Segment Alert And System Status Codes; Reconfiguring Outdoor Control Using Icomfortt Thermostat - Lennox Signature XP21 Series Installation And Service Procedure

Fan RPM Model Number
Profile
0 XC/XP17−024
1 XC/XP17−030
2 Not assigned
3 Not assigned
4 XC/XP17−036 and −042
5 Not assigned
6 XC/XP17−048 and −060
7 Not assigned
8 Not assigned
9 Not assigned
10 XP21−024
11 XC21−024
12 XC/XP21−036
13 Not assigned
14 XC21−048, − 060 and
XP21−048
15 XP21−060
Seven−Segment Alert and System Status
Codes
Alert codes are displayed using the seven−segment display
located on the outdoor control.
NOTE System fault and lockout alarm code displays
takes precedence over system status (cooling, heating
stages or defrost/dehumidification).
The seven−segment will display an abnormal condition (er-
ror code) when detected in the system. A list of the codes
are shown in table 19.
RESETTING ALERT CODES
Alert codes can be reset manually or automatically:
4. Manual Reset
Manual reset can be achieved by one of the following
methods:
S
Disconnecting R wire from the main control's R ter-
minal.
Table 18. Fan RPM Profiles
Stage 1 Stage 1
PWM % RPM
55 400
62 450
69 500
71 550
83 600
90 650
92 675
97 700
48 350
55 400
58 425
65 475
72 525
79 575
83 600
86 625
5. Automatic Reset
Reconfiguring Outdoor Control using
icomfortt Thermostat
If any component of the HVAC system has been changed,
e.g. replacing an outdoor sensor, reconfiguring the system
will be required. To begin reconfiguring a system, press the
setup tab. Note: Even though its in a communicating sys-
tem, the fan profile will need to be set because the
icomfortt thermostat does not know what the profile
should be.
Refer to the icomfortt Thermostat Installer Setup Guide
for configuration procedures.
Page 51
Stage 2 Stage 2
PWM % RPM
55 400
62 450
69 500
76 550
83 600
90 650
92 675
97 700
55 400
62 450
69 500
76 550
83 600
90 650
92 675
97 700
S
Turning the indoor unit off and back on again
After power up all existing codes are cleared.
After an alert is detected, the main control continues to
monitor the unit's system and compressor operations.
When/if conditions return to normal, the alert code is
turned off automatically.
EDA Stage EDA Stage
PWM % RPM
55 400
62 450
69 500
71 550
83 600
90 650
92 675
97 700
27 200
27 200
27 200
27 200
30 225
30 225
30 225
30 225
XP21