McQuay AGR 070AS, Руководство по эксплуатации

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IOMM AGR-1 AGR 070A through 100A 53
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.
DISPLAYS, SYMBOLS, KEYS, AND BUTTONS
The Zone Terminal simultaneously displays three set points or sensed values. In addition, flashing
symbols indicate when items are in a state of alarm. The keys, buttons, displays, and symbols are
explained below.
Table 16, Displays, Symbols, Keys, Buttons
DISPLAYS, SYMBOLS,
KEYS, BUTTONS
DESCRIPTION
Display Button
1, 2, 3
Select the value you want to monitor or adjust.
Enter Key
Use to commit your changes. Adjustments are
not processed unless you press Enter.
Flashing Numbers
Appear in Display 1, 2, or 3 to indicate
numbers you can adjust. Numbers that do not
flash are monitor only numbers.
Flashing
s, m, ( | )
Shows an item is in alarm.
Mode Selector Button
Press this button to select Operating Modes:
Monitor, Adjust, Password, Time Scheduling.
A green Mode Indicator light moves through
the modes.
On/Off Status Symbols( | )
for On/a circle (m) for Off
Observe On/Off conditions of a point in the
HVAC controller with these symbols. A bar (| )
for On, a circle (m) for Off. These are always
monitor only items. If the symbol flashes, item
is in alarm.
Red Alarm Light
Flashes anytime a problem exists regardless
of which Operating Mode you have entered.
Up (
↑
) or Down (
↓
) Arrow
Keys
Use these keys to adjust a flashing number.
l
Appears in the displays, and corresponds to
the item you are monitoring or adjusting.
INSTALLING THE PLASTIC LABELS
Note: The insert is normally factory-installed. These steps are required only if the insert is
not already installed.
To use the ZT, you'll need the plastic label which is included with your ZT.
Insert
The clear plastic Insert is a custom-made label unique to your chiller. Use this Insert when
monitoring or adjusting specific items of your system: