Page 49
TABLE 17
Cooling Mode Blower Speed Ramping
Ramping Switch 9 Switch 10
A (Factory) O O
B O On
C On O
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
minutes.
• If demand has not been satised after 7-1/2 min-
utes, motor runs at 100% until demand is satised.
• Once demand is met, motor runs at 50% for 30
seconds then ramps down to stop.
OFF
1/2 MIN
50% CFM
COMPRESSOR DEMAND
7 1/2 MIN
82% CFM
100%
CFM
1/2 MIN
50% CFM
Ramping Option B
• Motor runs at 82% for approximately 7-1/2 minutes.
If demand has not been satised after 7-1/2 min-
utes, motor runs at 100% until demand is satised.
• Once demand is met, motor ramps down to stop.
OFF
OFF
82%CFM
100% CFM
COMPRESSOR DEMAND
7 1/2 MIN
Ramping Option C
• Motor runs at 100% until demand is satised.
• Once demand is met, motor runs at 100% for 45
seconds then ramps down to stop.
OFF
100% CFM
100% CFM
45 SEC.
COMPRESSOR
DEMAND
Ramping Option D
• Motor runs at 100% until demand is satised.
• Once demand is met, motor ramps down to stop.
OFFOFF
100% CFM
COMPRESSOR
DEMAND
Switches 11, 12 and 13 -- Heating Mode Blower Speed
--The switches are factory set to the OFF position which
provides factory default heat speed. Refer to TABLE 18
for switches 11, 12 and 13 that provided the correspond-
ing increases or decrease to both high and low heat de-
mand. See TABLE 26 on page 58 for allowable heating
speeds.
TABLE 18
Heating Mode Blower Speeds
Heat Speed Switch 11 Switch 12 Switch 13
Increase 24% On On On
Increase 18% On On O
Increase 12% On O On
Increae 6% On O O
Factory
Default
O O O
Decrease 6% O O On
Decrease
12%
O On O
Decrease
18%
O On On
Switches 14 and 15 -- Continuous Blower Speed --
TABLE 19 provides continuous blower speed adjustments
that will result from dierent switch settings.
TABLE 19
Continuous Blower Speed
Coninuous Blower Speed Switch 14 Switch 15
28% of High Cool Speed O On
38% of High Cool Speed
(Factory Setting)
O O
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