Oilon VSi 6-14, Installation And Operation Manual

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Connecting DHW recirculation, VMi ver. 1
● Make the connections as indicated in the piping diagrams supplied with the unit.
Optional accessories
● Regulating valve
● Actuator for the regulating valve
● Water temperature regulation (feature)
2.6.8 Speed control for heating circuit pumps
UPM3 auto ver. 1
Each heating circuit requires its own Grundfos UPM3 AUTO circulation pump. The
pump has three operating modes: Proportional pressure control, Constant pressure
control and Constant curve control. By default, the pump operates in proportional
pressure mode 3.
If a radiator system is used and a high flow rate causes noise in the pipes, you can
reduce the noise by using constant pressure mode 1 or 2.
Check the pump’s current operating mode by pressing the pump’s button briefly.
Proportional
pressure mode
LED1
Green
LED2
Green
LED3
Yellow
LED4
Yellow
LED5
Yellow
Proportional
pressure mode 1
X X
Proportional
pressure mode 2
X X X
Proportional
pressure mode 3
X X X X
Auto
Adapt
X
20 (70) M8011 2204EN