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

Also see for 58MSA Series: Service and maintenance instructions User manual Instruction manual Installation, start-up, and operating instructions Installation, start-up, and operating instructions

Carrier 58MSA Installation, Start-up, And Operating Instructions Manual Manual pdf 9 page image

3. Relief Port TubeRefer to Pressure Switch Tubing section for connectionprocedure.CONDENSATE TRAP FIELD DRAIN ATTACHMENTRefer to Condensate Drain section for recommendations andprocedures.PRESSURE SWITCH TUBINGOne collector box pressure tube (pink label) is factory connected tothe pressure switch for use when furnace is installed in UPFLOWapplications. This tube MUST be disconnected and used for thecondensate trap relief port tube. The other collector box pressuretube (green label) which was factory connected to the condensatetrap relief port connection MUST be connected to the pressureswitch in DOWNFLOW or HORIZONTAL RIGHT applications.NOTE: See Fig. 8 or 9 or tube routing label on main furnace doorto check for proper connections.Relocate tubes as described below.1. Disconnect collector box pressure tube (pink label) attached topressure switch.2. Use smaller diameter tube (factory-supplied in loose partsbag) to extend collector box pressure tube (green label) whichwas previously connected to condensate trap relief portconnection.3. Connect collector box pressure tube (green label) to pressureswitch connection labeled "collector box."4. Use remaining smaller diameter tube (factory-supplied inloose parts bag) to extend collector box pressure tube (pinklabel) which was previously connected to pressure switch.5. Route this extended tube (pink label) to condensate trap reliefport connection.6. Determine appropriate length, cut, and connect tube.7. Clamp tube to relief port connection.CONDENSATE TRAP FREEZE PROTECTIONRefer to Condensate Drain Protection section for recommenda-tions and procedures.Step 4—Horizontal Left (Supply-Air Discharge)ApplicationsA horizontal left furnace application is where furnace blower islocated to the right of combustion and controls section of furnace,and conditioned air is discharged to the left.CONDENSATE TRAP LOCATIONThe condensate trap must be removed from the factory-installedblower shelf location and relocated in selected application locationas shown in Fig. 2 or 10.To relocate condensate trap from the blower shelf to desiredlocation, perform the following:1. Remove 3 tubes connected to condensate trap.2. Remove trap from blower shelf by gently pushing tabs inwardand rotating trap.3. Install casing hole filler cap (factory-supplied in loose partsbag) into blower shelf hole where trap was removed.Fig. 10—Horizontal Left Tube ConfigurationA00215CONDENSATETRAPAUXILIARY "J" BOXPLUGCAPINDUCER HOUSINGDRAIN TUBE (VIOLET)COLLECTOR BOXDRAIN TUBE (BLUE)COLLECTOR BOX TUBE (PINK)RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR040, 060, AND 080 HEATING INPUT FURNACESCOLLECTOR BOXEXTENSION TUBECOLLECTOR BOXDRAIN TUBE(BLUE AND WHITE STRIPED)DRAIN TUBE COUPLINGCOLLECTOR BOXTUBE (GREEN)COLLECTORBOX EXTENSIONDRAIN TUBE9