Honeywell S9240F2051 Installation Instructions Manual page 26

S9240F2051 MODULATING INTEGRATED FURNACE CONTROL
Idle mode
Field Test Mode - Idle
Active Error in Idle:
Shows all active error(s) codes.
The display example in this table shows the LED display when Error E126 and
E201 are present:
Active Error in Run Mode:
Shows current status and all active error(s) codes.
The display example in this table shows the LED display when Error E311 is
present while unit operates at 55% fire rate and blower speed at 880CFM:
DATS:
Any time the discharge air temperature sensor (DATS) is sensed within its
operating range and the indoor blower is running, the sensor temperature displays.
The display example in this table shows the LED display when heating 65% is
active with 850 CFM and the DATS reads 104°F:
Soft Lockout
Hard Lockout
Pressure switch proving states, purge states, HSI warm-up, TFI, etc. (All
transitional ignition states)
Heating stage:
Shows what stage of furnace heating is currently operating, the blower CFM, and
the flame current. Shown only while heating is active and unit is set up to work as
staged equipment (not modulating)
The display example in this table shows the LED display when the 2nd stage heat is
active, CFM of 1050 and flame current of 10.3uA.
NOTE: The flame current displayed, is the value read when the push button
was pressed at the beginning of the LED display sequence.
Heating input (%):
Shows what furnace input percent (40 to 100%) is currently operating, the blower
CFM, and the flame current. Shown only while heating is active and while unit is set
up to work as modulating equipment (not staged).
The display example in this table shows the LED display when the furnace input is
at 40% heat, CFM of 850, and flame current of 4.6uA.
NOTE: The flame current displayed, is the value read when the push button
was pressed at the beginning of the LED display sequence.
CFM:
Shows the current CFM demand of the main blower in actual CFM.
The display example in this table shows the LED display when the CFM = 1600.
Flame Current:
Shows the current flame signal in 0.1
The display example in this table shows the flame signal at 10.3
Indoor Blower (continuous fan):
Shows the current, actual CFM delivery of the main blower.
The display example in this table shows the CFM at 1600.
Diagnostic recall:
Shows the last 10 stored diagnostic codes. Diagnostic recall mode times out in 60
seconds.
The display example in this table shows the LED display for error 250.
NOTES: A button press interrupts the current display pattern.
E 0 0 0 flashes if there are no codes.
69-2807—01
Table 11. System Status LED Display.
Description
μ
A.
Only the decimal symbol blinks. There is no
display in idle mode.
"-" flashes
E 1 2 6
E 2 0 1
h 5 5 (Pause);
A 8 8 0 (Pause);
E 3 1 1
h 6 5
A 8 5 0 (Pause);
U 1 0 4 (Pause)
Top and bottom line and decimal point
flash.
Three horizontal lines and the decimal
point flash.
H
H 2 (Pause);
Display CFM (e.g. A 1050); (Pause);
Display Flame Current (e.g. F10.3);
Repeat
h 4 0 (Pause);
Display CFM (e.g. A 850); (Pause);
Display Flame Current (e.g. F4.6);
Repeat
A 1 6 0 0 (Pause)
F 1 0 . 3 (Pause)
μ
A.
A 1600 (Pause)
E 2 5 0 (Pause);
E (Pause);
Continues for up to 10 codes.
Pause for 3 seconds and start over.
26
a
Display Example
(LED display in bold)
(Pause);
(Pause);