46
AGL_Unit_LOCU_EN_Rev00
Code
Description
Cause
Action
Reset
L44
Discharge line temperature lockout
compressor # 1
Discharge line
temperature overheat
happened D26 times
within one hour
The compressor will lock out (if D26
equal to 0, no compressor lockout)
Hold "start" button for 5 sec or manual power off
and on (if D26 equal to 0, compressor starts
automatically when discharge line temperature
lower than D23 setting and D25 delay time-out)
E45
High condenser pressure alarm
Condenser pressure
higher than E58 f or
E59 minutes
The compressor is activated according
to E60
Automatically as soon as condenser pressure
lower than E61
E46
High condenser temperature alarm
Condenser
temperature higher
than E58 f or E59
minutes
The compressor is activated according
to E60
Automatically as soon as condenser
temperature lower than E61
E47
EXV fully open (only when EVI is
applied)
Not used
E48
Refrigerant shortage
Not used
E49
Pumpdown alarm
Not used
E50
High-side floodback alarm
Discharge temperature
too low.
The dif ferential
temperature between
discharge and mid-coil
is lower than H21 f or
accumulated H22
minutes in H23 minutes
Warning signal only
Automatically as soon as differential
temperature between discharge and mid-coil is
larger than H21 f or H24 minutes
E51
Cold-start alarm
Discharge line
temperature is higher
than parameter D31
setting or suction
pressure is lower than
parameter D32 setting
Used f or digital compressor: during
alarm time, the digital compressor
output is 50 %
Automatically as soon as condenser probe
temperature is higher than C13
Summary of Contents for Copeland OLE-49
Page 5: ......
