Startup - Grundfos Medium UPM Series Data Booklet

Medium UPM

9. Startup

Before you start the Medium UPM pump:
1. Mount the pump in the right way (see
8. Installation).
2. Check that the unions are tightened.
3. Check that the valves are opened.
4. Fill the system and vent it above the pump.
5. Check if the required minimum inlet pressure is
available at the pump inlet.
6. Switch on the power supply.
7. If the pump is externally controlled: Check if the
external controller sends a signal that controls the
speed or that might have stopped the pump.
8. If the pump is internally controlled: The pump starts
with factory pre-setting (e.g. proportional pressure
curve 2). Change the setting if necessary (see
interface).
Do not start the pump, until the system
has been filled with liquid and vented.
Medium UPM pumps are self-venting and
do not have to be vented before startup.
Air inside the pump is transported by the
liquid into the system shortly after
startup.
Hint for installers:
• Heating systems must be flushed according to local
standards, such as DIN EN 14336 or VOB ATV C
DIN 18380, before startup. After filling the system
for the first time, the pump must run for approx. 1
hour before a long-term stop.
• Inhibitors and additives increase the risk of
malfunction of the pump.
• If filters are installed, they must be monitored and
maintained thoroughly.
Warning: This appliance can be used by children aged
from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of
experience and knowledge, if they have been given
supervision or instruction concerning use of the
appliance in a safe way and understand the hazards
involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by
children without supervision.
Hint for OEM customers: This warning must be
available in the local language when placing the
product on the market. It is part of the Quick Guides.
User
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