Air King EWF-180 User 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 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:

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

INJURY TO PERSON, OBSERVE THE FOLLOWING:

a) Use this unit only in the manner intended by the manufacturer.If you have

questions, contact the manufacturer.

b) 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.

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

INJURY TO PERSON, OBSERVE THE FOLLOWING:

a) Installation work and electrical wiring must be done by qualified

person(s) in accordance with all applicable codes and standards,
including fire-related construction.

b) 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.

c) When cutting or drilling into wall or ceiling, do not damage electrical

wiring and other hidden utilities.

CAUTION: FOR GENERAL VENTILATING USE ONLY. DO NOT USE TO

EXHAUST HAZARDOUS OR EXPLOSIVE MATERIALS AND VAPORS.

d) Ducted fans must always be vented to the outdoors.
e) This unit must be grounded.
f) To avoid motor bearing damage and noisy and/or unbalanced impellers,

keep drywall spray, construction dust, etc. off power unit.

g) Read all instructions before installing or using exhaust fan.

WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, DO NOT

USE THIS FAN WITH ANY SOLID-STATE SPEED CONTROL DEVICE.

a) If this unit is to be installed over a tub or shower, it must be

marked as appropriate for the application and be connected to a
GFCI (Ground Fault Circuit Interrupter) – protected branch circuit.

WARNING: DO NOT USE IN KITCHENS.

SAVE THESE INSTRUCTIONS

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INSTALLATION INSTRUCTIONS
CAUTION:

STARTING INSTALLATION.

MAKE SURE POWER IS SWITCHED OFF AT SERVICE PANEL BEFORE

SECTION 1

Preparing the Exhaust Fan

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

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).

14½"

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).

Figure 1

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

Outer
Housing

Inner
Housing

Figure 2

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.

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

Interior
Wall

Exterior
Wall

Hole

8¼"

Casing

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).

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).

Screw

Caulk

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).

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Interior
Wall

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Figure 7

SECTION 3

Wiring

CAUTION: MAKE SURE POWER IS SWITCHED OFF AT SERVICE PANEL BEFORE

STARTING INSTALLATION.

Wiring Compartment Cover

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).

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).

Hole

Inner
Housing

Electrical

Figure 8

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).

Knockout

Opening

Wiring Compartment

Electrical Opening

Figure 11

SECTION 4

Completing the Installation

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

Electrical

Knockout

Opening

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

Motor

Bracket Hole

Grill

Knob

Figure 12

3. Restore power and test your installation.

SECTION 5

Use and Care

CAUTION: MAKE SURE POWER IS SWITCHED OFF AT SERVICE PANEL BEFORE

STARTING INSTALLATION.

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, to reinstall grill.

2. Cleaning the Fan Assembly: Wipe all parts with a dry cloth or gently vacuum the fan.

NEVER IMMERSE ELECTRICAL PARTS IN WATER.

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).

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