Daikin EWYA004D2V3P Installer's Reference Manual page 32

6 | Application guidelines
Combination: Underfloor heating + Fan coil units – Multiple rooms
Installer reference guide
32
Configuration
Setting
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
Number of water temperature zones:
▪ #: [4.4]
▪ Code: [7-02]
Benefits
Compared with fan coil units for one room:
▪ Comfort. You can set the desired room temperature, including schedules, for
each room via the remote controller of the fan coil unit.
Setup
A Main leaving water temperature zone
B Room 1
C Room 2
a User interface (delivered as accessory)
b External room thermostat
c 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
▪ For each room with fan coil units: The fan coil units are directly connected to the
outdoor unit – or to the external backup heater kit, if there is one.
▪ For each room with underfloor heating: Two shut-off valves (field supply) are
installed before the underfloor heating:
- A shut-off valve to prevent hot water supply when the room has no heating
demand
- A shut-off valve to prevent condensation on the floor during cooling operation
of the rooms with fan coil units.
▪ For each room with fan coil units: The desired room temperature is set via the
remote controller of the fan coil units.
▪ For each room with underfloor heating: The desired room temperature is set via
the external room thermostat (wired or wireless).
1 (External room thermostat):
Unit operation is decided by the
external thermostat.
0 (Single zone): Main
B
A
M1
M1
a
4
unit" [ 76].
Value
C
c
b
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09