Lennox XC25-024-230-01 Installation And Service Procedure page 35

Table 6 continued
Description
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 within
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.
PUSH − BUTTON OPERATION
Allows field access to Diagnostic, Fan, Defrost and Error Code Re­
call modes.
To enter mode options, push and hold button next to 7­seg­
ment display until DASH symbol appears. Immediately re­
lease the button. Once dash starts flashing, proceed to
next step.
Unit Selection Code for Outdoor Control
If the single-character display shows three (3) horizontal lines, the unit selection code needs to be programmed. Press and hold the button until the P U
menu option is displayed, release button. The single­character display displays the selected mode per example in figure 16 on page 34. When the desired
unit selection code appears, press and hold the button until it stops flashing, then release.
Unit Code Unit Type
2
2-ton heat pump
4
3-ton heat pump
6
4-ton heat pump
7
5-ton heat pump
9
2-ton air conditioner
11
3-ton air conditioner
13
4-ton air conditioner
14
5-ton air conditioner
P d
Push and hold button until the selection stops flashing, then release button. The 7 seg­
ment display shows the selected mode and the control performs the selected function.
Figure 17. Push-Button Operation
Example of Display
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 display string will displayed with 0.5 seconds char­
acter 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
º
set at 550 RPM and OCT is 25 F:
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 P d
pause pause
Outdoor control must be in
IDLE mode (no heating or
cooling operation).
NOTE - See table 6 for explanation of codes.
Push and hold button until mode
selection displays on the 7­seg­
_
ment display (A, F, P U, d F, E or
c). Immediately release the button,
proceed to next step.
_
Unit Model
XP25-024
XP25-036
XP25-048
XP25-060
XC25-024
XC25-036
XC25-048
XC25-060
35
E 2 3 1 E 2 5 0
pause pause
E 0 0 0
pause . After the fault memory
º
F:
A 1 0 4
pause
c 7 7
pause
º
F:
L 1 0 5
pause
E 4 4 0
pause
A
A
XC25