1592038420 XRB30-60-70-77CH EN v1.1 2021.09.15 XRB 25/38
- Parameters dLE and dSE must be intended as pure intervals (maximum duration of energy saving
mode) if RTC is present and configurated.
- Energy saving algorithms and Real Time Clock are mutually influenced in the following ways:
o When ErA=bAS: if iLE, dLE≠nu and/or iSE, dSE≠nu, energy saving status will always
modified by RTC. In this case the basic energy saving algorithm is formally disabled.
o When ErA=Aut: only par. dLE will be taken into consideration. This means that the status of
energy saving will always be activated and deactivated by the ErA=Aut algorithm, but it can
also be deactivated by RTC and using par. dLE. In this specific case, dLE will have the
meaning of “exact time – hh:mm – for deactivating energy saving”. After deactivation from
RTC, the energy saving algorithm will take imeddiately the control of the operating status.
11. PULL DOWN
11.1.1 NORMAL MODE
The PULL DOWN function is active when the room temperature measured from the regulation probe goes
over the SET+oHt+HY value. In this case, a special set-point value, lower than the normal SET value, will be
enabled. As soon as the room temperature reaches the SET-SCo value, the compressor will be stopped and
the normal regulation will restart. N.B.: Pull Down function is disabled when SCo=0.
The tSC parameter sets the maximum activation time for Pull Down. When tSC expires, the Pull Down will
be stopped and the standard SET-POINT will be restored. NOTE: in case of energy saving mode active, the
used values will be: SET_ES=SET+HES, oHE and SCE.
11.1.2 EXITING FROM ADVANCED ENERGY SAVING MODE
The PULL DOWN function can be activated when working mode change from ES (valid only if ErA=Aut) to
normal mode. The par. Pdt has to be set properly to anticipate the ES mode ends: it permits to switch the
working mode to normal mode before the ES end pattern defined by the ErA=Aut algorithm. This function is
automatically activated only if the current ES interval is larger than par. nCC.
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