Bosch W 325 K**T1 Installation, Operation And Maintanance page 2

Instantaneous gas water heater
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DIMENSIONS
Figure 1
Maximum hydrostatic water pressure – 1.03 Mpa (150 p.s.i.)
Maximum recommend 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. Gallons/min) free discharge
Minimum recommended inlet water pressure for use with showers 30 p.s.i.g.
Dimensions in Milimetres (inches)
Model
A
400
W325
17 1/4"
440
W400
17 1/4"
Model
Type of gas
Natural
W325
Propane
Natural
W325
Propane
Natural
W400
Propane
Natural
W400
Propane
* The wall bracket is only required for the WR 325 K ... when mounted directly to combustible construction. The WR
400 K... T2 may be mounted directly to combustible construction.
** 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. – See page 8.
2
B
C
755
250
29 3/4"
9 3/4"
770
250
30 1/4"
9 3/4"
Altitude
standard
(0 - 2,000 ft.)
high**
(2,000 - 4,500 ft.)
standard
(0 - 2,000 ft.)
high**
(2,000 - 4,500 ft.)
D
E
155
85
6"
3 1/4"
155
85
6"
3 1/4"
Input
29.30kW (100,000Btu/hr)
27.83 kW (95,000Btu/hr)
26.37kW (90,000Btu/hr)
25.05 kW (85,000Btu/hr)
34.28 kW
(117,000Btu/hr)
30.85 kW
( 105,000Btu/hr)
F
G
130
410
320
5"
16 1/8"
12 5/8"
130
410
320
5"
16 1/8"
12 5/8"
Main Burner orifices
Size, mm
1.25 diam.
0.79 diam.
1.25 diam.
0.79 diam.
1.25 diam.
0.82 diam.
1.25 diam.
0.82 diam.
H
Qt.
14
14
14
14
16
16
16
16

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