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-10% to better suit the application. Table 8 below provides
blower speed adjustments that will result from different
switch settings. Refer to blower data tables for correspond
ing cfm values.
TABLE 8
Cooling Blower Speed Adjustment
Adjustment
Switch 7
Switch 8
+10% (approx.)
On
Off
Factory Default
Off
Off
-10% (approx.)
Off
On
Switches 9 and 10 -- Cooling Mode Blower Speed
Ramping --
Blower speed ramping may be used to en
hance dehumidification performance. The switches are
factory set at option A which has the greatest effect on de-
humidification performance. Table 9 provides the cooling
mode blower speed ramping options that will result from
different switch settings. The cooling mode blower speed
ramping options are detailed below.
NOTE -
In heat pump mode blower operation defaults to
option c.
TABLE 9
Cooling Mode Blower Speed Ramping
Ramping Option
Switch 9
Switch 10
A (Factory)
Off
Off
B
Off
On
C
On
Off
D
On
On
Ramping Option A (Factory Selection)
Motor runs at 50% for 30 seconds.
Motor then runs at 82% for approximately 7-1/2 minu
tes.
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 30 sec
onds then ramps down to stop.
OFF
OFF
1/2 MIN
50% CFM
COMPRESSOR DEMAND
7 1/2 MIN
82% CFM
100%
CFM
1/2 MIN
50% CFM
Ramping Option B
S
Motor runs at 82% for approximately 7-1/2 minutes. If
demand has not been satisfied after 7-1/2 minutes,
motor runs at 100% until demand is satisfied.
S
Once demand is met, motor ramps down to stop.
OFF
OFF
82%CFM
100% CFM
COMPRESSOR DEMAND
7 1/2 MIN
Ramping Option C
S
Motor runs at 100% until demand is satisfied.
S
Once demand is met, motor runs at 100% for 45 sec
onds then ramps down to stop.
OFF
OFF
100% CFM
100% CFM
45 SEC.
COMPRESSOR
DEMAND
Ramping Option D
S
Motor runs at 100% until demand is satisfied.
S
Once demand is met, motor ramps down to stop.
OFF
OFF
100% CFM
COMPRESSOR
DEMAND
Switches 11, 12 and 13 -- Heating Mode Blower Speed --
The switches are factory set to the OFF position which pro
vides factory default heat speed. Refer to table 10 for
switches 11, 12 and 13 that provided the corresponding in
creases or decrease to both high and low heat demand.
TABLE 10
Heating Mode Blower Speeds
Heat Speed
Switch
11
Switch
12
Switch
13
Increase 24%
On
On
On
Increase 18%
On
On
Off
Increase 12%
On
Off
On
Increase 6%
On
Off
Off
Factory Default
Off
Off
Off
Decrease 6%
Off
Off
On
Decrease 12%
Off
On
Off
Decrease18%
Off
On
On
Switches 14 and 15 -- Continuous Blower Speed --
Table 11 provides continuous blower speed adjustments
that will result from different switch settings.
TABLE 11
Continuous Blower Speed
Continuous
Blower Speed
Switch 14
Switch 15
28% of High Cool Speed
Off
On
38% of High Cool Speed
(Factory)
Off
Off
70% of High Cool Speed
On
Off
100% of High Cool Speed
On
On
