VGM,VGD
Vertical Glass Service Deli, Meat, Fish Case
P/N VGM,VGD-0505
1
INSTALLATION & OPERATION GUIDE
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Rev. 0505
Important Information
The VGM / VGD service cases are easy to work, attrac-
tive merchandising display cases capable of maintaining
superb product quality, with the installation of the
proper controlling devices. These should be set according
to Hussmann’s specifications and combined with a
properly maintained humidity system. Incorrect settings
and failure to maintain the humidity system will result in
short product life from dehydration, shrinkage and
discoloration. Below are a few guidelines to ensure
optimum performance and product life.
tion solenoid at each case.Do not use EPR valves,liq-
uid line solenoids or electronic control devices of any
kind. These controls allow temperature swings
causing product dehydration and excessive
energy consumption.
Defrost cycles should be set according to the Case
Specifications in this book.
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.
Maintain sanitary conditions throughout the deli
holding, prep and working areas.
Do not display product directly within the air dis-
charge.
•
•
•
•
•
•
•
Review the Case Specification in this book to verify
thermostat setting. Do not set temperature too cold,
as this causes product dehydration.
Temperatures should be achieved by a t-stat and suc-
Cut & Plan Views
19 7/8
"
26 1/2
"
10"
14"
16"
35
29
28"
1
/
1
4
2
/
"
28"
"
Optional
Front
Deck
Light
32 3/4
"
T8 Front
Deck Light
31"
Lift Up Deck
For Easy Cleaning
4 1/4
"
1
4 1/4
"
11
/
4"
29 1/2
"
1
11
/
4"
29 1/2
45"
"
45"
VGD
Straight Glass Service Deli Case
VGM
Scale = 1/4"
Straight Glass Service Meat / Fish Case
Scale = 1/2"
8"
8"
WATER, ELEC.
WATER, ELEC.
DRAIN
& REFRIG.
MECHANICAL
MECH.
DRAIN
& REFRIG.
MECHANICAL
MECH.
STUB UP AREA
STUB UP
STUB UP AREA
STUB UP
19" X 19"
19" X 19"
AREA
19" X 19"
AREA
19" X 19"
CASE FRONT
CASE FRONT
1"
1"
1"
1"
8'-2"
(VARIABLE LENGTHS)
8'-2"
(VARIABLE LENGTHS)
VGM
VGD
Plan View
Scale = 1/4"
Plan View
Scale = 1/4"
3
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VGM, VGD-0505
Installation
L O C A T I O N
These steps should release any settled lubricant within
the cylinders, and prevent any stress on the front glass.
The refrigerated merchandisers have been designed for
use only in air conditioned stores where temperature
and humidity are maintained at or below 75°F and 55%
relative humidity. DO NOT allow air conditioning,
electric fans, ovens, open doors or windows (etc.) to
create air currents around the merchandiser, as this will
impair its correct operation.
Product temperature should always be maintained at a
constant and proper temperature. This means that from
the time the product is received, through storage,
preparation and display, the temperature of the product
must be controlled to maximize life of the product.
SETTING AND JOINING
The sectional construction of these models enable them
to be joined in line to give the effect of one continuous
display. A joint trim kit is supplied with each joint.
LEVELING
IMPORTANT! IT IS IMPERATIVE THAT CASES BE
LEVELED FROM FRONT TO BACK AND SIDE TO SIDE
PRIOR TO JOINING. A LEVEL CASE IS NECESSARY
TO INSURE PROPER OPERATION, WATER DRAIN-
AGE, GLASS ALIGNMENT, AND OPERATION OF THE
HINGES SUPPORTING THE GLASS. LEVELING THE
CASE CORRECTLY WILL SOLVE MOST HINGE OP-
ERATION PROBLEMS.
UNCRATING THE STAND
Place the fixture as close to its permanent position as
possible. Remove the top of the crate. Detach the walls
from each other and remove from the skid. Unbolt the
case from the skid.The fixture can now be lifted off the
crate skid. Lift only at base of stand!
NOTE: A. To avoid removing concrete flooring, begin lineup
leveling from the highest point of the store floor.
B.When wedges are involved in a lineup, set them first.
All cases were leveled and joined prior to shipment to
insure the closest possible fit when cases are joined in
the field. When joining, use a carpenter’s level and shim
legs accordingly. Case must be raised correctly, under
legs where support is best, to prevent damage to case.
EXTERIOR LOADING
These models have not been structurally designed to
support excessive external loading. Do not walk on
their tops; This could cause serious personal injury and
damage to the fixture.
1. Check level of floor where cases are to be set. De-
termine the highest point of the floor; cases will be
set off this point.
DANGER!
2. Set first case, and adjust legs over the highest part of
the floor so that case is level. Prevent damage – case
must be raised under leg or by use of 2x6 or 2x4 leg
brace. Remove side and back leg braces after case is
set.
3. Set second case as close as possible to the first case,
and level case to the first using the instructions in
step one.
4. Apply masking tape 1/8" in from end of case on inside
and outside rear mullion on both cases to be joined.
5. Apply liberal bead of case joint sealant (butyl) to dot-
ted area shown in (Fig.2,#1) of first case. Apply heavy
amount to cover entire shaded area.
DO NOT USE PERMAGUM!
IMPORTANT: READ BEFORE RAISING GLASS!
HEX SCREWS ALONG CLAMSHELL
MAY HAVE LOOSENED DURING
SHIPPING!! RETIGHTEN ALL
CLAMSHELL SCREWS BEFORE
OPENING GLASS!
RETIGHTEN GLASS AFTER CASE IS
BROUGHT TO OPERATING
TEMPERATURE FOR THE FIRST
TIME!
During shipment, the lubricant inside the cylinders may
have settled.This settling may cause excessive or uneven
tension on the glass—to the point of breakage.To avoid
any damage, please follow these three easy steps:
1. Slowly raise and lower each glass section 6 times to
a height of 6".
2. Increase the height to 12", and raise and lower the
glass 6 more times.
3. Finally raise the glass to it’s full extension, and lower.
It is the contractor's
responsibility to install
case(s) according to local
construction and health
codes.
4
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Rev. 0505
6. Slide second case up to first case snugly.Then level
second case to the first case so glass front, bumper
and top are flush.
7. To compress silicone at joint, use two Jurgenson
wood clamps. Make sure case is level from front to
back and side to side on inside bulkheads at joint.
8. Attach sections together via a 3 bolts located in the
base of the case. Secure the overhead structure by
bolting the rear mullions tegether.
Do not use bolts
to pull cases together!
9. Apply bead of silicone to top of bulkheads and slip on
stainless steel bulkhead cap. Also apply silicone to
seam between overhead light tubes.
10. VERY IMPORTANT! Apply liberal amounts of
black silicone to area under interior lower legs and
fill all voids down to bulkhead.
11. Use finger to smooth silicone as thin as possible at
masking tape on inside and outside of rear mullion
(apply additional silicone if necessary). Remove tape
applied on line #3.
BOLT
SEALANT
BOLT
Figure 2
DO NOT SEAL JOINT TRIM TO FLOOR!
5
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VGM, VGD-0505
Plumbing
1. Never use pipe for condensate drains smaller than
It is the contractor's
responsibility to install
case(s) according to local
construction and health
codes.
the nominal diameter of the pipe or P-trap supplied
with the case.
2. When connecting condensate drains,the P-trap must
be used as part of the condensate drain to prevent
air leakage or insect entrance. Store plumbing system
floor drains should be at least 14" off the center of
the case to allow use of the P-trap pipe section.
Never use two water seals in series in any one line.
Double P-traps in series will cause a lock and prevent
draining.
3. Always provide as much down hill slope (“fall”) as
possible;1/8" per foot is the preferred minimum.PVC
pipe, when used, must be supported to maintain the
1/8" pitch and to prevent warping.
WASTE OUTLET AND P-TRAP
The waste outlet is located off the center of the case on
one side allowing drip piping to be run lengthwise under
the fixture.
A 1-1/2" P-trap and threaded adapter are supplied with
each fixture.The P-trap must be installed to prevent air
leakage and insect entrance into the fixture.
NOTE: PVC-DWV solvent cement is recommended.
Follow the Hussmann’s instructions.
4. Avoid long runs of condensate drains. Long runs
make it impossible to provide the “fall” necessary for
good drainage.
INSTALLING
CONDENSATE
DRAIN
5. Provide a suitable air break between the flood rim of
the floor drain and outlet of condensate drain. 1" is
ideal.
6. Prevent condensate drains from freezing:
a. Do not install condensate drains in contact with
non-insulated suction lines. Suction lines should
be insulated with a nonabsorbent insulation ma-
terial such as Armstrong’s Armaflex.
Poorly or improperly installed condensate drains can
seriously interfere with the operation of this refrigerator,
and result in costly maintenance and product losses.
Please follow the recommendations listed below when
installing condensate drains to insure a proper installa-
tion:
T
B
B
WATER,
ELEC. &
b. Where condensate drains are located in dead air
spaces (between refrigerators or between a re-
frigerator and a wall), provide means to prevent
freezing.The water seal should be insulated to
prevent condensation.
DRAIN
MECHANICAL
STUB UP AREA
19" X 19"
C
L
REFRIG.
MECHANICAL
STUB UP AREA
19" X 19"
1.
DRAIN
CASE FRONT
CASE FRONT
T-STAT AND BALLAST LOCATIONS
6
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Rev. 0505
Humidification
connecting “L”, remove it from the case, and
flushing with a hose.
HUMIDIFICATION SYSTEM (WHERE APPLICABLE)
One contributor to spoilage of fresh meat and deli
products that are displayed in refrigerated service type
merchandisers is dehydration, which causes the product
to shrink and dry out. The humidification system is
designed to maintain a high relative humidity (RH) inside
Hussmann’s refrigerated service type merchandisers—
and minimize dehydration.
The humidification system is located on the back wall
under the rear discharge air grill of the VGM / VGD
FAMILY. It is imperative that the system be maintained as
per the instructions in the maintenance section. Buildup
of residue will cause leakage and/or unfavorable water
conditions. If the area’s water is hard, check the system
more frequently than under good water conditions.
IMPORTANT INFORMATION
The VGM / VGD case line is easy to work, and capable of
maintaining superb product quality with the installation
of the proper controlling devices.These should be set
according to the Hussmann’s specifications, and a prop-
erly maintained humidity system. Incorrect settings and
failure to maintain the humidity system will result in
short product life. Below are a few guidelines for opti-
mum performance and product life:
•
Set thermostat to cut in at 30º-32ºF discharge tem-
perature, to maintain a temperature for Deli, Meat,
and Fish at 36ºF. 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.
I N S T R U C T I O N S
Turn on water and fans, and check for leaks.This system
has been tested at the factory, and should not require
any additional adjustments.
The system is constructed almost entirely of PVC pipe,
and user air that is sub-cooled to approximately the
same temperature as the case.The sub-cooling of air
inhibits the formation of growth found to be a problem
in other humidification systems. Maintenance is almost
•
•
•
Clean humidity system a minimum of every 90 days for
proper system operation.
Work and rotate product - not to exceed a 4-hour
period.
At night, turn off case lights, and cover product with
moistened cheese cloth or fabric towels.
Keep meat prep room refrigerated at 55ºF.
Meat Bloom Box (if applicable ) should be at 30ºF.
unnecessary if you follow a few simple rules:
1. Keep the case clean.
•
•
2. Keep the water filter clean, and change it every 6-
12 months, depending on the kind of water found
in your area.
HUMIDITY SYSTEM as viewed from the front.
NOTE:The axial fans included in the humidity system
3. Flush the header every 6 months, by loosening the must be replaced as a unit. Humidity Out-Put - 1/2 gallon
1/8" 100 X 1/8FPT
SW ADAPTER
225-01-3220
per hour per nozzle. One (1) nozzle in all VGMs.
1/4" 100 X 1/8FPT
SW ADAPTER
225-01-2089A
SPRAY HEADER
HAGO-M1 NOZZLE
RUNS LENGTH OF CASE 225-01-3221
1/4" OD X 1/8" FPT
SW ADAPTER
225-01-3059
1/8" MPT X 1/4" COMP
PVC ADAPTER
REAR INTERIOR WALL OF CASE
VIEWED FROM FRONT
225-01-3059
1/4"MPT X 1/4" COMP PVC ADAPTER
225-01-2026
PAN AND ACCESS PANEL
WATER
SUPPLY
1/4"MPT X 1/4" OD BALL VALVE WATER FILTER
COMP ADAPTER
225-01-1312
HAMMON 3 STAGE #00015
225-01-2026 225-01-2026
2ND FAN USED
IN 12' CASE
3" AXIAL FAN
225-01-2026
7
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VGM, VGD-0505
Refrigeration
THERMOSTATIC EXPANSION VALVE LOCATION
REFRIGERANT
TYPE
This device is located on the same side as the refrigera-
tion stub. An ALCO expansion valve model is furnished
as standard equipment, unless otherwise specified by
customer.
The standard refrigerant will be R-22 unless otherwise
specified on the customer order. Check the serial plate
on the case for information.
REFRIGERATION LINES
EXPANSION VALVE ADJUSTMENT
LIQUID
SUCTION
There is one (1) valve on the right side of each coil.
3/8" O.D.
5/8" O.D.
NOTE: The standard coil is piped at 5/8" (suction); however, the
store tie-in may vary depending on the number of coils
and the draw the case has. Depending on the case setup,
the connecting point in the store may be
MEASURING THE OPERATING SUPERHEAT
1. Determine the suction pressure with an accurate
pressure gauge at the evaporator outlet.
2. From a refrigerant pressure temperature chart, de-
termine the saturation temperature at the observed
suction pressure.
3. Measure the temperature of the suction gas at the
thermostatic remote bulb location.
4. Subtract the saturation temperature obtained in step
No. 2 from the temperature measured in step No. 3.
5. The difference is superheat.
5/8", 7/8", or 11/8". Refer to the particular case you are
hooking up.
Refrigerant lines should be sized as shown on the
refrigeration legend furnished by the store.
Install P-traps (oil traps) at the base of all suction line
vertical risers.
Pressure drop can rob the system of capacity.To keep the
pressure drop to a minimum, keep refrigerant line run as
short as possible, using the minimum number of elbows.
Where elbows are required, use long radius elbows only.
6. Set the superheat for 5°F - 7°F.
T-STAT
LOCATION
CONTROL SETTINGS
T-Stats are located within the electrical raceway. Refer to
diagram below.
See the “Case Specs” section of this guidebook for the
appropriate settings for your merchandiser. Maintain
these parameters to achieve near constant product
temperatures. Product temperature should be measured
first thing in the morning, after having been refrigerated
overnight. For all multiplexing, defrost should be time
terminated. Defrost times should as directed in the
Case Specifications section of this guide. The number of
defrosts per day should never change.The duration of
the defrost cycle may be adjusted to meet conditions
present at your location.
T
B
B
WATER,
ELEC. &
DRAIN
MECHANICAL
STUB UP AREA
19" X 19"
C
L
REFRIG.
MECHANICAL
STUB UP AREA
19" X 19"
DRAIN
CASE FRONT
CASE FRONT
T-STAT AND BALLAST LOCATIONS
ACCESS TO TX VALVES & DRAIN LINES
MECHANICAL - Remove product from end of case.
Remove product racks. Remove refrigeration and drain
access panels (labeled).TX valve (mechanical only) and
drain are located under each access panel at end of the
case.
ELECTRONIC - The Electronic Expansion valve master
and slave cylinder(s) are located within the electrical
access panel(s).
ELECTRONIC EXPANSION VALVE (OPTIONAL)
A wide variety of electronic expansion valves and case
controllers can be utilized. Please refer to EEV and
controller Hussmanns information sheet. Sensors for
electronic expansion valves will be installed on the coil
inlet, coil outlet, and in the discharge air. (Some super-
markets require a 4th sensor in the return air). Case
controllers will be located in the electrical raceway or
SELF CONTAINED CASES
The only difference between a remote case and a self-
contained case is the addition of a condensing unit.
SELF CONTAINED START-UP
Self contained cases are totally ready to run once power
is supplied. All controls are set and units charged with
refrigerant.
DEFROST SET-UP
Defrost times vary according to case model - refer to
Case specification section in the back of the book for
proper duration and frequency. Self contained cases have
individual defrost time clocks. When power has been
applied, set the time clock to the proper duration and
frequency.
The time clock is located behind the front panel under
the case. Turn the clock dial counterclockwise until the
pointer is directed to the current time of day.
under the case
8
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Rev. 0505
User Information
S T O C K I N G
Improper temperature and lighting will cause serious
product loss. Discoloration, dehydration and spoilage can
be controlled with proper use of the equipment and
handling of product. Product temperature should always
be maintained at a constant and proper temperature.
This means that from the time the product is received,
through storage, preparation and display, the tempera-
ture of the product must be controlled to maximize life
of the product. Hussmann cases were not designed to
“heat up” or “cool down” product—but rather to
maintain an item’s proper temperature for maximum
shelf life. To achieve the protection required always:
1. Minimize processing time to avoid damaging
temperature rise to the product. Product should be
at proper temperature.
2. Keep the air in and around the case area free of
foreign gasses and fumes or food will rapidly
deteriorate.
3. Maintain the display merchandisers temperature
controls as outlined in the refrigerator section of this
manual.
4. Do not place any product into these refrigerators
until all controls have been adjusted and they are
operating at the proper temperature. Allow
merchandiser to operate a minimum of 6 hours
before stocking with any product.
5. When stocking, never allow the product to extend
beyond the recommended load limit. Air discharge
and return air flue must be unobstructed at all times
to provide proper refrigeration.
10. Cold coils remove heat and moisture from the case
and deposit this as frost onto the coil. Thus, a defrost
is required. Our humidity system induces moisture
into the case and helps slow down the dehydration
process. The only other moisture within the case is
that in the product itself. A single level of meat will
dry out faster than a fully loaded case of 3–4 levels of
meat.
IMPORTANT
STEPS
1. For temperature settings, please see the Case
Specifications section in this book.
2. Temperature control should be by means of aT-Stat
and Suction Stop Solenoid at each case. Do not use
EPR valves, Liquid Line Solenoids or electronic
control devices of any kind, as these allow
temperature swings causing dehydration and
excessive energy consumption.
3. Product should be worked and rotated on a regular
basis, not to exceed a 4-hour period.
4. At night, turn off case lights and cover the product
with a damp (not wet) cloth similar to cheese cloth
(etc.).This should be washed out in the morning and
kept in a walk-in box during the day—so that it is cool
and moist when covering the product.
5. Discharge air temperature should be approximately
26°F, with between 150-200 FPM air velocity. Do not
display product directly within the air discharge.
6. Clean Humidity system a minimum of every 90 days
for proper system operation.
6. There are vents located at the base of the front of the
glass, just above the front rail.These vents supply a
continuous, gentle flow of air across the front glass
which inhibits condensation. Do not place any signs
or other restrictive objects on the front of the
refrigerator that will block these vents.
7. Keep the service doors closed (when applicable).
Refrigeration performance will be seriously affected
if left open for a prolonged period of time.
8. Avoid the use of supplemental flood or spot lighting.
Display light intensity has been designed for
maximum visibility and product life at the factory.The
use of higher output fluorescent lamps (H.O. and
V.H.O.), will shorten the shelf life of the product.
9. In the Deli cases, completely cover the product each
night with a clean damp cloth or butcher paper
(never use plastic,as it does not allow appearance and
significantly shortening product shelf life.
CASE
CLEANING
Long life and satisfactory performance of any equipment
are dependent upon the care given to it.To insure long
life, proper sanitation and minimum maintenance costs,
the refrigerator should be thoroughly cleaned frequently.
SHUT OFF FAN DURING CLEANING PROCESS. It can
be unplugged within the case, or shut off case at the
source.The interior bottom may be cleaned with any
domestic soap or detergent based cleaners. Sanitizing
solutions will not harm the interior bottom, however,
these solutions should always be used according to the
Hussmann’s directions. It is essential to establish and
regulate cleaning procedures. This will minimize bacteria
causing discoloration which leads to degraded product
Soap and hot water are not enough to kill this bacteria. A
sanitizing solution must be included with each cleaning
process to eliminate this bacteria.
1. Scrub thoroughly, cleaning all surfaces, with soap and
9
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VGM, VGD-0505
PLEXIGLASS & ACRYLIC CARE
hot water.
Improper cleaning not only accelerates the cleaning cycle
but also degrades the quality of this surface. Normal daily
buffing motions can generated static cling attracting dust
to the surface. Incorrect cleaning agents or cleaning
cloths can cause micro scratching of the surface, causing
the plastic to haze over time.
2. Rinse with hot water, but do not flood.
3. Apply the sanitizing solution according to
Hussmann’s directions.
4. Rinse thoroughly.
5. Dry completely before resuming operation.
CLEANING
CLEANING GLASS & MIRRORS
Hussmann recommends using a clean damp chamois, or
a paper towel marked as dust and abrasive free with
210® Plastic Cleaner and Polish available by calling
Sumner Labs at 1-800-542-8656. Hard, rough cloths or
paper towels will scratch the acrylic and should not be
used.
Only use a soft cloth and mild glass cleaner for cleaning
any glass or mirrored components. Be sure to rinse and/
or dry completely. Never use hot water on cold
glass surfaces! It may shatter and cause serious
injury! Allow glass surfaces to warm first.
ANTISTATIC COATINGS
The 210® has proven to be very effective in not only
cleaning and polishing the Plexiglass surface, but also
providing anti-static and anti-fog capabilities. This product
also seals pores and provides a protective coating.
CLEANING
PRECAUTIONS
WHEN CLEANING:
Never Use a Cleaning or Sanitizing
Solution that has an OIL BASE
(these will dissolve the butyl
sealants) or AMMONIA BASE (this
will corrode the copper components
of the case)
TO PRESERVE THE ATTRACTIVE FINISH:
Do Use Water and a Mild Detergent for
the Exterior Only!
Do Not Use Abrasives or Steel Wool
Scouring Pads (these will mar the finish)
NON-GLARE
GLASS
The high optical clarity of this glass is possible due to
special coatings on the glass surface itself. To preserve
this coating and the optical clarity, keep th glass clean.
Windex® or Glass Plus® are the only soluitons recom-
mended to be used to clean the non-glare glass.The
damage to the glass from improper, cautic solutions is
irreparable.
In addition to cleaning the glass with the recommended
product, there are precautions that should be taken
when working and cleaning the inside of the case.
•
When cleaning the inside of the cases, we
recommend tha tthe glass be fully opened and
covered to prevent to prevent solutions from
plasihgn onto the glass and ruining the coating on the
inside.
1 0
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Rev. 0505
Maintenance
ELECTRICAL
PRECAUTIONS
FOR PROMPT SERVICE
BEFORE
When Contacting the Factory
regarding problems, Be sure
to have the Case MODEL and
SERIAL NUMBER Handy.
This Information is on a plate
located on the case itself.
SERVICING
Always Disconnect Electrical
Power at the Main Disconnect
when servicing or replacing
any electrical component.
This includes (but not limited to) Fans,
Heaters, Thermostats, and Lights.
SHELF GLASS ADJUSTMENT
Unload product from shelves. Remove the glass insert
panels, and use the 5mm wrench provided to slightly
loosen the set screw at the lower rear of arm. Repeat
the procedure ton the other arm.
REPLACING
FLUORESCENT
LAMPS
Fluorescent lamps are furnished with a shatterproof
protective coating.The same type of lamp with protec-
tive coating must be used if replaced.
CAUTION: SUPPORT SHELF AT ALL TIMES! DO NOT
LET SHELF DROP! Use a tape measure to insure level
height from deck pans, and adjust the shelf as desired.
Note that the standard is marked in 1” increments, to
aid in shelf alignment. When desired shelf location is
reached, tighten shelf arm screws, and reload product.
ENCAPSULITE
SHATTERPROOF COATING - SA 10645
R
Complies with FDA USDA
& OSHA Regulations
R U
NSF
for replacement call:
1-800-395-9229
SET SCREW
Turn switch off then on after replacing bulb
LIFT UP GLASS
IMPORTANT!
READ BEFORE RAISING FRONT GLASS :
EVAPORATOR FANS
The evaporator fans are located at the center front of
these merchandisers directly beneath the display pans.
Should fans or blades need servicing, always replace fan
blades with the raised embossed side of the bladeTOWARD
THE MOTOR.
HEX SCREWS ALONG CLAMSHELL
MAY HAVE LOOSENED DURING
SHIPPING!! RETIGHTEN ALL
CLAMSHELL SCREWS BEFORE
OPENING
GLASS!
COPPER COILS
The copper coils used in Hussmann merchandisers may
be repaired in the field. Materials are available from local
refrigeration wholesalers.
RETIGHTEN GLASS AFTER CASE
IS BROUGHT TO OPERATING
TEMPERATURE FOR THE FIRST
TIME!
Hussmann recommends using #15 Sil-Fos for repairs.
TIPS
&
TROUBLESHOOTING
The top cylinders, which allow the raising and lowering
of the glass, have been carefully tested for proper ten-
sion. However, during shipment, the lubricant inside may
have settled.This settling may cause excessive or uneven
tension on the glass - to the point of breakage.
After installing new cylinders, it is advisable to perform
these three easy steps before completely raising the
front glass.
BEFORE CALLING FOR SERVICE, CHECK THE
FOLLOWING:
1. Check electrical power supply to the equipment for
connection.
2. Check fixture loading. Overstocking case will affect
its proper operation.
3. If frost is collecting on fixture and/or product, check
that Humidity Control is working properly, and that
no outside doors or windows are open—allowing
moisture to enter store.
1. Slowly raise and lower each glass section 6 times, to
a height of 6".
1 1
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VGM, VGD-0505
Maintenance (cont.)
2. Increase the height to 12", and raise and lower the
glass 6 more times.
3. Finally, raise the glass to it's full extension.This should
release any settled lubricant in the cylinders, and
prevent any stress on the front glass. (1)(3)
GLASS REPLACEMENT & RIGHT – LEFT ADJUSTMENT
1. Open glass
panel.
2. Back out
all the set screws
along the top
edge of the glass
panel
Relieve the
tension on
the hinge.
(3mm set screw)
PVC
U-channel
Back
of Case
Inside
of Case
3. Use tip of
4. Slide glass panel
in desired direction
or remove panel
screwdriver to
gently tap loose
wedge the entire
length of the panel
FOR PROMPT SERVICE
When Contacting the Factory
regarding problems, Be sure
to have the Case MODEL and
SERIAL NUMBER Handy.
This Information is on a plate
located on the case itself.
1 2
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Rev. 0505
Maintenance cont’d
Glass Sweep Installation
(WHERE APPLICABLE)
PARTS LIST
• Silicone 1200 (or comparable)
• Masking tap (not supplied)
INSTRUCTIONS
1. Cut a strip of the glass sweep material to the proper
length.
2. Open glass wide enough to apply a few small drips of
#1200 silicone down the edge of one side of the glass.
Space each drop about 4” apart.
BEFORE
SERVICING
Always Disconnect Electrical
Power at the Main Disconnect
when servicing or replacing
any electrical component.
This includes (but not limited to) Fans,
Heaters, Thermostats, and Lights.
3. Apply the glass sweep strip to the freshly siliconed
end, making sure to align the edges top and bottom.
Carefully wipe up any excess silicone that may be
bubbling up from the edges.
4. Apply tape across the strip,to hold it in place on edge
of glass until the silicone has a chance to properly dry
(approximately 30 minutes).
ALWAYS DISCONNECT ELECTRICAL POWER AT THE MAIN
DISCONNECT WHEN SERVICING OR REPLACING ANY
ELECTRICAL COMPONENT. This includes (but not limited
to) fans, heaters, thermostats, and lights.
TIPS & TROUBLESHOOTING
BEFORE CALLING FOR SERVICE IF SOMETHING
SEEMS WRONG, CHECK THE FOLLOWING:
1. Check electrical power supply to the equipment for
connection.
5
Repeat process for strip on the other edge.
ELECTRICAL
PRECAUTIONS
2. Check fixture loading. Overstocking case or blocking
airflow will affect it’s proper operation.
3. If frost is collecting on fixture and/or product, check
that Humidity Control is working properly, and that
no outside doors or windows are open—allowing
moisture to enter store.
FOR PROMPT SERVICE
When Contacting the Factory
regarding problems, Be sure
to have the Case MODEL and
SERIAL NUMBER Handy.
This Information is on a plate
located on the case itself.
1 3
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VGM, VGD-0505
Case Specifications
TEMPERATURE DISCHG.
BTU AVG
REQ’D EVAP PROD DISC
FT. TMP TMP TMP
TYPE
T-STAT/
CUT IN
DEFROST
FREQ.
&
115 V. ELECTRICAL CIRCUITS
HUMIDITY
MODEL
LENGTH
AIR
VELOC
FAN SIZE
NUMBER
OF MOTORS
AIR
SWEEP
FANS
AIR
SWEEP
HEATER
HUNIDITY
SYSTEM
FANS
FAN
QTY
E E FANS
RECEP-
TACLE
APP.
@FPM SETTINGS EVAP. COIL
DURATION (STANDARD) LIGHTS
VGD Deli (Blower Coil)
4'
Deli 750 20° 34° 25°
Deli 750 20° 34° 25°
Deli 750 20° 34° 25°
Deli 750 20° 34° 25°
Deli 750 20° 34° 25°
250
250
250
250
250
26°
26°
26°
26°
26°
Forced
Air
Evap 41/2" Axial
Air Sweep 41/2" Axial
Humidity 31/4” Axial
Evap 41/2" Axial
3
1
1
4
2
1
4
3
1
6
3
2
6
3
2
36 min.
(4)
54
1.83
3.66
3.66
5.49
5.49
15.0
15.0
15.0
15.0
15.0
36
1.04
1.57
2.09
3.48
3.13
[.16]
[.16]
[.16]
[.32]
[.32]
6'
Forced
Air
36 min.
(4)
1.08
1.08
1.62
1.62
72
Air Sweep 41/2" Axial
Humidity 31/4” Axial
Evap 41/2" Axial
8'
Forced
Air
36 min.
(4)
1.08
1.08
1.08
Air Sweep 41/2" Axial
Humidity 31/4” Axial
Evap 41/2" Axial
s
10'
12'
Forced
Air
36 min.
(4)
Air Sweep 41/2" Axial
Humidity 31/4” Axial
Evap 41/2" Axial
Forced
Air
36 min.
(4)
Air Sweep 41/2" Axial
Humidity 31/4” Axial
NOTE:A. Case temperature is controlled by a factory installed thermostat and suction solenoid (excluding self contained cases), no other controls are recommended or supported.
B. Data in [ ] Indicates optional Humidity System.
VGD Deli Wedges
TEMPERATURE DISCHG.
TYPE
T-STAT/
CUT IN
DEFROST
FREQ.
&
115 V. ELECTRICAL CIRCUITS
HUMIDITY
MODEL
LENGTH
BTU
AVG
AIR
VELOC
FAN SIZE
NUMBER
OF MOTORS
AIR
SWEEP
FANS
AIR
SWEEP
HEATER
HUNIDITY
SYSTEM
FANS
REQ’D EVAP PROD DISC
FAN
QTY
E E FANS
RECEP-
TACLE
APP.
FT.
TMP TMP TMP
@FPM SETTINGS EVAP. COIL
DURATION (STANDARD) LIGHTS
30° / 45° Inside
All Loads on Parent Case
All Loads on Parent Case
Outside
90° Inside Deli 2,670 20° 36° 28° 200-300 28°
Inside Meat Total 20° 34° 26° 201-300 26°
90°Outside Deli 2,670 20° 36° 28° 202-300 28°
Outside Meat Total 20° 34° 26° 200-300 26°
Forced
Air
Forced
Air
Evap 41/2" Axial
Air Sweep 41/2" Axial
Evap 41/2" Axial
2
1
1
1
36 min.
(4)
36 min.
(4)
.36
.18
1.22
1.22
15.0
15.0
.18
.18
1.04
1.04
Air Sweep 41/2" Axial
VGM Meat/Fish (Gravity Coil)
4'
Deli 360 15° 36° 28°
Deli 360 15° 36° 28°
Deli 360 15° 36° 28°
Deli 360 15° 36° 28°
Deli 360 15° 36° 28°
28°
28°
28°
28°
28°
Gravity Air Sweep 41/2" Axial
Gravity Air Sweep 41/2" Axial
Gravity Air Sweep 41/2" Axial
Gravity Air Sweep 41/2" Axial
Gravity Air Sweep 41/2" Axial
1
2
3
3
3
90 min.
(1)
90 min.
(1)
90 min.
(1)
90 min.
(1)
-
-
-
-
-
1.77
2.93
3.54
n/a
15.0
15.0
15.0
n/a
36
72
1.04
1.57
2.09
n/a
[.16]
[.16]
[.16]
n/a
6'
8'
1.08
n/a
10'
12'
90 min.
(1)
5.31
15.0
1.08
3.13
[.32]
NOTE:A. Case temperature is controlled by a factory installed thermostat and suction solenoid (excluding self contained cases), no other controls are recommended or supported.
B. Data in [ ] Indicates optional Humidity System.
SELF CONTAINED DATA
BLOWER COIL
GRAVITY COIL
LOW
LOW
PRESSURE
PRESSURE
SETTINGS
H.P.
VOLTS
AMPACITY
SETTINGS
H.P.
VOLTS
AMPACITY
4’
30# Out
50# in
1/3
115
10.9
6’
30# Out
50# in
30# Out
50# in
30# Out
50# in
30# Out
50# in
1/2
3/4
1
115
19.9
8.7
8’
208
/230
208
/230
208
10’
12’
13.0
13.0
1
/230
1 4
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Rev. 0505
Electrical Schematics
0
3 0 3 0 1 - 2 1 5 -
C A V
R E T
1 2 0 @ 1 3 9 " 6 3 0 W
E E P H S E W A R A I
E R I W F F
E R I W F F
A P C O
A P C O
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
1 5
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VGM, VGD-0505
Electrical Schematics (Continued)
1
3 0 3 0 1 - 2 1 5 -
C
R E T
0 V A 1 2 @ 4 2 0 W
P E H E E W A S R A I
2
3 - 1 1 3 1 2 5 - 0
4 - 8 "
F 2 8 T 5
L 0 - 2 1 3 - L H M A H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 "
F 2 8 T 5
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 "
F 2 8 T
L 0 - 2 1 3 - L H M A H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 "
F 2 8 T 5
2
3 - 1 1 3 1 2 5 - 0
4 - 8 "
F 2 8 T 5
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 "
F 2 8 T 5
1
3 - 0 2 4 1 2 5 - 0
4 - 8 " F 3 2 T 8
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
L - 0 2 1 3 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
L 0 - 2 1 3 - L H M A H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
1 6
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Rev. 0505
Electrical Schematics (Continued)
2
3 0 3 0 1 - 2 1 5 -
C
R E T
0 V A 1 2 @ 8 1 0 W
E E P H S E W A R A I
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
1 7
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VGM, VGD-0505
Electrical Schematics (Continued)
0
3 0 3 0 1 - 2 1 5 -
C
R E T
0 V A 1 2 @ 6 3 0 W
E E P W H E S A R A I
E R I W F F
E R I W F F
A P C O
A P C O
L 0 - 2 1 3 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 " 2 8 F T 5
L 0 - 2 1 3 - L H M A H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " F 3 2 T
2
3 - 1 1 3 1 2 5 - 0
4 - 8 "
F 2 8 T 5
L 0 - 2 1 3 - L H M A H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " F 2 8 T
1
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
4 - 8 "
F 3 2 T 8
L - 0 2 1 3 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
L 0 - 2 1 3 - L H M A H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
3 - 0 2 4 1 2 5 - 0
4 - 8 "
F 3 2 T 8
1 8
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Rev. 0505
Electrical Schematics (Continued)
3 - 0 1 3 0 1 1 2 5 -
C
1 2 @ 0 V A 2 4 0 W
T E R H E A E E P R A S I W
2
2
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
- L
3 - H 1 2 L 0 M A L H F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
3 - 1 1 3 1 2 5 - 0
4 - 8 5 " 2 8 F T
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L
3 - H 1 2 L 0 M A L H F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L
3 - H 1 2 L 0 M A L H F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
- L
3 - H 1 2 L 0 M A L H F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
1
3 - 0 2 4 1 2 5 - 0
4 - 8 8 " 3 2 F T
1 9
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VGM, VGD-0505
2
3 0 3 0 1 - 2 1 5 -
C
R E T
0 V A 1 2 @ 8 1 0 W
E E P H S E W A R A I
9
9
3 - 1 1 2 1 2 5 - 0
3 - 6 5 " 2 1 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
3 - 1 1 2 1 2 5 - 0
3 - 6 5 " 2 1 F T
0 G 3 - 0 0 1 1 2 5 - 0
3 - 6 8 " 2 5 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
0 G 3 - 0 0 1 1 2 5 - 0
3 - 6 8 " 2 5 F T
0 G 3 - 0 0 1 1 2 5 - 0
3 - 6 8 " 2 5 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
0 G 3 - 0 0 1 1 2 5 - 0
3 - 6 8 " 2 5 F T
0 G 3 - 0 0 1 1 2 5 - 0
3 - 6 8 " 2 5 F T
- L 1 2 3 0 - L H A M H L F U
- 3 2 6 6 1 T 2 S 5 - 0 1 L L A B A
0 G 3 - 0 0 1 1 2 5 - 0
3 - 6 8 " 2 5 F T
2 0
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Rev. 0505
Appendices
Hussmann for the installation of each individual type
refrigerator.
1.2 Refrigeration piping should be sized according to
Hussmann’s equipment recommendations and installed
in accordance with normal refrigeration practices.
Refrigeration piping should be insulated according to
Hussmann’s recommendations.
1.3 A clogged waste outlet blocks refrigeration. The in-
staller is responsible for the proper installation of the
system which dispenses condensate waste through an
air gap into the building indirect waste system.
1.4 The installer should perform a complete start-up
evaluation prior to the loading of food into the refrig-
erator, which includes such items as:
APPENDIX A. – TEMPERATURE
GUIDELINES
REFRIGERATED
The refrigerators should be operated according to
Hussmann’s published engineering specifications for enter-
ing air temperatures for specific equipment applications.
Table 1 shows the typical temperature of the air entering
the food zone one hour before the start of defrost and one
hour after defrost for various categories of refrigerators.
Refer to Appendix C for Field Evaluation Guidelines.
TABLE 1
TYPE OF
TYPICAL
ENTERING
REFRIGERATOR
AIR TEMPERATURE
a) Initial temperature performance, Coils should be
properly fed with a refrigerant according to
Hussmann’s recommendations.
b) Observation of outside influences such as drafts,
radiant heating from the ceiling and from lamps.
Such influence should be properly corrected or
compensated for.
c) At the same time, checks should be made of the
store dry-bulb and wet-bulb temperatures to as-
certain that they are within the limits prescribed by
Hussmann.
I. OPEN DISPLAY
A. Non frozen:
1) Meat
2) Dairy/Deli
3) Produce
a. Processed
b. Unprocessed
B. Frozen
28°F
32°F
36°F
45°F
0°F
C. Ice Cream
-5°F
d) Complete start-up procedures should include
checking through a defrost to make certain of its
adequate frequency and length without substan-
tially exceeding the actual needs. This should
include checking the electrical or refrigerant cir-
cuits to make sure that defrosts are correctly
programmed for all the refrigerators connected to
each refrigeration system.
II. CLOSED DISPLAY
A. Non frozen:
1) Meat
2) Dairy/Deli
3) Produce
a. Processed
b. Unprocessed
B. Frozen
34°F
34°F
36°F
45°F
0°F
e) Recording instruments should be used to check
performance.
C. Ice Cream
-5°F
APPENDIX C. – FIELD RECOMMENDATIONS
Recommendations for field evaluating the performance of
retail food refrigerators and hot cases
1.0 The most consistent indicator of display refrigerator
performance is temperature of the air entering the
product zone (Refrigerated see Diagram 1, Appendix
A). In practical use, the precise determination of return
air temperature is extremely difficult. Readings of
return air temperatures will be variable and results will
be inconsistent. The product temperature alone is not
an indicator of refrigerator performance.
Single Deck
Multi Deck
Service Case
Reach-In
I. Open Display Styles
II. Closed Display Styles
NOTE: Public Health will use the temperature of the
product in determining if the refrigerator will be allowed
to display potentially hazardous food. For the purpose of
this evaluation, product temperature above the FDA Food
Code 1993 temperature for potentially hazardous food
will be the first indication that an evaluation should be
performed. It is expected that all refrigerators will keep
food at the FDA Food Code 1993 temperature for poten-
tially hazardous food.
APPENDIX B. – APPLICATION
R E C O M M E N D A T I O N S
REFRIGERATED
1.0 Temperature performance is critical for controlling
bacteria growth. Therefore, the following recommen-
dations are included in the standard. They are based on
confirmed field experience over many years.
1.1 The installer is responsible for following the installa-
tion instructions and recommendations provided by
1.1 The following recommendations are made for the
2 1
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VGM, VGD-0505
purpose of arriving at easily taken and understood data 15. Is the defrost termination, thermostat (if used) set too
which, coupled with other observations, may be used
to determined whether a display refrigerator is work-
ing as intended:
high?
16. Are the refrigerant controls incorrectly adjusted?
17. Is the air entering the condenser above design condi-
tions? Are the condenser fins clear of dirt, dust, etc.?
18. Is there a shortage of refrigerant?
19. Has the equipment been modified to use replacements
for CFC-12, CFC-502 or other refrigerant? If so, have
the modifications been made in accordance with Hus-
smann equipment recommendations? Is the refrigera-
tor charged with the proper refrigerant and lubricant?
Does the system use the recommended compressor?
a) INSTRUMENT – A stainless steel stem-type ther-
mometer is recommended and it should have a dial
a minimum of 1 inch internal diameter. A test
thermometer scaled only in Celsius or dually
scaled in Celsius and Fahrenheit shall be accurate
to 1°C (1.8°F). Temperature measuring devices
that are scaled only in Fahrenheit shall be accurate
to 2°F. The thermometer should be checked for
proper calibration. (It should read 32°F when the
stem is immersed in an ice water bath).
APPENDIX D. – RECOMMENDATIONS TO
USER -
b) LOCATION – The probe or sensing element of
the thermometer should be located in the air- 1.0 Hussmann should provide instructions and recom-
stream where the air first enters the display or
storage area, and not more than 1 inch away from
the surface and in the center of the discharge
opening.
mendations for proper periodic cleaning. The user will
be responsible for such cleaning, including the cleaning
of low temperature equipment within the compart-
ment and the cooling coil area(s). Cleaning practices,
particularly with respect to proper refrigerator un-
loading and warm-up, must be in accordance with
applicable recommendations.
c) READING – It should first be determined that the
refrigerator is refrigerating and has operated at
least one hour since the end of the last defrost
period. The thermometer reading should be made
only after it has been allowed to stabilize, i.e.,
maintain a constant reading.
d) OTHER OBSERVATIONS – Other observations
should be made which may indicate operating
problems, such as unsatisfactory product, feel/
appearance.
e) CONCLUSIONS – In the absence of any apparent
undesirable conditions, the refrigerator should be
judged to be operating properly. If it is determined
that such condition is undesirable, i.e., the product
is above proper temperature, checks should be
made for the following:
1.1 Cleaning of non frozen food equipment should include
a weekly cleaning of the food compartment as a
minimum to prevent bacteria growth from accumulat-
ing. Actual use and products may dictate more fre-
quent cleaning. Circumstances of use and equipment
design must also dictate the frequency of cleaning the
display areas. Weekly washing down of the storage
compartment is also recommended, especially for
equipment subject to dripping of milk or other liquids,
or the collection of vegetable, meat, crumbs, etc. or
other debris or litter. Daily cleaning of the external
areas surrounding the storage or display compart-
ments with detergent and water will keep the equip-
ment presentable and prevent grime buildup.
1.2 Load levels as defined by Hussmann must be observed.
1.3 The best preservation is achieved by following these
rules:
1. Has the refrigerator been loaded with warm product?
2. Is the product loaded beyond the “Safe Load Line”
markers?
3. Are the return air ducts blocked?
4. Are the entering air ducts blocked?
a) Buy quality products.
5. Is a dumped display causing turbulent air flow and
b) Receive perishables from transit equipment at the
ideal temperature for the particular product.
c) Expedite perishables to the store’s storage equip-
ment to avoid unnecessary warm-up and pro-
longed temperature recovery. Food store refrig-
erators are not food chillers nor can they reclaim
quality lost through previous mishandling.
mixing with room air?
6. Are spotlights or other high intensity lighting directed
onto the product?
7. Are there unusual draft conditions (from heating /air-
conditioning ducts, open doors, etc.)?
8. Is there exposure to direct sunlight?
8. Are display signs blocking or diverting airflow?
9. Are the coils of the refrigerator iced up?
10. Is the store ambient over 75°F, 55% RH as set forth in
ASHRAE Standard 72 and ASHRAE Standard 117?
11. Are the shelf positions, number, and size other than
recommended by Hussmann?
12. Is there an improper application or control system?
13. Is the evaporator fan motor/blade inoperative?
14. Is the defrost time excessive?
d) Care must be taken when cross merchandising
products to ensure that potentially hazardous
vegetable products are not placed in non refriger-
ated areas.
e) Display and storage equipment doors should be
kept closed during periods of inactivity.
f) Minimize the transfer time of perishables from
storage to display.
g) Keep meat under refrigeration in meat cutting and
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Rev. 0505
Limited Warranty
This warranty is made to the original user at the original installation site and is not transferable.
Hussmann merchandisers are warranted to be free from defect in material and workmanship under normal use
and service for a period of one (1) year from the date of original installation (not to exceed fifteen (15) months from the
date of shipment for the factory). Hussmann Impact Modular Coils are warranted for a total of five (5) years
based upon the above criteria. Hussmann’s obligation under this warranty shall be limited to repairing or exchanging
any part or parts, without charge F.O.B. factory or nearest authorized parts depot within said period and which is proven
to the satisfaction of the original manufacturing plant warranty group to be thus defective.
Hussmann covers the entire case or refrigeration product and all its components (except for lamps, driers, fuses,
and other maintenance type replacement parts) for the one (1) year warranty period.
Additionally, Hussmann warrants for a total period of three (3) years all sealed, multi-glass assemblies except
those used in sliding doors on closed meat display cases. If within three (3) years from the date of installation (not to
exceed thirty-nine (39) months from the date of shipment from factory), it shall be proven to the satisfaction of the
originating factory warranty group that there is impaired visibility through the multi-glass assemblies thereof caused by
moisture between the glasses, the multi-glass assembly will be replaced free of charge, F.O.B. factory. This additional
warranty excludes accident, misuse, or glass breakage.
On Hussmann manufactured self-contained display cases, Hussmann agrees to repair or exchange, at its option,
the original motor/compressor unit only with a motor/compressor of like or of similar design and capacity if it is shown to
the satisfaction of Hussmann that the motor/compressor is inoperative due to defects in factory workmanship or material
under normal use and service as outlined in Hussmann’s “Installation Instructions” which are shipped inside new Hus-
smann equipment. Hussmann’s sole obligation under this warranty shall be limited to a period not to exceed five years
from date of factory shipment.
On Hussmann refrigeration systems, an additional (4) year extended warranty for the motor/compressor assem-
bly is available, but must be purchased prior to shipment to be in effect. Hussmann reserves the right to inspect the job
site, installation and reason for failure.
The motor/compressor warranties listed above do not include replacement or repair of controls, relays, capaci-
tors, overload protectors, valve plates, oil pumps, gaskets or any external part on the motor/compressor replaceable in the
field, or any other part of the refrigeration system or self-contained display case.
THE WARRANTIES TO REPAIR OR REPLACE ABOVE RECITED ARE THE ONLY WARRANTIES, EXPRESS,
IMPLIED OR STATUTORY, MADE BY HUSSMANN WITH RESPECT TO THE ABOVE MENTIONED EQUIPMENT,
INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS, AND HUSSMANN NEITHER AS-
SUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT, ANY OTHER OBLIGATION OR LIABILITY IN CON-
NECTION WITH THE SALE OF SAID EQUIPMENT OR ANY PART THEREOF.
THIS WARRANTY SHALL NOT APPLY TO LOSS OF FOOD OR CONTENTS OF THE EQUIPMENT
DUE TO FAILURE FOR ANY REASON. HUSSMANN SHALL NOT BE LIABLE:
• For payment of labor for any removal or installation of warranted parts;
• For any repair or replacements made without the written consent of Hussmann, or when the equipment is installed or
operated in a manner contrary to the printed instructions covering installation and service which accompanied such
equipment;
• For any damages, delays, or losses, direct or consequential which may arise in connection with such equipment or part
thereof;
• For damages caused by fire, flood, strikes, acts of God or circumstances beyond its control;
• When the equipment is subject to negligence, abuse, misuse or when the serial number of the equipment has been
removed, defaced, or altered;
• When the equipment is operated on low or improper voltages
• When the equipment is put to a use other than normally recommended by Hussmann (i.e. deli case used for fresh
meat);
• When operation of this equipment is impaired due to improper drain installation;
• For payment of refrigerant loss for any reason;
• For costs related to shipping or handling of replacement parts.
Hussmann Corporation, Corporate Headquarters: Bridgeton, Missouri, U.S.A. 63044 August 1, 1998
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VGM, VGD-0505
Service Record
Last service date:
By:
The MODEL NAME and SERIAL NUMBER is required in order to provide you
with the correct parts and information for your particular unit.
/Chino
Additional copies of this publication may be obtained by contacting:
Hussmann® Chino
They can be found on a small metal plate on the unit.
Please note them below for future reference.
13770 Ramona Avenue • Chino, California 91710
(909) 628-8942 FAX
MODEL:
(909) 590-4910
(800) 395-9229
SERIAL NUMBER:
2 4
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