Unit installation
Table Of Contents
- Introduction
- Installation
- Physical Data
- Electrical Data
- Dimensional Data
- Startup
- Operation
- Global UNT Controller Installation and Operation
- General Description
- Optional Sensors
- Sensors and Transducers
- Control Wiring
- External Voltage Inputs
- Interlock Wiring
- Unit Set Points and Calibration
- Optional Sensors
- Field Wiring
- Power Wiring
- Power Supplies
- Analog input signals
- Digital input signals
- Remote Stop/Start
- Chilled Water Flow Switch
- Digital Outputs
- External Alarm Annunciator Circuitry
- PC Connection
- Software Identification
- Controller Inputs /Outputs
- Additional Global UNT Features
- Alarms
- Zone Terminal (Optional)
- Zone Terminal Glossary
- UNT Troubleshooting Chart
- MicroTech Controller Installation and Operation
- Sensors and transducers
- Control wiring
- Remote 4-20 milliamp signals
- Interlock wiring
- Unit set points and calibration
- Modem kit
- Lead-Lag
- Field Wiring
- Power Wiring
- Power Supplies
- Analog Input Signals
- Digital Input Signals
- Remote Stop/Start
- Chilled Water Flow Switch
- Digital Outputs
- Chilled Water Pump Relay
- External Alarm Annunciator Circuitry
- PC Connection
- Telephone line
- Software Identification
- Controller Inputs /Outputs
- Reset Options
- Soft Loading
- Manual Operation
- Compressor Staging
- Head Pressure Control
- Pumpdown Control
- Safety Systems
- Circuit Alarm Conditions
- System Alarm Conditions
- Sequence of Operation
- Start-Up and Shutdown
- Keypad / Display
- Menu Descriptions
- Trouble Analysis for the MicroTech
- Test Procedures
- Unit Maintenance
- Service

IOMM AGZ-3 AGZ 035A through 065A 75
Table 36, MENU 15 SoftLoad Spts
Screen Display Factory Setpoint Range
1 Time Left= xxmin
2 SoftLoad= xx min 20 0 - 254
3 SoftLdMaxStg= x 4 1 - 4
4 LoadDelay= xxsec 15 0 - 254
Table 37, MENU 16 CompressorSpt
Screen Display Factory Setpoint Range
1 Sequence=Auto Auto
1234
1432
2143
2341
3214
3412
4123
4321
2 StageUp= xxx sec
3 StageDn= xxx sec
4 MinST-ST=xx min 15 5 - 40
5 MinSP-ST xx min 5 3 - 30
Comp #1 Disable / Enable
Comp #2 Disable / Enable
Comp #3 Disable / Enable
Comp #4 Disable / Enable
Table 38, MENU 17 Head Pres Spt
Values for R-22 refrigerant, ( ) indicates Centigrade values
Screen Display Factory Setpoint Range
1
2 MinLift 50%=xxx 80 (552) 70 - 100 (483 - 690)
3 MinLift100%=xxx 140 (966) 100 - 140 (690 - 966)
4 DeadBandMult= x.x 1.0 .8 - 1.3
5 StageUpErr= xxx 400 (2760) 300 - 990 (2070 - 6830)
6 StageDnErr = xxx 100 (690) 50 - 400 (340 - 2760)
Table 39, MENU 17 Head Pres Spt
Values for 134a refrigerant, ( ) indicates Centigrade values
Screen Display Factory Setpoint Range
2 MinLift 50%=xxx 56 (386) 50 - 80 (345 - 552)
3 MinLift100%=xxx 90 (621) 80 - 122 (552 - 841)
4 DeadBandMult= x.x 1.0 .8 - 1.3
5 StageUpErr= xxx 400 (2760) 300 - 990 (2070 - 6830)
6 StageDnErr = xxx 100 (690) 50 - 400 (340 - 2760)
Table 40, MENU 18 Demand Limits
Screen Display Factory Setpoint Range
1 Demand Lim= xstg 3 Not Changeable at this screen
2 DemandSg= xx.x ma Actual Value
Indicates the Magnitude of the
Demand Limit Signal
Table 41, MENU 19 Time / Date
Screen Display Factory Setpoint Range
1 Time= xx:xx:xx Actual Time
2 Mon xx/xx/xx Actual Day and Date