Technical Terms; Dry-Run Protection; Safety; Instructions And Safety Information - Homa H307 Manuel D'instructions Original

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 oper-
ating equipment can operate uninterruptedly at the rated
load without exceeding the maximum permissible tem-
perature.
"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 min-
utes 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 min-
imum water coverage value of the product. This is made
possible by installing a float switch.
Level control
The level control is designed to switch the product on or
off depending on the filling level. This is made possible by
installing a float switch.

2. Safety

This chapter lists all the generally applicable safety instruc-
tions and technical information. Furthermore, every other
chapter contains specific safety instructions and techni-
cal information. All instructions and information must be
observed and followed during the various phases of the
product's lifecycle (installation, operation, maintenance,
transport etc.). The operator is responsible for ensuring
that personnel follow these instructions and guidelines.

2.1. Instructions and safety information

This manual uses instructions and safety information for
preventing injury and damage to property.
To make this clear for the personnel, the instructions and
safety information are distinguished as follows:
Each safety instruction begins with one of the following
signal words:
Danger: Serious or fatal injuries can occur!
Warning: Serious injuries can occur!
Caution: Injuries can occur!
Caution (Instruction without symbol): Serious damage
to property can occur, including irreparable damage!
Safety instructions begin with a signal word and descrip-
tion of the hazard, followed by the hazard source and
potential consequences, and end with information on
preventing it.

2.2 Guidelines used and CE certification

Our products are subject to
• various EC directives
• various harmonized standards
• various national standards.
Please consult the EU Declaration of Conformity for the
precise information and the guidelines and norms in ef-
fect. The EU Declaration of Conformity is issued in ac-
cordance with EU Directive 2006/42/EEC, Appendix II A.
Also, various national standards are also used as a basis
for using, assembling and dismantling the product. These
include the German accident prevention regulations, VDE
regulations, German Equipment Safety Law etc. The CE
symbol is found either on the type plate or next to the
type plate. The type plate is attached to the motor casing.

2.3 General safety

• Never work alone when installing or removing the
product.
• The machine must always be switched off before
any work is performed on it (assembly, dismantling,
maintenance, installation). The machine must be dis-
connected from the electrical system and secured
against being switched on again. All rotating parts
must be at a standstill.
• The operator should inform his/her superior immedi-
ately should any defects or irregularities occur.
• It is of vital importance that the system is shut down
immediately by the operator if any problems arise
which may endanger safety of personnel. Problems
of this kind include:
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