Emerson Copeland Scroll Installation And Reference Manual

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

Emerson Copeland Scroll Specifications

General

Brand	Emerson
Model	Copeland Scroll
Category	Air Conditioner
Language	English