Bosch WR 400-7.K Series Installation & Operation Manual page 2

DIMENSIONS
Figure 1
Maximum hydrostatic water pressure - 1.03 MPa (150 p.s.i.)
Maximum recommended working pressure - 0.69 MPa (100 p.s.i.)
Minimum working pressure - 0.0138 MPa (2 p.s.i.) at 2 Litres/min. (0.5 U.S. gals./min.).
Model Type of Gas
natural
propane/LP
WR 400-7.K..
natural
propane/LP
* The high altitude ratings listed are Canadian Gas Association high altitude ratings and are valid only in Canada.
In the U.S., the National Fuel Gas Code, ANSI Z223. 1 -1988, recommends for high altitude installations above 2,000
feet, that the input rate be reduced 4% for each 1,000 feet above sea level. - See page 8.
2
Altitude
standart
(0-2,000 ft.) (117,000 Btu/hr)
high *
(2,000-4,500 ft.) (105,000 Btu/hr)
Main Burner Orifices
Input
Size, mm
34.28 kW 1.20 diam.
0.79 diam.
30.85 kW 1.20 diam.
0.79 diam.
Qt.
18
18
18
18
6 720 606 560