508187-01
Issue 2116
Page 20 of 51
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 5 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 5.
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 6 provides the cooling
mode off delay settings.
Blower Off Delay
(seconds)
Switch 5
45 (Factory)
Off
2
On
Table 6.
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 7 provides DIP switch settings for
continuous fan mode.
Continuous Fan
Mode
Switch 6
Switch 7
Low Heat Speed
(Factory)
Off
Off
Low Cool Speed
Off
On
High Heat Speed
On
Off
High Cool Speed
On
On
Table 7. Continuous Fan Mode Settings
Onboard Links
W914 Dehum
Onboard link W914, is a clippable connection between
terminals R and DS on the integrated control. W914 must
be cut when the furnace is installed with a thermostat which
features humidity control. If the link is not cut, terminal “DS”
will remain energized not allowing the blower to reduce to
low cool speed upon a call for dehumidification.
W951 Heat Pump (R to O)
Onboard link W951 is a clippable connection between
terminals R and O on the integrated control. W951 must
be cut when the furnace is installed in applications which
include a heat pump unit and a thermostat which features
dual fuel use. If the link is left intact, terminal “O” will remain
energized eliminating the HEAT MODE in the heat pump.
W915 2 Stage Compr (Y1 to Y2)
Onboard link W915 is a clippable connection between
terminals Y1 and Y2 on the integrated control. W915 must
be cut if two-stage cooling will be used. If the Y1 to Y2
link is not cut the outdoor unit will operate in second-stage
cooling only.
If any onboard link is cut by mistake, install a jumper
across the corresponding terminals on the low voltage
terminal strip. Do not replace control.
IMPORTANT
