Daikin ETVZ16S18EA6V Installer's Reference Manual page 182

10 | Configuration
Emergency
Installer reference guide
182
Equilibrium
# Code
[9.3.6] [5-00]
[9.3.7] [5-01]
INFORMATION
Above 10°C ambient temperature, the heat pump will operate until 55°C. Configuring
a higher setpoint with an ambient temperature that is higher than the set
equilibrium temperature will prevent the backup heater from assisting. The backup
heater will ONLY assist if you increase the equilibrium temperature [5‑01] to the
required ambient temperature you need to reach the higher setpoint.
Operation
# Code
[9.3.8] [4‑00]
INFORMATION
Only for systems with integrated domestic hot water tank: If backup heater
operation during space heating needs to be limited but can be allowed for domestic
hot water operation, then set [4‑00] to 2.
Emergency
When the heat pump fails to operate, the backup heater can serve as an
emergency heater. It then takes over the heat load either automatically or by
manual interaction.
▪ When Emergency is set to Automatic and a heat pump failure occurs, the
backup heater automatically takes over the domestic hot water production and
space heating.
▪ When Emergency is set to Manual and a heat pump failure occurs, the
domestic hot water heating and space heating stops.
To manually recover it via the user interface, go to the Malfunctioning main
menu screen and confirm whether the backup heater can take over the heat load
or not.
Description
Equilibrium: Deactivate backup heater (or
external backup heat source in case of a bivalent
system) above the equilibrium temperature for
space heating?
▪ 0: No
▪ 1: Yes
Equilibrium temperature: Outdoor
temperature below which operation of the
backup heater (or external backup heat source in
case of a bivalent system) is allowed.
Range: –15°C~35°C
Description
Backup heater operation:
▪ 0: Restricted
▪ 1: Allowed
▪ 2: Only DHW: Backup heater operation is
enabled for domestic hot water and disabled
for space heating.
EPRA14~18DAV3+W1 + ETVZ16S18+23EA6V+9W
Daikin Altherma 3 H HT F
4P644739-1 – 2021.02