Daikin Pathfinder AWV Installation, Operation And Maintenance Manual page 47

Air-cooled screw chillers
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MicroTech
III Inputs/Outputs
®
Unit Controller - UC Module
Table 14: Analog Inputs
#
Description
AI1
Evap Entering Water Temp
AI2
Evap Leaving Water Temp
AI3
Outside Ambient Temperature
X1
Waterside Economizer EWT
X4
LWT Reset
Table 15: Analog Outputs
#
Description
X5
Fan VFD #1
X6
Fan VFD #2
Table 16: Digital Inputs
#
Description
DI1
GFP Relay 1
DI2
Evaporator Flow Switch
DI3
Mode Switch
DI4
Remote Switch
DI5
Unit Switch
DI6
Emergency Stop
X8
GFP Relay 2
Table 17: Digital Outputs
#
Description
DO1
Evaporator Water Pump 1
DO2
Alarm Relay
DO3
Circuit #1 Fan Output #1
DO4
Circuit #1 Fan Output #2
DO5
Circuit #1 Fan Output #3
DO6
Circuit #1 Fan Output #4
DO7
Circuit #2 Fan Output #1
DO8
Circuit #2 Fan Output #2
DO9
Circuit #2 Fan Output #3
DO10
Circuit #2 Fan Output #4
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Signal Source
NTC Thermister (10K@25°C)
NTC Thermister (10K@25°C)
NTC Thermister (10K@25°C)
NTC Thermister (10K@25°C)
4-20 mA Current
Output Signal
0-10 Vdc
0-10 Vdc
Signal Off
Signal On
Fault
No Fault
No Flow
Flow
Cool mode
Ice mode
Unit disable
Unit enable
Unit disable
Unit enable
Unit off
Unit enable
Fault
No Fault
Output OFF
Output ON
Pump Off
Pump On
Alarm not
Alarm Active
Active
Fan(s) Off
Fan(s) On
Fan(s) Off
Fan(s) On
Fan(s) Off
Fan(s) On
Fan(s) Off
Fan(s) On
Fan(s) Off
Fan(s) On
Fan(s) Off
Fan(s) On
Fan(s) Off
Fan(s) On
Fan(s) Off
Fan(s) On
CC Modules - Circuit #1 and #2
Table 18: Analog Inputs
#
Description
X1
Discharge Temperature
X2
Suction Temperature
X5
Evaporator Pressure
X6
Oil Pressure
X7
Condenser Pressure
Table 19: Digital Inputs
#
Description
X3
Oil Presence Sensor
Table 20: Digital Outputs
#
Description
DO1
Compressor Run
Command
DO2
Liquid Line SV
DO3
Liquid Injection SV
DO4
100% VR SV
DO5
75% VR SV
DO6
50% VR SV
X8
Economizer SV
EEXV Modules - Circuit #1 and #2
Table 21: Digital Inputs
#
Description
DI1
Mechanical Low Pressure Switch
Table 22: Digital Outputs
#
Description
DO1
Economizer SV
Table 23: EEXV Stepper Motor Output
#
Description
M1+
Circuit # Evaporator EXV Stepper Coil 1
M1-
M2+
Circuit # Evaporator EXV Stepper Coil 2
M2-
Evaporator EXV Module
Table 24: EXV Stepper Outputs
Driver
Description
A
Evaporator EXV Circuit #1
B
Evaporator EXV Circuit #2
47
IOM 1242-8 • PATHFINDER
Controller Operation
Signal Source
NTC Thermister (10K@25°C)
NTC Thermister (10K@25°C)
Ratiometric 0.5-4.5 Vdc
Ratiometric 0.5-4.5 Vdc
Ratiometric 0.5-4.5 Vdc
Signal Off
Signal On
Oil Not Present
Oil Present
Output Off
Output On
Compressor Off
Compressor
On
Solenoid Closed
Solenoid Open
Solenoid Closed
Solenoid Open
Solenoid Closed
Solenoid Open
Solenoid Closed
Solenoid Open
Solenoid Closed
Solenoid Open
Solenoid Closed
Solenoid Open
Signal Off
Signal On
Fault
No Fault
Output OFF
Output ON
Solenoid Closed
Solenoid Open
MODEL AWV CHILLERS
®

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