Energyx Control Board (Excb) - Carrier 48HC 04-28 Controls, Start-Up, Operation And Troubleshooting

ENERGYX CONTROL BOARD (EXCB)

See Fig. 44 and Table 35.
The EXCB continuously monitors input/output channel informa-
tion received from its inputs and from the Universal Protocol
Converter (UPC). The EXCB receives inputs from transducers
and discrete inputs. See Options and Accessories section. The
POINT DESCRIPTION
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LCD
Power from TRANS
Power to Relays
Power to UPC
Wheel Rotation Sensor
Frost Switch
Filter Status Switch
Motor Status Switches
Leaving Air Temp
Exhaust Air Temp
Wheel Relay
2-position Exhaust damper
relay
OA fan speed signal
OA Modulating Damper
EX fan speed signal
Modbus to UPC
Outside Air pressure
Transducer
Exhaust Air pressure
Transducer
Building Pressure Sensor
Fig. 44 — EnergyX Control Board (EXCB)
Table 35 — EXCB Input/Output Connections
SENSOR LOCATION
N/A
Low voltage control box
Control box
Low voltage control box
Low voltage control box
Attached to scoop
Attached to scoop
Attached to scoop and in Exhaust
air section
Integrated in motors
Scoop section
Exhaust air section
High voltage control box
Exhaust damper assembly
N/A
Intake damper assembly
N/A
Control box
Low voltage control box
Low voltage control box
Low voltage control box
EXCB has relay analog outputs, and is equipped with a LCD
screen. The EXCB communicates with a Modbus protocol and is
not a CCN device. The EXCB has a reset button that is used to
force all the outputs and reset communication.
NOTE: There are hardware jumpers set throughout the board. Do
not change these jumpers.
Input/Output TYPE OF Input/Output
Both Communication
Both Communication
Input 24VAC
Output 24VAC
Output 24VDC
Input Switch
Input Switch
Input Switch
Input Switch
Input 10K
Input 10K
Output Relay
Output Relay
Output 2-10vdc
Output 2-10vdc
Output 2-10dvc
Both Communication
Input Digital 0-5vdc
Input Digital 0-5vdc
Input 4-20mA
91
CONNECTION PIN NUMBER
J1
J2
J3, 1-2
J4, 1
J4, 3-4
J5, 2-4
J6, 3-4
J7, 3-4
J8, 3-4
J15, 1-2
J16, 1-2
J17, 4
J19, 4
J21, 1-3
J21, 1-4
J22, 1-3
J23, 1-3
J24
J25
J10, 1-6