Repair manual

START-UP MAINTENANCE PROCEDURES — STEAM GENERATOR
IMPORTANT: These instructions must be
followed in order to prevent premature failure of
the steam generator.
START-UP:
1) Open the cabinet base door and close the drain valve if it is
open. (Red handle lever marked "blowdown".)
2) Rip the toggle switch on front of the cabinet console to
"ON" (up position). The red console light should then glow
and water will automatically begin filling the generator.
3) When the water level in the sight gauge glass (on the
generator) reaches approximately 2/3 full (after approximately
five minutes), depress the "ON" reset button or the console.
This will energize the electric heater elements or ignite the gas
burner, If the sight gauge glass shows no stabilized water
level, i.e.. the gauge glass is completely empty or completely
filled, have the generator serviced.
4) In approximately ten minutes you will notice the steam
pressure gauge, on the console, register the steam pressure
contained inside the generator.
5) Cooking may now begin. Refer to "Cooking" and
"Operating Procedure" data sheets for specific instructions.
MAINTENANCE:
1) At the end of each day's operation, while the generator is
pressurized, flip the console toggle switch to the "Blowdown "
position, open the door in the cabinet base and open the
generator's drain valve, (red handle). This "Blowdown"
procedure drains the water out of the generator and helps to
prevent lime scale formation. When the generator is empty,
flip the console toggle switch to the "OFF" position and dose
the generator's drain valve. It is recommended that the
generator be refilled with water after the "Blowdown" is
performed. This can be accomplished by flipping the toggle
switch to the "ON" position for a period of five minutes and
then returning the switch to the "OFF" position.
CAUTION: Service on the generator should only be
performed by a trained and experienced service
technician, thoroughly familiar with servicing steam
generators. No work should be done on the steam
generator while it is pressurized or hot. Be sure all energy
sources are shut oft before the start of any work.
2) Even though the "Blowdown" is performed faithfully each day,
it will still be necessary to periodically inspect the inside of the
generator. The generators hand hole plate should be removed at
regular intervals, so that it and the inside can be inspected. The
hand hole plate should be cleaned and examined each time it is
removed. If the hand hole plate is chipped or cracked, or over three
years old. install a new one. Replace the corrosion resistor(s) if
necessary, and chemically descale the generator if it is coated with
lime scale. A new hand hole gasket should always be installed.
3) It will be necessary to periodically have scale accumulations
removed from the inside of the steam generator. by a qualified
service technician. Generator descaling instructions are provided
on a separate data sheet Failure to periodically remove scale from
the inside of the generator will result in greatly reduced generator
life.
4) Every steam generator is equipped with at least one corrosion
resistor to reduce generator shell corrosion and scaling. This
corrosion resistor is sacrificial and must be replaced at regular
intervals just before it is entirely consumed. In areas where the
water is very hard. the feedwater must also be treated to remove the
harmful mineral content
Refer to separate data sheets for corrosion resistor servicing
instructions, feed water treatment information. and hand hole plate
servicing instructions.
5) Check the safety valve once a week while steam generator is
pressurized. Test by pulling safety valve extension wire. Valve
must open freely and snap closed when released. If it does not or if
it drips constantly, a new safety valve is needed.
6) If the steam generator is to be left idle for three months or more,
it should be drained and dried out and the hand hole plate left on.
7) Water level in the sight gauge normally should be about 2/3 full.
This level is maintained automatically.
Refer to separate data sheet or either mechanical or water fill
servicing instructions.
8) If gas fired. the lighting instructions are on the AGA rating plate.
Pilot burner is lit through hole in panel at bottom of steam
generator. This panel should never be left off as this will damage
the controls. Burners will not light without water in the steam
generator.
CLEVELAND RANGE CO., 1333 EAST 179th ST., CLEVELAND, OHIO 44110
Manufacuter reserves right of design improvement or modification, as warranted.