
2. Features and benefits
TCGB0075 rev.0 - 11/2012
20
2.1 Main features
YUTAKI S80
1
Water outlet temperature up to 80 ºC even in very low ambient temperature conditions of -20 (ºC WB). The best
solution to replace existing boilers which work on systems with old radiators and weak isolation.
2
SMART cascade cycle, which combines the best performance of 1 cycle (R410A-H
2
O for low water temperatures)
and 2 cycles (R410A-R134a and R134a-H
2
O for high water temperatures), providing a better COP than
conventional systems.
3
The highest COP in the most common conditions and the highest heating capacity at high water outlet temperatures
for a wide range of outdoor temperatures, including very cold conditions.
4
Heating capacity stable at low outdoor ambient temperatures; use of water electric heater or boiler highly reduced.
5
Wide operation possibilities (space heating, domestic hot water operation, combinability with solar energy,
combinable with an existing boilers or electric heater) and different heating systems (radiator/fan coil, heating floor
or both (2nd temperature area)).
6
Floor standing structure with high installation possibilities (Indoor unit alone (without tank), Indoor unit with HITACHI
tank (Tank integrated over the indoor unit), Indoor unit with HITACHI tank (Tank beside the indoor unit) and Indoor
unit with other tank (Non HITACHI tank beside the indoor unit).
7
Compact size (595 mm width), very suitable for indoor utility room (<600 mm).
8
Easy servicing, allowing that the most important components can be accessible and extracted from the front side
of the unit. For example, the electrical box can be easily extracted from the unit's front side due to a wire-to-wire
connection.
9
Flexible water piping, for situations where by installation restrictions, handling of rigid piping could be complicated.
10
Easy wiring: big terminal board with a schematic label which makes the wiring installation easy.
11
Unit timer for heating space, DHW and swimming pool in order to enable/disable the operation depending on the
day or the time slot.
12
Easy to use LCD user's interface (PC-S80TE) with a really complete display menu for comprehensive view and
with the possibility to check all the important parameters and status of the unit in any moment.
13
Three different possible water outlet temperature set-point configuration modes for each zone (OTC points, OTC
gradient and fixed temperature).
14
A large variety of control functions, with special functions like "Floor screed drying", "DHW Anti-Legionella
protection", etc.
N O T E
The specific information about these points will be detailed throughout this chapter.