Configurating Heat Sections On Air Handler Control - Lennox iComfort S30 Installation And Setup Manual

CONFIGURATING HEAT SECTIONS ON AIR HANDLER CONTROL

IMPORTANT: PRIOR TO RUNNING THE ICOMFORT S30 INSTALLER
SETUP, ELECTRIC HEAT MUST BE MANUALLY CONFIGURED!
IMPORTANT: After electric heat strips are installed, the air handler control
must be manually configured to detect the number of electric heat sections.
(See also 506181-01 for complete configuration guide.)
This procedure is applicable only to the CBX32MV-XX-230-6-06 and higher
and CBX40UHV (all models). To configure the heat strips so that they will be
detected by the thermostat:
S
Power must be applied to the air handler but NOT to the Smart Hub.
Remove wires to Smart Hub at the air handler.
S
On the air handler control, unit should be in idle mode (decimal blinks at
1 Hertz—0.5 second ON, 0.5 second OFF.
S
Select field test mode—press and hold the push button until solid "–"
appears; release button. Display will blink.
S
Touch the push button and wait for the display LED to show "H" (capital H),
then release the button.
S
The air handler control cycles the indoor blower motor "on" to the selected
heat speed and stages the electric heat relays "on" and "off" to
automatically detect the number of electric heat sections. The air handler
control stores the number of electric heat sections, then automatically exits
"Field Test Mode".
S
®
At this point, the iComfort
stored in the air handler control.
S30 will now detect the heat strip information
S
Turn off power and connect all low voltage wiring.
Air Handler Control
FUSE 3 AMP
XFMR 24V
24 VAC
COM
3 2 1
P8
4
6 5
9 8 7
XFMR LINE
L2 L1
INDOOR
G L2 L1
BLOWER
POWER
EARTH
INDOOR BLOWER
SIGNAL
4 5 6
1 2 3
I + I −
LINK
PUSHBUTTON
14
HEAT
HUMIDITROL
1 2 3 4
C DH
COOL HUMIDIFICATION
1 2 3 4 SMART AUTO
EVENHEAT
DELAY
1 2 3 4
BLOWER
ADJUST
ONLY CFM
NORM + −
1 2 3 4
A92
INTEGRATED
CONTROL
R I + I − C
OUTDOOR DISCHARGE
R I + I − C
OUTDOOR UNIT
AIR SENSOR AIR SENSOR
THERMOSTAT
LED
DS
O
L
H
DH
R
C
Y1
Y2
G
W3
W2
W1