Ahc Configuration, Test And Error Recall Function - Lennox CBX32MV-018/024 Manual

Table 11. AHC Configuration, Test and Error Recall (Fault and Lockout) Function
NOTE — AHC MUST BE IN IDLE MODE)
Single Character LED
Action
Display
-
Solid Push and hold button until solid appears, release button. Display will blink.
-
Blinking
Push and hold button until required symbol displays
CONFIGURING ELECTRIC HEAT SECTIONS
Release push button - control will cycle the indoor blower motor on to the selected heat speed and stage the electric
H
Solid heat relays on and off to automatically detect number of electric heat sections. Control will store the number of elec­
tric heat sections. Control will automatically exit current active mode.
INDOOR BLOWER TEST
Release push button - control cycles indoor blower on for ten seconds at 70% of maximum air for selected capacity
A
Solid
size unit. Control will automatically exit current active mode.
CONFIGURING UNIT SIZE CODES
Single Character LED
Action
Display
RELEASE push button - This mode allows the field to select a unit size code (number or letter) that matches the air
handler model size and capacity.
p
Solid
IMPORTANT — All field replacement controls may be manually configured to confirm air handler model size
and capacity.
p
Blinking
NOTE - If ten second period expires, or push button is held less than 3 seconds, control will automatically exit
current active mode and go into IDLE Mode without storing unit size code. If this occurs, then Unit Size Code
configuring procedure must be repeated.
ERROR CODE RECALL MODE (NOTE — CONTROL MUST BE IN IDLE MODE)
To enter Error Code Recall Mode — PUSH and HOLD button until solid E appears, then RELEASE button.
e
Solid
Control will display up to ten error codes stored in memory. If E000 is displayed, there are no stored error codes.
To exit Error Code Recall Mode — PUSH and HOLD button until solid three horizontal bars appear, then
- -
RELEASE button.
Solid
-
NOTE - Error codes are not cleared
To clear error codes stored in memory, continue to HOLD push button while the three horizontal bars are displayed.
c
Solid
Release push button when solid c is displayed. Display will blink.
c
Blinking Push and hold for one (1) second, release button. Seven-segment will display 0000 and exit error recall mode.
10 When the correct Unit Sized Code is displayed, RELEASE push button. Selected code will flash for 10 second
period.
10 During ten second period, HOLD push button until code stops blinking (three seconds minimum).
10 Air Handler Control will store code in memory and exit current active mode . LED display will go blank and then
the Unit Size Code will display for 2 to 5 seconds.
H A P
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CBX32MV