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PLUMBING CONNECTIONS
WARNING: PLUMBING CONNECTIONS MUST COMPLY WITH APPLICABLE SANITARY, SAFETY
AND PLUMBING CODES.
Water Supply Connection
The water filter, provided, must be installed in the water supply line going to the filtered water inlet or
your steamer warranty may be voided. For incoming water supply line pressures, refer to the water filter
manual shipped with the water filter. Follow the recommendations contained in it. Water pressure to the
steamer should be 20 to 60 psi.
The water supply inlets are provided with
3
/
8
" (1.0 cm) compression fittings for
3
/
8
" O.D. copper tubing.
The water supply to the generator tank (filtered water) is separate from the water supply to the cooling
system (unfiltered water) where steam is condensed before entering the drain line. Filtered water may
be used for the generator; unfiltered water, for the cooling system.
Install line strainers (not provided). A manual shutoff valve for each supply line must be provided
convenient to the steamer.
We recommend treated water feeding the boiler inlet supply and untreated water feeding the cooling
system inlet. Hook-ups are labeled on the back of the steamer.
Water Requirements
Proper water quality can improve the taste of the food prepared in the steamer, reduce liming in the
steam generator and extend equipment life. Local water conditions vary from one location to another.
Ask your municipal water supplier for details about your local water supply before installation.
Recommended water parameters are included in the water filter manual shipped with the steamer;
follow the recommendations contained in it.
Presence of sediment, silica, excess chlorides or other dissolved solids may lead to a recommendation
for alternate form(s) of water treatment. Be sure to test the water with the test strip and register the
results using the registration card or by visiting vulcanhart.com.
Drain Connection(s)
Drain must be minimum 1
1
/
2
" (3.8 cm) IPS down, preferably
with one or two elbows only, maximum length 6 feet and piped
to an open-gap type of drain (Fig. 1). Drain pipe should be
either iron or copper. DO NOT use PVC pipe; PVC pipe may
lose its rigidity, or its glue may fail.
CAUTION: In order to avoid any back pressure in the
steamer, do not connect solidly to any drain connection.
Draining Requirements
Temperatures in the boiler can reach as high as 240°F
(116°C). Local codes will require that the temperature of the
drain water be 140°F (60°C) or lower. At the end of the day
when purging the boilers, some provision for lowering the
water temperature must be provided by the user or installer to
meet this code requirement.
Fig. 1
