Wilo TOP-S Instrucciones De Instalación Y Funcionamiento página 22

ENGLISH
– Flow media:
– Drinking water and water for food enterprises
(TOP-Z pumps only) acc. the European drin-
king water directive. According to the German
drinking water regulation 2001, pump hou-
sings in bronze (CC 491K) have to be used in
systems.
– Heating water acc. to VDI 2035
– Temperature range of the flow medium:
Flow medium:
Heating water acc. to
VDI 2035
Water and
water-glycol
mixture of a ratio of up
to 1:1
Drinking water
x: Admissible flow medium
X: Inadmissible flow medium
– Max. ambient temperature: 0°C up to +40°C.
– The max. surface temperature of the pump will
not exceed +160°C.
– Max. pump operating pressure: see rating plate.
– Protection category IP 44.
18
TOP-S/-SD
x
–20°C to +130°C
(short term (2h): +140°C)
X
– Water and water/glycol mixtures in a ratio of
up to 1:1. In the case of glycol admixtures the
pumping data are to be corrected according
to the higher viscosity, depending on the per-
centage mixture ratio. Only brand products
with anticorrosion inhibitors should be used.
The manufacturer's instructions must always
be strictly adhered to.
– If other media are used, release by Wilo is
required.
TOP-Z
x
–20°C to +110°C
x
up to 24 °e: max. +80 °C
(short term(2h): +110 °C),
TOP-Z20/4, TOP-Z25/6:
up to 22 °e: max. +65 °C
(short term (2h): +80 °C)
– Minimum inlet pressure at the pump suction side
in order to prevent cavitation noises at an am-
bient temperature of +40°C and a water tempe-
rature of T :
max.
TOP-D
x
–20°C to +130°C
(short term (2h): +140°C)
X