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 45
Zone Terminal (Optional)
The Zone Terminal (ZT) is a hand-held or unit mounted device that monitors and adjusts your
McQuay Global Scroll Chiller information.
A standard telephone-style jack directly connects the ZT to the McQuay Global UNT controller.
Features
• Portability
•
Simultaneous monitoring of three different settings or values
•
Easy operation with only seven buttons
•
Flashing numbers to show which items are ZT adjustable
•
Flashing symbols to notify you of alarm conditions
Capabilities
With the ZT, you can:
•
Quickly identify a chiller alarm and its location
•
Monitor and adjust up to 18 different settings
Figure 24, Zone Terminal
MONITOR
ADJUST
TIME SCHEDULE
PASSWORD
ENTER
Compressor 1
Compressor 2
Stage 3
Stage 4
Solenoid #1
Frzstat#1Alm
Frzstat#2Alm
MinLowPres#1
MinLowPres#2
Occupied
Flow Failure
OA Lockout
Cir#2Lead=On
Pmp/Stp #1=0
Lvg Water Temp
Evap Pres #1
Evap Pres #2
OA/AI3 Input
LvgWtr RBnd SP
Contrl Band SP
Actual Lvg SP
Unoccpd Lvg SP
OA Lockout SP
Lvg Low Lim SP
SoftSta Capcty
Cir #1 Starts
Cir #2 Starts
McQuay AGZ/AGR Global Chiller
INSERT 10
ON OFF
Display
Button 1
Mode
Selector
Panel
Mode
Selector
Button
2
AGZ-AGR
Display Indicator Dot
On/Off Status
3
Operating Mode Indicator
Up/Down Arrow Keys
Door
Display Item List
Warning Signal
ALARM
OA/AI3 HiLimSP
OA/AI3 ResetSP
Display Area 11
Display Area 21
Display Area 31
Alarm Light
Lvg Water SP
% Unit Load
SoftStart Time
Pmp/Stp #2=0
Solenoid #2
Stage 5 Opt.
Stage 6 Opt.