Bosch WR 400-7.K Series - DIMENSIONS

2 6 720 606 560
DIMENSIONS
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.).
* 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.
Figure 1
Size, mm Qt.
natural standart 34.28 kW 1.20 diam. 18
propane/LP (0-2,000 ft.) (117,000 Btu/hr) 0.79 diam. 18
natural high * 30.85 kW 1.20 diam. 18
propane/LP (2,000-4,500 ft.) (105,000 Btu/hr) 0.79 diam. 18
Main Burner Orifices
WR 400-7.K..
Model Type of Gas Altitude Input