Carrier Deluxe 58MVB Service And Maintenance Instructions

Also see for 120 Series: Installation, start-up, and operating instructions Installation, start-up, operating and service and maintenance instructions Manual Operating instructions

Contents

Carrier Deluxe 58MVB Service And Maintenance Instructions Manual pdf 5 page image

5(1.) Connect 1 tube (blue or blue and white striped)from collector box.(2.) Connect 1 tube (violet or unmarked) from inducerhousing.(3.) Connect 1 tube (relief port, green or pink) fromcollector box.c. Connect field drain to condensate trap.NOTE: Ensure tubes are not kinked or pinched, as this willaffect operation.12. Reinstall control box, transformer, and door switch assem-bly on blower shelf.13. Reconnect wires.Refer to furnace wiring diagram and connect thermostatleads if previously disconnected. (See Fig. 21.)ELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury or death.Blower access panel door switch opens 115--v power tofurnace control. No component operation can occur.Caution must be taken when manually closing thisswitch for service purposes.! WARNING14. Turn on electrical supply. Manually close blower accesspanel door switch. Use a piece of tape to hold switchclosed. Check for proper rotation and speed changes be-tween heating and cooling by jumpering R to G and R toY/Y2 on furnace control thermostat terminals. (See Fig.15.)15. If furnace is operating properly, release blower access pan-el door switch, replace blower access panel, and replacemain furnace door.Step 3—Cleaning BurnersThe following items should be performed by a qualified servicetechnician. If the burners develop an accumulation of light dirt ordust, they may be cleaned by using the following procedure:1. Turn off gas and electrical supplies to furnace.2. Remove main furnace door.3. Remove burner box cover.4. Using backup wrench, disconnect gas supply pipe fromfurnace gas control valve.UNIT DAMAGE HAZARDFailure to follow this caution may result in furnacecomponent damage.Label all wires prior to disconnection when servicingcontrols. Wiring errors can cause improper and dangerousoperation.CAUTION!5. Remove wires from gas valve. Note location for reassemb-ly.6. Remove burner box pressure tube from gas valve regulatorfitting.7. Unplug igniter from harness.8. Remove igniter leads from slot in manifold grommet.9. Remove screws that secure manifold to burner box. (SeeFig. 6.)NOTE: Do not remove burner box from cell panel.10. Remove manifold, orifices, and gas valve as 1 assembly.11. Remove screws attaching burner assembly in burner box.NOTE: Use care when removing and reinstalling burners not tostrike the hot surface igniter.MANIFOLDMOUNTINGSCREWSMANIFOLDGAS VALVEREGULATORFITTINGGASCONTROLVALVECELLPANELGASKETA02312Fig. 6 --- Burner Box AssemblyIGNITER WIRES MUSTBE PLACED IN THIS SLOTA05074Fig. 7 --- Igniter Wire Placement12. Remove burner assembly from burner box.NOTE: All burners are attached to burner bracket and can beremoved as 1 assembly.13. Clean burners with soft brush and vacuum.14. Reinstall manifold, orifice, and gas valve assembly inburner box. Ensure manifold seal grommet is installedproperly and burners fit over orifices.58MVB