Lochinvar 402 - 2072 Ratings, NOTICE Notes, Copper-finII I=B=R Rating, Other Specifications

Ratings

Copper-fin II

I=B=R Rating

Model Number	Input		Gross	Net
			Output	I=B=R
	MBH		MBH	Ratings
	(Note 4)			Water,
				MBH
Note: Change “N” to
“L” for L.P. gas models.	Min	Max	(Note 1)	(Note 2)
CFN0402	250	399	339	295
CFN0502	250	500	425	370
CFN0652	250	650	553	481
CFN0752	250	750	638	555
CFN0992	360	990	842	732
CFN1262	360	1260	1071	931
CFN1442	360	1440	1224	1064
CFN1802	360	1800	1530	1330
CFN2072	630	2070	1760	1530
CHN0402	250	399	339	295
CHN0502	250	500	425	370
CHN0652	250	650	553	481
CHN0752	250	750	638	555
CHN0992	360	990	842	732
CHN1262	360	1260	1071	931
CHN1442	360	1440	1224	1064
CHN1802	360	1800	1530	1330
CHN2072	630	2070	1760	1530

Installation & Operation Manual

Other Specifications

Appliance			Air / Vent
Water	Water	Gas	Sizes
Content	Connections	Connections
Gallons			(Note 3)
1.6	2"	1-1/4"	6"
1.7	2"	1-1/4"	6"
2.0	2"	1-1/4"	8"
2.1	2"	1-1/4"	8"
2.2	2-1/2"	2"	10"
2.6	2-1/2"	2"	12"
2.9	2-1/2"	2"	12"
3.3	2-1/2"	2"	12"/14"
3.6	2-1/2"	2"	12"/14"
1.6	2"	1-1/4"	6"
1.7	2"	1-1/4"	6"
2.0	2"	1-1/4"	8"
2.1	2"	1-1/4"	8"
2.2	2-1/2"	2"	10"
2.6	2-1/2"	2"	12"
2.9	2-1/2"	2"	12"
3.3	2-1/2"	2"	12"/14"
3.6	2-1/2"	2"	12"/14"

NOTICE

Notes:

Maximum allowed working pressure is located on the rating plate.

1.The ratings are based on standard test procedures prescribed by the United States Department of Energy.

2.Net I=B=R ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need be added for normal piping and pickup. Ratings are based on a piping and pickup allowance of 1.15.

3.Copper-fin II’s require special gas venting. Use only the vent materials and methods specified in the Copper-fin II Installation and Operation Manual.

4.The Copper-fin II is orificed for operation up to 2000 feet altitude, and including up to 4,500 feet, with no field adjustments. The appliance will de-rate by 4% for each 1000 feet above sea level up to 4,500 feet. Consult the factory for installations above 4,500 feet elevation.

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