Daikin VRV IV+, Инструкция для установки и пользователя

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7 | Configuration
Installer and user reference guide
99
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10
7.2.9 To connect the PC configurator to the outdoor unit
X27A
a b c
2
3
4
5
H J
ST
X27A
A1P
a PC
b Cable (EKPCCAB)
c Outdoor unit main PCB
7.3 Energy saving and optimum operation
This heat pump system is equipped with advanced energy saving functionality.
Depending on the priority, emphasises can be put on energy saving or comfort
level. Several parameters can be selected, resulting in the optimal balance
between energy consumption and comfort for the particular application.
Several patterns are available and explained below. Modify the parameters to the
needs of your building and to realize the best balance between energy
consumption and comfort.
No matter which control is selected, variations on the behaviour of the system are
still possible due to protection controls to keep the unit operating under reliable
conditions. The intentional target, however, is fixed and will be used to obtain the
best balance between energy consumption and comfort, depending on the
application type.
Care should be taken about selection procedures and system setups, especially
when using Hydrobox units. The requested leaving water temperature from the
Hydrobox has priority over this energy saving control, as it is related to the
required water temperature.
7.3.1 Available main operation methods
Basic
The refrigerant temperature is fixed independent from the situation. It
corresponds to the standard operation which is known and can be expected from/
under previous VRV systems.
To activate this in… Change…
Cooling operation [2‑8]=2
Heating operation [2‑9]=6
Automatic
The refrigerant temperature is set depending on the outdoor ambient conditions.
As such adjusting the refrigerant temperature to match the required load (which is
also related to the outdoor ambient conditions).