Page 44
31-5000751 Rev. 0
Description
Example of Display
Idle Mode
: Decimal point flashes at 1 Hz.
Idle Mode
: Decimal point flashes at 1 Hz (0.5 second on, 0.5 second off).
Display OFF.
O.E.M. Test Mode
All segments flashing at 2 Hz (unless error is detected). NOTE - Control
should be replaced.
Anti-Short-Cycle Delay
The middle line flashes at 1 Hz for 2 seconds, followed by a 2-second
display 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
remaining is displayed (default is 300 sec./5 min.).
Cooling Capacity
: Shows cooling stage C1 or C2 operating.
Cooling compressor capacity (1second on, 0.5 second off) followed by
ambient temperature.
thermostat with second stage cooling active and ambient of 95F : C 2
pause A 9 5 repeat.
C 5 0
pause
A 7 6
Diagnostic recal
l: Shows the last 10 stored diagnostic error codes.
If first error is
E 2 5 0
, second
E 2 3 1
pause
E 2 5 0
pause
E 2 3 1
Next codes (up to 10) are shown using same method.
Fault memory clears
If there are no error codes stored:
E
pause
0 0 0
.
After the fault memory is cleared, the following string flashes every 0.5
seconds:
0 0 0 0
pause
Active error in outdoor control Idle mode
: Show all active error(s)
codes.
Following display string is repeated if Error E 125 and E 201 are present:
E 1 2 5
pause
E 2 0 1
Active error in run mode
: Show current status and all active error(s)
codes.
Following display string is repeated if Error E 440 is present while cooling
demand is 80 percent:
C 8 0
pause
E 4 4 0
Outdoor Ambient Temperature (OAT)
: Any time OAT is within operating
range, value is displayed if unit is in diagnostic and non-diagnostic
modes.
Following display string is repeated if cooling is active and OAT is 104
°
F:
C 3 5
pause
A 1 0 4
pause
Liquid Line Temperature (LIQ)
: Any time LIQ is sensed in operating
range, value is displayed if unit is in diagnostic mode or manually enabled
for non-diagnostic modes.
Following display string is repeated if cooling is active and LIQ is 105
°
F:
C 3 1
pause
L 1 0 5
pause
Charge Mode
: When unit is in the charge mode, Suction pressure
(SPxxx), Suction Temp (Stxx.x), Superheat (SHxx.x), Liquid pressure
(LPxxx), Liquid Temp (Ltxx.x) and subcooling (SCxx.x) will be scrolled on
the 7-segment display
The following string is repeated:
S P 1 3 5
pause
S t 6 2
pause
S H 1 5
pause
L P 3 4 5
pause
L t 9
6
pause
S C 1 0
Repeat
Table 13. Outdoor Control 7-Segment Unit Status Displays