Verify Electrical Requirements; Pumped Liquid Requirements - Grundfos UP XL Série Notice D'installation Et De Fonctionnement

4.3 Verify electrical requirements

Verify the electrical supply to be certain the
voltage, phase and frequency match that of the
pump motor. The proper operating voltage and
other electrical information can be found on the
pump nameplate.
This pump's motor is designed to run on ± 10 %
of the nameplate-rated voltage.

4.4 Pumped liquid requirements

Warning
The Grundfos Small UP/UPS pump is
intended for use with water only. The
pump must not be used for the
transfer of flammable liquids such as
diesel oil, gasoline, and similar
liquids.
The pump is not for pool or marine
use.
The pump can be used to circulate:
• Potable hot water.
• Water containing glycol for hydronic heating
(see section 9. Additional technical data
additional limitations).
• Cooling water.
In domestic hot-water systems it is advisable to
use stainless steel pump housing versions of
this pump.
All pump types (stainless, bronze or cast iron
pump housing) should not be used in water with
a degree of hardness lower than 14 grains per
gallon of hardness.
Fluids should be clean and should not contain
solid particles, fibers, or mineral oils.
If the pump is installed in a heating system, the
water should meet the requirements of accepted
standards on water quality in heating systems.
The fluid should not contain solid particles,
fibers, or mineral oils.
The pump is lubricated and cooled by the liquid
being pumped. Therefore, the pumped liquid
must always be allowed to circulate through the
pump.
Extended periods without circulation will cause
premature wear to the bearings and excessive
motor heat.
The pumped liquid must meet the temperature
requirements listed in the following charts.
Fluid must never be allowed to freeze
Note
during non-operational periods.
(domestic, potable hot water)
Min.
Max. < 149 °F (65 °C)
In domestic hot-water systems, it is
recommended to keep the liquid
Caution
temperature below 149 °F (65 °C) to
eliminate the risk of lime precipitation.
(non-potable heating or cooling airless
Pump
models
for
Min. All
UPS 26-150
Max. UPS 43-100
UPS 50-60
Water and glycol mix
Max. 50 % glycol at 15 °F (-9.5 °C) liquid
(Hydraulic performance change can be
expected.)
Open systems
Fluid Ambient
36 °F (2 °C) 33 °F (1 °C)
100 °F (38 °C)
Closed systems
fluid)
Liquid Ambient
36 °F
(2 °C)
230 °F
(110 °C) (38 °C)
230 °F
(110 °C) (38 °C)
212 °F
(100 °C) (38 °C)
33 °F
(1 °C)
100 °F
100 °F
100 °F
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