Carrier 58MCA Installation, Start-up, And Operating Instructions Manual

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Carrier 58MCA Installation, Start-up, And Operating Instructions Manual Manual pdf 7 page image

CONDENSATE TRAP TUBING (ALTERNATE UPFLOWORIENTATION)NOTE: See Fig. 6 or tube routing label on main furnace door toconfirm location of these tubes.1. Collector Box Drain TubeConnect collector box drain tube (blue label) to condensatetrap.NOTE: On 17-1/2-in. wide furnaces ONLY, cut tube betweencorrugated sections to prevent kinks from occurring.2. Inducer Housing Drain Tubea. Remove and discard LOWER (molded) inducer housingdrain tube which was previously connected to condensatetrap.b. Use inducer housing drain extension tube (violet label andfactory-supplied in loose parts bag) to connect LOWERinducer housing drain connection to the condensate trap.c. Determine appropriate length, cut, and connect tube.d. Clamp tube to prevent any condensate leakage.3. Relief Port Tubea. Connect relief port tube (green label) to condensate trap.b. Extend this tube (if required) by splicing to small diametertube (factory-supplied in loose parts bag).c. Determine appropriate length, cut, and connect tube.CONDENSATE TRAP FIELD DRAIN ATTACHMENTRefer to Condensate Drain section for recommendations andprocedures.PRESSURE SWITCH TUBINGThe LOWER collector box pressure tube (pink label) is factoryconnected to the pressure switch and should not require anymodification.NOTE: See Fig. 5 or 6 or tube routing label on main furnace doorto check for proper connections.UPPER COLLECTOR BOX AND INDUCER HOUSING (UN-USED) DRAIN CONNECTIONSUpper Collector Box Drain ConnectionAttached to the UPPER collector box drain connection is afactory-installed corrugated, plugged tube (blue and white stripedlabel). This tube is plugged to prevent condensate leakage in thisapplication. Ensure this tube is plugged.NOTE: See Fig. 5 or 6 or tube routing label on main furnace doorto check for proper connections.Upper Inducer Housing Drain ConnectionAttached to the UPPER (unused) inducer housing drain connectionis a cap and clamp. This cap is used to prevent condensate leakagein this application. Ensure this connection is capped.NOTE: See Fig. 5 or 6 or tube routing label on main furnace doorto check for proper connections.CONDENSATE TRAP FREEZE PROTECTIONRefer to Condensate Drain Protection section for recommenda-tions and procedures.Step 3—Downflow ApplicationsA downflow furnace application is where furnace blower is locatedabove combustion and controls section of furnace, and conditionedair is discharged downwards.CONDENSATE TRAP LOCATIONThe condensate trap must be removed from the factory-installedblower shelf location and relocated in selected application locationas shown in Fig. 2, 7, or 8.To relocate condensate trap from the blower shelf to desiredlocation, perform the following:Fig. 7—Downflow Tube Configuration(Left-Hand Trap Installation)A94165PLUGCOLLECTOR BOXTUBE (GREEN)COLLECTOR BOXTUBE (PINK)COLLECTOR BOXDRAIN TUBE (BLUE& WHITE STRIPED)COLLECTOR BOXEXTENSION TUBECONDENSATETRAPINDUCER HOUSINGDRAIN TUBE (VIOLET)COLLECTOR BOXEXTENSION TUBECAPCOLLECTOR BOXDRAIN TUBE (BLUE)Fig. 8—Downflow Tube Configuration(Right-Hand Trap Installation)A94166PLUGCOLLECTOR BOXTUBE (GREEN)COLLECTOR BOXTUBE (PINK)COLLECTOR BOXDRAIN TUBE (BLUE& WHITE STRIPED)COLLECTOR BOXEXTENSIONDRAIN TUBECONDENSATETRAPINDUCER HOUSINGDRAIN TUBE(VIOLET)COLLECTOR BOXEXTENSION TUBEDRAIN TUBECOUPLINGCOLLECTOR BOXDRAIN TUBE (BLUE)CAPCOLLECTOR BOXEXTENSION TUBE7