Air King EWF-180 Operating Manual

IMPORTANT INSTRUCTIONS -

OPERATING MANUAL

Model: EWF-180

Through the Wall Exhaust Fan

READ AND SAVE THESE INSTRUCTIONS

READ CAREFULLY BEFORE ATTEMPTING TO ASSEMBLE, INSTALL, OPERATE OR MAINTAIN THE PRODUCT DESCRIBED. PROTECT

1. Read all instructions before installing or using exhaust fan.

2. Use this unit only in the manner intended by the manufacturer.
If you have questions, contact the manufacturer.

3. Before servicing or cleaning the unit, switch power off at
service panel and lock the service disconnecting means to
prevent power from being switched on accidentally. When
the service disconnecting means cannot be locked, securely
fasten a prominent warning device, such as a tag, to the
service panel.

4. Installation work and electrical wiring must be done by
qualified person(s) in accordance with all applicable codes
and standards, including fire-related construction.

5. Sufficient air is needed for proper combustion and exhausting
of gases through the flue (chimney) of fuel burning equipment
to prevent back drafting. Follow the heating equipment
manufacturer’s guideline and safety standards such as those
published by the National Fire Protection Association (NFPA)
and the American Society for Heating, Refrigeration, and Air
Conditioning Engineers (ASHRAE), and the local code authorities.

YOURSELF AND OTHERS BY OBSERVING ALL SAFETY INFORMATION. FAILURE TO COMPLY WITH

INSTRUCTIONS COULD RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE!

RETAIN INSTRUCTIONS FOR FUTURE REFERENCE.

GENERAL SAFETY INFORMATION

When using electrical appliances, basic precautions

should always be followed to reduce the risk of fire,

electric shock and injury to person, including the following:

CAUTION: FOR GENERAL VENTILATING USE ONLY. DO

NOT USE TO EXHAUST HAZARDOUS OR EXPLOSIVE MATERIALS
AND VAPORS.

6. When cutting or drilling into wall or ceiling, do not damage
electrical wiring and other hidden utilities.

7. Ducted fans must always be vented to the outdoors.

8. This unit must be grounded.

9. To avoid motor bearing damage and noisy and/or unbalanced
impellers, keep drywall spray, construction dust, etc. off
power unit.

WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK,

DO NOT USE THIS FAN WITH ANY SOLID-STATE SPEED CONTROL
DEVICE.

10. NEVER place a switch where it can be reached from a tub or
shower.

WARNING: DO NOT USE IN KITCHENS

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INSTALLATION INSTRUCTIONS
CAUTION:

SERVICE PANEL BEFORE STARTING INSTALLATION.

MAKE SURE POWER IS SWITCHED OFF AT

SECTION 1

Preparing the Exhaust Fan

3. Once the installation location has been confirmed, cut a 8­1/4" diameter hole in the interior wall where the fan is to be
located (Figure 3).

Interior
Wall

1. Unpack from carton and confirm that all pieces are present.
You should have:

1 - Grill
1 - Grill Knob
1 - Wiring Compartment and screws
1 - Motor
1 - Housing
1 - Instruction/Safety Sheet

NOTE: This fan is designed to mount between exterior walls
4-1/2" to 9-1/2" in thickness.

2. Remove the motor bracket assembly from the fan housing
by loosening the two screws which secure the bracket in
place (Figure 1).

Screws

Figure 1

3. Slide the inner housing out from the outer housing and set
aside in a safe place (Figure 2).

Exterior
Wall

Figure 3

4. Drill a small hole through to the outside in the center of the
8-1/4" diameter hole, so you can properly locate the exterior
housing (Figure 3).

5. On the siding of the outside wall, layout a 14-1/2" x 14-1/2"
square using the small hole drilled in Step 4 as the center
point and cut out the square hole (Figure 4).

14-1/2"

Hole

Exterior
Wall

Interior
Wall

Nail

Figure 4

CAUTION: ONLY CUT THE EXTERIOR WALL SIDING. DO

NOT CUT INTO THE SHEATHING (PLYWOOD) UNDERNEATH.

6. Once the siding is cut, nail down all the loose ends of the
siding (Figure 4).

7. In the center of the 14-1/2" square cut in step 5, mark and cut
a 8-1/4" diameter hole through the wall sheathing (Figure 5).

Outer

Housing

Inner
Housing

Figure 2

8-1/4"

SECTION 2

Mounting the Housing

1. From inside the house, choose the best location to mount the
housing on an exterior wall. Make sure to locate the housing
where there are no studs, electrical/mechanical utilities, or
any other obstructions.

2. Once you have selected the best location from inside the
house, transfer the location to the exterior of the house and
confirm that there are no obstructions in the location and
the fan has proper clearance to operate.

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Figure 5

8. Install 1" x 2" casing strips (not included) for support on the
edges of the 14-1/2" square hole. Secure casing strips to plywood
sheathing with screws or nails (not included) and seal where
the strips meet the plywood with caulk (Figure 5).

CAUTION: IF SHEATHING IS NOT PLYWOOD, YOU WILL

HAVE TO ADD ADDITIONAL SUPPORT FOR THE INSTALLATION.

9. If the wall is less than 8" thick, remove one or more of the
electrical compartment clearance knockouts located on the
housing (Figure 6).

Casing
Strips

Knockouts

Figure 6

10. On the interior flange of the housing, apply a generous amount
of caulking and install the housing through the hole and onto
the casing strips and secure in place using screws or nails
(not included) through the predrilled holes on the four corners
of the housing. Seal the flange where the housing meets the
wall with caulk (Figure 7).

NOTE: If you removed any of the electrical compartment clearance
knockouts on the outer housing, make sure the electrical opening
of the inner housing is aligned with them.

3. Pull the electrical wires through the electrical opening of the
interior housing. Remove one of the electrical knockouts of
the wiring compartment and run wires through the opening
making sure to leave enough wiring to make the connection
to the fan’s receptacle. Secure wires to wiring compartment
with an approved electrical connector (Figure 9).

Electrical
Opening

Knockouts

Screws

Caulk

Figure 7

SECTION 3

Wiring

CAUTION: MAKE SURE POWER IS SWITCHED OFF AT

SERVICE PANEL BEFORE STARTING INSTALLATION.

CAUTION: ALL ELECTRICAL CONNECTIONS MUST BE

MADE IN ACCORDANCE WITH LOCAL CODES, ORDINANCES,
OR NATIONAL ELECTRICAL CODE. IF YOU ARE UNFAMILIAR
WITH METHODS OF INSTALLING ELECTRICAL WIRING, SECURE
THE SERVICES OF A QUALIFIED ELECTRICIAN.

1. Run wiring from an approved wall switch carrying the
appropriate rating. One neutral (white), one ground (green
or bare copper), and one hot (black).

Figure 9

4. Connect the green or bare ground wire from the house to
the ground screw in the wire compartment. Connect the
white wire from the house to the white wire from the
receptacle. Connect the hot (black) wire from the wall switch
to the black wire from the receptacle (Figure 10). Use approved
methods for all connections.

Wiring Compartment

Figure 10

5. Insert the wire compartment into the electrical opening of the
interior housing and line up holes of wire compartment and
wire compartment cover with holes on the interior housing.
Secure in place using the two included 1/2" screws (Figure 11).

2. From inside the house, insert the inner housing into the outer
housing until it is tight against the wall. Line up three holes
at the end of the inner housing with three of the holes on the
outer housing and secure in place with the three included
3/8" screws (Figure 8).

Holes

Inner
Housing

Figure 11

Wiring Compartment
Cover

Wiring Compartment

Electrical Opening

Electrical

Figure 8

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Knockouts

Opening

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SECTION 4

Completing the Installation

SECTION 5

Use and Care

1. Reinstall the fan’s motor bracket by sliding in place and
tightening the screws. Rotate the blower wheel by hand to
ensure it spins freely. Now plug the fan motor into the
receptacle (Figure 1).

2. Install grill by positioning over the inner housing and aligning
the center hole on the grill with the hole on the motor bracket.
Screw one side of the included grill bolt into the hole on the
motor bracket and the other side into the grill knob and turn
to tighten until the grill is tightly fit against the wall. DO NOT
OVER TIGHTEN (Figure 12).

Grill

Bolt

Motor Bracket

Grill Knob

Hole

CAUTION: MAKE SURE POWER IS SWITCHED OFF AT

SERVICE PANEL BEFORE SERVICING THE UNIT.

1. Cleaning the Grill: Remove grill and use a mild detergent,
such as dishwashing liquid, and dry with a soft cloth. NEVER
USE ANY ABRASIVE PADS OR SCOURING POWDERS.
Completely dry grill before reinstalling. Refer to instructions
in Section 4

Completing the Installation

2. Cleaning the Fan Assembly: Wipe all parts with a dry cloth
or gently vacuum the fan. NEVER IMMERSE ELECTRICAL
PARTS IN WATER.

, to reinstall grill.

Figure 12

3. Restore power and test your installation.

Troubleshooting Guide

Trouble Probable Cause Suggested Remedy

1. Fan does not operate when the switch is on. 1a. A fuse may be blown or a circuit tripped. 1a. Replace fuse or reset circuit breaker.

1b. Connector plug from motor is not plugged in. 1b. Turn off power to unit. Remove Grill and plug motor into receptacle

1c. Wiring is not connected properly. 1c. Turn off power to unit. Check that all wires are connected.

1d. Motor has stopped operating. 1d. Replace motor.

2. Fan is operating, but air moves slower than normal. 2. Obstruction in the outer housing. 2. Check for any obstructions where the fan exhausts to the outside.

3. Fan is operating louder than normal. 3a. Motor is loose. 3a. Turn off power to unit. Remove grill and check that all screws are fully

3b. Grill is loose 3b. Tighten grill knob.

in housing. Restore power to unit.

tightened. Restore power to unit.

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