Daikin EHFH03S18DJ3V — руководство по установке и подключению систем отопления [34/204]
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Daikin EHFH03S18DJ3V — руководство по установке и подключению систем отопления [34/204]

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Daikin EHFH03S18DA3V [34/204] Application guidelines
5 | Application guidelines
Installer reference guide
34
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1A – 2020.05
INFORMATION
A pressure regulating valve should be implemented before the mixing valve station.
This is to guarantee the correct water flow balance between the main leaving water
temperature zone and the additional leaving water temperature zone in relation to
the required capacity of both water temperature zones.
▪ For more information about connecting the electrical wiring to the unit, see:
- "8.2Connections to the outdoor unit"[489]
- "8.3Connections to the indoor unit"[490]
▪ For the main zone:
- A mixing valve station is installed before the underfloor heating.
- The pump of the mixing valve station is controlled by the ON/OFF signal on the
indoor unit (X2M/29 and X2M/21; normally closed shut-off valve output).
- The room temperature is controlled by the user interface, which is used as
room thermostat (EKRUDAL1).
▪ For the additional zone:
- 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 for each room.
- The heating or cooling demand signals of each heat pump convector are
connected in parallel to the digital input on the indoor unit (X2M/35 and
X2M/30). The indoor unit will only supply the desired additional leaving water
temperature when there is an actual demand.
▪ The user interface connected to the indoor unit decides the space operation
mode. Mind that the operation mode on each remote controller of the
heatpump convectors must be set to match the indoor unit.
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
Note:
▪ Main room = user interface used as
room thermostat functionality
▪ Other rooms = external room
thermostat functionality
Number of water temperature zones:
▪ #: [A.8]
▪ Code: [7-02]
1 (2 LWT zones): Main + additional
In case of heatpump convectors:
External room thermostat for the
additional zone:
▪ #: [A.8]
▪ Code: [C-06]
1 (Thermo ON/OFF): When the used
external room thermostat or heatpump
convector can only send a hermos ON/
OFF condition. No separation between
heating or cooling demand.
Shut-off valve output Set to follow the hermos demand of the
main zone.

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