Danfoss Akva Lux II VXe Instructions For Installation And Use Manual page 19

» For flexible use in appliances without PWM
speed control with 4 speeds
» or in applications with externally controlled
signal with standard PWM profile A for 4 MAX
curves
Instructions for installation and use
Exceeding benchmark level of the Ecodesign
13. HEATING CIRCUIT, PUMP
requirements in 2015, EEI ≤ 0.20 EN16297/3
Check the pump setting by pressing the button once (one constant
pessure). The LEDs will briefly (2 sec.) show the pump setting before
changing back to showing the power consumption.
See fig. 3 - Pump setting view.
SETTING VIEW
PWM PROFILE A: 4M
PWM PROFILE A: 5M
PWM PROFILE A: 6M
PWM PROFILE A: 7M
If the pump setting does not give the desired distribution of heat in
the rooms of the house, change the pump setting.
See fig. 4 - Recommended pump settings.
Before starting the setting, make clear what the display should
show for the new setting (see fig. 3).
To change the pump setting, choose the setting you want (see fig
3), press the button down for more than 2 seconds (less than 10)
and the pump switches to setting selection, the LEDs start flashing
and display the current setting. Then press the button until the LEDs
shows the desired setting. The LEDs flash and when they stop the
new setting is saved. The LEDs return to show power cunstumption.
Please note that if the LEDs do not flash after 2 seconds, possibly
the pump setting is locked. To unlock, press the button down for
more than 10 seconds. LEDs will flash and the pump is unlocked.
To lock the pump, repeat the procedure.
For more information, se enclosed Grundfos instructions.
Alarm status
In case the 1st LED is red the pump has detected one or more alarms.
See fig. 5 - Alarm status. When there is no active alarm anymore
the user interface switches back to operation mode shortly and then
showing power consumption.
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Akva Lux II VXe
Fig. 3. Pump setting view
PROP. PRESS.: CURVE 1
PROP. PRESS.: CURVE 2
PROP. PRESS.: CURVE 3
PROP. PRESS.: AUTO
CONST. PRESS.: CURVE 1
CONST. PRESS.: CURVE 2
CONST. PRESS.: CURVE 3
CONST. PRESS.: AUTO
CONST. CURVE: CURVE 1
CONST. CURVE: CURVE 2
CONST. CURVE: CURVE 3
CONST. CURVE: CURVE 1
Fig. 4. Recommended pump settings
Application
Radiator
two-pipe system
Radiator
one-pipe system
Floor heating
Ventilation
Domestic hot water* 1. Constant curve mode, speed 1-2-3-4
Fig. 5. Alarm status
Function
Blocked
Supply voltage low
Electrical error
© Danfoss | Produced by Danfoss Redan A/S | 2021.02 | 19
SETTING VIEW
ADAPT
ADAPT
UMP3 15-70 AUTO
Recommended pump mode
1. Auto adapt proportional pressure mode
2. Proportional pressure mode
1. Constant curve mode, speed 1-2-3-4
2. Constant pressure mode
1. Auto adapt, Constant pressure mode
1. Constant curve mode, speed 1-2-3-4
2. Constant pressure mode
* Bronze or stainless steel pump housing
Red Yellow Yellow Yellow Yellow