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14
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