NuTone QT150 installation instructions QuieTTest Twin Blower Ventilator, For Best Results

INSTALLATION INSTRUCTIONS

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QuieTTest® Twin Blower Ventilator

MODEL: QT150 (For Ceiling Installation)

•Suitable for use with solid state speed controls.

•WARNING: To reduce the risk of shock, disconnect power before servicing.

•Not for use in kitchens.

•Uses standard 31⁄4" x 10" ducting.

•Plastic grille snaps in with torsion springs.

•Designed for ceiling installation.

•The ventilator consists of the housing, mounting brackets, junction box, power unit/blower assembly, damper section and grille assembly.

•Fan must not be installed in a ceiling thermally insulated to a value greater than R-40.

IMPORTANT SAFETY INSTRUCTIONS

WARNING: TO REDUCE THE RISK OF FIRE. ELECTRIC SHOCK, OR INJURY TO PERSONS, 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 unit, switch power off at service panel and lock service panel 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.

CAUTION:

For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.

INSTALLATION INSTRUCTIONS

WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, 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-rated construction.

B. Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel burning equipment to prevent back draft. 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.

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

E. If this unit is to be installed over a tub or shower, it must be marked as appropriate for the application.

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

FOR BEST RESULTS

When installing the ventilator in a new construction site, install the housing during the rough-in construction of the building. The power unit and grille should be installed after the finished ceiling is in place.

To install the ventilator in an existing building, an accessible area (attic or crawl space) is required from above the planned location.

POWER

POWER CONNECTOR UNIT

SLOTS

WING NUT,

HANGER ROD

HANGER

ROD

FIGURE 1

ROOF CAP

VERTICAL

DISCHARGE

31⁄4" x 10"

DUCT

WALL CAP

KNOCKOUTS

FAN

HOUSING

HORIZONTAL

DISCHARGE

FIGURE 2

VERTICAL DISCHARGE

31⁄4" x 10" DAMPER SECTION

31⁄4" x 10"

DAMPER SECTION

HORIZONTAL

DISCHARGE

FIGURE 3