Install Instructions

6
Ratings
Installation & Service Manual
Notes:
1. Copper-fins require special gas venting. Use only the vent
materials and methods specified in the Installation and
Service Manual.
2. The Copper-fin is orificed for operation up to 2000
feet altitude. The ap pli ance will be derated 4% per 1000
feet above 2000 feet el e va tion. Consult the factory for
installations above 2000 feet elevation.
Figure B High Altitude Label Location
UNIT EQUIPPED FOR
HIGH ALTITUDE
UP TO 2000 FT.
Copper-fin Specifications
Model Number
Note: Change “N” to
“L” for L.P. gas models
Input
MBH
Water
Content Gallons
Water Connections Gas Connections
Vent Size
(Note 1)
CWN090 90 1.0 2" 1/2" 5"
CWN135 135 1.0 2" 1/2" 6"
CWN180 180 1.1 2" 3/4" 7"
CWN199 199 1.1 2" 3/4" 7"
CWN225 225 1.1 2" 3/4" 7"
CWN270 270 1.1 2" 3/4" 8"
CWN315
315 1.2 2" 3/4" 8"
CWN360
360 1.2 2" 1" 9"
CWN399
399 1.3 2" 1" 10"
CWN500
500 1.4 2" 1" 10"
HLW
Maximum allowed working pressure is located on the rating plate.
NOTICE
LOW LEAD CONTENT