Jenn-Air CVE4180S-C, CVE4180S, CVE4180B-C, CVE4180B, CVE3401W Installation Instructions

Downdraft

Ducting

Guide

®

T H E S I G N O F A G R E A T C O O K ®

Important Information

Dealer

Installer

Model and Serial Numbers

Equivalent Length

Fittings Required

Questions

Introduction

Jenn-Air downdraft ranges and cooktops will adapt

						to various		locations. The blower assem-
						bly is		runs up to 60 equivalent feet.
						When			installation, please refer
						to this		that all of the ducting needs
						will be met	refer to the product and duct-
						ing installation			included with the Jenn-
						Air product
						Jenn-Air downdraft ventilation systems are
						designed		at a high rate of speed. High
						speed air			the exhausting of smoke
						and fumes	hold grease and moisture in sus-
						pension		the home.

Cooktop Example

The downdraft cooking system operates on the principle of localized or “proximity” ventilation. This system creates a high velocity exhaust air pattern near the cooking surface. The air movement is created by a blower motor and squirrel cage fan blade encapsulated by a blower scroll. This scroll is aligned with a plenum chamber. On cooktops, the scroll is attached directly to the plenum chamber. On ranges it mounts remotely under the range. Since this system differs from the familiar forced-air heating and air conditioning system you may have in your home that uses low velocity air flow, the Jenn-Air system will require different duct work design techniques.

This guide will take you step-by-step through the planning process and will assist you in determining the types of materials needed to properly install a Jenn-Air product.

The goal of the system is to maintain the proper amount of airflow to efficiently pull smoke and other cooking fumes to the outside without pulling excessive air across the cooking surface. Too little air movement will result in a smoke filled kitchen while too much air movement will result in pro- longed cooking times due to cooled off food.

The equipment design is flexible enough that the ducting can be done simply with up to three turns (elbows) and not rely on fancy sheet-metal work.

S T E P1 Environment

When considering the location for a Jenn-Air prod-

cabinets or walls is 6”. However, the minimum

uct, environmental influences that can affect ventila-

clearance can be from 2 inches for cooktops to 1

tion performance must be considered.

inch for ranges. Please refer to the installation

Make-Up Air - The air that is exhausted by the unit

instructions for the particular product.

must be replaced. If a room or house is too “tight”,

the unit may not vent properly. If a house or room is

too tight, it will be necessary to introduce more air

into the environment. Some air conditioning and

heating units allow for make-up air.

Air Movement - Any other air movement devices

such as, ceiling fans, air conditioner registers, etc.

can create air currents which interfere with down-

draft ventilation.

Adjacent Cabinets - Cabinets that are closer than

the minimum distance allowed can create dead air

pockets that impair performance. For maximum

performance, the recommended distance to adjacent