Market Forge Industries PREMIERE SERIES Installation Operation & Maintenance page 7

WATER QUALITY
The water supply connected to this steamer should con-
tain no more than 2.0 grains of hardness per gallon with
pH from 6.5 to 8.0. This degree of hardness and pH can
easily be obtained with the use of a properly maintained
water softener.
Water supplies vary from one location to another. A lo-
cal water treatment specialist should be consulted before
installing any steam generating equipment.
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 com-
ponent failure and reduced product life.
Mineral scale on components causes several prob-
lems:
1. The surfaces of the heating devices become coated
with scale, reducing the heat transfer efficiency. This
can produce hot spots on the heating elements 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 an electric heat-
ing element to fail if the element is not adequately
covered by water.
Strainers and filters will NOT remove minerals from the
water.
Refer to REMOVAL OF LIME SCALE DEPOSITS.
VENT HOOD
Some local codes may require the steamer to be located
under an exhaust hood. Information on the construction
and installation of ventilating hoods may be obtained from
Vapour Removal from Cooking Equipment, NFPA stan-
dard No. 96 (latest edition).
ELECTRICAL CONNECTIONS
WARNING
Disconnect electrical power supply and place
a tag at the disconnect switch to indicate that
you are working on the circuit.
Electrical grounding must be provided in accordance with
local codes or in the absence of local codes, with the
National Electrical Code, ANS/NFPA70, or the Canadian
Electrical Code, CSA C22-2, as applicable.
Use copper wire suitable for at least 200oFahrenheit
(90oCelsius). The steamer must be grounded. The wir-
ing diagram is located on the right side panel as you face
the steamer.
5
Installation Instructions
INSTALLATION