8 Configuration
Installer reference guide
53
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA
Daikin Altherma – Low temperature split
4P495248-1 – 2017.12
Under leaving water temperature control, room frost protection is
NOT guaranteed. However, if room antifrost [1.4] is activated, limited
frost protection by the unit is possible:
If...
Then...
Space heating/cooling is OFF
and the outdoor ambient
temperature drops below 4°C
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.
Space heating/cooling is ON and
the operation mode is "heating"
The unit will supply leaving water
to the heat emitters to heat up
the room according to normal
logic.
Space heating/cooling is ON and
the operation mode is "cooling"
There is no room frost protection.
External room thermostat control
([C‑07]=1)
Under external room thermostat control, room frost protection is
guaranteed by the external room thermostat, provided that Space
heating/cooling [C.2] is turned ON and the emergency setting [9.5] is
set to automatic.
In case of one leaving water temperature zone:
If...
Then...
Space heating/cooling is OFF
and the outdoor ambient
temperature drops below 4°C
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.
Space heating/cooling is ON, the
external room thermostat is
"Thermo OFF" and the outdoor
temperature drops below 4°C
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.
Space heating/cooling is ON and
the external room thermostat is
"Thermo ON"
Room frost protection is
guaranteed by the normal logic.
In case of two leaving water temperature zones:
If...
Then...
Space heating/cooling is OFF
and the outdoor ambient
temperature drops below 4°C
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.
Space heating/cooling is ON, the
external room thermostat is
"Thermo OFF", the operation
mode is "heating" and the
outdoor temperature drops below
4°C
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.
Space heating/cooling is ON and
the operation mode is "cooling"
There is no room frost protection.
Room thermostat control ([C‑07]=2)
During room thermostat control, room frost protection is guaranteed
if it is enabled. When room frost protection [2‑06] is activated 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
Description
[1.4.1]
[2-06]
Activation:
▪ 0 No: Antifrost functionality is OFF.
▪ 1 Yes: Antifrost functionality is on.
[1.4.2]
[2-05]
Room setpoint 4°C~16°C
INFORMATION
When the user interface used as room thermostat is
disconnected (due to miswiring, damage of the cable), then
room frost protection is NOT guaranteed.
NOTICE
If Emergency is set to Manual ([9.5]=0), and the unit is
triggered to start emergency operation, the unit will stop
and need to be recovered manually via the user interface.
To recover operation manually, go to the Malfunctioning
main menu screen, where the user interface will then ask
you to confirm emergency operation before starting.
Room frost protection is active even if the user does NOT
confirm emergency operation.
Setpoint range
ONLY applicable in room thermostat control. 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.
NOTICE
When adjusting the room temperature ranges, all desired
room temperatures are also adjusted to guarantee they are
between the limits.
#
Code
Description
[1.5.1]
[3-07]
Heating minimum
[1.5.2]
[3-06]
Heating maximum
[1.5.3]
[3-09]
Cooling minimum
[1.5.4]
[3-08]
Cooling maximum
Room sensor 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 used as room thermostat or by the external room sensor.
The settings can be used to compensate for situations where the
user interface used as room thermostat or the external room sensor
CANNOT be installed on the ideal installation location (see
"5.7 Setting up an external temperature sensor" on page 20
).
#
Code
Description
[1.6]
[2-0A]
Room sensor offset (user interface used
as room thermostat): Offset on the actual
room temperature measured on the user
interface used as room thermostat.
▪ –5°C~5°C, step 0.5°C
[1.7]
[2-09]
Room sensor offset (external room
sensor option): ONLY applicable if the
external room sensor option is installed
and configured.
▪ –5°C~5°C, step 0.5°C
8.4.3
Main zone
Setpoint screen
You can set the leaving water temperature for the main zone using
the setpoint screen. For more information about how to do this, see
"8.3.5 Setpoint screen" on page 50
.
Schedule
Indicates if the desired leaving water temperature is according to a
schedule. Influence of the LWT setpoint mode [2.4] is as follows:
▪ In Fixed LWT setpoint mode, the scheduled actions consist of
desired leaving water temperatures, either preset or custom.
▪ In Weather dependent LWT setpoint mode, the scheduled actions
consist of desired shift actions, either preset or custom.
Final English - Tanslations in progress
