Hussmann MBC, MBCR Installation And Service Instructions Manual
January 2006
INSTALLATION & SERVICE
INSTRUCTIONS
FOR
MBC MULTI-DECK
GONDOLA INSERT
First Call for help (US and Canada):
1-800-922-1919
Soporte Tècnico y Asistencia (Mèxico):
01-800-522-1900
For a Service Network Locator and other
Information visit us at
www.hussmann.com
select Worldwide Locations
HUSSMANN - GLOVERSVILLE
P/N OII – MBC
January 2006
SETTING MBC TEMPERATURE CONTROL
1. Hold down top button until R-1 appears
2. Go to R-5, push both buttons, set to F, push both again
3. Go to D=3, push both buttons, set to 6, push both again
4. Go to D-4, push both buttons, set to 30, push both again
5. Go to R-1, push both buttons, set to 8, push both again
6. Go to R-2, push both buttons, set to 45, push both again
7. Go to R-3, push both buttons, set to 30, push both again
Wait for actual temperature to appear. Push both buttons and set to 32.0. Push both
again. Push both a third time and let flash until it stops flashing.
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TABLE OF CONTENTS
Model Description Page 4
Application Page 4
Inspection upon Receipt Page 4
Shipping Page 4
Leveling Page 5
Location Page 5
Rear Close-Off Panel Page 5
Condensate Removal – Self Contained Page 5
Installing drip piping – Remotes Page 5
Exterior loading, Interior loading Page 6
Care and Cleaning Page 6
Electrical Page 7
Refrigeration, Expansion Valve Adjustment, Refrigerant Page 7-8
Multiplexing, Line Sizing, Oil Traps, Pressure Drop Page 8
Insulation Page 9
Controls and Adjustments Page 9
Temperature Controls Page 10
EKC Controls and Info Page 13
Controller Application setting parameters (if needed) Page 14
Warranty and Parts Information Page 11
Compressor Replacement Procedure Page 11
MODEL DESCRIPTION –
This instruction manual covers the merchandisers listed below. All models are available
in 36” or 48” lengths.
MBC – Self-Contained Self Service
Beverage Case
MBCR – Remote Self Service Beverage
Case – Remote case requires a separate
condenser unit connection.
APPLICATION -
The MBCR and MBC refrigerated merchandisers are designed for use only in air conditioned stores where temperature and humidity
are maintained at or below 75ºF dry bulb temperature and 55% relative humidity.
These Beverage Cases are intended for the
storage and display of non -potentially hazardous,
bottled or canned products only.
INSPECTION UPON RECEIPT –
All equipment should be thoroughly examined for shipping damage before and during unloading. This equipment has been carefully i nspected at our factory and the carrier has assumed responsibility for safe arrival.
If damage, either apparent or concealed, is
found a claim must be submitted to the ca rrier.
Apparent Loss or Damage – If there is obvious loss or damage, it must be noted on the
freight bill or express receipt and signed by the
carrier’s agent; otherwise, the carrier may refuse
the claim. The carrier will supply necessary
forms.
Concealed Loss or Damage – When loss
or damaged is not apparent until after equipment is uncrated, a claim for concealed damage
is made.
Upon discovering damage, make a request in writing to the carrier for inspection
within 15 days and retain all packing. The ca rrier will supply the inspection report and r equired claim forms.
SHIPPING –
Move the fixture as close as possible to
its permanent location and then remove all
crating. Check for damage before discarding
packing. Remove all separately packed accessories such as kits and shelves.
LEVELING –
Merchandisers must be installed level to
ensure proper operation of the refrigerant sy stem and to ensure proper drainage of defrost
water.
Levelers are shipped with the case and
should be installed in the same holes that the
skid bolts were installed in.
Place pry-bar under metal base and lift. DO
NOT LIFT END PANEL. Turn leveler, with
wrench clockwise to raise, and counter clockwise to lower. Repeat process with other levelers until case is level.
NOTE: To avoid removing concrete flooring,
begin lineup leveling from the highest point of
the store.
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LOCATION –
Like other open merchandisers, these are
sensitive to air disturbances. Air currents pas sing around merchandisers will seriously impair
their operation. Do NOT allow air conditioning,
electric fans, open doors or windows, etc. to create air currents around the merchandisers.
REAR CLOSE- OFF PANEL –
To perform electrical and refrigeration
work, remove the rear closure panel by removing
the sheet metal screws. Replace when work is
complete.
NOTE: Self Contained Models - Do note block
the vent openings on the rear closure panel.
These allow intake and exhaust air for the condensing unit. Vents only appear on selfcontained models.
CONDENSATE REMOVAL – Self Contained
On the self contained merchandisers the
waste outlet is centrally located and accessible
from the rear of the case.
The condensate water from the evaporator
drains out through the bottom of the evaporator
compartment into the condensing unit area into
a heated condensate pan.
The pan has a float that activates the
heater when sufficient water is in the pan.
INSTALLING DRAIN PIPING – Remotes
Poorly or improperly installed drip pipes
can seriously interfere with the merchandisers’
operation and result in costly maintenance and
product losses. Please follow the recommendations listed here when installing drip pipes to ensure proper installation.
1. Never use drip piping smaller than the
nominal diameter of the pipe or water
seal supplies with the merchandiser.
2. When connec ting drip piping, the “water
seal” must be used as part of the drip piping to prevent air leakage or insect e ntrance. Never use two water seals in series
in any one drip pipe. Double water seals
in series will cause an air lock and prevent
draining.
3. Pitch the drip piping in the direction of
flow. There should be a minimum pitch of
1/8” per foot
4. Avoid long runs of drip piping. Long runs
make it impossible to provide the pitch
necessary for good drainage.
5. Provide a suitable air break between flood
rim of the floor drain and outlet of drip
pipe.
6. Prevent drip pipes from freezing:
a. Do not install drip pipes in contact
with insulated suction lines. Suction
lines should be insulated with a nonab-
sorbent insulation material.
b. When drip pipes are located in dead
air spaces, such as between merchandisers or between a merchandiser and
a store wall, provide means to prevent
freezing.
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EXTERIOR LOADING –
Do NOT walk on top of merchandiser or
damage to the merchandiser and serious personal
injury could occur. They are not structurally designed to support excessive external loading such
as the weight of a person.
INTERIOR LOADING –
In order to maximize product life, maintain a constant and proper product temperature
from the time the product is received through
storage, preparation and display.
Products should not be placed in merchandisers until all refrigeration controls have been
adjusted and merchandisers are at proper ope rating temperature. Again, air discharge and return air flue MUST be unobstructed at all times
to provide proper refrigeration.
CARE and CLEANING –
Long life and satisfactory performance of
any equipment is dependent upon the care it receives. To ensure long life, proper sanitation and
minimum maintenance costs, merchandisers
should be thoroughly cleaned, all d ebris removed
and the interiors washed down, weekly.
Exterior Surfaces –
The exterior surfaces must be cleaned with
a mild detergent and warm water to protect and
maintain their attractive finish. NEVER use
abrasive cleansers or scouring pads.
CAUTION – Shut power off during cleaning.
DO NOT USE –
• Mineral oil based solutions, as these will di s-
solve the butyl sealants used in the constructions of the merchandisers.
• Abrasive cleansers and scouring pads, as
these will mar the finish.
DO –
• Remove the product and all loose debris
to avoid clogging the waste outlet.
• Thoroughly clean all surfaces with soap
and hot water. Do NOT use steam or
high water pressure hoses to wash the
interior. These will destroy the merchandisers’ sealing causing leaks and
poor performance.
• Rinse with hot water but do NOT flood.
Never introduce water faster than the
waste outlet can remove it.
NOTE – Self-contained Models
The evaporator pan must be monitored for overflow conditions. Provide
drainage if necessary. After cleaning and
rinsing, purge the pan of any standing w ater.
• Care should be taken to minimize direct
contact between fan motors and cleaning
or rinse water.
• Allow the merchandisers to dry before
resuming operation.
At the back of this booklet there is a supplement for sealing and cleaning of this unit.
Please read for further instructions.
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