Fantech 1WMC30E2 User Manual

Installation and Operational Manual

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1WHC • 1WMS Series

Wall Mount Cabinet Exhaust and Supply Fans

Item #: 481844

Rev Date: 080813

United States

10048 Industrial Blvd., Lenexa, KS, 66215
Tel.: [phone] • Fax: [phone]

Canada

50 Kanalflakt Way, Bouctouche, NB, E4S 3M5
Tel.: [phone] • Fax: [phone]

Fantech, Inc. and Systemair
Mfg. certify that the ventila­tors shown herein are licensed
to bear the AMCA Seal. The
ratings shown are based
on tests and procedures
performed in accordance with
AMCA Publication 211 and
AMCA Publication 311 and
comply with the requirements
of the AMCA Certied Ratings
Program.

2

Note Warning /

Information Technical

Important

note

Do not depend on any switch as the sole means of disconnecting power
when installing or servicing the fan. If the power disconnect is out-of­sight, lock it in the open position and tag to prevent application of power.
Failure to do so may result in fatal electrical shock.

1. Follow all local electrical and safety codes in the United States and
Canada, as well as the National Electrical Code (NEC) and the
Occupational Safety and Health Act (OSHA) in the United States, and
the Canadian Electric Code (CEC) in Canada.

2. Make certain that the power source conforms to the requirements of
your equipment.

3. Motor must be properly grounded by wiring with a grounded metal
raceway system, using a separate ground wire connected to the bare
metal of the motor frame or other suitable means.

Motor will restart without warning after protector trips.

Practical tip

information

4. Protect the power cable from coming into contact with sharp objects.

5. Do not kink the power cable and never allow the cable to come in
contact with oil, grease, hot surfaces, or chemicals.

Do not use in explosive atmospheres.

In America to reduce the risk of injury to persons, OSHA complying guards
are required when fan is installed within 8 feet of floor, ground, or
working level.

In Canada to reduce the risk of injury to persons, CSA complying guards
are required when fan is installed below 2.5 meters (8.2 feet) above floor
or grade level.

7. Always disconnect power source before working on or near a motor
or its connected load. If the power disconnect point is out-of-sight,
lock it in the open position and tag to prevent unexpected application
of power.

Description

Wall cabinet exhaust and supply fans are high volume, belt-drive fans used for ventilation in commercial, industrial, and agricultural applications with
static pressures up to 0.25 wg.
Fans are completely assembled, ready for installation. Units feature a galvanized venturi and housing, high efficiency propeller, rubber isolated, press­fit pillow block ball bearings , and totally enclosed, air over, ball bearing motors. All fans are UL Listed, Subject 705, and CSA approved . Guards
comply with United States OSHA Federal 1/2” opening requirement. Fan drives feature a variable pitch motor pulley to reduce fan speed by approxi­mately 20% to provide proper air volume for specific applications.

1WMC54KY is UL Listed Only and features a polyester powder coated venturi and cast iron pillow block bearings. Models 1WMC36G7
and 1WMC48H7 are not UL listed or CSA certified.

Unpacking and inspection

1. When receiving fan, inspect carefully for any damage that may have occurred during transit. Check for loose, missing, or damaged parts.

2. Before installing, rotate the propeller to be sure there are no obstructions which would interfere with proper operation. Adjust as required.

Do not insert fingers or foreign objects into fan.

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Dimensions

3

D

A

D

C

B

Figure 1: Dimensions

Table 1: Dimensional data Exhaust Fans

Model Fan size A B C Shipping Weight

1WMC24 24 28

1WMC30 30 34

1WMC36 36 40

1WMC42 42 46

1WMC48 48 54

1WMC54 54 60

/

4

1

/

4

1

/

4

1

/

4

1

/

4

1

/

4

28 1/

34

40 1/

46 1/

54 1/

60 1/

4

1

/

4

4

4

4

4

24 1/

25 1/

26 1/

28 1/

28 1/

47 3/

4

4

4

4

4

4

1

Dimensional information is in inches.

(Lbs)

123

176

196

242

288

635

Table 2: Supply Fans

Model Fan size A B C Shipping Weight

(Lbs)

1WMS24 24 28

1WMS36 36 40

1WMS48 48 54

1

/

4

1

/

4

1

/

4

28

40 1/

54 1/

1

/

4

4

4

30 143

32 1/

33 3/

4

4

208

311

Dimensional information is in inches.

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4

Installation

Drive Assembly

1. Place the motor base so that the anges are facing UP.

On motors with side conduit boxes. Interference may occur

with the side plates. In such instances, turn the base over
(anges down).

2. Secure the motor base to the frame tubes using the bolts provided.

Do not tighten the nuts at this time.

3. Mount the pulleys (motor and fan) on their respective shafts. A key is
included in the hardware package for the fan pulley. In all instances, the
larger diameter pulley mounts on the fan shaft. For some horsepower/
drive combinations, a bushed pulley is provided. The motor pulley
should be as close to the motor face as possible.

4. Slip the belt(s) into the fan pulley grooves.

5. Place the motor on the motor base so that the belt(s), hanging freely

Installation

1. Fans should be installed in a framed rigid
wall opening located where there will be no
obstruction to the ow of air into or out of
the fan.

NOT recommended for portable or
mobile installations or suspension
mounting with wire or chain.

2. Once a location has been determined; an
opening should be made in the wall and
framed to provide 1/4 to 1/2” total clearance
around the fan housing, (Refer to “Dimen­sion” table).

3. Framing must be able to support the weight
of the fan assembly, (Refer to “Dimension”
table for weight). Reinforce wall, depending
on the construction of the wall.

4. Position fan assembly in the framed open­ing. It is recommended that, for maximum
weather protection, the fan housing extend
beyond the exterior of the building as little as
possible. Supply fans require a weather hood
to reduce the risk of moisture entering the
building.

5. Attach (4) mounting angles to the fan hous­ing and wall framing, (Refer to Figure 2).

a. Use pre-punched holes in mounting angles

as a template for drilling holes in fan
housing.

b. Bolt angles to housing using bolts, (5/16”

recommended, not supplied with unit). Ev­ery hole must be used. Do not skip holes.

c. Mounting angles must be securely

fastened to wall framing using hardware,
(not furnished) appropriate for the wall
construction.

Fan housing must be square in the
wall opening. The housing should be
level or tilted a maximum of 5° down
to the exhaust side.

6. Any gap between the fan housing and the
wall opening should be sealed from the
outside of the building.

7. Make certain that power source conforms to
the requirements of the fan.

8. Access the fan motor by removing the intake
guard.

The guard may be pivoted up, (or

down) by removing all but the (2)
top, (or bottom) corner fasteners.
Corner fasteners can act as hinges
to pivot guard and secure it out of
way. DO NOT overtighten fasteners
to avoid stripping the threads.

All electrical connections should be

made by a qualied electrician.

from the fan pulley, slip into the motor pulley grooves.

6. Position the motor on the base with the end of the motor shaft ap­proximately even with the outer edge of the frame tubing. Align the
motor holes with the base holes and, using the bolts provided in the
hardware package, securely mount the motor. As the motor is drawn
down into position, tension will also be applied to the belt(s).

When assembling the motor and drive, the pulleys must be

aligned to keep the belt(s) straight. This is accomplished by
ensuring that the motor and fan pulley grooves are directly in
line with one another.

7. Adjust the motor base height as required to assure proper belt ten­sion.

Proper tension is approximately 1/4” to 1/2” movement of the

belt when pressed at midspan under normal thumb pressure.
Do not overtighten the belt(s). However, new belts should be
tighter than used belts. On multiple belt installations, belts
should be matched and replaced only in sets.

9. Connect power to the motor using an
approved wiring method (motor terminal
connection data is provided on the motor
nameplate and on the motor terminal box
cover plate). Use adequate size wire for all
branch and feeder runs.

The fan motor must be securely and

adequately grounded to a suitable
electrical ground such as a
grounded water pipe or ground wire
system!

Motor cable should be routed

through fan housing using any one of
the knock-out positions provided.
Use grommet provided to protect
the motor cable from the knock-out
hole edges.

10. Before activating fan, inspect to be sure
that there are no obstructions or debris that
would interfere with propeller or the shutter.

11. Reposition intake guard in place and rein­stall all fasteners.

12. Unit is ready for operation.

Mounting Angles

Wall

Figure 2 ­Mounting Angles

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