Carrier 48GS user manual

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48GS,GX
Combination Gas Heating/
Electric Cooling Units
AGuide To Operating and Maintaining Your
Gas Heating/Electric Cooling Unit
NOTE TO INSTALLER
FOR YOUR SAFETY
This manual should be left with the equipment owner. WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
FOR YOUR SAFETY
• Donottouchanyelectricalswitch;donot
use any phone in your building.
Do not store or use gasoline or other
• Immediatelycallyourgassupplierfrom
flammablevaporsandliquidsinthevicin-
aneighbor’sphone.Fol

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Your combination heating/cooling unit is equipped with anautomaticdirectsparkignitionandpowercombustionblower. Do not attempt to light by hand; personal injury may result. TO LIGHT UNIT 1. Do not turn off the electrical power to unit without first turning off the gas supply. 2. Beforeattemptingtostartthegasheatingsection,fa- miliarize yourself with all the procedures that must be followed. Ifyoudonotfollowtheseinstructionsexactly,afireor explosion may result, causing property damage, injury, FRONT

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ROUTINE MAINTENANCE Allroutinemaintenanceshouldbehandledbyskilled,ex- Neveroperateyourunitwithoutfiltersinplace.Failure perienced personnel. Your dealer can help you establish a toheedthiswarningmayresultindamagetotheblower standard procedure. motorand/orcompressor.Anaccumulationofdustand Foryoursafety,keeptheunitareaclearandfreeofcom- lint on internal parts of your unit can cause loss of ef- bustiblematerials,gasoline,andotherflammableliquidsand ficiency and, in some cases, fire. vapors. Toassurepr

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STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 7 STEP 6 STEP 10 STEP 9 STEP 8 Fig.3—To Light Unit 4

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STEP 1 STEP 2 STEP 3 STEP 5 STEP 4 STEP 6 STEP 7 Fig.4—To Shut Unit Off 5

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Components in heat section may be hot after unit hasbeenstartedup.Whenobservingflame,becare- ful not to get close to or touch heating components or serious personal injury may result. Watch the burner flame to see if it is bright blue. If you observe a suspected malfunction or if the burner flames are not bright blue, call your dealer. 6. Replace burner access panel. UnitPanels— Afterperforminganymaintenanceorserv- ice on the unit, be sure all panels are fastened securely in place to prevent rain f

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BEFORE YOU CALL FOR SERVICE, NOTE: Before proceeding with the next check, turn OFF CHECK FOR SEVERAL EASILY-SOLVED the gas supply, then the electrical power supply to the unit. PROBLEMS Remove the control access door. If insufficient heating or cooling is suspected: ( )Duringtheheatingseason,checkthecontroldialonthe internal gas valve. Is it in the ON position? If it is not, be ( )Checkforsufficientairflow.Checktheairfilterfordirt. sure it was not turned off for the purpose of safety. If no Check

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MODEL 48GS WARRANTY 11

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MODEL 48GX WARRANTY Copyright 1999 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 PC 111 Catalog No. 534-742 Printed in U.S.A. Form 48GS,GX-1SO Pg 12 3-99 Replaces: 48GS-1SO Tab 1a 6a