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44
80HMA
Logic to switch between Domestic Hot Water production
and Room Comfort
The logic is as follows:
-
Move to Domestic Hot Water Production if:
Domestic Hot Water Priority is higher than Room Priority
for more than 15 minutes
Room Priority is 0 and Domestic Hot Water Priority is
Higher than 0.
-
Move to Room Comfort if:
Room Priority is higher than Domestic Hot Water Priority
for more than 15 minutes
Domestic Hot Water Priority is 0 and Room Priority is
more than 0
Room Priority is 1 for more than 2 minutes.
Note:
If no Room Temperature sensor is available, Room Priority
GJ&2$Q4 /*;;G&2$Q
Valve is ON.
%5 XY[\>]?Q2$5Y
&2$Q]!/
-
DHW Priority is 0 when the DHW discrete Input - DI#
=!|$/; ! ++&%
+&
-1).
%2$Y2$5
is calculated only when the contact is Closed, otherwise
2$5G
Additional features for the Domestic Hot Water production:
Booster Heater
Booster Electrical Heaters (Electric Heaters inside Domestic
Hot Water Tank) are activated if DHW Temperature is below
the DHW Setpoint and the Schedule allows Electric Heaters
activation.
This function is available only if the Domestic Hot Water is
' &%/?@ %
without Solar Heating (Par.71: 1 or 2).
It is possible to force the activation of Booster Heater through
Par.78:
-
The code is automatically reset when the required DHW
Setpoint is reached.
-
;$/ ? @^! &%
Booster Electrical Heaters function is never activated.
Disinfection (Anti-Legionella)
This function is available only if the Domestic Hot Water is
managed by system control (Par.71: 1 or 2).
The disinfection function disinfects the DHW Tank by
! &&?@ !?^!$
!
^$ $ '
according to national and local regulations.
/$ $ % &&?
+%$%&&
¦; $ &!%! &*
!$
Note:
%2$ /
disinfection function has not been completed within the
% 2$
stopped, unless Par.109.2: is set to 1 - Allowed to Produce
2$`Q/// % /
The system will try to perform the disinfection cycle on the
next scheduled day.
This function prevents the freeze of water in the hydraulic
circuit.
- It works in all the modes except Cooling mode.
- It drives the system to Heat the water inside the pipes.
The Threshold Water Temperature is set on Par.102: - Water
J$X $ Q£%®>£'$&
3.4.6 Water Loop Antifreeze Protection
This function is active in all the operative modes except:
- Cooling mode
It prevents water freezing in the circuit and in the Domestic
Hot Water Tank.
The Threshold Water Temperature is set by Par.102: - Water
J$X $ Q£%®>£'$&
3.4.7 Domestic Hot Water Freeze Protection
There are different protection options active in OFF and
Domestic Hot Water mode to control the Room Temperature.
All these protections are possible only if the NUI is used as a
%
Home/Pool antifreeze protection
It is active when the Room Temperature shown on the
";$%";% '& +&, Q
J$X! ! |£}%? &|'
Pool sensor Par.112.6: 1).
;!+ & ' &%$
is in OFF/Domestic Hot Water mode.
Too cold protection
-
# & J+%$=##/ ? @
mode
-
# &!& J+%$&+=##Y
==;{ % ^!
";$|'!& %
Par.107: 1) is more than the value set in Par.13: ## - Too
&! % $ Y & ?J^;{
%& ^!&
by 2 °C.
Too Warm Protection
-
# & J+%$=##/ ? @
%
-
# &!& J+%$&+=##Y
==;{ % ^!
";$|'!& %
Par.107: 1) is more than the value set in Par.14: ##
-
^ @! % $ Y &
==;{ %& ^!
decreased at least by 2 °C.
3.4.8 Home Antifreeze / too Cold / too Warm Protections
Summary of Contents for 80HMA-M00
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