Installation and operation manual
38
10T7Y1B
VRV-W IV System Air Conditioner
4P347465-1A – 2013.04
To activate this setting under heating operation: change field
setting [2-9] to the appropriate value, matching the
requirements of the pre-designed system containing a high
sensible solution.
To maintain the target settings, it is required to set the comfort
setting to Eco.
The comfort modes are explained below.
17.4.2
Several comfort settings are available
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 the powerful comfort setting under cooling
operation, change field setting [2-51]=3.
This setting is used in conjunction with setting [2-8].
To activate the powerful comfort setting under heating
operation, change field setting [2-52]=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 the quick comfort setting under cooling operation,
change field setting [2-51]=2.
This setting is used in conjunction with setting [2-8].
To activate the quick comfort setting under heating operation,
change field setting [2-52]=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 the mild comfort setting under cooling operation,
change field setting [2-51]=1.
This setting is used in conjunction with setting [2-8].
To activate the mild comfort setting under heating operation,
change field setting [2-52]=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 the mild comfort setting under cooling operation,
change field setting [2-51]=0.
This setting is used in conjunction with setting [2-8].
To activate the mild comfort setting under heating operation,
change field setting [2-52]=0.
This setting is used in conjunction with setting [2-9].
Value
[2-9]
T
c
target (°C)
1
41
3
43
4P347465-1A.book Page 38 Monday, August 5, 2013 2:26 PM