507746-01
Issue 1821
Page 22 of 39
Table 12. AHC Configuration, Test and Error Recall (Fault and Lockout) Function
NOTE — AHC MUST BE IN IDLE MODE)
Single Character LED Display
Action
Solid
-
Push and hold button until solid appears, release button. Display will blink.
Blinking
-
Push and hold button until required symbol displays.
H A
or
P
CONFIGURING ELECTRIC HEAT SECTIONS
Solid
H
Release push button - control will cycle the indoor blower motor on to the selected heat speed
and stage the electric heat relays on and o to automatically detect number of electric heat
sections. Control will store the number of electric heat sections. Control will automatically exit
current active mode.
INDOOR BLOWER TEST
Solid
A
Release push button - control cycles indoor blower on for ten seconds at 70% of maximum air for
selected capacity size unit. Control will automatically exit
current active mode.
CONFIGURING UNIT SIZE CODES
Single Character LED Display
Action
Solid
P
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.
IMPORTANT — All field replacement controls may be manually configured to confirm air handler
model size and capacity.
Blinking
P
1. When the correct Unit Sized Code is displayed, RELEASE push button. Selected code will
ash for 10 second period.
2. During ten second period, HOLD push button until code stops blinking (three seconds
minimum).
3. 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.
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)
Solid
E
To enter
Error Code Recall Mode
— PUSH and HOLD button until solid E appears, then
RELEASE button.
Control will display up to ten error codes stored in memory. If E000 is displayed, there are no
stored error codes.
Solid
≡
To exit
Error Code Recall Mode
— PUSH and HOLD button until solid three horizontal bars
appear, then RELEASE button.
NOTE - Error codes are not cleared
Solid
c
To clear error codes stored in memory, continue to HOLD push button while the three horizontal
bars are displayed. Release push button when solid
c
is displayed.
Blinking
c
Push and hold for one (1) second, release button. Seven-segment will display 0000 and exit error
recall mode.
