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Carrier 40RMQ Ð Typical 40RMS Chilled Water Piping, Ð Fitting Requirements cont

Models: 40RM 40RMS 40RMQ

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Fig. 9 Ð Typical 40RMS Chilled Water Piping

Table 3 Ð Fitting Requirements (cont)

	UNIT	ACCESS	CONNECTION	CIRCUIT	FITTINGS REQUIRED²
	UNIT	HOLE NO.*	TYPE	CIRCUIT		(in.)
		HOLE NO.*	TYPE			(in.)
		5	Supply	Lower	21¤8	Long Radius Elbow
		5	Supply	Lower	21¤8	Nipple, 31¤2 L
					21¤8	Long Radius Elbow
					21¤8	Long Radius Elbow
		6	Return	Lower	21¤8	Nipple, 3 L
	40RMS				21¤8	Long Radius Elbow
	028, 034	7	Return	Upper	21¤8	Long Radius Elbow
		7	Return	Upper	21¤8	Nipple, 67¤8 L
					21¤8	Long Radius Elbow
					21¤8	Long Radius Elbow
		8	Supply	Upper	21¤8	Nipple, 117¤8 L
					21¤8	Long Radius Elbow
		1	Suction	Lower	13¤8	Street Elbow
		1	Suction	Lower	13¤8	Nipple, 3 L
					13¤8	Long Radius Elbow
		2	Liquid	Lower	5¤8	Street Elbow
		2	Liquid	Lower	5¤8	Nipple, 73¤4 L
	40RM				5¤8	Long Radius Elbow
	40RM				5¤8	Street Elbow
	034	3	Liquid	Upper	5¤8	Street Elbow
	034				5¤8	Nipple, 181¤2 L
					5¤8	Nipple, 181¤2 L
					5¤8	Long Radius Elbow
					13¤8	Nipple, 43¤16 L
		4	Suction	Upper	13¤8	Long Radius Elbow
		4	Suction	Upper	13¤8	Nipple, 191¤4 L
					13¤8	Nipple, 191¤4 L
					13¤8	Long Radius Elbow

*See Fig. 4 for access hole location by number.

²Fittings are listed in order from header or tee stub connection out to access hole in corner support post.

Chilled Water Piping Ð See Tables 1C and 1F for chilled water connection sizes. For ease in brazing, it is rec- ommended that all internal solder joints be made before unit is placed in ®nal position.

Knockouts are provided in the unit corner posts for 40RM and 40RMQ refrigerant piping; additional ®eld-fabricated ac- cess holes are required for 40RMS chilled water piping. See Fig. 4, which lists recommended knockouts and access holes to use for each 40RMS unit size.

To size, design, and install chilled water piping, consult the Carrier System Design manual. See Fig. 9 for an ex- ample of a typical installation. Recommended ®ttings are listed in Table 3.

To access 40RMS coil vents and drains, remove the unit side panel over the coil header. Vent and drain plugs are on the top and bottom of header, respectively. See the Service section for information on preventing coil freeze-up during winter.

Fig. 9 Ð Typical 40RMS Chilled Water Piping

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Carrier 40RMQ installation instructions Ð Typical 40RMS Chilled Water Piping, Ð Fitting Requirements cont

Contents

SAFETY CONSIDERATIONS CONTENTSPRE-INSTALLATION INSTALLATIONTable 1A Ð 40RM Physical Data, English Table 1B Ð 40RMQ Physical Data, English Table 1C Ð 40RMS Physical Data, English Table 1D Ð 40RM Physical Data, SI Table 1E Ð 40RMQ Physical Data, SI Table 1F Ð 40RMS Physical Data, SI Fig. 1A Ð Dimensions Ð Sizes UNIT WEIGHT Fig. 1B Ð Dimensions Ð SizesUNIT 40RM014UNIT WEIGHT Fig. 1C Ð Dimensions Ð Sizes 028,034UNIT 40RM028Fig. 3 Ð Typical Unit Positioning Fig. 2 Ð Model Number NomenclatureRefrigerant and Chilled Water Piping Access Ð Liquid Line Piping Typical Fig. 5 Ð Face-SplitCoil Suction andFig. 6 Ð Typical Evaporator Coil Connections 40RM, 40RMQHeat Pump Systems Fig. 8 Ð Filter Drier Requirements Ð38AQS012/40RMQ012 and 38AQS016/40RMQ016 Table 3 Ð Fitting Requirements Table 3 Ð Fitting Requirements cont Table 3 Ð Fitting Requirements cont Fig. 9 Ð Typical 40RMS Chilled Water PipingFig. 10 Ð Condensate Drains Fig. 11 Ð Drain Pan Slope AdjustmentSide Panel Removed Fig. 12 Ð Wiring and Service AccessFig. 13 Ð Fan Contactor Box and Terminal Block Cover Removed TypicalTable 4 Ð Electrical Data, Standard Motors Table 5 Ð Electrical Data, Alternate Motors Table 6 Ð Fan Contactor Coil Data Fig. 14 Ð Unit WiringFig. 15 Ð Typical Fan Discharge Connections for Multiple Fan UnitsFig. 16 Ð Duct Flange Installation SERVICESTART-UP Table 7 Ð Lubricant DataFig. 19 Ð Fan Motor Mounting Fig. 18 Ð Fan Shaft BearingFig. 20 Ð Fan Rotation Fig. 21 Ð Fan Pulley AdjustmentsFan Pulley Alignment Ð Align as follows 40RM Table 8D Ð Fan Motor Data, Alternate Motor Ð SI Table 8C Ð Fan Motor Data, Standard Motor Ð SITable 9A Ð Standard Drive Data, 60 Hz Ð English Table 9D Ð Standard Drive Data, 50 Hz Ð English Table 9C Ð High-StaticDrive Data, 60 Hz Ð EnglishTable 9F Ð High-StaticDrive Data, 50 Hz Ð English Table 9H Ð Medium-StaticDrive Data, 60 Hz Ð SI Table 9G Ð Standard Drive Data, 60 Hz Ð SITable 9J Ð Standard Drive Data, 50 Hz Ð SI Table 9I Ð High-StaticDrive Data, 60 Hz Ð SITable 9L Ð High-StaticDrive Data, 50 Hz Ð SI Table 9K Ð Medium-StaticDrive Data, 50 Hz Ð SIAIRFLOW AIRFLOW Legend and Notes for Table 10A and 10B AIRFLOW AIRFLOW Legend and Notes for Tables 10C and 10D Fig. 22 Ð Filter Removal/ReplacementPage Page Copyright 1995 Carrier Corporation A. Preliminary Information SPLIT SYSTEMS WITH 40RM/RMQ/RMS UNITSB. Pre-Start-Up START-UPCHECKLISTCHECK VOLTAGE IMBALANCE C. Start-Up