Technical Terms - Xylem LOWARA Sekamatik 12MK7 Installation, Operation And Maintenance Manual

1.5.4. Damage to the product
Damage as well as malfunctions that endanger safety must be eliminated immediately by authorized personnel.
The product should only be operated if it is in proper working order. During the agreed warranty period, the
product may only be repaired by the manufacturer or an authorized service workshop! The manufacturer reserves
the right to recall the damaged product to the factory for inspection!
1.5.5. Exclusion from liability
No liability will be assumed for product damage if one or more of the following points apply:
• Incorrect design on our part due to faulty and/or incorrect information provided by the operator or customer
• Non-compliance with the safety instructions, the regulations and the requirements set forth by local law and this
operating and maintenance manual
• Incorrect storage and transport
• Improper assembly/dismantling
• Improper maintenance
• Unqualified repairs
• Faulty construction site and/or construction work
• Chemical, electrochemical and electrical influences
• Wear
In case of a power failure or another technical failure, by which a proper operation of the pump is no longer
guaranteed, it is essential to take care that damages by an overflow of the pump sump are prevented securely, for
example, by installing a mains-independent alarm or other appropriate protective measures.
This means the manufacturer's liability excludes all liability for personal, material or financial injury.

1.6. Technical terms

Various technical terms are used in this operating and maintenance manual.
Dry run
The product is running at full speed, however, there is no liquid to be pumped. A dry run is to be strictly avoided. If
necessary, a safety device must be installed.
"wet" installation type
This installation type requires the product to be immersed in the pumped fluid. It is completely surrounded by the
pumped fluid. Please observe the values for the maximum submersion depth and the minimum water coverage.
"dry" installation type
In this installation type, the product is installed dry, i.e. the pumped fluid is delivered to and discharged via a
pipeline system. The product is not immersed in the pumped fluid. Please note that the surfaces of the product
become very hot!
"transportable" installation type
With this installation type the product is equipped with a pedestal. It can be installed and operated at any location.
Please observe the values for the maximum submersion depth and the minimum water coverage, and remember
that the surfaces of the product become very hot.
"S1" operating mode (continuous operation)
At the rated load, a constant temperature is reached that does not increase even in prolonged operation. The
operating equipment can operate uninterruptedly at the rated load without exceeding the maximum permissible
temperature.
"S2" operating mode (short-term operation)
The operating time is specified in minutes, for example, S2-20. That means, that the machine can work 20
minutes and should pauses after it, as long as the machine is cooled down to 2K over medium temperature.
Operating mode "S3" (intermittent operation):
For these operating modes, after the abbreviation, the duty cycle is displayed as well as the cycle duration if it
deviates from 10 minutes. Example S3 30% means, that the machine can work 3 minutes and afterwards should
pauses 7 minutes.
"Sip operation"
Siphoning operation is similar to dry running. The product operates at full speed, but only small amounts of liquid
are pumped.
Sip operation is only possible with certain types; see the "Product description" chapter.
Dry-run protection
The dry-run protection is designed to automatically shut down the product if the water level falls below the
minimum water coverage value of the product. This is made possible by installing a float switch.
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