3. Delivery Pipe
Use a delivery pipe with a diameter of 1 ½”.
ATTENTION: Delivery pipes should be connected with the
utmost care. Make sure that all the connections fixed by means
of threads are sealed. Avoid applying excessive strength to
tighten the threads or other components.
Use a Teflon tape to completely seal all threads.
Before lowering the pump unit, smooth out
any rough spots or sharp edges on the top
of the cistern to prevent damage to the pump
or power cables when lowering the unit into
the tank.
V. ELECTRICAL CONNECTION
All wiring should conform to the requirements of local and
national electrical codes. If in doubt, contact your electricity
supply authority. Cables should be insulated and sheath type,
rated for continuous immersion in water.
Power connections and wiring must be
carried out by an authorized electrician.
Verify that the voltage and frecuency of the
electric pump shown on the nameplate
correspond to those available on the mains.
WARNINGS:
a) Before installing or servicing your pump check to ensure that
electrical power is turned off and disconnected.
b) Single phase motors with in-built thermal overloads may
restart automatically and unexpectedly. Ensure that warning A.
above is observed at all times.
1. Motor Protection
Make sure that electric system has a fused
disconnect switch or a high-sensitivity circuit
breaker.
All electrical connections should be checked before the pump
is installed in the tank. It is recommended attaching the electric
cable to the delivery pipe with plastic straps, at a distance of
about 10´, when using rigid piping.
The MINI-SUB pumps have a built-in thermal protection. The
pump stops if an overload condition occurs and the motor
restarts automatically after it has cooled down, therefore pump
doesn´t require any external protections.
Electrical extension cables must have a minimum section
of H07 RN_F. The plug and connections should be protected
against water splashes.
2. Grounding pump
WARNING: Failure to ground electrically operated equipment
may result in serious electric shock. Refer to local code require-
ments.
All pumps are equipped with a GROUND
lead which must be connected to the
GROUND of the incoming power supply.
Do not use metal drop pipe as the GROUND
return under any circumstances.
3. Starting the unit
Connect the pipe to the delivery mouth before starting the
pump. Connections must be made so as to avoid losses.
Install a valve in the delivery pipe to facilitate the process of
priming and start-up.
Before starting the pump, always inspect it visually (especially
power cable and plug). Do not run the pump if it is damaged.
If the pump is damaged, have it inspected by a specialized
assistance service only.
Do not lift or move the pump by the power cable or use it to
remove the plug from the socket. Protect the plug and the
power cable from heat, oil and sharp edges.
Use the electro-pump in the performance
field listed on the nameplate.
Do not operate the pump without liquid to
avoid damaging hydraulics parts and seal.
Do not run the electro-pump with
a completely closed delivery.
Never run this pump without discharge flow
for more than a few seconds, as water will
heat and cause damage to the pump or pipe
lines not covered by warranty.
To prevent possible injuries to people, avoid
inserting hands into the mouth of the pump
if it is connected to the mains.
VI. DELIVERY AND STORAGE
1. Delivery
Every electro-pump is carefully tested and packed during its
manufacturing process. MINI-SUB pumps are supplied from the
factory in proper packing in which they should remain until they
are to be installed.
After purchasing the pump, check that it has not been damaged
during transportation. If the pump is damaged, immediately
inform the dealer within 8 days from the date of purchase.
The pump should not be exposed to unnecessary impact and
shocks.
2. Storage and handling
The pump should not be exposed to direct sunlight. If the pump
has been unpacked, it can be stored horizontally or vertically,
adequately supported. Make sure that the pump cannot roll or
fall over.
