7 Configuration
Installer and user reference guide
33
RXYSCQ4~6TMV1B
VRV IV-S system air conditioner
4P404224-1C – 2019.07
Quick
Overshoot (during heating operation) or undershoot (during cooling
operation) is allowed compared to the requested refrigerant
temperature, in order to achieve the required room temperature very
fast. The overshoot is allowed from the start up moment.
▪ In case of cooling operation the evaporating temperature is
allowed to go down to 6°C on temporary base depending on the
situation.
▪ In case of heating operation the condense temperature is allowed
to go up to 46°C on temporary base depending on the situation.
▪ When the request from the indoor units becomes more moderate,
the system will eventually go to the steady state condition which is
defined by the operation method above.
To activate this in…
Change…
Cooling operation
[2‑41]=2.
This setting is used in
conjunction with setting [2‑8].
Heating operation
[2‑42]=2.
This setting is used in
conjunction with setting [2‑9].
Mild
Overshoot (during heating operation) or undershoot (during cooling
operation) is allowed compared to the requested refrigerant
temperature, in order to achieve the required room temperature very
fast. The overshoot is not allowed from the start up moment. The
start up occurs under the condition which is defined by the operation
mode above.
▪ In case of cooling operation the evaporating temperature is
allowed to go down to 6°C on temporary base depending on the
situation.
▪ In case of heating operation the condense temperature is allowed
to go up to 46°C on temporary base depending on the situation.
▪ When the request from the indoor units becomes more moderate,
the system will eventually go to the steady state condition which is
defined by the operation method above.
▪ The start up condition is different from the powerful and quick
comfort setting.
To activate this in…
Change…
Cooling operation
[2‑41]=1.
This setting is used in
conjunction with setting [2‑8].
Heating operation
[2‑42]=1.
This setting is used in
conjunction with setting [2‑9].
Eco
The original refrigerant temperature target, which is defined by the
operation method (see above) is kept without any correction, unless
for protection control.
To activate this in…
Change…
Cooling operation
[2‑41]=0.
This setting is used in
conjunction with setting [2‑8].
Heating operation
[2‑42]=0.
This setting is used in
conjunction with setting [2‑9].
7.3.3
Example: Automatic mode during cooling
A
B
E
100%
50%
T
e
C
D
3°C
6°C
35°C
F
A
Actual load curve
B
Virtual load curve (initial capacity automatic mode)
C
Virtual target value (initial evaporation temperature value
automatic mode)
D
Required evaporation temperature value
E
Load factor
F
Outside air temperature
T
e
Evaporating temperature
Quick
Powerful
Mild
Room temperature evolution:
A
B
C
D
E
F
A
Indoor unit set temperature
B
Operation start
C
Operating time
D
Mild
E
Quick
F
Powerful