EN
META_S_Rev6-s11 - Operating Instructions
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Booster set mode provides a random delay in switching
on (0-5s) and a random delay with respect to the timing
of the switch-off attempt (0-10s).
If using booster set mode, check the Mèta booster
set instruction manual available on the website www.
calpeda.com
7.5. Operating modes
The operating mode allows you to keep the system
pressure constant at a setpoint value adjustable
with the UP01 parameter. The restart pressure
can be calculated by subtracting UP01 – UP02, the
latter defined as pressure hysteresis. The product
is equipped with a membrane that works as an
expansion vessel.
The AP06 parameter is the pressure drop at which
all taps are considered closed and so the pump is
switched off.
The AP07 parameter allows you to adjust the switch
off attempt.
7.5.1. Warning for high number of starts/hour
The TANK symbol
will light up, due to a warning
for a high number of starts and stops, if the pump
achieves at least 20 starts in a short time (cycle time
less than 5 seconds).
Press (enter) to reset the warning.
If the pump starts more than 150 times in 1 hour, Er05
will be displayed.
7.5.2. Dry-run settings management
In case of pump not primed and without water inside
the pump casing:
UP03=0 (default)
In normal operating conditions, i.e. after the first start
(15s), the warning Er01 is displayed so the pump will
try to start again every 10 minutes for 5 seconds for
maximum 5 times.
In the case that all these attempts fail, Er01 is kept
displayed until the error is reset or the pump is switched
off and back on again.
UP03=1
Alternative management, i.e. after the first attempt
(15s), Er01 is displayed and the pump will try to start
again every 10 minutes for 5 seconds, after that the
pump will try to start again every 24h for 5s (there is
no limit of attempts in this case). However, it is still
possible to manually reset or restart the pump.
Obviously, manual reset is possible even by switching
the pump off and back on.
In case of pump not primed with water inside the pump
casing.
The first priming attempt lasts 120s and the next ones
last for 30s for maximum 5 times.
If UP03=1 the attempts continue every 24h lasting 30s.
7.5.3. Forced start
To avoid any mechanical blocks, if the pump is on
stand-by for more than 24 hours, the pump starts
running for a minimum time of 5 seconds, and then
until the stop pressure UP01 has been reached. A
forced start does not take place if the pump has been
manually turned OFF.
7.5.4. Forced stop
By means of the parameter AP03 it is possible to
set a timer that forces the pump to stop if it works in
lower power consumption conditions. In this way it is
possible to prevent the pump from not stopping when
there is no water demand from the final users.
AP03 is disabled by default but values from 5 to 60
minutes can be entered.
7.5.5. Enabling safe-start
The safe-start function can be enabled. This function
prevents pressure peaks in the pipework The Safe-
start function is triggered whenever the power-supply
is cut off.
To enable this function, it is necessary to set the
parameter AP04 with a value other than zero (default).
At every interruption of the voltage supply, when the
voltage supply is restored, the pressure value will
reach 70% of the set-point value (UP01) for a time
defined by the parameter AP04. After that time the
pressure reaches the set-point value as in normal
mode.
7.5.6. Operation with external tank
We recommend installing an external tank of maximum
8 litres when:
- the pump works for prolonged periods at low flow rates
(2 litres / min or less), see paragraph. 8.6.
- Er05 or the TANK symbol
appears
For systems with external membrane tank it is
recommended to set AP05 = 1.
If pressure fluctuations are detected in the system
(intermittent operation) it is necessary to set AP05 = 1.
7.6. PASSWORD entry
To enter a menu with password, four numbers appear
on the display, the number to enter is blinking.
By pushing buttons (plus) or (minus) you can change
the blinking value. If you confirm with (enter) the next
number starts blinking.
If the password is correct you can enter the MENU,
if the password is incorrect the first number will start
blinking again.
To exit the program, push (menu) until you arrive on
the parameter page, when you exit programming
mode, the icon disappears.
password 1959
8. START-UP AND OPERATION
8.1. Preliminary checks before start-up
Do not start-up the device in case of damaged parts.
8.2. Parameters to be set at the start-up
The electric pump is already set with all the operating
parameters, therefore it is not necessary to modify any
parameters for operation.
ATTENTION: at the first start-up check that with all the
taps closed the system stops. If the pump does not
stop change the stop pressure (UP01) according to the
system needs, check that there are no suction leaks
and check that there is no air inside the pipes.
8.3. Suction pressure set-up
The system allows to set the pump suction pressure.
To set the pump suction pressure, parameter AP01
must be changed.
For correct operation, it is necessary to set a suitable
suction pressure value (negative if operating with
suction lift, positive if operating under positive suction
head).
ATTENTION: once the parameter AP01 has been
modified it is necessary to modify the parameters
UP01 and UP02 so that they are suitable for the
application and guarantee the correct start and stop
of the system (during programming the product will
suggest the values of the first attempt).
ATTENTION: the maximum values that can be set in
parameter AP01 are limited in order to never exceed
the maximum allowable pressure of the product.
