Application 4 - Daikin EKHBRD-AY1 Installation Manual

Application 4

Space heating provided through floor heating loops. For floor heating
applications in combination with radiators the water temperature
delivered by the Daikin system is too high. For this reason a
temperature reducing device (field supply) is required to lower the
water temperature (the hot water will be mixed with cold water to
lower the temperature). The control of this field supplied feature is not
done by the heat pump system. The operation and configuration of
the field water circuit is the responsibility of the installer. Daikin only
offers the possibility to have multiple set points on request.
Pattern A
The domestic hot water tank is installed in parallel with the mixing
station(s). This allows operating the unit in space heating and
domestic water heating simultaneously. The balancing of the water
distribution is in this case the responsibility of the installer.
C1
1 10 2 3 10 4
5
1 Outdoor unit
2 Indoor unit
3 Refrigerant heat exchanger
4 Water heat exchanger
5 Compressor
6 Pump
7 Shut-off valve
8 Valve (field supply)
EKHBRD011~016AAV1+Y1
Indoor unit for air to water heat pump system
4PW54465-1C
6 7 8
TRD1 TRD2
65°C 35°C
9
7
9 Domestic hot water tank
(optional)
10 Electronic expansion
valve
C1 Remote controller
TRD1 Temperature reducing
device 1
TRD2 Temperature reducing
device 2
Pattern B
The domestic hot water tank is installed in a separate circuit (with a
3-way valve) of the temperature
configuration does not allow simultaneous domestic hot water and
space heating operation.
C1
1 10 2 3 10 4
M
5 8
1 Outdoor unit
2 Indoor unit
3 Refrigerant heat exchanger
4 Water heat exchanger
5 Compressor
6 Pump
7 Shut-off valve
8 Motorized 3-way valve
(optional)
Refer to the chapter "Multiple set point control" on page 27
information about the configuration of your system.
reducing device(s). This
6 7
TRD1 TRD2
45°C 35°C
9
7
9 Domestic hot water tank
(optional)
10 Electronic expansion
valve
C1 Remote controller
TRD1 Temperature reducing
device 1
TRD2
Temperature reducing
device 2
for more
Installation manual
65°C
4