Manuals / Carrier / Household Appliance / Heat Pump

Carrier 50TFQ008-012 Typical Belt-DriveMotor Mounting for, Size, Indoor-FanPulley Adjustment

Models: 50TFQ008-012

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Fig. 39 — Typical Belt-Drive Motor Mounting for

To align the fan and motor pulleys: 1. Loosen the fan pulley setscrews.

2. Slide the fan pulley along the fan shaft.

3. Make angular alignment by loosening the motor from the mounting plate.

To adjust belt tension:

1. Loosen the fan motor mounting nuts.

2. Sizes 008 and 009 — Slide the motor mounting plate away from the fan scroll for proper belt tension (1/2-in. deflection with 5 to 10 lb of force) and tighten the mount- ing nuts (see Fig. 38).

Size 012 — Slide the motor mounting plate downward to tighten belt tension (1/2-in. deflection with 5 to 10 lb of force). Secure the motor mounting plate nuts. See Fig. 39.

3. Adjust the bolt and nut on the mounting plate to secure the motor in fixed position.

MOTOR MOUNTING

PLATE NUTS

Fig. 39 — Typical Belt-Drive Motor Mounting for

Size 012

Fig. 38 — Typical Belt-Drive Motor Mounting for					Fig. 40 — Indoor-Fan Pulley Adjustment
	Size 008 and 009				Fig. 40 — Indoor-Fan Pulley Adjustment
	Size 008 and 009
			Table 9 — Fan Motor Performance

UNIT	INDOOR-FAN		UNIT	MAXIMUM ACCEPTABLE			MAXIMUM ACCEPTABLE	MAXIMUM
50TFQ	MOTOR		VOLTAGE		CONTINUOUS BHP*		OPERATING WATTS	AMP DRAW
	Standard,		208/230					6.0
	Standard,		460		2.40		2120	3.0
	Alternate		460		2.40		2120	3.0
008	Alternate		575					3.0
			575					3.0
			208/230					11.7
			208/230					11.7
	High Static		460		3.70		3313	5.5
			575					5.5
			208/230					6.0
	Standard		460		2.40		2120	3.0
009			575					3.0
009			208/230					11.7
			208/230					11.7
	High Static		460		3.70		3313	5.5
			575					5.5
			208/230					6.0
	Standard		460		2.40		2120	3.0
			575					3.0
			208/230					8.6
012	Alternate		460		2.90		2615	3.9
			575					3.9
			208/230					17.3
	High Static		460		5.25		4400	8.5
			575					8.5

LEGEND

BHP — Brake Horsepower

*Extensive motor and electrical testing on these units ensures that the full horsepower range of the motors can be utilized with confidence. Using fan motors up to the horsepower ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

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Carrier 50TFQ008-012 specifications Typical Belt-DriveMotor Mounting for, Indoor-FanPulley Adjustment, Size 008 and

Contents

SAFETY CONSIDERATIONS Installation, Start-Upand Service InstructionsCONTENTS INSTALLATIONFig. 1 - Roof Curb Details Fig. 4 - Condensate Drain Piping Details Fig. 2 - Unit Leveling TolerancesFig. 3 - Condensate Drain Pan Side View Fig. 5 - Rigging Details Table 1 - Physical Data Fig. 6 - Base Unit Dimensions Fig. 7 - Power Wiring Connections Step 5 - Make Electrical ConnectionsTable 2 - Electric Heating Capacities VOLTAGE VOLTAGE VOLTAGE Step 6 - Adjust Factory-InstalledOptions Fig. 10 - Defrost Board Table 4 - Heat Anticipator SettingsOutdoor-AirDamper Installed Fig. 11 - Damper Panel with ManualFig. 13 - Optional Manual Outdoor-Air Fig. 14 - Outdoor Air Damper Position SettingFig. 12 - Outdoor-AirHood Details Damper with Hood AttachedTable 5 - PremierLink Sensor Usage Fig. 15A - PremierLink ControllerPremierLink Fig. 15B - PremierLink Controller InstalledFig. 16 - Typical PremierLink Controls Wiring Fig. 18 - Differential Enthalpy Control Sensor and Mounting Plate 33AMKITENT006Fig. 19 - EconoMi$er IV Component Locations Fig. 21 - Typical Access Panel LocationsFig. 23 - Indoor Coil Access Panel Relocation Fig. 20 - EconoMi$er2 Component LocationsFig. 24 - Outdoor-AirHood Construction Fig. 25 - Filter InstallationFig. 26 - EconoMi$er IV Wiring Fig. 30 - Return-AirPressure Drop Fig. 28 - Barometric Flow CapacityFig. 29 - Outdoor-AirDamper Leakage Table 7 - EconoMi$er IV Sensor Usage Table 6 - Supply Air Sensor TemperatureResistance Values Fig. 31 - Supply Air Sensor LocationFig. 32 - EconoMi$er IV Controller Potentiometer Fig. 33 - Outside Air TemperatureFig. 34 - Return Air Temperature or Enthalpy and LED LocationsFig. 35 - Enthalpy Changeover Set Points Fig. 37 - CO2 Sensor Maximum Range SettingAPPROXIMATE DRY BULB TEMPERATURE— F C Fig. 36 - EconoMi$er IV Control60 x .10 + 75 x .90 = 73.5 F Table 8 - CO2 Sensor Standard Settings Size Fig. 40 - Indoor-FanPulley AdjustmentFig. 39 - Typical Belt-DriveMotor Mounting for Fig. 38 - Typical Belt-DriveMotor Mounting forTable 10 - Fan Rpm at Motor Pulley Settings AIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesAIRFLOW Refer to page 43 General Fan Performance NotesGENERAL NOTES FOR FAN PERFORMANCE DATA TABLES Refer to General Fan Performance Notes belowPRE-START-UP START-UPOperating Sequence Fig. 41 - DX Cooling Temperature Control Example Fig. 42 - Economizer Temperature Control ExampleFig. 44 - Propping Up Top Panel SERVICEFig. 43 - Cleaning Outdoor Coil Fig. 45 - Separating Coil SectionsLubrication Fig. 49 - Cooling Charging Chart, 50TFQ012 TROUBLESHOOTINGFig. 48 - Cooling Charging Chart, 50TFQ009 SUPPLY-AIRINPUT - To check supply-airinput Circuit Breaker Table 28 - Heating and Cooling Troubleshooting Table 29 - EconoMi$er IV Input/Output Logic Fig. 51 - EconoMi$er IV Functional ViewINDEX Page I. PRELIMINARY INFORMATION START-UPCHECKLIST Remove and Store in Job FileTEMPERATURES III.START-UP