– 6 –
WATER QUALITY STATEMENT
The fact that a water supply is potable is no guarantee that it is suitable for steam generation. Proper
water quality can improve the taste of the food prepared in the oven, reduce scale build-up or corrosion,
and extend equipment life. Local water conditions vary from one location to another and can change
throughout the year. The recommended water treatment for effective and ef
fi
cient use of this equipment
will vary depending on the local water conditions. Your water supply must be within the general guidelines
outlined in the chart below at all times during use of this machine or service issues not covered under
warranty may result.
Water hardness should be treated by removing the impurities (water softener with carbon block or de-
chlorinator and/or in-line water treatment). Low water hardness may also require a water treatment system
to reduce potential corrosion. Water treatment has been shown to reduce costs associated with machine
cleaning, reduce deliming and reduce corrosion of metallic surfaces.
Daily washing and rinsing of the cavity is required. In some cases it may be needed more than once a day
to prevent compounding of contaminants deposited inside cavity even with acceptable
fi
ltration. Failure
to wash and rinse down the cavity daily could result in damage of the oven cavity and interior parts. A
Reverse Osmosis water treatment system can be installed to eliminate chlorides or other contaminates
from the water if needed.
NOTE:
Failure to properly maintain water quality or preventative procedures for water can lead to issues
not covered under warranty.
WATER SUPPLY GENERAL GUIDELINES*
Supply Pressure (dynamic
fl
ow)
30-60 psig
Hardness
less than 3 grains (17.1 ppm = 1 grain of hardness)
Silica
less than 13 ppm
Chloramines**
zero
Chlorides**
less than 30 ppm***
Total Chlorine****
zero
PH
range 7-8
Un-Dissolved Solids
less than 5 microns
* Testing of water is always done AFTER water
fi
lter or water treatment used. Water quality does change
with usage and should be checked after idle times to see if the condition worsens.
** A carbon block
fi
lter system should always be used to remove Chlorine and Chloramine. If a water
softener is used, a carbon block is still required. Check with your local water treatment specialist for proper
sizing and replacement intervals for the carbon block cartridge.
*** If the Chlorides exceed 30 ppm and the oven is used more than 8 hours during the day in steam or
combination mode the cavity will require rinsing every 8 hours. Failure to do so will result in corrosion and
rusting of the oven cavity and interior parts. A Reverse Osmosis water treatment system can be installed
to eliminate chlorides from the water and reduce the hardness. Preventative washing and rinsing may be
needed more than once a day to prevent compounding of contaminants inside cavity.
**** Total Chlorine of 4.0 ppm is the max limit for the building water supply. A carbon block
fi
lter must still
be used to remove all Chlorine and Chloramines from the water. Failure to do so will result in corrosion
and rust in the cooking cavity which is not covered under warranty.
