Daikin Altherma EPGA011-016DV Installer's Reference Manual page 61

DHW pump
# Code
[9.2.2] [D‑02] DHW pump:
▪ 0: No DHW pump: NOT installed
▪ 1: Instant hot water: Installed for
instant hot water when water is
tapped. The user sets the operation
timing of the domestic hot water pump
using the schedule. Control of this
pump is possible with the user
interface.
▪ 2:
disinfection.
disinfection function of the domestic
hot water tank is running. No further
settings are needed.
See also illustrations below.
Domestic hot water pump installed for...
Instant hot water
h
c
a
i
f
b
g
a Indoor unit
b Tank
c Domestic hot water pump
d Heater element
e Non‑return valve
f Shower
g Cold water
h Domestic hot water OUT
i Recirculation connection
DHW pump schedule
Here you can program a schedule for the DHW pump (only for field
supplied domestic hot water pump for secondary return).
Program a domestic hot water pump schedule to determine when
to turn on and off the pump.
When turned on, the pump runs and makes sure hot water is
instantly available at the tap. To save energy, only turn on the pump
during periods of the day when instant hot water is necessary.
Backup heater
Besides the type of backup heater, the voltage, configuration and
capacity must be set on the user interface.
The capacities for the different steps of the backup heater must be
set for the energy metering and/or power consumption feature to
work properly. When measuring the resistance value of each heater,
you can set the exact heater capacity and this will lead to more
accurate energy data.
Backup heater type
The backup heater is adapted to be connected to most common
European electricity grids. The type of backup heater must be set on
the user interface. For units with a built-in backup heater, the type of
heater can be viewed but not changed.
# Code
[9.3.1] [E‑03] ▪ 3: 6V
▪ 4: 9W
EPGA11~16DAV3 + EABH/X16DA6V+9W
Daikin Altherma – Low temperature split
4P556069-1 – 2018.10
Description
Disinfection: Installed for
It runs when the
Disinfection
h
c
a
i
d f
b
e g
Description
Voltage
▪ For a 6V model, this can be set to:
▪ 230V, 1ph
▪ 230V, 3ph
▪ For a 9W model, this is fixed to 400V, 3ph.
# Code
[9.3.2] [5‑0D] ▪ 0: 230V, 1ph
▪ 1: 230V, 3ph
▪ 2: 400V, 3ph
Configuration
The backup heater can be configured in different ways. It can be
chosen to have a 1-step only backup heater or a backup heater with
2 steps. If 2 steps, the capacity of the second step depends on this
setting. It can also be chosen to have a higher capacity of the
second step in emergency.
# Code
[9.3.3] [4‑0A] ▪ 1: Relay 1 / Relay 1+2
▪ 2: Relay 1 / Relay 2
▪ 3: Relay 1 / Relay 2 Emergency Relay
1+2
INFORMATION
Settings [9.3.3] and [9.3.5] are linked. Changing one
setting influences the other. If you change one, check if the
other is still as expected.
INFORMATION
During normal operation, the capacity of the second step of
the backup heater at nominal voltage is equal to
[6‑03]+[6‑04].
INFORMATION
If [4‑0A]=3 and emergency mode is active, the power
usage of the backup heater is maximal and equal to
2×[6‑03]+[6‑04].
INFORMATION
Only for systems with integrated domestic hot water tank: If
the storage temperature set point is higher than 50°C,
Daikin recommends NOT to disable the backup heater
second step because it will have a big impact on the
required time for the unit to heat up the domestic hot water
tank.
Capacity step 1
# Code
[9.3.4] [6‑03] ▪ The capacity of the first step of the
backup heater at nominal voltage.
Additional capacity step 2
# Code
[9.3.5] [6‑04] ▪ The capacity difference between the
second and first step of the backup
heater at nominal voltage. Nominal
value depends on backup heater
configuration.
8 Configuration
Description
Description
Description
Description
Installer reference guide
61