Manual 2100-769A
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MIS-2839
FIGURE 26 – Control Connector Motor Half
* Suggested mating connector
Housing
–
AMP 350809-1
Contact
–
AMP 350537-1
** WARNING: Applying 240VAC line input with
PIN 1 to PIN 2 jumper in place will permanently
damage unit!
Power Connector
Motor Half
MODE of
OPERATION
OFF
Continuous
Blower
(Ventilation
Mode)
Part Load
Cooling
Full Load
Cooling
Part Load
Heat Pump
Full
Load Heat
Pump
Heat Pump Full Load
w/ 1st Bank of Elec.
Heat
Emergency
Heat Mode
Thermostat
24 VAC
Inuput Signals
—
"G"
"G", "Y1"
"G",
"Y1","Y2"
"G", "B/W1",
"Y1"
"G", "B/W1",
"Y1", "Y2"
"G", "B/W1","Y1", "Y2",
"W2"
"G",
"W2", "W3"
Pin #1
24 VAC "C" (Common) Signal, Always Energized
Pin #2
X
Pin #3
24 VAC "C" (Common) Signal, Always Energized
Pin #4
Not Used
Pin #5
Not Used
Pin #6
X
X
X
X
X
Pin #7
Not Used
Pin #8
Not Used
Pin #9
X
X
X
Pin #10*
X
X
Pin #11
Not Used
Pin #12
24 VAC Hot "R" Signal, Always Energized
Pin #13
X
X
Pin #14
X
X
X
Pin #15
X
X
X
X
X
X
X
Pin #16
Not Used
POWER CONNECTOR
PWB HEADER
AMP 1-350945-0
PIN
Description
1
Jumper Pin 1 to Pin 2 for 120VAC
Line Input Only **
2
3
Chassis Ground
4
AC Line
5
AC Line
Troubleshooting ECM
TM
Indoor Blower Motors
* By default PIN 10 is wired to the "R" terminal of defrost board. If a 10% reduction of airflow is desired,
disconnect PIN 10 from the "R" terminal of defrost board and use electrical tape to cover end of connector to
prevent short-circuiting. The 10% reduction will only be adjusted when unit is running in cooling mode. In heating
mode, the blower will remain at rated airflow.