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YUTAKI CASCADE CONTROLLER
8.13.3.7 Complementary Heating configuration
Solar combination:
The solar combination will enable you to
heat up your domestic water by means
of the sun whenever the sun is available.
•
Set input 4, output 4 and sensor (see section
configuration").
•
Deactivated: No solar Kit is installed.
•
Input Demand: Alternative DHW tank operation is done by solar system or YUTAKI
unit. Solar input can disable DHW operations done by YUTAKI unit.
-
DHW Hysteresis (OFF, 35 ~ 240 min).
-
DHW Maximum Time (5 ~240 min).
•
Total Control: YUTAKI units controls the solar operation for the system, based on
different temperatures: DHWT is heated by either the hot water that comes from the
solar panels or the hot water that comes from the heat pump, depending on the solar
temperature. See detailed information in
Electrical heater
Proportional band:
•
Control to determine how fast
setting temperature is going to be
reached. Higher values imply fast
achievement of water setting point
and therefore higher utilization of
heater.
Reset factor:
•
Used to guarantee setting
temperature achievement without
surpassing its value. Higher values
imply less utilization of heater.
Waiting time:
•
Delay time to start Electric Heater
in case all conditions allow Electric
Heater to start after HP has been
started. Only in case of Backup
option.
Maximum heater step:
•
Only in case of Backup option.
139
PMML0575 rev.1 - 09/2021
"8.13.3.11 Inputs, Outputs and Sensors
"Solar combination - Total
control".
Heating Source:
•
HP Only
•
HP + Heater
•
HP + Boiler
•
HP + Heater + Boiler (Only for YUTAKI S and
YUTAKI S COMBI)
Electrical heater: See detailed information in
"Electrical heater"
Boiler combination: Boiler will only operate if unit
is in Space Heating or Hot Sanitary Water modes.
It will always be Deactivated in any other mode
(Swimming Pool and Cooling mode). Set output
3 and sensor 1 for boiler (see section
Inputs, Outputs and Sensors
See detailed information in
Operation:
Starting: Space Heating electric Heater is switched ON in
•
case of low water temperature and low ambient temperature
to provide extra capacity to HP.
•
Backup: Space Heating Electric Heater is switched ON
in case of low ambient temperature (below Bivalent point)
in order to provide extra capacity to HP at coldest days of
winter.
Bivalent point:
•
Electric heater is enabled to operate in case ambient
temperature goes below this value. Only in case of Backup
option.
Supply setting offset:
•
Setting offset for electric Heater. Higher values imply earlier
stoppage of electric heater and vice versa. Only in case of
Backup option.
Inter stage time:
•
Time of Electric Heater phase overlapping when there is
switch ON/OFF transition from/to phase 1 to/from phase 2.
Only in case of Backup option.
"8.13.3.11
configuration")
"Boiler combination"
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