Multiple Rooms - One Lwt Zone - Daikin ERHQ-BW1 Installer's Reference Manual

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.
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.
EHVH/X16
Daikin Altherma - Low Temperature Split
4P313777-1 – 2012.05
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.
5 Application guidelines
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.
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 heat pump convectors
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.
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.
Installer reference guide
8