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MODEL C24EA - GENERAL
F35453 (July 2008)Page 3 of 68
GENERAL
INTRODUCTION
This manual is applicable to the models and ML
numbers listed on the cover page. Procedures apply
to all models unless specified otherwise.
Steam Cooking
Convection steamers offer an efficient way to
produce many foods in either small portions or larger
batches. Convection steam cooking will steam cook
fresh foods or will steam defrost and cook frozen
foods providing the maximum color, flavor and
nutritional value with the least expenditure of energy
and labor. The atmospheric steaming compartment
allows the operator to open and close the door
anytime during a cooking cycle. The generator
heating elements will shut off when the door is
opened then re-start when the door is closed.
MODELS COVERED
Model Designations (based on 2.5 inch pan
depth)
C24EA6 - Six pan (3 pans per compartment)
C24EA10 - Ten pan (5 pans per compartment)
SPECIFICATIONS
All C24EA steamers, with exception of 480V
steamers, are shipped pre-wired for 208/60/3
operation. Steamer heating element wiring change is
required if connecting to 208/60/1, 240/60/1 or
240/60/3 electrical service.
ELECTRICAL SPECIFICATIONS
Volts Phase
C24EA6 C24EA10
Total
KW
Amps
Total
KW
Amps
208 1 16.9 81 25.6 121
240 1 19.0 79 25.6 110
208 3 16.9 48 25.2 72
240 3 19.0 51 25.6 67
480 3 17.2 21 25.6 32
NOTES:
1. Voltage values are @ 60HZ.
2. Heating elements on three phase
machines are not wired as a balanced
load. The amps listed are the
maximum on any leg.
3. Total KW and amps include heat
exchanger elements.
WATER SUPPLY REQUIREMENTS
Supply pressure should be 20-60 psig
In line strainer for supply line
(Supplied)
Total dissolved solids (TDS)* less than 60 ppm
Total alkalinity less than 20 ppm
Silica less than 13 ppm
Total Chloride less than 4.0 ppm
PH factor 6.5 to 8
Undissolved Solids less than 5 microns
*17.1 ppm = 1 grain of hardness
Water hardness below 4 grains/gal requires water
treatment to reduce potential corrosion. Hardness
above 6 grains/gal should be treated by water
conditioner, water softener or in-line treatment.
Water Conditioning
It is recommended that a local water treatment
specialist be consulted before the installation of any
steam generating equipment.
Furnishing the steam generator with properly
conditioned water to reduce scale formation is
important. Scale formation will reduce steam output,
cause premature component failure and shorten
equipment life. Most water supplies contain scale
producing minerals such as calcium and magnesium.
As steam is generated, the minerals remain and
dissolve into the remaining water. As the
concentration of these minerals increases past a
certain point, they precipitate from the water and
coat the inside of the steam generator, heating
elements, thermostat bulbs and water level probes.
Because of the high temperature of these surfaces,
the precipitated minerals bake onto them and
become very difficult to remove.
This phenomenon causes several problems:
1. Reduces the heat transfer efficiency of heating
elements.
2. Causes premature failure of heating elements.
3. Water level probes will give false readings.
4. Temperature sensing bulbs will sense
temperature incorrectly.
These problems are common to any manufacturer's
steamer regardless of design, but they can all be
prevented by furnishing the steam generator with
properly conditioned water. Vulcan recommends the
water contain less than 60ppm of total dissolved
solids (TDS) and have a PH factor between 6.5 to 8.