General Status Display; Unit "Off" Or "Stopped; Unit "On; No Configuration - Trane IntelliPak CGAF Series Programming, Troubleshooting Manual

Air-cooled cold generator, "h" and later design sequence, with 3-dtm scroll compressors
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General Status Display

Anytime the unit is powered up, or the STATUS, AUTO, or STOP keys are pressed, the unit mounted Human Interface will
display one of the following three general status display screens. The operator will then be able to enter keystrokes which
will allow him to navigate through a set of menus and submenus in order to provide/access various monitoring, setup, and
configuration infromation. The Human Interface will not display screens or parts of screens for which the unit is not config-
ured.

Unit "Off" or "Stopped"

If at power up the unit is not running, the following display will appear on the Human Interface LCD screen. When this screen
is being displayed, the only functional keys are the six menu keys (STATUS, SETPOINTS, DIAGNOSTICS, SETUP, CON-
FIGURATION, AND SERVICE MODE), the AUTO key, the CUSTOM key, and the STOP key.
Mode of Operation
(Blank)
Top Level State
(External Stop)
(Emergency Stop)
(Unit Shutdown)
(Unit Stop)

Unit "On"

If the unit has entered an operating state (running), the following display will appear on the Human Interface LCD screen.
When this screen is being displayed, the only functional keys are the six menu keys (STATUS, SETPOINTS, DIAGNOS-
TICS, SETUP, CONFIGURATION, AND SERVICE MODE), the AUTO key, the CUSTOM key, and the STOP key.
Mode of Operation
(Cool 0)
(Hot Gas Bypass)
(Cool 1)
(Cool 2)
(Cool 3)
(Cool 4)
(Flow SW State Fail)*
Top Level State
(Service Mode On)
(Comfort Cooling)
(Process Cooling)
(Ice Building)
(Loop Stabilization)
*Service Test Mode Only - Flow switch failed to open after solution pump turned off.

No Configuration

If at power up the unit has not been programmed with the necessary configuration data for normal unit operation, the follow-
ing display will appear on the Human Interface LCD screen. When this screen is being displayed, the only functional key is
the CONFIGURATION key.
Note: This screen will only appear when the CGM has been field replaced. Refer to the Configuration Menu.
General Information
_______________
_______________
____________________
Ice Building Complete
Ice Rebuild Delay
Unit Standby
No Configuration Present
Press Configuration Key
11
Solution Pump _____
Trouble Indicator
(Diagnostics)
(Blank)
Solution Pump _____
____________________
Trouble Indicator
(Diagnostics)
(Blank)
(On)
(Off)
(On)
(Off)

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