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OLIMPIA SPLENDID 9899 Thermostat User Manual
water is not cold enough, according to the threshold defined in parameter P24. If this function is not
required, parameter P24 can be set to a very high value.
When the delivery water temperature is not hot or cold enough, as per the P23 and P24 thresholds,
the
icon is displayed. The fan is inhibited and the fan speed symbols flash.
SYSTEM WITH HEATING ELEMENT
The thermostat can be configured (P01=2) to control a system that includes an electrical heating
element for heating the room and a cooling water regulator valve for cooling the room.
Refer to the wiring diagram in Fig. 12e and Fig. 12f.
When installing this type of system, we recommend setting up a fan switch-off delay interval in P22,
so that when the electric heater is switched off, the fan keeps running to cool the heater down. When
the fan motor is driven in proportional mode, in order to cool the heater, it is possible to set-up a
minimum speed in parameter C14, which is maintained while the electric heater is on. In this type
of system it is possible to set-up a regulation with neutral zone by enabling the automatic heating/
cooling select function (P02=1). When using the “minimum temperature thermostat” function with
this type of system, the fan is never inhibited while in heating mode.
SYSTEM WITH INTEGRATED HEATING ELEMENT
The thermostat can be configured (P01=3) to manage systems that feature two different ambient
heating systems: one with a hot water flow controlled by a valve, the other with an integrated electric
heating element. In this mode, the thermostat drives a single valve on the outlet of the cooling valve
and an integrated heating element on the outlet of the heating valve. See Fig. 12e and Fig. 12f for
the respective wiring diagrams. The valve is driven as in a two pipe system: the flow of hot or cool
water being managed according to the heating or cooling setting of the thermostat. The electric
heater is activated as an additional (integrated) heat source in heating mode if the room temperature
falls below the set point temperature by a value Δ, which can be configured in parameter C21. In
cooling mode, it is possible to set-up a regulation with neutral zone by setting the amplitude of the
neutral zone to a value greater than zero in P20. In this case, cooling is achieved by activating the
valve, and heating by activating the electric heating element.
When installing this type of system, we recommend setting up a fan switch-off delay interval in P22,
so that when the electric heater is switched off, the fan keeps running to cool the heater down. When
the fan motor is driven in proportional mode, in order to cool the heater, it is possible to set-up a
minimum speed in parameter C14, which is maintained while the electric heater is on.
When using the “minimum temperature thermostat” function with this type of system, the fan is
never inhibited while in heating mode, as the electric heating element is switched on in advance.
UNDERFLOOR FAN COIL HEATING AND COOLING SYSTEMS
The thermostat can be configured to manage a special system that employs different temperature
conditioning methods, depending on whether it is necessary to heat or cool the room.
For example, during summer the thermostat may be used to drive a fan coil, cooling the room by
controlling the fan and the cold valve, while in winter, it may be used to control the underfloor heating
valve while maintaining the fan coil fan off.
The thermostat can receive information on the summer/winter status directly from the heating sys-
tem via 3 or 4, so that it manages the seasonal changeover automatically, by calling up the climate
mode and set-point for the respective seasons automatically. To configure this type of system, set
P01=1 and P03=4.
IT - 16
| 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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