Description And Function - Wilo Stratos PARA Serie Einbau- Und Betriebsanleitung

English
5.2.2 Permitted fluids
The high-efficiency pumps of the Wilo-Stratos PARA/-Z series are approved for the cir-
culation of heating water (in accordance with VDI 2035/VdTÜV 1466).
CAUTION! Risk of personal injury and material damage!
Non-approved fluids can damage the pump and also cause injury.
• The pump manufacturer's approval must be obtained for the use of other fluids, such
as water-glycol mixtures.
•
The relevant safety data sheets and specifications of the manufacturer (e.g. regarding
mixing ratios) must be observed without fail!
• Approved additives are to be mixed to the fluid on the pressure side of the pump, even
if this is contrary to the recommendations of the additive manufacturer!
NOTICE: If glycol is added, the delivery data of the pump must be corrected according to
the higher viscosity, depending on the mixing ratio percentage (max. mixing ratio for
water-glycol mixture 1:1).
Changing, refilling and replenishing fluids
When changing, refilling or replenishing the fluid with additives, the entire pump is to be
dismantled.
CAUTION! Risk of material damage!
When changing, refilling or replenishing the fluid with additives, there is a risk of
material damage caused by chemical reactions (e.g. the bearings can seize). The pump
is to be flushed separately for a sufficient amount of time to ensure the old fluid has
been completely removed from the interior of the pump.
5.3 Scope of delivery
Pump complete
• Mains and optional control cable connected to the pump at the factory
• Installation and operating instructions
5.4 Accessories
Accessories must be ordered separately:
• Two-piece thermal insulation shell
• Material:
• Thermal conductivity: 0.04 W/m as per DIN 52612
• Flammability:
• "Cooling Shell" cold water insulation for pump
See catalogue for a detailed description.

6 Description and function

6.1 Description of the pump
The Wilo-Stratos PARA/-Z high-efficiency pumps are glandless pumps with integrated
differential pressure control and ECM technology (Electronic Commutated Motor).
Depending on the equipment variant "T..." (see following table), the pump can either be
supplied with the "Red button" operating element (Fig. 1a), or without an operating ele-
ment in the case of external control (Fig. 1b).
32
EPP, polypropylene foam
B2 class as per DIN 4102, FMVSS 302
WILO SE 12/2017