Checks During And After Initial Start-Up - Grundfos UPM3 FLEX AS 15-25/130 H12T Manual

Display
LED 1 red and LED 5 yellow,
both lit
LED 1 red and LED 4 yellow,
both lit
LED 1 red and LED 3 yellow,
both lit
Setting mode
A) Setting display
To switch from performance display to setting display,
press button (1). The LEDs shows the current setting. See
the following table for the meaning of the LED display.
Setting display mode shows the type of pump control or
the currently selected pump curve. Settings cannot be
changed in performance display mode. After 2 seconds,
the display returns to performance display mode.
LED 1
red
(4 m)
1
2 (5 m)
*
(6 m)
3
4 (7 m)
(*) factory setting
B) Button lock function
The button lock function serves to prevent improper use
or accidental changes to pump settings.
When the button lock is active, pressing the button has
no effect. This prevents users from accidentally access-
ing setting mode while allowing them to use setting
display mode.
Press and hold the button for more than 10 seconds, to
activate / deactivate the button lock.
When the button is held down for 10 seconds, all the
LEDs except the red LED flash for one second to indi-
cate that the button lock function has been activated/
deactivated.
C) Setting mode
To access setting mode, press and hold the button (1)
for between 2 and 10 seconds. The button lock must
be deactivated in order to change settings. Available
settings are displayed in a pre-defined sequence that
is repeated every time the button is briefly pressed
and released. If the button is not pressed for over 10
seconds, the pump exits setting mode and returns to
performance display mode. The last settings made are
saved in memory. See the table above for the meanings
of the LED sequences.
Meaning Function
The pump rotor is The pump automatically attempts
blocked. to start every 1.5 seconds.
Supply voltage too Indication only. The pump contin-
low. ues to function.
Electronic controller The pump has stopped because
error. supply voltage is too low or be-
cause an error has occurred in the
internal electronic controller.
LED 2 LED 3 LED 4 LED 5
yellow yellow yellow yellow
PERFORMANCE
SELECTED SETTING
2 s.

CHECKS DURING AND AFTER INITIAL START-UP

Once the system has been started up, perform the
following checks.
− Make sure that the pump is free and rotates in
the right direction.
− The interruption and the consecutive ignition of
the burner, acting on the boiler thermostat, with
the heating system that does not require heat
(not working)
− The stop of the combination "boiler - storage
tank" (if applied) placing the main switch on
"off".
8 8
Action
Wait or check that the
pump rotor is free to ro-
tate.
Check the voltage of the
power supply.
Check the voltage of the
power supply or replace
the pump.
SETTING MENU
> 10 s.
> 2 s.
X
10 s.