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OLIMPIA SPLENDID 9899 Thermostat User Manual
When the supply water temperature is neither too low nor too high, the operating mode remains the
same, and may be manually changed.
When the supply water sensor is not installed, or is not properly working, the automatic selection
function is disabled and only manual switching is permitted.
Centralised:
When installations include multiple thermostats in the same building, the centralised inputs of each
thermostat may be connected together and controlled by the central heating room.
Parameters C17, C18 and C19 may be used to select the input and the mode (normal or reversed)
to be associated with the “centralised summer/winter mode” function.
The wiring diagrams include an example of the wiring connections to the centralised input.
P03 and P04: These parameters define which outputs are regulated.
Parameter P03 is used in heating mode, and parameter P04 in cooling, so it is possible to select
different temperature conditioning methods, depending on the season. Each parameter defines
whether the thermostat should regulate the temperature by acting on the valve, on the fan or on
both. If the user decides to regulate the temperature using the valve only, the fan will continue
running even after temperature has reached the set-point, alternatively, the user may choose to
disable the fan permanently. If the user decides to regulate the temperature using the fan only, the
valve will remain open even after the temperature has reached the set-point, alternatively, the user
may choose to keep the valve closed permanently. In systems with an integrated heating element,
these parameters may not be used to inhibit the regulation of the valve outputs since they are driven
according to the specific system type.
P05: This parameter informs the thermostat which kind of fan motor it has to drive: an EC
motor on the 0-10V proportional output or a three-speed fan motor on the three relay outputs.
Also, it is possible to invert the proportional fan output, similarly to the valve outputs, so that the 0
V signal switches the motor on at maximum power and the 10 V signal switches it off.
P06 and P07: These parameters inform the controller which kind of valve is to be wired to
the heating output and the cooling output, respectively.
The controller can be configured to drive NO or NC (normally open or normally closed) ON/OFF
valves or 0..10V proportional valves. In the case of 0..10V proportional valves, it is possible to set-
up the following type of action:
Direct action: this means that the thermostat generates a 0 V signal at the output to close the valve
and 10 V to open it.
Inverse action: this means that the thermostat generates a 10 V signal at the output to close the
valve and 0 V to open it.
P08: This parameter informs the thermostat which type of probe is to be connected to the
supply water input (terminals 13 and 14).
The values 0 and 1 indicate that it should acquire the temperature reading from a supply water
probe. It is also possible to define whether the thermostat should display the supply water temper-
ature or not, since the supply water probe may or may not be connected, depending on the system
requirements. When it is connected, the thermostat acquires and uses the information provided
by the water supply probe, even if the user decides not to display the temperature reading. Set
this parameter to 2 to inform the device that the supply inlet is to be fitted with bi-metal thermostat,
which will be used exclusively for the minimum temperature thermostat function in heating mode.
IT - 20
| 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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