Controller Operation - Daikin Navigator WWV Installation, Operation And Maintenance Manual

Operator Responsibilities
It is important that the operator become familiar with the
equipment and the system before attempting operation. During
the initial startup of the chiller, the Daikin Applied service
technician will be available to answer any questions and
instruct the proper operating procedures. It is recommended
that the operator maintain an operating log for each individual
chiller unit. In addition, a separate maintenance log should be
kept of the periodic maintenance and servicing activities.
Operator Schools
Training courses for Navigator
Maintenance and Operation are held throughout the year at the
Daikin Learning Institute in Verona, Virginia. The class includes
instruction on basic refrigeration, MicroTech
enhancing chiller efficiency and reliability, MicroTech
troubleshooting, system components, and other related
subjects. For more information, refer to the back cover of this
document for Training contact information.
MicroTech III Unit Controller
®
Inputs/Outputs
Table 9: Analog Inputs
# Description
AI1 Evap Entering Water Temp
AI2 Condenser Entering Water
Temp
X3 Demand Limit
X4 LWT Reset
X6 Evap Leaving Water Temp
Table 10: Analog Outputs
# Description
X5 Cooling Tower VFD Speed
X7 Cooling Tower Bypass Valve Position 0-10VDC
Table 11: Digital Inputs
# Description
DI1 Unit Ground Fault Relay
DI2 Evaporator Flow Switch
DI4 Remote Switch
DI5 Unit Switch
DI6 External Alarm
X1 Emergency Stop
X2 Mode Switch
X8 Condenser Flow Switch
IOM 1264-1 • NAVIGATOR
®
® Water-cooled Screw
III controllers,
®
III
®
Signal Source
NTC 10KThermister
NTC 10KThermister
4-20 mA Current
4-20 mA Current
NTC 10KThermister
Output Signal
0-10VDC
Signal Off Signal On
Fault No Fault
No Flow Flow
Unit disable Unit enable
Unit disable Unit enable
Unit disable Unit enable
Unit off Unit enable
Cool Mode Ice Mode
No Flow Flow
MODEL WWV CHILLERS
Table 12: Digital Outputs
# Description
DO1 Evaporator Water Pump 1
DO2 Alarm Relay
DO3 Condenser Water Pump 1
DO5 Cooling Tower Fan 1
DO6 Cooling Tower Fan 2
DO9 Evaporator Water Pump 2
DO10 Condenser Water Pump 2
CC1 Module
Table 13: Analog Inputs
# Description
X1 Discharge Temperature Circuit 1
X2 Evaporator Pressure Circuit 1
X3 Oil Pressure Circuit 1
X4 Condenser Pressure Circuit 1
X6 Condenser Leaving Water Temp
Table 14: Digital Outputs
# Description
DO1 Oil Return Solenoid
Valve & Jet Pump
Solenoid Valve Circuit 1
DO3 VVR SV 1 Circuit 1
DO4 VVR SV 2 Circuit 1
DO5 VVR SV 3 Circuit 1
Evaporator EXV1 Module
Table 15: Analog Inputs
# Description
X2 Suction Temperature Circuit 1
X3 Liquid Temperature Circuit 1
RapidRestore Module
®
Table 16: Digital Inputs
# Description
DI1 RapidRestore Unlock
Compressor VFD1 Module
Table 17: Analog Inputs
# Description
50
Circuit 1 Motor Temperature
54
20
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Output OFF Output ON
Pump Off Pump On
Alarm not Alarm Active
Active
Pump Off Pump On
Off On
Off On
Pump Off Pump On
Pump Off Pump On
Signal Source
NTC 10k Thermister
Ratiometric 0.5-4.5 Vdc
Ratiometric 0.5-4.5 Vdc
Ratiometric 0.5-4.5 Vdc
NTC 10k Thermister
Output Off Output On
Solenoid Closed Solenoid Open
Solenoid Closed Solenoid Open
Solenoid Closed Solenoid Open
Solenoid Closed Solenoid Open
Signal Source
NTC 10k Thermister
NTC 10k Thermister
Signal Off Signal On
Lock Out Option Unlock Option
Signal Source
PTC Thermister
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C o
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