158MCB4 --- W a y M u l t i p o i s e F i x e d --- C a p a c i t yCo ndensing Gas FurnaceService and Maintenance InstructionsFor Sizes 040-- 120, Ser
1016. Replace main furnace door.Step 6 — Servicing Hot Surface IgniterThe igniter does NOT require annual inspection. Check igniterresistance before r
112-5/32˝(55 mm)A04181Fig. 14 -- IgniterELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury or death.Igniter wires mu
12115-V FIELD-SUPPLIEDDISCONNECTAUXILIARYJ-BOX24-VTERMINALBLOCKTHREE-WIREHEATING-ONLYFIVE WIRENOTE 1NOTE 2FIELD-SUPPLIEDDISCONNECTCONDENSINGUNITTWOWIR
13UNIT AND PROPERTY DAMAGEFailure to follow this caution may result in furnacecomponent failures or water property damage.Operating a unit without a f
14A99118Fig. 18 -- Inducer Housing Drain TubeComponent TestNOTE: The furnace control component test allows allcomponents to run for a short time; exce
15SERVICETo initiate the component test sequence, shut OFF the room thermostat or disconnectthe "R" thermostat lead. Briefly short the TEST/
16PCBTRANFRSNOTE #11LSPRS(WHEN USED)LGPSFUSED OR CIRCUIT BREAKERDISCONNECT SWITCH (WHEN REQ’D)NOTE #2JBL1L1BLWRTO 115VAC FIELD DISCONNECTNOTE #2EQUIP
17Is LED status light on?Is LED status light blinking rapidly without apause?Is LED status light blinking ON/OFF slowlywith a combination of short and
1811NO PREVIOUS CODE – Stored codesare erased after 72 hours. On RED LEDboards stored status codes can also beerased whenever power (115V or 24V)is i
19SERVICE TRAININGPackaged Service Training programs are an excellent way to increase yourknowledge of the equipment discussed in this manual, includi
2A05078Fig. 1 -- Furnace in Upflow OrientationamaREGISTEREDISO 9001:2000CERTIFIEDInstalling and servicing heating equipment can be hazardous due togas
20Copyright 2009 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 10/09Manufacturer reserves the right to c
3person’s hand during grounding will be satisfactorily dis-charged.3. After touching the chassis, you may proceed to service thecontrol or connecting
4Table 1 – Furnace Air Filter TableFURNACE CASING WIDTHIN (MM)FILTER QUANTITY AND SIZE *FILTER TYPE*SIDE RETURN*IN (MM)BOTTOM RETURN*IN (MM)17---1/2 (
51. Turn off electrical supply to furnace.2. Remove main furnace door and blower access panel.3. Disconnect wiresAll factory wires can be left connect
6MANIFOLDMOUNTINGSCREWSMANIFOLDGAS VALVEREGULATORFITTINGGASCONTROLVALVECELLPANELGASKETA02312Fig. 6 -- Burner Box AssemblyStep3—CleaningBurnersThe foll
7FIRE, EXPLOSION, UNIT DAMAGE HAZARDFailure to follow this warning could result in personalinjury, death, or property damage.Gas valve switch MUST be
8PAMRTVA93087Fig. 9 -- Combustion--Air Intake HousingGasket Repair13. Refer to furnace wiring diagram and reconnect wires toflame rollout switch, gas
9Furnace is shipped from factory in upflow configuration. Pressure tube and drain tube routing MUST match the diagrams below.Tube location when used i
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