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

IMPORTANT: PRIOR TO RUNING 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 thermostat. Remove
thermostat from base plate or remove wires to thermostat 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
Press 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 S30 will now detect the heat strip information stored
in the air handler control.
CONFIGURATING HEAT SECTIONS ON AIR HANDLER CONTROL
Air Handler Control
FUSE 3 AMP
XFMR 24V
24 VAC
COM
1
3 2 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
10
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