Daikin Altherma Installer's Reference Manual page 58

8 Configuration
Booster heater and heat pump operation
For systems with separate domestic hot water tank (only for
EHBH/X)
# Code
N/A [4-03] Defines the operation permission of the
booster heater depending on ambient,
domestic hot water temperature or
operation mode of heat pump. This
setting is only applicable in reheat mode
for applications with separate domestic
hot water tank.
▪ 0: Booster heater operation is NOT
allowed
function"
water heating".
Only use this in case the capacity of
the heat pump can cover the heating
requirements
domestic hot water over the complete
heating season.
If the outdoor temperature is below
setting
domestic hot water will not be heated.
The domestic hot water temperature
can be maximum the heat pump OFF
temperature.
▪ 1: Booster heater operation is allowed
when required.
▪ 2: The booster heater is allowed
outside the operation range of the heat
pump
operation.
Booster
allowed if:
▪ Ambient temperature is out of the
▪ Domestic hot water temperature is
The booster heater will be allowed to
operate when T
status of [5-02].
If bivalent operation is enabled and
permission signal for auxiliary boiler is
ON, the booster heater will be restricted
even when T
▪ 3 (default): The booster heater is
allowed when the heat pump is NOT
active in domestic hot water operation.
Same as setting 1, but simultaneous
heat
operation
operation is not allowed.
When setting [4-03]=1/2/3, the booster
heater operation can still be restricted by
the booster heater allowance schedule.
N/A [7-00] Overshoot temperature. Temperature
difference above the domestic hot water
set point temperature before the booster
heater is turned OFF. The domestic hot
water tank temperature will increase with
[7-00] above selected temperature
set point.
Range: 0~4°C (default: 0)
N/A [7-01] Hysteresis. Temperature difference
between booster heater ON and booster
heater OFF temperature. The minimum
hysteresis temperature is 2°C.
Range: 2~40°C (default: 2)
Installer reference guide
58
Description
except for "Disinfection
and "Powerful domestic
of the house
[5-03] and [5-02]=1,
for domestic hot water
heater operation is
operating range: T <[5-03]
a
T >35°C
a
2°C lower than the heat pump OFF
temperature.
<[5-03] depends of the
a
<[5-03]. See [C-02].
a
pump domestic hot water
and booster heater
# Code
N/A [6-00]
N/A [6-01]
T
DHW
T
73
BH OFF
T
71
BH ON
T
70
U
60
T
50
HP MAX
T 48
HP OFF
T
41
HP ON
40
and
30
20
the
HP
10
5
BH Booster heater
HP Heat pump. If heating up time by the heat pump
takes too long, auxiliary heating by the booster
heater can take place
T Booster heater OFF temperature (T
BH OFF
T Booster heater ON temperature (T
only
BH ON
T Maximum heat pump temperature at sensor in
HP MAX
domestic hot water tank
T Heat pump OFF temperature (T
HP OFF
or
T Heat pump ON temperature (T
HP ON
T Domestic hot water temperature
DHW
T User set point temperature (as set on the user
U
interface)
t Time
Timers
# Code
N/A [8-00]
N/A [8-01]
Description
The temperature difference determining
the heat pump ON temperature.
Range: 2~20°C (default: 2)
The temperature difference determining
the heat pump OFF temperature.
Range: 0~10°C (default: 2)
[7-00] [7-01]
[6-01]
[6-00]
T = 70°C
U
[7-00] = 3°C
BH HP
[6-01] = 2°C
[6-00] = 7°C
+[7-00])
U
−[7-01])
BH OFF
−[6-01])
HP MAX
−[6-00])
HP OFF
Description
Minimum running time for domestic hot
water operation. During this time, space
heating/cooling is NOT allowed, even
when the target domestic hot water
temperature has been reached.
Range: 0~20 minutes (default: 5)
Maximum running time for domestic hot
water operation. Domestic hot water
heating stops even when the target
domestic hot water temperature is NOT
reached. The actual maximum running
time also depends on setting [8-04].
▪ When system layout =
thermostat control: This preset value is
only taken into account if there is a
request for space heating or cooling. If
there is NO request for space heating/
cooling, the tank is heated until heat
pump OFF temperature.
▪ When system layout ≠
thermostat control: This preset value is
always taken into account.
Range: 5~95 minutes (default: 30)
ERLQ004~008CAV3 + EHBH/X04+08CA
Daikin Altherma - Low Temperature Split
4P313774-1C – 2012.11
t
Room
Room