Carrier 19EX, 17 installation instructions Insulation Requirements, 11¤8 Foam Tubing 15¤8

Install Field Insulation

Protect insulation from weld heat damage and weld splat- ter. Cover with wet canvas cover during water piping installation.

When installing insulation at the job site, insulate the fol- lowing components (see Fig. 24 and Table 15):

·compressor motor

·cooler shell

·cooler tube sheets

·suction piping

·motor cooling drain

·oil cooler refrigerant side tubing

·utility vessel (low side)

Additional insulation of condenser and compressor com- ponents and lines may be necessary to prevent condensation on these components.

NOTE: Carrier does not provide waterbox insulation. Insu- lation of the waterbox covers must be ®eld supplied at the jobsite. When insulating the waterbox covers, allow enough room for removal of the waterbox covers during servicing.

FACTORY INSULATION (OPTIONAL) Ð Optional factory insulation is available for the evaporator shell and tube sheets, suction pipe, compressor motors, and refriger- ant drain line(s). Insulation applied at the factory is 3¤4 in. (19.0 mm) thick and has a thermal conductivity K value of

0.28	Btu	in.	(0.0404	W	°C). Insulation conforms
	hr ft2	°F		m

with UL Standard 94, Classi®cation 94 HBF.

Table 15 Ð Insulation Requirements

Sheet Foam Insulation

		COMPONENT		ft2	m2
	Cooler Shell (Sizes 31-33)			254	23.6
	Cooler Shell (Sizes 41-44)			306	28.4
	Cooler Shell (Sizes 45-48)			374	34.7
	Economizer Low Side Float Chamber			48	4.5
	Economizer Main Shell (with cooler sizes 31-44)			85	7.9
	Economizer Main Shell (with cooler sizes 45-48)			115	10.1
	Suction Line			25	2.3
	Cooler Marine Waterbox (1 or 3 pass, with			126	11.7
	frame-3 coolers)
	Cooler Marine Waterbox (2 pass, with			100	9.3
	frame-3 coolers)
	Cooler Marine Waterbox (1 or 3 pass, with			158	14.7
	frame-4 coolers)
	Cooler Marine Waterbox (2 pass, with			123	11.4
	frame-4 coolers)
	Cooler NIH Waterbox (with frame-3 coolers)			74	6.9
	Cooler NIH Waterbox (with frame-4 coolers)			88	8.2
	Main Motor Shell (with −51 through −89			27	2.5
	compressors)
	Main Motor Shell (with 421 through 469 compressors)			27	2.5
	Main Motor Shell (with 531 through 599 compressors)			41	3.8
		Foam Tubing Insulation
		TYPE	Ft	m
	11¤8	Foam Tubing	9	2.7
	15¤8	Foam Tubing	2	0.6
	2	Foam Tubing	9	2.7
5		Foam Tubing	14	4.3

NOTES:

1.Cooler value includes marine waterbox on one end (even-pass arrangement).

2.Values are approximate.

3.Thermal insulation is available as a factory-installed option. Waterbox in- sulation must be ®eld supplied.

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