Emerson Copeland EazyCool ZX Series - Page 62

C6.1.6/0613-0915/E 57
Code
Description
Cause
Action
Reset
L26
Under voltage lockout
Under voltage
happened for H17
times within one hour
The compressor will be locked (if H17
equal to 0, compressor no lockout)
Hold “start” button for 5s or manual power off
and on (if H17 equal to 0, compressor
automatically start when voltage is back within
acceptable range and H16 delay time out)
E27
Over voltage alarm
Voltage larger than
H14 setting for H15
seconds
The compressor will be tripped
Automatically: voltage is back within acceptable
range and H16 delay time out
L27
Over voltage lockout
Over voltage
happened for H17
times within one hour
The compressor will be locked (if H17
equal to 0, compressor no lockout)
Hold “start” button for 5s or manual power off
and on (if H17 equal to 0, compressor
automatically start when voltage is back within
acceptable range and H16 delay time out)
E28
Compressor Build-in protector trip
Compressor build-in
thermal protector
trips
Warning signal only
Automatically: as soon as electrical current
detected
E30
Main power lost
Controller power supply lost
E40
High pressure switch
High pressure switch
open
The compressor will be tripped
Automatically: High pressure switch closed and
D14 delay time out
L40
High pressure switch lockout
High pressure switch
open error happened
for D15 times within
one hour
The compressor will be locked(if D15
equal to 0, compressor no lockout)
Hold “start” button for 5s or manual power off
and on (if D15 equal to 0, compressor
automatically start when high pressure switch
closed and D14 delay time out)
E41
Low pressure switch
Low pressure switch
open
The compressor will be tripped
Automatically: low pressure switch closed and
D28 delay time out
E43
Low pressure alarm
Not used in Asia
E44
Discharge line temperature alarm
Discharge line
temperature higher
than D22 for D24
seconds
The compressor will be tripped
Automatically: discharge line temperature lower
than D23 setting and D25 delay time out
L44
Discharge line temperature lockout
Discharge line
temperature over-
heat happened for
D26 times within one
hour
The compressor will be locked(if D26
equal to 0, compressor no lockout)
Hold “start” button for 5s or manual power off
and on (if D26 equal to 0, compressor
automatically start when discharge line
temperature lower than D23 setting and D25
delay time out)