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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
pear.
UNIT CODE
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
6 4
2-TON HEAT PUMP
6
5
3-TON HEAT PUMP
6
6
4-TON HEAT PUMP
7
6
5-TON HEAT PUMP
Figure 18. Outdoor Control 7-Segment Unit Status Displays
7-SEGMENT POWER-UP DISPLAY STRING
(These are just examples of firmware version, unit type,
NS22HM-24
7-SEGMENT POWER-UP DISPLAY STRING EXAMPLE
2
NS22HM-36
FIRMWARE
VERSION
NS22HM-48
NS22HM-60
.
OR
OR
6 4
THROUGH
unit nominal capacity and unit codes.)
.
A C
UNIT
UNIT
TYPE
CAPACITY
OR
6
7
OR
.
6 4
UNIT
CODE
IDLE MODE
31-5000750 Rev. 1
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