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1.8.2.5 Domestic Hot Water (DHW) configuration
Setting temperature:
Setting for domestic hot water
temperature selected by the user.
The maximum value of this setting
depends on the Maximum setting
temperature set by the installer.
(Between 30 to maximum setting
temperature.)
HP Control:
To achieve the DHW setting
temperature it is possible to select
between two different modes of
control:
• ΔT: The most efficient
way to achieve the setting
temperature. The outlet water
temperature is 15º higher
than the tank temperature,
increasing gradually until
achieve the target water
outlet temperature (setting
temperature).
• Fix: This is the fastest way to
achieve setting temperature.
The outlet water temperature
is set to HP Control setting.
HP Control setting can be only
adjusted in case HP Control is
Fix.
HP Control setting:
Selection of the DHW
temperature for the Fix HP
Control.
Maximum setting temperature:
Maximum value of DHW setting
temperature permitted by the
installer.
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Status of DHW:
• Disabled
• Enabled.
Mode: Only available when DHW heater is
activated (DSW4 pin 3 ON).
• Standard: DHW heating operation starts
when the temperature of the water in the
tank is low enough to start up the heat
pump. DHW is heated up with the heat
pump or the electrical heater (if electrical
heater is enabled).
• High Demand: DHW heating operation
starts if water temperature and setting
temperature diference is larger than
differential temperature. DHW can be
heated up using the heater, the heat
pump or a combination of both.
Control:
• High Efficiency: Compressor operation
is adjusted to optimal efficiency for
lower power consumption. Electrical
heater only works when the maximum
working temperature of the heat pump is
achieved.
• High Speed: The heat pump is switched
to maximum operation capacity to heat
up the tank in the shortest time.
Differential temperature:
Value that the unit restart heating
operation of the tank.
• Only available if DHW is in High
demand mode.
HP OFF differential temperature:
Hysteresis for the stop of DHW heating
operation with the heat pump.
HP ON differential temperature:
Hysteresis for the start of DHW
heating operation with the heat
pump.
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