Desa Tech CGN20TA installation manual Safety Information

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CGN20TA

Blue Flame Vent-Free Natural Gas Heater

SAFETY

INFORMATION

WARNINGS

WARNING ICON

G 001

IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.

DANGER: Carbon monoxide poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re- semble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.

Natural Gas: Natural gas is odorless. An odor-making agent is added to natural gas. The odor helps you detect a natural gas leak. However, the odor added to natural gas can fade. Natural gas may be present even though no odor exists.

Make certain you read and understand all Warnings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.

WARNING: Any change to this heater or its controls can be dan- gerous.

1.This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.

2.If you smell gas

shut off gas supply

do not try to light any appliance

do not touch any electrical switch; do not use any phone in your build- ing

immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions

if you cannot reach your gas supplier, call the fire department

3.This heater shall not be installed in a bedroom or bathroom.

4.Never install the heater

in a recreational vehicle

where curtains, furniture, clothing, or other flammable objects are less than 36 inches from the front, top, or sides of the heater

as a fireplace insert

in high traffic areas

in windy or drafty areas

5.This heater needs fresh, outside air ven- tilation to run properly. This heater has an oxygen depletion sensor (ODS) pi- lot light safety system. The ODS shuts down the heater if not enough fresh air is available. See Fresh Air for Combus- tion and Ventilation, pages 4 through 6.

6.Keep air openings in front and bottom of heater clear and free of debris. This will ensure enough air for proper com- bustion.

7.If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.

8.Do not run heater

where flammable liquids or vapors are used or stored

under dusty conditions

9.Never place any objects on the heater.

10.Surface of heater becomes very hot when running heater. Keep children and adults away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a time after shut-down. Allow surface to cool before touching.

11.Carefully supervise young children when they are in the same room with heater.

12.Make sure grill guard is in place be- fore running heater.

13.Do not use heater if any part has been under water. Immediately call a quali- fied service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.

14.Turn off and unplug heater and let cool before servicing. Only a qualified ser- vice person should service and repair heater.

15.Operating heater above elevations of 4,500 feet could cause pilot outage.

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Contents Blue Flame VENT-FREE Natural GAS Heater What to do if YOU Smell GASSafety Information CGN20TALocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction Fresh AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationInstallation Items Locating HeaterInstalling Heater to Wall Thermostat Sensing BulbPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsAttaching Mounting Bracket To Wall Connecting to GAS Supply Typical Inlet Pipe DiametersChecking GAS Connections Pressure Testing GAS Supply Piping SystemPressure Testing Heater GAS Connections Test Pressures In Excess Of 1/2Lighting Instructions For Your Safety Read Before LightingOperating Heater To Turn OFF GAS To ApplianceThermostat Control Operation Manual Lighting ProcedureInspecting Burner Pilot Flame PatternTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Gas leak. See Warning statement at Technical Service Cleaning and Maintenance SpecificationsService Publications Replacement Parts Service HintsParts Centrals FBDManual Shutoff AccessoriesFAN Kits GA3100A and GA3200TA Illustrated Parts Breakdown CGN20TAParts List KEY Part Number Description QTYCGN20TA 104190 Warranty Information