2. Features and benets
TCGB0075 rev.0 - 11/2012
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2.6.3 Swimming pool combination control
When the swimming pool operation is required, the swimming pool pump starts to operate giving the swimming pool
pump feedback. In this situation, the 3-way valve of the DHWT is not activated and the 3-way valve for the swimming pool
changes its normal position diverting to the swimming pool heat exchanger, allowing to heat the swimming pool water to
a confortable value.
The swimming pool operation has the lowest priority of the system and only will be possible when space heating and
DHWT are not required.
2.6.4 Flexible water pumps control
Two different water pump modes
The pump control can be set to standard or economic mode.
• Standard mode: Pump will always be in operation when space heating is enabled, but when space heating is disa-
bled using LCD user’s interface or Thermostat OFF (intelligent thermostat only), pump must be switched OFF and
only will be switched ON by DHW heating request.
• Economic mode: When the system has reached the required temperature, or the system is stopped, the water pump
will be stopped (using the thermostat; no other operation is required).
Pump and motorized valve seizure protection (Optional function)
This function helps to prevent these components from sticking during long periods of inactivity by running every week the
components during a short period.
2.6.5 Other optional functions
2nd. outdoor temperature sensor (Accessory) (Improved for YUTAKI S80)
In the cases where the outdoor unit is installed into a location where its own outdoor ambient temperature sensor can not
give a suitable temperature measurement to the system, it is available the 2nd outdoor ambient temperature sensor as
accessory.
So, the 2nd outdoor ambient temperature sensor shall be located in a proper place for getting most representative outdoor
ambient temperature.
NEW
-By means of DSW setting, it can be selected the preferable sensor for each circuit. The possibilities are:
• Auxiliary sensor instead of outdoor unit sensor for both circuits.
• Outdoor unit sensor for circuit 1; Auxiliary sensor for circuit 2.
• Auxiliary sensor for circuit 1; Outdoor unit sensor for circuit 2.
N O T E
For more information, please refer to DSW setting section on Service Manual.
Tariff switch input
This function allows an external tariff switch device to switch OFF the heat pump during peak electricity demand period.
Depending on the setting, the heat pump or DHWT will be blocked when signal is open/closed.
Additionally, it’s possible to set that the boiler will be enabled instead heat pump when this mode is ON.
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