Operating Modes; Startup And Operation - Calpeda Meta Betriebsanleitung

switching on (0-5s) and a random delay with respect to
the timing of the switch-off attempt (0-10s).
If using the 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 UP01 parameter. The restart pressure can be
calculated subtracting UP01 – UP02, the latter defined
as pressure hysteresis. The product is equipped with a
membrane that works as an expansion vessel.
TThe AP06 parameter is the pressure drop at which all
taps are considered closed and so the pump switched
off.
The AP07 parameter allows to regulate the switch off
attempt.
7.5.1. Warning for high number of starts/hour
The TANK symbol
for 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) button 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 operation and management
In case of pump not primed and without water inside
the pump casing:
UP03=0 (default)
In normal operation conditions, i.e. after the first
starting (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 and a manual reset or turn off and back on
the pump is required.
UP03=1
Alternative operation mode, 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's
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 in
stand-by state 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 starting does not take place if the pump has
been manually turned OFF.
7.5.4. Forced stop
By 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
avoid that the pump does not stop 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.
META Rev4-s11 - Operating Instructions
will light on, due to a warning
7.5.5. Enabling safe-start
Safe-start function prevent a peak of pressure in the
system pipework. The Safe-start function triggers
whenever a supply disconnection occurs.
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 the 70% of the set-point value (UP01) for a time
defined by in the parameter AP04. After that time
the pressure assumes the set-point value as in normal
mode.
7.5.6. Operation with external tank"
We recommend installing an external tank of maximum
8 liters when:
- the pump works for prolonged periods at low flow rates
(2 liters / min or less), see paragraph. 8.6.
- Er05 or the TANK symbol
For systems with external membrane tank it is
recommended setting AP05 = 1.
If pressure fluctuations are detected in the system
(intermittent operation) it is necessary to set AP05 = 1.
7.6. PASSWORD insertion
To enter on a menu with password, four numbers
appear on the display, the number to insert is blinking.
By pushing buttons (plus) or (minus) you can change
the blinking value. If you confirm with (enter) the next
number start blinking.
If the password is correct you can enter on the MENU, if
the password is wrong the first number restart blinking.
To exit the program, push (menu) until you arrive on
the basic display, when you are out from the set-up
mode the icon disappear.
password 1959

8. STARTUP AND OPERATION

8.1. Preliminary checks before start-up of the
pump
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 starting check that with all the
taps closed the system stops. If the pump do not stop
change the stop pressure (UP01) according with the
system needs, check that there are not suction losses
and check that there is no air inside the pipes.
8.3. Suction pressure set-up
The system allows the set of pumps suction pressure.
To set the pumps suction pressure, parameter AP01
must be changed.
For a 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.
appears
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EN