7 Configuration
Installer and user reference guide
38
RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P561157-1 – 2018.09
[2‑8]
T
e
target (°C)
3
7
4
8
5
9
6
10
7
11
[2‑9]
T
c
target (°C)
1
41
3
43
7.3.2
Available comfort settings
For each of above modes a comfort level can be selected. The
comfort level is related to the timing and the effort (energy
consumption) which is put in achieving a certain room temperature
by temporarily changing the refrigerant temperature to different
values in order to achieve requested conditions more quickly.
Powerful
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 3°C on temporary base depending on the
situation.
▪ In case of heating operation the condense temperature is allowed
to go up to 49°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
[2‑81]=3.
This setting is used in
conjunction with setting [2‑8].
Heating operation
[2‑82]=3.
This setting is used in
conjunction with setting [2‑9]
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
[2‑81]=2.
This setting is used in
conjunction with setting [2‑8].
Heating operation
[2‑82]=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
[2‑81]=1.
This setting is used in
conjunction with setting [2‑8].
Heating operation
[2‑82]=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
[2‑81]=0.
This setting is used in
conjunction with setting [2‑8].
Heating operation
[2‑82]=0.
This setting is used in
conjunction with setting [2‑9].
