COOK KSP User Manual

ASP/KSP

Centrifugal Filtered Supply Fans

INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

This publication contains the installation, opera­tion and maintenance instructions for standard
units of the ASP/KSP-Centrifugal Filtered Supply
Fans.

Carefully read this publication prior to any instal­lation or maintenance procedure.

Loren Cook catalog, ASP/ASP-T and KSP, provides
additional information describing the equipment, fan
performance, available accessories, and specification
data.

For additional safety information, refer to AMCA pub­lication 410-96, Safety Practices for Users and Install-
ers of Industrial and Commercial Fans.

All of the publications listed above can be obtained
from Loren Cook Company by phoning 417/869-6474,
extension 166; by FAX at 417/832-9431; or by e-mail at
[e-mail].

For information on special equipment, contact Loren
Cook Company Customer Service Department at 417/
869-6474.

Receiving and Inspection

Carefully inspect the fan and accessories for any
damage and shortage immediately upon receipt of the
fan.

• Turn the wheel by hand to ensure it turns freely and
does not bind.

• Inspect dampers (if supplied) for free operation of
all moving parts.

• Record on the Delivery Receipt any visible sign of

damage.

Installation

Motor Installation

To prevent damage to the fan during shipping, motors 5 HP
and larger, and extremely heavy motors (cast iron or severe
duty) are shipped loose and must be field mounted by bolting
the motor on the motor mounting plate in the existing mounting
slots.

KSP Assembly

NFPA 96 installation guidelines for KSP fans are shown in
figure 1 and 2 on page 2.

a. Remove the top cap (item 3) from the fan.
b. Remove the intake hood (item 2) and the filter(s) (item 1)

from the inside of the fan.
c. Replace the topcap.
d. Slide the intake hood over the flange on the fan and

secure with the nine screws provided.
e. Remove the two thumb screws and the filter retainer.
f. Slide the filter(s) down between the angles inside the

intake hood and the flange on the front of the hood.
g. Replace the filter retainer and secure with the two thumb

screws.
h. Caulk the top of the intake hood where the hood meets

the fan. Use an appropriate caulk for exterior use.

Handling

Lift the fan by the base or lifting eyes. Never lift by the

shaft, motor, or housing.

Storage

If the fan is stored for any length of time prior to
installation, store the fan in its original crate and protect
it from dust, debris and the weather.

WARNING

This unit has rotating parts. Safety precautions
should be exercised at all times during installation,
operation, and maintenance.
ALWAYS disconnect power prior to working on fan.

ASP

KSP

1 foot

1/4 inch

10' MIN.

2

nt

1

2 4

CaulkCaulk

5

View 2 - KSP Field Assembly

1

3

View 1 - KSP Shipping Arrangeme

10' MIN.

Figure 1 - NFPA 96 Standard Installation

VCR with Hinged Base

Vented Extension

KSP with

Intake

Extension

View 2 - KSP Field Assembly

Leave enough slack in the wiring to allow for motor
movement when adjusting belt tension. Some fractional
motors have to be removed in order to make the connec­tion with the terminal box at the end of the motor. To
remove motor, remove bolts securing motor base to power
assembly. Do not remove motor mounting bolts.

Personal Safety

Disconnect switches are recommended. Place the
disconnect switch near the fan in order that the
power can be swiftly cut off in case of an
emergency, and in order that maintenance
personnel are provided complete control of the
power source.

Follow the wiring diagram in the disconnect switch
and the wiring diagram provided with the motor. Cor­rectly label the circuit on the main power box and
always identify a closed switch to promote safety (i.e.,
red tape over a closed switch).

Do not allow the fan to run in the wrong direction.
This will overheat the motor and cause serious dam­age. For 3-phase motors, if the fan is running in the
wrong direction, check the control switch. It is possi­ble to interchange two leads at this location so that the
fan is operating in the correct direction.

Curb Cap

Curb

Figure 2 - NFPA 96 Alternate Installation

Wiring Installation

All wiring should be in accordance with local ordinances
and the National Electrical Code, NFPA 70. Ensure the
power supply (voltage, frequency, and current carrying
capacity of wires) is in accordance with the motor name­plate.

Lock off all power sources before unit is wired to
power source.

Figure 3

Belt and Pulley Installation

Belt tension is determined by the sound the belts make
when the fan is first started. Belts will produce a loud
squeal which dissipates after the fan is operating at full
capacity. If the belt tension is too tight or too loose, lost effi­ciency and possible damage can occur.

2

Wiring Diagrams

Single Speed, Single Phase Motor

Ground A

L

T-1
T-4

Ground B

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

T-1

T-4

Ground B

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 A

L

T-5

J-10

Link A
Link B

Low Voltage

Ground B

Line

1

T-5

J-10

L

2

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

Transformer**

1

Line
L

2

High Speed

Low Speed

Ground B

Transformer**

L

1

L

2

Ground A

L3
L2
L1

Line

Link A & B

L

1

Line

L

2

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.

Wiring Diagrams

3 Phase, 9 Lead Motor
Y-Connection

Low Voltage

208/230 Volts

4

5

6

3

1

9

728

L2L

L

3

1

To reverse, interchange any 2 line leads.

High Voltage

460 Volts

456

789

3

12

L2L

L

1

2 Speed, 1 Winding, 3 Phase Motor

High Speed

1

Together

2

Motor

3

L

4

1

L

5

2

6

L

3

To reverse, interchange any 2 line leads. Motors require magnetic control.

2 Speed, 2 Winding, 3 Phase

To reverse: High Speed-interchange leads T
Low Speed-interchange leads T1 and T2. Both Speeds-interchange any 2
line leads.

3 Phase, 9 Lead Motor
Delta-Connection

Low Voltage

208/230 Volts

8

7

4

6

2

1

L

L

1

2

3

Motor

Line

and T12.

11

9
5

3

L

3

Low Speed

1
2
3

4
5

6

High Voltage

460 Volts

789
456

3

12

L1L

L

3

2

L

1

L

2

Line

L

3

Open

Damper

Motor*

Second

Damper

Motor

KSPD 94 - 97 and 103-106 Series

White Line

Black (High)

Red (Low)

NOTE: Insulate Unused Lead

KSPD 122 - 127 Series

White Line

Black (High)

Blue (Medium)

Red (Low)

NOTE: Insulate Unused Leads Separately

KSPD 98 and 99 Series

White Line

*

Black

Line

Line

*

FSC

WHITE

KSPD

FAN*

*
*

*

Line

*See KSPD Wiring Diagram for correct lead.

3

FSC

BLACK