Carrier 58B User's Manual
Contents
1. thermostat senses this and turns on the system First the gas valve opens and the burners are lighted by your pilot After a few moments the blower turns on automatically The air it moves over the element is warmed and goes on thru the ducts to room registers When the temperature in the room reaches the thermostat setting the gas valve closes and the burners are turned off The blower continues a few moments until the heat in the element is used up Then it turns off too All forced air furnaces are equipped with high temperature limit switches one on most upflow models two on other types that prevent the furnace from overheating by turning off the burners if the blower fails to come on Except on downflow furnaces these switches should recycle automatically causing the burner to go on and off On downflow models the second of the two switches used requires manual reset Reset button is on furnace top Carrier Corporation 1969 Here s How You Get Greater Satisfaction The following steps are very easy to perform So before you get ready to light your furnace pilot make sure that you have gone thru the list 1 Open all warm air registers and make sure that all return air grilles are unobstructed 2 Set room thermostat below room temperature 3 If a humidifier is installed with your system open the water supply valve 4 If a line voltage switch is provided in the furnace circuit make sure that it is turned to2. Carrier Upflow and Downflow Gas Fired Furnaces HANG ON WALL NEAR FURNACE This 58B unit has been approved by the American Gas Association Laboratories and carries all required safeguards against fires and accidents Such occurrences will take place only if the unit is mistreated or not properly maintained The operation and care of your unit is simple and easy By following these operating and main tenance procedures you can expect to receive better longer and more reliable service from your new Carrier appliance Here Are a Few Do s and Don ts Do become familiar with wallcard instructions Do use filters Check them periodically and make sure that they are clean Don t set your thermostat too low Ideal comfort zone is usually between 72 F and 78 F o Don t be a thermostat jiggler Frequent changing of your thermostat can increase your operating costs Don t turn your furnace off just because you ll be away for a day or more It takes quite a while to restore comfort but it costs rela tively little to maintain it e Don t block registers with furniture Don t put a lamp TV or radio too near your thermostat This will cause it to give a false reading Here s How Your Heating System Works The furnace operates automatically It is con trolled by a thermostat which you set at the temperature most comfortable to you When the inside temperature drops below this setting your
3. eroil motor Three drops in each oil cup is enough More will attract dirt Keeping Heater Element Clean In your general furnace housekeeping don t forget the heater element It s a good idea to have your dealer serviceman check the heat exchanger at the start of each heating season and if necessary perform the following procedures 1 Make sure that all utilities are turned off 2 Remove burners manifold assembly vent con nectors and draft diverter 3 Remove flue baffles from upper flue outlet 4 Clean flue ways with brush or vacuum cleaner 5 Replace baffles ensuring rear of baffle engages dimple in heating element Secure screws care fully so that heating element will be leak tight 6 Replace remaining parts turn on utilities 7 Test for leaks Here s A Handy Checklist If your furnace fails to operate properly first check the following It may save you the cost of a service call l Is your room thermostat set correctly On heating cooling systems the thermostat system switch should be turned to Heat the fan switch to Auto or Cont continuous fan operation 2 Are the power and gas both on 3 Are the filters clean If the answer to these questions is Yes and the furnace still doesn t operate properly call your Authorized Carrier Dealer for service DEALER S NAME ADDRESS SERVICE Day Night MODEL NO SERIAL NO DATE INSTALLED For replacement
4. items use Carrier specified parts Manufacturer reserves the right to change any product specifications without notice CARRIER AIR CONDITIONING COMPANY SYRACUSE NEW YORK Tab 10 Form 58B 1SO Supersedes 58BA501815 Printed in USA 6 69 Codes E and MS Catalog No 535 800
5. n the furnace to the On position 2 On heating cooling models turn the thermostat fan switch to Cont 3 If your needs are not met by Step 1 or 2 see your dealer for specific instructions SDN Form 58B 1SO STOPPING YOUR UNIT Follow these simple procedures to put your unit into retirement for the summer 1 Close the main burner manual gas shutoff valve 2 Close the pilot manual gas shutoff valve 3 Turn the unit electric switch to Off 4 Close humidifier water supply valve if unit is equipped with a humidifier MAINTAINING YOUR UNIT The life of your system depends on the care you give it Proper care assures good performance lack of it can damage the unit and invalidate your warranty Here are the things you should do or have your dealer serviceman do for you NOTE Before you start turn off all electrical power to unit and turn thermostat to Off Keeping Filters Clean As a homeowner this is your most important responsibility A dirty filter reduces efficiency of your system causing erratic performance of controls and resulting in damage to the motor or heating element 1 Inspect filters at regular intervals depending upon dirt conditions On new homes check the filter every week for four consecutive weeks to begin with In all cases inspect your filters at least every two or three weeks when the system is in constant operation Replace filters at the beginni
6. ng of each season and thereafter as needed 2 If you have disposable type filters and they are moderately dirty clean with vacuum or tap lightly over newspaper Replace filter with arrows pointing in the direction of air flow Turn dirtiest side toward return air stream to prevent dirt from being blown into supply air when the blower is started Replace disposable filters with same type after one cleaning 3 If you have permanent type filters and they become extremely dirty they can be cleaned with hose and water Be sure to spray expand able aluminum type filters with a filter coat after each washing Your dealer has this avail able in handy spray cans If your filter is a Duralast type this coating is not necessary Ensure that filters are thoroughly dry before replacing them Some permanent type filters may be vacuum cleaned or shaken out It s not necessary to wash them Check the manu facturer s recommendations NOTE Do not operate unit with blower door removed Lubricating Motors Direct drive motor and blower assemblies are factory lubricated and sel dom requite oiling Frequency and amount of oiling depends upon usage and climatic conditions Consult your dealer serviceman for specific in structions Belt drive motor and blower assemblies should be oiled at the beginning of each season with a good grade of non detergent SAE No 20 motor oil Oil cups are at each end of the motor NOTE Do not ov
7. the Off position 5 Make sure that the main burner and pilot manual gas shutoff valves are closed On and Off positions are clearly marked 6 Wait five minutes for unit to be purged of gas and then get ready to start the burner STARTING YOUR BURNER Lighting in structions are also shown on rating plate located on or near burner compartment door Should any doubt exist in your mind concerning proper lighting procedures call your gas serviceman to light unit 1 After five minute wait for unit to be purged of gas turn unit electric switch to Off 2 Open the pilot manual gas shutoff valve 3 Light the pilot with a match or taper NOTE If your unit is equipped for 100 percent shutoff it will be necessary to reset the safety valve before you can relight the pilot Open the main burner manual gas shutoff valve Turn the unit electric switch to On Set your thermostat to the desired room temperature On heating cooling systems set the system switch to Heat and the fan switch to Auto or Cont That s all there is to it OPERATING FAN CONTINUOUSLY FAN SWITCH SET ON CONT Your distribution system will perform at its best if the furnace fan is run continuously when weather outdoors is 40 F or less This will eliminate cold floors and hot ceilings and provide for a more constant temperature 1 On heating only models turn the summer switch located o
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