Air King FRAS50, FRAS60, FRAS70 Operating Manual

IMPORTANT INSTRUCTIONS -

OPERATING MANUAL

Models:

FRAS50, FRAS60, FRAS70

Fire Rated 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:

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. Acceptable for use over a bathtub or shower when installed
in a GFCI protected branch circuit.

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

WARNING: DO NOT USE IN KITCHENS

CAUTION: FOR GENERAL VENTILATING USE ONLY. DO

NOT USE TO EXHAUST HAZARDOUS OR EXPLOSIVE MATERIALS
AND VAPORS.

SAVE THESE INSTRUCTIONS

210572300 Rev. A 5-06

www.airkinglimited.com

1 of 12

INSTALLATION INSTRUCTIONS

CAUTION: MAKE SURE POWER IS SWITCHED OFF AT

SERVICE PANEL BEFORE STARTING INSTALLATION.

SECTION 1

Preparing the Exhaust Fan

1. Unpack fan from the carton and confirm that all pieces are
present. In addition to the exhaust fan you should have:

1 - Grill
4 - Mounting Rails
1 - Hardware bag containing:

4 - #8 screws

4 - Flat washers
1 - Ceiling damper
1 - Ceiling damper frame
1 - Instruction/Safety Sheet

2. Remove the fan’s venturi assembly, which is secured in place
with one screw through the venturi (Figure 1). This is a captive
screw and will stay installed in the venturi. Keep the venturi
assembly and the grill in the carton until needed so they do
not get damaged or lost.

Housing

Joist

Figure 3

Hanger Bar

SECTION 3

Existing Construction

1. Determine the housing position between the joist. Measure
and draw out a 7-7/8" x 7-15/16" rectangle onto the ceiling
material (Figure 4). Cut opening, being careful not to cut or
damage any electrical or other hidden utilities. Install the
side rails on the housing and position the housing in the
previously cut hole so that it is flush with the finished ceiling.
Secure the ends of the rails to the joists (Figure 3).

Screw

Figure 1

3. Choose the location for your fan. To ensure the best air and
sound performance, it is recommended that the length of
ducting and the number of elbows be kept to a minimum, and
that insulated hard ducting be used. Larger duct sizes will
reduce noise and airflow restrictions. This fan will require at
least 8" of clearance in the ceiling or wall, and will mount
through drywall up to 3/4" thick. The fan mounts between 16"
or 24" on center joists using the 4
provided mounting rails.

4. Select the most convenient
electrical knockout and remove
using a straight-blade screw driver
(Figure 2).

SECTION 2

New Construction

Figure 2

7-15/16"

7-7/8"

Joist

Figure 4

SECTION 4

Ducting

CAUTION: ALL DUCTING MUST COMPLY WITH LOCAL

AND NATIONAL BUILDING CODES.

1. Connect the ducting to the fan’s duct collar (Figure 5). Secure
in place using tape or screw clamp. Always duct the fan to
the outside through a wall or roof cap.

Ducting

Duct
Collar

1. Install the side rails on the housing and position the housing
next to the joist. Line up housing so that it will be flush with
the finished ceiling. Secure the ends of the rails with screws
or nails (not included) to the joists and slide the housing into
the final position (Figure 3).

210572300 Rev. A 5-06 2 of 12

www.airkinglimited.com

Figure 5