York 048 & 060, BCH 036 Motors, Outdoor Coil, YIM-A-0506, Unitary Products Group

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MOTORS

177820-YIM-A-0506

the replacement filter must be the same as the replaced filter.

MOTORS

Outdoor fan motors are permanently lubricated and require no maintenance.

Indoor Blower Motor and Drive - The indoor blower motor features ball bearings that do not require periodic lubrication.

Perform all maintenance operations on the blower motor with electric power disconnected from the unit. Do not attempt to lubricate bear- ings with the unit in operation.

On an annual basis, check the motor for accumulations of dust, etc. that may block the cooling slots in the motor shell. Check for loose, damaged or misaligned drive components. Check that all mounting bolts are tight. Replace defective parts as required.

OUTDOOR COIL

Dirt should not be allowed to accumulate on the out- door coil surface or other parts in the air circuit. Clean- ing should be as often as necessary to keep coil clean. Use a brush, vacuum cleaner attachment, or other suit- able means. If water is used to clean coil, be sure elec- tric power to the unit is shut off prior to cleaning.

NOTE: Exercise care when cleaning the coil so that the coil fins are not damaged.

Unitary Products Group

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Contents SUNLINE SINGLE PACKAGE HEAT PUMP BCHINSTALLATION MANUAL CONTENTSCOOLING SEQUENCE OF OPERATION TABLE OF CONTENTSSEQUENCE OF OPERATIONS OVERVIEW LIST OF TABLES LIST OF FIGURESREFERENCE SAFETY CONSIDERATIONSGENERAL INSPECTIONLIMITATIONS INSTALLATIONINSTALLATION SAFETY INFORMATION PRODUCT NOMENCLATURECLEARANCES TABLE 1 UNIT APPLICATION DATA BCHLOCATION RIGGING AND HANDLINGFIGURE 2 - COMPRESSOR RESTRAINING BRACKET DUCTWORKCONDENSATE DRAIN FIGURE 1 - RECOMMENDED DRAIN PIPING COMPRESSORSFILTERS SERVICE ACCESSCOOLING / HEATING 24 VOLT THERMOSTAT TYPICAL POWER WIRINGTYPICAL CONTROL WIRING FIGURE 3 - TYPICAL FIELD POWER & CONTROL WIRINGTHERMOSTAT POWER AND CONTROL WIRINGTABLE 2 CONTROL WIRE SIZES OPTIONS/ACCESSORIESECONOMIZER/MOTORIZED DAMPER AND RAIN HOOD TABLE 3 ELECTRIC HEATER CFM LIMITATIONSENTHALPY SET POINT ADJUSTMENT FIGURE 4 - ENTHALPY SETPOINT ADJUSTMENTFIGURE 5 - HONEYWELL ECONOMIZER CONTROL W7212 MINIMUM POSITION ADJUSTMENTTABLE 4 CENTER OF GRAVITY ALL MODELS TABLE 5 BCH 4 POINT LOADS WEIGHT DISTRIBUTIONTABLE 6 BCH 6 POINT LOADS WEIGHT DISTRIBUTION FIGURE 6 - FOUR AND SIX POINT LOADINGTABLE 7 PHYSICAL DATA TABLE 8 OPERATING WEIGHTS LBSCOMPRESSORS Unitary Products Group None Unitary Products Group NOMINAL VOLTAGE TABLE 11 ELECTRIC HEAT CORRECTION FACTORSTABLE 12 VOLTAGE LIMITATIONS1 POWER SUPPLYDETAIL “B” FIGURE 8 - UNIT WITH ECONOMIZER RAINHOODDETAIL “A” TABLE 14 MINIMUM CLEARANCES FIGURE 10 - UNIT DIMENSIONS REAR VIEWFIGURE 11 - DISCONNECT/BLOWER ACCESS LOCATION TABLE 13 UTILITIES ENTRYUnitary Products Group Page Unitary Products Group Unitary Products Group TABLE 19 BELT DRIVE BLOWER MOTOR AND DRIVE DATA177820-YIM-A-0506 5.Afteradjusting,re-tightennutsA FIGURE 12 - BELT ADJUSTMENTTABLE 20 STATIC RESISTANCES PHASINGCOOLING SEQUENCE OF OPERATION OPERATIONFIGURE 13 - PRESSURE DROP ACROSS COIL SEQUENCE OF OPERATIONS OVERVIEWINTERMITTENT BLOWER COOLING OPERATION ERRORSECONOMIZER SINGLE OR DUAL WITH POWER EXHAUST HIGH-PRESSURELIMIT SWITCHFREEZESTAT SAFETY CONTROLSCOMPRESSOR PROTECTION LOW-PRESSURELIMIT SWITCHSAFETY CONTROLS TABLE 22 ELECTRIC HEAT ANTICIPATOR SETPOINTS TABLE 21 ELECTRIC HEAT LIMIT CONTROL SETTINGSTART-UPCOOLING HEAT ANTICIPATOR SETPOINTSPOST START CHECK LIST TROUBLESHOOTINGCOOLING TROUBLESHOOTING GUIDE OPERATING INSTRUCTIONSUnitary Products Group 177820-YIM-A-0506a.24 volts at the thermostat Y1 terminal TABLE 23 UNIT CONTROL BOARD FLASH CODES MAINTENANCENORMAL MAINTENANCE UNIT FLASH CODESUnitary Products Group MOTORSOUTDOOR COIL 177820-YIM-A-0506Products Unitary5005 Norman