Installation and operating instructions
28
DAIKIN EKHHP(3/5)00AA2V3
DAIKIN Hot water heat pump
008.1423444_05 – 08/2016
7
x
Operation, Parameters
[3] - Other points
The following setting options are available:
– [3-00] Automatic restart after a power failure:
– 0 = DAIKIN hot water heat pump starts in "Stand-by"
mode. The timer function is not active.
– 1 = DAIKIN hot water heat pump restarts with the previ-
ously stipulated user settings.
– [3-01] Access authorisation: Do not change the set value.
– [3-02] Hot water set temperature > 60 °C:
– 0 = Setting > 60 °C not possible.
– 1 = Setting > 60 °C possible.
[4] - Operation electrical Booster-Heater (BSH)
The following setting options are available:
– [4-03] Simultaneous operation of the electrical Booster
Heater (BSH) and the heat pump.
– 0 = Not possible.
– 1 = Is possible only when in operating mode "Low Noise".
– 2 = Is possible only when in operating mode "High Out-
put".
– 3 = Is possible when in operating mode "Low Noise" and
operating mode "High Output".
[6] - Hysteresis for hot water heating
These parameter settings determine the temperature thresholds
at which heating the hot water is started and stopped by the heat
pump (ON temperature and OFF temperature of the heat pump).
If the water temperature falls below the ON temperature of the
heat pump (T
HP ON
), heating the hot water with the heat pump is
started.
As soon as the hot water temperature reaches the OFF temper-
ature of the heat pump (T
HP OFF
) or the hot water set temperature
(T
U
), the heating of the hot water by the heat pump is stopped.
The following setting options are available:
– [6-00] Start: Temperature difference (switching hysteresis)
that determines the ON temperature of the heat pump (T
HP
ON
). The set value is only evaluated in the "ECO" operating
mode.
– [6-01] Stop: Temperature difference that determines the OFF
temperature of the heat pump (T
HP OFF
).
– [6-02] GCO (BSH): determines when the Booster-Heater
(BSH) can be started after the heat pump is switched on. This
setting is only effective if simultaneous operation of the
Booster Heater (BSH) and the heat pump is permitted ([4-03]
is not set to 0).
– [6-03] Priority of "High Output" operating mode: stipulates the
priority if the operating modes "Low Noise" and "High Output"
are active at the same time.
– [6-04] Stages in the operating mode"Low Noise":
– 1 = Lowest noise reduction.
– 2 = Medium noise reduction.
– 3 = Highest noise reduction.
[7-00] - High/low tariff mains connections (HT/NT) /
Smart Grid connection (SG)
These parameters facilitate the configuration of the DAIKIN hot
water heat pump with an existing high/low tariff mains connection
and Smart Grid connection.
As soon as the function is activated by the parameter [7-00] > 0,
the operation of the DAIKIN hot water heat pump is changed, de-
pending on the switch position of the connected potential-free ex-
ternal switching contact.
If the DAIKIN hot water heat pump is connected to
a high/low tariff mains connection, where the power
supply is interrupted, this parameter must be set to
"1".
The maximum hot water set temperature is limited
to 55°C when working exclusively with a heat pump.
A hot water set temperature >55 °C is only possible when
using an electrical Booster Heater (BSH).
An ON temperature > 45 °C makes sure that only
the electric Booster-Heater (BSH) is used and not
the heat pump. This increases the usage duration of
the refrigerant compressor.
In the operating modes "ECO" and "Automatic" the hot water
heating mode only starts when the measured hot water tem-
perature falls below 45 °C.
T
Water temperature
T
HP MAX
Maximum water temperature of the heat pump at the tem-
perature sensor in the hot water storage tank (55°C)
T
HP OFF
OFF temperature of the heat pump
T
HP ON
ON temperature of heat pump
T
U
hot water temperature (as set on the controller)
Fig. 7-5
Illustration of the control system for hot water generation by
the heat pump
Settings
Operat-
ing
mode
Operating mode
[6-03]
Off
[6-04] = 1 [6-04] = 2 [6-04] = 3
0
OFF
normal
Low Noise 1 Low Noise 2 Low Noise 3
ON
High output
normal
Low Noise 1 Low Noise 2
1
OFF
normal
Low Noise 1 Low Noise 2 Low Noise 3
ON
High output High output High output High output
Tab. 7-2 Overview of operating modes "Low Noise" and "High
Output" with simultaneous activation
If [6-03] is set to "1", the operating mode "High Out-
put" has priority over the operating mode "Low
Noise".
