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Power-up - Unit selection code (two-digit number) displayed
represents unit size code (outdoor unit capacity).
During initial power-up, firmware version, unit type, unit capacity
and unit selection code will appear on the 7-segment display.
If three horizontal bars are shown in the 7-segment display
during power-up, the outdoor control did not store the last
quence for that setting must be repeated.
To
enter
unit
selection
mode, push and hold the
button next to the 7-segment
display until dash symbol
appears
and
immediately
release button. Once dash
starts flashing, proceed to
next step.
Push and hold button until the solid
sequence is displayed on the
7-segment display then immediately
release
the
button.
This
configuration sequence allows the
installer to select unit selection code
(number combination) that matches
the outdoor unit type and inverter.
Press and hold the button during
the
cycling display.
NOTE - Either the
will repeat 5 times and if a
selection is not made the control
will return to idle mode.
SELECTED
If three horizontal bars display in any
part of the 7-segment display string
during
power-up,
the
outdoor
control did not store the unit
selection code. If this occurs, the
configuration sequence for that
section of the display string must be
repeated.
Configuring Unit Selection Code
− −
−
Outdoor control is in IDLE mode
Yes
(No heating or cooling demand)
_
_
UNIT SELECTION
CODE
NOT
SELECTED
sequence
.
−
−
−
FIRMWARE
VERSION
Figure 22.
1. When
ton immediately. [Display flashes.]
2. Push and hold button until selection stops flashing during
one of the three cycles. [Release push button]
3. If selection is not made during those three cycles the control
returns to idle mode.
UNIT SELECTION
CODES
64
2-TON HEAT PUMP
65
3-TON HEAT PUMP
66
4-TON HEAT PUMP
67
5-TON HEAT PUMP
figuration mode and resets.
EXAMPLE 7-SEGMENT DISPLAY STRING
H P
UNIT
UNIT
TYPE
CAPACITY
No
Turn room thermostat
to OFF
UNIT
NS22HM-24
NS22HM-36
NS22HM-48
NS22HM-60
SELECTED
IDLE MODE
UNIT
(NO DEMAND)
CODE
NOT
SELECTED
.
31-5000750 Rev. 1
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