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10 Configuration
Room temperature offset
ONLY applicable in case of room thermostat control. You can
calibrate the room temperature sensor. It is possible to give an offset
to the room thermistor value measured by the user interface. The
settings can be used to compensate for situations where the user
interface cannot be installed on the ideal installation location.
#
Code
Room temp. offset: Offset on the actual room temperature
measured on the user interface sensor.
[A.3.2.2]
[2-0A]
–5°C~5°C, step 0.5°C
Room frost protection
Room frost protection prevents the room from getting too cold. This
setting behaves differently depending on the set unit control method
([C‑07]). Perform actions according to the table below:
Unit control method ([C‑07])
Room thermostat control
([C‑07]=2)
External room thermostat control
([C‑07]=1)
Leaving water temperature
control ([C‑07]=0)
NOTICE
If the system does NOT contain a backup heater, do NOT
change the default room antifrost temperature.
INFORMATION
If a U4 error occurs, room frost protection is NOT
guaranteed.
See the sections below for detailed information on room frost
protection in relation to the applicable unit control method.
[C‑07]=2: room thermostat control
Under room thermostat control, room frost protection is guaranteed,
even if the room temperature home page is OFF on the user
interface. When room frost protection ([2‑06]) is enabled and the
room temperature drops below the room antifrost temperature
([2‑05]), the unit will supply leaving water to the heat emitters to heat
up the room again.
#
Code
N/A
[2-06]
Room frost protection
▪ 0: disabled
▪ 1: enabled
N/A
[2-05]
Room antifrost temperature
4°C~16°C
INFORMATION
If a U5 error occurs, room frost protection is NOT
guaranteed,
NOTICE
If Emergency is set to Manual ([A.6.C]=0), and the unit is
triggered to start emergency operation, the user interface
will ask confirmation before starting. Room frost protection
is active even if the user does NOT confirm emergency
operation.
Installer reference guide
64
Description
Room frost protection
Allow for the room thermostat to
take care of room frost
protection:
▪ Set [2‑06] to "1"
▪ Set
the
room
antifrost
temperature ([2‑05]).
Allow for the external room
thermostat to take care of room
frost protection:
▪ Turn ON the leaving water
temperature home page.
Room frost protection is NOT
guaranteed.
Description
[C‑07]=1: external room thermostat control
Under external room thermostat control, room frost protection is
guaranteed by the external room thermostat, provided that the
leaving water temperature home page is ON on the user interface,
and the auto emergency setting ([A.6.C]) is set to "1".
Additionally, limited frost protection by the unit is possible:
▪ When the leaving water temperature home page is OFF and the
outdoor ambient temperature drops below 4°C, then the unit will
supply leaving water to the heat emitters to heat up the room
again, and the leaving water temperature setpoint will be lowered.
▪ When the leaving water temperature home page is ON, the
external room thermostat is "Thermo OFF" and the outdoor
ambient temperature drops below 4°C, then the unit will supply
leaving water to the heat emitters to heat up the room again and
the leaving water temperature setpoint will be lowered.
▪ When the leaving water temperature home page is ON and the
external room thermostat is "Thermo ON", then room frost
protection is guaranteed by the normal logic.
[C‑07]=0: leaving water temperature control
Under leaving water temperature control, room frost protection is
NOT guaranteed. However, if [2‑06] is set to "1", limited frost
protection by the unit is possible:
▪ When the leaving water temperature home page is OFF and the
outdoor ambient temperature drops below 4°C, then the unit will
supply leaving water to the heat emitters to heat up the room
again, and the leaving water temperature setpoint will be lowered.
▪ When the leaving water temperature home page is ON, then the
unit will supply leaving water to the heat emitters to heat up the
room according to normal logic.
Operation range
Depending on the average outdoor temperature, the operation of the
unit in space heating is prohibited.
Space
heating
OFF
temp: When the averaged outdoor
temperature raises above this value, space heating is turned OFF to
avoid overheating.
#
Code
[A.3.3.1]
[4-02]
14°C~35°C
Domestic hot water control: advanced
Preset tank temperatures
Only applicable when domestic hot water preparation is scheduled
or scheduled + reheat.
You can define preset tank temperatures:
▪ storage economic
▪ storage comfort
▪ reheat
▪ reheat hysteresis
Preset values make it easy to use the same value in the schedule. If
you later want to change the value, you only have to do it in 1 place
(see also operation manual and/or user reference guide).
Storage comfort
When programming the schedule, you can make use of the tank
temperatures set as preset values. The tank will then heat up until
these setpoint temperatures have been reached. Additionally, a
storage stop can be programmed. This feature puts a stop to tank
heating even if the setpoint has NOT been reached. Only program a
storage stop when tank heating is absolutely undesirable.
#
Code
[7.4.3.1]
[6-0A]
30°C~[6‑0E]°C
Description
Description
EJHA04AAV3 + NHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P556861-1A – 2019.05
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