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en – Original Instructions
5 Use and Operation
5.1
Precautions
WARNING
Make sure that the discharged liquid cannot cause damage to persons or things.
WARNING: Electrical hazard
Check that the unit is properly connected to the mains power supply.
WARNING: Hot surface hazard
Motor housing may be very hot. Burn hazard. Do not touch.
NOTICE:
Dry run of the unit is prohibited, as this can destroy the bearings in a very short time.
NOTICE:
It is prohibited to operate the unit with the shut-off valve closed.
5.2
Before starting
Before ever starting the pump, verify that:
• The instructions in section 4 Installation on page 17 have been performed.
• The system has been flushed thoroughly to prevent foreign objects and impurities from
• The system has been filled and air purged (see section 5.4 Air purge on page 31).
5.3
First starting
1. Connect the plug to the mains.
• In case of models with timer, check that the green slider is in "On" position (see point 4 on
• In case of models without control knob, the pump starts to operate immediately.
• In case of models with control knob the unit stays idle (Standby mode) or starts to operate
Figure 14
2. With the unit in operation, check that:
• No liquid is leaking from the pipes.
• There is no unwanted noise or vibrations.
• Liquid is actually being pumped.
30
blocking the pump.
page 32).
depending on the position of the knob (see Figure 14 for the different scale layouts).
Installation, Operation and Maintenance Manual
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