Mitsubishi Electric Climaveneta i-BX-004-013M Installation, Operation And Service Manual page 51

CONTROL AND OPERATING CHARACTERISTICS
B) Room temperature influence in HEATING*
Function only active if the N-THC room control units (acces-
sory) are installed.
The compensation curve determines the heating water tem-
perature; this may then be corrected based on the difference
between the desired room set point and the actual room tem-
perature.
The correction made to the water temperature depends on
the "Room Authority" coefficient.
The higher the value of the Room Authority the higher the
correction to the system water temperature, and vice-versa.
This allows the water temperature to adapt quickly to
changes in the conditions inside the room.
The function can only be ENABLED if the A5 room controller
is positioned in the room and used to measure the reference
temperature.
Set authority values for the SYSTEM equal to or greater than
those for zones LT1.
Enabling room temperature influence on SYSTEM deviates
the calculated heat pump water temperature set point.
Enabling room temperature influence on ZONE LT1, deviates
the calculated water temperature set point to the system,
controlled by the mixing valve.
C) System water temperature limits in HEATING*
These define the temperature limits (minimum and maxi-
mum) that can be requested from the circuit and never
exceeded.
In the figure the minimum limit is 30°C and the maximum is
40°.
Between 30 and 40°C the water temperature will be able to
vary based on the trend in outside temperature.
For systems configured with mixed zones, the limits for the
SYSTEM curve and ZONE curve must be selected.
Example referred to compensation curve 1.0
60
50
40
30
20
10
0
-10
-20
-30
-40
-2.5
2 -1,5 -1
DT (Room temperature °C - Room set point °C)
Description
Enable room temperature influ-
ence on SYSTEM
NOT
YES
SYSTEM Room Authority
Enable Room temperature influ-
ence on LT1
NOT
YES
LT1 Room Authority
* the N-THC zone room control unit must be installed.
Set point with room temp. 20°C
100
90
80
70
60
50
40
30
20
10
20 15 10 5
Outside temp. (mean) (°C)
Description
MINIMUM set point limit for
SYSTEM curve
MAXIMUM set point limit for
SYSTEM curve
MINIMUM set point limit for com-
pensation curve in zone LT1
MAXIMUM set point limit for com-
pensation curve in zone LT1
* the N-THC zone room control unit must be installed.
EN i-BX-(Y)_i-BX-N-(Y)
-0,5 0 0,5 1 1,5 2
Menu Parameter Default
no.
Mn01 0163 NOT
Mn01 0164 30
Mn01 0178 NOT
Mn01 0179 30
0 -5 -10 -15 -20 -25
Menu Parameter Default
no.
Mn01 0165 30
Mn01 0166 48
Mn01 0180 23
Mn01 0181 45
A
10 %
25 %
50 %
75 %
99 %
UOM
%
%
-30
UOM
°C
°C
°C
°C
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