Bosch W 125 T1 Operating & Maintenance Instructions page 2

DIMENSIONS
Figure 1
Maximum hydrostatic water pressure - 0.97 MPa (150 p.s.i.)
Maximum recommended working pressure - 0.69 MPa (100 p.s.i.)
Minimum working pressure - 0.01 1 MPa (2 p.s.i.) at 1.6 Litres/min. (0.5 U.S. Gal/min.) free discharge
Minimum recommended inlet water pressure for use with showers 40 p.s.i.g.
NG
Tap pressure inch
Manifold burner pressure inch
Dimensions in millimetres (inches)
A B
270 610
(10 5/8) (25 3/8)
Model
W 125 K...
W 125 K...
* The high altitude ratings listed are Canadian Gas Association high altitude ratings and are only valid in Canada.
In the U.S., the National Fuel Gas Code, ANSI Z223. 1 /NFPA 54 recommends for high altitude installations above
2,000 feet, that the input rate be reduced 4% for each 1,000 feet above sea level.
2
Altitude
Standard
5,7
3,35
C D
230 190
(9 1/8) (7 1/2) (2 3/4)
Type of Gas
natural
propane (0-2,000 ft.)
natural
propane (2,000-4,500 ft.)
LPG
High
4,6 Tap pressure inch
2,7 Manifold burner pressure inch
E F
70 562 350
(22 1/8) (13 3/4)
Altitude Input
standart 11.7 kW
(40,000 Btu/hr)
high * 10.5 kW
(36,000 Btu/hr)
Standard
10,5
10,2
G H
312 102
(12 1/4) (4)
Main Burner Orifices
Size, mm
1.25 diam.
0.76 diam.
1.25 diam.
0.76 diam.
Altitude
High
8,4
8,1
J M
138
(5 3/8)
Qt.
6
6
6
6