36
XC20
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.
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.
7-SEGMENT POWER-UP DISPLAY STRING
OR
OR
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.
THROUGH
OR
(These are just examples of firmware version, unit type,
unit nominal capacity and unit codes.)
UNIT CODE
UNIT TYPE, SIZE AND MODEL
NOT PROGRAMMED
2-TON HEAT PUMP, XP20-024
3-TON HEAT PUMP, XP20-036
4-TON HEAT PUMP, XP20-048
5-TON HEAT PUMP, XP20-060
2-TON AIR CONDITIONER, XC20-024
3-TON AIR CONDITIONER, XC20-036
4-TON AIR CONDITIONER, XC20-048
5-TON AIR CONDITIONER, XC20-060
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.
OR
7-SEGMENT POWER-UP DISPLAY STRING EXAMPLE
FIRMWARE
VERSION
UNIT
TYPE
UNIT
CAPACITY
UNIT
CODE
.
IDLE MODE
.
.
Figure 15. Outdoor Control 7-Segment Unit Status Displays
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