CUSTOM HOOD
BLOWERS
SPECIFICATION SHEET
Powerful cooktop ventilation and functional lighting for use with custom hoods.
FEATURES
Model 320
Interior-mounted blower
Twin centrifugal blower - 420 cfm
•
Plug-in, thermally protected motor with resilient mount-
•
ing and permanent lubrication
Uses Model 420 rough-in kit with 3¼” x 10” duct
•
Add transition, ductwork, elbows, and roof cap (see back)
•
Model 323
Interior-mounted
Twin centrifugal blower - 1170 cfm
•
Plug-in, thermally protected motor with resilient mount-
•
ing and permanent lubrication
Heat Sentry™ protection - turns blower on to high speed
•
when excess cooking heat is detected
Uses Model 422 rough-in kit with 4½” x 18½” discharge
•
Add transition, ductwork, elbows, and roof cap (see back)
•
Model 329H
Control pack for use with Model 331H & 332H Exterior
Blower
Model 331H moves 600 cfm
•
Model 332H moves 900 cfm
•
Heat Sentry™ protection - turns blower on to high speed
•
when excess cooking heat is detected
Add appropriate transition and ductwork (see back)
•
high capacity blower
for conventional cooking
TYPICAL SPECIFICATION
Blower system shall be Broan Model 320 (Model 323).
Blower system to have solid-state controls with infinite ad-
justment.
Filters to be washable aluminum.
Unit to have two lamps, each with 100 watt bulbs.
Motor to be permanently lubricated, thermally protected, and
resiliently mounted.
Air delivery shall be no less than, and sound levels no greater
than listed for each model. All air and sound ratings shall be
certified by HVI. Unit to be U.L. listed.
SPECIFICATIONS
MODEL APPLICATION VOLTS CFM SONES ROUGH-IN KIT
320 Interior - gas or 120 420 6.0 420
electric ranges
323 Interior high 120 1170 12.5 422
capacity
329H Control Pack 120 — — Included
for Exterior
Blower
Broan-NuTone LLC, 926 West State Street, Hartford, WI 53027 (1-800-637-1453)
NuTone, Inc., 4820 Red Bank Road, Cincinnati, OH 45227 (1-800-543-8687)
REFERENCE QTY. REMARKS Project
Location
Architect
Engineer
Contractor
Submitted By Date
10C 99042761B
CUSTOM HOOD BLOWER SYSTEM
Model 634
Roof Cap
Straight ductwork
sections
(NOT SHOWN).
2 ft. lengths
most common.
Models
331H &
332H
Exterior
Blowers
Model 437
High-Capacity
Roof Cap
Model 421
10" Round
Damper
1
2
10
Model 420
3¼” x 10”
Rough-in
Plate
Models 411, 412H, 413
3¼” x 10" to 6”, 7”, 8”
Round Transition
Model 428
3¼” x 10"
900 Elbow
23
1
2
Included with
Model 329H
4½” x 18½”
Rough-in
Plate
Model 454
4½ x 18½
to 10” Rd.
Right
Transition
Model 423
4½ x 18½ to 10”
Rd.
Vertical
Transition
13
9
Model 422
4½” x 18½”
Rough-in
Plate
Model 418
10” Round
900 Elbow
1
4
Model 424
4½ x 18½
to 10” Rd.
Front/Rear
Transition
(320 & 329)
(323)
Model 320 Interior Blower
Model 323 Interior Blower
Model 329H Interior Control Pack
(420 cfm)
(1170 cfm)
(for use with Models 331H &
332H)