CONTROLLER BOARD
The Beagle Bone
(not shown) is a computer and it has been programmed with the software that controls
the MUA.
JP1
= Motor 1 Control Signal Shunt (0-24VDC PWM) selects the control signal for the fan
(pin 1-2)
JP2
= Motor 2 Control Signal Shunt (0-10VDC standard) selects the control signal for the
Hot Water Heat SUPPLY VALVE (pin 2-3 = 0-10VDC, pin 1-2 = 0-24VDC PWM).
P21
= Power Jack 24 VDC from Power supply.
P13, 15, 17, 19
= i2C BUS 2 Usually this is where the Make-Up Air Differential Pressure Sensor is connected.
P12, 16, 18, 20
= i2C BUS 1 Usually this is where the Filter Differential Pressure Sensor is connected.
J1
= OAT Outside Air Temperature Sensor connects here.
J3
= IAT Inside Air or Conditioned Air Temperature Sensor connects here.
J1
= AAT Attic Air Temperature Sensor connects here.
© AirScape MUA-IOM, July 2022, All Rights Reserved.
24
FAN
Beagle Bone
Headers
Power
Jack
Motor 1 - FAN
Control Signal Shunt
24 VDC PWM (pin 1-2)
Motor 2 - VALVE
Control Signal Shunt
0-10 VDC (pin 2-3)
Motor 2 - VALVE
HEADER
INTERLOCK
HEADER P5
MUA
ACTUATOR
HEADER P1
HEAT ASSIST
ACTUATOR
HEADER P2
WHF
ACTUATOR
HEADER P3
i2C Bus
Connectors (4ea)
OAT = J1
IAT = J3
AAT = J4
TEMP SENSORS
MUA
ACTUATOR
JUMPER JP3
D
E
X