Lennox XP25-024-230-01 Installation And Service Procedure page 37

Description
Idle Mode: Decimal point flashes at 1 Hz
Soft Disabled: Top and bottom horizontal line and decimal point
flash at 1 Hz.
Factory Test Mode
Anti-Short Cycle Delay
Cooling Cycle: Shows current percentage of maximum cooling
capacity. Example to the right indicates a cooling demand of 50
percent and a outdoor fan speed of 700 RPM.
Heating Pump Cycle: Shows current percentage of maximum
heating capacity. Example to the right indicates a heating de­
mand of 33 percent and an outdoor fan speed of 600 RPM.
Defrost Mode: Shown only while in an active defrost.
Diagnostic recall: Shows the last 10 stored diagnostic error
codes.
Fault memory clears
Active error in outdoor control Idle mode: Show all active
error(s) codes.
Active error in run mode: Show current status and all active
error(s) codes.
Outdoor Ambient Temperature (OAT): Any time OAT is sensed
in operating range, value is displayed if unit is in diagnostic and
non-diagnostic modes.
Outdoor Coil Temperature (OCT): Any time OCT is sensed in
operating range, value is displayed if unit is in diagnostic mode
or manually enabled for non-diagnostic modes.
Liquid Line Temperature (LIQ): Any time LIQ is sensed in oper­
ating range, value is displayed if unit is in diagnostic mode or
manually enabled for non-diagnostic modes.
Pump Down Mode: While the unit is in pump down mode,
is displayed repeatedly. Errors are shown if they exist.
Table 7. Outdoor Control 7-Segment Unit Status Displays
P d
Example of Display
Idle Mode: Decimal point flashes at 1 Hz (0.5 second on, 0.5 second off).
Display OFF.
Soft Disabled: Top and bottom horizontal line and decimal point flash at 1
Hz (0.5 second on, 0.5 second off). Note - Control should be replaced.
All segments flashing at 2 Hz (unless error is detected) Note - Control
should be replaced.
The middle line flashes at 1 Hz for 2 seconds, followed by a 2-second dis­
play of the number of minutes left on the timer (value is rounded up: 2 min.
1 sec. is displayed as 3). If activated, the anti-short cycle delay time remain­
ing is displayed (default is 300 sec./5 min.).
The demand percentage is displayed first, followed by a pause, then the
outdoor fan speed and the ambient temperature.
C 5 0 F 7 0 0
pause pause
Following string is repeated if heat pump is active with outdoor fan speed
set at 600 RPM. Note - A - If available, displays outdoor ambient tempera­
ture.
H 3 3 F 6 0 0
pause pause
Following string is repeated if defrost is active.
d F pause
E 2 5 0
If first error is , second
E 2 3 1
Next codes (up to 10) are show using same method.
If there are no error codes stored:
is cleared, the following is displayed with 0.5 seconds character ON / OFF
time:
0 0 0 0
pause
Following display string is repeated if Error E 125 and E 201 are present:
E 1 2 5 E 2 0 1
pause
Following display string is repeated if Error E 440 is present while outdoor
fan speed at 700RPM:
F 7 0 0 E 4 4 0
pause
Following display string is repeated if cooling is active with outdoor fan
speed set at 650 RPM and OAT is 104
C 3 5 F 6 5 0
pause pause
Following display string is repeated if heat is active with outdoor fan speed
set at 550 RPM and OCT is 25
H 3 5 F 5 5 0
pause pause
Following display string is repeated if cooling is active with outdoor fan
speed set at 650 RPM and LIQ is 105
C 3 1 F 6 5 0
pause pause
Following display string is repeated:
P d P d
pause
P d E 4 4 0
pause pause
Page 37
A 7 6
A 7 6
E 2 3 1 E 2 5 0
pause
E 0 0 0
pause . After the fault memory
º
F:
A 1 0 4
pause
º
F:
c 7 7
pause
º
F:
L 1 0 5
pause
P d E 4 4 0
pause
pause
XP25