Venting (Specifications And Vent Runs); Water Piping - Bosch Compress 3000 Instruction Manual

5 " ½
Fig. 6
A 27" minimum vertical clearance is required to remove
the filter for cleaning and to replace the anode rod. The
hot and cold water plumbing and electrical connections
must not interfere with the removal of the filter.
Fig. 7
Condensation drain
The unit has a condensate drain, therefore a drain must
be available in close proximity to the unit. The drain must
be no higher than 36" above the floor (laundry drain is
acceptable).
If no drain is available, then a common condensate
pump with a capacity no less than 1 gallon/day must be
purchased from a local builder and supply store and
installed.
3.3 Venting (specifications and vent
runs)
Venting the outlet air of the water heater to another
room may be an option for specific applications. See
Section 3.6.
• Duct diameter: 8"
• Maximum outlet duct length: 16.5 feet
• Maximum Air flow: 219 CFM
• Maximum no. of elbows: 1.
The vent collar accessory (see Fig. 2) must be installed
in order to accommodate the required 8" diameter vent
pipe. Line up tabs on vent collar with slots in vent
opening. Rotate to lock into place.
If terminating venting to the outdoors, pitch horizontal
pipe downward towards termination 1/4" per foot to
avoid damage from rain.
6 720 646 804
5 " ½
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3.4

Water piping

3.4.1 Inlet - Outlet connections
Refer to the illustration below for suggested typical
installation. The installation of unions or flexible copper
connectors is recommended on the hot and cold water
connections so that the water heater may be easily dis-
connected for servicing if necessary. The HOT and
COLD water connections are clearly marked and are
¾"NPT on all models.
Install a shut-off valve in the cold water line
i
near the water heater. This will enable eas-
ier service or maintenance of the unit later.
IMPORTANT: Do not apply heat to the HOT or COLD
water connections. If sweat connections are used,
sweat tubing to adapter before fitting the adapter to the
water connections on heater. Any heat applied to the
hot or cold water connection will permanently damage
the dip tube.
To electrical
distribution panel
Electrical junction box
(use only copper
conductors)
Temperature and
pressure relief valve
(shown in different
location for clarity)
Union
Hot water outlet
to fixtures
Union
To cold water
supply
Thermal expansion
tank (if required)
6' drain hose
Relief discharge
6" air gap
line to suitable
open drain
Fig. 8 Typical installation
3.4.2 Dielectric union (recommended acces-
sory)
Different metals between plumbing and tank materials
and additionally the effect of hot water can cause
corrosion of one of the metals (generally the one in the
tank is the metal attacked)
The Dielectric union will avoid any physical contact
between the two metals, acting as an effective insulator
and preventing this attack. How quick this corrosion
progresses, if at all, depends on the content of your
water, its pH, the dissolved minerals and the metals
involved.
Installation instructions
Jacket
access panel
Jacket
access panel
Auxiliary catch
pan 2" maximum
Drain valve
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