Carrier GAS FURNACE 58MXA Instructions d'exploitation

58MXADeluxe 4-Way Multipoise Fixed-CapacityDirect-Vent Condensing Gas FurnaceInstallation, Start-Up, and Operating InstructionsFor Sizes 040—140, Seri

NOTE: See Fig. 9 or tube routing label on main furnace door tocheck for proper connections.Modify tube as described below.1. Disconnect collector box

4. Install casing hole filler cap into blower shelf hole where trapwas removed.5. Install condensate trap into casing hole by inserting tubeconnection

6. Route this extended tube (pink label) to condensate trap reliefport connection.7. Determine appropriate length, cut, and connect tube.8. Clamp tube

Provide ample space for servicing and cleaning. Always complywith minimum fire protection clearances shown on unit’s clear-ance to combustibles label.

Table 1—Opening Dimensions (In.)FURNACECASINGWIDTHAPPLICATIONPLENUM OPENING FLOOR OPENINGABCD17-1/2Upflow Applications 16 24-1/8 16-5/8 24-3/4Downflow

duct pliers or duct flange tool to bend flange back and forth untilit breaks off. Be careful of sharp edges. (See Fig. 16.)Do not bend duct flanges in

The entire length of furnace MUST be supported whenfurnace is used in a horizontal position to ensure properdraining. When suspended, bottom brace sup

Gas valve shutoff switch MUST be facing forward or tiltedupward. Failure to follow this warning could result inproperty damage or death.Never purge a

Maintain a 1-in. clearance from combustible materials to supply airductwork for a distance of 36 in. horizontally from the furnace. SeeNFPA 90B or loc

Make all electrical connections in accordance with NationalElectrical Code (NEC) ANSI/NFPA 70-1999 and any local codesor ordinances that might apply.

Fig. 2—Dimensional DrawingDimensions (In.)UNIT SIZE A D E040-08 17-1/2 15-7/8 16040-12 17-1/2 15-7/8 16060-08 17-1/2 15-7/8 16060-12 17-1/2 15-7/8 160

Fig. 24—Wiring DiagramA99406PCBPL7321654987Y1RY/Y2WCHUMEAC-2TRANFSENOTE #5GVFRSNOTE #6LSPRS(WHEN USED)LGPSFUSED OR CIRCUIT BREAKERDISCONNECT SWITCH (

4. Follow the lighting instructions. Place the appliance beinginspected in operation. Adjust thermostat so appliance shalloperate continuously.5. Test

Society for Testing and Materials (ASTM) standards D1785(schedule-40 PVC), D2665 (PVC-DWV), D2241 (SDR-21 andSDR-26 PVC), D2661 (ABS-DWV), F628 (sched

to reduce excessive droplets from exiting vent pipe outlet.COMBUSTION-AIR AND VENT PIPE DIAMETERDetermine combustion-air and vent pipe diameter.1. Usi

Inducer housing outlet cap must be installed and fully seatedagainst inducer housing. Clamp must be tightened to preventany condensate leakage. Failur

Table 6—Maximum Allowable Pipe Length (Ft)ALTITUDE UNIT SIZETERMINATIONTYPEPIPE DIA(IN.)*NUMBER OF 90° ELBOWS1234560 to 2000040-08040-122 Pipe or 2-In

Table 6—Maximum Allowable Pipe Length (Ft) ContinuedALTITUDE UNIT SIZETERMINATIONTYPEPIPE DIA(IN.)*NUMBER OF 90° ELBOWS1234 5 64001 to 5000‡040-08040-

7. Check dry fit of pipe and mark insertion depth on pipe.NOTE: It is recommended that all pipes be cut, prepared, andpreassembled before permanently

3. The 2-in. concentric vent/air termination kit is for 1-in., 1-1/2in., 2-in., and 2-1/2 in. diameter pipe systems when singlepenetration of wall or

Fig. 33—Sidewall Termination of 12 in. or MoreA87225MAINTAIN 12 IN.CLEARANCEABOVE HIGHESTANTICIPATED SNOWLEVEL OR GRADE,WHICHEVER ISGREATE

SAFETY CONSIDERATIONSInstalling and servicing heating equipment can be hazardous due togas and electrical components. Only trained and qualified perso

Drain pipe and fittings must conform to ANSI standards andASTM D1785 or D2846. CPVC or PVC cement and primer mustconform to ASTM D2564 or F493. In Can

Fig. 38—Sidewall Termination of 12 in. or Less(Dimension "A" is Touching or 2-In.Maximum Separation)A96129ACOMBUSTION AIRCOMBUSTION AIRVEN

4. Wrap field drain pipe with remaining heat tape, approximately1 wrap per ft.5. When using field-supplied heat tape, follow heat tape manu-facturer’s

operating on FAN speed for an additional 90 sec. To set thecooling off delay to 3 sec instead of 90, connect a jumperbetween the Y/Y2 and DHUM thermos

INITIATING COMPONENT TEST BY REMOVING MAINLIMIT SWITCH WIRENOTE: NO thermostat signal may be present at control centerand all blower time delay off pe

Make sure limit switch wire does not contact any metalliccomponent such as the gas valve. If wire is shorted, 3-ampfuse on control center will blow.NO

INITIATING COMPONENT TEST BY JUMPERING CON-TROL TEST TERMINAL1. Remove main furnace door.2. Remove blower access panel.3. Manually close blower access

Step 2—Prime Condensate Trap with WaterCondensate trap must be PRIMED or proper draining may notoccur. The condensate trap has 2 internal chambers whi

NOTE: For Canada altitudes of 2000 to 4500 ft, use U.S.A.altitudes of 2001 to 3000 ft in Table 8 or 9.e. Find closest natural gas heat value and speci

Table 8—Model 58MXA Orifice Size and Manifold Pressure for Correct InputFor Use with 040 through 120 Size Furnaces Only(Tabulated Data Based on 20,000

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONSElectrostatic discharge can affect electronic components.Take precautions during furnace installation and ser

Table 8—Model 58MXA Orifice Size and Manifold Pressure for Correct Input (Continued)For Use with 040 through 120 Size Furnaces Only(Tabulated Data Bas

Table 8—Model 58MXA Orifice Size and Manifold Pressure for Correct Input (Continued)For Use with 040 through 120 Size Furnaces Only(Tabulated Data Bas

Table 9—Model 58MXA Orifice Size and Manifold Pressure for Correct InputFor Use with 140 Size Furnaces Only(Tabulated Data Based on 23,000 Btuh per Bu

Table 9—Model 58MXA Orifice Size and Manifold Pressure for Correct Input (Continued)For Use with 140 Size Furnaces Only(Tabulated Data Based on 23,000

Follow this same procedure for proper selection of COOLspeed selection.Fig. 49—Redundant Automatic Gas ValveA95622MANIFOLDPRESSURE TAPGASPRESSURER

ADJUST BLOWER OFF DELAY (HEAT MODE)If desired, the main blower off time delay period may belengthened or shortened when operating in the heating mode

CHECKLIST—INSTALLATIONLOAD CALCULATION____________ Heating Load (Btuh)____________ Cooling Load (Btuh)____________ Furnace Model SelectionCOMBUSTION A

A94328SERVICE TRAININGPackaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, in

Copyright 2000 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 58mxa10siManufacturer reserves the right to discontinue, or change at any t

Improper installation, adjustment, alteration, service, mainte-nance, or use can cause carbon monoxide poisoning, explo-sion, fire, electrical shock,

NOTE: If internal filter is used, drain tube should be located toopposite side of casing of return duct attachment to assist in filterremoval.b. Remov

CONDENSATE TRAP TUBING (ALTERNATE UPFLOWORIENTATION)NOTE: See Fig. 6 or tube routing label on main furnace door toconfirm location of these tubes.1. C

1. Remove 3 tubes connected to condensate trap.2. Remove trap from blower shelf by gently pushing tabs inwardand rotating trap.3. Remove casing hole f

CONDENSATE TRAP LOCATIONThe condensate trap must be removed from the factory-installedblower shelf location and relocated in selected application loca