Commissioning; Preparation Work; Electrical System; Direction Of Rotation - Homa H511 Originalbetriebsanleitung

5.4. Commissioning

This chapter contains all important instructions for oper-
ating personnel for safe commissioning and operation of
the machinery. The following must be complied with and
checked:
• Type of installation
• Operation mode
• Minimal submersion in water / maximum submersion
depth
After a longer downtime these points must also be
checked and detected defaults must be repaired! The
operation and maintenance manual must always be
kept with the machinery, or in a dedicated place where
it is accessible for the entire operating personnel.
The following points must be taken into account to avoid
personal and material damage when troubleshooting ma-
chinery failures:
The commissioning of the machinery must only be
carried out by qualified and trained personnel in com-
pliance with the safety regulations.
• All personnel that is working on the machinery must
have received, read and understood the operating in-
structions.
• Activate all safety equipment and emergency switch-
offs before commissioning.
• Electrotechnical and mechanical settings must only
be carried out by specialists.
• This machinery is only suitable for the use under the
indicated operating conditions.

5.5. Preparation work

The machinery was constructed and fitted according to
the latest technology, so that it works for a long time and
reliably under normal operating conditions. This requires
however that you comply with all requirements and in-
formation. Small oil leakages of the floating ring seals on
delivery are not problematic, but they must be removed
before lowering/immersion into the medium.
Please check the following points:
• Cable run - no loops, slightly tightened
• Check temperature of the medium and submersion
depth - see machinery data sheet
• If a tube is used for pressure, this must be rinsed with
clear water so that no deposits lead to obstruction.
• The pump pit must be cleaned for wet installation
• The pressure-sided and suction-sided pipework sys-
tem must be cleaned and all gate valves must be
opened
• The pump casing must be flooded, e.g. it must be
filled completely with the medium and it must not
contain an air. The de-aeration can be carried out by
means of suitable venting devices in the system or, if
available, by air-vent screws on the pressure socket.
• Check accessories, pipework, suspension devices for
firm and correct fitting
• Check available level controls/protection against dry
run
30 | EngliSH

5.6. Electrical system

The respective local and VDE regulations must be com-
plied with when choosing and installing the electrical
leads as well as connecting the motor. The motor must be
protected with a circuit breaker. The motor must be con-
nected according to the wiring diagram. Note the direction
of rotation! In the event of wrong direction of rotation the
machine does not perform as indicated and it can become
damaged under unfavourable circumstances.
Electric shock hazard!
Faulty dealing with current may jeopardize your life!
All pumps with free cable ends must be connected by
a qualified electrician.

5.7. Direction of rotation

For 1Ph-motors, control of the direction of rotation is not
necessary as these always run in the correct direction of
rotation. The stated specifications and performance can
only be achieved if there is a clockwise rotating field. The
machine is not designed for use on a left rotating field.

5.8. Motor protection

The minimal requirement is thermal relay / circuit break-
er with temperature compensation, differential trigger
and anti-pumping device in accordance with VDE 0660/
respective local regulations. If the machinery is connect-
ed to electric circuits in which frequent interferences oc-
cur, we recommend additional installation of safeguarding
equipment (e. g. overvoltage relay, undervoltage relay or
phase failure relay, lightning protection, etc.). The local
and legal regulations must be complied with when con-
necting the machinery.
1-phase motor
Pumps with 230V/1-phase motors are equipped differently:
1-phase motors
H501W 10m connecting cable, power plug
H501WA 10m connecting cable, float switch with power plug
H502W 10m, connecting cable, switchgear with power plug
H502WA 10m connecting cable, float switch with power plug
H505W 10m connecting cable, power plug
H505WA 10m connecting cable, float switch with power plug
H506W 10m connecting cable, switchgear with power plug
H506WA 10m connecting cable, float switch with power plug
H508W 10m connecting cable, switchgear with 30mF
condenser, with power plug
H508WA 10m connecting cable, float switch with 30mF
condenser, with power plug
H511W 20m, connecting cable, switchgear with 40mF
condenser, with power plug
H511WA 20m, connecting cable, float switch with 40mF
condenser, with power plug
When using other switching devices, pay attention to the
current rating of the motor when designing the circuit
breaker for the motor (see nameplate)