Structural Concepts GHSS1252RLB.6796F User manual

REV AA DATE: 07/10/2023
USER MANUALS\20-01693_FUSION_USER MANUAL_GHSS(L)(H)RLB_GHSSAC_GHSSEH_REF_SELF-SVC_CASE
FUSION HIGH-VOLUME SELF-SERVICE REFRIGERATED DISPLAY CASES ||| NOTE: CASES SHOWN WITH FULL &
OPEN END PANELS AS WELL AS WITH STRAIGHT OR ANGLED BASES. YOURS MAY DIFFER.
GHDSS850R
GHSS652RLB Without
Right End Panel
GHSS660R w/Optional Perforated
Plexiglas® Sliding Doors
GHSS1075RLB.5422
GHSSAC652R GHSSACS857R
Includes Scale Stand
GHSS656R / Optional Night
Air Curtain / Locking Security
Cover / Rear Sliding Doors
GHSS456R
Optional Night Air Curtain
& Locking Security Cover
GHBSS5R.4986A
(Remote)
GHSSEH656RLB (Remote)
GHSSFHX945RLB.6100E / 90°
Outside Wedge & Full Length Header
GHSS1252RLB.6796F
(With Rear Swinging Doors)
GHSSACS645RLB.6527
SCC P/N
20-01693
USER
MANUAL
FUSION
CAREFULLY FOLLOW THESE INSTRUCTIONS
Structural Concepts Corp. ∙ 888 E. Porter Rd ∙ Muskegon, MI 49441 Phone: [phone] Fax: [phone] ∙ www.structuralconcepts.com
GHSSVX452RLB
45° Outside Wedge

2
TABLE OF CONTENTS
TABLE OF CONTENTS ………………………………………………………………………………………...
OVERVIEW / TYPE 1 vs. 2 / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING / PLUGS …...
INSTALLATION: REMOVAL FROM SKID, REMOVING LOWER FRONT PANELS ..……...…….……..
INSTALLATION: ADJUSTING FRONT PANELS / ADJOINING UNITS / GLASS SHELVING ………….
INSTALLATION: ELECTRICAL CONNECTIONS / BALLAST BOX / LED DRIVER (REMOTE UNITS).
INSTALLATION: ELECTRICAL CONNECTIONS / BALLAST BOX / LED DRIVER
(SELF-CONTAINED UNITS) …….…………………………………………………………………....
INSTALLATION: UNDERSIDE FIELD ACCESS COMPONENTS (REMOTE MODEL
GHSSEH456RLB DISPLAYED) ……………………………………………………………………….
INSTALLATION: TOPSIDE FIELD ACCESS COMPONENTS AND TOPSIDE REFRIGERATION
LINE ROUTE (REMOTE MODEL GHSS675RLB.5422A DISPLAYED) ………………………….
INSTALLATION: ELECTRICAL CONNECTIONS / OPTIONAL SCALE STAND ………………………..
INSTALLATION, CONT’D: BASE FRAMES / SEALING TO FLOOR …………………………..………....
INSTALLATION, CONT’D: ADJUSTING LEVELERS ……………………………………………………….
INSTALLATION, CONT’D: CASTER STYLES / LOCKING & UNLOCKING / RAISING & LOWERING.
INSTALLATION: REFRIG. LINES / STUB-UPS / DRAINS / WIRING DIAGRAMS / VENTILATION …..
INSTALLATION: DISPLAY CASE START-UP (CASE / LIGHTS / TEMPERATURE CONTROLLER /
SATURATED SUCTION TEMPERATURE) ..………………………………………………………..
MAINTENANCE: STANDARD LIGHT FIXTURES / REMOVAL & REPLACEMENT …..………………..
MAINTENANCE, CONT’D: LED STYLE LIGHT FIXTURES / LED CLIPS / CONNECTIONS /
THERMOMETERS ………………………………………………...………………………………....…
MAINTENANCE: BRACKET RETAINER REMOVAL / SHELF ASSEMBLY REMOVAL / DRAIN / TXV
ACCESS ……………………………………………………………………………………………..…..
MAINTENANCE: REFRIGERATION PACKAGE ILLUSTRATION (FROM SELF-CONTAINED
MODEL GHDSS850R) ………………………………………………………………………………….
MAINTENANCE: REFRIGERATION PACKAGE ILLUSTRATION (FROM SELF-CONTAINED
MODEL GHSS660R) …………………………………………………………………………………...
MAINTENANCE: OPTIONAL SLIDING REAR DOORS / PERFORATED ACRYLIC PLENUM /
CONDENSER COIL FILTER ...……………………………………………………………….………..
MAINTENANCE: OPTIONAL NIGHT AIR CURTAIN ATTACHMENT & OPERATING INSTRUCTIONS .
MAINTENANCE: REAR SWINGING/HINGED DOORS (MODEL GHSS1252RLB.6796 ONLY) ……...
GENERAL CLEANING (TO BE PERFORMED BY STORE PERSONNEL) ………………..……...……..
TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL) ..………..…….……….…….
GENERAL CLEANING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) …...…...
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) ………...
TROUBLESHOOTING - CONDENSING SYSTEM (TO BE PERFORMED BY TRAINED SERVICE
PROVIDERS ONLY) ...................................................................................................................
TROUBLESHOOTING - EVAPORATOR SYSTEM (TO BE PERFORMED BY TRAINED SERVICE
PROVIDERS ONLY) ...................................................................................................................
PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDER ONLY)...
HONEYCOMB AIR DIFFUSER REMOVAL/INSTALLATION (TO BE PERFORMED BY TRAINED
SERVICE PROVIDER ONLY) …..……………………………………………………………………..
SERIAL LABEL INFORMATION & LOCATION ..……………………………………...…....…………..…...
PROGRAMMABLE CONTROLLER INFORMATION ……..….………………………….………….……....
TECHNICAL SERVICE CONTACT INFORMATION / WARRANTY INFORMATION ….……….….........
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11
12
13
14
15
16
17
18
19
20
21
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23
24
25
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27
28-30
31
32
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34
35
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37

3
OVERVIEW
• These Structural Concepts cases are designed to
merchandise packaged products at 41 °F (5 °C) or less
product temperatures (unless custom cases with wire
rack shelving).
• Product must be pre-chilled to 41 °F (5 °C) or less before
being placed in merchandiser.
• Cases should be installed and operated according to this
operating manual’s instructions to ensure proper
performance. Improper use will void warranty.
TYPE 1 vs. TYPE 2 CONDITIONS
This unit is designed for the display of products in ambient
store conditions where temperatures and humidity are
maintained within a specific range.
• Type 1 conditions: ambient conditions are to be 55%
max. humidity and 75 °F (24 °C) max. temperature.
• Type 2 conditions: ambient conditions are to be 55%
max. humidity and 80 °F (27 °C) max. temperature.
• If unsure if unit is Type 1 or 2, see tag next to serial label.
See SERIAL LABEL LOCATION & INFORMATION
LISTED / TECH INFO & SERVICE section in this manual
for sample serial labels).
COMPLIANCE
• Performance issues when in violation of applicable
NEC, federal, state and local electrical and plumbing
codes are not covered by warranty.
• See below compliance guideline.
WARNINGS
• This page contains important warnings to prevent injury or
death. Please read carefully!
PRECAUTIONS and WIRING DIAGRAMS
• See next page for PRECAUTIONS and WIRING
DIAGRAM information.
WARNING
Hazardous moving parts. Do not operate unit with covers removed.
Fan blades may be exposed when deck panel is removed.
Disconnect power before removing deck panel.
WARNING
Risk of electric shock. Disconnect power before servicing unit.
CAUTION! More than one source of electrical supply is
employed with units that have separate circuits.
Disconnect ALL ELECTRICAL SOURCES before servicing.
WARNING
ELECTRICAL
HAZARD
WARNING
KEEP
HANDS
CLEAR
COMPLIANCE
This equipment MUST be installed in compliance with
all applicable NEC, federal, state and local
electrical and plumbing codes.
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / CORDS / WIRING - PAGE 1 of 2
WARNING
This product can expose you to chemicals, including
Urethane (Ethyl Carbamate), which are known to the state of
California to cause cancer and birth defects or other reproductive
harm. For more information go to P65Warnings.ca.gov.
WARNING
Condensate pan and overflow condensate pans are HOT!
Disconnect and allow to cool before cleaning or removing from case.
WARNING
HOT
SURFACE

PRECAUTIONS
• Following are important precautions to prevent damage
to unit or merchandise. Read carefully!
• See previous page for specifics on OVERVIEW,
CONDITION TYPE, COMPLIANCE and WARNINGS.
WIRING DIAGRAM
• Each case has its own wiring diagram folded and in its
own packet. It may be placed near ballast box, field
wiring box, raceway cover, or other related location.
REFRIGERANT DISCLOSURE STATEMENT
• This equipment is prohibited from use in California with
any refrigerants on the “List of Prohibited Substances” for
that specific end-use, in accordance with California Code
of Regulations, title 17, section 95374.
• This disclosure statement has been reviewed and
approved by Structural Concepts and Structural Concepts
attests, under penalty of perjury, that these statements
are true and accurate.
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / CORDS / WIRING - PAGE 2 of 2
4
CAUTION! POWER CORD AND PLUG MAINTENANCE
Risk of electric shock. If cord or plug becomes damaged,
replace only with cord and plug of same type.
CAUTION! GFCI BREAKER REQUIREMENT
If N.E.C. (National Electric Code) or your local code
requires GFCI (Ground Fault Circuit Interrupter) protection,
you MUST use a GFCI breaker in lieu of a GFCI receptacle.
CAUTION! ADVERSE CONDITIONS / SPACING ISSUES
• Performance issues caused by adverse conditions are NOT warranted.
• To prevent damage to end panels due to condensation, apply industrial grade
silicone sealant and tightly join to opposite end panels. When not adjoining
cases, keep end panels at least 6” away from walls/structures. Rear panels
must also be kept at least 6” from walls and structures.
• Case must not be exposed to direct sunlight or any heat source.
• To maintain proper case temperature, keep case at least 15-feet from exterior
doors, overhead HVAC vents or any air curtain disruption.
• Self-contained case clearance: 6” min. air intake / 6” min. air discharge.
CAUTION
CAUTION! DO NOT RELY ON THERMOMETERS OR
THERMOSTATS FOR PRODUCT (FOOD) TEMPERATURES.
• Thermometers & thermostats reflect air temperatures ONLY.
• For ACTUAL product (food) temperatures, use a calibrated food
probe thermometers ONLY.
• For accurate readings, DO NOT use infrared food thermometers.
CAUTION! CHECK CONDENSATE PAN, ITS POSITION & PLUG!
Water on flooring can cause extensive damage!
• Before powering up case, check that condensate pan is positioned
directly under case’s condensate drain.
• Before powering up case, check that condensate pan’s electrical plug is
SECURELY connected to condensate system’s receptacle.
• If wicking material is used in condensate pan, check that it is secure.

5
INSTALLATION: REMOVAL FROM SKID, REMOVING VERTICAL LOWER FRONT PANELS
1. Remove From Skid (Rails or Levelers)
• Remove shipping brace that may be securing
case to skid.
• Support case to prevent tipping.
• Caution! Frame Support Rails (or levelers) can
be damaged if case hits floor with heavy force!
Note: Case can be repositioned with pallet truck
when front lower panel is removed. Blocking
may be necessary to obtain adequate height.
Slide Skid Out
• Carefully slide unit to
rear of skid and tip
backward off skid.
• Illustration may not
reflect every feature
or option of your
particular case.
2. Remove Case From Skid (Casters)
Remove shipping brackets that may be securing
casters to skid
• Place ramp up against skid (to allow case to
smoothly slide off from skid).
• Maintain support of case at all times or center
of gravity may cause case to fall.
• Unlock Casters. Roll unit to rear of skid. Roll
down ramp and off from skid.
Ramp
Support
while
rolling
case
down
ramp.
Note: Illustrations
shown reflect a general
outline of sample
cases and do not reflect
features or options of
your particular model.
3. Removing Vertical Lower Front Panels
Note: No screw removal required: Simply lift lower front panel up (off hooks) and out (away from case).
View of Front Panel
(Removed & Reversed)
Hooks For Lower
Front Panel
Slots For Lower
Front Panel
Note
Lower Front Panel
Removed & Reversed
For Illustrative
Purposes Only
Note: Illustration below reflects case unit with front flat
glass. Your case may not reflect every
feature or option of this particular case.
However lower front panel removal illustration will apply.

6
INSTALLATION, CONT’D: ADJUSTING FRONT PANELS / ADJOINING UNITS / GLASS SHELVING
4. Bolting and Caulking Units Together
Follow these steps to assure a secure, level lineup.
A. Begin all lineups leveling from highest point of
floor.
B. After the ’first’ case is level, apply industrial grade
butyl caulk on non-visible areas (at case end).
Use industrial grade silicone sealant on visible
areas (at case end).
C. Form Two (2) Caulk/Sealant Lines: (Sanitation
and Refrigeration). See illustration at mid-right for
outline of caulk/sealant lines.
D. Line up ‘second’ case bolt-hole to bolt-hole to
‘first’ case.
E. Using SCC-supplied bolts (found in hole locations
OR in installation packet), insert bolts in bolt hole
locations (shown at top-right). You may need to
remove decking to access lower bolt holes.
F. Caution! Front of cases MUST be flush with each
other! After leveling, all cases to be same height.
G. Using SCC-supplied nuts & bolts, lightly tighten
each of the 5 to 8 bolts in a cross-wise pattern.
Work your way around the pattern, tightening
more firmly at each pass. Do not firmly tighten
one bolt and then start on the next!
H. After the cases are bolted together, level the
‘second’ case. Repeat this process for each case
to be adjoined.
I. After all lined-up cases are level, seal all seams
with industrial grade silicone sealant.
• See illustration at top-right.
5. Glass Shelving
If your unit has glass shelving, it will be packed
separately.
Caution! Carefully remove from packaging.
• Grasp firmly and carefully install.
• Caution! Check that plastic edging is intact
before placing glass shelving onto brackets!
• Plastic edging must NOT be removed from glass
shelves. Contact Structural Concepts for
replacement edging (see TECHNICAL
SERVICE CONTACT INFORMATION section).
• Check that glass shelving is in proper position
before placing product in case.
• See illustrations at mid and lower-right showing
both curved and flat front glass (optional).
Deck
Approximate hole
locations pointed
at with arrows
( ) for bolting
units together.
Sanitation Bead Refrigeration Bead
Sanitation
Bead
Refrigeration
Bead
Glass
Shelves
Glass
Shelves
Note: Illustration above reflects dual case unit with
glass in end panels. Your case may not reflect
every feature or option of this particular case.

7
INSTALLATION, CONT’D: ELEC. CONNECTIONS / BALLAST BOX / LED DRIVER (REMOTE UNITS)
• Knockouts are on the underside of ballast box /
LED driver box making electrical connections.
• Voltage rating is on serial label at case rear.
• Remote case Illustration shown below reflects flat
front glass. Your case may differ (but electrical
layout will be accurate).
• Note: Wiring process must be performed by
certified electrician only.
6. Electrical Connections (Remote Units)
Ballast / LED Driver
Remove front panel. See INSTALLATION:
REMOVAL FROM SKID, REMOVING VERTICAL
LOWER FRONT PANELS section in this manual for
instructions.
• Stub-up connections are in ballast box.
• Remove ballast box / LED driver box cover.
Terminal
Strip
Ballast / LED
Driver
Wire
Route
PBV
Ballast Box /
LED Driver Box
Note: Illustration reflects remote Model GHBSS5R.4986A
with front panel removed for illustrative purposes only.
See next page for self-contained model GHDSS850R.

8
INSTALLATION, CONT’D: ELEC. CONNECTIONS / BALLAST BOX / LED DRIVER (SELF-CONTAINED)
• Remove electrical raceway cover.
• Knockouts are on the underside of electrical race
way for making electrical connections.
• Voltage rating is on serial label at case rear.
• Self-contained case Illustration shown below
reflects curved front glass. Your case may slightly
differ (but electrical layout is accurately portrayed).
• Wiring process must be performed by certified
electrician only.
Ballast / LED
Driver
Wire Route
PBV
7. Electrical Connections (Self-Contained Units)
Front Ballast / LED Drivers:
• Remove front panel.
• See INSTALLATION: REMOVAL FROM SKID,
REMOVING VERTICAL LOWER FRONT
PANELS section in manual for instructions.
• Stub-up connections are in ballast box.
Ballast / LED
Driver
(Optional)
Note: Illustration reflects self-contained Model
GHBSS5R.4986A with lower-front panel and electrical
raceway cover removed for illustrative purposes only.
See previous page for remote model GHDSS850R.
Main Power
Switch
Temperature
Controller
Terminal
Strip
Contactor

9
INSTALLATION, CONT’D: UNDERSIDE FIELD ACCESS COMPONENTS (MODEL GHSSEH456RLB)
8. Underside Field Access Box Components and
Underside Refrigeration Line Route
• On certain models, field access components (a
variety of which is shown below) are at underside.
• Model GHSSEH456RLB is illustrated below; your
underside component layout may vary.
• Caution! Only certified electricians are to perform
electrical connectivity duties.
• To access large field access box, two screws (at
case front) must be removed and box slid out.
Note: Illustration Reflects Remote
Model GHSSEH456RLB With
Underside Electrical Components.
Your Case May Vary.
4” x 4” Field
Access Box
Dixell®
Display
LED
Drivers
Temperature
Controller
Transformer
Refrig.
Lines
LED
Drivers
Terminal Blocks Fuse Block
Remove Screws (Typ.)
to Slide Out Large Field
Access Box From
Underside Of Case

10
INSTALLATION, CONT’D: TOPSIDE FIELD ACCESS COMPONENTS (MODEL GHSS675RLB.5422A)
9. Topside Field Access Box Components and
Topside Refrigeration Line Route
• On certain models, field access components
(a variety of which is shown below) are topside.
• Model GHSS675RLB.5422A is illustrated below;
your topside component layout may vary.
• Caution! Only certified electricians are to
perform electrical connectivity duties.
Model GHSS675RLB.5422A
Shown Above
• To access large field access box, two screws
(at case rear) must be removed and cover lifted
up and off.
• *Note: See MAINTENANCE: OPTIONAL NIGHT
AIR CURTAIN ATTACHMENT... section in this
manual for night curtain operating instructions.
Dixell®
Display
4” x 4”
Field Access Box
Large Field
Access Box
LED Drivers
Temperature
Controller
Terminal Blocks
Fuse Block
Transformer
Screw (Typ.)
Note: Illustration Reflects Remote
Model GHSS675RLB.5422A With
Topside Electrical Components.
Your Case May Vary.
*Optional Night
Air Curtain
Refrigeration
Lines
(Top Exit)

11
INSTALLATION, CONT’D: ELECTRICAL CONNECTIONS / OPTIONAL SCALE STAND
Scale
Stand
Scale Stand
Receptacle
Model GHSSACS857R Shown Below
With Scale Stand and Receptacle.
Your Model May Vary.
View of Typical Case With
Scale Stand and Receptacle
10. Optional Scale Stand
• Scale stand is on model GHSSACS857R
(and may be on additional models).
• Scale stand is provided with isolated
ground receptacle.
• Depending upon options chosen, scale
stand may be at either left or right of
case.

12
INSTALLATION, CONT’D: BASE FRAMES / SEALING TO FLOOR
11. Cases With Base Rails: Shim
• Illustration below shows case with frame support rails. End panel has been removed for illustrative
purposes only.
• Shims will be provided with all cases that have frame support rails.
• Use shims to level case.
• See illustration below.
• Note: After case is in position, it must be sealed to floor to prevent entry or leakage of liquid or
moisture.
Base Frames

13
INSTALLATION, CONT’D: ADJUSTING LEVELERS
Adjustable
Wrench
Leveler
Leveler Style B
Random
Levels
Base
Frame
--- Leveler Style C ---
Toe-Kick
• Structural Concepts’ three (3) main leveler styles
(A, B and C) are shown below.
• Note: After case is level and plumb, use
silicone sealant to seal rear splash guard to
floor to prevent entry (or leakage) of liquid or
moisture. If there is no rear splash guard,
check with store manager as to whether rear
toe-kick should be sealed to floor.
Front Toe-Kicks
Indexing
Flat Pry Bar
Leveler
Adjustable
Channel Lock Pliers
Indexing
Flat Pry Bar
12. Adjusting Levelers
>> Structural Concepts utilizes three (3) different
leveler styles; they are illustrated on this page.
• After case is in position, you must adjust case so
it is level and plumb. See illustrations of random
levels on sample cases at top-right of page.
• You must remove front and/or rear toe-kicks to
access levelers. See illustrations at top-right.
• Leveler Style “A” and “B” may require the use of
an adjustable wrench and an indexing flat pry bar
(or similar pry bar) to adjust levelers.
• Leveler Style “C” may NOT have accessible base
frames to use a pry bar; if so, use adjustable
channel lock pliers to adjust levelers.
• If base frame is accessible, use indexing flat pry
bar to raise case (and adjust levelers as needed).
• DO NOT use indexing flat pry bar on toe-kicks
as they may buckle.
• DO NOT use indexing flat pry bar on end
panels as surfaces may chip or mar.
• Use indexing flat pry bar ONLY on base
frames to avoid damaging case!
Leveler Style A
Adjustable Wrench
Sample Cases With Random Levels

14
INSTALLATION, CONT’D: CASTER STYLES / LOCKING & UNLOCKING / RAISING & LOWERING
Caster Styles - Overview
>> Structural Concepts utilizes two (2) different caster
styles on its merchandisers.
>> Both caster styles are illustrated on this page.
13. Caster Style “A” - Locking/Unlocking Only
• Caster Style “A” is shown at top right on this page.
• Case must be level and plumb before locking;
levelers are usually adjusted to do so; see previous
page for leveler adjustment instructions..
• Caster assembly Style “A” is identified as having a
“front” and “rear” for these instructions.
• To lock caster, press down caster lever at “rear.”
• To unlock caster, press down caster lever at “front.”
• This style of caster cannot be raised or lowered.
14A. Caster Style “B” - Locking/Unlocking
• Style “B” casters are unlocked at shipment
(as casters are held in place by wooden
blocks and metal brackets).
• Style “B” casters are in unlocked position;
caster levers will be parallel to floor.
• After case has been moved into position,
casters may be locked. To do so, press
downward against the “ON” marking on the
caster lever.
• To unlock casters (and move case to a
different location), press downward against
the “OFF” marking on the caster lever.
Casters will now be unlocked, allowing the
case to be moved.
• See caster/lever illustrations at lower right for
specifics.
14B. Caster Style “B” - Raising/Lowering
• Style “B” vertical height adjustment ring
illustrations are shown at mid and lower right on
this page.
• Style “B” caster are utilized in lieu of levelers.
• Cases are shipped from factory with Style “B”
casters RAISED to maximum height; this position
aids in skid removal.
• After case has been moved into position, Caster
Style “B” allows vertical adjustment of case so it
may be adjusted until case is level and plumb.
• Slotted head screws MAY be tightened/loosened to
lock vertical height adjustment ring; usually, these
Slotted head screws are NOT tightened at factory.
• After case is level and plumb (as described on
previous page), must may be locked.
Caster
Vertical Height
Adjustment Ring
Caster Style B - Raising/Lowering
Locked
Caster Style A - Locking/Unlocking
Front of Caster
Assembly Unlocked
Rear of Caster
Assembly
Caster Lever
Caster May Be Locked By
Pressing Downward
Against The ON Lever).
Caster Style B - Locking/Unlocking
Caster Lever Is Shown
In Unlocked Position.
Slotted Head Set
Screws May Be
Tightened When
Desired Vertical
Height Is Achieved)

15
INSTALLATION, CONT’D: REFRIG. LINES / STUB-UPS / DRAINS / WIRING DIAGRAMS / VENTILATION
15. Refrigeration Line Stub-Up Connections
(Remote Units)
• Remove front panel.
• Refrigerant stub-up access opening is at the
front on the left hand side of the base (see
illustration at top-right).
• Stub-up connections are accessed from inside
the case.
• Remove interior decks.
• Remove fan shroud assembly.
• Line connections are in the tub front, on the left
hand side
• Remove foam material from the entry hole
provided in the tub drain trough.
• Route refrigerant lines through access hole.
• Run case-to-case connections through
cutouts in base.
• Sweat the high and low pressure
connections.
• Fill access hole with suitable filler to insure
watertight integrity of tub.
• Illustration at top-right may not reflect every
feature or option of your particular case.
16. Refrigeration Drain Connection (Remote
Units)
• Depending upon drain access needs, either front
or rear panel may be removed to gain access to
drain stub-up.
• 1.5” male PVC stub-up connection is under the
case on the right hand side.
• Drain stub-up may be at case center in extended
length cases.
• Connect tub drain to floor drain. Maintain
1/4”-fall per foot to provide proper drainage.
• Illustration at top-right may not reflect every
feature or option of your particular case.
17. Condensate Pan / Drain Position
(Self-Contained Units)
• Remove the front panel by lifting up & out.
• Slide the condenser unit out from case.
• Condenser unit access is now available.
• Insure that the condensate pan is installed under
the PVC condensate drain trap.
• Insure that the condensate pan is plugged into
the receptacle inside base.
• Lower rear panel back into place.
• See Drain, Hose and Bracket Placement
section in Operating Manual for details.
19. Ventilation and Clearance
• Self-Contained refrigerated cases must
maintain airflow clearance of 6” (minimum) to
12” (recommended) at front and rear.
• Restriction of air can void warranty.
• Illustration below may not reflect every feature
or option of your particular case.
Check air grilles for obstructions.
Maintain airflow clearance of 6” (min.)
to 12” (recommended) at front & rear.
18. Electrical Wiring Diagram
• Each case has its own wiring diagram
folded and in its own packet.
• Wiring diagram placement may vary; it may
be placed near condenser fan cover,
ballast box, raceway cover, or other related
location.
Refrigeration
Line Stub-Ups
Access
Cutout
Drain Stub-Up (may be
at case center in
extended length cases)
Note: Illustration Below May Not Reflect Every
Feature or Option of Your Particular Case

16
INSTALLATION, CONT’D: DISPLAY CASE START-UP (CASE / LIGHTS / TEMP. CONTROLLER / SST)
Cap
Plug
Receptacle
Raceway Receptacle, Plug and Cap
Raceway
20. Display Case Start-Up
A. Case
• Remote: Case will power-up when properly field
wired (or plugged in).
• Self-contained: Turn main power on.
• After case is powered up, lift curved or flat front
glass by grasping lift handle and raising (see
illustration at right).
• Note: Illustration at right reflects flat front glass.
Yours may have curved front glass.
• Lift deck to check that coil fans are running.
• Coil fans (and in self-contained units, compressor
motor) should turn on.
B. Lights
• Turn lights on.
> Switch is either at case front, attached to rear
plenum, above top shelf (as shown at right) or at case
rear (as shown at top-right).
> In cases with NO SWITCH, lights will come on
when case powers up.
• All lights should come on at the same time. If
bulbs are fluorescent, first time lighting may
require a short warm-up period. LEDs have no
warm-up period.
• Slightly dim / flickering of new bulbs is normal.
If lights do not turn on, check raceway plugs.
• Lighting is wired in series so all lights must be
plugged in or receptacles capped for case
lights to be on. See illustration at right.
• LED Lights: If lights do not come on, check that
plug is properly inserted into socket.
C. Temperature Controller (All Self-Contained
Units and some Remote Units)
• Check that compressor symbol light is on.
• After case has run for a few minutes, check that
temperature starts to drop.
• If temperature controller does not begin cooling
(in a few minutes) see temperature controller
section in this operating manual for instructions.
• Remote units (without temperature controller on
case): Verify that refrigeration requirements listed
on serial label (found on the case) are being met.
D. Saturated Suction Temperature (Remote)
• See serial label on case for suction temperature
requirements and BTU requirements.
• See serial label on case for defrost schedule and
temperature termination parameters.
Main Power
Switch
Light Switch (On
Certain Self-
Contained Units)
Temperature
Controller
Coil Fans
Raceway
Plugs (See
Illustration
Below)
Light Switch at Rear
Plenum Above Top Shelf
(On Remote Units and
Various Self-Contained
Units)
Self-Contained Unit Control Panel
(With Temperature Controller)

17
Note: See INSTALLATION section in manual for:
• Front Panel adjustment and removal
• Angled Base adjustment and removal
• Vertical Base adjustment and removal
1. Fluorescent Light Fixtures
Warning! Disconnect power before providing
maintenance and service to unit.
Caution: Lamps have been treated to resist
breakage and must be replaced with similarly
treated lamps.
Note: Warranty will be void if claims arise from
negligence, misuse of goods, extreme
environmental conditions or improper
maintenance. See Overview And Warnings
section in this operating manual.
• Light fixtures are located on underside of shelf
assemblies and at the top inside of case.
• See illustration at top-right for locations.
Removal of lamp:
• Rotate lamp (1/4-turn) either direction to disengage
(upper or lower) pins/contacts from lamp-mounting
sockets.
• Remove bulb by applying even pressure from back
side at the bulb ends and pulling the remaining
contact from sockets.
• See illustrations at mid and lower-right.
Installation of lamp:
• Align pins with slot.
• Insert pins into socket by rotating the bulb 1/4-turn
to secure either the (upper or lower) pin contacts
into the sockets.
• Rotate remaining bulb contacts (1/4-turn) into
remaining lamp mounting socket contacts.
• See illustrations at right.
See next page for LED Light Fixture information
MAINTENANCE: FLUORESCENT LIGHT FIXTURES / REMOVAL & REPLACEMENT
Lamp Pins
Light Socket Light Fixture
Fluorescent
Light
Fixtures
Above illustration has end panel removed
for illustrative purposes only.

18
MAINTENANCE, CONT’D: LED STYLE LIGHT FIXTURES / LED CLIPS / CONNECTIONS / THERMOMETERS
2. LED Style Light Fixtures
Removal of Faulty LED Lights:
• Contact Structural Concepts’ Technical Service
Department for replacement LED lights.
• Turn off LED light switch.
• To remove faulty LED light, follow these steps:
A. Disconnect plug from LED light.
B. Using both hands, grasp LED light assembly (with its
magnetic mounting clips). Pull downward and off its
shelf (or header).
C. Remove magnetic mounting clips from LED light by
pressing against flange part of clip with thumb.
>> Note: Mounting clips MAY be riveted to shelf or header.
In such instances, simply remove LED light from mounting
clips by pressing against flange part of clips with thumb.
Replacement of LED lights:
• Attach magnetic mounting clips onto LED light.
• Adjust magnetic mounting clips so they are equally
spaced on LED light.
• Reattach LED light assembly to its shelf/header.
• Position properly in shelf/header.
>> Note: If mounting clips are riveted to shelf (or header),
attach by placing LED in base of clip and then snapping into
clip at FLANGE SIDE.
• Press plug’s barrel-shaped insert deep into LED light.
• Important: If plug is not inserted ALL THE WAY IN the
LED light’s orifice, the light may not energize. See “BAD”
vs. “GOOD” insertion illustrations at right.
• Turn LED light switch back on.
3. Thermometers
• Thermometers are is located at rear plenum.
• Thermometers reflect internal air temperature only (not
actual food temperature).
• Use probe thermometers to determine product temp.
• See illustration below for common location of
thermometer (your location may slightly vary).
Honeycomb
LED Light
Magnetic Mounting
Clip View #2
LED
Lights
B
A
Plug
Barrel
Shaped
Insert
LED
Light
C
Magnetic Mounting
Clip View #1
No Gap
Gap
Common Location
of Thermometer
(May Vary From
Case to Case)

19
MAINTENANCE, CONT’D: BRACKET RETAINER REMOVAL / SHELF ASS’Y REMOVAL / DRAIN / TXV
4. Bracket Retainer Removal
• To remove brackets, it may be necessary to
remove the nylon shipping bracket retainers.
• Pliers will be required to accomplish this task.
• See illustration at top-right for location of bracket
retainers.
5. Shelf Assembly Removal
• Remove glass shelves
• For lighted shelving, unplug the light cord.
• Remove rear shelf support.
• Remove shelf light cover from brackets.
• Lift brackets up and out.
6. Drain and Thermostatic Expansion Valve (TXV)
Access
• The drain and thermostatic expansion valve are both
accessible from the front of the case.
• Unplug the fans (one plug per side) and remove the
fastener from the access panel in the front right (or
left) corner of the unit.
• The drain and the thermostatic expansion valve
(TXV) are directly below the access panel.
Fan Plug TXV Panel
Shelf
Bracket
Shelf Light
Cover
Rear Shelf Support
Lamp
Bracket
Bracket
Retainer
Locations
Evaporator
Fan

20
MAINTENANCE, CONT’: REFRIG. PACKAGE ILLUSTRATION (FROM S.C. MODEL GHDSS850R)
7. Refrigeration Package Configuration
• Illustration shown is from self-contained model GHDSS850R.
• Your particular refrigeration package may have a slightly different refrigeration package layout.
Accumulator
Scroll
Compressor
Electrical Box
(Starter Unit &
Relay)
Filter Dryer Sight Glass
Overflow Pan
(For Hot Gas
Condensate Pan)
Condenser Coil
Housing
Condenser Coil
Fans & Housing
Hot Gas
Condensate
Coils and Pan
Overflow Pan
Electrical Box) Receiver
Condenser
Coils
Hot Gas
Condensate
Coil Pan
Condenser Coil
Wicking Material
(Typical)