Non-Manufacturer Modification And Spare Part Production; Unauthorised Usage; Installation And Commencement Of Operation - Zehnder EP 11-3 Manuel D'utilisation

Pumps and units which carry hazardous materials must be decontaminated.
Immediately after completion of the work all safety and protection coverings should be reinstalled and / or switched on.
Please observe all instructions set out in the section on "Installation / commencement of operation" before returning the machine to service.

2.7 Non-manufacturer modification and spare part production

Modifications or alterations of the machine are only permitted after consultation with the manufacturer. Original spare parts and accessories
authorised by the manufacturer ensure safety. The use of other parts can invalidate any liability of the manufacturer for consequential
damage.

2.8 Unauthorised usage

The safety of the delivered pump is only guaranteed by usage according to the section 1 – General - of the instructions. The listed maximum
ratings as per specification should under no circumstances be exceeded. The improper use of the pump, i.e. pumping of air or explosive
media is strictly forbidden.
CAUTION Also, this booster- kit, as a fully automatic utensil may need supervision from time to time and ensure if left
inactive for long periods that the electrical supply to the pump is switch off.
3. Description
The pumps are fitted with a robust single– phase electric motor. The most important seal is a mechanical seal between motor and pump–
body. The booster-kits are ready for operation with diaphragm vessel, pressure switch and pressure gauge. All units have a 1,5m power
supply cable with plug for 230 V 50 Hz single-phase. Other voltages are possible on demand. Please note the data printed on the type-plate.
- This pump must be connected to an earthed outlet.
- Do not lower or lift the pump by means of the power cable.
- A damaged power cable must be replaced immediately by a qualified electrician. Danger of personal injury by electrical
shock if operated with a damaged cable!
- If the pump is connected to an electric installation where an earth-leakage circuit breaker (CB) is used as an additional
protection, this circuit breaker must trip out when earth fault current exceeds 30mA.
- The pump must not drop in water and also not submersible.
- Any operation of the pump next to a swimming pool or garden pond is only permitted if the unit is installed in accordance
to local legislations.
It is strictly forbidden to swim while using the pump in the swimming pool.
- If in doubt consult a qualified electrician.

4. Installation and commencement of operation

Before starting any work on the pump/motor make sure that the electric supply has been switched off and that it can
not be accidentally switched on.
Before installing and starting please check the pump for possible damages (i.e. during transport) to prevent personal
injury by electrical shock.
The pump must be installed in a horizontal position.
For best performance the dimension of the inlet-pipe (suction-hose or –pipe) must be min. 1" (25mm) and outlet (pressure-hose or –pipe)
min. ¾" (20mm). To avoid friction loss we recommend use the same dimensions for inlet and outlet.
Before starting the pump- body must be filled up with water. To avoid any damages of the pump hydraulics and seals, the pump must not run
dry! For avoiding air-locks the suction- hose/-pipe should be installed with a gradient of 2% up to the pump.
CAUTION Using a foot- valve (non-return valve) with strainer is recommended for the jet pumps and a matter of urgent necessity
for booster kits.
In addition the suction hose/ -pipe should be fitted with a strainer with 3mm maximum particles size and a pre- filter before the pump (are
not in the scope of delivery).
Remark: Increasing the suction pipe length will decreasing the pump performance.
When suction – and pressure hose or -pipe are fitted and are airtight, the pump can be filled with water. Therefore remove the plug and fill
the pump with water. Filling should be done carefully to the outlet (pressure) – connection or filling to the connection at the top of the pump-
body. Tighten the valve using fingers only. Also fill the sucking hose/ -pipe with water for best performance.
The connection on the suction side (inlet) must be absolutely air –tight. Otherwise the pump will not build up a vacuum which is necessary
for priming. A hose should be a vacuum type.
12
GB