OM-CC-E
5
Inspection and Unpacking
Your Convection Combo™ will be completely
assembled in a heavy shipping carton or wooden
crate, and attached to a skid. On receipt, inspect
the carton or crate carefully for exterior damage.
CAUTION
SHIPPING STRAPS ARE UNDER TENSION AND
CAN SNAP BACK WHEN CUT.
Carefully cut the straps around the carton and detach
the sides of the carton from the skid. Pull the carton
up off the unit. Be careful to avoid personal injury or
equipment damage from staples which might be left in
the carton walls.
Write down the model number, serial number and
installation date and keep this information for future
reference. Space for these entries is provided at the
top of the Service Log in the back of this manual.
CAUTION
THIS UNIT IS VERY HEAVY. YOU SHOULD GET
HELP AS NEEDED TO LIFT THIS WEIGHT
SAFELY.
When starting installation, lift the unit straight up off
the skid. Check packing materials to make sure
loose parts are not discarded with the material.
Water Conditioning
It is essential to supply the steam generator with
water that will not form scale. Even though the
steam generator is engineered to minimize scale
formation, scale development depends on the
hardness of your water and the number of hours you
operate the equipment.
In some areas, water is low enough in mineral
content to avoid scale formation. But most water
supplies are full of minerals which form scale. It is
this scale which could lead to an early component
failure.
Your 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.
Do not
rely on unproven water treatments
which are sold for scale prevention or scale
removal.
They don’t always work
. The best
way to prevent scale is to supply the purest
possible water (30 -40 ppm TDS).
2.
If your water contains scale-forming minerals, as
most water does, use a well-maintained water
softener. Whether an exchangeable softener
cartridge or a regenerating system is chosen, a
regular exchange schedule is essential.
Installing a water meter between the softener and
the steamer will provide an accurate gauge of water
use, and will help determine when to exchange
cartridges or regenerate the softener. Using a water
softener will provide longer generator life, higher
steam capacity, and reduce maintenance
requirements.
3.
If you notice a slowdown in steam production,
have the unit checked for scale build-up. Heavy
scale reduces the unit’s ability to boil water, and
can even cause heating elements in the steam
generator to overheat and burn out.
MINIMIZE SCALE PROBLEMS, BY USING AND
MAINTAINING A SOFTENER, AND BY CLEANING
THE STEAM GENERATOR REGULARLY.
Groen Convection Combo™ ovens are also available
with an option for two separate water connections —
one for the steam generator (soft water), the other
for the spray condenser (untreated water). The
steam generator only uses 14 to 31% of a
combination oven’s water.
Since softener systems are typically sized by total
GPH (gallons per hour), the second connection could
reduce treatment requirements by up to 80%,
resulting in significant savings.
