7. SOLAR
Pressure monitoring
NOTE:
The pressure monitoring function will only work when an RPS type Grundfos Direct
Sensor™ is connected.
Solar / Opt. functions / Add new function / Pressure monit.
Adjustment
Description
channel
Sensor
Pressure sensor selection
Low pressure
Low pressure monitoring option
On
Switch-on threshold
Off
Switch-off threshold
Shutdown
Shutdown option
Overpressure
Overpressure monitoring option
On
Switch-on threshold
Off
Switch-off threshold
Shutdown
Shutdown option
Funct.
Activation / Deactivation
Sensor
Switch input selection
This function can be used for detecting overpressure or low pressure conditions inside the system,
and if necessary to shut down the affected system components in order to avoid system damage.
Low pressure
If the system pressure falls below the adjustable switch-on value On, an error message will appear.
If the Shutdown option has been activated for the low pressure monitoring function, the solar
system will be shut down as well in case of a fault condition.
When the pressure reaches or exceeds the adjustable switch-off value Off, the system is
switched on again.
NOTE:
For the Low pressure monitoring function, Off always is at least 0.1 bar higher than
On. The corresponding adjustment ranges will automatically adapt to that.
Overpressure
If the system pressure exceeds the adjustable switch-on value On, an error message will appear.
If the Shutdown option has been activated for the overpressure monitoring function, the solar
system will be shut down as well in case of a fault condition.
When the pressure reaches or falls below the adjustable switch-off value Off, the system is
switched on again.
NOTE:
For the Overpressure monitoring function, On always is at least 0.1 bar higher than
Off. The corresponding adjustment ranges will automatically adapt to that.
7.3
FUNCTION CONTROL
Solar / Function control
NOTE:
Only if the installer code is entered (see page 173), will the function control menu be
available.
Adjustment
Description
channel
DT too high
DT monitoring option
Night circulation
Night circulation monitoring option
FL/RL interch.
FL / RE interchange monitoring option
Stmax
Maximum store temperature monitor-
ing option
Store
Store selection
Adjustment
Factory setting
range / selection
Ga1, Ga2
-
Yes, No
No
0.0 ... 9.7 bar
0.7 bar
0.1 ... 9.8 bar
1.0 bar
Yes, No
No
Yes, No
No
0.3 ... 10.0 bar
5.5 bar
0.2 ... 9.9 bar
5.0 bar
Yes, No
No
Activated, Deacti-
Activated
vated, Switch
-
-
Adjustment
range / selec-
Factory setting
tion
Yes, No
No
Yes, No
No
Yes, No
No
Yes, No
Yes
system de-
system depend-
pendent
ent
139