Multiple Rooms - One Lwt Zone - Daikin EWAQ006BAVP Installer's Reference Manual

5 Application guidelines
A Main leaving water temperature zone
B One single room
a User interface
b Control box
c Backup heater (option)
d Remote controller of the fan coil units
▪ Space cooling or heating is provided by the fan coil units.
▪ The desired room temperature is set via the remote controller of
the fan coil units.
▪ A space heating/cooling demand signal is sent to one digital input
on control box EKCB07CAV3 (X2M/1 and X2M/2) (if this signal is
available on the fan coil units and compatible with the control box).
▪ The space operation mode can be sent to the fan coil units by one
digital output on control box EKCB07CAV3 (X8M/6 and X8M/7) (if
this signal is compatible with the fan coil units).
▪ The main user interface (connected to control box EKCB07CAV3)
decides the space operation mode. Mind that the space operation
mode of the additional user interfaces (used as room thermostat)
must be set to match that of the main user interface.
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:
▪ #: [A.2.1.7]
▪ Code: [C-07]
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
External room thermostat for the
main zone:
▪ #: [A.2.2.E.5]
▪ 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.
▪ Stylish.
Combination: Under floor heating + Fan coil units
▪ Space heating is provided by:
▪ The under floor heating
▪ The fan coil units
▪ Space cooling is provided by the fan coil units only. The
under floor heating is shut off by the shut-off valve.
Installer reference guide
14
Value
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
0 (1 LWT zone): Main
1 (Thermo ON/OFF): When the
used external room thermostat or
fan coil unit can only send a
thermo ON/OFF condition.
Setup
c
b
a
A Main leaving water temperature zone
B One single room
a User interface
b Control box
c Backup heater (option)
d Remote controller of the fan coil units
▪ The fan coil units are directly connected to the outdoor unit – or to
the backup heater, if there is one.
▪ A shut-off valve (field supply) is installed before the under floor
heating to prevent condensation on the floor during cooling
operation.
▪ The desired room temperature is set via the remote controller of
the fan coil units.
▪ A space heating/cooling demand signal is sent to one digital input
on control box EKCB07CAV3 (X2M/1 and X2M/2) (if this signal is
available on the fan coil unit and compatible with the control box).
▪ The space operation mode can be sent by one digital output
(X8M/6 and X8M/7) on control box EKCB07CAV3 to:
▪ The fan coil units (if this signal is compatible with the fan coil
units).
▪ The shut-off valve
Configuration
Setting
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
External room thermostat for the
main zone:
▪ #: [A.2.2.E.5]
▪ Code: [C-05]
Benefits
▪ Cooling. Fan coil units provide, besides heating capacity, also
excellent cooling capacity.
▪ Comfort. The combination of the two heat emitter types provides:
▪ The excellent heating comfort of the under floor heating
▪ The excellent cooling comfort of the fan coil units
5.2.2 Multiple rooms – One LWT zone
If only one leaving water temperature zone is needed because the
design leaving water temperature of all heat emitters is the same,
you do NOT need a mixing valve station (cost effective).
Example: If the heat pump system is used to heat up one floor
where all the rooms have the same heat emitters.
EWAQ+EWYQ006+008BAVP + EK(2)CB07CAV3 +
Packaged air-cooled water chillers and packaged air to water heat
A
B
M1
d
Value
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
0 (1 LWT zone): Main
1 (Thermo ON/OFF): When the
used external room thermostat or
fan coil unit can only send a
thermo ON/OFF condition.
EKMBUHCA3V3+9W1
pumps
4P492901-1 – 2017.06