MOTOR
MOTOR
GROUND
U
N
V
L
GROUND
LINE
LINE
STATUS
START
STOP
POWER
STATUS
START
STOP
POWER
STATUS
START
STOP
POWER
Electrical connections
The electrical connections
should be made as
indicated in the diagram
which can also be found on
the inside of the circuit cover.
Attention!
The cable bushings and
circuit board cover must be properly
assembled and secured in order to
guarantee IP 65 grade protection of the
electrical components.
Preliminary checks
Take the EASY-SMALL out of
the packaging and check the
following:
- check for damage,
- check the RATINGS corre-
spond with those required,
- that the cable bushings and
screws are in place,
- that EASY-SMALL’s inlets and
outlets are clean and free of
any packaging materials,
- that the check valve moves
smoothly.
Hydraulic connections
Orientation
EASY-SMALL can be installed
at any angle depending on the
flow direction, as indicated in
the diagrams.
Position
EASY-SMALL can either be fit-
ted directly to the pump outlet
or anywhere along the delivery
line. Never install taps between
the pump and EASY-SMALL.
Do not install a non-return
valve between EASY-SMALL
and the taps, meanwhile it is
possible, although not neces-
sary, to install a non-return
valve on the suction piping of
the pump.
Expansion tank (optional):
The expansion tank features
1” BSP M thread and must
be inflated, in the absence
of system pressure, to about
90% of restart pressure (e.g.
if the restart pressure is 1.5
bar, the inflation pressure will
be 1.3 bar.
Installation
Attention
The pressure
applied by the water column
above EASY-SMALL must
not exceed that of the pump
start-up pressure (Pm).
Attention
The maximum
pressure produced
by the pump must be at least
1-1.5 bar (15 psi) higher than
the start-up pressure (Pm).
If the pressure produced by
the pump is too low, EASY-
SMALL will stop the pump
and indicate a ‘dry running’
error message.
First start-up
Priming the pump
For instructions on how to
prime (fill) the pump, see the
pump manual.
Attention
EASY-SMALL is fitted with a
check valve: do not use the
EASY-SMALL’s outlet to fill the
pump for priming.
Switching the pump on
The red (Power) LED lights up;
EASY-SMALL instantly detects
that there is no
pressure within
the system and
starts the pump
(the green ‘Status’
LED lights up).
If, within 15
seconds of starting
up, EASY-SMALL
does
not detect the
correct priming of
the pump, it stops the pump
and indicates a ‘dry running’
error message.
Attention
When the pump is started for
the first time, it may
have to be run for lon-
ger in order to complete
the priming procedure.
Press the START/STOP
button
to restart the
pump and
complete the
priming procedure.
NOTE 1 - DRY RUNNING
= there is no flow and the pressure is
lower than that of the pump start-up pressure (Pm). It occurs when
there is no water. After 15 seconds EASY-SMALL stops the pump
and indicates an ERROR message. EASY-SMALL AUTOMATICAL-
LY tries to resume NORMAL SERVICE at intervals of increasing
time (15, 30, 60 minutes and successively once every hour). If
EASY-SMALL detects any pressure and/or flow, NORMAL SERVICE
is resumed, otherwise, the pump is stopped again until the next
attempt is made. A MANUAL attempt to resume NORMAL SERVICE
can be made at any time.
NOTE 2 - FREQUENT START-UP
= the repeated stopping and
starting of the pump at intervals of less than 2 minutes from each
other. This occurs when the flow rate is less than 2 litres/min (0,5
gpm). This may cause damage to the pump. In the event of leaks
or extended use at excessively low flow rates (less than 2 litres/
min (0,5 gpm)), the pump may be started/stopped as often as once
every few seconds, putting the pump at risk of damage.
In this case, after an interval of time that depends on frequency of
start/stop, EASY-SMALL stops the pump for the following 30 minu-
tes, in order to let it cool down, and indicates an ERROR message.
After 30 minutes, the pump is restarted AUTOMATICALLY.
The pump may be restarted MANUALLY any time.
Motor
Line
Seal
Cable bushing
