Daikin Altherma EHVH04S18CB3V - Page 62

8 Configuration
Installer reference guide
62
ERLQ004~008CA + EHVH/X04+08S18+26CB
Daikin Altherma – Low temperature split
4P384973-1A – 2016.02
# Code Description
[A.4.7] [0-0E]
[0-0D]
[0-0C]
[0-0B]
Weather-dependent curve
T
DHW
T
a
[0-0C]
[0-0B]
[0-0E] [0-0D]
▪ T
DHW
: The desired tank temperature.
▪ T
a
: The (averaged) outdoor ambient
temperature
▪ [0-0E]: low outdoor ambient
temperature: –40°C~5°C (default: –
10°C)
▪ [0-0D]: high outdoor ambient
temperature: 10°C~25°C (default:
15°C)
▪ [0-0C]: desired tank temperature when
the outdoor temperature equals or
drops below the low ambient
temperature: 45°C~[6‑0E]°C (default:
60°C)
▪ [0-0B]: desired tank temperature when
the outdoor temperature equals or
rises above the high ambient
temperature: 35°C~[6‑0E]°C (default:
50°C)
Limits on heat pump operation
In domestic hot water operation, following hysteresis values can be
set for the heat pump operation:
# Code Description
N/A [6-00] The temperature difference determining
the heat pump ON temperature.
Range: 2°C~20°C (default: 2°C)
N/A [6-01] The temperature difference determining
the heat pump OFF temperature.
Range: 0°C~10°C (default: 2°C)
Example: setpoint (T
U
)>maximum heat pump temperature–[6‑01]
(T
HP MAX
–[6‑01])
t
T
DHW
T
HP ON
T
HP OFF
T
HP MAX
T
U
=T
BUH OFF
[6-01]
[6-00]
T
U
= 60°C
T
HP MAX
= 50°C
[6-01] = 2°C
[6-00] = 2°C
HP
BUH
HP
5
10
20
30
40
46
48
50
60
BUH Backup heater
HP Heat pump. If heating up time by the heat pump takes too
long, auxiliary heating by the backup heater can take place
T
BUH OFF
Backup heater OFF temperature (T
U
)
T
HP MAX
Maximum heat pump temperature at sensor in domestic
hot water tank
T
HP OFF
Heat pump OFF temperature (T
HP MAX
−[6-01])
T
HP ON
Heat pump ON temperature (T
HP OFF
−[6-00])
T
DHW
Domestic hot water temperature
T
U
User set point temperature (as set on the user interface)
t Time
Example: setpoint (T
U
)≤maximum heat pump temperature–[6‑01]
(T
HP MAX
–[6‑01])
t
[6-00]
HP
5
10
20
30
40
43
45
T
U
=T
HP OFF
T
HP MAX
T
DHW
T
HP ON
50
HP Heat pump. If heating up time by the heat pump takes too
long, auxiliary heating by the booster heater can take place
T
HP MAX
Maximum heat pump temperature at sensor in domestic
hot water tank
T
HP OFF
Heat pump OFF temperature (T
HP MAX
−[6-01])
T
HP ON
Heat pump ON temperature (T
HP OFF
−[6-00])
T
DHW
Domestic hot water temperature
T
U
User set point temperature (as set on the user interface)
t Time
INFORMATION
The maximum heat pump temperature depends on the
ambient temperature. For more information, see
"14.8Operation range"on page106.
Timers for simultaneous request space and domestic hot water
operation
# Code Description
N/A [8-00] Do not change. (default: 1)
N/A [8-01] 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 = Room
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 the
setpoint has been reached.
▪ When system layout ≠ Room
thermostat control: This preset value is
always taken into account.
Range: 5~95 minutes (default: 30)
N/A [8-02] Anti-recycling time.
Minimum time between two cycles for
domestic hot water. The actual anti-
recycling time also depends on setting
[8-04].
Range: 0~10 hours (default: 3) (step: 0.5
hour) (only for EHBH/X).
Range: 0~10 hours (default: 0.5) (step:
0.5 hour) (only for EHVH/X).
Remark: The minimum time is 1/2 hour
even when the selected value is 0.