35
b. Select any value less than 50% for low stage
operation and any value greater than 50% for
high stage operation.
3. Conrm thermostat heating call functions properly
with equipment.
Dehumidication allows the furnace’s circulator blower to
operate at a reduced speed during a combined thermostat
call for cooling demand with a parallel humidistat. This
lower blower speed increases dehumidication of the
conditioned air as it passes through the indoor coil. The
control board is equipped with a 24 volt dehumidication
input (DH) located on the thermostat wiring connector.
The terminal can be congured to enable dehumidication
when the input is energized or de-energized. When using
an external dehumidistat, connect it between the R and DH
terminals. If the humidistat closes on humidity rise or the
thermostat energizes this terminal when dehumidication is
required, set the control board “dHL” (Dehum Logic) menu
setting to “HI” using the push buttons or HVAC
phone application. If the humidistat opens on humidity
rise or the thermostat de-energizes this terminal when
dehumidication is required, set the “dHL” (Dehum Logic)
menu to “Lo” using the push buttons or HVAC
phone application.
The control is equipped with a 24VAC Aux Alarm to be
used for a condensate switch install (designated by
CONDENSATE IN/OUT on the control). By default, the
connected AUX switch is normally closed and opens when
the water level in the evaporator coil base pan reaches an
undesirable level. The control responds by displaying an
EEf error code and turning o the outdoor condensing unit.
If the AUX switch is detected to be in the closed position
for 30 seconds, normal operation resumes and the error
message is no longer displayed.
LEFT CENTER
RIGHT
6. Conrm thermostat heating and cooling calls
function properly with equipment.
EXTREMELY IMPORTANT: The furnace only requires
a single W input for 2 stage gas heat control. Internal
algorithms will control staging of the gas furnace
automatically
1. Connect all necessary thermostat wires to the
thermostat connector on the furnace control as shown
in the following diagram.
R
W
DH/Y2
C
G
Optional
Optional
Dehum
R
W
C
G
2. Download the HVAC phone application
and use it to congure/test furnace operations.
a. Two-stage Operation using the
HVAC application:
a. Select the gas heat icon after entering the
furnace menus.
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