Additional Indoor Unit Electrical Heater Elements Management; Remote Control - Olimpia splendid SHERPA AQUADUE OS-CEBSH24EI Instructions For Installation, Use And Maintenance Manual

• Display of the analogue and the internal unit board digital inputs:
• D3 ON/OFF (switching on/off request from external contact, terminals 1, L)
• D4 Heat/Cool (heating/cooling request from external contact, terminals 2, L)
• D5 Eco (second Eco set point request from external contact, terminals 3, L; Eco contact open)
• D6 Night (night operating mode request from external contact, terminals 4, L; Night contact open)
• D7 DHW Req. (domestic hot water request from external contact, terminals 5, L)
• D8 Ta (heating/cooling activation/deactivation terminals 6, L)
Red means input closed, green means input open.
• Display of PID in / PID out values (PID value external unit request/PID value of the external unit).
Touching the graph icon
When the graph is touched a cursor appears that can be moved along the time axis with the arrows or moved directly with a
Touching the graphic scale icon
If an alarm is triggered on the unit, the alarms page appears with number of the alarm and at the same time an audible signal
continues for a maximum duration of 60 seconds. The audible signal can be stopped by pressing either of the 'alarms active' or
'return' icons, or it will stop automatically after 60 seconds.
3.2

ADDITIONAL INDOOR UNIT ELECTRICAL HEATER ELEMENTS MANAGEMENT

The units are equipped with additional 2-stage heater elements: 1.5 kW + 1.5 kW on SMALL internal units and 3 kW + 3 kW on
LARGE units.
They can be enabled to supplement the heating power, the domestic hot water production and during anti-legionella cycles (see
0 = not enabled
1 = one heater element enabled
2 = two heater elements enabled
TEMPERATURE THRESHOLD FOR ACTIVATING ELECTRICAL HEATER ELEMENTS", if the water temperature is 4°K below
The electrical heater elements will activate even in the event of a fault on the external unit.
3.3

REMOTE CONTROL

Some appliance functions can be controlled remotely using free contacts.
terminal 1: Cooling ON: with the clean contact open the system is in standby mode, with the contact closed the system is
in cooling mode
terminal 2: Heating ON: with the clean contact open the system is in standby mode, with the contact closed the system is
in heating mode
terminal 3: second ECO mode set point: with the clean contact open the Set point selected is, depending on the mode
terminal 4: night-time mode selection activation: with the free contact open the function is disabled, with the contact closed
the function is active
terminal 5: (already connected to the terminal board of the internal unit 5/L): domestic water heating activation: with the
free contact open domestic water mode is disabled; with the contact closed domestic water mode is enabled
terminal 6: cooling or heating mode activation/inhibition. when the contact is open, the domestic water function remains
active. It may also be connected to a chrono-thermostat or in parallel to the chiller/boiler contacts of the electronic
controls of fan coils Bi2 and Bi2+.
The contacts must be closed on terminal L
3.4 CIRCULATION PUMP CHEC S
The circulation pump can run in different modes depending on the requirements of the system to which the unit is connected:
• The pump switches off when the water set-point is reached; the pump activates periodically to verify the water temperature
on the "Diagnostics" page calls up the window showing graphs of the temperatures read by the
enlarges the temperature scale.
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