102•dap4UserManual
Power Inputs I/O Board Pin ID ID Connector Number Unit TB
Isolated 24 VAC G J1-1 TB3-1
Isolated 24 VAC Common G0 J1-2 TB3-2
Isolated 24 VAC VG J4-1 TB3-1
Isolated 24 VAC Common VG0 J4-2 TB3-2
Control 24 VAC C1, C4, C9, C16 J12-1, J13-1, J16-1
J22-1
TB1-2B
Control 24 VAC Common IDC1, IDC9, IDC13,
IDC15, IDC17
J5-9, J7-5, J8-3,
J19-3, J20-9
TB1-3A
Sensors Device I/O Board Pin ID ID Connector Number Unit TB
Relative Humidity
H out U1 J2-1 N/A
G+ +VDC J2-4 N/A
M GND J2-5 N/A
Return Air Temperature
NTC U4 J3-1 N/A
NTC GND J3-2 N/A
Opt Static Pressure
I/V out U7 J6-2 N/A
Ground GND J6-4 N/A
Opt Air Discharge
NTC U9 J20-3 N/A
NTC GND J20-4 N/A
Opt Chilled Water
Temperature
NTC U10 J20-5 N/A
NTC GND J20-6 N/A
Alarms – Digital Inputs I/O Board Pin ID ID Connector Number Unit TB
Compressor 1 High Pressure Alarm ID1 J5-1 TB1-25
Compressor 1 Low Pressure Alarm 1D2 J5-2 TB2-26
Compressor 2 High Pressure Alarm 1D3 J5-3 TB2-27
Compressor 2 Low Pressure Alarm ID4 J5-4 TB2-28
NoAirowAlarm ID5 J5-5 TB2-18
Opt No Water Flow Alarm ID6 J5-6 TB2-30
Opt Smoke Detector Alarm ID7 J5-7 TB2-29
Dirty Filter Alarm ID8 J5-8 TB1-23
OptHumidierFailureAlarm ID9 J7-1 TB1-24
Opt Energy Saver Signal 1D10 J7-2 TB2-31
Opt High Condensate Water Level Alarm ID11 J7-3 TB1-17
Opt Alarm Input 1 ID13 J8-2 TB1-14
Opt Alarm Input 2 ID14 J8-4 TB1-15
Opt Alarm Input 3 ID15 J19-2 TB1-16
Opt Alarm Input 4 ID16 J19-4 TB1-22
Water Under Floor Alarm ID17 J20-7 TB2-32
Manual Override Active ID18 J20-8 MOS-12