Specifications

– 7 –
Drain Connection
The 1
1
/4" NPT (3.175 cm) threaded fitting on the condenser box must be extended to an open, air gap
type drain, with maximum length of 12 inches
(30.5 cm) to the open drain. Do not reduce the 1
1
/4"
(3.175 cm) drain piping throughout its length. Provide a suitable floor sink with a minimum depth of 12
inches
(30.5 cm). The floor sink is NOT to be directly under the boiler and should be at a distance so
that steam vapors will not enter the boiler from underneath.
Drain pipe should be either iron or copper. DO NOT use PVC pipe — PVC pipe may lose its rigidity
or glue may fail.
CAUTION: In order to avoid any back pressure in the boiler, do not connect solidly to any drain
connection.
WATER QUALITY
Before connecting the gas steam boiler to water, the water supply should be analyzed to make sure
specifications are met.
If the water supply fails to meet these specifications, it will be necessary to install a water conditioner
on the boiler cold water supply line. APPLIANCE FAILURE CAUSED BY INADEQUATE WATER
QUALITY IS NOT COVERED UNDER WARRANTY.
Water supplies vary from one location to another. A local water treatment specialist should be
consulted before installing any boiler or water conditioner.
Untreated water contains scale producing minerals which can precipitate onto the surfaces in the
boiler. Due to the temperatures in the boiler, the minerals can bake onto the surfaces and components.
This can result in early component failure and reduced product life.
Mineral scale on components causes several problems:
1. The surface of the boiler becomes coated with scale, reducing the heat transfer efficiency. This can
produce hot spots on the boiler and result in premature failure.
2. The water level probes become coated with scale. Scale will bridge across the probe insulator from
the metal extension which senses the water level in the boiler. Once this scale becomes wet, the
water level control is unable to maintain the proper water level in the boiler. This situation may
cause the boiler to fail if the boiler is not adequately covered by water.
Strainers or filters will NOT remove minerals from the water.
Sensors in the boiler use ions in the water to detect the water level.
Do not use distilled (fully demineralized or de-ionized) water. This
could provide a false reading.
CONNECTION OF COOKING EQUIPMENT TO THE BOILER
The connection point for the steam line to other equipment is a
3
/4"
NPT female fitting on the left side of the boiler near the top and
towards the rear. Remove the
3
/4" NPT pipe plug (Fig. 1) and use the
Piping Kit available from Vulcan-Hart.
Fig. 1
PL-41531-1
STEAM LINE CONNECTION
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