Daikin EKRRVATR2BA handleiding
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9 | Appendix
Application Guide
34
EKRACP* + EKRCTR* + EKRMIB* + EKRRVA* + EKRSEN* + EKRSIB* +
EKRUFH*
Daikin Home Controls
4P701747-1A – 2023.10
▪ The minimum capacity of the unit is typically higher than the heat load of 1
room. The consequence is less efficient unit operation (ON/OFF operation
because of minimum load condition).
▪ Due to the colder neighbouring rooms, a higher leaving water temperature
setpoint is needed to reach the desired room temperature. This has a negative
impact on the efficiency of the unit.
9.1.4 Technical specifications
Typical value of flow rate in 1 underfloor heating (UFH) loop: 1~2l/min
▪ Typical value of Delta T in 1 UFH loop: 3~8°C
▪ Typical load of 1 UFH loop: 4.18kJ/kgK×2l/min×1/60min/s×5°C=0.7kW
Sanity check based UFH load:
▪ Typical UFH output: 30~100W/m²
▪ Typical surface covered by 1 UFH loop: 10~20m²
▪ Typical load of 1 UFH loop: 65W/m²×15m²≈1kW
Typical minimum capacity of heat pump ≈ ± 3kW
(1)
▪ Continuous operation requires 3~4 open UFH loops
▪ 3 UFH loops open: spurious ON/OFF operation expected
▪ 2 UFH loops open: not very frequent ON/OFF operation expected
▪ 1 UFH loop open: frequent ON/OFF operation expected
Note: When the minimum volume and the minimum flow rate can be reached
with all valves closed, there is no need to add a bypass valve to the system.
To guarantee that the minimum load corresponds with the minimum capacity of
the unit, there are 2 options:
1 Keep a number of UFH loops uncontrolled (without valve actuators connected
to the DHC Floor Heating Controller). The uncontrolled loops are only heated
from the moment there is a heat demand from any of the controlled rooms. It
is recommended to take the room that is large enough and is used most
frequently.
2 The DHC Floor Heating Controller will always keep 2 heating zones active. Some
heating zones offer 2 electrical outputs. If the heating zones with dual output
are prioritised during allocation, the minimum capacity will be matched faster
during a heat demand. In this case, 2 active heating zones will correspond with
3~4 UFH loops.
9.2 About non-connected solutions
Another way to use the DHC accessories is without internet connection. This type
of configuration ONLY supports specific special applications, that make use of a
direct wireless connection between the accessories and are NOT using a DHC
Access Point. Without a DHC Access Point, these applications do NOT offer the
convenience of the ONECTA app for configuration or monitoring.
It is possible to move to a connected ONECTA based system at a later time, but this
will require the purchase of a DHC Access Point and a complete recommissioning.
(1)
This minimum capacity will be different for higher capacity units. A useful rule of thumb is that the minimum capacity is
roughly 30-40% of the published capacity table.
Bekijk gratis de handleiding van Daikin EKRRVATR2BA, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EKRRVATR2BA |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 7259 MB |
