7 Configuration
Installer and user reference guide
43
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1 – 2018.09
For more information and advice about the impact of these settings,
see
"7.3 Energy saving and optimum operation" on page 43
.
[2‑82]
Heating comfort setting.
This setting is used in conjunction with setting [2‑9].
[2‑82]
Heating comfort setting
0
Eco
1 (default)
Mild
2
Quick
3
Powerful
For more information and advice about the impact of these settings,
see
"7.3 Energy saving and optimum operation" on page 43
.
[2‑83]
Master user interface allocation in case VRV DX indoor units and
RA DX indoor units are used at the same time.
By changing setting [2‑83], you can allow the VRV DX indoor unit to
be the operation mode selector (system power OFF/ON is required
after applying this setting).
[2‑83]
Description
0
VRV DX indoor unit has mode selection right.
1 (default)
RA DX indoor unit has mode selection right
setting.
[2‑85]
Automatic leak detection interval time.
This setting is used in conjunction with setting [2‑86].
[2‑85]
Time between automatic leak detection
executions (days)
0 (default)
365
1
180
2
90
3
60
4
30
5
7
6
1
[2‑86]
Automatic leak detection activation.
When you want to use the automatic leak detection function you
have to activate this setting. By activating setting [2‑86], the
automatic leak detection will be executed depending on the defined
value setting. The timing for the next automatic refrigerant leak
detection is subject to setting [2‑85]. The automatic leak detection
will be executed in [2‑85] days.
Each time when the automatic leak detection function was executed
the system will stay idle until it is restarted by manual thermo ON
request or by next scheduled action.
[2‑86]
Description
0 (default)
No leak detection planned.
1
Leak detection planned once in [2‑85] days.
2
Leak detection planned every [2‑85] days.
[2‑88]
Gathering detailed refrigerant information during test run. For more
details, see
"8.4 About the test run" on page 47
.
[2‑88]
Description
0 (default)
Actived.
1
Deactived.
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).
E.g., when your system is operating in cooling, you do not need as
much cooling under low outdoor ambient temperatures (e.g., 25°C)
as under high outdoor ambient temperatures (e.g., 35°C). Using this
idea, the system automatically starts increasing its refrigerant
temperature, automatically reducing the delivered capacity and
increasing the system's efficiency.
E.g., when your system is operating in heating, you do not need as
much heating under high outdoor ambient temperatures (e.g., 15°C)
as under low outdoor ambient temperatures (e.g., –5°C). Using this
