Page 38
XP25
PUSH - BUTTON OPERATION
_
_
Allows field access to Diagnostic, Fan, Defrost and Error Code Re
call modes.
Outdoor control must be in
IDLE
mode (no heating or
cooling operation)
To enter mode options, push and hold button next to 7seg
ment display until
DASH
symbol appears. Immediately re
lease the button. Once dash starts flashing, proceed to
next step.
Push and hold button until mode
selection displays on the 7seg
ment display
(
,
,
,
or
).
Immediately release the button,
proceed to next step.
Push and hold button until the selection stops flashing, then release button. The 7 seg
ment display shows the selected mode and the control performs the selected function.
NOTE - See table 6 for explanation of codes.
Figure 18. Push-Button Operation
Unit Selection Code for Outdoor Control
If the single-character display shows three (3) horizontal lines, the unit selection code needs to be programmed. Press and hold the button until the
menu option is displayed, release button. The singlecharacter display displays the selected mode per example in figure 17 on page 36. When the de
sired unit selection code appears, press and hold the button until it stops flashing, then release.
Unit Code
Unit Type
Unit Model
2-ton heat pump
XP25-024
3-ton heat pump
XP25-036
4-ton heat pump
XP25-048
7
5-ton heat pump
XP25-060
2-ton air conditioner
XC25-024
3-ton air conditioner
XC25-036
4-ton air conditioner
XC25-048
5-ton air conditioner
XC25-060
Idle mode — decimal flashes at 1 Hertz > 0.5 second ON, 0.5 second OFF. Idle mode is when the system is energized but no demand.
Display
Symbol or
Character
Display
Fan Test and Display String Option
Displayed
during start-up
or power
recycling.
Display string shows outdoor control firmware version
> pause>
or
unit >pause>unit capacity in BTUs>pause >unit code.
If 3 horizontal bars are displayed during any sequence of this display string, it indicates that the specific parameter is not configured.
.
Idle mode — decimal flashes at 1 Hertz > 0.5 second ON, 0.5 second OFF.
or
Indicates either cooling (
) or heating (
) mode and demand percentage.
Code displays when system is in defrost mode. To enter 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.
Indicates outdoor fan RPM speed.
Control must be in Idle mode:
To enter fan test option -
mode, push and hold button
until solid – appears, release button. Display begins flashing. Within 10 seconds, push
and hold button until required symbol
displays, release button. Display begins flashing.
Within 10 seconds, push and hold button until display stops flashing, release button.
Control outputs DC voltage on PWM and COM terminals. Outdoor fan cycles
ON
for 10
minutes at 490 RPM. To exit test – Push and hold button until three horizontal bars dis
play. Release button, outdoor fan cycles
OFF
.
indicates that the display is show
ing the ambient temperature in
F
(at the outdoor unit sensor).
displayed during configuration
mode, indicates the option to display
coil and liquid line temperatures is
enabled.
Control can be in Idle or demand mode
: To enter display configuration option -
mode,
push and hold button until solid – appears, release button. Display begins flashing. Within 10
seconds, push and hold button until required symbol
displays, release button. Display be
gins flashing. Within 10 seconds, push and hold button until display stops flashing, release
button. Display shows error (
) code(s), ambient (
), outdoor coil (
) and liquid (
) tempera
tures in Fahrenheit.
NOTE - If button is not pushed in the 10-second time period, the control exits the test mode. If
this occurs, test mode must be repeated.
