IOM 1242-2 • PATHFINDER
®
MODEL AWV CHILLERS
76 www.DaikinApplied.com
a
larms
and
e
venTs
Discharge Temperature Sensor Fault
Alarm:
Discharge Temperature Sensor Fault
Displayed Text: Cn DiscTempSenFault
Trigger:
Trigger if any of the following are true for at
least 1 second:
•
Sensor input value < 340 Ω
•
Sensor input value > 300 kΩ
• Sensor reliability reported by control
system ≠ ‘No Fault’
Action Taken:
Normal shutdown of circuit and lock out
from running
Reset:
This alarm can be cleared manually via
the keypad or BAS command if sensor
input value is 340 Ω to 300 kΩ and sensor
reliability = ‘No Fault’ for at least 5 seconds.
Evaporator EXV Motor Error
Alarm:
Evaporator EXV Motor Error
Displayed Text: Cn EvapExvMotorErr
Trigger:
If EEXV Type is set to E6V and driver
in Evaporator EXV module reports EXV
motor error. Driver A is for circuit #1 and
Driver B is for circuit #2.
Action Taken:
Rapid shutdown of circuit and lock out
from running
Reset:
This alarm can be cleared manually via
the keypad or BAS command if EXV motor
error is no longer being reported.
Power Loss While Running
Alarm:
Power Loss While Running
Displayed Text: Cn PwrLossWhileRun
Trigger:
Circuit running when controller loses power
Action Taken:
None
Reset:
N/A
Failed Pumpdown
Alarm:
Failed Pumpdown
Displayed Text:
Cn Pumpdown Fail
Trigger:
Circuit state = pumpdown for time >
Pumpdown Time set point
Action Taken:
Shut down circuit
Reset:
N/A
Economizer Pressure Sensor Fault
Alarm:
Economizer Pressure Sensor Fault
Displayed Text: Cn EconPressSenFault
Trigger:
The following conditions must be true to
trigger:
•
Economizer Configuration set point
= Yes
• 8 seconds have passed since UC
booted up
• Communication with EVD module
is OK
• Value reported is more than 3083
kPa or less than 3.85 kPa for at least
1 second.
Action Taken:
Economizer forced to closed state and will
remain closed.
Reset:
This alarm will automatically clear if value
reported is from 3.85 to 3083 kPa for 5
seconds.
Economizer Temperature Sensor Fault
Alarm:
Economizer Temperature Sensor Fault
Displayed Text:
Cn EconTempSenFault
Trigger:
The following conditions must be true to
trigger:
•
Economizer Configuration set point
= Yes
• Communication with EVD module
is OK
• Value reported is more than 150°C
or less than -40°C for at least 1
second
Action Taken:
Economizer forced to closed state and will
remain closed.
Reset:
This alarm will automatically clear if value
reported is from -40°C to 150°C for 5
seconds.
Economizer EXV Motor Error
Alarm:
Economizer EXV Motor Error
Displayed Text:
Cn EconExvMotorErr
Trigger:
Driver in Economizer EXV module reports
EXV motor error. Driver A is for circuit #1
and Driver B is for circuit #2.
Action Taken:
Economizer forced to closed state and will
remain closed.
Reset:
Automatically clear when EXV motor error
is not being reported for 5 seconds.
Summary of Contents for AWV008
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