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

© 2017 Emerson Climate Technologies, Inc.
30
AE5-1377 R3
Code
Character
1
Code
Character
2
Fault Type
Trip to Set Point
Control Board
Actions
Auto
Resets
Possible Error and Solution
1
C
PHE vapor out
sensor failure
(Only in XJAL
CDU)
(See Table
12)
-Vapor out sensor
reads <3.2°F or
>163°F
-Ambient temp reads
>50°F
-Display sensor error
on diagnostics
-Continue to run unit
on default mode
Run
-Check whether actual temperature is
out of range
-Check whether the sensor is
connected to the control board
-Check whether the sensor is mounted
at the right position
-Check whether the sensor is in trhe
heat isolation material
-Check whether the sensor has failed
2
0
Compressor
Rapid Cycling
See Page 8.
Minimum off time
can be selected via
jumper setting
-Delay compressor
start, if minimum off
time is less than 3 min
-Display about to turn
on diagnostic
Auto Start
-Compressor start signal is active when
unit stops; the only thing needed to do
is wait until the unit starts
Fresh Start
Occurs on:
-initial unit start,
-When power is reset
<95°F ambient
Compressor is
cycled off > than 1
hour < than 95° F
ambient
-Compressor runs 3
sec and stops 20 sec
-After 3 cycles,
compressor runs
continously
-Display fresh start on
diagnostic
Auto Start
No faults detected, unit about to start.
2
1
Reverse
Phase/Loss of
phase
(3 phase only)
Incorrect phase
sequence
-Stop the unit
-Display the incorrect
phase
-Display waiting to
restart on diagnostic
-Check the phase
sequence after 3
minutes
Auto Start
Compressor Phase Reversal senses
for the correctphase sequence on three
phase applications. Reset is automatic
once the correct phase sequence is
sensed.An error message will be
shown on the diagnostic LED.
2
3
Over Current
Set based on
Compressor
-Stop the Unit
-Display over current
trip on diagnostic
-Display waiting to
restart on diagnostic
-Auto start the unit
after 3 minutes
-Lockout unit if 6 trips
in less than 12 hour
5 Auto
Starts in 1
Hour
* Check rotary switch, make sure it is
on the right position according to the
unit model, Reference Table 7
* Check system operating pressures
* Check voltage supply at the
compressor terminals, must be with in
the +/- 10% voltage tolerance of the
comprressor nameplate.