Table 6 Troubleshooting Ecm Blower Motors; Figure 28 Control Connector Motor Half - Bard Q36A4DA Installation Instructions Manual

Mode of
Operation
Thermostat
24 VAC
Input
Signals
Pin #1
Pin #2
Pin #3
Pin #4
Pin #5
Pin #6
Pin #7
Pin #8
Pin #9
Pin #10
Pin #11
Pin #12
Pin #13
Pin #14
Pin #15
Pin #16
FIGURE 28
Control Connector Motor Half
9 10 11
1 2
1
Power Connector Motor Half
Manual 2100-752B
Page 34 of 49
Troubleshooting ECM
Part Load
Continuous
Cooling
Blower
OFF ("Y1-Y2"
(Ventilation
Jumper
Mode)
Removed)
— "G" "G", "Y1"
24 VAC "C" (Common) Signal, Always Energized
Not Used
24 VAC "C" (Common) Signal, Always Energized
Not Used
Not Used
X
Not Used
Not Used
X
Not Used
24 VAC Hot "R" Signal, Always Energized
X X
Not Used
12 13 14 15 16
3 4 5 6 7 8
MIS-2839
2 3 4 5
TABLE 6
Indoor Blower Motors
TM
Full Load Dehum.
Bank of Elec.
Cooling Mode
"G",
"D" "G", "B/W1"
"Y1","Y2"
X X
X X
X
X
PWB Header
PIN
1
2
3
4
5
* 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!
Heat 1st Heat 1st &
2nd Bank of
Heat Elec. Heat
"G", "B/W1",
"W2"
X X
X X
X X
X X
Power Connector
AMP 1-350945-0
Description
Jumper Pin 1 to Pin 2 for
120VAC Line Input Only **
Chassis Ground
AC Line
AC Line