IWAKI PUMPS APN-085-W, Инструкция по эксплуатации, Страница: 13 / 24

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Installation
4. Tube size
For liquid transfer, a suction line bore should be ø4mm or
less. Otherwise, the motor is locked by overfeeding.
A discharge line bore should be ø8mm or more.
CAUTION
Use of a large tube bears the risk of coming off, causing
an air and a liquid leak.
5. Valve mounting
Install a ball valve in a suction line for adjusting an air/liquid
flow or the degree of vacuum and in a discharge line for
shutoff or the convenience of maintenance.
6. Tube and fitting connection
Wrap a sealing tape to the thread of tube fittings and screw
them into the inlet and outlet of the pump. And then fit and
slide tubes down onto the fittings as far as they will go.
NOTE: If suction line connection is imperfect, the pump sucks
air and it prevents the pump from bringing out full per-
formance.
2.3 Electrical wiring
Electrical wiring must be done by a qualified person who has
a full knowledge of safety. We are not responsible for personal
injury or property damage due to nonobservance of this warn-
ing. Contact us or your nearest distributor for wiring as neces-
sary.
■ Before wiring
1. Confirm that power is disconnected before work.
2.
Wiring work should be done in accordance with relevant
electric work requirements. Use the recommended wiring
accessories.
3. Observe the rated voltage specified on the name plate.
4. Earth the pump through the earth terminal.
5. Install the leakage breaker as necessary. When it has func-
tioned, turn off power and check/solve problems to restore a
normal state.