08 + ERLQ004~008
Daikin Altherma - Low Temperature Split
4P313774-1 – 2012.05
Installer reference guide
54
8 Configuration
Temperature ranges (room temperature)
Only applicable in room thermostat control. In order to save energy
by preventing overheating or undercooling the room, you can limit the
range of the room temperature, both for heating and/or cooling.
Room temperature step
Only applicable in room thermostat control and when the temperature
is displayed in °C.
Room temperature hysteresis
Only applicable in case of room thermostat control. The hysteresis
band around the desired room temperature is settable. Daikin
advises NOT to change the room temperature hysteresis as it is set
for an optimal use of the system.
Room temperature offset
Only applicable in case of room thermostat control. You can calibrate
the (external) room temperature sensor. It is possible to give an offset
to the room thermistor value measured by the user interface or by the
external room sensor. The settings can be used to compensate for
situations where the user interface or external room sensor cannot be
installed on the ideal installation location (see installation manual
and/or installer reference guide).
Room frost protection
Only applicable in case of room thermostat control. When the actual
room temperature would drop below the room frost temperature, the
unit will supply leaving water (in heating operation mode) to the heat
emitters to heat up the room again.
Shut-off valve
Only applicable in case of 2 leaving water temperature zones.
The shut-off valve, which is in the main leaving water temperature
zone, output is configurable.
Thermo On/OFF: the valve closes, depending on [F-0B] when there
is no heating and/or demand of the room in the main zone. Enable
this setting to:
Q
avoid leaving water supply to the heat emitters in the main LWT
zone (through the mixing valve station) when there is request
from the additional LWT zone.
Q
activate the On/OFF pump of the mixing valve station only when
there is demand (see application guidelines). See "5 Application
guidelines" on page 9.
Cooling: Only applicable for EHBX and EHVX. The shut off valve
closes, depending on [F-0C] when the unit is running in cooling
operation mode. Enable this setting to avoid cold leaving water
through the heat emitter and the forming of condensation (e.g. under
floor heating loops or radiators).
NOTICE
When adjusting the room temperature ranges, all desired
room temperatures are also adjusted to guarantee they are
between the limits.
#
Code
Description
Room temp. range
[A.3.2.1.2]
[3-06]
Maximum temp (heating)
18~30°C (default: 30°C)
[A.3.2.1.1]
[3-07]
Minimum temp (heating)
12~18°C (default: 12°C)
[A.3.2.1.4]
[3-08]
Maximum temp (cooling)
25~35°C (default: 35°C)
[A.3.2.1.3]
[3-09]
Minimum temp (cooling)
15~25°C (default: 15°C)
#
Code
Description
[A.3.2.4]
[3-06]
Room temp. step
Q
1°C (default). The desired room
temperature on the user interface is
settable per 1°C.
Q
0.5°C The desired room
temperature on the user interface is
settable per 0.5°C. The actual room
temperature is displayed with an
accuracy of 0.1°C.
#
Code
Description
N/A
[9-0C]
1~6°C (default: 1°C)
#
Code
Description
Room temp. offset: Offset on the actual room temperature
measured on the user interface sensor.
[A.3.2.2]
[2-0A]
–5~5°C, step 0.1°C (default: 0°C)
Ext. room sensor offset: Only applicable if the external room sensor
option is installed and configured (see [C-08])
[A.3.2.3]
[2-09]
–5~5°C, step 0.1°C (default: 0°C)
NOTICE
Even if the room thermostat control is OFF on the user
interface, room frost protection remains active.
#
Code
Description
N/A
[2-06]
Room frost protection
0: disabled
1: enabled (default)
N/A
[2-05]
Room antifrost temperature
4~16°C (default: 12°C)
INFORMATION
During defrost operation, the shut-off valve is always
opened.
#
Code
Description
[A.3.1.1.6.1] [F-0B]
The shut-off valve:
0 (No): is NOT influenced by heating or
cooling demand.
1 (Yes)(default): closes when there is
heating or cooling demand.
#
Code
Description
[A.3.1.1.6.2] [F-0C]
The shut-off valve:
0 (No)(default): is NOT influenced by
changing the space operation mode to
cooling.
1 (Yes): closes when the space
operation mode is cooling.
