Appendix c, Model ugw – ClimaCool CoolLogic Control System User Manual
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Appendix C
The CoolLogic Module Controller with I/O Flex 6126 - Quick Reference Sheet
Model UGW
Input Points
Input # Description
Input Type
1.
Compressor Current Sensor
AI - Pressure Transducer (o-5VDC)
2.
Economizer Port Suction Pressure
AI - Pressure Transducer (o-5VDC)
3.
Compressor Suction Refrigerant Pressure
AI - Pressure Transducer (o-5VDC)
4.
Compressor Discharge Refrigerant Pressure
AI - Pressure Transducer (o-5VDC)
5.
Spare
6.
Compressor Suction Temperature
AI - Thermistor/RTD
7.
Liquid Subcooling Temperature
AI - Thermistor/RTD
8.
Economizer Port Suction Temperature
AI - Thermistor/RTD
9.
Chilled Water Outlet Temperature
AI - Thermistor/RTD
10.
Condenser Water Outlet Temperature
AI - Thermistor/RTD
11a.
Evaporator Motorized Valve Status
DI - (10 kohm=EV MV Open) (OPEN=Both MV’s Closed)
11b.
Condenser Motorized Valve Status
DI - (20 kohm=CD MV Open) (6.6 kohm=Both MV’s Open)
12.
VFD Alarm Status (If Used)
DI - Open - Normal Status; Closed - Alarm Status
12a.
Compressor Contactor 1 Status (If Used)
DI - (10 kohm=CC1 On) (Open=Both Off)
12b.
Compressor Contactor 2 Status (If Used)
DI - (20 kohm=CC2 On) (6.6 kohm=Both On)
Output Points
Description
Output Type
1.
Compressor Start/Stop
DO - Form C Contact
2.
Compressor (CR 2) Unload Solonoid Valve (50% Lim)
DO - Form C Contact
3.
Compressor (CR 3) Unload Solonoid Valve (25% Min. Lim) DO - Form C Contact
4.
Evaporator Motorized Valve (Start/Stop) (If Used)
DO - Form C Contact
5.
Module Alarm Light
DO - Form C Contact
6.
Compressor (CR 4) Load Solonoid Valve (100%)
DO - Form C Contact
Description
Output Type
1.
Condenser Motorized Proportional Valve (If Used)
AO - (2-10VDC)
2.
Economizer Electronic TXV Control
AO - (0-10VDC)
3.
Main Electronic TXV
AO - (0-10VDC)
4.
VFD Speed Reference
AO - (0-10VDC)
Legend:
AI
= Analog Input
AO
= Analog Output
DI
= Digital Input
DO
= Digital Output
VFD
= Variable Frequency Drive