*
The supply voltage should be within the specified
voltage range.
*
Water temperature for operation of the pump should not
exceed 33°C.
*
Failure to observe precautions given above could cause
pump to malfunction and may lead to current leakage or
electrical shock.
*
If you find any abnormalities like vibration, noise, smell,
etc., from the pump during trial operation, switch OFF the
pump and contact the dealer from whom this pump was
purchased.
CAUTION
6
OPERATION PRECAUTIONS
8. INSTALLATION PROCEDURE
Please follow the below procedure to install the OWS.
*
Switch OFF power before working on electrical lines.
*
Do not use this pump for pumping liquid exceeding
33°C as this may lead to product failure.
*
Do not switch ON pump if there is any human contact
with pumped medium. If any electrical leakage occurs,
this could prove fatal.
*
The OWS has water lubricated journal and thrust
bearings and therefore must not be run dry. Starting of
OWS without water must be strictly avoided as it will
cause damage to the bearings. Fill with pure drinking
water.
*
During monsoons, the pump will run with higher
flooded suction resulting in the pump running with
higher discharge. This results in increase in the current
drawn being higher than that specified on the name
plate. Fit a gate valve in the delivery line to throttle the
discharge till the current is lower than that specified on
the name plate.
*
Ensure proper direction of rotation of the pump on
powering up.
CAUTION
INSTALLATION
The following steps are to be executed prior to installation
l
Open the filling plugs and top up if necessary, with pure drinking water.
l
Measure Insulation Resistance using a Megger of 500 VDC.
l
Ensure contact points are clean.
l
Check direction of rotation.
l
Connect measuring cable to ground conductor.
l
Connect the other measuring cable to every core of the motor cable in
succession.
l
Ensure that insulation resistance as shown on the Megger is a minimum of
20MÙ.
l
Use prescribed pipe sizes as mentioned on the product name plate.
l
Refer Fig.2, shown below for locating the OWS for operation with flooded
suction.
Fig.2 OWS With Flooded Suction
7
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