Grundfos MAGNA3 40-80 F (N) - FLOWLIMIT Function Setup; Automatic Night Setback Function

English (GB)
31
8.6.5 "
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Navigation
"+RPH" > "6HWWLQJV" > ")/2:/,0,7"
"FLOW
LIMIT
"
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•"6HW)/2:/,0,7".
Setting:
1. To enable the function, select "$FWLYH" with or and press
[OK].
2. To set the FLOW
LIMIT
, press [OK].
3. Select digit with and and adjust with or .
4. Press [OK] to save.
Fig. 46 FLOW
LIMIT
You can combine the FLOW
LIMIT
function with the following
control modes:
•"3URSSUHVV"
•"&RQVWSUHVV"
•"&RQVWWHPS"
•"&RQVWDQWFXUYH".
A flow-limiting function ensures that the flow never exceeds the
entered FLOW
LIMIT
value.
The setting range for FLOW
LIMIT
is 25 to 90 % of the Q
max
of the
pump.
The factory setting of the FLOW
LIMIT
is the flow where the
AUTO
ADAPT
factory setting meets the maximum curve. See fig.
36.
8.6.6 "
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Navigation
"+RPH" > "6HWWLQJV" > "$XWRPDWLF1LJKW6HWEDFN"
"
$XWRPDWLF1LJKW6HWEDFN
"
To enable the function, select "$FWLYH" with or and press
[OK].
Once you have enabled automatic night setback, the pump
automatically changes between normal duty and night setback,
i.e. duty at low demand. The changeover depends on the
flow-pipe temperature.
The pump automatically changes over to night setback when the
built-in sensor registers a flow-pipe temperature drop of more
than 10 to 15 °C within approximately two hours. The temperature
drop must be at least 0.1 °C/min.
Changeover to normal duty takes place without a time lag when
the temperature has increased by approximately 10 °C.
You cannot enable automatic night setback when the pump is in
constant-curve mode.
3.1.5.0.0.0 FLOW
LIMIT
TM05 2445 1212
H
Q
Q
max
Q
limit
90 %
Q
max
25 %
Setting range
3.1.6.0.0.0 $XWRPDWLF1LJKW6HWEDFN