Filter System; Drain Connection; Gas Supply Connections - Vulcan-Hart ML-138085 Installation & Operation Manual

C24GA SERIES GAS CONVECTION STEAMERS
Note: If water lines move during water fill
valve operation then a water hammer
arrestors must be added.
A water filter system is recommended for the
water supply line going to the treated water
inlet. Follow the recommendations for use and
installation instructions shipped with the water
filter. If a water filter is not installed, the steam
generator warranty may be limited.
A manual shutoff valve must be provided in a
convenient location near the steamer.

Filter System

If you decide to not install a scale reducing
filter system design for steam equipment or
use another manufacturer's system other than
recommended by Vulcan, please use these
guidelines.
• If you are going to delime the unit with a
deliming agent recommended for a pressure
steam boiler and stainless steel generators
and you are on city or treated well water, you
still must have a carbon block filter installed
and maintained. Carbon block filters remove
the chlorine and chloramines disinfectants
from the water. Chlorine and chloramines will
erode the boiler or steam generator and will
result in a vessel failure which is not covered
under warranty.
• Water feed lines to the steamer must be
flushed before final connection. Particles
in the water could build up in the water and
steam valves or clog tubing and components
that maintain the water level and pressure
in the boiler or steam generator. If the water
supply is not free of sediment or cloudy after
several minutes of flushing, a sediment filter
must be installed before use.
• If you have purchased water filter system
from Vulcan, please follow the At the time of
installation you must register your steamer
at www.vulcanequipment.com or use the
reply card supplied with your unit. You will
need to register your steamer at each filter
change to insure your standard and extended
warranty is maintained.

Drain Connection

The 1½" NPT threaded fitting on the condenser
box must be extended a minimum of 12" (305
mm) - maximum of 72" (1829 mm) away from
steamer base, to an open air gap type drain. Do
not reduce the 1 ½" NPT drain piping throughout
its length. Provide a suitable floor sink with a
minimum depth of 12" (305 mm). The floor sink
is NOT to be directly under the steamer and
should be at a distance so that steam vapors
will not enter the steamer from underneath. The
drain should slope down away from the steamer
¼" for every foot of drain pipe length. The drain
pipe should be either iron or copper. DO NOT
use PVC pipe; PVC pipe may lose its rigidity or
glue may fail.
In order to avoid any back pressure in the
steamer, do not connect solidly to any drain
connection.
Temperatures in the generator can briefly reach
as high as 212°F (l00°C). Local codes may
require that the temperature of drain water be
no greater than 140°F (60°C). At the end of
the day, when purging the generators, some
provision for lowering the water temperature
must be provided by the user or installer to meet
this code requirement.

GAS SUPPLY CONNECTIONS

All gas supply connections and any pipe joint
compound used must be resistant to the action of
propane gas. A ¾" NPT minimum inside diameter
gas supply line is required. If quick disconnect
devices are used, make sure it is sized properly
for data plate BTU/hr. rating. Refer to quick
connect supplier's data sheet.
Codes require that a manual gas shutoff valve
be installed in the gas line ahead of the steamer.
The gas line must be capable of delivering gas
to the generator without excessive pressure drop
at the minimum rate specified on the rating plate.
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