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Table 6 — EXV1 Board Inputs and Outputs (30XW150-325)
Table 7 — EXV1,2 Board Inputs and Outputs* (30XW350,400)
*“X” denotes the circuit: 1 = Circuit A; 2 = Circuit B.
DESCRIPTION INPUT/OUTPUT I/O TYPE DISPLAY MODULE POINT NAME
CONNECTION POINT
Pin Notation
Power (24 vac supply) —— —
EXVA-J1
11 24 vac
12 Ground
Local Equipment Network —— —
EXVA-J4
1 RS485 Port (D+)
2 RS485 Port (Gnd)
3 RS485 Port (D–)
Circuit A Suction Gas Thermistor SGTA 5k Thermistor Compressor Suction Temp, SGT.A
EXVA-J3
TH
A
Circuit B Suction Gas Thermistor SGTB 5k Thermistor Compressor Suction Temp, SGT.B
EXVA-J3
TH
B
Circuit A EXV EXV-A Stepper Motor EXV Position, EXV.A
EXVA-J2A
1
2
3
4
Circuit B EXV
(size 325 only)
EXV-B Stepper Motor EXV Position, EXV.B
EXVA-J2B
1
2
3
4
DESCRIPTION INPUT/OUTPUT I/O TYPE
DISPLAY MODULE POINT NAME
CONNECTION POINT
Pin Notation
Power (24 vac supply) —— —
EXVX-J1
11 24 vac
12 Ground
Local Equipment Network ——
—
EXVX-J4
1 RS485 Port (D+)
2 RS485 Port (Gnd)
3 RS485 Port (D–)
Circuit X Suction Gas Thermistor SGT X 5k Thermistor Compressor Suction Temp, SGT.X
EXVX-J3
TH
A
Circuit X Economizer Gas Thermistor ECT X 5k Thermistor Economizer Gas Temp, ECT.X
EXVX-J3
TH
B
Circuit X EXV EXV-X Stepper Motor EXV Position, EXV.X
EXVX-J2A
1
2
3
4
Circuit X Economizer EXV ECEXV-X Stepper Motor Cir X Economizer EXV Pos, ECO.X
EXVX-J2A
1
2
3
4