Johnson Controls FRICK QUANTUM LX Operation page 66

090.022-O (MAY 12)
Page 66
ACCESSING:
DESCRIPTION: This screen is used to view and set basic compressor operational values.
The following information is provided:
Panel Temperature - The main processor board is
equipped with a temperature sensor. The panel has
an operational temperature range that should be
maintained. The operational temperature range is
documented in the specifi cations document.
Panel Heater - A heating pad is mounted in the en-
closure to keep the internal panel temperature el-
evated enough to keep the liquid crystal material of
the display from freezing. A Status message shows
the current state of the Panel Heater:
• Off - Panel Heater is Off.
• On - Panel Heater is On.
Whether the Panel Heater is On or Off is determined
by the setting of the following two setpoints:
• On - If the sensor on the main processor
board detects that the temperature is less
than or equal to this setpoint, the Panel
Heater output is turned on.
• Off - If the sensor on the main processor
board detects that the temperature is great-
er than or equal to this setpoint, the Panel
Heater output is turned off.
[Remote Enable Output] – The output for channel
2, digital board 2 (Remote Enable) will be energized
when the Compressor Mode has been set for Remote
QUANTUM™ LX COMPRESSOR CONTROL PANEL
OPERATION
SETPOINTS - Panel
Setpoints...
Panel
operation, and one of the following parameters have
been selected:
• Disabled – This feature is disabled.
• Compressor Mode: Remote I/O
• Compressor and Capacity Modes: Remote
I/O
• Compressor Mode: Remote I/O and Ca-
pacity Mode: Remote 4-20
The following pull-down boxes are provided:
Permissive Start – The input used for this feature is
Module 17 of digital board 2. This feature has three
possible states:
• Disabled – The feature is disabled
• Starting – This input needs to be energized
only to start the compressor.
• Always – This input must be energized to
start the compressor. If the compressor is
running, and this input is de-energized, the
compressor is stopped.
Power Fail Restart – The setting of this feature de-
termines whether or not the compressor will auto-
matically attempt to restart itself after a power failure
has occurred.
• Disabled – This feature is disabled.
• Enabled – This feature is enabled.