Riello TAU Unit 50 Installation And Maintenance Manual page 38

INSTALLATION
Nr. dis-
Par.
Menu played
No.
Display
Activates bleeding the system's air. To activate air
bleeding, it is necessary to switch on the boiler
and change the parameter from "No" to "Yes".
Wait for one minute. Switch off and restart. At this
stage, when it is restarted the boiler will initiate
the automatic bleeding procedure (lasting around
M1 139 Dair active
20 minutes). With the parameter set to "Yes", the
procedure is carried out each time the boiler is
switched off and restarted using its master switch.
The value must be set to "No" if you do not wish to
initiate the bleeding procedure when the thermal
module is switched on.
Defines the flow rate below which the boiler is
Minimum
switched off. The value varies depending on the
M1 140
Flow
model.
Anti-Le- Sets the weekday on which the anti-Legionella
M1 107
gionella day procedure is carried out.
Anti-Le-
Sets the time of the day during which the anti-Le-
M1 108 gionella
gionella procedure is carried out.
Hour
Defines the delivery temperature below which the
thermal unit pump and the system pump (with
cascade configuration) are activated if. If the tem-
perature of one of the delivery sensors (excluding
Frost Pro- the zone sensors) falls another 5 degrees below
M1 155
tection the value set by Par. 155, then a request to activate
the cascade is generated. When the temperature of
the primary sensor reaches five degrees above the
value defined by Par. 155, then the request ceases
and the cascade returns to stand-by mode.
If the temperature outside is below the value set
Frost pro- in this parameter, the thermal unit pump (PC), the
M1 186
tection out system pump (PS), and the central heating system
pump (PI) are activated
Burner
M1 189 Not usable
Address
M1 191 Fan Type Defines the type of fan installed in the thermal unit
Enables control of the additional heating zone
Dep. Zone managed by the Depending thermal unit
M1 205
Control 0 = Disabled
1 =Enabled
Activates the emergency mode. This mode comes
on when communication between Managing and
Permit
the primary circuit's probe is lost. In this event,
M2 72 Emergency
if Par. 72 is set to "Yes", the cascade is initiated,
Mode
working to the fixed set-point determined by Par.
74.
Emergency
M2 74 Set-point active in emergency mode.
Set-point
Delay Per
Defines the stand-by time in seconds to restart the
M2 75 Start Next
subsequent cascade module in normal start mode.
Mod.
Delay Per
Defines the stand-by time in seconds to switch off
M2 76 Stop Next
the last cascade module on in normal Off mode.
Mod.
Delay Quick Defines the stand-by time in seconds to restart the
M2 142
Start Next next cascade module in quick start mode.
Delay Quick Defines the stand-by time in seconds to switch off
M2 143
Stop Next the last cascade module on in Quick Stop mode.
Description
38
Default set-
Range
ting
Yes
No
No
Depends on
0.0...100
boiler model
Sunday...
Sunday
Saturday
0...23 0
10...30 15
-30...15 5
- -
Do not
Changes
change. Use
based on the
permitted only
configuration
to authorised
of Par. 97
service centres
0...1 0
Yes
Yes
No
20...70 70
5...255 120
5...255 30
5...255 60
5...255 15
Access
UM Category
type
I General
l/min I General
Day I DHW
Time I DHW
°C I Cascade
°C I Cascade
- Cascade
I General
U General
U Cascade
°C I Cascade
Sec. I Cascade
Sec. I Cascade
Sec. I Cascade
Sec. I Cascade