8.3 Setting Remote Controller Type
• As described in section Electrical Wiring. The AHU controller can be installed to operate using either a
Mitsubishi remote controller or a 3rd party controller. SWA must be set as shown below if a 3rd party
thermostat is used.
SWA Function Note
1 Mitsubishi Controller (Analog input is disabled) Factory Setting
2 3rd Party Controller (Analog input is enabled as Type1) -
3 3rd Party Controller (Analog input is enabled as Type2) -
• The analog input for the 3rd party controller can be set to either Type 1 (for temperature control) or Type
2 (for capacity control).
• The 0-10 VDC analog input from the 3rd party controller is converted to a temperature set point by the
AHU controller.
– In Type 1 Control (temperature control), the 0-10 VDC analog input corresponds to a temperature scale
that is the same for cooling mode and heating mode.
– In Type 2 Control (capacity control), the 0-10 VDC analog input corresponds to a temperature scale
that is different for cooling mode and heating mode. The temperature scale corresponds to unit
capacity demand.
Type 2 Example: A low capacity for cooling mode corresponds to a high temperature set point. A low
capacity for heating mode corresponds to a low temperature set point.
NOTE
0-10VDC Analog Input control is only available while operating in Discharge Air Control.
8.3.1 Type 1 (for temperature control)
Cooling/Heating
─ Set point temperature = 5.625 X Ain + 40.775 [°F] [Ain = Input Voltage] [Ain = Input Voltage]
─ Figure 8.3.1 below shows the relationship between the input voltage from the 3rd party controller and the
set point temperature for Type 1 Control.
Input Voltage
Setting Temperature
Fig 8.3.1
PAC-AH001-1
Specifications are subject to change without notice. 44
ENGLISH
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