Lennox XC25-024-230-01 Installation And Service Procedure page 34

POWER-UP / RESET:
FIRMWARE VERSION: During initial power-up or reset, the
first item displayed is the outdoor control firmware version.
Example to the right shows firmware version 2.3.
UNIT TYPE: The next item displayed is the self discovery
unit type. AC = air conditioner and HP = heat pump. If the
unit type cannot be determined, three bars appear.
UNIT NOMINAL CAPACITY: The next item to be displayed
is the self-discovery unit nominal capacity. Valid capacities
are 24 for 2-ton, 36 for 3-ton, 48 for 4-ton and 60 for 5-ton
units. If the unit type cannot be determined, three bars ap­
pear.
UNIT CODE: The next item to be displayed is the self discov­
ery unit code. (may be a single character or two characters).
If the unit code cannot be determined, three bars appear.
UNIT CODE
UNIT TYPE, SIZE AND MODEL
NOT PROGRAMMED
2
2-TON HEAT PUMP, XP25-024
4
3-TON HEAT PUMP, XP25-036
6
4-TON HEAT PUMP, XP25-048
7
5-TON HEAT PUMP, XP25-060
9
2-TON AIR CONDITIONER, XC25-024
1
1
3-TON AIR CONDITIONER, XC25-036
1
3
4-TON AIR CONDITIONER, XC25-048
4
1
5-TON AIR CONDITIONER, XC25-060
Description
Idle Mode: Decimal point flashes at 1 Hz.
Soft Disabled: Top and bottom horizontal line and decimal point
flash at 1 Hz.
O.E.M. 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.
XC25
Figure 16. Outdoor Control 7-Segment Unit Status Displays
Table 7. Outdoor Control 7-Segment Unit Status Displays
7-SEGMENT POWER-UP DISPLAY STRING
2
A C
OR
2
2
THROUGH
(These are just examples of firmware version, unit type,
unit nominal capacity and unit codes.)
7-SEGMENT POWER-UP DISPLAY STRING EXAMPLE
.
2 3 A C
FIRMWARE UNIT
VERSION TYPE
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
34
.
3
H P
OR
4
OR
1 4
OR
2 4 1 4
UNIT UNIT
CAPACITY CODE
A 7 6
.
IDLE MODE