Lennox G32V Series Service Literature page 26

Dip Switch Settings
Switches 1 and 2 −− Blower Off Delay −− The blower−on
delay of 45 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 1
and 2 on the integrated control board. 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 temperatu-
res.The table below provides the blower off timings that will
result from different switch settings.
TABLE 22
Blower Off Delay Switch Settings
Blower Off Delay
(Seconds)
60
90
120
180
Switch 3 −− Second Stage Delay (Used with Single−
Stage Thermostat Only) −− This switch is used to deter-
mine the second stage on delay when a single−stage ther-
mostat is being used. The switch is factory−set in the ON
position, which provides a 10−minute delay before second−
stage heat is initiated. If the switch is toggled to the OFF
position, it will provide a 15−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.
Switch 4 −− Not used.
Switches 5 and 6 −− Cooling Mode Blower Speed −−
Switches 5 and 6 are used to select cooling blower motor
speed. The unit is shipped from the factory with the dip
switches positioned for high speed (4) indoor blower motor
operation during the cooling mode. The table below pro-
vides the cooling mode blower speeds that will result from
different switch settings. Refer to blower data tables at the
front of this manual for corresponding cfm values.
TABLE 23
Cooling Mode Blower Speeds
Speed
1 − Low
2 − Medium Low
3 − Medium High
4 − High (Factory)
Switch 1 Switch 2
Off Off
Off On
On Off
On On
Switch 5 Switch 6
On On
Off On
On Off
Off Off
Switches 7 and 8 −− Blower Speed Adjustment −−
Switches 7 and 8 are used to select blower speed adjust-
ment settings. The unit is shipped from the factory with the
dip switches positioned for NORMAL (no) adjustment. The
dip switches may be positioned to adjust the blower speed
by +10% or −10% to better suit the application. The table be-
low provides blower speed adjustments that will result from
different switch settings. Refer to blower data tables at the
front of this manual for corresponding cfm values.
Blower Speed Adjustment
Adjustment
+10% (approx.)
NORMAL (Factory)
−10% (approx.)
Switches 9 and 10 −− Cooling Mode Blower Speed
Ramping −− Switches 9 and 10 are used to select cooling
mode blower speed ramping options. Blower speed ramp-
ing may be used to enhance dehumidification performance.
The switches are factory set at option A which has the
greatest effect on blower motor performance. The table be-
low provides the cooling mode blower speed ramping op-
tions that will result from different switch settings. The cool-
ing mode blower speed ramping options are detailed on the
next page. See unit nameplate for manufacturing date.
Cooling Mode Blower Speed Ramping
Ramping Option
A (Factory)
B
C
D*
*Only option for CCB1
Page 26
TABLE 24
Switch 7 Switch 8
On Off
Off Off
Off On
TABLE 25
Switch 9 Switch 10
Off Off
On Off
Off On
On On