Desa CGB50P, CGB35P installation manual Fresh AIR for Combustion and Ventilation

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FRESH AIR FOR COMBUSTION AND VENTILATION

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WARNING

This heater must have fresh air for proper operation. If not, poor fuel combustion and improper venting of flue gases will result. Carbon monoxide poisoning from backed-up flue gases could occur. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.

Today’s homes are built more energy efficient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.

While it is good to make your home energy efficient, it is not good to make it too airtight. Your home needs to breath. If your home is too airtight, fresh air has little chance of entering in. This could be dangerous if you have fuel-burning appliances. These appliances need fresh, outside air for proper combustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and fuel-burning appliances draw air from the house to operate. This heater is a fuel-burning appliance. It uses air from inside the house for combustion. It also uses this air as a draft for venting. This draft air helps move combustion gases through the vent pipe to the outdoors. If your house is too airtight, there is not enough fresh air for these items to use. Fresh air may draw back into the house through venting flues and chimneys. This will keep fuel- burning appliances from venting properly. This may cause them to release poison- ous carbon monoxide gas into your home. It is very important to provide enough fresh air to run all fuel-burning appliances.

DANGER

Carbon monoxide poisoning may lead to death!

Carbon monoxide is a colorless, odorless gas. Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, and/or nausea. If you have these signs, the heater may not be operating or venting properly. Get fresh air at once! Have heater or heater venting system serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, persons with heart and lung disease and anemia, those under the influence of alcohol, and those at high altitudes.

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Contents For Your Safety OWNER’S Operation and Installation ManualWhat to do if YOU Smell GAS Contents Safety Information Carbon monoxide poisoning may lead to deathSafety Information Product Identification Installation Items Local Codes Unpacking Product FeaturesCheck GAS Type Locating Heater Heater ClearancesVenting Heater Venting Heater Do not vent heater in any of the following ways see FigureVenting Heater Proper Size Vent Connecting to GAS Supply External Regulator with Vent Pointing DownGas Connection Pressure Testing Gas Supply Piping System Checking GAS ConnectionsInstalling Glass Panel Removing Lower Front Access PanelInserting Glass Panels Fresh AIR for Combustion and Ventilation Determining FRESH-AIR Flow for Heater Location Draft Hood Spillage TestVentilation Air from Outdoors Example 2 Locating Heater in Confined Closed Area Operating Heater For Your Safety Read Before LightingLighting Instructions Viewing Pilot Manual Lighting Procedure To Turn OFF GAS to ApplianceShutting Off Heater Shutting Off Burner Only pilot stays litPilot Flame Pattern Inspecting Pilot and Burner FlameBurner Flame Pattern Correct Burner Flame Pattern Cleaning and Maintenance Trouble Shooting Observed Possible Problem Cause RemedyObserved Possible Remedy Problem Cause TROUBLE- ShootingStat bulb satisfied Gas leak. See Warning Statement at topService Procedures Removing Control Valve and Burner TubeRemoving Burner Changing Burner Orifice Orifice Location 35,000 BTU/Hr Burner ShownTechnical Service Service Hints35,000 BTU/Hr ModelParts Under Warranty Ordering Replacement Parts CentralsParts Not Under Warranty Accessories Valve GA5010Illustrated Parts List QTY Cabinet Assembly 100352 Warranty Information International