![background image](http://html.mh-extra.com/html/carrier/80hma-m00/80hma-m00_installation-operation-and-maintenance-instructions_2563379041.webp)
41
80HMA
Select Heating
/Cooling
/Domestic Hot Water
/
OFF
mode:
By pressing
on the user interface NUI (only for
X } '>+'&'&%
+ $& %&Y
&+ %&&',
- Board address selected - and the corresponding Zone
1 or 2 which will be checked with Par.22 - Virtual zone
selected.
Heating/Cooling modes can be set through external
%$%Y '
- DI#.Domestic Hot Water and OFF Modes could be
selected through User Interface - NUI in any case.
The Water Temperature is determined according to the
= J^!% ! X
climatic curve during commissioning (see advanced
settings).
Domestic Hot Water production is always allowed during
Heating/Cooling/Domestic Hot Water modes according to the
priority logic.
Room Comfort is de-activated in Domestic Hot Water mode
(only the protections are enabled).
&'";$Q"; ,Q %
Par.107: 1 to allow NUI to control the temperature. ^%
it is possible to set the required temperature on the
!&% $ Y &&& !!
'";|?' &%$
allowed).
-
The Room Temperature Sensor on the NUI can be
adjusted by ±5°C through Par.18: - Delta to apply to
Room Temperature read by User Interface (°C)
&'^ QJ&+%&
possible to use a Room Thermostat and it's dry contact
output to manage the Comfort Module. Thus the Discrete
;!Q/; % &' &'&
'&Q/; &^'&|$ ?YJ}
and the Variable Table.
The Room thermostat can also be used in combination
";$";% !?
Cooling operations.
3.4.1 Mode Selection
3.4 Operation Controls
3.4.2 Room Temperature Setpoint Control
3.4.3 Backup Heaters (Heating mode only)
If the Outdoor Air Temperature is lower than the value set
in Par.92 - OAT Threshold for Backup Heaters and if the
difference between the Leaving Water Temperature Setpoint
and the current Leaving Water Temperature is higher than
the value in Par.93 - Water Temperature Hysteresis for
!?%$ | }
>Q/&$ !?%! $&
Heaters is turned ON.
If the Electric Heaters activation conditions are still valid after
>|$! $&?
+ }% ! $&?=%
and then the third step with the same activation criteria.
;$= ' $$&%
Heating is performed through the Backup Electrical
?%! $Q
%? & $&&$&
in Heating.
;? & %+@^!
Setpoint is determined through Climatic Curves. A selection
should be made between pre-set Climatic Curves or Custom
Climatic Curves.
Parameters:
Par.51 for Heating
Q$ &+% &
parameters are required see related paragraph
For Heating Custom Climatic Curve
Q ,$ " ?% @^!
Q $ ^#"%Y@^!
Q$ %?^!
Par.56 for Cooling
Q$ &+% &
parameters are required
see related paragraph
For pre-set Climatic Curve
Q$ J |!" }%
Water Temperature
Q,$ J |!" }%?
Water Temperature
Adjustment on Climatic Curves for Users with Level Access
1 or 2.
The Water Temperature Setpoint calculated by the climatic
curves could be adjusted by ±5°C to tune the system with a
better response on Room Temperature. This will not change
the initial Climatic Curves parameters.
Heating
Q %QJ*?&+%/&^
applied to the maximum temperature of Heating Climatic
Curve (°C)
Cooling
Q %QJ* &&+%/&^
applied to the minimum temperature of Cooling Climatic
Curve (°C)
3.4.4 Climatic Curve
Summary of Contents for 80HMA-M00
Page 149: ...149 80HMA 8b 8b Other body valve possible positions ...
Page 161: ......
Page 162: ......
Page 163: ......
Page 164: ...Y Y 11 Q Q Q ...