Function 2; External Temperature Interlock - Mitsubishi Electric AG-150A Instruction Book

9. Function 2

9-1 External Temperature Interlock

The purpose of this function is to avoid heat shock (physical shock caused by the extreme temperature difference when entering into a
building) during cooling operation. It adjusts the setting temperature in order to lower the temperature difference between indoor and
outdoor. To use this function, make a setting for AI controller on the "Measurement" under "Function 1".
Note: Connect our AI controller (PAC-YG63MCA) to measure outside temperature.
Note: This function works when the operation mode is [cooling] or [dry].
Note: This function works for air conditioning unit group, but not for LOSSNAY, Air To Water (PWFY), or general equipment.
Note: When temperature are displayed in Fahrenheit, +2, +4, +6, +8°F may not properly be displayed because +1, +2, +3, +4°C Control
is excuted and then Celsius temperature is converted into Fahrenheit temperature inside the controller.
[Preset temperature + 1.4°C / + 2.5°F] or below
[Preset temperature + 1.5°C / + 2.7°F] - [Preset temperature + 4.4°C / + 7.9°F]
[Preset temperature + 4.5°C / + 8.1°F] - [Preset temperature + 6.4°C / + 11.5°F]
[Preset temperature + 6.5°C / + 11.7°F] - [Preset temperature + 7.4°C / + 13.3°F]
[Preset temperature + 7.5°C / + 13.5°F] or above
Outside air temperature
36
35
34
33
32
31
30
29
28
27
26
25
24
23
Time
– 87 –
Setting temperature after interlock
Preset temperature
Preset temperature + 1°C / + 2°F
Preset temperature + 2°C / + 4°F
Preset temperature + 3°C / + 6°F
Preset temperature + 4°C / + 8°F
Outside air temperature
Setting temperature after interlock
Preset temperature