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SE.33.C.178.1509

Assembly instructions | Grundfos UPM3 Auto L 15/70

IntroductionGrundfos UPM3 Auto L 15/70 is a compact, ener-gy-saving and high-performance pump specifi-cally developed for the OEM market. LK uses UPM3 Auto L in several products because of its good characteristics.

The pump has ten different setting options, three curves for Proportional Pressure, three curves for Constant Pressure and four curves for Constant Curve. The recommendation for underfloor heat-ing is Constant Pressure and a curve that is adapt-ed to conditions for the installation. The pump is set to Proportional Pressure, curve three, on deliv-ery.

Operating mode / Settings modeGrundfos UPM3 Auto L indicates in normal oper-ation the power used by the pump (stated in per cent of maximum capacity) in accordance with the table below.

Table, overview of operating mode.

To show the setting currently in use by the pump, give the button a short press . Read the selected mode by studying the settings menu. After two seconds the indicator returns to operating mode.

Grundfos UPM3 Auto L 15/70

To change the pump setting press the button on the pump for 2-10 seconds, when the pump will show the selected setting in accordance with the settings menu. Pressing the button shifts the pump between the different settings. Adjust to the desired setting using the menu.Note that for floor heating Constant Pressure is recommended with a curve that is suitable for the installation needs.

Note! The pump is set to Proportional Pressure,

curve three, on delivery. This must be manually changed to Constant Pressure by the installer when the pump is

used in floor heating installations.

To show the current setting, press once on the button

To view the settings menu, hold the button pressed for 2-10 seconds

When the setting changes are com-plete, the pump returns to operat-ing mode after 10 seconds

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SE.33.C.178.1509

Assembly instructions | Grundfos UPM3 Auto L 15/70

Display Indication Operation ActionRed LED, Yellow LED #3

Electric fault

Pump stops because of low voltage or serious fault

Check volt-age to pump / Replace pump

Dimensions72 45

130

90

12836 92

G1 Weight 1,9 kg

Grundfos UPM3 Auto L 15/70 130

Pump diagram

Electrical contact

The pump's electrical contact should be connected to a 230 V 50 hz socket by a qualified electrician in accordance with the diagram above. This contact no longer requires a 2-pole switch disconnecter. The electrical contact should be equipped with a slow-blow fuse of up to 10 A.The pump should be disconnected from the mains before any maintenance work.

Settings menu

Overview of settings options for the UPM3. Relevant set-tings are marked with a blue triangle, other settings are shaded.

LockThe pump can be locked so that it is not possible to show or change settings. In order to lock/unlock the pump then press the button for more than 10 seconds.

Alarm codesIn the event of an operating problem then a fault code will be displayed as below.

Display Indication Operation ActionRed LED, Yellow LED #5

Blocked rotor

False start was 1.33 s.

Wait or re-lease rotor

Red LED, Yellow LED #4

Too low voltage

Only one warning, the pump oper-ates as normal

Check the voltage to the pump