sauter EQJW145, Руководство по эксплуатации

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EQJW145: Heating controller
Commissioning
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7010015003 A
© Fr. Sauter AG
Optimisation
When the optimisation function (SP53 = 1) is enabled, it has the effect that
the selected room temperature is actually reached in normal mode at the
point in time that was set in the switching programme. The usage times
should therefore be set as they are actually needed. You should not set the
programme so that the controller has additional time to warm up – which
would, of course, make sense without the optimisation function. Optimisation
provides energy-optimised control by largely preventing unnecessarily high
room temperatures outside of the usage times.
The function can be used only in conjunction with a room-temperature
sensor. SP08 (room-temperature measurement) must be switched on, i.e.
have a value of either 1 or 2. The optimisation function moves the start of
heating to an earlier time, based on the current value for the room
temperature and the characteristic of both the building and the heating
system that was ascertained by the controller. The start of heating is moved
to the latest possible time in order to attain the desired temperature at the
time set in the switching programme. The start takes place a maximum of 8
hours before the relevant switching time. During the heating operation, the
maximum permissible flow temperature (SP22) is used. In so doing, the flow
temperature is raised not suddenly, but gradually.
Furthermore, the switch-off time for normal mode is also moved to an earlier
time (up to 1 hour earlier) if this is possible without significantly undercutting
the desired room temperature by the end of the normal mode as per the
switching programme.
In reduced mode, the room's target temperature is monitored and – if
undercut – a (brief) warm-up with maximum permissible flow temperature is
carried out until the target temperature has been exceeded by 1 K. There is
no long-term flow-temperature control as per the heating characteristic.
When the optimisation function is on, it is indicated by either the sun or the
moon symbol flashing.
So as not to interrupt the heating operation, the controller carries out a one-
off charge before the room heating starts – provided water heating is required
according to the switching programme.
The optimisation function always affects the change between reduced mode
and normal mode, or the change between off and normal modes. No
optimisation takes place when changing between off and reduced modes.
The controller needs a few warm-up operations (i.e. normally a few days)
until it has determined the building's characteristic. Only then has a
practically optimum temperature profile been attained. This could be impaired
by outside influences (open windows, sources of heat etc.).
SP53