York 048 & 060 Electric Heater Cfm Limitations, Economizer/Motorized Damper And Rain Hood

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TABLE 3: ELECTRIC HEATER CFM LIMITATIONS

177820-YIM-A-0506

TABLE 3: ELECTRIC HEATER CFM LIMITATIONS

				MINIMUM SUPPLY AIR CFM
UNITMODEL SIZE NOMINAL
UNITMODEL SIZE NOMINAL	VOLTAGE			HEATER SIZE NOMINAL KW
TONS	VOLTAGE			HEATER SIZE NOMINAL KW
TONS
		5	7		10	15		20	30

	208/230-3-60	1100	1100		1200	1200		1300	-

3	460-3-60	-	1100		1200	1200		1300	-

	575-3-60	-	-		1200	1200		1300	-

	208/230-3-60	1300	1300		1300	1300		1300	-

4	460-3-60	-	1300		1300	1300		1300	-

	575-3-60	-	-		1300	1300		1400	-

	208/230-3-60	1600	1600		1600	1600		1600	1600

5	460-3-60	1600	1600		1600	1600		1600	1600

	575-3-60	-	1600		1600	1600		1600	1800

ECONOMIZER/MOTORIZED DAMPER AND RAIN HOOD

The instruction for the optional economizer/motorized damper and rain hood can be found in form 035- 07364-000. Use these instructions when field assem- bling an economizer rain hood onto a unit. The outdoor and return air dampers, the damper actuator, the damper linkage, the outdoor and return air divider baf- fles, and all the control sensors are factory mounted as part of the “Factory installed” economizer/motorized damper options.

POWER EXHAUST/BAROMETRIC RELIEF DAMPER AND RAIN HOOD

The instructions for the power exhaust/barometric relief damper and rain hood can be found in form 530.18- N1.10V.

All of the components, including the dampers, hard- ware, and mounting instructions are shipped in a single package external from the unit and must be field assembled and installed.

Power exhaust is only available as a field installed accessory.

ECONOMIZER AND POWER EXHAUST DAMPER SET POINT ADJUSTMENTS AND INFORMATION

Remove the economizer access panel from the unit. Loosen but do not remove the two panel latches. Locate the economizer control module, where the fol- lowing adjustments will be made.

Extreme care must be exercised in turning all setpoint, maximum, and minimum damper positioning adjustment screws to prevent twist- ing them off.

Check that the damper blades move smoothly without binding; carefully turn the Minimum Position Adjusting screw (found on the damper control module) fully clockwise and then set the thermostat indoor fan switch to the on position and then off, or energize and de- energize terminals “R” to “G”.

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