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Air Flow – Cooling Blower Speed
NOTE - Refer to wiring diagram located on the
unit
ance (table 2).
All air data measured external to unit with 1
inch non-pleated air filter in place.
All factory settings are medium speed.
All data given while air handler is operating
with a dry DX evaporator coil.
All downflow applications run on high speed
when utilizing electric heat.
Page 16 of 22
WARNING
BLOWER RELAY
Figure 18. Changing Blower Speed
Change Blower Speed
1.
2.
IMPORTANT:
3.
4.
a.
b.
NOTE:
6.
7.
5
BLOWER RELAY
HARNESS
BLUE (MED)
2
4-PIN
BLOWER CONNECTOR
Issue 2336
PLASTIC CAPS
RED (L0)
BLACK (HI)
YELLOW (COM)
507787G02 / 31-5000675-1
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