RDZ PDC FLOOR 12T, Руководство по установке

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EN
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2 .11 P1 primary pump operation
The P1 primary circulation pump (class A inverter) is started
when a request for hot water (reading of T3 positioned in the
ACS tank) or from the system (reading of T1 positioned in the
separator) is received. It may be managed using three algo-
rithms which can be set using the specific PMS parameter of the
controller:
According to the default setting, the pump operates in nor “on
demand” in cooling or heating when the pump is active only
when requested by the temperature regulator (the circulator
starts 20 seconds before the other two outputs and is switched
off with a two minute delay) and if the TA selection, “hot water
only”, is open the pump runs the cycles only when requested by
the regulator according to the reading of hot water sensor T3.
Other operating mode are “continuous” (in which the pump op-
erates uninterruptedly for as long as the instrument is active) or
“energy saving” (in which in addition to the normal request of
the regulator it runs cycles consisting of 2 minutes ON and 15
minutes OFF if the temperature regulator condition is satisfied).
The modes can be activated by means of the specific parameters
by Technical Service.
If the boiler function (CAL) is enabled is enabled and the AUX-
ILIARY HEATER is switched to the heating pump and the device
is set in standby. The “CAL” prompt appears on the display and
is only the SAN output is activated, always controlled by the T3
sensor.
The pump output is always activated in case of antifreeze alarm
detected by the sensors T2 or T3.
II
I
III
Min.