Daikin Trailblazer AGZ030-101E Installation, Operation And Maintenance Manual page 94

A code 1 Alert will open the M2-M1 contacts. The Alert will
reset after 30 minutes. Five consecutive Code 1 Alerts will
lockout the compressor. Once the module has locked out the
compressor, a power cycle or Modbus reset command will be
required for the lockout to be cleared.
Code 2 – Open/Shorted Motor Thermistor: The module will
flash the red Alert LED two times indicating the motor PTC
thermistor circuit has an open/shorted thermistor chain (see
Table 2). A Code 2 Alert will open the M2-M1 contacts. The
Alert will reset after 30 minutes and the M2-M1 contacts will
close if the resistance of the motor PTC circuit is back in the
normal range. The module will lockout the compressor and a
power cycle or Modbus reset command will be required to clear
the lockout.
Code 3 – Short Cycling: The module will flash the red Alert
LED three times indicating the compressor is locked out due to
short cycling. Once locked out the compressor, a power cycle
or Modbus reset command will be required to clear the lockout.
Code 4 – Scroll High Temperature: The module will flash
the red Alert LED four times indicating the over-temperature
condition. A Code 4 Alert will open the M2-M1 contacts. The
Alert will reset after 30 minutes. Once the module has locked
out the compressor, a power cycle or Modbus reset command
will be required to clear the lockout.
Code 5 – Reserved for Future Use
Code 6 – Missing Phase: The module will flash the red Alert
LED six times indicating a missing phase. The Alert will reset
after 5 minutes and the module will lockout the compressor
after 10 consecutive Code 6 Alerts. Once locked out, a power
cycle or Modbus reset is required.
Code 7 – Reverse Phase: The module will flash the red Alert
LED seven times indicating a reverse phase in two of the three
compressor leads. The modules will lockout the compressor
after one Code 7 Alert. A power cycle or Modbus reset
command will be required to clear the lockout.
Code 8 – Reserved For Future Use
Code 9 – Module Low Voltage: The module will flash the red
Alert LED nine times indicating low module voltage for more
than 5 seconds. The Alert will reset after 5 minutes and the M2-
M1 contacts will close if the T2-T1 voltage is above the reset
value.
NOTE: If a compressor with CoreSense Communications
fails in the field, the CoreSense module should
remain with the failed compressor so the
manufacturer's technicians can download the
CoreSense data to assist with determining the root
cause of compressor failure.
IOM 1206-13 • TRAILBLAZER MODEL AGZ CHILLERS
®
94
Alarms
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