Check Of The Circulation Pumps; Auxiliary External Heat Source Management; Use; Production Of Domestic Hot Water - Olimpia splendid SHERPA AQUADUE S2 BIG Instrucciones Para La Instalación, Uso Y Mantenimiento

6.5 - CHECK OF THE CIRCULATION PUMPS

During installation, the operation of the circulation pump can be forced for 15 minutes from the window on
the control display "Pumps"; in that way, air bleeding is eased in the final filling phase of water in the system.
The circulation pump can work in different modes depending on the needs of the system:
- Continuous operation of the pump (parameter ADDR221=OFF=0)
- Switching off upon reaching the desired temperature (parameter ADDR221=ON=1) and sampling every
ADDR237 minutes for one minute (parameter ADDR237=10 minutes, the pump will activate for one minute
every ten minutes).
When the system is in stand-by or with fulfilled set point, the anti block function of the system and DHW circuit
pumps is present; setting the parameter ADDR221=ON=1, the pump is activated every ADDR222 hours for
a time equal to ADDR223 seconds).
The parameters above can be set in the window Service.

6.6 - AUXILIARY EXTERNAL HEAT SOURCE MANAGEMENT

In heating or domestic water production mode, set the parameter ADDR226=ON=1 and, if external ambient
temperature is lower than ADDR227 degrees centigrade, the control will provide for the replacement of the
heat pump with the activation of an output for enabling of an external heat source.

7 - USE

7.1 - PRODUCTION OF DOMESTIC HOT WATER

With SHERPA AQUADUE, thanks to a water/water integrated in the internal unit heat pump, it is possible to
produce domestic hot water at high temperature (up to 75°C) without the use of electric heaters, in parallel
with the conditioning function and independently from external air temperature.
The production of domestic hot water, up to the maximum temperature of the parameter "maximum ACS_A"
of parameter ADDR248 is entrusted to the main heat pump (external unit which uses the internal unit main
exchanger) by switching the three-way valve in the internal unit.
Once the maximum temperature ACS_A of parameter ADDR248 has been reached, the main heat pump will
continue to work in conditioning mode if required and the water/water integrated in the internal unit heat pump
will produce domestic hot water until reaching the set point of parameter "Domestic hot water temperature".
T
set Point ACS
ADDR248
ADDR255
EN - 40
T3
ADDR253 ADDR254 35 42
ACS_B
ACS_A
T4