Glossary - Daikin EHSX04P30D Manuel D'utilisation

10

Glossary

10 Glossary
Mode
Backup requirement
Backup heater
Heating curve
Refrigerant
Anti-legionella system
Off-peak mains connection
(HT/NT)
Parameters
Control unit
Return flow
Switching time program
Smart Grid (SG)
Flow
Domestic hot water circuit
Domestic hot water generation Operating status of the heat generator in which heat with elevated temperatures is generated and fed to the
Heat pump process
Heat exchanger
Weather-dependent feed tem-
perature control
Circulation pump
Heater booster
Operating Instructions
54
Request by the user or the control unit for the function of the heat generator (e.g. room heating, domestic hot
water generation, standby, etc.)
Operating situation in which the required feed temperature cannot be reached efficiently or at all using the heat
pump process. A heater booster (e.g. a backup heater) is therefore integrated to support the Daikin Altherma
EHS(X/H) in generating heat.
Optional electric heater booster for general support of the Daikin Altherma EHS(X/H) during heat generation.
Mathematical relationship between the external temperature and the feed temperature setpoint in order to
achieve the required room temperature at all external temperatures.
A substance used for heat transfer in the heat pump process. At low temperature and low pressure, heat is ab-
sorbed and at high temperature and a high pressure, heat is emitted.
Periodic heating of the storage water to >60 °C for the preventative elimination of pathogenic bacteria (so-
called legionella) in the hot water circuit.
A special mains connection to the energy supplier, which offers various cheaper rates during so-called low-
load periods for electrical current (day-, night-, heat pump current, etc.).
A value that influences the execution of programs or processes or defines specific states.
Device electronics that are used to control the processes for the heat generation and heat distribution of the
heating system. The control unit consists of a number of electronic components. The most important compon-
ent for the operator is the control panel in the front area of the heat generator, which includes program selec-
tion keys, rotary buttons and display.
Part of the hydraulic circuit that directs the cooled water from the radiators in the rooms back to the heat gen-
erator via the piping system.
Program for setting the times on the control unit in order to determine the regular heating, reducing and hot
water cycles.
Intelligent use of energy for inexpensive heating. By using a special electricity meter, it is possible to receive a
"Smart Grid signal" from the utility company.
Depending on the signal, the heat pump is shut off or operated as normal or at higher temperatures.
Part of the hydraulic circuit that diverts the heated water from the heat generator to the heating surfaces.
This is the water circuit in which cold water is heated and diverted to the hot water tap.
hot water circuit, e.g. loading of the hot water storage tank.
In a closed-loop refrigerant circuit, the refrigerant absorbs the heat from the ambient air. By means of com-
pression, the refrigerant achieves a higher temperature that is transferred to the heating system (thermody-
namic cycle).
A component that transfers thermal energy from one circuit to another. The two circuits are hydraulically sep-
arated from one another by a wall in the heat exchanger.
A suitable feed temperature is determined from the measured value for the external temperature and a defined
heating curve; this temperature is used as the target value for temperature control in the heating unit.
The circulation pump is an additional electrical circulation pump that permanently circulates the hot water in
the hot water lines, thus providing it immediately at every tap. This circulation is especially useful in extensive
pipeline networks. In systems without a circulation line, first the water cooled in the sampling line escapes dur-
ing the sampling process until the sampling line has been sufficiently heated by the inflowing hot water.
Additional heat generator (e.g. backup heater or external boiler) integrated in the heating system to achieve
the required feed temperature setpoint in the case of an inadequate or inefficient heat pump process.
Daikin RoCon+ HP
Daikin Controller RoCon+ HP
008.1444299_01 – 09/2018 – EN