NuTone QT150 User Manual

INSTALLATION INSTRUCTIONS
READ & SAVE THESE INSTRUCTIONS!
•
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 3
1
⁄ 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.
QuieTTest
®
Twin Blower Ventilator
MODEL: QT150 (For Ceiling Installation)
FIGURE 1
FIGURE 2
POWER
UNIT
ROOF CAP
VERTICAL
DISCHARGE
3
1
⁄ 4 " x 10"
DUCT
KNOCKOUTS
FAN
HOUSING
HORIZONTAL
DISCHARGE
WALL CAP
POWER
CONNECTOR
SLOTS
WING NUT,
HANGER ROD
HANGER
ROD
FIGURE 3
VERTICAL DISCHARGE
3
1
⁄ 4 " x 10" DAMPER SECTION
3
1
⁄ 4 " x 10"
DAMPER
SECTION
HORIZONTAL
DISCHARGE

NuTone QT150 Specifications

General

Airflow	150 CFM
Noise Level	4.0 Sones
Duct Size	4 inches
Dimensions	10.5 x 10.5 x 7.5 inches
Voltage	120 V
Housing Material	Galvanized Steel
Mounting	Ceiling
Type	Ceiling

Summary

NuTone QT150 Ventilator Overview and Safety

Product Features and Specifications

Lists key features like solid state control compatibility, duct size, and materials.

General Safety Warnings

Essential safety precautions for using the unit, including power disconnection before servicing.

Installation Safety Instructions

Crucial safety guidelines for installation, emphasizing qualified personnel and codes.

Application Caution

Specifies general ventilating use only and warns against hazardous materials.

New Construction Installation Guide

New Construction Preparation

Steps for preparing the unit and workspace for new construction installation.

Mounting the Housing

Instructions for securely positioning and attaching the ventilator housing between ceiling joists.

Ventilator Wiring

Guide for connecting the unit's electrical wiring according to codes and diagrams.

Power Unit Installation

Procedure for installing the power unit/blower assembly using hanger rods and connectors.

Grille, Maintenance, and Existing Installation

Grille Installation

Steps for attaching the grille assembly to the housing using mounting springs.

Maintenance and Cleaning

Guidance on safe cleaning practices, recommending mild soap and water.

Existing Construction Installation

Instructions for installing the ventilator in existing buildings, requiring attic/crawl space access.

Installation from Accessible Area Above

Method for installing the unit from an attic or crawl space using headers and ceiling cutout.

Warranty and Customer Support

One Year Limited Warranty

Details the product's limited warranty coverage against defects in materials or workmanship.

Warranty Service Procedures

Explains how to qualify for and obtain warranty service, including required information.

Assistance and Service Contact

Provides contact information for customer support and service center locations.