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8.0 ACTIVE SYSTEM PROTECTION FEATURES
8.11 Over and Under
Voltage
If the supply voltage or internal DC voltage is not
within an acceptable operating range, the inverter
will shut the compressor off until the voltage
returns to an acceptable level.
8.12 Inverter Over
Temperature
If the internal inverter temperature sensors detect
excessive temperatures within the inverter, the
inverter will reduce the speed of the compressor or
shut the compressor down until the temperatures
drop to an acceptable level. The compressor will
be locked out if there are 3 faults within a single
call for operation.
8.13 Controls and
Communication
Malfunction
If the controls senses a malfunction within the
control system or communications or if system
model data is not available, the controls will act
to shut the system down to prevent the system
from operating at a condition that could harm
components.
AEM Lubricaon Protecon,
Oil Circulang Raon
Protecon, Compressor Stator
Heat
The compressor operaon
outlined in the applicable
secons will be performed once
an hour. The compressor stator
heat will be kept from operang.
8.14 Sensor Failure Default Operation
8.15 Exiting Active Protection Lock-Out Mode
If the controls sense an externally connected
sensor has failed, the system will enter a fail safe
operating mode and will continue to condition the
space until the sensor can be replaced. A fault code
will be displayed on the EcoNet
TM
Control Center
and Variable Speed Outdoor Control identifying
which sensor has failed. See the table below for the
default operation for a sensor failure.
Exiting an Active Protection Lock-Out mode can
be accomplished by disconnecting electrical power
to both the indoor and outdoor units for 1 minute
and then restoring power. Keep in mind there was
a reason for the lock-out, so the fault code on
the Variable Speed Outdoor Control (VSODC) or
EcoNet
TM
Control Center should be read to assist
with diagnosing the root cause of the lock-out and
corrective action should be taken to prevent the
system from repeating the lock-out.
System Protection
