COOK Propeller Wall Fans - Manual (Page 3)

3
Figure 4 Note: Allow for ceiling thickness.
Suggested Installation: Unit with filter.
3 Phase, 9 Lead Motor Y-Connection
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
To reverse, interchange any 2 line leads.
3 Phase, 9 Lead Motor Delta-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
To reverse, interchange any 2 line leads.
2 Speed, 1 Winding, 3 Phase Motor
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
To reverse, interchange any 2 line leads. Motors
require magnetic control.
2 Speed, 2 Winding, 3 Phase
To reverse: High Speed-interchange leads T11 and
T12.
Low Speed-interchange leads T1 and T2. Both
Speeds-interchange any 2 line leads.
Single Speed, Single Phase Motor
T-1
T-4
Ground B
L 2
L1
Ground A
Line
When ground is required, attach to ground A or B with
no. 6 thread forming screw. To reverse, interchange
T-1 and T-4.
2 Speed, 2 Winding, Single Phase Motor
Ground A
Ground B
T-1
T-4
Low Speed
High Speed
L1
L2
Line
When ground required, attach to ground A or B with
No. 6 thread forming screw. To reverse, interchange
T-1 and T-4 leads.
Single Speed, Single Phase, Dual Voltage
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
L2
Line
Ground B
T-5
J-10
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
Fan
Motor
Damper
Motor*
Second
Damper
Motor
Transformer** Transformer**
L3
L2
L1
For 3 phase, damper motor voltage should be
the same between L1 and L2. For single phase
application, disregard L3. *Damper motors may be
available in 115, 230 and 460 volt models. The damper
motor nameplate voltage should be verified prior to
connection. **A transformer may be provided in some
installations to correct the damper motor voltage to the
specified voltage.