Lennox CBX40UHV Series - Page 31

Page 31
CBX40UHV
FIELD TEST MODE (NOTE  BOARD MUST BE IN IDLE MODE)
Single Character LED
Display
Action
Solid
-
To enter Field Test Mode, push and hold button until solid appears, release button. Display will blink.
Blinking
-
Push and hold button until required symbol displays.   or 
CONFIGURING ELECTRIC HEAT SECTIONS
Solid
K
Release push button  control will cycle the indoor blower motor on to the selected heat speed and stage the electric
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 Field Test Mode.
IMPORTANT  After electric heat is installed  the control must be manually configured to detect number of
heating sections.
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 Field Test 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
Push and hold button  Control will display each unit size code (letter or number) for different air handler models for
three seconds. When the correct unit size code is displayed, release button. Selected code will flash for a ten second
period. During that period, hold push button for three seconds to store code. Once code is stored, control will auto-
matically exit Field Test Mode. (If ten second period expires or push button is held less than three seconds, control
will automatically exit Field Test Mode and go into idle mode without storing unit size code. If this happens, configur-
ing function 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 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. Display will blink.
Blinking
c
Push button to confirm command to delete codes. Error codes are cleared.