8 Configuration
Installer reference guide
61
ERGA04~08DAV3(A) + 08S23DAV
Daikin Altherma – Low temperature split
4P499573-1A – 2018.11
#
Code
Description
[5.6]
[6-0D]
Heat up mode
▪ 0: Reheat only: Only reheat operation
is allowed.
▪ 1: Schedule + reheat: The domestic
hot water tank is heated according to a
schedule and between the scheduled
heat up cycles, reheat operation is
allowed.
▪ 2: Schedule only: The domestic hot
water tank can ONLY be heated
according to a schedule.
See the operation manual for more details.
Disinfection
Applies only to installations with a domestic hot water tank.
The disinfection function disinfects the domestic hot water tank by
periodically heating the domestic hot water to a specific temperature.
CAUTION
The disinfection function settings MUST be configured by
the installer according to the applicable legislation.
#
Code
Description
[5.7.1]
[2‑01]
Activation
▪ 0: No
▪ 1: Yes
[5.7.2]
[2‑00]
Operation day
▪ 0: Every day
▪ 1: Monday
▪ 2: Tuesday
▪ 3: Wednesday
▪ 4: Thursday
▪ 5: Friday
▪ 6: Saturday
▪ 7: Sunday
[5.7.3]
[2‑02]
Start time
[5.7.4]
[2‑03]
Tank setpoint
70°C
[5.7.5]
[2‑04]
Duration
5~60 minutes
00.00
22.00
24.00
01.00
23.00
t
T
DHW
T
H
T
U
[2-02]
[2-03]
[2-04]
T
DHW
Domestic hot water temperature
T
U
User set point temperature
T
H
High set point temperature [2-03]
t
Time
WARNING
Be aware that the domestic hot water temperature at the
hot water tap will be equal to the value selected in field
setting [2-03] after a disinfection operation.
When the high domestic hot water temperature can be a
potential risk for human injuries, a mixing valve (field
supply) shall be installed at the hot water outlet connection
of the domestic hot water tank. This mixing valve shall
secure that the hot water temperature at the hot water tap
never rise above a set maximum value. This maximum
allowable hot water temperature shall be selected
according to the applicable legislation.
CAUTION
Be sure that the disinfection function start time [5.7.3] with
defined duration [5.7.5] is NOT interrupted by possible
domestic hot water demand.
CAUTION
BSH allowance schedule [9.4.2] is used to restrict or allow
anti-legionella heater operation based on a weekly
program. Advice: In order to avoid unsuccessful
disinfection function, at least allow the anti-legionella
heater (by the weekly program) for minimum 4 hours
starting from the scheduled start-up of disinfection. If the
anti-legionella heater is restricted during disinfection, this
function will NOT be successful and the applicable warning
AH will be generated.
INFORMATION
In case of error code AH and no interruption of the
disinfection function occurred due to domestic hot water
tapping, following actions are recommended:
▪ When the Domestic hot water > Type > Reheat or
Reheat + sched. is selected, it is recommended to
program the start-up of the disinfection function at least
4 hours later than the last expected large hot water
tapping. This start-up can be set by installer settings
(disinfection function).
▪ When the Domestic hot water > Type > Scheduled only
is selected, it is recommended to program a Storage
eco 3 hours before the scheduled start-up of the
disinfection function to preheat the tank.
INFORMATION
Disinfection function is restarted in case the domestic hot
water temperature drops 5°C below the disinfection target
temperature within the duration time.
INFORMATION
An AH error occurs if you turn off domestic hot water
operation during disinfection.
Maximum DHW temperature setpoint
The maximum temperature that users can select for the domestic
hot water. You can use this setting to limit the temperatures at the
hot water taps.
INFORMATION
During disinfection of the domestic hot water tank, the
DHW temperature can exceed this maximum temperature.
INFORMATION
Limit the maximum hot water temperature according to the
applicable legislation.
