Carrier 19EX, 17 installation instructions Item no Torque, Ft-lb

NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section.

Fig. 8 Ð Typical Motor End View (19EX Shown)

To Separate Cooler From Utility Vessel

1.Remove condenser (see previous section).

2.Cut copper lines (Fig. 6, Items 6 and 8).

3.Unbolt liquid refrigerant line at ¯ange (Fig. 7, Item 3).

4.Connect rigging to all four corners of the cooler before lifting the unit.

5.Unbolt connections to the utility vessel (Fig. 6, Items 5 and 10).

To Assemble the Machine

1.Follow disassembly instructions (in reverse order) and bolt all ¯anges back together using a gasket sealant. The fol- lowing torque requirements are speci®ed:

2.All gasketed or O-ring joints which have been disas- sembled must be assembled using new gaskets and O-rings. These new gaskets and O-rings (along with gasket seal- ant, O-ring lubricant, and copper line couplings) are avail- able through your Carrier representative.

3.Braze all copper lines back together using a suitable braz- ing material for copper. Carrier recommends an AWS (American Welding Society) Classi®cation BCuP-2.

Do not tilt the compressor; oil is contained in the oil sump.

FIG.	ITEM NO.		TORQUE
		ft-lb		N-m
	3	580		786
6	1 or 4	170		230
	5 and 10	840*		1139*
7	1	380		515
	4 and 5	250		340
	1 and 6	280		380
8	2	170		230
	3	380		515
	5	71		96

Additional Notes

1.Use silicon grease on new O-rings when re®tting.

2.Use gasket sealant on new gaskets when re®tting.

3.Cooler, utility, and condenser vessels may be rigged ver- tically, as separate components. Rigging should be ®xed to all four corners of the tube sheet.

4.New gaskets, grease for O-rings, and gasket sealant for a complete take-apart operation are available in a kit. Con- tact your Carrier representative.

N-m Ð Newton Meters

*This torque is used to rig the entire machine. Once the machine is in place, if no further rigging is anticipated, the bolt torque can be reduced to 280 ft-lb (380 N-m).

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