Daikin Altherma EHY2KOMB28AA Installation And Operation Manual page 25

Domestic hot water comfort function
Not applicable for Switzerland
This function can be operated with the domestic hot water comfort
key ( ). The following functions are available:
▪ On: The LED lights up. The domestic hot water comfort function
is switched on. The heat exchanger will be kept on temperature to
assure instant delivery of hot water.
▪ Eco: The LED lights up. The domestic hot water comfort
function is self-learning. The appliance will learn to adapt to the
pattern of use of hot tap water. For example: the temperature of
the heat exchanger will NOT be maintained during the night or in
case of long absence.
▪ Off: Both LED's are OFF. The temperature of the heat exchanger
is NOT maintained. For example: It will take a while to deliver hot
water to the hot water taps. If there is no need for immediate hot
water delivery, the domestic hot water comfort function can be
turned off.
To reset the gas boiler
INFORMATION
Resetting is only possible when an error occurs.
Prerequisite: Flashing LED above the
on the main display.
Prerequisite: Check the meaning of the error code (see
codes of the gas boiler" on page 35) and resolve the cause.
1 Press to restart the gas boiler.
Maximum space heating supply temperature
See the user reference guide for more details.
Domestic hot water temperature
See the user reference guide for more details.
Keep hot function
The reversible heat pump features a keep hot function that keeps
the heat exchanger hot continuously to prevent sweat from occurring
in the gas boiler switch box.
Parameters on the gas boiler
Parameter Setting
Service code
Installation type
Space heating pump continuous
EHY2KOMB28+32AA
Daikin Altherma hybrid monobloc – Gas boiler module
4P538953-1 – 2018.06
button and an error code
"Error
Range
—
0~3
0~3
In case of heating only models, this function can be deactivated
through the parameter settings of the gas boiler.
INFORMATION
Do NOT deactivate the keep hot function if the gas boiler is
connected to a reversible indoor unit. It is recommended to
always deactivate the keep hot function if the gas boiler is
connected to a heating only indoor unit.
It is recommended to always deactivate the keep hot function.
Frost protection function
The boiler is equipped with an internal frost protection function that
automatically operates when necessary, even if the boiler is turned
off. If the heat exchanger temperature drops too low, the burner will
switch on until the temperature is sufficiently high again. When frost
protection is active, is displayed on the service display.
To set the parameters via the service code
The gas boiler is factory set in accordance with the default settings.
Take into account the remarks in the table below when changing the
parameters.
1 Press simultaneously on
and the service display.
2 Use the and buttons to set
display.
3 Press the button to set the parameter on the service display.
4 Use the and buttons to set the parameter to the desired
value on the service display.
5 When all settings are done, press
service display.
Result: The gas boiler has now been reprogrammed.
INFORMATION
▪ Press the button to exit the menu without storing the
parameter changes.
▪ Press the button to load the default settings of the
gas boiler.
Default Description
settings
— To access the installer settings, enter
the service code (=15)
0 ▪ 0=Combi
▪ 1=Heating only + external domestic
hot water tank
▪ 2=Domestic hot water only (no
heating system required)
▪ 3=Heating only
It is recommended not to modify this
setting.
0 ▪ 0=Post purge period only
▪ 1=Pump continuously active
▪ 2=Pump continuously active with
MIT switch
▪ 3=Pump on with external switch
This setting has no effect.
7 Configuration
and until appears on the main
(service code) on the main
until appears on the
Installation and operation manual
25