SFG/SFNG SFG/SFNG

SFG/SFNG SFG/SFNG
/CHINO
SFG/SFNG
LOW/MEDIUM TEMP MERCHANDISER
SELF-SERVICE
Installation
& Operation
Manual
REV.
REV. 0317
1113
SFG/SFNG
LOW/MEDIUM TEMP MERCHANDISER
SELF-SERVICE BAKERY
INSTALLATION & OPERATION GUIDE
General Instructions
Table of Contents
This Booklet Contains Information on:
Model Descriptions
All models are available in either 48", 60" lengths.
SFG-SFNG- Refrigerated Specialty Frozen Glass SelfService Bakery Case with 1 or 2 tier merchandising, and
rear signage.
SFG-SFNG- Refrigerated Specialty Frozen Glass SelfService Bakery Case with 1 or 2 tier merchandising, and
rear signage. Remote unit requires separate condenser unit
connection. Low Temperature Model (SFG/SFNG).
Application
These service-type merchandisers have been specifically
designed for bakery departments.The front glass provides
complete product visibility.
The SFG-SFNG- Refrigerated model, is designed to
display fresh bakery products that have fast turnover and
require no refrigeration. The SFG-SFNG- remote and SFGSFNG- self-contained, refrigerated bakery merchandisers
are designed for use only in air conditioned stores where
temperature and humidity are maintained at or below 75°F
dry bulb temperature and 55% relative humidity.
Shipping Damage
All equipment should be thoroughly examined for shipping
damage before and during unloading.
This equipment has been carefully inspected at our factory
and the carrier has assumed responsibility for safe arrival.
If damaged, either apparent or concealed, claim must be
made to the carrier.
Apparent Loss or Damage
If there is an obvious loss or damage, it must be noted on
the freight bill or express receipt and signed by the carrier’s
agent; otherwise, carrier may refuse claim. The carrier will
supply necessary claim forms.
Concealed Loss or Damage
When loss or damage is not apparent until after equipment
is uncrated, a claim for concealed damage is made. Make
request in writing to carrier for inspection within 15 days,
and retain all packaging. The carrier will supply inspection
report and required claim forms.
General Instructions..........................................................2
Cut and Plan Views ...........................................................3
Cut and Plan Views (Cont'd) .............................................4
Installation..........................................................................5
Location ........................................................................................... 5
Uncrating the Stand ......................................................................... 5
Exterior Loading .............................................................................. 5
Setting and Joining .......................................................................... 5
Leveling ........................................................................................... 5
Corner Wedges ............................................................................... 6
Joint Trim ......................................................................................... 6
Bumper Installation Instructions ...................................................... 6
Plumbing ............................................................................7
Waste Outlet and P-TRAP ............................................................... 7
Installing Condensate Drain ............................................................ 7
Refrigeration ......................................................................7
Refrigerant Type .............................................................................. 7
Refrigeration Lines .......................................................................... 7
Control Settings ............................................................................... 7
Access to TX Valves and Drain Lines.............................................. 7
Electronic Expansion Valve (Optional) ............................................ 8
Thermostatic Expansion Valve Location.......................................... 8
Expansion Valve Adjustment ........................................................... 8
Measuring the Operating Superheat ............................................... 8
T-STAT Location .............................................................................. 8
Piping............................................................................................... 8
Refrigeration Data SFG ................................................................... 9
Refrigeration Data SFNG .............................................................. 10
Electrical...........................................................................11
Wiring Color Code ..........................................................................11
Electrical Circuit Identification.........................................................11
Electrical Service Receptacles (When Applicable) .........................11
Ballast Location ..............................................................................11
Field Wiring and Serial Plate Amperage .........................................11
Ashrae Color Code .........................................................................11
Rear Close-off Panel ......................................................................11
User Information ..............................................................12
Stocking ......................................................................................... 12
Important Steps ............................................................................. 12
Case Cleaning ............................................................................... 12
Stainless Steel Cleaning and Care ................................................ 13
Cleaning Mirrors ............................................................................ 14
Cleaning Glass and Mirrors ........................................................... 14
Non-Glare Glass ............................................................................ 14
Plexiglass and Acrylic Care ........................................................... 14
Cleaning ........................................................................................ 14
Antistatic Coatings ......................................................................... 14
Maintenance .....................................................................15
Evaporator Fans ............................................................................ 15
Copper Coils .................................................................................. 15
Tips and Troubleshooting .............................................................. 15
Electrical Wiring Diagram Index.....................................16
Electrical Wiring Diagrams .............................................17
Troubleshooting Guide ...................................................27
Troubleshooting (Cont'd) ................................................28
Appendices ......................................................................29
Keep this booklet with the case at all times for future reference.
/CHINO
This equipment is to be installed
to comply with the applicable
NEC, Federal, State , and Local
ATTENTION Plumbing and Construction
INSTALLER Code ha ving jurisdiction.
A publication of HUSSMANN® Chino
13770 Ramona Avenue • Chino, California 91710
(909) 628-8942 FAX
(909) 590-4910
(800) 395-9229
2
General Instructions (Cont'd)
Shortages
Check your shipment for any possible shortages of
material. If a shortage should exist and is found to be the
responsibility of Hussmann Chino, notify Hussmann Chino.
If such a shortage involves the carrier, notify the carrier
immediately, and request an inspection. Hussmann Chino
will acknowledge shortages within ten days from receipt
of equipment.
Hussmann Chino Product Control
The serial number and shipping date of all equipment
has been recorded in Hussmann’s files for warranty and
replacement part purposes. All correspondence pertaining
to warranty or parts ordering must include the serial number
of each piece of equipment involved, in order to provide
the customer with the correct parts.
Cut and Plan Views
2 1/8"
"A"
2 1/8"
17 1/8"
9"
SFG-4
SFG-5
SFG-6
SFG-8
SFG-12
9"
27 7/8"
32 1/8"
27 7/8"
32 1/8"
REF
CONN
ELEC
CONN
46 1/8"
CASE SIZE
17 1/8"
DRAIN
DIM [A] in
DIM [B] in
48
59
72
96
144
52 3/8
64
76 7/16
100 1/2
148 5/8
1/8
3/4
3/16
1/4
3/8
DRAIN
"B"
11 3/4"
16 7/8"
35 3/8"
11 3/4"
16 7/8"
11"
35 3/8"
11"
34 5/8"
32 1/8"
17 1/4"
14 3/4"
13"
10 1/8"
7 3/4"
5 1/4"
7 1/2"
34 1/2"
2 3/8"
5 1/4"
37 1/4"
45 5/8"
45 3/4"
SFG W/ SGB BODY MATCH
SFG W/ ISLA BODY MATCH
3
1 7/8"
Cut and Plan Views (Cont'd)
2 1/8"
"A"
2 1/8"
17 1/8"
9"
27 7/8"
40 1/8"
32 1/8"
17 1/8"
CASE SIZE
DIM [A] in
DIM [B] in
9"
SFNG-4
SFNG-5
SFNG-6
SFNG-8
SFNG-12
48
59
72
96
144
52 3/8
64
76 7/16
100 1/2
148 5/8
27 7/8"
32 1/8"
REF
CONN
ELEC
CONN
1/8
3/4
3/16
1/4
3/8
DRAIN
DRAIN
"B"
11 3/4"
16 7/8"
11"
29 3/8"
16 7/8"
29 3/8"
11 3/4"
11"
34 5/8"
32 1/8"
17 1/4"
14 3/4"
13"
10 1/4"
7 3/4"
5 1/4"
7 1/2"
28 1/2"
5 1/4"
2 3/8"
31 1/4"
39 5/8"
39 3/4"
SFNG W/ SGB BODY MATCH
SFNG W/ ISLA BODY MATCH
4
1 7/8"
Installation
Location
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.
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
(dotted area shown in figure) first case. Apply heavy
amount to cover entire shaded area.
DO NOT USE PERMAGUM!
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!
This equipment is to be installed
to comply with the applicable
NEC, Federal, State , and Local
ATTENTION Plumbing and Construction
INSTALLER Code ha ving jurisdiction.
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.
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 butyl 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 2 bolts located in the
base of the case. Secure the overhead structure by
bolting the bracket, located inside behind lights.
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 DRAINAGE,
GLASS ALIGNMENT AND OPERATION OF THE HINGES
SUPPORTING THE GLASS. LEVELING THE CASE
CORRECTLY WILL SOLVE MOST HINGE OPERATION
PROBLEMS.
NOTE:
Do not use cam locks to pull cases together.
A. To avoid removing concrete flooring when installing
long lineups, begin lineup leveling from the highest
point of the store floor.
9. Apply bead of butyl to top of bulkheads and slip on
stainless steel bulkhead cap. Also apply butyl to
seam between overhead light tubes.
10. VERY IMPORTANT! Apply liberal amounts of black
butyl to area under interior lower legs and fill all
voids down to bulkhead.
11 . Use finger to smooth butyl as thin as possible at
masking tape on inside and outside of rear mullion
(apply additional butyl if necessary). Remove tape
applied on line #3.
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 carpenters level and shim
legs accordingly. Case must be raised correctly, under legs
where support is best, to prevent damage to case.
1. Check floor where cases are to be set to determine
the highest point of the floor; cases will be set off this
point.
5
Installation (Cont'd)
Corner Wedges
Corner wedges are attached via front and rear camlocks.
Use a 7mm Allen wrench to turn the locks. Do not
over- tighten! Join the top by using a joint bracket (included
in joint kit) with 3/8" bolts.
Joint Trim
After cases have been leveled and joined and refrigeration,
electrical, and wasted piping work completed, install the
splashguards. Fasten along the top edge or center, with
#10 X 3/3” sheet metal screws.
DO NOT SEAL JOINT TRIM TO FLOOR!
Bumper Installation Instructions
Step 2: Use silicone lubricant to help the
bumper slide into the channel.
Step 1: Make sure the aluminum channel and end caps
are installed.
Step 3: Starting on one end: while inserting the bumper,
push it up against the end cap to prevent
the bumper from shrinking after installation
(when it gets cold).
Step 4: As you insert the bumper into the channel with
one hand, pull the bumper toward you with
the other to open the inside lips. Slowly
apply pressure by rolling the bumper into
the track.
6
Plumbing
4. Avoid long runs of condensate drains. Long runs
make it impossible to provide the "fall" necessary for
good drainage.
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
material such as Armstrong's Armaflex.
b. Where condensate drains are located in dead
air spaces (between refrigerators or between a
refrigerator and a wall), provide means to prevent
freezing. The water seal should be insulated to
prevent condensation.
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 3/4" 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.
Installing Condensate Drain
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 installation:
1. Never use pipe for condensate drains smaller
than 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
Nipple
Inside Case
(All Models)
Coupling
90°
Air Gap
Remote
Refrigeration
Only!
Refrigeration
Refrigerant Type
The standard refrigerant will be R-404A unless otherwise
specified on the customer order. Check the serial plate on
the case for information.
Control Settings
See SFG/SFNG technical data sheet for the appropriate
settings for your merchandiser. Maintain these parameters
to achieve near constant product temperatures. For all
multiplexing, defrost should be time terminated. Defrost
times should be as seen in SFG/SFNG technical data sheet.
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.
0°F / - 18°C or less air temperature. Adequate performance
is assured by the desired condition of the product in case.
Refrigeration Lines
Liquid
3/8” O.D.
NOTE:
Suction
5/8” O.D.
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 5/8”, 7/8”,
or 11/8”. Refer to the particular case you are hooking up.
Access to TX Valves and 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).
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.
7
Refrigeration (Cont'd)
Electronic Expansion Valve (Optional)
A wide variety of electronic expansion valves and case
controllers can be utilized. Please refer to EEV and
controller Hussmann’s information sheet. Sensors for
electronic expansion valves will be installed on the coil inlet,
coil outlet and in the discharge air. (Some supermarkets
require a 4th sensor in the return air). Case controllers will
be located in the electrical raceway or under the case.
Line Sizing - Refrigerant lines should be sized as shown
on the refrigeration legend that is furnished for the store
(not furnished by Hussmann). If a legend has not been
furnished, refer to the Hussmann Application Engineering
Manual for guidance.
Oil Traps - P-TRAPS (oil traps) must be installed at the
base of all suction line vertical risers.
Pressure Drop - Pressure drop can rob the system of
capacity. To keep the pressure drop to a minimum, keep the
refrigerant line run as short as possible using a minimum
number of elbows. Where elbows are required, use long
radius elbows only.
Insulation - The suction and liquid lines should be clamped
or taped together and insulated for a minimum of 30’ from
the merchandiser. Additional insulation is recommended
wherever condensation drippage is objectionable.
Thermostatic Expansion Valve Location
This device is located on the same side as the refrigeration
stub. An Sporlan balanced port expansion valve model
is furnished as standard equipment, unless otherwise
specified by customer.
Expansion Valve Adjustment
Expansion valves must be adjusted to fully feed the
evaporator. Before attempting any adjustments, make
sure the evaporator is either clear or very lightly covered
with frost, and that the fixture is within 10°F of its expected
operating temperature.
T-STAT Location
T-STATS are located within the electrical raceway.
Piping
For merchandisers with "electric" defrost, the suction
and liquid lines should be clamped or taped together
and insulated for a minimum of 30 feet. For models with
"KOOLGAS®" defrost, suction, and liquid lines should not
contact each other, and should be insulated separately for
a minimum of 30 feet.With either type defrost, additional
insulation for the balance of the liquid and suction lines is
required wherever condensation and drippage would be
objectionable.
The refrigerant line outlets are located under the fixture at
the left end when viewed from the back. Insulate suction
lines to prevent condensation dripping on the floor.
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,
determine 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.
6. Set the superheat for 5°F - 7°F.
Multiplexing - Piping of merchandisers operating on the
same refrigeration system may be run from merchandiser
to merchandiser through the end frame saddles provided
for this purpose. DO NOT RUN REFRIGERANT LINES
THROUGH MERCHANDISERS THAT ARE NOT THE
SAME REFRIGERATION SYSTEM as this may result in
poor refrigeration control and compressor failure.
8
Refrigeration (Cont'd)
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Electrical
Wiring Color Code
specified. Field wiring from the refrigeration control panel to
the merchandisers is required for refrigeration thermostats.
Case amperes are listed on the wiring diagram, but always
check the serial plate.
Ashrae Color Code
NOTE:
CASE MUST BE GROUNDED
NOTE:
All other manufacturers have no standard sensor codes.
Case Control Systems SENSOR COLOR
Manufacturer ® >
EIL
CPC
Location
Coil Inlet
Color
Blue
Blue
Part#
225-01-1755 225-01-3255
Color
Red
Red
Coil Outlet
Part#
225-01-1757 225-01-3123
Color
Green
Green
Discharge Air
Part#
225-01-1756 225-01-3260
Color
Purple
Green
Return Air
Part#
225-01-1758 225-01-3260
Color
White
Orange
Defrost Term.
Part#
225-01-0650 225-01-3254
Color
White
Blue
Liquid Line
Part#
225-01-0650 225-01-3255
Rear Close-off Panel
To perform electrical and refrigeration work, remove the rear
closure panel by loosening the sheet metal screws. Replace
when work is complete.
Electrical Connections - All wiring must be in compliance
with NEC and local codes. All electrical connections for the
non refrigerated model are to be made in the electrical panel.
Electrical connections for refrigerated models are made in
the electrical box on the back of the case behind the rear
close-off panel.
Field Wiring - Field wiring must be sized for components
amperes stamped on the serial plate. Actual ampere draw
may be less than specified. Always check the serial plate.
Post Construction Clean-up - After the first two weeks of a
major store remodel or new store operation, the grill should
be removed and the condensing unit and condenser face
cleaned due to the accumulated dirt and debris generated
during construction.
Refer to label affixed to case to determine the actual
configuration as checked in the “TYPE INSTALLED”
boxes.
Electrical Circuit Identification
Standard lighting for all models will be full length fluorescent
lamps located within the case at the top.
The switch controlling the lights, the plug provided for
digital scale, and the thermometer are located at the rear
of the case mullion.
Electrical Service Receptacles (When Applicable)
The receptacle that is provided on the exterior back of
these models is intended for computerized scales with a
fifteen amp maximum load, not for large motors or other
high wattage appliances. It should be wired to a dedicated
circuit.
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.
LED Driver Location
Drivers are located within the access panel that runs the
length of the rear of the case.
Field Wiring and Serial Plate Amperage
Field Wiring must be sized for component amperes printed
on the serial plate. Actual ampere draw may be less than
11
User Information
Stocking
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 operating temperature. Care should be taken
to place the bakery trays all the way to the front of the shelf.
This avoids blocking the rear refrigerated air discharge.
The load limit decals are affixed to the interior of the
merchandiser. Again, air discharge and return air flow
must be unobstructed at all times to provide proper
refrigeration.
There is also a row of vents located at the base of the front
glass, just above the front rub rail. These vents allow a
gentle air flow across the front glass from the ambient fans
that prevents any condensation on the glass. Do Not place
any signs or other restrictive objects on the front of the
merchandiser that will block these vents.
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 temperature 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 flow must be unobstructed at all
times to provide proper refrigeration.
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. 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.
Important Steps
1. Do not set temperature too cold, as this causes
product dehydration. See SFG/SFNG technical data
sheet for proper settings.
2. Temperature control should be by means of a
T-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.
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. It is
essential to establish and regulate cleaning procedures. This
will minimize bacteria causing discoloration which leads to
degraded product appearance and significantly shortening
product shelf life.
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.
The use of hoses and sage machines to clean the inside of
the cases is recommended and is an excellent way to clean
the coil fins and hard to reach corners of the interior of the
cases. Be sure to observe the warnings below when cleaning
the case.
Sanitizing solutions will not harm the interior bottom,
however, these solutions should always be used according to
Hussmann’s directions and should not contain Ammonia.
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. Allow cases to come to room temperature.
2. Scrub thoroughly, cleaning all surfaces, with soap
and hot water.
3. Rinse with hot water, but do not flood.
4. Apply the sanitizing solution according to
Hussmann’s directions.
5. Rinse thoroughly.
6. Dry completely before resuming operation.
12
User Information (Cont'd)
Stainless Steel Cleaning and Care
There are three basic things, which can break down your
stainless steel’s passivity layer and allow corrosion.
1. Mechanical Abrasion
Mechanical Abrasion means those things that
will scratch the steels surface. Steel Pads, wire
Brushes, and Scrapers are prime examples.
2. Water
Water comes out of our tap in varying degrees of
hardness. Depending on what part of the country
you live in, you may have hard or soft water. Hard
water may leave spots. Also, when heated, hard
water leaves deposits behind that if left to sit, will
break down the passive layer and rust your stainless
steel. Other deposits from food preparation and
service must be properly removed.
3. Chlorides
Chlorides are found nearly everywhere. They
are in water, food and table salt. One of the worst
perpetrators of chlorides can come from household
and industrial cleaners.
Don’t Despair! Here are a few steps that can help prevent
stainless steel rust.
1. Use the Proper Tools
When cleaning your stainless steel products, take
care to use non-abrasive tools. Soft Clothes and
plastic scouring pads will NOT harm the steel’s
passive layer. Stainless steel pads can also be
used but the scrubbing motion must be in the same
direction of the manufacturer’s polishing marks.
2. Clean With the Polish Lines
Some stainless steels come with visible polishing
lines or “grain”. When visible lines are present, you
should ALWAYS scrub in a motion that is parallel to
them. When the grain cannot be seen, play it safe
and use a soft cloth or plastic scouring pad.
3. Use Alkaline, Alkaline Chlorinated or
Non-chloride Containing Cleaners
While many traditional cleaners are loaded
with chlorides, the industry is providing an ever
increasing choice of non-chloride cleaners. If you
are not sure of your cleaner’s chloride content
contact your cleaner supplier. If they tell you that
your present cleaner contains chlorides, ask for
an alternative. Also, avoid cleaners containing
quaternary salts as they also can attack stainless
steel & cause pitting and rusting.
4. Treat your Water
Though this is not always practical, softening hard
water can do much to reduce deposits. There
are certain filters that can be installed to remove
distasteful and corrosive elements. Salts in a
properly maintained water softener are your friends.
If you are not sure of the proper water treatment, call
a treatment specialist.
5. Keep your Food Equipment Clean
Use alkaline, alkaline chlorinated or non-chlorinated
cleaners at recommended strength. Clean
frequently to avoid build-up of hard, stubborn stains.
If you boil water in your stainless steel equipment,
remember the single most likely cause of damage is
chlorides in the water. Heating cleaners that contain
chlorides has a similar effect.
6. RINSE, RINSE, RINSE
If chlorinated cleaners are used you must rinse,
rinse, rinse and wipe dry immediately. The sooner
you wipe off standing water, especially when sit
contains cleaning agents, the better. After wiping the
equipment down, allow it to air dry for the oxygen
helps maintain the stainless steel’s passivity film.
7. Never Use Hydrochloric Acid (Muriatic Acid) on
Stainless Steel
8. Regularly Restore/Passivate Stainless Steel
13
User Information (Cont'd)
Cleaning Mirrors
Only use a soft cloth and mild glass cleaner for cleaning
any glass or mirrored components. Be sure to rinse and/or
dry completely.
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 the glass clean.
Windex® or Glass Plus® are the only solutions recommended
to be used to clean the non-glare glass. The damage to the
glass from improper, caustic 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 that the glass be fully opened and
covered to prevent solutions from splashing onto the
glass and ruining the coating on the inside.
Plexiglass and Acrylic Care
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.
CLEANING PRECAUTIONS
When cleaning:
• Do not use high pressure water hoses
• Do not introduce water faster than waste outlet can drain
• NEVER ON A SELF CONTAINED UNIT WITH AN EVAPORATOR FAN
• NEVER USE A CLEANING OR SANITIZING SOLUTION THAT HAS AN OIL
BASE (these will dissolve the butyl sealants) or an AMMONIA BASE
(this will corrode the copper componets 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)
Cleaning Glass and Mirrors
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.
Cleaning
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.
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.
14
Maintenance
Tips and Troubleshooting
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.
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.
Replacing LED Lights
This lamp has been treated to resist breakage and must be
replaced with a similarly treated lamp in order to maintain
NSF CODE 4.28.1
compliance with NSF Standards.
Contact HUSSMANN Chino for replacement
1-800-395-9229 x 2131
IMPORTANT
INFORMATION
Please read these instructions completely
before beginning case installation
Evaporator Fans
The evaporator fans are located in front of the CAD,
directly beneath the display pans. Should fans or blades
need servicing, always replace fan blades with the raised
embossed side of the blade TOWARD THE MOTOR.
Copper Coils
The copper coils used in Hussmann merchandisers may
be repaired in the field. Materials are available from local
refrigeration wholesalers.
Hussmann recommends using #15 Sil-Fos for repairs.
15
Electrical Wiring Diagrams
Model
Description
Size
Diagram #
SFG, SFNG
SFG/SFNG-4-R ELECTRIC DEFROST
4'
3020197
SFG/SFNG-5-R ELECTRIC DEFROST
5'
3020198
SFG/SFNG-6-R ELECTRIC DEFROST
6'
3020200
SFG/SFNG-8-R ELECTRIC DEFROST
8'
3020199
SFG/SFNG-12-R ELECTRIC DEFROST
12'
3020201
SFG/SFNG-4-R KOOLGAS DEFROST
4'
3020306
SFG/SFNG-5-R KOOLGAS DEFROST
5'
3020307
SFG/SFNG-6-R KOOLGAS DEFROST
6'
3020308
SFG/SFNG-8-R KOOLGAS DEFROST
8'
3020309
SFG/SFNG-12-R KOOLGAS DEFROST
12'
3020310
16
CIRCUIT #1
LOADING
120V
L1 1.0
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004994 2016/11/29
REV BY CHKD BY APPR BY
CB
CB
CB
OPTIONAL
CIRCUIT #3
LIQUID LINE SOLENOID
VALVE
RJ-45 NETWORK JACK
125-01-0202
4' LED LIGHT
ANTI-SWEAT HEATER
20W .17A@ 120 VAC
0495009
WHT # 14
BLK # 14
BUNDLE
YELLOW
BLK # 14
LIGHT CIRCUIT= 0.20A 21.1W
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
CIRCUIT #2
LOADING
208V
L1 5.77
L2 5.77
3' LED LIGHT
3' LED LIGHT
OPTIONAL DRY
SHELF LIGHTING
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
GLASS HEATER
8W .07A@ 120 VAC
1H65889150
KLIXONwTERMINATION
0398557
Wiring Diagrams
L1 N
~120 VAC - 50/60 Hz
3
L1 N
~120 VAC - 50/60 Hz
MCA= .21A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
WHT # 14
BLK # 14
WHT # 14
L1 N
~120 VAC - 50/60 Hz
MCA= .15A
MOP= 15A
BUNDLE
PURPLE
L1 N
~120 VAC - 50/60 Hz
MCA= .09A
MOP= 15A
BLUE
WIRE
L1
L2
CIRCUIT 2~208 VAC -50/60 Hz.
MCA= 7.2A
MOP= 20A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 11-29-16
DRAWN BY -CRAIG BOOREY
ECN-CAP-0004994
REVIEWED BY -CRAIG BOOREY
REF SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG4-R ELECTRIC
DEFROST
3020197 A
HUSSMANN_GDF_1.1 SHEET SIZE D
L1 N
~120 VAC - 50/60 Hz
MCA= .24A
MOP= 15A
BLK # 14
WHT # 14
BLK # 14
DEFROST HEATER
1200W 5.77A @ 208V
00000259
WHT # 14
L1 N
~120 VAC - 50/60 Hz
MCA= 0.58A
MOP= 15A
SWITCH TOGGLE
125-01-0307
RED # 12
M
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
BLK # 12
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
0477653
LED DRIVER
BUNDLE
PURPLE
2
OPTIONAL VIEW ENDS ONLY
BLUE -
WARMER
PRODUCT STOP
HOLDER
1H36820550
50 WATTS
0.46AMP@120V
BLK # 14
17
RED +
1
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004994 2016/11/29
OPTIONAL
CIRCUIT #3
LIQUID LINE SOLENOID
VALVE
RJ-45 NETWORK JACK
125-01-0202
5' LED LIGHT
BLK # 14
BUNDLE
YELLOW
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
4' LED LIGHT
CIRCUIT #2 LIGHT CIRCUIT= 0.26A 27.6W
LOADING
208V
L1 9.62
L2 9.62
4' LED LIGHT
OPTIONAL DRY
SHELF LIGHTING
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
GLASS HEATER
9W .08A@ 120 VAC
1H65890
KLIXONwTERMINATION
0398557
3
BLUE -
L1 N
~120 VAC - 50/60 Hz
MCA= .32A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .15A
MCA= .28A
MOP= 15A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= .10A
MOP= 15A
RED # 12
WHT # 14
BUNDLE
PURPLE
BLK # 14
WHT # 14
BLK # 14
WHT # 14
DEFROST HEATER
2000W 9.62A @ 208V
00000260
BLK # 14
WHT # 14
SWITCH TOGGLE
125-01-0307
BLK # 12
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
M
LED DRIVER
L1 N
~120 VAC - 50/60 Hz
MCA= 0.73A
MOP= 15A
2
OPTIONAL VIEW ENDS ONLY
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
0477653
BLK # 14
18
RED +
1
BUNDLE
PURPLE
Wiring Diagrams (Cont'd)
ANTI-SWEAT HEATER
27W .22A@ 120 VAC
1H84984
L1 N
~120 VAC - 50/60 Hz
WARMER
PRODUCT STOP
HOLDER
1H44313550
63 WATTS
0.58AMP@120V
REV BY CHKD BY APPR BY
CB
CB
CB
BLUE
WIRE
L1
L2
CIRCUIT 2~208 VAC -50/60 Hz.
MCA= 12.0A
MOP= 20A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 11-29-16
DRAWN BY -CRAIG BOOREY
ECN-CAP-0004994
REVIEWED BY -CRAIG BOOREY
REF SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG5-R ELECTRIC
DEFROST
3020198 A
HUSSMANN_GDF_1.1 SHEET SIZE D
CIRCUIT #1
LOADING
120V
L1 1.3
CIRCUIT #1
LOADING
120V
L1 1.4
REV BY CHKD BY APPR BY
CB
CB
CB
OPTIONAL
CIRCUIT #3
RJ-45 NETWORK JACK
125-01-0202
3' LED LIGHT
WHT # 14
LIGHT CIRCUIT= 0.13A 14.2W
BUNDLE
YELLOW
BLK # 14
GFCI DUPLEX
125-01-3178
GRN # 14
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
GLASS HEATER
10W .09A@ 120 VAC
1H65891150
KLIXONwTERMINATION
0398557
L1 N
~120 VAC - 50/60 Hz
3
BLUE -
L1 N
~120 VAC - 50/60 Hz
MCA= .16A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .30A
MCA= .46A
MOP= 15A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
WHT # 14
BUNDLE
PURPLE
BLK # 14
WHT # 14
BLK # 14
DEFROST HEATER
2000W 9.62A @ 208V
00000260
WHT # 14
WHT # 14
SWITCH TOGGLE
125-01-0307
L1 N
~120 VAC - 50/60 Hz
MCA= .11A
MOP= 15A
RED # 12
M
BLK # 14
L1 N
~120 VAC - 50/60 Hz
MCA= 1.16A
MOP= 15A
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
BLK # 12
M
LED DRIVER
BUNDLE
PURPLE
2
OPTIONAL VIEW ENDS ONLY
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
(2) 0477653
BLK # 14
19
RED +
1
WARMER
PRODUCT STOP
HOLDER
1H36821550
75 WATTS
0.69AMP@120V
Wiring Diagrams (Cont'd)
ANTI-SWEAT HEATER
30W .27A@ 120 VAC
0495006
BLUE
WIRE
L1
L2
CIRCUIT 2~208 VAC -50/60 Hz.
MCA= 12.0A
MOP= 20A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 11-29-16
DRAWN BY -CRAIG BOOREY
ECN-CAP-0004994
REVIEWED BY -CRAIG BOOREY
REF SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG6-R ELECTRIC
DEFROST
3020200 A
HUSSMANN_GDF_1.1 SHEET SIZE D
3' LED LIGHT
LIQUID LINE SOLENOID
VALVE
CIRCUIT #2
LOADING
208V
L1 9.62
L2 9.62
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004994 2016/11/29
CIRCUIT #1
LOADING
120V
L1 1.8
REV BY CHKD BY APPR BY
CB
CB
CB
OPTIONAL
CIRCUIT #3
LIQUID LINE SOLENOID
VALVE
4' LED LIGHT
RJ-45 NETWORK JACK
125-01-0202
BUNDLE
YELLOW
BLK # 14
LIGHT CIRCUIT= 0.16A 17.4W
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
GLASS HEATER
12W .11A@ 120 VAC
1H64681
KLIXONwTERMINATION
0398557
L1 N
~120 VAC - 50/60 Hz
3
BLUE -
L1 N
~120 VAC - 50/60 Hz
MCA= .20A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .30A
MCA= .46A
MOP= 15A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
WHT # 14
BUNDLE
PURPLE
BLK # 14
WHT # 14
BLK # 14
DEFROST HEATER
2250W 10.8A @ 208V
00000262
WHT # 14
WHT # 14
SWITCH TOGGLE
125-01-0307
L1 N
~120 VAC - 50/60 Hz
MCA= .14A
MOP= 15A
RED # 12
M
BLK # 14
L1 N
~120 VAC - 50/60 Hz
MCA= 1.16A
MOP= 15A
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
BLK # 12
M
LED DRIVER
BUNDLE
PURPLE
2
OPTIONAL VIEW ENDS ONLY
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
(2) 0477653
BLK # 14
20
RED +
1
WARMER
PRODUCT STOP
HOLDER
1H36822550
100 WATTS
0.93AMP@120V
Wiring Diagrams (Cont'd)
ANTI-SWEAT HEATER
40W .37A@ 120 VAC
0495007
BLUE
WIRE
L1
L2
CIRCUIT 2~208 VAC -50/60 Hz.
MCA= 13.5A
MOP= 20A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 11-29-16
DRAWN BY -CRAIG BOOREY
ECN-CAP-0004994
REVIEWED BY -CRAIG BOOREY
REF SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG8-R ELECTRIC
DEFROST
3020199 A
HUSSMANN_GDF_1.1 SHEET SIZE D
4' LED LIGHT
CIRCUIT #2
LOADING
208V
L1 10.8
L2 10.8
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004994 2016/11/29
CIRCUIT #1
LOADING
120V
L1 2.7
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004994 2016/11/29
REV BY CHKD BY APPR BY
CB
CB
CB
OPTIONAL
CIRCUIT #3
RJ-45 NETWORK JACK
125-01-0202
4' LED LIGHT
BUNDLE
YELLOW
BLK # 14
LIGHT CIRCUIT= 0.24A 26.1W
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
GLASS HEATER
16W .14A@ 120 VAC
1H64682
KLIXONwTERMINATION
0398557
L1 N
~120 VAC - 50/60 Hz
3
BLUE -
L1 N
~120 VAC - 50/60 Hz
MCA= .30A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .45A
MCA= .69A
MOP= 15A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= .28A
MOP= 15A
RED # 12
BUNDLE
PURPLE
BLK # 14
WHT # 14
BLK # 14
DEFROST HEATER
3550 13.9A @ 208V
1H79631550
WHT # 14
WHT # 14
SWITCH TOGGLE
125-01-0307
BLK # 12
M
BLK # 14
L1 N
~120 VAC - 50/60 Hz
MCA= 1.74A
MOP= 15A
M
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
WHT # 14
M
LED DRIVER
BUNDLE
PURPLE
2
OPTIONAL VIEW ENDS ONLY
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
(3) 0477653
BLK # 14
21
RED +
1
WARMER
PRODUCT STOP
HOLDER
1H36823550
150 WATTS
1.39AMP@120V
Wiring Diagrams (Cont'd)
ANTI-SWEAT HEATER
60W .55A@ 120 VAC
0495008
BLUE
WIRE
L1
L2
CIRCUIT 2~208 VAC -50/60 Hz.
MCA= 17.4A
MOP= 25A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 11-29-16
DRAWN BY -CRAIG BOOREY
ECN-CAP-0004994
REVIEWED BY -CRAIG BOOREY
REF SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG12-R ELECTRIC
DEFROST
3020201 A
HUSSMANN_GDF_1.1 SHEET SIZE D
CIRCUIT #2
LOADING
208V
L1 13.9
L2 13.9
4' LED LIGHT
4' LED LIGHT
LIQUID LINE SOLENOID
VALVE
CIRCUIT #1
LOADING
120V
L1 1.1
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004995 2016/12/01
LIGHT CIRCUIT= 0.24A 26.1W
OPTIONAL
CIRCUIT #3
LIQUID LINE SOLENOID
VALVE
4' LED LIGHT
RJ-45 NETWORK JACK
125-01-0202
RETURN AIR HEATER
120W 1.04A@ 120V
125-02-3033
BLK # 14
BUNDLE
YELLOW
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
4' LED LIGHT
4' LED LIGHT
OPTIONAL DRY
SHELF LIGHTING
CIRCUIT #2
LOADING
120V
L1 2.1
REV BY CHKD BY APPR BY
CB
CB
CB
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
ANTI-SWEAT HEATER
20W .17A@ 120 VAC
0495009
Wiring Diagrams (Cont'd)
GLASS HEATER
8W .07A@ 120 VAC
1H65889
OPTIONAL VIEW ENDS ONLY
BLUE -
WARMER
PRODUCT STOP
HOLDER
1H36821550
50 WATTS
0.46 AMP@120V
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
0477653
M
LED DRIVER
DRAIN HEATER
110W 1.02A@ 120V
0488967
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
KLIXONw THERMODISK
DISC TYPE 33
0481370
3
1
2
L1 N
~120 VAC - 50/60 Hz
MCA= .30A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= .09A
MOP= 15A
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .15A
MCA= .21A
MOP= 15A
MOP= 15A
BUNDLE
PURPLE
L1
N
~120 VAC -50/60 Hz.
MCA= 2.6A
MOP= 15A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 12-1-16
ECN-CAP-0004995
DRAWN BY -CRAIG BOOREY
REF REVIEWED BY -CRAIG BOOREY
SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG4-R KOOLGAS
DEFROST
3020306 A
HUSSMANN_GDF_1.1 SHEET SIZE D
L1 N
~120 VAC - 50/60 Hz
MCA= .58A
MOP= 15A
BLK # 14
BUNDLE
PURPLE
WHT # 14
SWITCH TOGGLE
125-01-0307
BLK # 14
22
RED +
L1 N
~120 VAC - 50/60 Hz
CIRCUIT #1
LOADING
120V
L1 1.3
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004995 2016/12/01
LIGHT CIRCUIT= 0.26A 27.6W
OPTIONAL
CIRCUIT #3
LIQUID LINE SOLENOID
VALVE
5' LED LIGHT
RJ-45 NETWORK JACK
125-01-0202
RETURN AIR HEATER
123W 1.14A@ 120V
125-02-3034
BLK # 14
BUNDLE
YELLOW
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
4' LED LIGHT
4' LED LIGHT
OPTIONAL DRY
SHELF LIGHTING
CIRCUIT #2
LOADING
120V
L1 2.2
REV BY CHKD BY APPR BY
CB
CB
CB
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
ANTI-SWEAT HEATER
27W .22A@ 120 VAC
1H84984
Wiring Diagrams (Cont'd)
GLASS HEATER
9W .08A@ 120 VAC
1H65890
OPTIONAL VIEW ENDS ONLY
BLUE -
WARMER
PRODUCT STOP
HOLDER
1H36821550
62.5 WATTS
0.56 AMP@120V
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
0477653
M
LED DRIVER
DRAIN HEATER
110W 1.02A@ 120V
0488967
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
KLIXONw THERMODISK
DISC TYPE 33
0481370
3
1
2
L1 N
~120 VAC - 50/60 Hz
MCA= .32A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= .10A
MOP= 15A
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .15A
MCA= .28A
MOP= 15A
MOP= 15A
BUNDLE
PURPLE
L1
N
~120 VAC -50/60 Hz.
MCA= 2.7A
MOP= 15A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 12-1-16
ECN-CAP-0004995
DRAWN BY -CRAIG BOOREY
REF REVIEWED BY -CRAIG BOOREY
SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG5-R KOOLGAS
DEFROST
3020307 A
HUSSMANN_GDF_1.1 SHEET SIZE D
L1 N
~120 VAC - 50/60 Hz
MCA= 0.7A
MOP= 15A
BLK # 14
BUNDLE
PURPLE
WHT # 14
SWITCH TOGGLE
125-01-0307
BLK # 14
23
RED +
L1 N
~120 VAC - 50/60 Hz
CIRCUIT #1
LOADING
120V
L1 1.4
REV BY CHKD BY APPR BY
CB
CB
CB
OPTIONAL
CIRCUIT #3
RJ-45 NETWORK JACK
125-01-0202
3' LED LIGHT
RETURN AIR HEATER
180W 1.67A@ 120V
125-01-3032
BLK # 14
BUNDLE
YELLOW
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
LIGHT CIRCUIT= 0.11A 12.4W
3' LED LIGHT
LIQUID LINE SOLENOID
VALVE
CIRCUIT #2
LOADING
120V
L1 2.7
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004995 2016/12/01
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
ANTI-SWEAT HEATER
30W .27A@ 120 VAC
0495006
Wiring Diagrams (Cont'd)
GLASS HEATER
18W .15A@ 120 VAC
1H65891
OPTIONAL VIEW ENDS ONLY
BLUE -
WARMER
PRODUCT STOP
HOLDER
1H36821550
75 WATTS
0.63 AMP@120V
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
(2) 0477653
LED DRIVER
M
DRAIN HEATER
110W 1.02A@ 120V
0488967
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
M
KLIXONw THERMODISK
DISC TYPE 33
0481370
3
1
2
L1 N
~120 VAC - 50/60 Hz
MCA= .14A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= .18A
MOP= 15A
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .30A
MCA= .34A
MOP= 15A
MOP= 15A
BUNDLE
PURPLE
L1
N
~120 VAC -50/60 Hz.
MCA= 3.6A
MOP= 15A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 12-1-16
ECN-CAP-0004995
DRAWN BY -CRAIG BOOREY
REF REVIEWED BY -CRAIG BOOREY
SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG6-R KOOLGAS
DEFROST
3020308 A
HUSSMANN_GDF_1.1 SHEET SIZE D
L1 N
~120 VAC - 50/60 Hz
MCA= .79A
MOP= 15A
BLK # 14
BUNDLE
PURPLE
WHT # 14
SWITCH TOGGLE
125-01-0307
BLK # 14
24
RED +
L1 N
~120 VAC - 50/60 Hz
CIRCUIT #1
LOADING
120V
L1 1.9
REV BY CHKD BY APPR BY
CB
CB
CB
OPTIONAL
CIRCUIT #3
RJ-45 NETWORK JACK
125-01-0202
4' LED LIGHT
RETURN AIR HEATER
84W .70A@ 120V
125-02-1104
BLK # 14
BUNDLE
YELLOW
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
LIGHT CIRCUIT= 0.16A 17.6W
4' LED LIGHT
LIQUID LINE SOLENOID
VALVE
CIRCUIT #2
LOADING
120V
L1 2.6
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004995 2016/11/30
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
ANTI-SWEAT HEATER
40W .37A@ 120 VAC
0495007
Wiring Diagrams (Cont'd)
GLASS HEATER
22W .18A@ 120 VAC
1H64681
OPTIONAL VIEW ENDS ONLY
BLUE -
WARMER
PRODUCT STOP
HOLDER
1H36822550
100 WATTS
0.93 AMP@120V
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
(2) 0477653
LED DRIVER
M
DRAIN HEATER
200W 1.85A@ 120V
0465907
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
M
KLIXONw THERMODISK
DISC TYPE 33
0481370
3
1
2
L1 N
~120 VAC - 50/60 Hz
MCA= .20A
MOP= 15A
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= .14A
MOP= 15A
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .30A
MCA= .69A
MOP= 15A
MOP= 15A
BUNDLE
PURPLE
L1
N
~120 VAC -50/60 Hz.
MCA= 3.2A
MOP= 15A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 11-30-16
ECN-CAP-0004995
DRAWN BY -CRAIG BOOREY
REF REVIEWED BY -CRAIG BOOREY
SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG8-R KOOLGAS
DEFROST
3020309 A
HUSSMANN_GDF_1.1 SHEET SIZE D
L1 N
~120 VAC - 50/60 Hz
MCA= 1.16A
MOP= 15A
BLK # 14
BUNDLE
PURPLE
WHT # 14
SWITCH TOGGLE
125-01-0307
BLK # 14
25
RED +
L1 N
~120 VAC - 50/60 Hz
CIRCUIT #1
LOADING
120V
L1 2.7
REVISION HISTORY
REVISION DESCRIPTION
RELEASED TO PRODUCTION
REV
ECN
DATE
A ECN-CAP-0004995 2016/11/30
REV BY CHKD BY APPR BY
CB
CB
CB
OPTIONAL
CIRCUIT #3
RJ-45 NETWORK JACK
125-01-0202
4' LED LIGHT
BUNDLE
YELLOW
RETURN AIR HEATER
360W 3.1A@ 115V
125-01-3030
BLK # 14
LIGHT CIRCUIT= 0.24A 26.1W
GRN # 14
GFCI DUPLEX
125-01-3178
WHT # 14
CIRCUIT #2
LOADING
120V
L1 6.8
4' LED LIGHT
4' LED LIGHT
LIQUID LINE SOLENOID
VALVE
ALL SINGLE
RECEPTACLES TO BE
TIED TO DUPLEX GFCI
RECEPTACLE
WHT # 14
BLK # 14
INCOMING POWER
~120 VAC -60 Hz
TAG WHITE
AND BLACK
ANTI-SWEAT HEATER
60W .55A@ 120 VAC
0495008
Wiring Diagrams (Cont'd)
GLASS HEATER
16W .14A@ 120 VAC
1H64682
OPTIONAL VIEW ENDS ONLY
BLUE -
WARMER
PRODUCT STOP
HOLDER
1H36823550
150 WATTS
1.39AMP@120V
EVAPORATOR FAN MOTOR
.12A 4W @ 120VAC
(3) 0477653
M
LED DRIVER
M
KLIXONw THERMODISK
DISC TYPE 33
0481370
3
1
2
NOTES:
CASE MUST BE GROUNDED
WHEN PASSING WIRES THROUGH METAL HOLES A GROMMET MUST BE USED
L1 N
~120 VAC - 50/60 Hz
MCA= 1.39A
MOP= 15A
L1 N
~120 VAC - 50/60 Hz
MCA= .28A
MOP= 15A
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
BLK # 14
WHT # 14
L1 N
L1 N
~120 VAC - 50/60 Hz ~120 VAC - 50/60 Hz
MCA= .45A
MCA= .69A
MOP= 15A
MOP= 15A
BUNDLE
PURPLE
L1
N
~120 VAC -50/60 Hz.
MCA= 8.5A
MOP= 15A
TO DEFROST CONTROL
PANEL
MATERIAL - N/A
DATE DRAWN - 11-30-16
ECN-CAP-0004995
DRAWN BY -CRAIG BOOREY
REF REVIEWED BY -CRAIG BOOREY
SHEET 1 OF 1
APPROVED BY - CRAIG BOOREY
UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES.
TOLERANCES ARE:
THIRD
DECIMALS .XX u.03, .XXX u.010
ANGLE
ANGLES u 2v
PROJECTION
DIAGRAM-SFG/SFNG12-R KOOLGAS
DEFROST
3020310 A
HUSSMANN_GDF_1.1 SHEET SIZE D
L1 N
~120 VAC - 50/60 Hz
MCA= .30A
MOP= 15A
BLK # 14
L1 N
~120 VAC - 50/60 Hz
MCA= 1.74A
MOP= 15A
M
DRAIN HEATER
400W 3.70A@ 120V
0465908
WARMER
125-01-0767
TYCO THERMAL
CONTROLS
10BTV1-CR
120 WATTS
1.11AMP@120V
(4) 3' FROSTX
SWITCH TOGGLE
125-01-0307
WHT # 14
BUNDLE
PURPLE
BLK # 14
26
RED +
L1 N
~120 VAC - 50/60 Hz
Troubleshooting Guide
Problem
Case temperature is
too warm.
Possible Cause
Possible Solution
Ambient conditions may
be affecting the case
operation.
Check case position in store. Is the case located near an
open door, window, electric fan or air conditioning vent that
may cause air currents? Case must be located minimum
15 Ft away from doors or windows. Cases are designed to
operate at 55% Relative humidity and a temperature of 75°F.
Discharge air temp is out
of spec.
Check evaporator fan operation. Check electrical connections
and input voltage.
Fans are installed backwards. Check airflow direction.
Fan blades are installed incorrectly. Make sure fan blades
have correct pitch and are per specification.
Check to see that fan plenum is installed correctly. It should
not have any gaps.
Check suction pressure and insure that it meets factory
specifications.
Case is in defrost.
Check defrost settings. See Technical Specifications section.
Product load may be over
its limits blocking airflow.
Redistribute product so it does not exceed load level. There
is a sticker on the inside of the case indicating what the
maximum load line is.
Coil is freezing over.
Return air is blocked, make sure debris is not blocking the
intake section.
Coil close-offs are not installed. Inspect coil to make sure
these parts are on the case.
Case temperature is
too cold.
Condensation on
glass.
Condensing coil or
evaporator coil is clogged
or dirty.
Clean coil.
The t-stat temp is set too
low.
Check settings. See Technical Specifications section.
Ambient conditions may
be affecting the case
operation.
Check case position in store. Is the case located near an
open door, window, electric fan or air conditioning vent that
may cause air currents? Case must be located minimum
15 Ft away from doors or windows. Cases are designed to
operate at 55% Relative humidity and a temperature of 75°F.
Ambient conditions may
be affecting the case
operation.
Check case position in store. Is the case located near an
open door, window, electric fan or air conditioning vent that
may cause air currents? Case must be located minimum
15 Ft away from doors or windows. Cases are designed to
operate at 55% Relative humidity and a temperature of 75°F.
Inadequate air circulation. Check if air sweep fans are functioning, check electrical
connections.
There is not enough heat
provided in the airflow.
Check if air sweep heater is functioning, check electrical
connections.
There are glass gaps on
the side of the case.
See glass adjustment section.
Glass is not completely
shut.
Close glass correctly.
27
Troubleshooting (Cont'd)
Problem
Water has pooled
under case.
Possible Cause
Possible Solution
Case drain is clogged.
Clear drain.
PVC drains under case
may have a leak.
Repair as needed.
Case tub has unsealed
opening.
Seal as needed.
If the case is in a lineup, case to case joint is
missing or unsealed.
Install case to case joint and seal as needed.
Evaporator pan is
Check electrical connection to evaporator pan. Check float
overflowing (if applicable). assembly, it should move freely up and down the support
stem. Clear any debris.
Case is not draining
properly.
Case is not level.
Level the case.
Drain screen is plugged.
Clean drain screen and remove any debris.
Drain or P-trap is clogged. Clear any debris.
Frost or ice on
evaporator coil.
Evaporator fans are not
functioning.
Check electrical connections.
Defrost clock is not
functioning.
Case should be serviced by a qualified service technician.
Coil is freezing over.
Return air is blocked, make sure debris is not blocking the
intake section.
Coil close-offs are not installed. Inspect coil to make sure
these parts are on the case.
Large gap is visible
Glass Height adjusters
on bottom of front
need to be adjusted.
glass or glass can't be
opened because it is
too low.
See Glass Adjustment section.
Large gaps are visible
in between glass
panels or glass rubs
against end panel.
Glass/glass clamp
assembly needs to be
adjusted.
See Glass Adjustment section.
Front glass does not
stay open and falls
closed.
Glass shock/piston may
need to be replaced.
Case should be serviced by a qualified service technician.
Lights do not come
on.
LED Driver/light socket
wiring.
Check electrical connections. See Electrical Section and
check wiring diagram.
Driver needs to be
replaced.
Case should be serviced by a qualified service technician.
See Electrical Section.
Lamp socket needs to be
replaced.
Case should be serviced by a qualified service technician.
Lamp needs to be
replaced.
See Maintenance Section.
Light Switch needs to
replaced.
Case should be serviced by a qualified service technician.
28
Appendices
Appendix A. - Temperature Guidelines - Refrigerated
The refrigerators should be operated according to the
manufacturer’s published engineering specifications
for entering 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.
1.3 A clogged waste outlet blocks refrigeration. The
installer 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
refrigerator, which includes such items as:
a) Initial temperature performance, Coils should
be properly fed with a refrigerant according to
manufacturer’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 ascertain that they are within the limits
prescribed by Hussmann.
d) Complete start-up procedures should include
checking through a defrost to make certain
of its adequate frequency and length without
substantially exceeding the actual needs.
This should include checking the electrical
or refrigerant circuits to make sure that
defrosts are correctly programmed for all the
refrigerators connected to each refrigeration
system.
e) Recording instruments should be used to
check performance.
Appendix C. - Field Recommendations - Refrigerated
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 (see 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.
Table 1
Typical Entering
Air Temperature
Type of Refrigerator
I. OPEN DISPLAY
A. Non frozen:
1) Meat
2) Dairy/Deli
3) Produce
a. Processed
b. Unprocessed
B. Frozen
C. Ice Cream
II. CLOSED DISPLAY
A. Non frozen:
1) Meat
2) Dairy/Deli
3) Produce
a. Processed
b. Unprocessed
B. Frozen
C. Ice Cream
Single Deck
Multi Deck
I. Open Display Styles
28°F
32°F
36°F
45°F
0°F
-5°F
34°F
34°F
36°F
45°F
0°F
-5°F
Service Case
Reach-In
II. Closed Display Styles
Appendix B. - Application Recommendations Refrigerated
1.0 Temperature performance is critical for controlling
bacteria growth. Therefore, the following
recommendations are included in the standard.
They are based on confirmed field experience
over many years.
1.1 The installer is responsible for following the
installation instructions and recommendations
provided by Hussmann for the installation
of each individual type refrigerator.
1.2 Refrigeration piping should be sized according to
the equipment manufacturer’s recommendations
and installed in accordance with normal
refrigeration practices. Refrigeration piping
should be insulated according to Hussmann’s
recommendations.
NOTE:
29
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
potentially hazardous food.
Appendices (Cont'd)
1.1 The following recommendations are made
for the purpose of arriving at easily taken and
understood data which, coupled with other
observations, may be used to determine whether
a display refrigerator is working as intended:
a) INSTRUMENT - A stainless steel stem-type
thermometer 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).
b) LOCATION - The probe or sensing element
of the thermometer should be located in
the airstream 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.
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. 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?
5. Is a dumped display causing turbulent air
flow and 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?
9. Are display signs blocking or diverting
airflow?
10. Are the coils of the refrigerator iced up?
11. Is the store ambient over 75°F, 55% RH
as set forth in ASHRAE Standard 72 and
ASHRAE Standard 117?
12. Are the shelf positions, number, and size
other than recommended by Hussmann?
13. Is there an improper application or control
system?
14. Is the evaporator fan motor/blade
inoperative?
15. Is the defrost time excessive?
16. Is the defrost termination, thermostat (if
used) set too high?
17. Are the refrigerant controls incorrectly
adjusted?
18. Is the air entering the condenser above
design conditions? Are the condenser fins
clear of dirt, dust, etc.?
19. Is there a shortage of refrigerant?
f) READING - The thermometer reading should
be made only after it has been allowed to
stabilize, i.e., maintain a constant reading.
Loading Product: Cases should be allowed
to heat up for one hour before product is
loaded. Temperature adjustments: Allow
4 hours after adjustment has been made
before testing pulp temperature of product.
g) OTHER OBSERVATIONS - Other
observations should be made which may
indicate operating problems, such as
unsatisfactory product, feel/appearance.
Appendix D. - Recommendations to User Refrigerated
1.0 Hussmann Corporation provides instructions
and recommendations for proper periodic
cleaning. The user will be responsible for
such cleaning, including the cleaning of low
temperature equipment within the compartment
and the cooling coil area(s). Cleaning practices,
particularly with respect to proper refrigerator
unloading and warm-up, must be in accordance
with applicable recommendations.
30
Appendices (Cont'd)
d) Care must be taken when cross
merchandising products to ensure that
potentially hazardous vegetable products are
not placed in non refrigerated 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 processing area except for the few
moments it is being handled in processing.
When a cut or tray of meat is not to be
worked on immediately, the procedure should
call for returning it to refrigeration.
h) Keep tools clean and sanitized. Since
mechanical equipment is used for fresh
meat processing, all such equipment should
be cleaned at least daily and each time
a different kind of meat product comes in
contact with the tool or equipment.
i) Make sure that all refrigeration equipment is
installed and adjusted in strict accordance
with the manufacturer’s recommendations.
j) See that all storage and refrigeration
equipment is kept in proper working order by
routine maintenance.
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 accumulating. Actual use and
products may dictate more frequent 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 drippage
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 compartments
with detergent and water will keep the equipment
presentable and prevent grime buildup.
1.2 Load levels as defined by the manufacturer must
be observed.
1.3 The best preservation is achieved by following
these rules:
a) Buy quality products.
b) Receive perishables from transit equipment
at the ideal temperature for the particular
product.
c) Expedite perishables to the store’s storage
equipment to avoid unnecessary warm-up
and prolonged temperature recovery. Food
store refrigerators are not food chillers nor
can they reclaim quality lost through previous
mishandling.
For further technical information, please log on to http://www.hussmann.com/products/SCSS.htm
31
Service Record
Last service date:
By:
_______________
__________________________________________________________________________________________________
_______________
__________________________________________________________________________________________________
_______________
__________________________________________________________________________________________________
_______________
__________________________________________________________________________________________________
_______________
__________________________________________________________________________________________________
_______________
__________________________________________________________________________________________________
_______________
__________________________________________________________________________________________________
/Chino
The MODEL NAME and SERIAL NUMBER is required in order to
provide you with the correct parts and information for your particular
unit.
They can be found on a small metal plate on the unit.
Please note them below for future reference.
Additional copies of this publication may be obtained by contacting:
Hussmann® Chino
13770 Ramona Avenue • Chino, California 91710
(909) 628-8942 FAX
(909) 590-4910
(800) 395-9229
MODEL:
SERIAL NUMBER:
32
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