NuTone 331H - User Manual

WARNING
READ AND SAVE THESE INSTRUCTIONS
MODELS 331H & 332H
EXTERIOR MOUNTED
BLOWER
FOR USE WITH RANGEMASTER HOODS AND ECLIPSE DOWNDRAFT VENTILATORS
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS, OBSERVE THE FOLLOW-
ING:
1. Use this unit only in the manner intended by the
manufacturer. If you have questions, contact the manu-
facturer at the address or telephone number listed in
the warranty.
2. Before servicing or cleaning 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.
3. Installation work and electrical wiring must be done by
a qualified person(s) in accordance with all applicable
codes and standards, including fire-rated construction
codes and standards.
4. Sufficient air is needed for proper combustion and
exhausting of gases through the flue (chimney) of fuel
burning equipment to prevent backdrafting. Follow the
heating equipment manufacturer's guideline and safety
standards such as those published by the National Fire
Protection Association (NFPA), and the American So-
ciety for Heating, Refrigeration and Air Conditioning
Engineers (ASHRAE), and the local code authorities.
5. When cutting or drilling into wall, or ceiling, do not
damage electrical wiring or other hidden utilities.
WARNING
CAUTION
1. For general ventilating use only. Do not use to exhaust
hazardous or explosive material and vapors.
2. To avoid motor bearing damage and noisy and/or
unbalanced impellers, keep drywall spray, construction
dust, etc. off power unit.
3. Please read specification label on product for further
information and requirements.
4. Electrical circuit, including speed control, (if used),
must be rated 6 AMPS minimum for Model 332H or 3
AMPS minimum for Model 331H.
Important-when using Model 332H with the Broan
Eclipse Downdraft Models 2830-A or 2836-A: Pur-
chase a #97011927 Speed Control Kit from your
Broan distributor to replace the speed control in
your downdraft.
PLAN THE INSTALLATION
1. Locate the blower so the length of the duct run and
number of elbows and transitions needed are kept to a
minimum.
Please note - when using blower with the Broan
Eclipse Downdraft: The downdraft has a 3¼" x 10"
discharge. Transitions are available to connect it to
the 10" round inlet on this exterior-mounted blower.
2. Where possible, blower should be centered between
wall studs or roof rafters.
ALL INSTALLATIONS
MODEL VOLTS AMPS CFM DUCT SIZE
331H 120 2.4 600 10 " DIA.
332H 120 5.7 900 10" DIA.
SPECIFICATIONS
INSTALLER: Leave This Manual With The Homeowner
HOMEOWNER: Use And Care Information On Page 3
PLAN THE INSTALLATION
3. Avoid pipes, wires, or other ductwork that may be
running through the wall.
4. Be sure that there is enough space for any transitions
that may be needed between the blower and the
connecting ductwork.
5. For best performance, locate transitions nearest to
ventilator (i.e. downdraft).
6. Ducted fans must always be vented to the outdoors.
7. To reduce risk of fire, use only metal ductwork.
8. This unit must be grounded.

Summary

Safety and Operating Guidelines

General Warnings

Crucial safety guidelines to prevent fire, electric shock, and injury.

Cautions for Use

Advisories for general ventilation and avoiding damage from dust or materials.

Product Specifications

Model Specifications

Technical details including voltage, amperage, CFM, and duct size for models 331H & 332H.

Installation Location Preparation

Roof Installation Location

Steps for selecting and marking the mounting area on a roof.

Wall Installation Location

Steps for selecting and marking the mounting area on a wall.

Blower Preparation Steps

Instructions for unpacking and preparing the blower assembly prior to installation.

Installation and Care

Roof Installation Procedure

Detailed steps for attaching the blower to a roof structure.

Wall Installation Procedure

Detailed steps for attaching the blower to a wall structure.

Cleaning Instructions

Procedures for safely cleaning the blower and its housing.

Motor Lubrication Information

Guidance on the motor's lubrication status and maintenance.

Service Parts and Warranty

Available Service Parts

List of replacement parts with corresponding part numbers for models 331H & 332H.

One Year Limited Warranty

Details of the limited warranty coverage, terms, and conditions.

NuTone 331H Specifications

General

Brand	NuTone
Model	331H
Category	Blower
Language	English