2017 Emerson Climate Technologies, Inc - Emerson XJAL-020Z-CFV-012 Manual

Code Code
Character Character Fault Type
1 2
Discharge Gas
4 4
Overheat
High Pressure
4 5
Trip
5 3
Over Current
Discharge Gas
Overheat
5 4
(XJAM
Models)
High Pressure
5 5
Trip
© 2017 Emerson Climate Technologies, Inc.
Control Board
Trip to Set Point
Actions
-Stop the Unit
-Display DLT trip on
diagnostic
Discharge
Temperatures over -Auto start the unit
270°F after 3 minutes
-Lockout unit if 6 trips
within 1 hour
-Stop the Unit
-Display HP trip on
diagnostic
-Contact open at 435
-Auto start the unit
psig ±22psig
after 3 minutes
-Contact Close at
-Lockout unit if 6 trips
348 psig ±22psig
within 1 hour
-Display HP lockout on
diagnostic
-Stop the Unit
-Display over current
trip on diagnostic
Set based on
-Lockout unit if 6 trips
Compressor
in less than 12 hour
-Display over current
lockout on diagnostic
-Stop the Unit
-Display DLT trip on
diagnostic
Discharge
Temperatures over -Lockout unit if 6 trips
270°F within 1 hour
-Display DLT overheat
lockout on diagnostic
-Stop the Unit
-Display HP trip on
-Contact open at 435
diagnostic
psig ±22psig
-Lockout unit if 6 trips
-Contact Close at
within 1 hour
348 psig ±22psig
-Display HP lockout on
diagnostic
32
AE5-1377 R3
Auto
Possible Error and Solution
Resets
-Check system operations, for example
condensing pressures, return gas
5 Auto
temperatures, envelope operations etc.
Starts in 1
Verify operations and correct the
hour
situation
-Verify condenser fan operation,
excessive air recirculation, excessive
5 Auto
ambient temperatures, incorrect
Starts in 1
envelope operations
Hour
-Verify system component operations
* Check rotary switch, make sure it is
on the right position according to the
unit model, Reference Table 7
* Check system operating pressures
Lockout
* Check voltage supply at the
compressor terminals, must be with in
the +/- 10% voltage tolerance of the
compressor nameplate.
-Check system operations, for example
condensing pressures, return gas
Lockout temperatures, envelope operations etc.
Verify operations and correct the
situation
-Verify condenser fan operation,
excessive air recirculation, excessive
ambient temperatures, incorrect
Lockout
envelope operation
-Verify system component operations