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Configuration
Installer reference guide
129
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1A – 2020.05
You can set the following values based on the outdoor temperature:
#
Code
Description
N/A
[C-03]
Bivalent activation temperature: defines the
outdoor temperature below which the
permission signal for the auxiliary boiler is active
(X1 and X2 on EKRP1HBAA is closed) and space
heating by indoor unit is stopped.
–25°C~25°C
N/A
[C-04]
Bivalent hysteresis temperature: defines the
temperature difference between the ON
temperature and the OFF temperature.
2°C~10°C
Permission signal X1–X2
T
A
[C-03]
[C-04]
a
b
T
A
Outdoor temperature
[C-03]
Bivalent ON temperature (fixed)
a
Auxiliary boiler active
b
Auxiliary boiler inactive
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.
Backup heater only ambient temperature
The outdoor unit heat pump can operate until an ambient temperature of –7°C by
default. Depending on the installation area of the outdoor unit, you may want to
lower the ambient temperature setting to –15°C. In this case, the backup heater
will take over operation from the outdoor unit. See
"6.1.2 Additional installation
site requirements of the outdoor unit in cold climates"
39] for more information.
Under certain conditions, the installation of EKBPHT03D may be required.
#
Code
Description
A.5.1.5
[8-0E]
BUH only ambient temp.
Range: –15°C~7°C
9.4.4 System settings
Priorities
For systems with an integrated domestic hot water tank
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