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a
[C-04]
b
T
A
[C-03]
T
Outdoor temperature
A
a
Closed
b
Open
#
Code
N/A
[C-03]
Range: –25°C~25°C (default: 0°C) (step:
1°C)
N/A
[C-04]
Range: 2°C~10°C (default: 3°C) (step:
1°C)
Possibility 2
The installer can set a temperature range ([C‑04]). Depending on the
energy prices, a calculated point T
#
Code
[7.4.5.1]
N/A
What is the high electricity
price?
[7.4.5.2]
N/A
What is the medium electricity
price?
[7.4.5.3]
N/A
What is the low electricity
price?
[7.4.6]
N/A
What is the fuel price?
NOTICE
Do NOT use overview settings!
When T
reaches the T
point, then the bivalent heat source
A
calc
permission will be active. To prevent too much switching, there is a
hysteresis of 3°C.
▪ [C‑03] ON temperature. Below this temperature, bivalent will
always be ON. T
is ignored.
calc
▪ [C‑04] Operation range between which T
3°C
a
b
T
[C-03]+[C-04]
[C-03]
calc
T
A
T
Outdoor temperature
A
T
Calculated temperature
calc
a
Closed
b
Open
#
Code
N/A
[C-03]
Range: –25°C~25°C (default: 0°C) (step:
1°C)
N/A
[C-04]
Range: 2°C~10°C (default: 3°C) (step:
1°C)
To have an optimal operation when choosing possibility 2, it is for
[C‑04] recommended to choose a higher value than the default
value. Depending on the used boiler, the boiler efficiency should be
chosen as follows:
#
Code
[A.6.A]
[7‑05]
▪ 0: Very high
▪ 1: High
▪ 2: Medium
▪ 3: Low
▪ 4: Very low
EWAQ+EWYQ004+005BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492900-1 – 2017.06
Description
changes between this range.
calc
Description
is calculated.
calc
Description
Description
INFORMATION
Electricity price can only be set when bivalent is ON
([A.2.2.6.1] or [C-02]). These values can only be set in
menu structure [7.4.5.1], [7.4.5.2] and [7.4.5.3]. Do NOT
use overview settings.
INFORMATION
Boiler efficiency [A.6.A] or [7‑05] becomes visible when
bivalent is ON ([A.2.2.6.1] or [C‑02]).
CAUTION
Make sure to observe all rules mentioned in application
guideline 5 when bivalent operation function is enabled.
Daikin shall NOT be held liable for any damage resulting
from failure to observe this rule.
INFORMATION
The permission signal for the auxiliary boiler is located on
X8M/3+4 of option box EK2CB07CAV3. When it is
activated, contact X8M/3+4 is closed. When it is
deactivated, X8M/3+4 is open. See the illustration below
for the schematic location of this contact.
X8M
3 4
8.3.3
System settings
Auto-restart
When power returns after a power supply failure, the auto restart
function reapplies the user interface settings at the time of the power
failure. Therefore, it is recommended to always enable this function.
If the power supply might get interrupted (e.g. preferential kWh rate
power supply), always enable the auto restart function. Continuous
control of the hydro part of the outdoor unit can be guaranteed
independent of the preferential kWh rate power supply status, by
connecting the hydro part of the outdoor unit to a normal kWh rate
power supply.
#
Code
[A.6.1]
[3‑00]
Is the auto restart function of the unit
allowed?
▪ 0: No
▪ 1 (default): Yes
8 Configuration
Description
Installer reference guide
59
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