Daikin Altherma EAVX-D9WG, Руководство по установке для специалистов

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5 Application guidelines
Installer reference guide
14
EPGA11~ EAVH/9W
Daikin Altherma – Low temperature split
4P556070-1 – 2019.02
Combination: Under floor h Heat pump
convectors – Multiple rooms
Setup
b
B C
A
a
M1
M1
A Main leaving water temperature zone
B Room 1
C Room 2
a External room thermostat
b Remote controller of the heat pump convectors
▪ For each room with heat pump convectors: The heat pump
convectors are directly connected to the indoor unit.
▪ For each room with under floor heating: Two shut-off valves (field
supply) are installed before the under floor heating:
▪ A shut-off valve to prevent hot water supply when the room has
no heating demand
▪ A shut-off valve to prevent condensation on the floor during
cooling operation of the rooms with heat pump convectors.
▪ For each room with heat pump convectors: The desired room
temperature is set via the remote controller of the heat pump
convectors.
▪ For each room with under floor heating: The desired room
temperature is set via the external room thermostat (wired or
wireless).
▪ The user interface connected to the indoor unit decides the space
operation mode. Mind that the operation mode on each external
room thermostat and remote controller of the heat pump
convectors must be set to match the indoor unit.
INFORMATION
To increase comfort and performance, Daikin recommends
to install the valve kit option EKVKHPC on each heat pump
convector.
Configuration
Setting Value
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
0 (Leaving water): Unit operation
is decided based on the leaving
water temperature.
Number of water temperature
zones:
▪ #: [4.4]
▪ Code: [7-02]
0 (Single zone): Main
5.2.3 Multiple rooms – Two LWT zones
In this document:
▪ Main zone = Zone with the lowest design temperature in heating,
and the highest design temperature in cooling
▪ Additional zone = Zone with the highest design temperature in
heating, and the lowest design temperature in cooling.
CAUTION
When there is more than one leaving water zone, you must
ALWAYS install a mixing valve station in the main zone to
decrease (in heating)/increase (in cooling) the leaving
water temperature when the additional zone has demand.
Typical example:
Room (zone) Heat emitters: Design
temperature
Living room (main zone) Under floor heating:
▪ In heating: 35°C
▪ In cooling: 20°C (only
refreshment, no real cooling
allowed)
Bed rooms (additional zone) Heat pump convectors:
▪ In heating: 45°C
▪ In cooling: 12°C
Setup
B
A
a a
C
E
D
b
c
d
A Additional leaving water temperature zone
B Room 1
C Room 2
D Main leaving water temperature zone
E Room 3
a Remote controller of the heat pump convectors
b User interface used as room thermostat
c Mixing valve station
d Pressure regulating valve
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 the main zone:
▪ A mixing valve station is installed before the under floor heating.
▪ The pump of the mixing valve station is controlled by the ON/
OFF signal on the indoor unit (X2M/29 and X2M/21; normal
closed shut-off valve output).
▪ The room temperature is controlled by the user interface, which
is used as room thermostat (optional equipment BRC1H).