Structural Concepts K Series Installation instructions

READ AND SAVE THESE INSTRUCTIONS
PN 54382
SELF-SERVICE REFRIGERATED DISPLAY CASES (SELF-CONTAINED & REMOTE)
Rev R Date: 2.27.2015
Oper Manuals\Standard\Self_Service_Refrig_Oper_Manual_54382.pub
HV(L)RSS
Straight Base
Cutaway Ends
HV(L)56RSS
Angled Base - Full Ends HV48RSS.3635A Modified Base
Cutaway Ends
HV(L)39RSS (including Q3713)
Straight Base - Full Ends
HV7439RSS.3713A
Angled Base - Full Ends
HV(L)48RSS
Straight Base
With Full Ends
HV42(L)RSS
Angled Base - Full Ends HV(L)56RSS
Straight Base
Full Ends
HV(L)RSSRD
Straight Base - Full Ends
Rear Sliding Doors - Plexi Plenum
HVK(L)RSS
“K” Series
Straight Base - Full Ends
PLEASE NOTE THE FOLLOWING:
1. YOUR SPECIFIC MODEL NUMBER IS ON THE SERIAL LABEL ON CASE REAR (NEAR MAIN POWER SWITCH).
2. ILLUSTRATIONS SHOWN BELOW LIST “(L)” TO REFLECT VARYING CASE LENGTH DIMENSIONS.
3. CASES SHOWN REFLECT FULL & OPEN END PANELS / STRAIGHT OR ANGLED BASES. YOURS MAY DIFFER.
4. SEE “MODELS (AND THEIR RESPECTIVE CASE DIMENSIONS) LISTED IN THIS MANUAL” SECTION FOR
ADDITIONAL INFORMATION REGARDING SPECIFIC CASE DIMENSIONS OF STANDARD MODELS AND CDRs.
INSTALLATION &
OPERATING MANUAL
RG2Z5080 HV36112RSS.4922B
With Patisserie in Top Section
(See Patisserie Section in Manual)
HV36112RSS.4863A
Metal End Panel With Sink
HV3674RSS.5954 With
White Medex® Storage
Unit At Rear
888 E. Porter Road · Muskegon, MI 49441 Phone: [phone] Fax: [phone] www.structuralconcepts.com

2
TABLE OF CONTENTS
TABLE OF CONTENTS …………………………………………………………………………………..…......
MODELS LISTED IN MANUAL (AND DETERMINING THEIR RESPECTIVE CASE DIMENSIONS) ….
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING ...……...………….......
INSTALLATION: REMOVAL FROM SKID (LEVELERS AND RAILS vs. CASTERS) …………………....
INSTALLATION: LOWER FRONT PANEL REMOVAL (ANGLED vs. VERTICAL / SCREW vs. SLOT)..
INSTALLATION: ADJUSTING FRONT PANELS / ADJOINING UNITS / GLASS SHELVING ……...…..
INSTALLATION: ELECTRICAL CONNECTIONS / LOCKING CASTERS / ADJUSTING LEVELERS …
INSTALLATION: REFRIGERATION LINES / STUB-OUTS / DRAINS / WIRING DIAGRAMS /
VENTILATION …………………………………………………………………………………………...
INSTALLATION: DISPLAY CASE START-UP (FRONT ACCESS) ………………………………………...
INSTALLATION: DISPLAY CASE START-UP (REAR ACCESS) ……...……………………………....…..
DRAIN, HOSE AND BRACKET PLACEMENT ………………………………..…………..……….……..…..
NIGHT AIR CURTAIN OPERATING INSTRUCTIONS (OPTIONAL) …………..…………...……….....….
SECURITY GRID INFORMATION ……………………………………………………..……..….……....…....
MAINTENANCE FUNDAMENTALS - STANDARD LIGHT FIXTURES ...…………..……..…….…….......
MAINTENANCE FUNDAMENTALS - LED LIGHTS/BRACKETS/SHELVES/DRAIN/TXV VALVE …......
MAINTENANCE FUNDAMENTALS - REFRIGERATION PACKAGE, TEMPERATURE
CONTROLLER, CONDENSATE PAN ………………………………………………………………...
MAINTENANCE FUNDAMENTALS - HOT GAS LOOP CONDENS. UNITS (HV48RSS.5536, Etc.) ….
MAINTENANCE FUNDAMENTALS - HOT GAS LOOP CONDENS. UNITS (HV3674RSS.5954, Etc.) .
MAINTENANCE FUNDAMENTALS - REAR DOORS / REAR PLENUM / MAGNETIC AIR FILTER …..
MAINTENANCE FUNDAMENTALS - MEDEX® STORAGE UNIT/SUPPLY ORGANIZER DRAWERS
(MODEL HV3674RSS.5954 ONLY) …………………………………………………………………...
MAINTENANCE FUNDAMENTALS - PATISSERIE AREA (MODEL HV36112RSS.4922B 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 (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) -
CONDENSING SYSTEM .............................................................................................................
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) -
EVAPORATOR SYSTEM .............................................................................................................
PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDER) …….......
MAINTENANCE FUNDAMENTALS - HONEYCOMB AIR DIFFUSERS (TO BE PERFORMED BY
SERVICE TECHNICIANS ONLY) …………………………………………………………………………..…..
SERIAL LABEL INFORMATION & LOCATION ..……………………………………...…....……………...…
TEMPERATURE CONTROLLER - CAREL® ...…..……………………..……..…………………...…….…..
TEMPERATURE CONTROLLER - DIXELL® XM670K and XM679K ……..……………………………….
TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION ...……….…..........
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3
4-5
6
7
8
9
10
11
12
13
14-15
16-17
18
19
20
21
22
23
24
25-26
27
28
29
30-32
33
34
35
36
37
38-40
41-43
44

MODELS LISTED IN THIS MANUAL (AND DETERMINING THEIR RESPECTIVE CASE DIMENSIONS)
2287 2595 2613 2613A 2613B 2852C 3153 3916 HVK3696RSS.5159A
HVK36144RSS.5159B HVK48RSS HVK56RSS HVK74RSS
HVK74RSS.5142A HVK96RSS HVK96RSS.5142 HVK4296RSS
HV28RSS HV28RSS.3635B HV38RSS HV38RSSRD HV48RSS
HV48RSS.2917 HV48RSS.3620 HV48RSS.3635A HV48RSS.3735A
HV48RSS.5536 HV48RSS.5975 HV56RSS HV56RSS.3928A
HV56RSS.3935A HV56RSS.4203 HV56RSS.5010 HV56RSS.5381
HV74RSS HV74RSS.2846B HV74RSS.2852 HV74RSS.3905B
HV74RSS.3928 HV74RSS.3941 HV74RSS.3941A HV74RSS.4104
HV74RSS.4444 HV74RSS.4447A HV74RSS.5009 HV74RSS.5028
HV74RSS.5287 HV74RSS.5543 HV96RSS HV96RSS.3905
HV96RSS.4070 HV96RSS.4105 HV96RSS.4645 HV96RSS.5161
HV96RSS.5289 HV96RSS.5290 HV96RSS.5975C HV112RSS
HV112RSS.2852D HV114RSS HV144RSS HV34144RSS
HV34144RSS.4993 HV34144RSS.4993A HV3638RSS HV3648RSS
HV3656RSS HV3674RSS HV3674RSS.4922 HV3674RSS.5954
HV3696RSS HV36112RSS HV36112RSS.4922B HV36112RSS.4992B
HV36112RSS.4863A HV4256RSS HV4274RSS HV4296RSS
HV5656RSS HV5656RSS.5382 HV7439RSS HV38RSSRD
HV48RSSRD HV56RSSRD HV74RSSRD HV96RSSRD HV112RSSRD
HVLD48RSS.4125 RG2Z5080 HV74RSS.6527 HV96RSS.6527
HV74RSS.6533 HV96RSS.6533 #80-02791 (DOC OPTION #80-02791)
DETERMINING YOUR MODEL AND ITS CASE DIMENSIONS:
Note 1. Your model number can be found on serial label at rear of case (near main power switch).
Note 2. Dimensions of most models can be found at www.structuralconcepts.com. Simply enter
the case model number into the Product Number Search box. Click the product specification link
for complete dimensions.
Note 3. If your specific model is not found, contact technical service (phone number is listed at
Technical Service section in this manual) for dimensions.
Note 4. CDRs (Customer Design Requests) are listed with a 4-digit number. All CDR dimensions
are very similar (and some identical) to standard model dimensions.
THIS OPERATING MANUAL ENCOMPASSES THE FOLLOWING MODELS (AND/OR THEIR
RESPECTIVE CDRs):
3

4
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING / PLUGS - PAGE 1 of 2
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
Condenser Pan is Hot!
Disconnect and allow to cool
before cleaning or removing from case.
WARNING
ELECTRICAL
HAZARD
WARNING
KEEP
HANDS
CLEAR
WARNING
HOT
SURFACE
OVERVIEW
 These Structural Concepts self-service cases are
designed to merchandise packaged products at
41 °F (5 °C) or less product temperatures (unless
custom cases with wire rack shelving).
 Cases should be installed and operated according to
this operating manual’s instructions to insure proper
performance. Improper use will void warranty.
TYPE I vs. TYPE II ENVIRONMENTAL CONDITIONS
This unit is designed for the display of products in
ambient store conditions where temperature and
humidity are maintained within a specific range.
 Type I display refrigerators are intended for use in an
area where environmental conditions are controlled
and maintained so that the ambient temperature does
not exceed 75 °F (24 °C) and 55% maximum humidity.
 Type II display refrigerators are intended for use in an
area where environmental conditions are controlled
and maintained so that the ambient temperature does not
exceed 80 °F (27 °C) and 60% maximum humidity.
 If unsure if your unit is Type I or II, 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
 Following are important warnings to prevent injury or
death.
 Please read carefully!
 See next page for PRECAUTIONS.
COMPLIANCE
This equipment MUST be installed in compliance with
all applicable NEC, federal, state and local
electrical and plumbing codes.
ATTENTION
CONTRACTORS

5
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING / PLUGS - PAGE 2 of 2
PRECAUTIONS
 Following are important precautions to prevent
damage to unit or merchandise.
 Please read carefully!
 See previous page for specifics on OVERVIEW, NSF
TYPE, COMPLIANCE and WARNINGS.
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 ballast box, field wiring box, raceway cover, or
other related location.
CAUTION! GFCI BREAKER USE 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! LAMP REPLACEMENT GUIDELINES
LED lamps reflect specific size, shape and overall design.
Any replacements must meet factory specifications.
Fluorescent lamps have been treated to resist breakage and
must be replaced with similarly treated lamps.
CAUTION
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! ADVERSE CONDITIONS / SPACING ISSUES
 Performance issues caused by adverse conditions are NOT warranted.
 End panels must be tightly joined or kept at least 6-inches away from
any structure to prevent condensation.
 Unit must be kept at least 15-feet from exterior doors, overhead HVAC
vents or any air curtain disruption to maintain proper temperatures.
 Unit must not be exposed to direct sunlight or any heat source
(ovens, fryers, etc.).
 Tile floors, low ceilings or small rooms increase noise level. Whisper
Cool compressor blankets or remote units resolve noise level issues.
 Keep at least 8-inch clearance above unit for air discharge
(self-contained units only).
CAUTION
CAUTION! CHECK CONDENSATE PAN POSITION AND PLUG
Water on flooring can cause extensive damage!
Before powering up unit, check the following:
 Condensate pan MUST BE positioned directly under
condensate drain.
 Condensate pan plug MUST BE securely plugged into
receptacle.

6
1. Remove Case From Skid (Levelers and Rails)
 Remove shipping brace that may be securing case to
skid.
 Support case to prevent tipping.
 Caution! 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
Caution!
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.
INSTALLATION: REMOVAL FROM SKID (LEVELERS AND RAILS vs. CASTERS)

3A. Angled Lower Front Panels (Screws)
Upper Panel Support:
>> Remove screws located behind upper front panel. Lower
Panel Support:
>> For most applications, screws secure the lower panel
support (located below front panel) to the unit.
>> See illustration at top-right.
3B. Vertical Lower Front Panels (Screws)
> Front Panel Upper Support (With Screws): Remove caps
& screws holding deck support in place.
> Front Panel Lower Support (With Screws): For most
cases, screws secure the front panel lower support to base.
>> Remove screws holding front panel lower support to
display case base.
>> Vertical lower front panel can now be removed.
>> See illustration at mid-right).
3C. Front Panel Removal / Replacement
>> No screw removal is required for removing front panel.
>> Raise front panel up (lifting slots off hooks) inside front
panel support bracket and pivot outward to free slots from
front panel hooks. Lower front panel downward and out,
away from case.
>> Place panel in secure location while performing cleaning
or service.
>> Return front panel in reverse order it was removed.
3D. Lower Toe-Kick Removal / Replacement
>> No screw removal is required to removed lower toe-kick.
>> Simply lift lower front panel slots up and off case hooks.
>> Place panel in secure location while performing cleaning
or service. Replace in reverse order it was removed.
Remove
screws.
Lift out.
Angled
Lower Front
Panel
Lower Panel
Support
*Apply Upward Pressure
Upper Panel
Support
INSTALLATION: LOWER FRONT PANEL REMOVAL (ANGLED vs. VERTICAL / SCREW vs. SLOT)
Vertical Lower
Front Panel
Front Panel
Upper Support
Front Panel
Lower Support
Deck
Support
Typical
Side
Panel
Display
Case
Base
7
3A
3B
Lower Toe-Kick
Front Panel
Lower Toe-Kick Hooks
Slots (Typ.)
Slots (Typ.)
Front Panel Hooks (Typ.)
Front Panel
Support Bracket
3C
3D

8
4. Adjusting Upper Front Panels
 Remove screw cover and loosen adjustment
screws.
 Adjust alignment and tighten screws.
 See illustration at mid-right.
5. Bolting and Caulking Units Together
Follow these steps to assure a secure, level lineup.
A. Begin lineup 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 installation
packet), insert bolts in bolt hole locations (shown
at 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, cases are 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.
6. Glass Shelving (or Sneeze Guard)
Glass shelving and (on certain cases sneeze guards)
will be packed separately.
 Caution! Two installers may be required to
properly lift and install of large pieces.
 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.
Loosen
Adjustment
Screws
Upper
Front
Panel IN / OUT
IN / OUT
UP
or
DOWN
Remove Screw
Cover Cap
Glass
Shelves
Sneeze
Guard
INSTALLATION: ADJUSTING FRONT PANELS / ADJOINING UNITS / GLASS SHELVING
Deck
Approximate hole
locations pointed
at with arrows
( ) for bolting
units together.
Sanitation Bead
Refrigeration Bead
Sanitation
Bead
Refrigeration
Bead

9
7. Electrical Connections
A. Rear Wire-Ways
 Remove screws from rear wire-way cover to
access electrical leads.
 Wiring runs case to case through base cut-outs.
 Knockout is provided in bottom of wire-way for
stub-out connection.
 See illustration at top-right.
Note:Wiring process must be performed by
certified electricians only.
 Voltage rating is on serial label at case rear.
B. Rear Ballast Box
 Remove 4 screws from ballast box face.
 Remove screws from rear panel (if any).
 Remove 3 screws from inner support.
 Knockouts are located on side and rear of box
for making electrical connections.
Note:Wiring process must be performed by
certified electricians only.
 Serial label (at case rear) lists voltage rating.
C. Front Ballast Box
 Remove front panel.
 Stub-out connections are in ballast box.
 Remove ballast box covers.
 Knockouts are on sides and front of ballast
assembly for making electrical connections.
Note:Wiring process must be performed by
certified electrician only.
 Voltage rating is on serial label at case rear.
8. Cases With Casters: Lock and Unlock
 To lock casters, press down on lever.
 To unlock casters, pull lever up.
 See illustration at right.
9. Cases With Levelers: Adjust Levelers
 After case is in position, adjust case so it is level
and plumb (see illustration at right).
 You may need to remove front and/or rear
Toe-Kick to access levelers.
 Use adjustable wrench (and possibly a pry bar)
to adjust leveler.
 Do not use pry bar on toe-kick (it may buckle).
 Do not use pry bar on end panel (it may chip).
 Use pry bar ONLY on base frame to avoid
damaging case.
 Use a block to reach base frames with pry bar.
 See illustrations at right.
Front Ballast
Box Covers Electrical Leads
Access
Raceway
Cover
Ballast
Wireway
Ballast Box
Inner Support Case
Rear
Case Rear
Side View
INSTALLATION: ELECTRICAL CONNECTIONS / LOCKING CASTERS / ADJUSTING LEVELERS
Pry Bar
Base
Frame
Leveler
Adjustable
Wrench
Toe-Kick
Block
Locked
Unlocked

10
10. Refrigeration Line Stub-out Connections
(Remote Units)
 Remove front panel.
 Refrigerant stub-out access opening is usually at
the front on the left hand side of the base (see
illustration at top-right).
 Stub-out connections are accessed from inside
the case. Remove interior decks and fan shroud
assembly to access.
 Remove foam material (if any) from the entry
hole provided in tub drain trough.
 Fill access hole with suitable filler/foam to insure
watertight integrity of tub.
 Caution! All suction lines must be insulated
at underside of tub.
 Refrigeration line stub-out locations are either at
case rear or side (as shown mid-right).
 Sweat the suction line and liquid line
connections.
11. Refrigeration Drain Connection
(Remote Units)
 Depending upon drain access needs, either front
or rear panel may be removed to gain access to
drain stub-out.
 1.5” male PVC stub-out connection is under the
case on the right hand side.
 Drain stub-out 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.
12. Condensate Pan / Drain Position
(Self-Contained Units)
 Remove the rear panel by lifting up & out.
 Slide the refrigeration package out from case.
 Condensate pan is now accessible.
 Insure that the condensate pan is positioned
under the PVC condensate drain trap.
 Caution! Check that condensate pan is
plugged into receptacle inside base. If not,
water may drain onto floor, causing damage!
 Lower rear panel back into place.
 See Drain, Hose and Bracket Placement
section in this operating manual for details.
Refrigeration Line
Pass-Through at
Case Underside
Cutout
Drain Stub-Out (May Be
At Case Center In
Extended Length Cases)
13. 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.
14. 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.
INSTALLATION: REFRIGERATION LINES / STUB-OUTS / DRAINS / WIRING DIAGRAMS / VENTILATION
Rear Refrigeration
Line Stub-Out
Access
Side
Refrigeration
Line Stub-Out
Access

11
INSTALLATION: DISPLAY CASE START-UP (FRONT ACCESS)
Sample Dixell® XM670K/XM679K
Controller Shown
15. Display Case Start-Up (Front Access)
A. Case
 Case powers up when properly field-wired.
 From the front of the case, lift deck to check that
the coil fans are functioning properly.
 Coil fans, (and in self-contained units),
compressor motor should turn on.
B. Lights
 Turn lights on.
> Self-Contained Units: Switch at rear. See next
page in this operating manual for illustration.
> Remote Cases With Light Controls On Controller:
 Case lights should be pre-programmed from
factory to come on when case is energized.
 If not, remove front panel and press light bulb
icon button (as shown in illustration below) to
turn lights on.
 All lights will come on at the same time.
> Remote Cases Without Light Controls On
Controller:
 Light are hard-wired to always come on when
case is energized.
 All lights will come on at the same time.
C. Temperature Controller (All Self-Contained
Units and some Remote Units)
 Temperature controller varies depending upon
model. See TEMPERATURE CONTROLLER
sections in this operating manual to determine
which controller matches your unit’s model.
 When case is energized, check that the
compressor symbol light is on.
 After case has been operational for a few
minutes, check that temperature starts to drop.
 If temperature controller does not begin cooling,
see TEMPERATURE CONTROLLER section in
this manual for adjustment instructions.
D. Saturated Suction Temperature (Remote
Units)
 See serial label on case for suction temperature
requirements and BTU requirements.
 See serial label on case for defrost schedule and
temperature termination parameters.
Light Bulb
Icon
Front Panel (May Be
Lifted Up And Off To
Access Controller)

12
INSTALLATION: DISPLAY CASE START-UP (REAR ACCESS)
Coil Fans
Deck Removal (For
Coil Fans Access)
Main Power
Switch
Light Switch
Sample Carel®
Temperature Controller
16. Display Case Start-Up (Rear Access)
A. Case
 Turn main power on at case rear.
 From the front of the case, lift deck to check that
the coil fans are functioning properly.
 Coil fans (and in self-contained units),
compressor motor should turn on.
B. Lights
 Turn lights on.
> Self-Contained Units: Switch at rear.
> Remote Cases: Usually, no light switch is
required (lights are hard-wired to always come
on when case is energized).
 All lights will come on at the same time.
C. Temperature Controller (All Self-Contained
Units and some Remote Units)
 Temperature controller varies depending upon
model. See TEMPERATURE CONTROLLER
sections in this operating manual to determine
which controller matches your unit’s model.
 When case is energized, check that the
compressor symbol light is on.
 After case has been operational for a few minutes,
check that temperature starts to drop.
 If temperature controller does not begin cooling,
see TEMPERATURE CONTROLLER section in
this operating manual for adjustment instructions.
D. Saturated Suction Temperature (Remote Units)
 See serial label on case for suction temperature
requirements and BTU requirements.
 See serial label on case for defrost schedule and
temperature termination parameters.

13
DRAIN, HOSE AND BRACKET PLACEMENT ILLUSTRATIONS
NOTE: BELOW ILLUSTRATIONS MAY
NOT EXACTLY REFLECT EVERY
PARTICULAR CASE’S FEATURES
2. Hot Gas Condensate System
 Hot gas serpentine coil is routed through a condensate
reservoir allowing water to be heated. This system
uses a wicking material (partially submersed) with
warm condenser air passing through it for evaporation.
 Also incorporates an overflow reservoir with heating
element to ensure complete condensation removal.
Three Condensate Systems Are Illustrated Below:
Illustration #1: Hot gas “CopeVap” condensate
system. “Copevap” is built into compressor unit.
Illustration #2: Hot gas condensate system.
Illustration 3A/3B : Electrical heat rod condensate
system. Note: Separate condensate pan.
>> Warning! Regardless of condensate system,
hose and drain trap MUST BE secured and
positioned over condensate pan to prevent water
seepage / spillage.
>> When sliding out condenser unit, be careful that
drain is not pulled from proper position.
1. Hot Gas “CopeVap” Condensate System
Clear PVC
Tube
Drain Trap
Hose thru bracket
Bracket
Note: Drain
positioned
directly over
Reservoir
“CopeVap”
Reservoir Clamp
3B. Isometric View of
Electrical Heat Rod Condensate System
Condensate Pan
Cond. Pan Positioning Bracket
Use Hose Clamp
to Secure Hose
to Adapter
Clear PVC
Tube
Drain
Trap
Refrigeration
Assembly
Base
Compressor Pan
Shipment Screw
(1 at each side)
Wicking
Material
This area of your unit
may widely vary (due to
display case options).
Suction
Accumulator
Hot
Serpentine
Coil
Receiver
Elec. Box, Hot
Gas Condensate
Overflow
Scroll
Compressor
Fan
Shroud
Filter
Drier
Sight Glass
3A. Front View of
Electrical Heat Rod Condensate System
Condensate
Pan
Drain
Trap
Condensate
Pan
Positioning
Bracket

14
OPTIONAL NIGHT AIR CURTAIN INST. & OPERATING (MODELS HV(L)RSS, HMO(L)36R, HMO(L)53R)
NOTE: THE
BELOW
ILLUSTRATION
MAY NOT
EXACTLY
REFLECT
EVERY
PARTICULAR
CASE’S
FEATURES OR
OPTIONS.
Night Air Curtain
Keyslots
Night Air Curtain
Retraction Magnets
View of Night Air Curtain
(Underside / Detached)
Acrylic
Sneeze Guard)
View of Night Air Curtain
(Topside / Attached)
Night Air Curtain
Retraction Magnets
“Finsert” (to
be inserted in
top board)
#10-32 screw
(to be in-
serted
through Night
Air Curtain
Keyslots and
Night Air Curtain
Retraction Magnets
Attachment Points
(Along Plate Outside
Acrylic Sneeze Guard)
Night Air Curtain Installation & Operating Instructions
1. Use caution when handling Night Air Curtain.
2. Display case may come with Night Curtain already attached. If not, a retrofit kit will be
provided. If using SCC-supplied retrofit kit, attach to display case by centering night
curtain along top-front of case as shown in illustration below. Attachment Magnets
will hold Night Air Curtain firmly in place. To attach to display case, place night curtain
on top of case as shown. Mark “key slot” locations using night curtain as a template
(you may have to retract the curtain from housing to reveal “keyslots”. Drill Ø11/32”
holes in top board 1/2” deep. Press “finserts” (shown below) into holes. Carefully tap
in with flat object to prevent top board damage. Attach Night Air Curtain with #10-32
screws.
3. Grasp the handle and pull downward to desired location INSIDE acrylic sneeze guard.
4. To return Night Air Curtain to its retracted position, grasp handle, lift up and away from
its magnetic attachment and carefully wind Night Air Curtain back into roll.
5. Caution! Do not allow spring-loaded Night Air Curtain to freely snap back into roll.
Doing so can eventually destroy Night Air Curtain’s tension and retractability.
6. To entirely detach Night Air Curtain from case, retract curtain (to access keyslots),
remove screws. Lift Night Air Curtain upward and away from case.

15
OPTIONAL NIGHT AIR CURTAIN INST. & OPER. INSTRUCTIONS (MODEL HVK(L)RSS / HVK42(L)RSS)
NOTE: THE
BELOW
ILLUSTRATION
MAY NOT
EXACTLY
REFLECT
EVERY
PARTICULAR
CASE’S
FEATURES OR
OPTIONS.
Night Air Curtain Installation & Operating Instructions
1. Use caution when handling Night Air Curtain.
2. Display case may come with Night Curtain already attached. If not, a retrofit kit will
be provided. If using SCC-supplied retrofit kit, place night curtain on top of case as
shown. Mark “keyslot” locations using night curtain as a template (you may have to
retract the curtain from housing to reveal “keyslots”. Drill Ø11/32” holes in top board
1/2” deep. Press the “finserts” (shown below) into holes. Carefully tap in with flat
object to prevent top board damage. Attach Night Air Curtain with #10-32 screws.
3. Grasp the handle and pull downward to desired location OUTSIDE acrylic sneeze
guard (see illustration below).
4. To return Night Air Curtain to its retracted position, grasp handle, lift up and away
from its magnetic attachment and carefully wind Night Air Curtain back into roll.
5. Caution! Do not allow spring-loaded Night Air Curtain to freely snap back into roll.
Doing so can eventually destroy Night Air Curtain’s tension and retractability.
6. To entirely detach Night Air Curtain from case, retract curtain (to access keyslots),
remove screws. Lift Night Air Curtain upward and away from case.
Night Air Curtain
Keyslots
Night Air Curtain
Retraction Magnets
Night Air Curtain
Retraction Magnets Attachment Points (Along
Plate Outside Acrylic Sneeze Guard)
Enlarge View of Night Air Curtain
(Underside / Detached)
Acrylic
Sneeze Guard)
View of Night Air Curtain
(Topside / Attached)
Night Air Curtain
Retraction Magnets
“Finsert” (to
be inserted in
top board)
#10-32 screw
(to be in-
serted
through Night
Air Curtain
Keyslots and
into “Finsert”)

Initial Positioning and Installation of Security Grid
1. Due to weight and size, Security Grid installment requires two (2) people.
2. After hoisting the Security Grid directly over Front Air Deflector, drop the (2)
Security Grid Positioning Tabs into the Baffle Airflow Slots (see enlarged view
below).
3. After securely positioned in the Baffle Airflow Slots, carefully and slowly lean the
Security Grid back against the two Security Brackets.
4. The next page in this manual will show how to secure the top of the Security Grid
to the Security Brackets.
Enlarged View (Below)
 Enlarged View (shown below) shows
Security Grid Positioning Tab slid into
Baffle Airflow Slot.
 There is one Security Grid Positioning
Tab on each Security Grid end.
 Tabs must be securely positioned in
both Airflow Slots prior to locking with
Padlocks.
Baffle Airflow
Slot
Security Grid
Security Grid
Positioning Tab
Front
Air Deflector
End Glass
16
NOTE:
ILLUSTRATIONS
MAY NOT
REFLECT EVERY
CASE’S SPECIFIC
FEATURES
SECURITY GRID INFORMATION - PAGE #1 of 2

Enlarged View (At Left)
 Illustrates padlock through both security
grid and security bracket.
 Note: One security bracket at each end of
display case.
Note: Both Casters and
Levelers shown for
illustrative purposes only.
End Glass End Panel Security
Bracket
Padlock Security
Grid
Securing Security Grid Into Place and Locking
1. After leaning the Security Grid back against the two Security
Brackets, slide the (two) Padlocks through the Security Grid and
the Security Brackets.
2. Securely lock the Padlocks (one Key fits both Padlocks).
Removing and Storing Security Grid and Locks
1. Due to weight and size, Security Grid removal requires two (2)
people.
2. Unlock and remove Padlocks. Lean Security Grid forward. Lift
upward and out of Baffle Airflow Slots.
3. Store Security Grid, Padlocks and Keys in a secure location to
prevent theft or damage.
17
NOTE:
ILLUSTRATIONS
MAY NOT
REFLECT
EVERY CASE’S
SPECIFIC
FEATURES
SECURITY GRID INFORMATION - PAGE #2 of 2

18
1. Fluorescent Light Fixture Warnings,
Precautions and Warranty:
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.
Warranty: Warranty will be void if claims arise
from negligence, misuse of goods, extreme
environmental conditions or improper
maintenance.
2. Fluorescent Light Fixture Location & Lighting:
 Light fixtures are located on underside of shelf
assemblies and at the top inside of case (just
beyond honeycomb air diffuser). See illustration
at top-right for general location.
 First time lighting may require short warm-up.
 Slightly dim or flickering of new bulbs is normal.
 If lights do not come 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 lower-right for general layout.
3. Removal of Lamp:
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.
4. Replacement 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 FUNDAMENTALS - FLUORESCENT LIGHTS
Lamp Pins
Light Socket Light Shield
Honeycomb
Fluorescent
Light
Fixtures
Cap
Plug
Receptacle
Raceway Receptacle, Plug and Cap
Raceway

19
MAINTENANCE FUNDAMENTALS - LED LIGHTS / BRACKETS / SHELVES / DRAIN / TXV VALVE
1. LED Light Removal / Replacement:
 LED lights they rarely require change-out.
 Contact Structural Concepts’ Technical Service
Department for replacement parts (see Technical
Service section of this guide).
 To remove LED light fixture, disconnect existing LED
light from its brackets & self-adhesive tape.
 Then, firmly grasp LED light while applying outward
pressure to brackets.
 Twist the LED away from the bracket to release.
2. Plug and Cord Positioning:
 Plug connects to LED light at raceway side of case.
 Before attaching LED light to case, plug must
connect to LED properly without cord doubling-back.
 See photos of proper vs. improper connections.
3. Proper Plug Insertion Into LED Light:
 Plug must be inserted into LED light properly or the
LED will not light up.
 Oval form of plug is to connect to LED light oval
form.
 See illustration at right.
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 Expansion Valve Access
 The drain and 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 expansion valve (TXV) are directly
below the access panel.
Bracket
LED Light
Bracket
Outward pressure to
be applied to bracket
to remove LED light
Fan Plug TXV Access
Panel
Bracket Retainer (Typical)
Evaporator
Fan
Plug’s Oval
Form
LED’s
Oval Form
LED Light Fixture

20
MAINTENANCE FUNDAMENTALS - REFRIG. PKG., TEMP. CONTROLLER, CONDENS. PAN ACCESS
Refrigeration Package Access
Note: Servicing to be accomplished by licensed
electrical / refrigeration contractor.
1. Air Filter
 Magnetic strips attached to the filter adhere the
filter to the rear grille.
 Clean the nylon mesh filter by rinsing thoroughly
with water against the air flow direction.
 Mild detergent removes smoke & grease stains.
 See illustration at top-right.
2. Pull Out Refrigeration Package
 Remove the rear grille. Grille may be slid upward
and out.
 Note: At initial slide-out, it may be necessary to
remove Compressor Pan Shipment Screws (see
illustration at right for location).
 Refrigerant lines are flexible to facilitate rear access
maintenance.
 Plastic glides are mounted at base to assist in sliding
the condenser out for access.
 Service connections are at the left of compressor.
 Slide condenser unit out 12 to 18 inches to access
high pressure service connection.
3. Temperature Controller (Self-Contained)
 Temperature Controller is located in the Ballast Box.
 Temperature / Defrost control settings are
programmable from these locations.
 Case Temperature Set Point is set at the factory, as
determined by case size & sensor probe location.
 Temperature is controlled by thermostat.
 If a temperature setting change is required, follow
instructions regarding Temperature Control
Programming Steps in the technical information
section of this operating manual.
 If service is required to the temperature control unit,
call Structural Concepts Corporation. Maintenance
should be performed by a certified technician.
 The toll-free number is listed in the Technical
Service section of this manual.
 See Temperature Controller section in this manual.
4. Thermometer
 Thermometers provided with equipment reflect
internal air temperature only (not actual food
temperature).
 Use probe thermometers to determine actual
product temperatures.
The Illustration below may not depict an exact
representation of your particular unit.
Condensate
Pan
Note: Illustration shown may not exactly reflect
your case’s refrigeration package layout.
5. Condensate Pan Access / Removal
 Turn off main power; allow condensate pan to cool.
 Lift rear grille up and off (no tools required).
 WARNING! Condensate Pan May Be Hot!
Check temperature of pan prior to handling.
 Withdraw condensate pan from the right side
behind electrical box.
 Unplug condensate pan from the electric outlet.
 Empty condensate pan contents into suitable
container. Replace rear panel when completed.
>> See next page for layout of Hot Gas Loop
condensate system.
Note: Temperature
Controller is on
Ballast Box
RearGrille
Compressor Pan
Shipment Screw
(one at each side)
Air Filter (Magnetic Strips
Adhere Filter to Rear Grille)