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7-4. Functions 3
7-4-1. External Temperature Interlock
Based on the temperature difference between the set temperature and the outdoor temperature, the set temperature
can be adjusted automatically. Making this control setting on the air conditioning unit at an entrance of a building
prevents extreme temperature change from distressing our bodies and sending us into shock. Click [Functions 3] in
the menu bar, and then click [External Temperature Interlock] to access the External Temperature Interlock settings
screen.
Note: External Temperature Interlock is available only for air conditioning unit groups.
Note: Either an AI controller (PAC-YG63MCA) or AHC, and an outdoor temperature sensor are required to measure the outdoor
temperature.
Note: When connecting one or more AE-50/EW-50 controllers, connect an AI controller (PAC-YG63MCA) and outdoor temperature
sensor on each AE-50/EW-50.
Note: The External Temperature Interlock settings between the units connected to the AE-200, AE-50, and EW-50, as well as
between the units connected to different AE-50/EW-50 controllers, cannot be made.
Note: The External Temperature Interlock settings may not be accessible if logged in as a building manager.
(1) In the [Temperature Sensor] section, select a temperature sensor to measure the outdoor temperature with.
In the pulldown menu, the name of the temperature sensor that is connected to the AI controller or the AHC
will appear.
Note: Connect the temperature sensor to either the Analog Input 1 or Analog Input 2 port on the AHC.
(2) In the [Set Temperature Variation Range] section, select a maximum temperature value for each group to be
added to or subtracted from the set temperature.
For example, when [±4°C] (±8°F) is selected and the set temperature for the Cool or the Dry mode is set to
24°C (75°F), the set temperature will be adjusted to a maximum of 28°C (83°F) based on the temperature
difference between the set temperature and the outdoor temperature. When [±2°C] (±4°F) is selected, the
set temperature will be adjusted to maximum of 26°C (79°F).
Note: When the unit of temperature is Fahrenheit, the selected temperature value may not be added to the set temperature
accurately because 2ºC is used for the calculation first, and then the temperature in Celsius is converted into the
temperature in Fahrenheit.
(3) Click [Save Settings] to save the settings.
Temperature Sensor
Select a temperature sensor
to measure the outdoor
temperature with.
Group No. and
group name
Refresh
Click to import the settings
from AE-200/AE-50/EW-50.
Set Temperature Variation
Range
Select a maximum
temperature value to be
added to or subtracted from
the set temperature.
Save Settings
Click to save the changes
made.
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