hussman SCSS, SCSS-SL User Manual
Manual
Installation
& Operation
REV. 0108
/Chino
SCSS / SCSS-SL
SERVICE BAKERY
SCSS / SCSS-SL
SERVICE BAKERY
P/N IGSSB-SCSS / SCSS-SL-0108
INSTALLATION & OPERATION GUIDE
Table of Contents
IGSSB-SCSS / SCSS-SL-0108
General Instructions
THIS BOOKLET CONTAINS INFORMATION ON:
General Instructions ................................................. 2
Cut & Plan Views....................................................... 4
Installation ................................................................. 5
LEVELING.............................................................................................................. 5
Plumbing .................................................................... 6
WASTE OUTLET AND P-TRAP .............................................................................. 6
JOINT TRIM........................................................................................................... 6
Refrigeration ............................................................. 7
T-STAT LOCATION.................................................................................................. 8
Condensing Unit Installation Requirements ....................................................... 8
Electrical .................................................................... 9
WIRING COLOR CODE ......................................................................................... 9
ASHRAE COLOR CODE.......................................................................................... 9
User Information ...................................................... 12
STOCKING.............................................................................................................. 12
CASE CLEANING.................................................................................................... 12
NON-GLARE GLASS ............................................................................................... 13
PLEXIGLASS & ACRYLIC CARE .............................................................................. 13
Maintenance .............................................................. 14
ELECTRICAL PRECAUTIONS ................................................................................... 14
14
REPLACING FLUORESCENT LAMPS ....................................................................... 14
Electrical and Refrigeration Specifications ............ 14
TIPS & TROUBLESHOOTING ................................................................................. 14
Electrical Schematics ............................................... 15
Appendices ................................................................ 19
APPENDIX A. – Temperature Guidelines ............................................................ 19
APPENDIX B. – Application Recommendations.................................................. 19
APPENDIX C. – Field Recommendations -......................................................... 19
APPENDIX D. – Recommendations to user - .................................................... 20
MODEL DESCRIPTIONS
All models are available in either 48”, 60” lengths.
SCSSSL - Non-refrigerated Summit Cake Self-Service
Bakery Case with 1, or 2 tier merchandising, and rear
signage.
SCSSSL - Refrigerated Summit Cake Self-Service Bakery
Case with 1,or 2 tier merchandising, and rear signage.
Remote unit requires separate condenser unit connection.
Low Temperature Model (SCSSSL-RLL).
SCSSSL -Self-contained refrigerated Summit Cake SelfService Bakery Case with 1, or 2 tier merchandising, and
rear signage. Low Temperature Model (SCSSSL-S/CHL).
APPLICATION
These service-type merchandisers have been specifically
designed for bakery departments. The front glass provides
complete product visibility.
The SCSSSL- non-refrigerated model, is designed to
display fresh bakery products that have fast turnover and
require no refrigeration. The SCSSSL- remote, and
SCSSSL- 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
Keep this booklet with the case at all times for future reference.
/Chino
A publication of
Hussmann® Chino
13770 Ramona Avenue • Chino, California 91710
(909) 628-8942 FAX
(909) 590-4910
(800) 395-9229
2
Rev. 0108
report and required claim forms.
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 imme-
diately, 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.
The Hussmann warranty is printed on the back
of this guide.
3
"
4
/
3
emp Ht)
14
(Low T
"
4
/
3
(S/C Height)
15
"
4
/
1
21
emp. Height)
(Med. T
"
2
/
1
5
(Remote Height)
7
"
12
1
11
/
4
1
12
/
4
"
3
/
4
"
"
3
2
/
4
"
1
44
/
2
"
SCSS
Summit Cake Service Bakery Case
(Remote & Self Contained)
Scale = 1/2"
11
IGSSB-SCSS / SCSS-SL-0108
Cut & Plan Views
"
4
/
3
11
1
35
/2"
1
"
10
"
2
/
30
Refrig.
Stub Up
1
24
/2"
1
31
"
9
/2"
Front Of Case
Drain
Location
"
2
/
1
12
1
/
4
"
3
2
/
4
"
"
2
/
1
25
"
"
4
4
/
/
1
3
9
15
(S/C Height)
(Remote Height)
"
"
4
4
/
/
3
1
40
35
48" (Variable)
SCSS
Plan view
Scale = 1/2"
1
6
/2"
"
2
Elec. Stub Up
/
1
17
1
"
2
/
44
"
4
/
3
11
emp. Height)
"
4
/
3
emp Ht)
14
(Low T
3
(S/C Height)
"
4
/
1
(Med. T
"
2
/
1
5
"
4
/
15
(Remote Height)
14
"
14"
12
1
/
4
"
3
4
/
4
"
"
2
/
1
25
"
"
4
4
/
/
1
3
9
15
21
3
7
/
4
"
38"
SCSS-SL
Summit Cake Self-Service Bakery Case – Slim Line
(Remote & Self Contained)
Scale = 1/2"
(S/C Height)
(Remote Height)
"
"
4
4
/
/
3
1
40
35
4
1
"
2
/
30
1
35
24
31
/2"
1
/2"
1
/2"
Front Of Case
Drain
Location
"
2
/
1
12
"
2
/
1
3
Refrig.
Stub Up
"
9
1
6
/2"
"
2
Elec. Stub Up
/
1
17
"
38
48" (Variable)
SCSS-SL
Plan view
Scale = 1/2"
Rev. 0108
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.
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!
EXTERIOR LOADING
These models have not been structurally designed to sup-
port excessive external loading. Do not walk on their
tops; This could cause serious personal injury and damage to the fixture.
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: 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 carpenters level and shim legs
accordingly. Case must be raised correctly, under legs
where support is best, to prevent damage to case.
1. Check level of floor where cases are to be set.
Determine the highest point of the floor; cases will
be set off this point.
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 (Fig.2, #1) of first case. Apply
heavy amount to cover entire shaded area.
DO NOT USE PERMAGUM!
It is the contractor’s responsibility to install
case(s) according to local construction and
health codes.
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.
Do not use cam locks to pull cases together.
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.
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 overtighten! Join the top by using a joint bracket (included in
joint kit) with 3/8" bolts.
Plumbing
IGSSB-SCSS / SCSS-SL-0108
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 T RIM T O FLOOR!
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 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.
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
Coupling
90°
Inside Case
(All Models)
Air Gap
Remote
Refrigeration
Only!
Nipple
6
Rev. 0108
Refrigeration
REFRIGERANT TYPE
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
LIQUID SUCTION
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
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.
P-traps (oil traps) at the base of all suction line ver-
Install
tical 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.
CONTROL SETTINGS
See the “Case Specs” section of this guidebook 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 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.
0°F / -18°C or less air temperature. Adequate performance
is assured by the desired condition of the product in case.
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 manufacturers 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
THERMOSTATIC EXPANSION VALVE LOCATION
This device is located on the same side as the refrigeration stub. A 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.
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.
3. The difference is superheat.
5. 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.
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.
7
IGSSB-SCSS / SCSS-SL-0108
T-STAT LOCATION
T-Stats are located within the electrical raceway.
Condensing Unit Installation Requirements
For proper operation of the Condensing Unit provide an
opening with adequate exhause and intake as follows:
Up to 1 1/2 hp: minimum of 2 vents totalling 150 sq. in.
Over 1/2 hp: minimum of 2 vents totalling 150 sq. in.
Self-Contained Model Installation - Low temperature
merchandisers need to be connected to both a 120V / 60
Hz and 230V / 60 Hz electrical supply.
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.
8
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