Carrier 58MCB- Manuals

6 MANIFOLD MOUNTING SCREWS MANIFOLD GAS VALVE REGULATOR FITTING GAS CONTROL VALVE CELL PANEL GASKET A02312 Fig. 6 -- Burner Box Assembly Step 3 — Cleaning Burners The following items should be performed by a qualified servicetechnician. If the burners develop an accumulation of light dirt or dust, t...

7 FIRE, EXPLOSION, UNIT DAMAGE HAZARD Failure to follow this warning could result in personal injury, death, or property damage.Gas valve switch MUST be facing forward or tilted slightly. ! WARNING 19. Replace burner box cover.20. Turn on gas and electrical supplies to furnace. FIRE OR EXPLOSION HAZ...

8 PAM RTV A93087 Fig. 9 -- Combustion--Air Intake Housing Gasket Repair 13. Refer to furnace wiring diagram and reconnect wires to flame rollout switch, gas valve, igniter, and flame sensor. 14. Reconnect pressure switch tubes to gas valve and intake housing. Refer to tube routing label on main furn...

9 Furnace is shipped from factory in upflow configuration. Pressure tube and drain tube routing MUST match the diagrams below. Tube location when used in DOWNFLOW application Tube location when used on HORIZONTAL - RIGHT application PLUG CAP COLLECTOR BOX DRAIN TUBE (BLUE & WHITE STRIPED) COLLEC...

10 16. Replace main furnace door. Step 6 — Servicing Hot Surface Igniter The igniter does NOT require annual inspection. Check igniter resistance before removal. 1. Turn off gas and electrical supplies to furnace. BURN HAZARD Failure to follow this caution may result in personal injury.Allow igniter...

11 2-5/32˝ (55 mm) A04181 Fig. 14 -- Igniter ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death.Igniter wires must be securely placed in slot in manifold grommet or else they could become pinched or severed and electrically shorted. ! WARNING Step 7 — Ele...

13 UNIT AND PROPERTY DAMAGE Failure to follow this caution may result in furnace component failures or water property damage.Operating a unit without a filter or with the blower access door removed could cause damage to the furnace blower motor. Dust and lint on internal parts of furnace can cause a...

14 A99118 Fig. 18 -- Inducer Housing Drain Tube Component Test NOTE : The furnace control component test allows all components to run for a short time; except the gas valve andhumidifier terminal HUM are not energized for safety reasons. TheEAC--1 terminal is energized when the blower is energized. ...

15 SERVICE To initiate the component test sequence, shut OFF the room thermostat or disconnectthe "R" thermostat lead. Briefly shor t the TEST/TWIN terminal to the "Com 24V" ter-minal. Status LED will flash code and then turn ON the inducer motor. The inducermotor will run for the en...

16 PCB T RA N FR S NO TE # 11 LS PR S (W H EN US ED ) LG PS FU SED O R CI R C U IT BREAKE R DI SC ONNE C T SWI TCH ( W HE N R EQ’ D) NO TE # 2 JB L1 L1 BL W R TO 11 5V AC FI EL D DI SCO NNECT NO TE # 2 EQ U IP M EN T G R O U ND SP AR E- 1 HE AT C OOL HS IR EA C -1 ST AR T OL HI M ED HI ME D L O LO B...

17 Is LED status light on? Is LED status light b linking rapidly without a pause? Is LED status light b linking ON/OFF slo wly with a combination of shor t and long flashes? Deter mine status code . The status code is a 2 digit number with the first digit deter mined by the number of shor t flashes ...

19 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenance • Installation Overview • Operating Sequence A large selection of product, theory, and skills programs is ...

5 Examine the furnace installation monthly to determine that:1. All fl ue gas carrying areas external to the furnace (i.e. chimney, vent connector) are clear and free of obstructions. 2. The vent connector is in place, slopes upward and is phys- ically sound without holes or excessive corrosion. 3. ...

6 11 12 3. Turn OFF electrical supply to the furnace. (See Fig. 12.)4. Remove main furnace door. (See Fig. 13.) 13 5. The gas valve will have a control switch to turn off and on. Turn the control switch on the gas control to the OFF position and wait 5 minutes. (See Fig. 14 or 15.) Then smell for ga...

7 After the hot surface igniter is heated for 17 seconds, the gas valve permits gas to fl ow to the main burners. After ignition and a time delay of about 60 sec, the furnace blower will start. Variable-capacity furnaces start at low speed until the control makes the necessary adjustments to operate...

8 Only trained and quali fi ed personnel should install, repair, or ser- vice heating equipment. Untrained personnel can perform basic maintenance functions such as cleaning and replacing air fi lters. All other operations must be performed by trained and qual-i fi ed service agency personnel. Obser...

9 31 32 b) Electronic air cleaner (EAC) – Refer to EAC Owner’s Manual for maintenance information. 5. If washable fi lter, wash fi lter (if dirty) in sink, bathtub, or out- side with a garden hose. Always use cold tap water. A mild liquid detergent may be used if necessary. Spray water through fi lt...

10 Check the combustion-air intake and vent pipe on the outside of your home for blockage.When dirt, soot, scale, or rust is allowed to build up, your furnace can suffer a loss of ef fi ciency and perform improperly. Accumu- lations on the main burners can result in fi ring out of normal sequence. T...

11 6. Insert fi eld-supplied funnel into tube. 7. Pour 1 quart of antifreeze into funnel/tube. Antifreeze should run through inducer housing, over fi ll condensate trap, and fl ow into open fi eld drain. (See Fig. 43.) 8. Remove funnel and tube from inducer housing and replace drain connection cap a...

TO OBTAIN INFORMATION ON PARTS: Consult your installing dealer or the classi fi ed section of your local telephone directory under the “Heating Equipment’’ or “Air Conditioning Contractors & Systems’’ heading for dealer listing by brand name. Have available the Model No., Series Letter, & Se...