Daikin ERLQ004~008CAV3 Reference Manual page 10

5 Application guidelines
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.
Heat pump convectors
Setup
A
B
A Main leaving water temperature zone
B One single room
a Remote controller of the heat pump convectors
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
▪ The space heating/cooling demand signal is sent to one digital
input on the indoor unit (X2M/1 and X2M/4).
▪ The space operation mode is sent to the heat pump convectors by
one digital output on the indoor unit (X2M/33 and X2M/34).
INFORMATION
When using multiple heat pump convectors, make sure
each one receives the infrared signal from the remote
controller of the heat pump convectors.
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.2.2.4]
▪ Code: [C-05]
Benefits
▪ Cooling. The heat pump convector offers, besides heating
capacity, also excellent cooling capacity.
▪ Efficiency. Optimal energy efficiency because of the interlink
function.
▪ Stylish.
Installer reference guide
10
a
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
heat pump convector can only
send a thermo ON/OFF
condition. No separation between
heating or cooling demand.
Combination: Under floor heating + Heat pump
convectors
▪ Space heating is provided by:
▪ The under floor heating
▪ The heat pump convectors
▪ Space cooling is provided by the heat pump convectors only. The
under floor heating is shut off by the shut-off valve.
Setup
A
B
M1
A Main leaving water temperature zone
B One single room
a Remote controller of the heat pump convectors
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ 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 heat pump convectors.
▪ The space heating/cooling demand signal is sent to one digital
input on the indoor unit (X2M/1 and X2M/4)
▪ The space operation mode is sent by one digital output (X2M/33
and X2M/34) on the indoor unit to:
▪ The heat pump convectors
▪ 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.2.2.4]
▪ Code: [C-05]
Benefits
▪ Cooling. Heat pump convectors provide, besides heating
capacity, also excellent cooling capacity.
▪ Efficiency. Under floor heating has the best performance with
Altherma LT.
ERLQ004~008CAV3 + EHVH/X04+08S18CA + EHVH/X08S26CA
a
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
heat pump convector can only
send a thermo ON/OFF
condition. No separation between
heating or cooling demand.
Daikin Altherma - Low Temperature Split
4P313775-1C – 2012.11