91
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
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.
Fig. 44 — EnergyX Control Board (EXCB)
Table 35 — EXCB Input/Output Connections
POINT DESCRIPTION SENSOR LOCATION Input/Output TYPE OF Input/Output CONNECTION PIN NUMBER
Download N/A Both Communication J1
LCD Low voltage control box Both Communication J2
Power from TRANS Control box Input 24VAC J3, 1-2
Power to Relays Low voltage control box Output 24VAC J4, 1
Power to UPC Low voltage control box Output 24VDC J4, 3-4
Wheel Rotation Sensor Attached to scoop Input Switch J5, 2-4
Frost Switch Attached to scoop Input Switch J6, 3-4
Filter Status Switch
Attached to scoop and in Exhaust
air section
Input Switch J7, 3-4
Motor Status Switches Integrated in motors Input Switch J8, 3-4
Leaving Air Temp Scoop section Input 10K J15, 1-2
Exhaust Air Temp Exhaust air section Input 10K J16, 1-2
Wheel Relay High voltage control box Output Relay J17, 4
2-position Exhaust damper
relay
Exhaust damper assembly Output Relay J19, 4
OA fan speed signal N/A Output 2-10vdc J21, 1-3
OA Modulating Damper Intake damper assembly Output 2-10vdc J21, 1-4
EX fan speed signal N/A Output 2-10dvc J22, 1-3
Modbus to UPC Control box Both Communication J23, 1-3
Outside Air pressure
Transducer
Low voltage control box Input Digital 0-5vdc J24
Exhaust Air pressure
Transducer
Low voltage control box Input Digital 0-5vdc J25
Building Pressure Sensor Low voltage control box Input 4-20mA J10, 1-6
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