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much heating under high outdoor ambient temperatures (e.g., 59°F
(15°C)) as under low outdoor ambient temperatures (e.g., 23°F
(–5°C)).
Using this idea, the system automatically starts decreasing its re-
frigerant temperature, automatically reducing the delivered capacity
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To activate this operation method under heating operation:
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i sensible economic (cooling heating)
The refrigerant temperature is set higher/lower (cooling/heating)
compared to basic operation. The focus under high sensible mode
is comfort feeling for the customer.
The selection method of indoor units is important and has to be
considered as the available capacity is not the same as under basic
operation. For details concerning to Hi-sensible applications, please
contact your dealer.
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requirements of the pre-designed system containing a high
sensible solution.
Value
[2-8] and [2-47]
3
4
5
6
7
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ments of the pre-designed system containing a high sensible
solution.
Value
[2-9]
1
2
3
15.3.2.
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 chang-
ing 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 tem-
perature, 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 37°F (3°C) on temporary base depending on the
situation.
In case of heating operation the condense temperature is allowed
to go up to 120°F (49°C) on temporary base depending on the situ-
ation.
When the request from the indoor units becomes more moderate,
the system will eventually go to the steady state condition which is
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To activate the powerful comfort setting under cooling opera-
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37
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target
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45°F (7°C)
46°F (8°C)
48°F (9°C)
50°F (10°C)
52°F (11°C)
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target
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106°F (41°C)
108°F (42°C)
109°F (43°C)
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To activate the powerful comfort setting under heating opera-
io
c
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Quick
Overshoot (during heating operation) or undershoot (during cooling
operation) is allowed compared to the requested refrigerant tem-
perature, 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 43°F (6°C) on temporary base depending on the
situation.
In case of heating operation the condense temperature is allowed
to go up to 115°F (46°C) on temporary base depending on the situ-
ation.
When the request from the indoor units becomes more moderate,
the system will eventually go to the steady state condition which is
fi
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To activate the quick comfort setting under cooling operation,
c
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To activate the quick comfort setting under heating operation,
c
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Mild
Overshoot (during heating operation) or undershoot (during cooling
operation) is allowed compared to the requested refrigerant tem-
perature, in order to achieve the required room temperature very
fast. The overshoot is not allowed from the start up moment. The
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tion mode above.
In case of cooling operation the evaporating temperature is allowed
to go down to 43°F (6°C) on temporary base depending on the
situation.
In case of heating operation the condense temperature is allowed
to go up to 115°F (46°C) on temporary base depending on the situ-
ation.
When the request from the indoor units becomes more moderate,
the system will eventually go to the steady state condition which is
fi
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r io
o
The start up condition is different from the powerful and quick
comfort setting.
To activate the mild comfort setting under cooling operation,
c
fi
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To activate the mild comfort setting under heating operation,
c
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Eco
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operation method (see above) is kept without any correction, unless
for protection control.
To activate the mild comfort setting under cooling operation,
c
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To activate the mild comfort setting under heating operation,
c
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