Temperature And Humidity Average Management; Introduction; Average Calculation; Enabling The Average For Use - Mitsubishi Electric s-MEXT-G00 006 Technical Manual

TM_s-MEXT_ME28relC_00_12_19_EN
20.6

TEMPERATURE AND HUMIDITY AVERAGE MANAGEMENT

20.6.1

Introduction

When the units are connected to a LAN network, it is possible to leverage their connection to operate them according to the average humidity and temperature value of all
active units (that is, with active ventilation) not in the alarm status.
20.6.2

Average calculation

The Master unit (that is, the unit having LAN address = 1) calculates the average only if the regulation based on the average value has been enabled from the user terminal.
In order to do this, the Master unit receives the room temperature and humidity values detected by the probes or all units in the LAN network, calculates the average and
sends the resulting value to all units.
The average temperature and humidity consider only those units that:
•
Are not in stand-by (in case the reserve unit rotation function is enabled).
•
Are not in alarm (see following chapters).
•
Are not off from user terminal.
The user terminal of each individual unit also displays the value read by its own temperature probe.
20.6.3

Enabling the average for use

Use of the average temperature and humidity value is only enabled if:
•
The function is enabled.
•
Faults in the LAN connection of the unit are not found.
If faults are detected in the LAN network, the unit immediately exits average based adjustment mode and only works based on local values (i.e.: the values read by the unit
probes).
The diagram below represents the operating mode described above.
UNIT 2
T reg: 23,5°C
MA S TER
UNIT 10
The parameters for enabling and configuring the average based adjustment mode are under the "Lan" menu, which can be accessed by entering the "Service" password.
For the default values, see the parameters table.
Technical manual
UNIT 4
UNIT 3
UNIT 5
LAN
Reg. T.Media
UNIT 7
UNIT 9 UNIT 8
Figure 20-7: Chart illustrating adjustment according to the average temperature and humidity
U1 = U2 =
T: 23,2°C T: 24,2°C
U6 = U7 =
UNIT 6
T: 22,9°C T: 23,6°C
115
Unit Temperatures
U3 = U4 =
T: 23,8°C T: 22,5°C
U8 = U9 =
T: 24,6°C T: 23,0°C
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
U5 =
T: 24,0°C
U10 =
T: 22,9°C