Instruction/ maintenance manual of the product GCS20R-042 Lennox International Inc.
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504,558M *P504558M* 08/02 *2P0802* W ARNING Improper installation, adjustment, alteration, ser vice or maintenance can cause property damage, personal injury or loss of life. Installation and ser vice must be performed by a qualified installer , ser vice agency or the gas supplier Litho U.
Page 1 GCS16, 20, and 20R Parts Arrangement GAS VA LV E COMPRESSOR COMBUSTION AIR INDUCER JUNCTION BOX BURNER CONDENSER COIL VENT CAP Safety 1− Keep unit area clear and free of combustible materi als, gasoline and other flammable vapors and liquids.
Page 2 W ARNING Danger of electrical shock, explosion and fire. Improper servicing could result in dangerous operation, serious inujry , death or property damage. Unit Operation FOR YOUR SAFETY READ BEFORE LIGHTING BEFORE L I GHTING smell all around the furnace area for gas.
Page 3 B−T o T urn Off Gas T o Unit 1− If using electromechanical thermostat, set to the low est setting. 2− Turn of f all electrical power to unit if service is to be performed. 3− Remove heat section access panel. 4 − Turn knob on Honeywell gas valve clockwise until it stops.
An important point after buying a device Lennox International Inc. GCS20R-042 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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If you already are a holder of Lennox International Inc. GCS20R-042, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lennox International Inc. GCS20R-042.
However, one of the most important roles played by the user manual is to help in solving problems with Lennox International Inc. GCS20R-042. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lennox International Inc. GCS20R-042 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
