Instruction/ maintenance manual of the product G21Q Lennox International Inc.
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E 1994 Lennox Industries Inc. G21Q & V SERIES PRODUCT LITERA TURE 1996 Lennox Industries Inc. Litho U.S.A. 503,072M 8/99 Supersedes 6/96 WHA T TO DO IF YOU SMELL GAS: If the information in this manual is not followed exactly , a fire or explosion may result causing property damage, personal injury or loss of life.
Page 1 G21 (Q & V) Series Parts Arrangement FIGURE 1 AIR INT AKE CONNECTION LIMIT CONTROL LOW VOL T AGE TERMINAL STRIP GAS V AL VE EXP ANSION T ANK CONTROL BOX DOOR INTERLOCK SWITCH DIFFERENTIAL P.
Page 2 U se only your hand to push in or move the gas control lever or switch. Never use tools. If the lever or switch will not push in or move by hand, do not try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.
Page 3 THERMOST A TS FIGURE 3 1- Set thermostat to lowest setting. See figure 3. 2- T ur n off all elec trical power to furnace. See figure 5. 3- This appliance Is equipped with an ignition device which automatically lights the burner . Do not try to light the burner by hand.
Page 4 FIGURE 4 MANUAL MAIN SHUT-OFF V AL VE GROUND JOINT UNION DRIP LEG GAS CONNECTOR RIGHT SIDE PIPING AUTOMA TIC GAS V AL VE GAS PIPING FIGURE 5 FOR UNIT TO OPERA TE DISCONNECT SWITCH MUST BE IN ON" POSITION TYPICAL FUSE/DISCONNECT SWITCH BOX MOUNTED ON FURNACE Servicing the Filter Inspect and clean air filters each month.
Page 5 Service Reminder Call your Lennox service technician if the unit is inopĆ erative. Before calling, always check the following to be sure service is required: 1- Be sure electrical switches are ON . 2- Check the room thermostat for proper setting.
An important point after buying a device Lennox International Inc. G21Q (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lennox International Inc. G21Q yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lennox International Inc. G21Q - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lennox International Inc. G21Q you will learn all the available features of the product, as well as information on its operation. The information that you get Lennox International Inc. G21Q will certainly help you make a decision on the purchase.
If you already are a holder of Lennox International Inc. G21Q, 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. G21Q.
However, one of the most important roles played by the user manual is to help in solving problems with Lennox International Inc. G21Q. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lennox International Inc. G21Q 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
