Emerson Copeland Scroll Installation And Reference Manual page 18

Trip to
Fault Type
Set Point
-Actual
DLT>320°F
~DLT Sensor
Fails and
actual DLT>
Discharge
176°F
Line And
-Both coil-
Coil in Temp
in and DLT
Sensors
sensors fail
Failure
(short circuit)
(See Table
10)
-Coil Sensor
fails (open)
and actual
DLT is
<163°F
-Vapor in
PHE vapor in
sensor reads
sensor failure
<3.2°F or
(Only in XJAL
>163°F
CDU)
-Ambient
(See Table
temp reads
10)
>50°F
-Vapor out
PHE vapor
sensor reads
out sensor
<3.2°F or
failure (Only
>163°F
in XJAL CDU)
-Ambient
(See Table
temp reads
10)
>50°F
© 2011 Emerson Climate Technologies
Printed in the U.S.A.
Application Engineering
B U L
Table 9 Continued
Code Code
Char. Char. Control Board Actions
1 2
(Only in XJAL)
-Stop the unit
-Display DLT sensor failure
on the diagnostic
-Display waiting to restart
on diagnostic
*
- Auto start the unit after 3
2 7
minutes
-Lockout unit if 6 trips in
less than 1 hour
1 7
-Display DLT sensor failure
lockout on diagnostic
(only in XJAM)
5 7
-Display DLT sensor failure
on diagnostic
-Continue to run the unit
on default mode
(Both XJAL and XJAM)
-Display DLT sensor failure
on diagnostic
-Continue to run the unit
on default mode
-Display sensor error on
diagnostics
1 A
-Continue to run unit on
default mode
-Display sensor error on
diagnostics
1 C
-Continue to run unit on
default mode
L E T
17
I N
AE5-1377 R2
Auto Possible Error and
Resets Solution
-Check liquid line sight glass
-Check whether the DLT
5 Auto sensor is connected to the
Starts control board;
in 1 -Check whether DLT sensor
hour is OK
-Check whether Coil in
sensor is OK
Run
-Check whether the sensors
are connected to control
board;
Run
-Check whether Coil in
sensor is OK.
-Check for liquid fl oodback
-Check whether actual
temperature is out of range;
-Check whether the sensor
is connected to the control
board
-Check whether the sensor
Run is mounted at the right
position;
-Check whether the sensor
is in trhe heat isolation
material;
-Check whether the sensor
has failed
-Check whether actual
temperature is out of range;
-Check whether the sensor
is connected to the control
board
-Check whether the sensor
Run is mounted at the right
position;
-Check whether the sensor
is in trhe heat isolation
material;
-Check whether the sensor
has failed