Carrier 19XB Storage Tank Rated Dry Weight and Refrigerant Capacity, Tank OD DRY Weight, Ansi

Table 3 Ð 19XB Storage Tank Rated Dry Weight and Refrigerant Capacity

English

			TANK OD	DRY WEIGHT*		MAXIMUM REFRIGERANT CAPACITY (lb)
SIZE CODE					ASHRAE/ANSI 15			UL 1963
			(in.)	(lb)
					R-22		R-134a	R-22	R-134a
	0428		24.00	2380	1842		1860	1704	1716
	0452		27.25	3460	3527		3563	3264	3286
					SI
			TANK OD	DRY WEIGHT*		MAXIMUM REFRIGERANT CAPACITY (kg)
SIZE CODE					ASHRAE/ANSI 15			UL 1963
			(mm)	(kg)
					R-22		R-134a	R-22	R-134a
	0428		610	1080	836		844	773	778
	0452		592	1569	1600		1616	1481	1491
			LEGEND
ANSI	Ð	American National Standards Institute
ASHRAE Ð American Society of Heating, Refrigeration,
		and Air Conditioning Engineers
UL	Ð Underwriters' Laboratories

*The above dry weight includes the pumpout unit weight of 210 lbs (95 kg).

Make Piping Connections Ð Figure 6 represents typi- cal pumpout unit/chiller piping connections. Standard con- nections for 1¤2-in. OD copper tubing are provided. Install the ®eld-supplied FPT tee with pipe plug in the piping as shown in Fig. 6. This tee is used for refrigerant charging.

NOTE: If any ®eld piping runs exceed 50 ft in length, use 7¤8-in. OD copper tubing to minimize pressure drop.

Pumpout unit water piping connections are shown in Fig. 6. Both connections are 1¤2-in. NPT (female). A shutoff valve should be installed in the water line. Provide a means for blowing water from the condenser coil at winter shut- down to prevent freeze-up damage. Refer to the Job Data for water piping particulars.

INSTALL VENT PIPING TO RELIEF DEVICES Ð The pumpout storage tank is factory-equipped with relief de- vices. Refer to Fig. 5 and Table 2 for size and location of the relief devices. Vent the relief devices to the outdoors in ac- cordance with ANSI/ASHRAE 15 Safety Code (latest edi- tion) for Mechanical Refrigeration and all other applicable codes. Relief devices are set to relieve at 300 psig (2068 kPa).

Refrigerant discharged into con®ned spaces can dis- place oxygen and cause asphyxiation.

1.If relief devices are manifolded, the cross-sectional area of the relief pipe must at least equal the sum of the areas required for individual relief pipes.

2.Provide a pipe plug near outlet side of each relief device for leak testing. Provide pipe ®ttings that allow vent pip- ing to be disconnected periodically for inspection of valve mechanism.

3.Piping to relief devices must not apply stress to the de- vice. Adequately support piping. A length of ¯exible tub- ing or piping near the device is essential on spring- isolated machines.

4.Cover the outdoor vent with a rain cap and place a con- densation drain at the low point in the vent piping to pre- vent water build-up on the atmospheric side of the relief device.

Make Electrical Connections Ð See nameplate on compressor of pumpout unit and Table 1 for motor electrical data. Wire unit according to the diagram inside the control box.

Fig. 7 is the wiring schematic for a complete system that includes the 19XB storage tank and the pumpout unit. Fig. 8 is the wiring schematic for the pumpout unit. Use this schematic for installations that do not include an auxiliary pumpout storage tank.

NOTE: Use copper conductors only.

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