Daikin AWV024 - Microtech III Inputs;Outputs

IOM 1242-2 • PATHFINDER
®
MODEL AWV CHILLERS 44 www.DaikinApplied.com
ConTroller operaTIon
MicroTech
®
III Inputs/Outputs
Unit Controller - UC Module
Table 14: Analog Inputs - Evaporator
# Description Signal Source
AI1 Evap Entering
Water Temp
NTC Thermister
(10K@25°C)
AI2 Evap Leaving
Water Temp
NTC Thermister
(10K@25°C)
AI3 Outside Ambient
Temperature
NTC Thermister
(10K@25°C)
X4 LWT Reset 4-20 mA Current
Table 15: Analog Outputs - Fan VFD
# Description Output Signal
X5 Fan VFD #1 0-10 Vdc
X6 Fan VFD #2 0-10 Vdc
Table 16: Digital Inputs
# Description Signal Off Signal On
DI1 GFP Relay 1 Fault No Fault
DI2 Evaporator Flow Switch No Flow Flow
DI3 Mode Switch Cool mode Ice mode
DI4 Remote Switch Unit disable Unit enable
DI5 Unit Switch Unit disable Unit enable
DI6 Emergency Stop Unit off Unit enable
X8 GFP Relay 2 Fault No Fault
Table 17: Digital Outputs
# Description Output OFF Output ON
DO1 Evaporator Water Pump 1 Pump Off Pump On
DO2 Alarm Relay Alarm not
Active
Alarm Active
DO3 Circuit #1 Fan Output #1 Fan(s) Off Fan(s) On
DO4 Circuit #1 Fan Output #2 Fan(s) Off Fan(s) On
DO5 Circuit #1 Fan Output #3 Fan(s) Off Fan(s) On
DO6 Circuit #1 Fan Output #4 Fan(s) Off Fan(s) On
DO7 Circuit #2 Fan Output #1 Fan(s) Off Fan(s) On
DO8 Circuit #2 Fan Output #2 Fan(s) Off Fan(s) On
DO9 Circuit #2 Fan Output #3 Fan(s) Off Fan(s) On
DO10 Circuit #2 Fan Output #4 Fan(s) Off Fan(s) On
CC Modules - Circuit #1 and #2
Table 18: Analog Inputs - For Each Circuit
# Description Signal Source
X1 Discharge Temperature NTC Thermister (10K@25°C)
X2 Suction Temperature NTC Thermister (10K@25°C)
X5 Evaporator Pressure Ratiometric 0.5-4.5 Vdc
X6 Oil Pressure Ratiometric 0.5-4.5 Vdc
X7 Condenser Pressure Ratiometric 0.5-4.5 Vdc
Table 19: Digital Outputs - For Each Circuit
# Description Output Off Output On
DO1 Compressor Run
Command
Compressor Off Compressor
On
DO2 Liquid Line SV Solenoid Closed Solenoid Open
DO3 Liquid Injection SV Solenoid Closed Solenoid Open
DO4 100% VR SV Solenoid Closed Solenoid Open
DO5 75% VR SV Solenoid Closed Solenoid Open
DO6 50% VR SV Solenoid Closed Solenoid Open
X8 Economizer SV Solenoid Closed Solenoid Open
EEXV Modules - Circuit #1 and #2
Table 20: Digital Inputs
# Description Signal Off Signal On
DI1 Mechanical Low Pressure Switch Fault No Fault
Table 21: Digital Outputs
# Description Output OFF Output ON
DO1 Economizer SV Solenoid Closed Solenoid Open
Table 22: 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 23: EXV Stepper Outputs
Driver Description
A Evaporator EXV Circuit #1
B Evaporator EXV Circuit #2