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VL SERIES STEAMERS - GENERAL
Pa
g
e 12 of 88
Handhole Cover Assembly ....... When unbolted and removed, allows internal examination and cleanin
g
of boiler shell and its components if required.
Boiler Pressure Gauge .......... Indicates the amount of steam pressure in the boiler.
Check Valve ................... On models with the delime pipin
g
assembly option, prevents the ejection
of hot water and steam out of the delime funnel if the manual delime fill
valve were to be opened.
Delime Port Assembly ........... On models with the delime pipin
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assembly option, allows the boiler and
other internal components to be delimed, easily removin
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calcium, lime
and rust build up.
Gas Pilot ..................... Should always remain lit to li
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ht the main burners upon a call for heat
unless the steamer will not be in use for an extended period. If the pilot
flame
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oes out, wait 5 minutes before reli
g
htin
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.
Gas Burners................... Heats the water in the boiler to
g
enerate steam.
Gas Combination Control Valve . . . A
g
as solenoid valve that opens to allow
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as flow when a call for heat is
made. Also re
g
ulates the manifold
g
as pressure and supplies the
g
as
pilot.
Transformer ................... Provides 24VAC power to i
g
nition control module. (
g
as models with
electronic i
g
nition)
Ignition Control Module ......... Controls and monitors
g
as heatin
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. Ener
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izes pilot valve coil to supply
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as to pilot,
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enerates spark to i
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nite
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as at the pilot, monitors the
presence of flame and ener
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izes main valve coil upon a call for heat to
supply
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as to the main burners. The pilot and main solenoids are part of
the
g
as combination control valve. (
g
as models with electronic i
g
nition)
Ignition Control Module
Reset (ON/OFF) Switch .......... Controls power to the i
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nition control module and allows a reset of the
module if the
g
as i
g
nition exceeds trial time. (
g
as models with electronic
i
g
nition)
Heater Contactor
(Electric Boilers) ............... When coil is ener
g
ized, supplies power to the electric heatin
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elements.
Heating Elements
(Electric Boilers) ............... Heats the water in the boiler to
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enerate steam.
Steam Header Assembly ......... Main steam supply line from the boiler to the steam header inlet in the
cookin
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control compartment.
Pressure Relief Valve ........... A mechanical device that opens to relieve steam pressure in the boiler if
the pressure exceeds 15 psi.
Compartment Pressure
Regulating Valve ............... Reduces steam pressure form the boiler or buildin
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steam (direct and
re
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enerated models) to supply the compartments a steam pressure of 6
psi. Standard on PS, option on MS, SS and AS compartment controls.