OM AGSD-1 17
Controller Operation
CP1 Inputs/Outputs
I/O for the unit control and for circuits one and two are found on CP1.
Analog Inputs
# Description Signal Source Normal Range
1 Slide Load Indicator #1 4-20 mA Current 1 to 23 mA
2 Slide Load Indicator #2 4-20 mA Current 1 to 23 mA
3 Evaporator Pressure #1 4-20 mA Current 3 to 22 mA
4 Discharge Temperature #1 PT1000 Sensor -45 to 240°F
5 Discharge Temperature #2 PT1000 Sensor -45 to 240°F
6 Condenser Pressure #1 4-20 mA Current 3 to 22 mA
7 Condenser Pressure #2 4-20 mA Current 3 to 22 mA
8 Evaporator Pressure #2 4-20 mA Current 3 to 22 mA
9 Evaporator Entering Water Temp NTC Thermister -45 to 212°F
10 Evaporator Leaving Water Temp NTC Thermister -45 to 212°F
Analog Outputs
# Description Output Signal Range
1 VFD #1 0-10VDC 0 to 100% (1000 steps resolution)
2 EXV #1 0-10VDC 0 to 6386 steps (1000 steps resolution)
3 VFD #2 0-10VDC 0 to 100% (1000 steps resolution)
4 EXV #2 0-10VDC 0 to 6386 steps (1000 steps resolution)
5 Reserved for Ceechina VFD#1 (future) 0-10VDC 0 to 100% (1000 steps resolution)
6 Reserved for Ceechina VFD#2 (future) 0-10VDC 0 to 100% (1000 steps resolution)
Digital Inputs
# Description Signal Off Signal On
1 Circuit Switch #1 Cir 1 disabled Cir 1 enabled
2 Circuit Switch #2 Cir 2 disabled Cir 2 enabled
3 Evaporator Water Flow Switch No Flow Flow
4 PVM/GFP #1 Fault No Fault
5 Mode Switch Cool mode Ice mode
6 Mechanical High Pressure Switch #1 Fault No Fault
7 Mechanical High Pressure Switch #2 Fault No Fault
8 Open
9 Open
10 VFD Fault #1 Fault No Fault
11 VFD Fault #2 Fault No Fault
12 Starter Fault #1 Fault No Fault
13H Low Pressure Switch #1 Fault No Fault
14H Low Pressure Switch #2 Fault No Fault
15 Starter Fault #2 Fault No Fault
16 Unit Switch Unit disabled Unit enabled
17 Remote Switch Unit disabled Unit enabled
18 PVM/GFP #2 Fault No Fault
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