Lowara Ecocirc OEM Installation And Operating Instructions Manual page 24

For technical reasons, the contact surface between the rotor and the
ceramic ball bearing in spherical motor pumps is very small. For this
reason, even if they have not been in operation for a long time, such as
after the summer, only a small amount of torque is required to start the
pump. ECOFLOOR pumps do not require (and thus do not have) a
release/vent screw.
A temperature sensor is integrated into the ECOFLOOR pumps,
depending on the type fixed setted to 55C or 45°C, which turns off the
pump when reaching the preset temperature, and turns it on automatically
after cooling down. ECOFLOOR pumps are especially capable for floor
heating systems. This temperature sensor is acc. To DIN 1264/4.
ECOFLOOR pump has two standard and two auxiliary operation modes:
Constant Speed (∆
Proportional Pressure (∆
Automatic Air Purge
Standby
Instructions to change between operation modes:
- To change between standard operation modes (proportional pressure
(∆pv) and constant speed (∆
end position and turn the knob back to the desired setting within 5 sec.
Pump indicates mode change by switching the color of the knob LED
(proportional pressure (∆pv) is blue and constant speed (∆pc) is white). In
both cases the light is constant.
- To activate the air purge function the user shall turn the knob until the low
end position and wait at least 5 seconds before turning the knob back to
the desired setting. For air purge indication see section 9. After air purge
cycle finishes (approximately 10 minutes) the pump will return to the
previous standard operating mode.
The user can set the speed of the pump by turning the
=
pc)
knob into any position between 1 and 7, 7 is the
fastest. The preset speed re-mains constant,
independently from the flow.
= The user can set the maximum strength of
pv)
the pump by turning the knob into any
position between 1 and 7, 7 is the strongest.
The pump automatically decreases its speed
at low flow, thus providing energy saving.
= The user can purge the trapped air from the
pumphouse.
= The user can keep the power consumption
low (<1W) when pump operation is not
needed.
) the user shall turn the knob until the low
pc)
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