Weberman GPA 25-6 180 Installation And Operation Manual page 23

ENG
WARNINGS
!
Installation, wiring and adjustment of the pump must be performed by persons with
the corresponding qualifi cation, in agreement with guidelines, norms and laws valid
in the country where the equipment is installed. A failure to observe regulations
and guidelines specifi ed in the manual results in a loss of warranty and exempts
the manufacturer from responsibility for all damages caused to persons or objects.
SCOPE OF APPLICATION
The pump is designed as a circulating pump to be installed in hot-water heating net-
works in agreement the specifi ed technical parameters. Avoid mixing hydrocarbon-
derived additives. Antifreeze max. 30%. Provide anti-scale system in domestic water
circulating units where the water hardness TH is higher than 15°F.
WARNINGS:
!
INSTALLATION:
On supply or return piping. Two cut-off valves for easy maintenance and operation
are necessary. Inlet strainer is mandatory.
NOTICE: The pump must be installed with the shaft axis in the vertical position.
The pump is designed as a circulating pump
to be installed in hot-water heating networks,
pumping other fl ammable or explosive liquids is
prohibited. Temperature of pumped liquid must
be higher than ambient temperature to avoid
water condensation in stator. Always check
min. inlet pressure, up to liquid temperature as
shown in "Technical parameters" section.