CSZ EZT-570i, Техническое руководство

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EZT-570i Technical Manual
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Sys2 Hi/Lo Pressure Safety (I5): The system 2 hi/lo pressure safety input is used to indicate that
the system 2 compressor has exceeded its high or low pressure
operating range. This input is active low, i.e., the input must be
off in order for the alarm to be indicated. When active (input off),
the EZT shuts down the chamber until the alarm is
acknowledged (silence button pressed on alarm monitor screen)
and the input is on (requires manual reset of high pressure
safety).
Boiler Thermostat (I6): The boiler high temperature thermostat input is used to indicate
that the boiler has overheated. This input is active low, i.e., the
input must be off in order for the alarm to be indicated. When
active (input off), the EZT shuts down the chamber until the
alarm is acknowledged (silence button pressed on alarm monitor
screen) and the input is on (requires manual reset of thermostat).
Boiler Low Water (I7):
The boiler low water input is used to indicate that the boiler is low
on water. This input is active low, i.e., the input must be off in
order for the alarm to be indicated. When active (input off), the
EZT shuts down the chamber until the alarm is acknowledged
(silence button pressed on alarm monitor screen).
The low water safety has a built in delay to prevent the activating
of the alarm until the boiler has been given sufficient time to fill
(30 minute delay upon turning on the humidity event). If the
boiler has not filled up in the allotted time, the alarm will sound.
Once the boiler has reached the proper operating level, the
alarm will sound immediately upon loss of level.
Water Reservoir Low (I30):
The water reservoir low input is used to indicate that the humidity
system water reservoir is low on water (if equipped). This input
is active low, i.e., the input must be off in order for the alarm to
be indicated. When active (input off), the EZT will sound the
alarm to bring operator attention to the chamber. The alarm will
sound until acknowledged (silence button pressed on system
status screen). This is a notification alarm only and does not
shut down the chamber.
If the chamber has the humidity option, but not the low water
reservoir, this input must be wired to VCC. If not, the low water
alarm will always be present. Jumping this input out prevents
the alarm.
Cargocaire Fault (I31):
The dehumidifier system fault input is used to indicate that there
is a problem with the Cargocaire (if equipped). This input is
active high, i.e., the input must be on in order for the alarm to be
indicated. When active (input on), the EZT shuts down the
chamber until the alarm is acknowledged (silence button pressed
on alarm monitor screen) and the input is off (requires manual
reset/service of dehumidifier unit).
Sys1 Pumpdown Switch (I32):
This input is a control input for pumpdown (if equipped). There is
no user indication for this input. When the refrigeration system