Espa MISTRAL 02 Manual De Instrucciones página 10

2. HANDLING
The pumps are supplied suitably packaged to pre-
vent damage in transit. Before unpacking, check
that the packaging has not been damaged or de-
formed,
Lift and handle the product with care and with
the right tools.
3. INSTALLATION
These pumps are designed for indoor use.
Make sure that pump is never submerged and that
it rests in a dry and well aired room.
3.1. Fixing
The pump should be installed on a solid, horizontal
base, secured by screws or bolts and using the
existing holes in the mount. Ensure that the pump
mount rests squarely on the base before fixing.
Fit the kit directly at the discharge of the pump, or in line
with the discharge pipes, using the connector supplied,
as shown in Figures 2 and 3. Ensure that the
connectors are watertight (e.g. by using Teflon tape).
The kit must remain in the vertical position at
all times, with the suction mouth at the
bottom and the discharge mouth at the top.
The pressure gauge will be fitted in the
normal reading position.
If the pump to which the Kit is fitted is directly
connected to the mains supply, it must be
remembered that the incoming pressure must be
added to that provided by the pump. Total pressure
may never exceed 10 bars.
It can be fitted to any installation that has sufficient
feed flow. See installation diagrams.
3.2. Suction pipe assembly
The suction pipe, if longer than 7 meters, must be
of the same or greater diameter than the pump inlet
and installed in an upward inclination to prevent
trapped air pockets forming.
If the pump is required to perform a suction lift, to
avoid unnecessary losses of head on the discharge
side, the pump should be installed as close as pos-
sible to the water.
The end of the suction pipe must always remain at
least 30 cm below the water level. (Fig.4)
3.3. Discharge pipe assembly
It is recommended to use pipes with a diameter equal
or greater than the pump outlet. This will re-duce loss
of head caused by friction in longer pipe runs.
Pipework must be supported and their weight must
not rest on the pump.
We recommend the use of a flexible anti-vibration
hose on the discharge, as direct connection to rigid
pipework could cause damage to the KIT (Fig. 3).
No check valve needs to be installed.
3.4. Electrical connection
Single-phase motors have thermal protection.
3.5. Pre-start checks
Ensure the voltage and frequency of the
supply corresponds to the values indicated
on the electrical data label.
Ensure that the pump shaft is rotating freely.
Fill the pump body with water through the self
priming plug opening. If a foot valve has been
installed, also fill the suction pipe.
Check all joints and connections for leaks.
THIS PUMP MUST NEVER BE DRY RUN.
4. STARTING
4.1 Starting up the group
Ensure all valves in the pipework are open.
Leave a water spout open to purge the air from the
installation.
Connect the water supply cut-off. The group starts
running for 10".
Viewings from the fan ensure that the rotation of the
motor is clockwise.
Ensure that the absorbed current is the same or
lower than the maximum shown on the name plate.
Adjust the thermal relay if is necessary.
When the time is up:
- If the group supplies water as normal, the motor
continues operating.
- If the pump has not been primed, after 10" an
error is caused due to lack of water, the motor
stops. To prime the pump press the RESET key.
At the end of this operation close the spout and the
group will stop after 10". It is in "standby" mode.
If the pump fails to operate refer to the possible
faults, causes and solutions list for assistance.
4.2 Lack of water fault and retries
If the kit detects the pump is working without water
it stops the motor. The kit will attempt to start up
again after 1', 5', 15' and 1 hour (Fig.6). If the retries
fail the kit will enter permanent fault mode.
To interrupt the retry cycle or to restart from
permanent fault mode, press the RESET key.
4.3 Minimum flow
When the flow supplied by the group is less than 1
l/m, the normal motor will stop occurs after 10". The
group changes to "standby".
5. MAINTENANCE
Under normal conditions these pumps require no
special or planned maintenance.
Clean the pump with a damp cloth without using
harsh products.
If the pump is not to be operated for a long
period it is recommended to remove it from
the installation, drain down and store in a dry,
well ventilated place.
ATTENTION: In the event of faults or damage
occurring to the pump, both the replacement of the
electric cable and
equipment should only be carried out by an
authorised service agent.
The Official Technical
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