Page 24
energized. Longer off delay settings provide lower supply
air temperatures; shorter settings provide higher supply
air temperatures.The table below provides the blower off
timings that will result from different switch settings.
TABLE 8
Blower Off Delay Switch Settings
Blower Off Delay
(Seconds)
Switch 1
Switch 2
60
Off
Off
90
Off
On
120
On
Off
180
On
On
Switch 3 -- Second Stage Delay (Used with Single-
Stage Thermostat Only) --
This switch is used to deterĆ
mine the second stage on delay when a single-stage therĆ
mostat is being used. The switch is factory-set in the ON
position, which provides a 10-minute delay before secĆ
ond-stage heat is initiated. If the switch is toggled to the
OFF position, it will provide a 15-minute delay before secĆ
ond-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 in G32V application.
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 moĆ
tor operation during the cooling mode. The table below
provides the cooling mode blower speeds that will result
from different switch settings. Refer to tables 13 through
13 for corresponding cfm values.
TABLE 9
Cooling Mode Blower Speeds
Speed
Switch 5
Switch 6
1 - Low
On
On
2 - Medium Low
Off
On
3 - Medium High
On
Off
4 - High (Factory)
Off
Off
Switches 7 and 8 -- Blower Speed Adjustment --
Switches 7 and 8 are used to select blower speed adjustĆ
ment settings. The unit is shipped from the factory with
the dip switches positioned for NORMAL (no) adjustĆ
ment. The dip switches may be positioned to adjust the
blower speed by -15% to better suit the application. The
table below provides blower speed adjustments that will
result from different switch settings. Refer to tables 13
and14 for corresponding cfm values.
TABLE 10
Blower Speed Adjustment
Adjustment
Switch 7
Switch 8
NORMAL (Factory)
Off
Off
-15% (approx.)
Off
On
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
ramping may be used to enhance dehumidification perĆ
formance. The switches are factory set at option A which
has the greatest effect on blower motor performance. The
table below provides the cooling mode blower speed
ramping options that will result from different switch setĆ
tings. The cooling mode blower speed ramping options
are detailed below.
TABLE 11
Cooling Mode Blower Speed Ramping
Ramping Option
Switch 9
Switch 10
A (Factory)
Off
Off
B
On
Off
C
Off
On
D
On
On
Ramping Option A (Factory Selection)
Motor runs at 50% for 1/2 minute.
Motor then runs at 82% for approximately 7-1/2 miĆ
nutes.
If demand has not been satisfied after 7-1/2 minutes,
motor runs at 100% until demand is satisfied.
Once demand is met, motor runs at 50% for 1/2 minĆ
ute.
Motor ramps down to off.
OFF
OFF
1/2 MIN
50% CFM
COOLING DEMAND
7-1/2 MIN
82% CFM
100%
CFM
1/2 MIN
50% CFM
Ramping Option B
Motor runs at 50% for 1/2 minute.
Motor then runs at 82% for approximately 7-1/2 miĆ
nutes.
If demand has not been satisfied after 7-1/2 minutes,
motor runs at 100% until demand is satisfied.
Once demand is met, motor ramps down to off.
OFF
OFF
1/2 MIN
50% CFM
7-1/2 MIN
82% CFM
100% CFM
COOLING DEMAND
Ramping Option C
Motor runs at 82% for approximately 7-1/2 minutes.
If demand has not been satisfied after 7-1/2 minutes,
the motor runs at 100% until demand is satisfied.
Once demand is met, motor ramps down to off.
OFF
OFF
82%CFM
100% CFM
COOLING DEMAND
7-1/2 MIN
Ramping Option D
Motor runs at 100% until demand is satisfied.
Once demand is met, motor ramps down to off.
