2
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 40 p.s.i.g.
Dimensions in Milimetres (inches)
*
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.
Model
dimensions
A
B
D
E
F
milimetres
460
755
130 diam.
740
542
inches
18 1/8
29 3/4
5 1/8 diam.
29 1/8
21 11/32
WR400 - 1
Size, mm
Qt.
standard
34.28 kW
1.20 diam.
18
(0 - 2,000 Pieds)
(117,000Btu/hr)
Propane/LP
0.79 diam.
18
high*
30.85 kW
1.20 diam.
18
(2,000 - 4,500 Pieds)
( 105,000Btu/hr)
Propane/LP
0.79 diam.
18
Main Burner Orifices
WR400
Natural
WR400
Natural
Model
Type of gas
Altitude
Input
