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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

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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