Page 54
NOTE - The o portion of the selected ramp prole also
applies during heat pump operation in dual fuel applica-
tions.
TABLE 14
Cooling Mode Blower Speed Ramping
Ramping Switch 9 Switch 10
A (Factory)
B On
C On
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.
• -
• 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.
-
• Once demand is met, motor ramps down to stop.
OFF
OFF
82%CFM
100% CFM
COMPRESSOR DEMAND
7 1/2 MIN
Ramping Option C
•
• 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
•
• 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 15
for switches 11, 12 and 13 that provided the correspond-
ing increases or decrease to both high and low heat de-
mand. See TABLE 23 on page 72 for allowable heating
speeds.
TABLE 15
Heating Mode Blower Speeds
Heat Speed Switch 11 Switch 12 Switch 13
Increase 24% On On On
Increase 18% On On
Increase 12% On On
Increae 6% On
Factory
Default
Decrease 6% On
Decrease
12%
On
Decrease
18%
On On
Switches 14 and 15 -- Continuous Blower Speed --
TABLE 16 provides continuous blower speed adjustments
TABLE 16
Continuous Blower Speed
Coninuous Blower Speed Switch 14 Switch 15
28% of High Cool Speed On
38% of High Cool Speed
(Factory Setting)
Switch 16 - Not Used
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