
10
|
Configuration
Installer reference guide
154
E EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09
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
"7.1.2 Additional installation
site requirements of the outdoor unit in cold climates"
58] 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
10.4.4 System settings
Priorities
For systems with an integrated domestic hot water tank
#
Code
Description
N/A
[5‑02]
Space heating priority.
Defines whether backup heater will assist the
heat pump during domestic hot water
operation.
Consequence: Shorter tank heating operation
time and shorter interruption of the space
heating cycle.
This setting MUST always be 1.
[5‑01] Equilibrium temperature and [5‑03]
Space heating priority temperature are related
to backup heater. So, you must set [5‑03] equal
or a few degrees higher than [5‑01].
If the backup heater operation is limited
([4‑00]=0) and the outdoor temperature is
lower than setting [5‑03], the domestic hot
water will not be heated with the backup
heater.
N/A
[5‑03]
Space heating priority temperature.
Defines the outdoor temperature which below
the backup heater will assist during domestic
hot water heating.