Daikin EWYA004D2V3P Installer's Reference Manual page 28

6 | Application guidelines
Fan coil units
Installer reference guide
28
Setup
A Main leaving water temperature zone
B One single room
a User interface (delivered as accessory)
b Remote controller of the fan coil units
▪ For more information about connecting the electrical wiring to the unit, see
"9.2 Connections to the outdoor
▪ The fan coil units are directly connected to the outdoor unit – or to the external
backup heater kit, if there is one.
▪ The desired room temperature is set via the remote controller of the fan coil
units.
▪ The space heating/cooling demand signal is sent to one digital input on the
outdoor unit (X2M/35 and X2M/30).
▪ The space operation mode is sent to the fan coil units by one digital output on
the outdoor unit (X2M/4 and X2M/3).
INFORMATION
When using multiple fan coil units, make sure each one receives the infrared signal
from the remote controller of the fan coil units.
Configuration
Setting
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
Number of water temperature zones:
▪ #: [4.4]
▪ Code: [7-02]
External room thermostat for the main
zone:
▪ #: [2.A]
▪ Code: [C-05]
Benefits
▪ Cooling. The fan coil unit offers, besides heating capacity, also excellent cooling
capacity.
▪ Efficiency. Optimal energy efficiency because of the interlink function.
B
A
a
b
4
unit" [ 76].
1 (External room thermostat):
Unit operation is decided by the
external thermostat.
0 (Single zone): Main
1 (1 contact): When the used
external room thermostat or fan coil
unit can only send a thermo ON/OFF
condition. No separation between
heating or cooling demand.
Value
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09