Bosch WR430-7K - Manuel (Page 12)

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DRIP TRAY
If the water heater is being mounted above a floor of
combustible construction the drip tray (shipped loose in the
carton with the water heater) must be attached to the bottom
of the front cover of the water heater at the time of
installation. The drip tray should be attached to the front
cover, using screws provided, as shown in Figure 3.
Failure to use drip tray when installing unit above a floor of
combustible construction will cause an unsafe condition and
possible fire and will be in violation of A.G.A. and C.G.A.
certification of the unit.
Water valve and S-bends, top view
WATER CONNECTIONS
The BOSCH instantaneous water heaters are provided with
two S-bend water connectors/adaptors that must be
connected to inlet and outlet connections on water valve
assembly, see Figure 4, below.
Figure 4
The purpose of the S-bend water connectors/adaptors is to
provide threaded water connections that meet standards
used in North America, ANSI Standard Taper Pipe Thread
(1/2” NPT). The cold water supply should be connected to
S-bend attached to inlet of water valve and the hot water
connection should be made to S-bend attached to the outlet
of water valve.
If plastic piping is to be used, a 1.5 meter (approx. 5 feet)
length of metal piping must first be attached to both the
cold water inlet and hot water outlet of the water heater.
Note: A shut-off valve should be placed in the cold water
supply line to the heater to facilitate servicing the
heater.
SCREWS
INCANDESCENT PARTICLE TRAY
Figure 3