7 Application guidelines
Installer reference guide
18
EJHA EHY32AA
Daikin Altherma Hybrid hydrosplit heat pump
4P531180-1 – 2018.06
7.2.1
Single room
Under floor heating or radiators – Wired room
thermostat
Setup
A
B
a
A
Main leaving water temperature zone
B
One single room
a
User interface used as room thermostat
▪ The outdoor unit is connected in series with the gas boiler.
▪ The under floor heating or radiators are directly connected to the
gas boiler.
▪ The room temperature is controlled by the user interface, which is
used as room thermostat.
Configuration
Setting
Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
Benefits
▪
Cost effective.
You do NOT need an additional external room
thermostat.
▪
Highest comfort and efficiency
. The smart room thermostat
functionality can decrease or increase the desired leaving water
temperature based on the actual room temperature (modulation).
This results in:
▪ Stable room temperature matching the desired temperature
(higher comfort)
▪ Less ON/OFF cycles (more quiet, higher comfort and higher
efficiency)
▪ Lowest possible leaving water temperature (higher efficiency)
▪
Easy
. You can easily set the desired room temperature via the
user interface:
▪ For your daily needs, you can use preset values and schedules.
▪ To deviate from your daily needs, you can temporarily overrule
the preset values and schedules, use the holiday mode.
Under floor heating or radiators – Wireless room
thermostat
Setup
A
B
b
c
a
A
Main leaving water temperature zone
B
One single room
a
User interface
b
Receiver for wireless external room thermostat
c
Wireless external room thermostat
▪ The outdoor unit is connected in series with the gas boiler.
▪ The under floor heating or radiators are directly connected to the
gas boiler.
▪ The room temperature is controlled by the wireless external room
thermostat (optional equipment EKRTR1).
Configuration
Setting
Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
External room thermostat for the
main
zone:
▪ #: [A.2.2.4]
▪ Code: [C-05]
1 (Thermo ON/OFF): When the
used external room thermostat or
heat pump convector can only
send a thermo ON/OFF
condition.
Benefits
▪
Wireless.
The Daikin external room thermostat is available in a
wireless version.
▪
Efficiency.
Although the external room thermostat only sends ON/
OFF signals, it is specifically designed for the heat pump system.
Heat pump convectors
Setup
a
A
B
b
A
Main leaving water temperature zone
B
One single room
a
User interface
b
Remote controller of the heat pump convectors
▪ The outdoor unit is connected in series with the gas boiler.
▪ The heat pump convectors are directly connected to the gas
boiler.
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
