8 Configuration
Installer reference guide
68
ERHQ+ERLQ011~016 + EHVH/X11+16S18+26CB
Daikin Altherma – Low temperature split
4P384975-1C – 2018.02
▪ [F-02] Bottom plate heater ON temperature: defines the outdoor
temperature below which the bottom plate heater will be activated
by indoor unit in order to prevent ice build-up in the bottom plate of
the outdoor unit at lower outdoor temperatures.
▪ [F-03] Bottom plate heater hysteresis: defines the temperature
difference between bottom plate heater ON temperature and the
bottom plate heater OFF temperature.
Bottom plate heater
T
A
[F-02]
[F-03]
a
b
T
A
Outdoor temperature
a
On
b
OFF
CAUTION
The bottom plate heater is controlled via EKRP1HB.
#
Code
Description
N/A
[F-02]
Bottom plate heater ON temperature:
3°C~10°C (default: 3°C)
N/A
[F-03]
Hysteresis: 2°C~5°C (default: 5°C)
INFORMATION
Depending on setting [F-04], contact Y2, located on digital
I/O PCB EKRP1HB, controls the optional bottom plate
heater. See the illustration below for the schematic location
of this contact. For the complete wiring, see the wiring
diagram.
YC Y1
Y2
Y3 Y4
X1
X2
X3
X4
OFF ON
X2M
SS1
X1M
8.3.4
System settings
Priorities
For systems with separate domestic hot water tank (only for
EHBH/X
)
#
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. It is
recommended to enable this function to
shorten tank heating operation time
and guaranteed domestic hot water
comfort.
▪ 0: disabled
▪ 1: enabled
[5‑01] Equilibrium temperature and
[5‑03] Space heating priority
temperature are related to backup
heater. So, you must set [5‑03] equal or
a few degrees higher than [5‑01].
N/A
[5-03]
Space heating priority temperature.
Defines the outdoor temperature which
below the domestic hot water will be
heated by booster heater only.
Range: –15°C~35°C (default: 0°C).
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.
Range: 0°C~20°C (default: 10°C).
N/A
[C-00]
If a solar kit is installed, what has
priority to heat up the tank?
▪ 0: Solar kit
▪ 1: Heat pump
For systems with an integrated domestic hot water tank (only
for
EHVH/X
)
#
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 [5‑03] equal or
a few degrees higher than [5‑01].
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.
Содержание Altherma EHVH/X11+16S18CB
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