Table of Contents
Advertisement
•
ON by Pumpdown – Compressor has been called off
but keeps running due to Pump-down sequence. (AC
Models Only).
•
Start Delayed – Waiting for EXV positioning (if
applicable) or going through second compressor start-
up delay.
•
OFF by Restriction – Module capacity limited by low
Load Leaving Water Temperature.
•
OFF by Src Appch – Compressor is off by high Source
Approach.
•
OFF by Min DP – Compressor is off as it can not build
up Minimum Differential Pressure to operate Reversing
Valve in a timely fashion.
•
OFF by Low Ambient – Compressor can not start due
to Low Ambient temperature restriction.
•
Refrigeration Evacuation Cycle – Circuit is running
Refrigeration Evacuation Cycle.
Fan Bank (X)
Two controls components can be displayed.
Table 7. The input/output screens
Primary/Seconday I/O Analog Screen
Primary/Seconday I/O Expansion Screen#1
ARTC-SVX009A-EN
LEDs. Green – corresponding fan in the fan bank is
commanded on; Grey – corresponding fan is commanded
off.
Module I/O Screens
Data is collected by sensors as either analog or digital
signals and displayed on the IO Status screens.
When the module screen is displayed, pressing the I/O
button displays the I/O menu.
The I/O menu is comprised of three screens. When in the
I/O menu switching between I/O screens is made by the
means of respective buttons.
Primary/Seconday I/O Digital Screen
Primary I/O Expansion Screen#2
Operating Procedures
37
Advertisement
Table of Contents
