHW condi-
tioned priority. Over this outdoor temperature value, the
DHW priority is total respect to the heating function)
End user
°C
-15...20
15
Sanitary water min. working time (minutes)
(Minimum DHW working time in DHW conditioned
priority)
End user
Min
10...60
30
Heating max. working time (minutes)
(Maximum time in heating after which switches to dome
-
stic hot water)
End user
Min
30...180
90
Allowable temp drift in heating
(Maximum cooling allowed on the heating temperature
after which the unit is switched from DHW to heating to
recover heat to the rooms)
End user
°C
3...10
6
DHW backup heater for shifting priority
(Enabling the DHW electric heater, item “20” of Figure
6-22, during the conditioned DHW phase)
End user
/
Selected -
Not selected
Not selected
DHW Eco operation (Don’t change)
Installer
/
Selected -
Not selected
Not selected
Outdoor temp. to start DHW ECO operation
(Don’t change)
Installer
°C
-20...43
-20
Figure 8-8 - DHW icon
8 - USE
