STA-RITE Onga 800E Serie Instrucciones De Montaje Y Funcionamento página 9

ONLY QUALIFIELD, LICENSED
PERSONNEL SHOULD INSTALL
PUMP AND WIRING
Even if the pump has a good pri-
ming capacity, install it as near as
possible to the intake source, in a pro-
tected well aired place.
Use only non-entrapping suction
fitting or double suction.
The pipes must be installed to
avoid elbow bends and reverse gra-
dients. Seal all joints hermetically.
In installations below water level,
the pump should he isolated from the
system by fitting a gate valve both in
the suction and discharge pipe.
Allow some space around the
pump for any future servicing.
An earth leakage circut breaker
switch of 30mA trip current must be
installed according to local
regulations.
Three phase models must be pro-
tected by a control box.
To avoid dangerous of fatal elec-
trical shock, turn OFF power to motor
before working on electrical connec-
tions.
Exactly match supply voltage to
nameplate voltage! Incorrect voltage
can cause fire or seriously damage
motor and voids warranty! If in doubt
consult a licensed electrican.
START-UP
ATTENTION!
Sand or coarse dirt in the water could
destroy the shaft seal or block the im-
peller. Any fault in the pump caused
by sand in the water or excessive con-
tamination of the water will release us
from any guarantee obligation.
ATTENTION!
The shaft seal, all other seals in the
pump and in the filter and the bearings
of the motors are wearing parts.
A fault in the above parts does not
constitute any claim under warranty.
ATTENTION!
Before starting the pump after a leng-
thy shutdown and when recommissio-
ning after the winter, we recommend
that you use a hexagon socket
wrench or screwdriver to rotate the
motor shaft of the pump a few times
when idle. This will loosen the shaft
seal and make it easier to start up the
pump.
Avoid operating the pump
unprimed.
Before starting the pump, fill the
filter body up to the level of the suc-
tion port, unscrewing the transparent
cover provided.
Ensure that the power supply cor-
responds with the data on the plate.
For pumps installed below water
level, fill by slowly opening the suction
pipe valve, while keeping open the di-
scharge pipe valve to expel air.
For three-phase motor pumps,
start the motor for a few revolutions
checking that rotation direction is
clockwise (watch the motor from the
fan side). If rotation is counter-clock-
wise, change over the connections of
two phases.
- Onga 800 E -
SELF-PRIMING
The pumps featured in this line
have an excellent suction capacity.
The self-priming time range is 1 to
5 minutes for a height difference of 2 -
3 meters, under normal installation
conditions.
Normal conditions are understood
to be: with suction having an internal
diameter of DN 50 mm, water tempe-
rature at 20 0 C, and 50 HZ mains power
supply.
To enable self-priming, make sure
that all the suction pipe joints are pro-
perly sealed.
SERVICING
Switch off power before doing any
servicing.
Inspect and clean the prefilter at
regular intervals.
To clean the transparent cover,
use water and neutral soap only. Do
not use solvents.
Replace the filter in its seat, close
the cover and repeat the start-up ope-
ration.
When pump is not being used and
there is a risk of frost, empty it com-
pletely through the drain plug.
The following parts should be tigh-
tened manually: filter cover, drain plug,
and the ring nuts on the articulated jo-
ints - do not use pliers or other tools.
ATTENTION!
Tighten and unscrew trap lid by hand
only.
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