Wilo Stratos ECO 30/1-5, Installation And Operating Instructions Manual, Page: 21 / 141

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Installation and operating instructions Wilo-Stratos ECO 21
4.2 Fluids:
• Heating water according to VDI 2035,
• Water and water/glycol mixtures in mixing ratio up to 1:1.
If glycol is added, the delivery data of the pump must be
corrected according to the higher viscosity, depending on the
percentage mixing ratio.
• Wilo's approval must be obtained for use of other media.
4.3 Scope of delivery
• Circulation pump, complete
• Installation and operating instructions
5 Description and function
5.1 Description of the pump
Pump (Fig. 1)
The circulation pump is equipped with a wet-running motor.
The
Stratos ECO-Z (-BMS) circulation pump is specially
designed for the operating conditions in drinking water/
process water circulation system. Because of the choice of
materials and design, it is corrosion-resistant to all the
constituents in the drinking water.
The pump housing is clad with an
insulating shell ( not ST) for
heat insulation.
An electronic control module (item 1) is located on the motor
housing, which controls the differential pressure of the pump
to an adjustable value between 1 and 3 m or 1 and 5 m.
Therefore, the pump adapts continuously to a changing out-
put demand of the installation, as occurs with the use of
thermostatic valves in particular.
The
Stratos ECO-L 25/1-5 pump is a ventilation pump. It is
equipped with a ventilation housing, on which a commercially
available rapid ventilation valve can be mounted. After undo-