Parameters' List - Riello TAU Unit 50 Installation And Maintenance Manual

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2.15.2

Parameters' list

9
The programming lines can be hidden, according to the access level (User, Installer, Manufacturer) and to the thermal unit
configuration.
9
The parameters of the Installer and Manufacturer levels should only be changed by Technical Assistance Service
Parameters are listed base on the reference menu.
Reference Menu
M1
Parameters Menu
M2
Cascaded module configuration menu
M3
Cascaded boiler configuration menu
M4
Appliance configuration menu
Nr. dis-
Par.
Menu
played
No.
Display
Defines the thermal module's various heating
operation modes.
0 = Fixed setpoint with ambient thermostat
1 = Climate mode with external probe and ambient
thermostat
M1
1
CH mode
2 = Climate mode with continuous operation and
reduction with ambient thermostat
3 = Fixed setpoint with continuous operation and
reduction with ambient thermostat
4 = Adjust Setpoint with 0-10V input
5 = Adjust power with 0-10V input
CH set-
It defines the desired delivery temperature with
M1
3
point
heating mode (Par. 1 = 0).
Calc.
M1
185
Set-point
Parallel shift of direct Zone/Zone 1 climatic curve
Off-set
Delivery temperature compensation at maximum
Comp. T. @
M1
109
external temperature in climate mode (Par. 1 = 1 or
T.ext. Max
2).
CH Min. Set-
It defines the minimum delivery temperature value
M1
110
point
in heating mode (Par. 1 = 4).
CH Max.
It defines the maximum delivery temperature value
M1
111
Set-point
in heating mode (Par. 1 = 4).
Outd Comp
M1
190
Outdoor temperature compensation factor
Fact
Sets the overrun time in seconds of the boiler's
Boiler Pump
circulator during stand-alone operation; cascaded
M1
5
Overrun
operation determines the module's overrun after
switch-off due to temperature control.
Sets the activation temperature when the maxi-
mum flue gas temperature is exceeded. When the
flue gas temperature is higher than a set value,
the module switches off and an error message is
Flue Temp.
M1
6
generated. When the flue gas temperature is in
Limit
the interval between (Par. 6) -5°C and Par. 6, the
module reduces its power in a linear way until it
reaches minimum power when the temperature
measured is equal to Par. 6.
Sets the value in degrees beyond the set-point at
CH Hyster-
M1
7
which the burner switches off for thermoregula-
esis
tion.
Sets the value in degrees below the set-point at
CH Hystere-
M1
112
which the burner switches on again for thermoreg-
sis Down
ulation.
Sets the stand-by time before the appliance is
switched on again after it switches off due to
Anti-cycle
M1
9
thermoregulation, independently from the delivery
Period
temperature dropping below the value indicated in
Par. 10. Parameter valid only in stand-alone mode.
Sets the value in degrees below which the burner
Anti-cycle
M1
10
switches on again notwithstanding from the time
Temp. Diff.
spent at Par. 9.
Access type
U
I
O
Description
33
End user
Installer
Manufacturer
Default set-
Range
ting
0...5
0
Par. 23...Par. 24
70
-10...10
0
Off, -10...10
0
20...50
30
50...90
80
0...100
50
0...900
60
10...120
90
0...20
3
0...20
5
10...900
120
0...20
16
INSTALLATION
R
.
Access
UM
Category
type
I
Heating
°C
U
Heating
I
Heating
I
Heating
°C
I
Heating
°C
I
Heating
%
I
Heating
Sec.
I
Heating
°C
O
General
°C
I
Heating
°C
I
Heating
Sec.
I
Heating
°C
I
Heating

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