507582-04
Page 37 of 54
Issue 2220
Thermostat
Install a room thermostat according to the instructions
furnished with it. Select a location on an inside wall that
is not subject to drafts, direct sunshine, or other heat
sources. The initial heat anticipator setting should be equal
to the total current draw of the control circuit. Low voltage
thermostat connections are to be made to the integrated
ignition/blower control board as indicated on the wiring
diagram.
Integrated Control DIP Switch Settings
A96DF2E & 96G2DFE units are equipped with a two-
stage integrated control. This control manages ignition
timing, heating mode fan off delays and indoor blower
speeds based on selections made using the control dip
switches and jumpers. The control includes an internal
watchguard feature which automatically resets the ignition
control when it has been locked out. After one hour of
continuous thermostat demand for heat, the watchguard
will break and remake thermostat demand to the furnace
and automatically reset the control to relight the furnace.
Heating Operation DIP Switch Settings Switch 1 --
Thermostat Selection
This unit may be used with either a single-stage or two-stage
thermostat. The thermostat selection is made using a DIP
switch which must be properly positioned for the particular
application. The DIP switch is factory-positioned for use
with a two-stage thermostat. If a single-stage thermostat is
to be used, the DIP switch must be repositioned.
a. Select “OFF” for two-stage heating operation
controlled by a two-stage heating thermostat
(factory setting);
b. Select “ON” for two-stage heating operation
controlled by a single-stage heating thermostat.
This setting provides a timed delay before second-
stage heat is initiated.
Switch 2 -- Second Stage Delay (Used with Single-
Stage Thermostat Only)
This switch is used to determine the second stage on
delay when a single-stage thermostat is being used. The
switch is factory-set in the OFF position, which provides
a 7-minute delay before second-stage heat is initiated.
If the switch is toggled to the ON position, it will provide
a 12-minute delay before second-stage heat is initiated.
This switch is only activated when the thermostat selector
jumper is positioned for single-stage thermostat use.
Indoor Blower Operation DIP Switch Settings Switches
3 and 4 -- Heating Mode Blower-Off Delay
The blower-on delay of 30 seconds is not adjustable. The
blower-off delay (time that the blower operates after the
heating demand has been satisfied) can be adjusted by
moving switches 3 and 4 on the integrated control. The
unit is shipped from the factory with a blower-off delay
of 90 seconds. The blower off delay affects comfort and
is adjustable to satisfy individual applications. Adjust
the blower off delay to achieve a supply air temperature
between 90° and 110°F at the exact moment that the blower
is de-energized. Longer off delay settings provide lower
supply air temperatures; shorter settings provide higher
supply air temperatures. Table 12 provides the blower off
timings that will result from different switch settings.
Blower Off Delay
(Seconds)
Switch 3
Switch 4
60
On
Off
90 (Factory)
Off
Off
120
Off
On
180
On
On
Table 12.
Blower Off Heating Mode Delay Switch
Settings
Switch 5 -- Cooling Mode Blower-Off Delay
The unit is shipped from the factory with the dip switch
positioned OFF for a 45 second delay. Table 13 provides
the cooling mode off delay settings.
Blower Off Delay
(Seconds)
Switch 5
45 (Factory)
Off
2
On
Table 13.
Blower Off Cooling Mode Delay Switch
Settings
Switches 6 and 7 -- Continuous Fan Mode
Continuous fan speed can be controlled by changing
DIP switch positions. Table 14 below provides DIP switch
settings for continuous fan mode.
Table 14. Continuous Fan Mode Settings
Continuous Fan Mode
Switch 6
Switch 7
Low Heat Speed
(factory)
Off
Off
Switch 8
DIP Switch 8 is not powered and not used. Switching from
on/off will not change any output.