Anti Dry-Running Feature; General Information; Setting The Pressure Switch; Operating The Pump With A T.i.p. Prefilter - TIP HWW 900/25 Plus Instrucciones Para El Manejo

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7.

Anti dry-running feature

7.1.

General information

Some of the T.I.P. booster sets - more specifically, the T.I.P. HWW TLS product series - are equipped with an anti
dry-running feature. This protection system prevents the pump from damage which may be caused by its
operation with an insufficient water level or by an overheating of the hydraulic system.
7.2. Functioning
If the temperature inside the pump reaches 60-70°C, the anti dry-running feature will cut off the power supply of
the motor. In this way the pump will cut out, and a warning indicator lamp will light up on the terminal box.
7.3. Resumption of operation
Once the protection system having become activated, the resumption of operation requires the switch at the
terminal box to be set to "0". Please pull off the pump's mains plug from the mains socket and allow the entire
hydraulic section to cool down. Subsequently, you should eliminate the cause of the malfunction. Then set the
switch at the terminal box to "1". Afterwards, plug the pump's mains plug into the mains socket again. If the
warning indicator lamp does not light up again, the pump will cut in. However, if the warning indicator actually
goes on again, please repeat the above steps to resume operation.
7.4. Retrofitting with an anti dry-running feature
If required, booster sets from T.I.P. without an anti dry-running protection can be retrofitted with that feature. To
order the high-quality and extremely reliable optional TLS 100 E anti dry-running accessory which can be
connected in a matter of seconds, please use item number 30915.
8.

Setting the pressure switch

Changing the preset cut-in and cut-out pressure must only be done by qualified staff.
The electrical pumps of the HWW series will cut in as soon as the cut-in pressure is reached as a result of a
pressure drop occurring within the system - as a rule, by opening of a faucet or any other consumer element.
Cutting-out occurs after the consumer element concerned has been shut off and the pressure in the system has
increased again to reach the cut-out pressure. The pressure switch is ex-factory set to 2 bar for the cut-in
pressure and to 3 bar for the cut-out pressure. Experience has shown that these values are ideally suited for most
installations. Should any modification of these settings be required, please contact your installation or electrical
specialist.
9.

Operating the pump with a T.I.P. prefilter

Abrasive matters contained in the liquid being discharged - such as sand - accelerate wear and tear and reduce
the performance of the pump. When discharging liquids containing such matters, the installation of a prefilter is
recommended. This useful accessory it will efficiently filter sand and similar particles out of the liquids, thus
minimise wear and tear and extend the lifetime of the pump.
On some booster sets from T.I.P. a pre-filter is included in the standard scope of delivery. On models where this
feature is not included in the standard equipment, such a prefilter may be retrofitted, if necessary.
A variety of high-quality prefilters from T.I.P. is available as accessories. The range offered includes, for instance:
- Prefilter G 5 (item number 31052).
- Prefilter G 7 (item number 31058).
- Prefilter G 10 (item number 31050).
The proper functioning of the filter should be checked on a regular basis. If necessary, please clean replace the
filter mesh.

10. Maintenance and troubleshooting

Prior to carrying out any maintenance work, the pump must be separated from the electrical
mains. If you fail to separate the unit from mains, there is a risk of an inadvertent start of the
pump.
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