EHVH/X16
Daikin Altherma - Low Temperature Split
4P313777-1 – 2012.05
Installer reference guide
48
8 Configuration
8.3.4 System settings
Priorities
For systems with separate domestic hot water tank (only for
EHBH/X
)
For systems with an integrated domestic hot water tank (only for
EHVH/X
)
Auto-restart
When power returns after a power supply failure, the auto restart
function reapplies the remote controller settings at the time of the
power failure. Therefore, Daikin recommends to always enable the
function.
If the preferential kWh rate power supply is of the type that power
supply is interrupted, always enable the auto restart function.
Continuous indoor unit control can be guaranteed independent of the
preferential kWh rate power supply status, by connecting the indoor
unit to a normal kWh rate power supply.
Preferential kWh rate power supply
Only for EHBH + EKHW*:
Only for EHVH: Do NOT use 1 or 3.
#
Code
Description
N/A
[5-02]
Space heating priority.
Defines whether domestic hot water is
made by booster heater only when
outdoor temperature is below space
heating priority temperature.
Q
0: disabled
Q
1: enabled
[5-01] Equilibrium temperature and [5-
03] Space heating priority temperature
are related to backup heater. So, you
must set [5-01] and [5-03] to the same
value.
[5-03]
Space heating priority temperature.
Defines the outdoor temperature which
below the domestic hot water will be
heated by booster heater only.
N/A
[5-04]
Set point correction for domestic hot
water temperature: set point correction
for the desired domestic hot water
temperature, to be applied at low
outdoor temperature when space
heating priority is enabled. The
corrected (higher) set point will make
sure that the total heat capacity of the
water in the tank remains
approximately unchanged, by
compensating for the colder bottom
water layer of the tank (because the
heat exchanger coil is not operational)
with a warmer top layer.
[A.6.1.2]
[C-00]
If a solar kit is installed, what has
priority to heat up the tank?
Q
0: Solar kit
Q
1: Heat pump
[A.6.1.1.1]
[C-01]
If there is a simultaneous demand for
space heating/cooling and domestic hot
water heating (by heat pump), which
operation mode has priority?
Q
0: The operation mode with the
highest request has priority.
Q
1: Always space heating/cooling
has priority.
#
Code
Description
N/A
[5-02]
Space heating priority.
Defines whether backup heater will
assist the heat pump during domestic
hot water operation.
Consequence: Shorter tank heating
operation time and shorter interruption
of the space heating cycle.
This setting MUST always be 1.
[5-01] Equilibrium temperature and [5-
03] Space heating priority temperature
are related to backup heater. So, you
must set [5-01] and [5-03] to the same
value.
If the backup heater operation is limited
([4-00]=0) and the outdoor temperature
is lower than setting [5-03], the
domestic hot water will not be heated
with the backup heater.
N/A
[5-03]
Space heating priority temperature.
Defines the outdoor temperature which
below the backup heater will assist
during domestic hot water heating.
[A.6.1.2]
[C-00]
If a solar kit is installed, what has
priority to heat up the tank?
Q
0: Solar kit
Q
1: Heat pump
[A.6.1.1.1]
[C-01]
If there is a simultaneous demand for
space heating/cooling and domestic hot
water heating (by heat pump), which
operation mode has priority?
Q
0: The operation mode with the
highest request has priority.
Q
1: Always space heating/cooling
has priority.
#
Code
Description
[A.6.1]
[3-00]
Auto restart function:
Q
0: Enabled
Q
1: Disabled
#
Code
Description
[A.6.2.1]
[d-00]
Which heaters are allowed to operate
during preferential kWh rate power
supply?
Q
0 (default): None
Q
1: Booster heater only
Q
2: Backup heater only
Q
3: All heaters
Only for EHBH + EKHW*: See table
below.
Only for EHVH: See table below.
Settings 1, 2 and 3 are only meaningful if
the preferential kWh rate power supply is
of type 1 or indoor unit is connected to a
normal kWh rate power supply (via 30-31
X2M) and the backup heater and booster
heater are NOT connected to the
preferential kWh rate power supply.
[d-00]
Booster heater
Backup heater
Compressor
0 (default)
Forced OFF
Forced OFF
Forced OFF
1
Permitted
2
Forced OFF
Permitted
3
Permitted
[d-00]
Backup heater
Compressor
0 (default)
Forced OFF
Forced OFF
2
Allowed
#
Code
Description
