Motor Protection; Switch-On Types; Maintenance; General - Homa TPM Originalbetriebsanleitung

5.8. Motor protection

The minimal requirement is thermal relay / circuit breaker with temperature compensation, differential trigger and
anti-pumping device in accordance with VDE 0660/respective local regulations. If the machinery is connected to
electric circuits in which frequent interferences occur, 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 connecting the machinery.
Single phase motor
Pumps with 230 V/1Ph motors are equipped with a condenser in the motor housing cover.
Three phase motor
Pumps with 230 V/1Ph motors are equipped with a power contactor in the motor housing cover.

5.9. Switch-on types

Switch-on types with plug
Insert the plug into the provided socket. Pump starts directly. When using a float switch, the pump will start as
soon as the switch is triggered.
5.9.1. After switching on
The rated current is surpassed quickly during the start-up process. After termination of this process the work
current should not exceed the rated current. If the motor does not start immediately after switch-on, it must be
switched off immediately. Before further switch-on the switch pauses according to the technical data must be
complied with. In the event of a further interference the machine must be switched off immediately. A further
switch-on process may only be started after recovery of the fault.
The following points should be checked:

operating voltage (permitted deviation +/- 5% of the rated voltage)

Frequency (permitted deviation -2% of the rated frequency)

Power input (permitted deviation between the phases maximum 5%)

Voltage difference between the individuals phases (maximum1%)

Switching frequency and pauses (see technical data)

Introduction of air in the feed stream, an impact plate must be fitted, if appropriate.

Minimum submersion in water, level control, protection against dry run

Smooth run

Check for leakages, if appropriate take the necessary steps according the chapter 'maintenance'

6. Maintenance

6.1. General

The pump as well as the entire system must be inspected and maintained at regular intervals. The interval of the
maintenance is determined by the manufacturer and applies for the general conditions of use. The manufacturer
must be contacted in the event of aggressive and/or abrasive pumped mediums, since the interval could be
shortened in these cases.
The following points must be noted:

The operating instructions must be available to the maintenance personnel and must be followed.
Only maintenance work and measures listed here must be carried out.

All maintenance work, inspection work and cleaning work on the machinery and the system must be
carried out with due diligence, at a safe working place and by trained qualified personnel. The
required protective gear must be worn. The machinery must be disconnected from the power supply
for all work. Unintentional start must be prevented. Furthermore the respective protective measures
according to the Employers' Liability Association regulations, BGV/the Statutory Accident insurance,
GUV must be complied with when working in basins and/or containers.
Ensure that sling gear, ropes and the safety equipment of the hand winch are technically sound.
The pump must be disconnected from the mains before beginning work!

Electric works on the machinery and the system must be carried out by a specialist. For ex-
approved machines, you must also observe the "Ex protection" section in the annex!

If easily inflammable dissolvers and cleaning materials are used, open fire, open light as well as
smoking are prohibited.
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