Hussmann DSF Installation And Operation Manual page 6

IGSV-DSF, DSFM-0303
case, and flushing with a hose.
**IMPORTANT INFORMATION**
The ASCS is capable of maintaining superb product qual-
ity with the installation of the proper controlling devices.
These devices should be set according to the Hussmann's
specifications. The humidity system should be properly
maintained. Incorrect settings and failure to maintain the
humidity system will result in short product life. Below
are a few guidelines for optimum performance and prod-
uct life:
• Set thermostat to cut in at the discharge tempera-
ture designated in the case specifications section
of the appropriate installation guide or spec. sheet.
Maintain the recommended product temperature
for Deli, Meat, and Fish. DO NOT set temperature
too cold, as this causes product dehydration.
• Temperatures should be achieved by means of a T-
Stat and Suction Solenoid at each case. DO NOT
use EPR valves, Liquid Line Solenoids, or electronic
control devices of any kind. These controls allow
temperature swings that cause dehydration and
excessive energy consumption.
• Set defrost cycles as listed in the Case Specifica-
tions Data for your particular case. The number of
defrosts per day should never change. The dura-
tion of the defrost cycle may be adjusted to meet
conditions present at your location.
• Clean humidity system a minimum of every 90
days for proper system operation.
• Work and rotate product - not to exceed a four
(4) hour period.
• At night, turn off case lights, and cover unwrapped
product with moistened cheesecloth or fabric
towels.
• Keep meat holding box at 32°F.
• Keep meat prep room refrigerated at 55°F.
• Meat Bloom Box (if applicable) should be at 36°F.
• Meat must enter the case at 40°F or below.
Product deteriorates rapidly above 40°F.
• Clean, sanitary conditions are required through-
out the meat holding, prep, and work areas.
• Do not display product directly within the air
discharge
• Turn and rotate meat. The blood works down
through the meat over time, which causes the top
surface to discolor and dehydrate. Turn meat 3-4
times per day.
• It is not required to remove product from case
overnight. Turn off case lights, and cover product
with moistened cheesecloth or fabric towel. This
helps slow down product dehydration, by taking
moisture from the cloth and not the product. This
is an old method used by meat shops for many
years, as it extends product life.
• Cold coils remove heat and moisture from the case
and deposit this as frost onto the coil. Thus a defrost
is required to remove this frost. Our humidity
system induces moisture into the case, and helps
slow down the dehydration process. The only other
moisture in the case is that which is in the product.
A single level of meat will dry out faster than a fully
loaded case with 3-4 levels of meat.
• The colder the case, the faster the product loses its
moisture and shelf life. It is very important to
maintain a constant, even, correct, product tempera-
ture.
HUMIDIFICATION SYSTEM HOOKUPS
Remove the raceway panel on the lower back of the case.
The pre-piped water shut-off valve and the water filter
are located on the left hand side of the case. The water
line (which is a 1/4" OD copper fitting) can be connected
to the ball shut-off valve, by means of a compression fit-
ting (supplied). The line should be one size larger than the
supply line. The line can then be run from one case to
another from within the raceway(s) using Tee connectors.
Before connecting the water to the humidity system, it is
best to purge the line to flush any debris that may clog the
water filter. If the water line requires purging after the
cases are hooked together, it is not necessary to check
each one. Simply shut ball valves to each humidity system,
remove the water line from the last case in the flow, and
purge. By doing this as a precautionary measure, you may
avoid problems and repeat servicing.
START-UP
Turn on the fan circuit. Check to see if the fan for the
humidity system is running. Remove the right hand bot-
tom pan (when facing the front of the case), then the TXV
cover. The fan is located up against the right hand side of
the case, as viewed from the front, under the fan plenum
(see diagram). View the blade, and make sure the fan rota-
tion agrees with the air flow arrows. Turn on the water, by
turning the ball valve in the direction of the flow (OFF is
at 90° to the direction of flow).
After a few minutes, check the spray header by sliding the
honeycomb to the left to expose the discharge tube lo-
cated on the right hand side of the case (when viewed
from the rear), by lifting the 4'-0" section of honeycomb
with both ends, until the bottom clears. Pull up and set
aside. The spray header will be exposed. Grasp the header
6