Carrier AquaEdge 19XR - Introduction and Chiller Familiarization; Abbreviations and Explanations; Chiller Familiarization (Fig. 1-5); System Components

4
Table 3 — 19XR6/7 IOB1 Connections
NOTES:
1. See Fig. 2 for IOB1 wiring diagram.
2. For pressure readings, only Vout (output) terminal is indicated.
See Fig. 2 for Vin (+) and ground (–).
3. Defaults are shown. In some cases the IOB can be configured
differently depending on job requirements.
Table 4 — 19XR6/7 IOB2 Connections
NOTES:
1. See Fig. 3 for IOB2 wiring diagram.
2. For pressure readings, only Vout (output) terminal is indicated.
See Fig. 3 for Vin (+) and ground (–).
3. Defaults are shown. In some cases the IOB can be configured
differently depending on job requirements.
DESCRIPTION CHANNEL TERMINAL TYPE OPTIONAL
Entering Chilled Water Temperature AI1 J16-1,5 5 k —
Leaving Chilled Water Temperature AI2 J16-2,6 5 k —
Entering Condenser Water Temperature AI3 J16-3,7 5 k —
Leaving Condenser Water Temperature AI4 J16-4,8 5 k —
Evaporator Refrigerant Liquid Temperature AI5 J15-6,12 5 k —
Discharge Gas Temperature AI6 J15-5,11 5 k —
Condenser Pressure AI7 J15-4 5 VDC —
Evaporator Pressure AI8 J15-3 5 VDC —
Economizer Pressure AI9 J15-2 5 VDC —
FS VFD Load Current AI10 J15-1,7 4 to 20 mA Yes
Chiller Status Output (ON=20mA, OFF=4mA,
TRIPOUT=8mA, Not Off and Compressor not running=12mA)
AO1 J14-1,4 4 to 20 mA Yes
Oil EXV Output AO2 J14-2, 5 4 to 20 mA Yes
Chiller Lockout Input DI1 J13-5 (4TB-2) 24 VAC Yes, NO (dry contact)
Fire Alarm Interlock DI2 J13-6 (4TB-4) 24 VAC Yes, NO (dry contact)
Remote Contact Input
DI3 J13-7 (4TB-6) 24 VAC
Yes, NO (dry contact); closed indicates
start chiller signal
Remote Emergency Stop Input
DI4 J13-8 (4TB-8) 24 VAC
Yes, NO (dry contact); closed indicates
stop chiller signal
Stage 1 IGV Increase DO1 J12-7 24 VAC Yes
Stage 1 IGV Decrease DO2 J12-10 24 VAC Yes
Chiller Alarm Relay DO3 J12-2 24 VAC Yes
Chiller Alert Relay DO4 J12-5 24 VAC Yes
LEGEND
EXV — Electronic Expansion Valve
FS — Fire Security
IGV — Inlet Guide Vane
IOB — Input/Output Board
NO — Normally Open
VFD — Variable Frequency Drive
DESCRIPTION CHANNEL TERMINAL TYPE OPTIONAL
Motor Winding Temperature 1 AI1 J16-1,5 5 k —
Motor Winding Temperature 2 AI2 J16-2,6 5 k —
Motor Winding Temperature 3 AI3 J16-3,7 5 k —
Oil Supply Temperature AI4 J16-4, 8 5 k Yes
Oil Sump Temperature AI5 J15-6,12 5 k —
Oil Supply Pressure AI6 J15-5 5 VDC —
Oil Sump Pressure AI7 J15-4 5 VDC —
Auto Demand Limit Input AI8 J15-3,9 4 to 20 mA Yes
Refrigerant Leak Sensor AI9 J15-2,8 4 to 20 mA Yes
Displacement Switch AI10 J15-7 Ohm —
Guide Vane 1 Output AO1 J14-1,4 4 to 20 mA —
Damper Valve Feedback Fully Open DI1 J13-5 24 VAC —
Damper Valve Feedback Fully Close DI2 J13-6 24 VAC —
High Pressure Switch DI3 J13-7,3 24 VAC —
Ice Build Contact DI4 J13-8,4, (4TB-12) 24 VAC Yes, NO (dry contact)
Oil Heater Relay DO1 J12-7 24 VAC —
Oil Pump Relay DO2 J12-10 24 VAC —
Economizer Damper Valve Open DO3 J12-2 24 VAC —
Economizer Damper Valve Close DO4 J12-5 24 VAC —
LEGEND
IOB — Input/Output Board
NO — Normally Open