Carrier 19XB specifications Relief Devices

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Table 4 Ð Relief Devices

	STORAGE	RELIEF VALVE		REQUIRED FACTOR
	TANK SIZE	OUTLET SIZE	QUANTITY	lb air	Kg air
				min	min

	28	1 in. NPT	2	31.4	14.2
		Female Connector

	52	1 in. NPT	2	52.3	23.7
		Female Connector

LEGEND

Ground

Field Wiring

Factory Wiring

Contactor Term.

Overload Term.

Pumpdown Term.

Pumpdown Comp'r.

Term.

Fig. 7 Ð 19XB Pumpout System Wiring Schematic

LEGEND

CÐ Contactor

Fu	Ð	Fuse, 3 Amps
HP	Ð	High-Pressure Cutout

LÐ Compressor Motor Voltage Line (3-phase)

LL Ð Low-Line Control Voltage (single-phase)

OL	Ð	Compressor Overload
T'stat	Ð	Internal Thermostat

*Bimetal thermal protector imbedded in motor winding.

Compressor Terminal

Contactor Terminal

Overload Terminal

Pumpout Unit Terminal

Fig. 8 Ð Pumpout Unit Wiring Schematic

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Contents Installation, Operating, and Maintenance Instructions Safety ConsiderationsInstallation ContentsIntroduction Refrigerant LRA Assembly no Positive Pressure System Assembly NumbersRLA Tank Number 19XB Positive Pressure Storage System 19EA Pumpout Unit Typical Chiller Mount Trade Size QTY LocationTank Size Storage Center of Gravity Empty WeightEnglish Maximum Refrigerant Capacity lb 19XB Storage Tank Rated Dry Weight and Refrigerant Capacity Tank OD DRY Weight Size Code ASHRAE/ANSIPPS Contact Surface and Dimensions Trade QTY Location SizeSize Condenser Water Cooling ConnectorsConnection Refrigerant Transfer ConnectionsRelief Devices Controls and Components High Condition Pressure Switch SettingsRefrigerant HIGH-PRESSURE Switch OperationPumpout Unit Valve ConditionValve Locations for 19XB Pumpout Unit With 19XB Storage Tank Valve Locations for 19XB Pumpout Unit Without Storage Tank Maintenance Freeze-up Leak test to ensure chiller vessel integrityISO Carrier Refrigerant Specification TroubleshootingTroubleshooting Symptom Probable Cause Remedy