Intended Use And Misuse; Heating Fluids; Use In Applications With Coolants - Wilo Stratos PARA-C Einbau- Und Betriebsanleitung

–
-25 °C ... +70 °C
• Permitted relative humidity during transport:
–
+5 % ... 95 %
• Store in original packaging.
• Storage of pump with horizontal shaft on a horizontal surface. Observe the packaging icon
• Storage must not exceed the six-month period.
• Permitted temperature range during storage:
–
-20 °C ... +60 °C
• Permitted relative humidity during storage:
–
+5 % ... 95 %
4

Intended use and misuse

WARNING
The Wilo-Stratos PARA-C series do not meet the requirements of the ATEX directive and are
not suitable for use in ATEX applications!
4.1

Heating fluids

The high-efficiency circulators in the Wilo-Stratos PARA-C series are exclusively intended for circulating
fluids in hot-water heating systems and similar systems, including solar installations, with constantly chan-
ging volume flows.
Permitted fluids:
• Heating water in accordance with VDI 2035 Part 1 and Part 2, within the following limits:
–
Electrical conductivity in the range of 10 µS/cm to 100 µS/cm
–
pH value in the range of 8.2 to 10.0
• Water-glycol mixtures, max. mixing ratio of 1:1. If glycol is added, the pumping data of the pump must be
corrected according to the higher viscosity, depending on the mixing ratio percentage.
4.2

Use in applications with coolants

The Wilo-Stratos PARA-C can be used as a device in heat pumps or air-conditioning systems designed in
accordance with IEC 60335-2-40. The permitted flammable refrigerants are limited to those listed as com-
patible according to IEC 60335-2-40:2018-01.
Coolant
Name
R-32
R-50
R-142b
R-143a
R-152a
Installation and operating instructions • Wilo-Stratos PARA-C/-CZ • Ed.01/2023-04
Safety class Max. permissible
surface temper-
ature according to
IEC 60335-2-40:20
18-01
(°C)
A2L 700
A3 545
A2L 650
A2L 650
A2 355
Stratos PARA-C
Pictogram on the pump:
Compatible
not permitted
not permitted
not permitted
not permitted
en
(top).
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