Technical Data; Operating Conditions; Disposing Of The Product - Grundfos UPM3 Installation And Operating Instructions Manual

12. Technical data

12.1 Operating conditions

12.1.1 Ambient and liquid temperature
The ambient and liquid temperature of the specific pump is indicated in the table below. The ambient temperature is measured in a distance of
not more than 5 cm in front of the front foil at its lower edge.
Standard variants
GFNHB
GFNKB
GFNKC
Flammable refrigerant
environment variants
GFNHF
GFNKG
GFNKH
The above-mentioned temperature ranges do not take temperature limitations of the drinking water approvals into account.
• UPM3, IP44 above dew point of ambient air: min. 2 °C
• UPM3, IP4XD as K version with drain hole: min. -10 °C.
Related information
10. Storing the product
12.1.2 Relative humidity
IP44: The relative humidity must not exceed 95 % in a non-
condensing environment.
The dew point of the air at ambient temperature should al-
ways be lower than the liquid temperature, otherwise con-
densation may form in the stator housing.
K-Version/IPX4D: Condensation is acceptable.
12.1.3 Minimum inlet pressure
To avoid cavitation noise and damage to the pump bearings, the
following minimum pressures are required at the pump inlet port.
Liquid temperature 75 °C
0.005 MPa
Pressure
0.05 bar
20
55 °C ambient at
95 °C liquid tem-
perature
UPM3S
UPM3
UPM3L ●
UPM3S ●
UPM3 ●
UPM3L ●
95 °C 110 °C
0.05 MPa 0.108 MPa
0.5 bar 1.08 bar
70 °C ambient at 70 °C ambient at
65 °C liquid tem- 110 °C liquid
perature temperature
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13. Disposing of the product

This product or parts of it must be disposed of in an environmentally
sound way.
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company or
service workshop.
The crossed-out wheelie bin symbol on a product
means that it must be disposed of separately from
household waste. When a product marked with this
symbol reaches its end of life, take it to a collection
point designated by the local waste disposal authori-
ties. The separate collection and recycling of such
products will help protect the environment and human
health.
See also end-of-life information at
recycling.
60 °C ambient at
95 °C ambient
130 °C liquid
temperature
temperature
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