Emerson Copeland EazyCool ZX Series Application Manuallines page 57

Code Description
E20 Lost phase error
L20 Lost phase lockout
L21 Phase sequence lockout
E22 Phase imbalance
E23 Overcurrent
L23 Overcurrent lockout
E24 Open run circuit error
L24 Open run circuit lockout
E25 Open start circuit error
L25 Open start circuit lockout
52
Cause Action
Power supply phase
The compressor will trip
loss (3-phase unit)
Power supply phase
loss happened H12
The compressor will lock out
times within one hour
(3-phase unit)
Incorrect phase
The compressor will lock out, rotation
sequence (3-phase
field has to be changed
unit)
One phase voltage
lower than H18
The compressor is activated according
percentage of 3 phases
to H19
average voltage
(3-phase unit)
Electrical current larger
The compressor will trip
than H09 setting
Overcurrent happened
The compressor will lock out (if H11
H11 times within one
equal to 0, no compressor lockout)
hour
Motor running winding
The compressor will trip
open (1-phase unit)
Motor running winding
open error happened The compressor will lock out (if H12
H12 times within one equal to 0, no compressor lockout)
hour (1-phase unit)
Motor start winding
The compressor will trip
open (1-phase unit)
Motor start winding
open error happened The compressor will lock out (if H12
H12 times within one equal to 0, no compressor lockout)
hour (1-phase unit)
Reset
Automatically: lost phase recovered and H08
delay time out. If all three phases are present
but the controller still shows the error message,
set parameters H06 and H25 to "No".
Hold "start" button for 5 sec or manual power
off and on. If all three phases are present but
the controller still shows the error message, set
parameters H06 and H25 to "No".
Manual power off, invert 2 phases and power
on. If the phase sequence is correct but the
controller still shows the error message, set
parameter H25 to "No".
Automatically: voltage recovered and H16 delay
time-out. If all three phases are present but the
controller still shows the error message, set
parameter H06 to "No".
Automatically: H08 delay time-out. If the current
is within the limits but the controller still shows
the error message, set parameter H06 to "No".
Hold "start" button for 5 sec or manual power
off and on (if H11 equal to 0, compressor
automatically starts after H08 delay time-out). If
the current is within the limits but the controller
still shows the error message, set parameter
H06 to "No".
Automatically: H08 delay time-out.
Hold "start" button for 5 sec or manual power
off and on (if H12 equal to 0, compressor
automatically starts after H08 delay time-out).
Automatically: H08 delay time-out.
Hold "start" button for 5 sec or manual power
off and on (if H12 equal to 0, compressor
automatically starts after H08 delay time-out).
AGL_Unit_ZX_A2L_E_Rev00