18-CE12D1-1D-EN
105
I
dL
Ht1
TP2
Ht2
Tp4
CL1
TP3
CL2
TP7
HP1
TP3
HP2
Tp7
COF
Tp1
DFT
TP3
S9X1 – S9X2 – S9B1
System Status Menu
IDL
= Idle, no demand for cooling, heating, or fan
HT1
= Demand for 1
st
stage gas heat (
Ht
= S9X1 & S9B1)
HT2
= Demand for 2
nd
gas heat
CL1
= Demand for 1
st
stage cooling (
CP1
= S9X1 & S9B1)
CL2
= Demand for 2
nd
stage cooling (
CP2
= S9X1)
HP1
= Demand for 1
st
stage heat pump (
CP1
= S9X1 & S9B1)
HP2
= Demand for 2
nd
stage heat pump (
CP2
= S9X1)
COF
= Demand for continuous fan
DFT
= Demand for outdoor unit defrost, furnace running in gas heat mode
TP1-9
= Tap selected for airflow
NOTE:
(1) The menu status displayed is solely dependent on the input of 24VAC that is
applied to the low voltage terminal strip.
(2) The status will alternate between the system mode and the airflow request every 2
seconds.
(3) If an error occurs, an E*.* will alternately flash with the system mode and airflow
request. See first example
Example
Tap #2
e3.1
Example
1st Stage Pressure
Switch Error
Run Test Mode
Run Test Mode:
To enter Run Test Mode, scroll to
using the Menu key, then push the op!on key. The LED will flash
three
!mes, then begin the test.
To exit the test mode, momentarily push the Menu key, cycle power to the furnace, or make a valid thermostat
call for capacity or fan.
Sequence of Run Test Mode
-Turns the inducer on in 1
st
stage for 30 seconds
– Turns on the inducer on 2
nd
stage for 30 seconds (N/A for S9B1/S9X1)
– Turns the igniter on for 10 seconds
– Turns the circula!ng blower on 1 stage compressor speed for 10 seconds
– Turns the circula!ng blower on 2 stage compressor speed for 10 seconds (N/A for S9B1)
– Turns the circula!ng blower on 1
st
stage gas heat speed for 10 seconds
– Turns on the circula!ng blower on 2
nd
stage gas heat speed for 10 seconds (N/A for S9B1, S9X1)
The above sequence will repeat two more !mes unless the Run Test Mode is exited, see above
Important:
The Run Test Mode does not test fire the furnace or bring the outdoor unit on. It is designed to allow
the technician to observe each mode to ensure the IFC, inducer, and circula!ng blower are performing as
intended.
nd
st
S9X1 – S9X2 – S9B1
