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OLIMPIA SPLENDID 9899 Thermostat User Manual
ON/OFF logic
This output is active when the thermostat is on.
Economy logic
This output is active when the thermostat is in economy mode or switched off.
Heating/cooling logic
This output is active when the thermostat is in heating (winter) mode.
Input status repetition
This output repeats the status of an input 3, 4 or 16. This output is active when the inlet is closed.
0..10V PROPORTIONAL OUTPUTS CONTROL
It is possible to connect several actuators to the same 0..10V output, however it is necessary
to make sure the output is not overloaded. Ensure that the impedance of the group of actuators
does not drop below the minimum impedance the thermostat is capable of driving (see “Technical
specifications” section).
The thermostat monitors the 0..10V outputs continuously and, if it detects an overload, it indicates
the anomaly on the display by activating the icon in the event of a problem on a heating or
cooling 0..10V valve output, or the icon in the event of a problem on the 0..10V fan output. In
the case of a problem on the fan output, the electric heater output is disabled in electric heater and
integrated electric heater systems.
TEMPERATURE ACQUISITION
The thermostat acquires both the room temperature and the delivery water temperature in the
fan-coil exchanger via NTC type sensors. The thermostat is equipped with an internal temperature
sensor, as well as an input for a remote sensor. To select the internal or remote sensor, access
parameter P11 in the “installer configuration”. The supply water temperature in the fan-coil is ac-
quired via a remote NTC sensor. There is no need to install the supply water sensor if the system
does not require it. To enable the functions associated with the supply water sensor, refer to the
“Cut-off temperature function” section. If the room or water temperature is outside the operating
range, the display indicates “Or” (out of range). In the event of a sensor fault, such as an open or a
short circuit, the display indicates “EEE” (error): when this happens, the functions that require the
temperature reading are not performed.
MINIMUM TEMPERATURE THERMOSTAT FUNCTION
The minimum temperature thermostat function is used to inhibit fan operation if the supply water
is not hot enough when the system is in heating mode. To set-up this function, a supply water tem-
perature probe, or a bi-metallic thermostat, must be installed on the terminals.
When using probe, the “water hot enough/not hot enough” threshold is defined in parameter P23.
If this function is not required, parameter P23 can be set to a very low value.
When using a bi-metal thermostat for this function, parameter P08 must be set to the value “2”: in
this case, fan operation is enabled only when the bi-metal contact is closed. When using this type
of bi-metal thermostat, it is not possible to display the water temperature or execute the automatic
changeover function. Please refer to the “Installer Configuration” section for information on setting
up the parameters related to the functions described above. The “minimum temperature thermostat”
function is also available in cooling mode. In this case, fan operation is inhibited when the supply
IT - 15
| General | Details |
|---|---|
| Name | OLIMPIA SPLENDID 9899 Thermostat User Manual |
| Make | OLIMPIA SPLENDID |
| Language | English |
| Filetype | PDF (Download) |
| File size | 5.17 MB |
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