Daikin Altherma R Hybrid Installer's Reference Manual page 127

CHYHBH05+08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10
In case of...
One leaving water temperature zone
Two leaving water temperature zones
Shut-off valve
The following is only applicable in case of 2 leaving water temperature zones.
The shut-off valve, which is in the main leaving water temperature zone, output is
configurable.
INFORMATION
During defrost operation, the shut-off valve is ALWAYS opened.
Thermo On/OFF: the valve closes, depending on [F-0B] when there is no heating
demand from the main zone. Enable this setting to:
▪ avoid leaving water supply to the heat emitters in the main LWT zone (through
the mixing valve station) when there is request from the additional LWT zone.
▪ activate the On/OFF pump of the mixing valve station ONLY when there is
demand.
8
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...then the following applies:
▪ When the leaving water temperature
home page is OFF and the outdoor
ambient temperature drops below
4°C, then the unit will supply leaving
water to the heat emitters to heat up
the room again, and the leaving water
temperature setpoint will be lowered.
▪ When the leaving water temperature
home page is ON, the external room
thermostat is "Thermo OFF" and the
outdoor ambient temperature drops
below 4°C, then the unit will supply
leaving water to the heat emitters to
heat up the room again and the
leaving water temperature setpoint
will be lowered.
▪ When the leaving water temperature
home page is ON and the external
room thermostat is "Thermo ON",
then room frost
guaranteed by the normal logic.
▪ When the leaving water temperature
home page is OFF, and the outdoor
ambient temperature drops below
4°C, then the unit will supply leaving
water to the heat emitters to heat up
the room again, and the leaving water
temperature setpoint will be lowered.
▪ When the leaving water temperature
home page is ON, the operation mode
is "heating", and the outdoor ambient
temperature drops below 4°C, then
the unit will supply leaving water to
the heat emitters to heat up the room
again, and the
temperature setpoint will be lowered.
Configuration
protection is
leaving water
Installer reference guide
127