Daikin EWAA016DAV3P - Page 31

6 | Application guidelines
Installer reference guide
31
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620242-1 – 2020.06
Fan coil units
Setup
A
B
a
b
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 unit"[478].
▪ 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 Value
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
1 (External room thermostat):
Unit operation is decided by the
external thermostat.
Number of water temperature zones:
▪ #: [4.4]
▪ Code: [7-02]
0 (Single zone): Main
External room thermostat for the main
zone:
▪ #: [2.A]
▪ Code: [C-05]
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.
Benefits
▪ Cooling. The fan coil unit offers, besides heating capacity, also excellent cooling
capacity.
▪ Efficiency. Optimal energy efficiency because of the interlink function.