506860-03
Issue 1946
Page 22 of 27
Display
Display and action (normal operation)
Display and action (configuration and test mode)
Power-Up
Display string displays > number of unit stages > pause >
AC
or
HP
unit > pause > unit capacity in BTUs > pause >
RPM setting of outdoor fan. If 3 horizontal bars are displayed during any sequence of this string, it indicates that the
specific parameter is not configured.
-
Idle mode - decimal blinks at 1 Hz > 0.5 second ON, 0.5 second OFF
A
A
in the display string represents the ambient
temperature in °F at the outdoor sensor on the outdoor
unit.
Enter
A
test mode: Display will string active error code(s)
E
, ambient
A
, coil
c
and discharge
d
temperature in °F at
outdoor unit.
c
Enter A test mode: Display will string active error codes (
E
), ambient (
A
), coil (
c
), and discharge (
d
) temperature in °F
at outdoor unit.
d
d
- dehumidification mode string >
d
> pause >
F
(Outdoor fan) RPM > pause >
A
(ambient temp displayed)
> pause > repeat mode.
IMPORTANT
: On 2-stage unit,
R to DS link must be cut and correct RPM outdoor fan
profile selected for outdoor fan to operate at lower RPM
speed when EDA is active.
Enter
d
test mode: Forced defrost. (System must be
configured as HP. Unit must be running in heating
mode). Test defrost will terminate when coil terminate
temperature is reached (or 10 seconds, whichever is
longer) or 14 minutes if coil temperature remains below
terminate temperature or by pushing button down for less
than 2 seconds. Enter
A
test mode: Display will string
active error codes
E
, ambient
A
, coil
c
and discharge
d
temperature in °F at outdoor unit.
dF
dF
displays when system is in defrost mode - unit must be running in heating mode, outdoor ambient must be below
65°F and outdoor coil temperature must be below defrost termination temperature.
F*
F
in the display string indicates RPM setting output on
terminals PWM and com (used with EBM motors). RPM
displayed does not apply to motor connected on ECM Y1
and ECM Y2.
Enter
F
test mode: Control outputs DC Voltage onto
PWM and com terminals. Outdoor fan will cycle ON for
10 minutes at 490 RPM. To exit test - Push and hold
button until three horizontal bars display. Release button,
outdoor fan will cycle OFF. (Test DOES NOT output DC
voltage to ECM Y1 and ECM Y2 terminals)
H1
Heat stage 1 string display > pause >
F
outdoor fan RPM displayed > pause >
A
(ambient temperature displayed >
pause > repeat mode.
H2
Heat stage 2 string display > pause >
F
outdoor fan RPM displayed > pause >
A
(ambient temperature displayed >
pause > repeat mode.
C1
Cool stage 1 string display > pause >
F
outdoor fan RPM displayed > pause >
A
(ambient temperature displayed >
pause > repeat mode.
C2
Cool stage 2 string display > pause >
F
outdoor fan RPM displayed > pause >
A
(ambient temperature displayed >
pause > repeat mode.
* Information will be displayed, but does not apply to this product.
Table 8. Field Test and Program Menu Options
