CSZ EZT-570i, Техническое руководство

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EZT-570i Technical Manual
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This output is also used to control cooling of system 2 when in
defrost on large horsepower systems. This output will cycle on
and off with the defrost pressure switch input (I40) in order to
maintain system 2’s head pressure in the proper range. This
allows system 1 compressor to run continuously so as not to
cycle the compressor on and off.
RC Blower (Q44): This output is active on RC units and is used to turn the RC
blower on and off when the chamber is on and event 8 is turned
on and off. If defrost is enabled, this output will turn off the
blower during defrost and will turn it back on once defrost is
complete.
Stack Light Red (Q45): This output can be used to control an optional tower light. The
output is on when the chamber is not running.
Stack Light Yellow (Q46): This output can be used to control an optional tower light. The
output is on when a critical chamber alarm is active.
Stack Light Green (Q47): This output can be used to control an optional tower light. The
output is on when the chamber is running.