Blodgett SC-E Series - Manual (Page 7)

OM-SC-E 5
Water quality & Treatment
It is essential to supply the steam generator with water that will not form scale. Even
though the steam generator/boiler is engineered to minimize scale formation, scale
development depends on the hardness of your water and the number of hours you
operate the equipment each day.
Most water supplies contain minerals which form scale. It is this scale which could lead
to an early component failure.
Your local water utility can tell you about the minerals in your water. The water going
to the steam generator should have between 30 and 40 parts per million (ppm) total
dissolved solids (TDS) and should have a pH (acidity rating) of 7.0 to 9.0. Please follow
these simple precautions:
1. The best way to prevent scale is to use a Water Treatment System which has been
specifically designed for steamers and combination ovens. Do not rely on unproven
water treatment systems sold for scale prevention and removal. They may not be
specifically designed to work with steamers and combination ovens.
2. A well-maintained water treatment system and a regular cartridge replacement
schedule is essential.
3. Using a Water Treatment System will provide longer steam generator/boiler life,
higher steam capacity, and reduce maintenance requirements. To avoid mineral
build up in the steam generator, blow down the generator after every 5 hours.
4. If you notice a slowdown in steam production or an increase in deliming, have the
steamer checked for scale build-up. This could be an indication that the water
treatment cartridges need replacing. Heavy scale reduces the unit’s ability to boil
water, and can even cause component failure.
MINIMIZE SCALE PROBLEMS BY INSTALLING AND MAINTAINING A WATER TREATMENT
SYSTEM AND BY DELIMING THE STEAMER REGULARLY.
The steamer features two separate water inlets — one for the steam generator/boiler
(treated water), the other for the spray condenser (untreated water). The second intake
will reduce treatment requirements resulting in significant savings.
The dual water connections are side by side on the rear of the unit. When seen from the
back of the unit, the treated water intake is on the right.
REAR VIEW