Lochinvar 000 - 500 Installation & Service Manual page 6

Ratings
Model Number
Note: Change "N" to
"L" for L.P. gas models
CWN090
CWN135
CWN180
CWN199
CWN225
CWN270
CWN315
CWN360
CWN399
CWN500
Maximum allowed working pressure is located on the rating plate.
NOTICE
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.
installations above 2000 feet elevation.
6
Copper-fin Specifications
Input Water
MBH Content Gallons
90 .91
135 .95
180 .99
199 1.02
225 1.02
270 1.06
315 1.09
360 1.12
399 1.22
500 1.30
Consult the factory for
Installation & Service Manual
Water Connections Gas Connections
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
Figure B High Altitude Label Location
Vent Size
(Note 1)
1/2" 5"
1/2" 6"
3/4" 7"
3/4" 7"
3/4" 7"
3/4" 8"
3/4" 8"
1" 9"
1" 10"
1" 10"
UNIT EQUIPPED FOR
HIGH ALTITUDE
UP TO 2000 FT.