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5 Application guidelines
Installer reference guide
13
EWAQ+0 EK(2)CB
EKMB9W1
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492901-1 – 2017.06
5.2.1
Single room
Under floor heating or radiators – Wired room
thermostat
Setup
B
A
a
b
c
A
Main leaving water temperature zone
B
One single room
a
User interface used as room thermostat
b
Control box
c
Backup heater (option)
▪ The under floor heating or radiators are directly connected to the
outdoor unit – or to the backup heater, if there is one.
▪ The room temperature is controlled by the user interface, that is
connected to control box EKCB07CAV3. Possible installations:
▪ Control box EKCB07CAV3 is installed in the room and the user
interface is used as room thermostat.
▪ Control box EKCB07CAV3 is installed indoors, close to the
outdoor unit + user interface installed in the room and 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.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
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
B
A
e
d
a
b
c
A
Main leaving water temperature zone
B
One single room
a
User interface
b
Control box
c
Backup heater (option)
d
Receiver for wireless external room thermostat
e
Wireless external room thermostat
▪ The under floor heating or radiators are directly connected to the
outdoor unit – or to the backup heater, if there is one.
▪ 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.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
External room thermostat for the
main
zone:
▪ #: [A.2.2.E.5]
▪ Code: [C-05]
1 (Thermo ON/OFF): When the
used external room thermostat
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.
▪
Comfort.
In case of under floor heating, the wireless external
room thermostat prevents condensation on the floor during cooling
operation by measuring the room humidity.
Fan coil units
Setup
B
A
d
a
b
c