Riello TAU Unit 50 Installation And Maintenance Manual page 53

After the selection, use the ► key to highlight the value and use
the ▲ / ▼ keys to change the selected value. Press the ● key to
confirm/save the new settings..
Central Heating (CH)
" "
CH Setpoint
" "
the set point can be set within a minimum and maximum val-
ue as indicated respectively on Par. 23 and 24 as shown in the
figure.
The outdoor temperature sensor (accessory) is not required and
if connected the outdoor temperature that is measured does
not influence the setpoint that has been set.
The parameters regulating such temperature are:
Par.
Description
No.
Sets the desired flow temperature with heating mode.
3
Active for the heating mode Par. 1 = 0 o 3
Limits the minimum value that can be assigned to the
23 set-point in heating mode (does not apply to heating
mode 4).
Limits the maximum value that can be assigned to the
24 set-point in heating mode (does not apply to heating
mode 4).
Delivery Temp.
(°C)
Par. 24
Par. 03
Par. 23
Mode 1
(Climatic functioning with room/heat demand thermostat, vari-
able set point according to the outdoor temperature)
In this case the thermal module operates with a variable set-
point depending on outdoor temperature based on a climatic
61.5 °C
curve defined by the following parameters:
" "
Par.
No.
185
109
190
19
20
21
22
23
24
25
Parameter 109 Comp. T. @ T.ext. Max
Tset max (°C)
During in-between seasons, when the external temperature
gets close to the maximum limit set in Par. 22, the delivery tem-
perature calculated in the climatic curve could be different from
Setpoint the one suitable to meet the request. This parameter performs
a non-linear correction of climatic curve to compensate such
difference.
Tset min (°C)
Outdoor Temp. (°C)
The demand is activated when the room/heat demand thermo-
stat's contact is closed provided that outdoor temperature does
not exceed the value set by the parameter 25.
if the outdoor temperature is higher than the one set on param-
eter 25 , the burner is stopped even if there is a heat demand.
The climatic curve can also be adjusted in a simpler, more us-
er-friendly way.
53
COMMISSIONING AND MAINTENANCE
Description
Parallel shift of direct Zone/Zone 1 climatic curve
Delivery temperature compensation at maximum
external temperature in climate mode (Par. 1 = 1 or 2).
Outdoor temperature compensation factor
Establishes the max. set-point at the minimum out-
door temperature for climatic regulation
Establishes the minimum outdoor temperature to
which the maximum set-point can be associated for
climatic regulation
Establishes the minimum set-point at the maximum
outdoor temperature for climatic regulation
Establishes the maximum minimum outdoor tem-
perature to which the minimum set-point can be
associated for climatic regulation
Limits the minimum value that can be assigned to
the set-point in heating mode (does not apply to
heating mode 4).
Limits the maximum value that can be assigned to
the set-point in heating mode (does not apply to
heating mode 4).
Defines the temperature at which climatic regulation
is switched off
Delivery Temp.
(°C)
Par. 24
Par. 19
Par. 21
Par. 23
Par. 20 Par. 22
Tset max (°C)
Par. 109
Tset min (°C)
Par. 25
Outdoor Temp. (°C)