2. Product introduction
2.1 Product description
UPM3 are speed-controlled, high-efficiency pumps fitted with an
electronically commutated motor (ECM) with permanent-magnet
rotor and frequency converter. They are either externally controlled
by digital pulse-width modulation (PWM) low-voltage signal, LIN bus
signal or internally controlled in constant pressure, proportional
pressure or constant speed mode defined by a smart operating
panel or factory presetting.
2.2 Pumped liquids
CAUTION
Flammable material
Minor or moderate personal injury
‐ Do not use the pump for flammable liquids, such as
diesel oil and petrol.
CAUTION
Corrosive substance
Minor or moderate personal injury
‐ Do not use the pump for aggressive liquids, such as
acids and seawater.
Frost protection fluids may contain substances that can
harm the terminal box material. Grundfos recommends
shielding the terminal box from exposure to the frost pro-
tection fluids.
The product is suitable for the following:
• Clean, thin, non-aggressive and non-explosive liquids, not
containing solid particles or fibres.
• In heating systems, the water must meet the requirements of
accepted standards on water quality in heating systems, for
example the German standard VDI 2035.
• The pH must be between 8.2 and 9.5. The minimum value
depends on the water hardness and must not be below 7.4 at 4
°dH (0.712 mmol/l).
• The electrical conductivity at 25 °C must be ≥ 10 microS/cm.
• Mixtures of water with antifreeze media such as glycol with a
kinematic viscosity lower than 10 mm
2
/s (10 cSt). When
selecting a pump, the viscosity of the pumped liquid must be
taken into consideration. If the pump is used for a liquid with a
higher viscosity, the hydraulic performance of the pump is
reduced.
• Solar media used in typical solar thermal systems containing up
to 50 vol. % of antifreeze media.
For drinking water use, approved housings must be used, such as
CIL3 PPS or stainless steel N. These pumps are WRAS (UK) and
ACS (FR) approved, and the materials in contact with drinking
water comply with the applicable evaluation criteria issued by UBA
(DE).
In domestic hot-water systems, the pump must be used only for
water with a degree of temporary hardness of less than 3 mmol/l
CaCO3 (16.8 °dH). To avoid lime problems in hard water, the liquid
temperature must not exceed 65 °C.
The water quality of test beds for the final production tests of
complete heating appliances including pump must be observed to
avoid calcification or biofilm formation during a longer storage
period.
2.3 Identification
2.3.1
Type key
Example: UPM3 SOLAR 15 - 145 130 C A X 9 XXX
Code
Explanation Designation
UPM3 Standard
Pump type
UPM3S Small version with IMM rotor
UPM3L Large version with extended P1
UPMO
For ErP upgrade and replace-
ment
Code Explanation Designation
F
For flammable refrigerant envi-
ronments
Control variant
K Cold water
FLEX AS PWM A, MAX
SOLAR PWM C, CC
DHW PWM A, MAX
AUTO PP, CP, CC, AA
HYBRID PWM A/C, PP, CP, CC, AA
LIN LIN bus
Code Explanation Designation
15 R 1/2" / G 1"
Nominal
diameter
25 R 1" / G 1 1/2"
32 R 1 1/4" / G 2"
Code Explanation Designation
20 2 m
Maximum head
40 4 m
50 5 m
60 6 m
70 7 m
75 7.5 m
105 10.5 m
145 14.5 m
Code Explanation Designation
130 Cast iron CED, 130 mm
Pump housing
180 Cast iron CED, 180 mm
N 130 Stainless steel, 130 mm
N 150 Stainless steel, 150 mm
N 180 Stainless steel, 180 mm
GGES2
Cast iron CED, end suction
UPM3
GGAOS3 Cast iron CED, AOS3 UPM3
GGMBP3 Cast iron CED, GGMBP3 UPM3
GGBP3 Cast iron CED, GGBP3 UPM3
CIL3PA Composite CIL3, PA6.6 UPM3
CIL3PP Composite CIL3, PPS UPM3
CIAO2A Composite CIAO2 AC
CIAO2 Composite CIAO2
CESAO1 Composite CESAO1
CESAO2 Composite CESAO2
CESAO4 Composite CESAO4
CACAO Composite CACAO
AOKR Composite AOKR
CAOD3 Composite CAOD3 UPM3
Code Explanation Designation
A PWM A profile, heating
External control
signals 1 and 2
C PWM C profile, solar
N LIN bus
Z No profile
5
English (GB)
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