Bosch WR430-7K - Manuel (Page 3)

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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 - 0.09 MPa (13 p.s.i.) no piping attached
Reccomended pressure for showers and domestic, 0.27 MPa (40 p.s.i.)
• 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 15.
EXTERIOR
TERMINATION
Model Type of Gas Altitude Input
Size, mm Qt.
natural gas 130 000 Btu/hr (38 kW) 1.20 diam. 18
propane/LP 125 000 Btu/hr (36.6 kW) 0.79 diam. 18
natural gas 117 000 Btu/hr (34.3 kW) 1.20 diam. 18
propane/LP 112 000 Btu/hr (32.8 kW) 0.79 diam. 18
WR430-7.K..
standard
(0 - 2 000 ft)
high *
(2 000 - 4 500 ft)
Main Burner Orifices