Wiring diagrams, Single speed, single phase motor, Typical damper motor schematic – COOK SQI User Manual
Page 3: 2 speed, 1 winding, 3 phase motor, 2 speed, 2 winding, 3 phase, Sqi-d 70-90
3
Fan
Motor
Damper
Motor*
Second
Damper
Motor
Transformer**
Transformer**
L3
L2
L1
Wiring Diagrams
When ground is required, attach to ground A or B with no. 6 thread forming
screw. To reverse, interchange T-1 and T-4.
Single Speed, Single Phase Motor
When ground required, attach to ground A or B with No. 6 thread forming
screw. To reverse, interchange T-1 and T-4 leads.
2 Speed, 2 Winding, Single Phase Motor
Single Speed, Single Phase, Dual Voltage
When ground required, attach to ground A or B with No. 6 thread forming
screw. To reverse, interchange T-5 and J-10 leads.
Typical Damper Motor Schematic
For 3 phase, damper mo-
tor voltage should be the
same between L
1
and L
2
.
For single phase applica-
tion, disregard L
3
.
*Damper motors may be
available in 115, 230 and
460 volt models. The
damper motor nameplate
voltage should be veri-
fied prior to connection.
**A transformer may be
provided in some instal-
lations to correct the
damper motor voltage to
the specified voltage.
Ground A
Ground B
T-1
T-4
Low Speed
High Speed
L1
L2
Line
Ground B
J-10
T-5
Ground A
Link A
Link B
Low Voltage
Line
L 2
L 1
Ground A
Link A & B
L1
L 2
Line
Ground B
T-5
J-10
SQI-D
FAN*
WHITE
BLACK
FSC
FSC
Wiring Diagrams
To reverse, interchange any 2 line leads.
2 Speed, 1 Winding, 3 Phase Motor
To reverse, interchange any 2 line leads. Motors require magnetic control.
2 Speed, 2 Winding, 3 Phase
To reverse: High Speed-interchange leads T
11
and T
12
.
Low Speed-interchange leads T
1
and T
2
. Both Speeds-interchange any 2
line leads.
Motor
1
2
3
4
5
6
Together
High Speed
Line
L1
L2
L3
1
2
3
4
5
6
Open
Low Speed
Line
L1
L2
L3
Motor
*
Black (High)
Blue (Medium)
Red (Low)
Line
SQI-D 70-90
White
Line
NOTE: Insulate Unused Leads Separately
*
*
*See SQI Wiring Diagram for correct lead.
4 5 6
1
7
2
8
3
9
L1 L2 L3
4 5 6
7 8 9
1 2
3
L1 L2 L3
Low Voltage
208/230 Volts
High Voltage
460 Volts
3 Phase, 9 Lead Motor
Y-Connection
7
1
6
7 8 9
4 5 6
1 2
3
Low Voltage
208/230 Volts
High Voltage
460 Volts
8
2
4
9
3
5
L1
L3
L2
L1
L3
L2
3 Phase, 9 Lead Motor
Delta-Connection