46
AGZ 035A through 065A
IOMM AGZ-3
OPERATING MODES
Two operating modes are included: Monitor and Adjust.
Monitor Mode
As soon as the ZT is connected, it completes a self-check, and starts up in the Monitor Mode.
Monitor Mode lets you view up to three of chiller settings/sensed values at a time.
To allow you to monitor your system, a clear plastic Insert (factory made and installed) relates the
ZT’s output to your McQuay Global UNT controller.
You can simultaneously monitor the chiller in three ways:
•
Monitor up to three settings/sensed values. A maximum of six items are accessible in each of the
three displays.
•
Read the symbols to the right of the display numbers to learn the on/off status of various inputs,
outputs, or modes (| = On status; m = Off status). This provides continuous monitoring of 18
different status (on/off).
•
Monitor alarm status–a flashing red alarm light and any flashing symbol ( |, m, s) visually notifies
you when your chiller has an alarm condition.
Adjust Mode
In Adjust Mode, the ZT displays information in each of the three numerical displays. Typically, the
displays are set up so that the relationship between the values can be viewed simultaneously. For
example:
Display 1 = Lvg Water Temp
Display 2 = Lvg Water SP
Display 3 = % Unit Load
This operating mode allows you to adjust any flashing setpoints. Setpoints adjusted by the ZT remain
in effect until you change them.
Summary of Contents for AGZ 035A
Page 6: ...6 AGZ 035A through 065A IOMM AGZ 3 Figure 3 Clearance Requirements...
Page 18: ...18 AGZ 035A through 065A IOMM AGZ 3 Electrical Legend Figure 8 Electrical Legend...
Page 19: ...IOMM AGZ 3 AGZ 035A through 065A 19 Figure 9 Typical Field Wiring with Global UNT Controller...
Page 21: ...IOMM AGZ 3 AGZ 035A through 065A 21 Figure 11 Single point Connection with FanTrol...
Page 22: ...22 AGZ 035A through 065A IOMM AGZ 3 Figure 12 Single point Connection with SpeedTrol...
Page 23: ...IOMM AGZ 3 AGZ 035A through 065A 23 Figure 13 Unit Control Schematic UNT...
Page 24: ...24 AGZ 035A through 065A IOMM AGZ 3 Figure 14 Staging Schematic UNT...
Page 25: ...IOMM AGZ 3 AGZ 035A through 065A 25 Figure 15 MicroTech Controller Schematic...
Page 26: ...26 AGZ 035A through 065A IOMM AGZ 3 Figure 16 Unit Control Schematic MicroTech...
Page 27: ...IOMM AGZ 3 AGZ 035A through 065A 27 Figure 17 Staging Schematic MicroTech...
Page 94: ...94 AGZ 035A through 065A IOMM AGZ 3 Notes...
Page 95: ......