REV N DATE: 06/27/2023
USER MANUALS\20-78347_REVEAL_USER MANUAL_NR(L)(H)RRSSV_REF_COMBO_OVER-UNDER_CASE
SCC P/N
20-78347
USER
MANUAL
REVEAL® FREE STANDING OVER-UNDER REFRIGERATED COMBO MERCHANDISERS
> CONVERTIBLE UPPER SECTION MAY BE EITHER AMBIENT OR REFRIGERATED
> REFRIGERATED LOWER SECTION
> SELF-CONTAINED OR REMOTE UNITS
> UPPER SECTION: REAR SLIDING DOORS
> OPTIONAL RISERS (IN LIEU OF SHELVING)
> LOWER SECTION: REAR SLIDING DOORS WITH
PERFORATED ACRYLIC PLENUMS OR SOLID BACK PANELS
> CAUTION! DO NOT PUSH OR PULL ON UPPER GLASS ENCLOSURE!
> ONLY USE HANDLES (AT EACH END OF CASE) TO PUSH OR PULL CASE INTO POSITION!
Models Are Shipped WITHOUT
Panels and Cladding Attached.
See Pages 10 & 11 For Component
Attachment Instructions.
Reveal
READ AND SAVE THESE INSTRUCTIONS
®
Reveal® Model NR3631RRSSV
Self-Service Solid Back Rear Panel
Optional Product Steps / Shown As
Shipped From Factory (Without
Components) / Front Slide-Out
Access To Condenser Package
Reveal® Model NR3631RRSSV /
Rear Sliding Doors and Acrylic
Perforated Plenums / Shown As
Shipped From Factory (Without
Components) / Rear Slide-Out
Access To Condenser Package
Reveal® Model
NR4838RRSSV
Rear Sliding Doors
and Acrylic Perforated
Plenums / Cladding
Shown Attached
Structural Concepts Corp. ∙ 888 E. Porter Rd ∙ Muskegon, MI 49441 Phone: 231.798.8888 Fax: 231.798.4960 ∙ www.structuralconcepts.com
2
TABLE OF CONTENTS
TABLE OF CONTENTS …………………………………………………………………………………...…...
REVEAL® REFRIGERATED OVER-UNDER COMBO MODEL APPLICABILITY & DIMENSIONS ..
OVERVIEW / DISPLAY TYPE I vs. II / COMPLIANCE / WARNINGS / PRECAUTIONS ……………...
INSTALLATION: TOE-KICK & GRILLE REMOVAL / DISONNECTING CASE FROM PALLET …….
INSTALLATION, CONT’D: CASTER ADJUSTMENT / LOCK / UNLOCK / CASE REMOVAL
FROM PALLET .……….………………………………………………………………………..……...
INSTALLATION, CONT’D: SHELVING ASSEMBLY COMPONENTS ...………………………………...
INSTALLATION, CONT’D: MAIN POWER SWITCH / TOE-KICK & AIR INTAKE GRILLE / PLUG-IN
INSTALLATION, CONT’D: SHIPPING BRACE / ATTACHING FRONT PANEL COMPONENTS /
HANDLES ……………………………………………………………………………………………….
INSTALLATION, CONT’D: ATTACHING SIDE PANELS, REAR PANEL AND REAR GRILLE ……..
INSTALLATION, CONT’D: OPTIONAL ACRYLIC SECURITY COVER ………………………………...
CASE DESIGN: FRONT OF CASE (UNITS WITH LOWER REAR DOORS) .......................................
CASE DESIGN, CONT’D: REAR OF CASE (UNITS WITH LOWER REAR DOORS) ..……………….
CASE DESIGN, CONT’D: CONTROLLER / DC DRIVERS / MAIN POWER SWITCH /
CONDENSER COIL FILTER ….………………………………………………………………………
CASE DESIGN, CONT’D: NIGHT CURTAIN ACCESS AND OPERATION ……………………………..
CASE DESIGN, CONT’D: UPPER SECTION - AMBIENT VS. REFRIGERATED VIA REAR
COVER/BAFFLE POSITION ………………………………………………………………………….
CASE DESIGN, CONT’D: TUB AREA (AFTER DECK PAN REMOVAL) ……………………………….
CASE DESIGN, CONT’D: LED LIGHT SWITCH LOCATIONS / LED LIGHTS / THERMOMETERS ..
CASE DESIGN, CONT’D: REAR SLIDING DOOR REMOVAL / REAR PERFORATED PLENUM
CONTROL ………………………………………………………………………………………………
CASE DESIGN, CONT’D: CONDENSER PACKAGE (SELF-CONTAINED UNITS ONLY) …………..
PRODUCT PLACEMENT / UPPER SECTION & HONEYCOMB AIRFLOW / LOAD LINES ………….
CLEANING SCHEDULE (TO BE PERFORMED BY STORE PERSONNEL) ..…....…...…………...….
PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDER) ……....
TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL 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 ...…………………………………………………………………………...
SERIAL LABEL INFORMATION & LOCATION ..…………………………….……...…....……………..…
PROGRAMMABLE CONTROLLER INFORMATION ………………………………………......………….
TECHNICAL SERVICE CONTACT INFORMATION / WARRANTY INFORMATION…………………..
2
3
4-5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24-26
27-28
29-32
33
34
35
36
37
3
REVEAL® REFRIGERATED OVER-UNDER COMBO MODEL APPLICABILITY & DIMENSIONS
Model
Upper Display
Height
Overall Height Case Depth x Length
NR3651RRSSV 16” UDH 50 3/4”OH 33”D* x 35 3/4”L
NR3658RRSSV 16” UDH 57 1/2”OH 33”D* x 35 3/4”L
NR4851RRSSV 16” UDH 50 3/4”OH 33”D* x 47 3/4”L
NR4858RRSSV 16” UDH 57 1/2”OH 33”D* x 47 3/4”L
NR6051RRSSV 16” UDH 50 3/4”OH 33”D* x 59 3/4”L
NR6058RRSSV 16” UDH 57 1/2”OH 33”D* x 59 3/4”L
NR7251RRSSV 16” UDH 50 3/4”OH 33”D* x 71 3/4”L
NR72858RRSSV 16” UDH 57 1/2”OH 33”D* x 71 3/4”L
4
OVERVIEW / DISPLAY TYPE I vs. II / COMPLIANCE / WARNINGS / PRECAUTIONS - 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
ELECTRICAL
HAZARD
WARNING
KEEP
HANDS
CLEAR
OVERVIEW
• These Structural Concepts Reveal® cases are
designed to merchandise packaged products at
40 °F (4 °C) or less product temperatures.
• Cases should be installed and operated according to
this operating manual’s instructions to insure proper
performance. Improper use will void warranty.
NSF/ANSI TYPE I vs. II ENVIRONMENTAL CONDITIONS
This unit is designed for the display of products in ambient
environmental conditions where temperatures and relative
humidity are maintained within a specific range.
•
NSF/ANSI Type I Conditions: Product is displayed in
store conditions with maximum ambient temperature of
75 °F (24 °C) and maximum relative humidity of 55%.
•
NSF/ANSI Type II Conditions: Product is displayed in store
conditions with maximum ambient temperature of 80 °F
(27 °C) and maximum relative humidity of 55%.
• If you are unsure if your unit is classified as NSF/ANSI
Type I or Type II, see tag next to serial label on your case.
COMPLIANCE
• Performance issues when in violation of applicable
NEC, federal, state and local electrical and plumbing
codes are not covered by warranty. See below:
WARNINGS
• Please read the important warnings in this document
carefully as they can prevent injury or death.
• 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
CAUTION! IF YOUR UNIT IS SELF-CONTAINED, YOU MUST
CHECK CONDENSATE PAN POSITION & PLUG!
Water on flooring can cause extensive damage!
Before powering up unit, check and confirm that:
• Condensate pan is DIRECTLY UNDER condensate drain.
• Condensate pan plug is securely plugged into receptacle.
• Overflow pan has plug connected to its box. Units with optional Clean
Sweep® MUST HAVE two plugs connected.
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.
5
OVERVIEW / DISPLAY TYPE I vs. II / COMPLIANCE / WARNINGS / PRECAUTIONS - PAGE 2 of 2
PRECAUTIONS
• Following are important precautions to prevent
damage to unit or merchandise. Read carefully!
• See previous page for specifics on OVERVIEW,
NSF TYPE, COMPLIANCE and WARNINGS.
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.
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! LAMP REPLACEMENT GUIDELINES
LED lamps reflect specific size, shape and overall design.
Any replacements must meet factory specifications.
CAUTION
WIRING DIAGRAM FORMAT & LOCATION
• Each case has its own wiring diagram folded & in its own packet.
• Wiring diagram placement may vary; it may be placed near field
wiring box, raceway, or other related location.
CAUTION! DO NOT RELY ON THERMOMETERS OR
THERMOSTATS FOR ACTUAL PRODUCT (FOOD) TEMPERATURES.
• Thermometers and thermostats reflect air temperatures ONLY.
• For PRECISE food temperatures, use calibrated food thermometers
ONLY.
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!
• To prevent sagging or breakage, do not exceed 5 LBS (2.3 KG)
weight load per top glass section (between vertical supports).
• To prevent scratching or marring, do not place ANY items on glass.
5
LBS
6
INSTALLATION: TOE-KICK & GRILLE REMOVAL / DISONNECTING CASE FROM PALLET
Toe-Kick
Air Intake Grille
1. Remove Front Toe-Kick From Case
• To prevent damage to case, remove front
toe-kick from case before removing from pallet.
• Toe-kick is held in place by magnets only. No
screw removal is required.
• Place front toe-kick in secure location while
removing case from pallet.
2. Remove Air Intake Grille From Case
• To prevent damage to case, lift air intake grille
UP and OFF case.
• Air intake grille is held in place by magnets.
No screw removal is required.
• Place air intake grille in secure location
while removing case from pallet.
3. Disconnect Case From Pallet
• Use Phillips driver to remove screws
from shipping brackets. Remove and
discard shipping brackets from pallet.
• Place J-bar/pry bar under base frame.
Raise case up from pallet to take
weight off casters.
• With case raised, lower casters all the
way down against pallet (see next
step for detailed instructions on
lowering or raising casters).
• Remove rubber shipping blocks.
Pallet
Rubber
Shipping Block
Shipping
Bracket
7
4. Caster Height: Raising and Lowering
• Raise or lower casters (to adjust case height) by
rotating casters’ vertical adjustment rings.
• Rotate vertical adjustment ring clockwise to lower
caster (and increase height of case).
• Rotate vertical adjustment ring counter-clockwise
to raise caster (and decrease height of case).
5. Caster Rolling Capability: Unlocking
• Important! Case is shipped with caster mechanisms
factory set at ON (locked) to prevent case from
rolling.
• Unlock casters by pressing OFF on the caster
mechanism.
• See illustration at right.
6. Carefully Remove Case From Pallet
• Check that casters are lowered as far down as they
will go (as instructed in step #4).
• Use handles to carefully slide case to rear of pallet
(see illustration at right).
• Caution! 4 people are required for this task!
• Carefully lower to floor (using ramp if available).
• Slide pallet from under case as required.
• Maintain support of case at all times or center
of gravity may cause case to fall.
• See illustration at right.
7. Casters: Locking
• After case is at desired position (and height),
use level to check that case is level and plumb.
• Readjust height as needed (as instructed in
step #4).
• Locking Height: After proper height (and positioning)
of case is attained, tighten the two (2) set screws to
lock each caster’s height in place.
• Locking Movement: Then, to prevent casters’ rolling
capability, lock casters by pressing ON atop the “ON”
and “OFF” lever mechanism (shown at right). Case
will now be secured at its new location.
Vertical
Adjustment
Ring
Pallet
Support case
while removing
from pallet
Caster
Tighten Set
Screws To
Lock Caster
Height In
Place
Press “ON” Lever To
Lock Caster In Place
(And Prevent Caster
From Rolling)
Press “OFF” Lever To
Unlock Caster (And
Allow Casters To Roll)
Caster
Caster
INSTALLATION, CONT’D.: CASTER ADJUSTMENT / LOCK / UNLOCK / CASE REMOVAL FROM PALLET
Handles
Ramp
8
INSTALLATION, CONT’D: SHELVING ASSEMBLY COMPONENTS INSTALLATION, CONT’D: SHELVING ASSEMBLY COMPONENTS
8. Shelving Assembly Components
• Check that glass shelving is in proper position
before placing product in case
• Shelves may be adjusted vertically or entirely
removed from merchandiser.
• Metal shelving brackets ARE NOT able to be
angled. They are at a fixed 90° position.
• There are 12 components comprising each
shelf assembly:
A. Right bracket (with hooks to attach to slots in
upright)
B. LED light with magnets
C. Front shelf support rail (LED light attaches to
its inner cavity via magnets)
D. Cover (rests atop front shelf support rail)
E. Left bracket (hooks to attach to slots in upright)
F. Nylon thumbscrews (4 per shelf) secures
shelving during shipment. Note: Remove
(using pliers, if necessary) and discard
thumbscrews after case is installed so shelves
can be disassembled (to clean or service).
G. Rear shelf support rail
H. Left and right glass shelf/cover assemblies (glass
is affixed to covers with 2-sided tape from factory).
Caution! Glass pieces ARE NOT IDENTICAL!
Notches on underside metal covers determine
placement in case.
I. Nylon retainer clips (2 per shelf) secure brackets
during shipment. Note: To adjust or remove
shelves, you must remove retainers; pliers may
be required to accomplish this task.
Glass Shelving
Glass Shelving
E
A
B
C
D
G
From Factory: Transparent
2-Sided Tape Holds
Glass To Top Of Rear
Shelf Support Rail
H
Right Glass
Shelving Piece
Left Glass
Shelving Piece
Nylon Retainer
Clip (Typ.)
I
F
9
INSTALLATION, CONT’D: MAIN POWER SWITCH / TOE-KICK & AIR INTAKE GRILLE / PLUG-IN
9. Plug Case In / Turn Main Power Switch On
• Power cord with plug is factory-supplied.
• Plug case into customer-supplied electrical outlet.
• Note 1: Partially-disassembled view at right is
shown with casters removed for illustrative
purposes only. View/location of floor receptacle
is for illustrative purposes only.
• Note 2: Due to space constraints, it may be
necessary to pull out condenser package to
maneuver power cord plug around components
and into receptacle.
• Turn main power switch on.
• Check that case is energized. Lift deck pans to
confirm that evaporator fans are rotating).
• Turn on LED light switch at front-left header.
10. Toe-Kick To Case
• After case has been fully assembled and is in
position, return toe-kick to case.
• Toe-kick is held in place by magnets only. No
screw replacement is required.
11. Return Air Intake Grille To Case
• After case has been energized and main power
switch has been turned on, return air intake grille
to case.
• Air intake grille is held in place by magnets.
Screw replacement is not required.
• See illustration below.
Main Power Switch
Front Toe-Kick
Air Intake Grille
Factory-Supplied Power
Cord With Plug
Customer Supplied Receptacle (Sample
Floor Unit Illustrated). Casters Removed
For Illustrative Purposes Only.
Main Power
Switch
Note: Shipping Brace That Is At Air
Intake Side of Condenser Package
(Shown) Must Be Removed!
Note: Illustration shown may
not reflect every feature or
option of your particular case.
10
INSTALLATION, CONT’D: SHIPPING BRACE / ATTACHING FRONT PANEL COMPONENTS / HANDLES
• Then, slide front panel into case until it attaches
to case via lower magnets.
• See illustration below.
14. Handles On Sides of Case
• Handles may remain on case after it has been
moved into position and cladding is attached.
• However, if handles interfere with the placement
of cladding, they may be removed.
>> See Next Page For Instructions on ATTACHING
SIDE PANELS, REAR PANEL AND GRILLE.
12. Shipping Brace (Air Intake Side) vs. Air
Exhaust Side
• Shipping brace keeps condenser package secure
during shipment & while moving case into position.
• After case is in position, remove shipping brace
that is just below condenser package by removing
(2) screws.
• Note: Shipping brace that is opposite to air intake
side of condenser package (shown below) is NOT
to be removed.
13. Attaching Front Panel Components
• Carefully remove components from packaging.
• Note: All front panel components may be attached
to case via magnets (WITHOUT screw
attachments).
• Attach front toe-kick to case (via lower magnets).
• Slide front panel horizontal support bracket
into case’s support slot (line up arrows).
Shipping Brace Stays In Air Exhaust Side
Of Case. It Is ONLY To Be Removed From
Air Intake Side Of Condenser Package
(At Opposite End Of Illustrated Case).
Front Toe-Kick
Support Slot (For Front
Panel’s Horizontal
Support Bracket)
Front Panel
Horizontal
Support Bracket
Front Panel
Magnet (Typ.)
Front Panel
Handles (on Both Sides of
Case) May Be Removed If
They Interfere With Cladding
11
INSTALLATION, CONT’D: ATTACHING SIDE PANELS, REAR PANEL AND REAR GRILLE
15. Attaching Side Panels
• Attach side panels to case using slot/hook method.
• Use latches at case rear to firmly attach side
panels to case.
• See illustrations below.
16. Attaching Rear Upper Panel
• Place rear upper panel onto care rear.
• Four (4) magnets will hold it firmly in place.
• See illustration below
17. Attaching Rear Grille
• Use finger holes to place rear grille’s inner hooks
onto case rear’s lower shoulder screws.
• Snap onto case’s two (2) rear vertical magnets.
>> Note: Components may be removed in reverse
order they were shown being attached on this sheet.
Hook
Unlocked
Latch (Typ.)
Rear Grille
Side Panel (Typ.)
Rear Upper Panel
Slots
Side Panel
(Typ.)
Inserts
Hooks
Locked Latch
Hook
Note: Illustration shown may
not reflect every feature or
option of your particular case.
12
INSTALLATION, CONT’D: OPTIONAL ACRYLIC SECURITY COVER
18. Optional Acrylic Security Cover
Note: Illustrations reflects Model NR4835RSS; it
may not reflect every feature or option of your case.
A. View of optional acrylic security cover with holes
for grasping (for removing and replacing),
enlarged lock/key and lower protrusion.
B. Acrylic security cover rests against upper
security cover stop.
C. Acrylic security cover’s lower protrusions are to
rest in lower bracket slots (one in each bracket).
D. Upper acrylic security cover must rest against
upper security cover stop. Lock at both ends of
cover with locking mechanism.
> Important! After locking in place, store keys in safe
yet accessible place.
> If removing acrylic security cover, store in safe
location away from foot traffic as well as work areas
that could lead to scratching or marring of surfaces.
> See CLEANING SCHEDULE (TO BE PERFORMED
BY STORE PERSONNEL) for cleaning information.
Security Cover
Lock/Key
Acrylic Security
Cover
Upper
Security
Cover Stop
Lower Bracket
For Acrylic Security
Cover (Angled View)
C
Acrylic Security Cover
Lower Protrusion
D
Enlarged View of
Security Cover Lock,
Latch and Key
Upper Security
Cover Stop
Security
Cover
Lock/Key
B
Lower Bracket For
Acrylic Security Cover
A
13
CASE DESIGN: FRONT OF CASE (UNITS WITH LOWER REAR DOORS)
1. Front of Case (Units With Lower Rear Doors)
• Model NR4838RRSSV with lower rear sliding doors is shown below. Models with solid back (in lower
section) will not reflect every feature or option shown below.
• Acrylic perforated plenums are shown in lower section. Your unit may have solid back panel.
• Acrylic perforated plenums are controlled by rear door brackets’ opening and closing action.
• See illustration below
Deck Pans
Acrylic
Perforated
Plenums
(Optional)
Acrylic Air
Return
Deflector
Upper Shelving
Air Return
Grille
UV-Bonded
Glass Upper
Honeycomb
Air Diffuser
Convertible Upper Section
(Ambient /Refrigerated)
Refrigerated
Lower Section
Handles For
Pushing or Pulling
Unit Into Position
Note: Do Not Remove The
Shipping Brace That Is Opposite
The Air Intake Side of Condenser
Package (Shown).
UV-Bonded
Glass Upper
14
CASE DESIGN, CONT’D: REAR OF CASE (UNITS WITH LOWER REAR DOORS)
2. Case Design: Rear of Case (Units With Lower Rear Doors)
• Model NR4838RRSSV with lower rear sliding doors is shown below.
• Models with solid back (in lower section) will not reflect every feature or option shown below.
• Optional acrylic perforated plenums are shown in lower section. Your unit may have solid back panel.
• Power cord route may differ depending upon customer request.
• Side cladding, air intake grille, etc., has been removed for illustrative purposes only (see below).
Upper Section
Removable Rear
Doors
Lower Section
(With Optional Rear
Doors And Acrylic
Perforated Plenums)
Condenser
Package /
Clean Sweep
Coil Cleaner
Handles For
Pushing or Pulling
Unit Into Position
Caster (Typ.)
Magnets For
Rear Panel
& Grille
Thermostat
and Main
Power Switch
UV-Bonded Glass Upper
Upper Shelving
Note: Remove
Shipping Brace
On Air Intake Side
of Condenser
Package.
Magnets For
Rear Panel
& Grille
Magnets For Rear
Panel & Grille
15
CASE DESIGN, CONT’D: CONTROLLER / DC DRIVERS / MAIN POWER SWITCH / COIL FILTER
3. Controller / DC Driver Access / Components
• Remove air intake grille with slot/hook method; no
screw removal is required.
• Magnetic condenser coil filter is directly accessible.
See CLEANING SCHEDULE (TO BE PERFORMED
BY STORE PERSONNEL) for cleaning instructions.
• Remove base support bracket by removing 4 screws.
• Remove 4 screws from the controller/DC driver box
cover to access electrical components.
• Note: Only certified electricians are to access
electrical components in case.
• After accessing controller and/or DC drivers,
return components to case in reverse order
they were removed.
Air Intake
Grille
Main Power
Switch
Thermostat
Terminal Block
DC Drivers
Contactor
Magnetic
Condenser
Coil Filter
Note: Only The
Shipping Brace That Is
At Air Intake Side Of
Condenser Package
(Shown) Is To Be
Removed!
16
CASE DESIGN, CONT’D: NIGHT CURTAIN ACCESS AND OPERATION
4. Night Curtain: Access and Operation
The night curtain saves energy by preventing outside ambient air
from entering case. Use night curtain whenever possible.
A. Night curtain is attached to inside of case at underside of air return
grille and decks (at case front).
B. Night curtain handle (and retaining magnets) is to rest atop air
return grille (as shown in illustration). If not, remove decking;
remove (2) screws holding return air grille in place. Reach in,
grasp handle and pull night curtain upward. Replace grille.
Reattach screws.
C. Firmly grasp handle and slowly extend night curtain (shown green for
illustrative purposes). Attach magnets to front of honeycomb housing.
D. Side view of night curtain attachment to mid-deck header.
>> Caution! To retract curtain, carefully break magnet’s hold on mid-deck
header; slowly rewind curtain until it rests back on return air grille.
Caution! If allowed to ‘snap back’ to return air grille, it could be damaged!
Night Curtain Handle
(And Retaining Magnets)
Rest Atop Return Air Grille
B
D
Night
Curtain
Mid-Deck
Header
LED
Lamp
Handle
Magnets Honeycomb
C
Air Return
Grille
Acrylic Air
Deflector
Decks
Night
Curtain
A
17
CASE DESIGN, CONT’D: UPPER SECTION - AMBIENT VS. REFRIGERATED STATE
5. Ambient vs. Refrigerated Upper Section
• Illustrations shown with rear sliding doors removed
for illustrative purposes. Doors do not need to be
removed to access air discharge cover/baffle.
• Upper section of case can be either ambient (room
temperature) or refrigerated depending upon air
discharge cover position.
• Use finger holes to remove horizontal air discharge
cover from air discharge chamber.
• For upper section to be ambient, cover must be
positioned to BLOCK airflow (as shown in “A”).
• For upper section to be refrigerated, cover must be
positioned to ALLOW airflow to enter upper section
(as shown in “D”).
Air Return
A. Upper section in ambient state (cover in horizontal
position preventing airflow into upper section).
B. Air discharge cover shown removed from case via
finger holes (for illustrative purposes only).
C. Air discharge cover shown removed from case
and rotated vertically (for illustrative purposes only).
D. View of upper section in refrigerated state (cover in
vertical position ALLOWS refrigerated airflow into
upper section).
>> IMPORTANT! The air discharge cover MUST
BE placed in the air discharge chamber (in either
position) for case to properly function!
A
D
C
Air
Discharge Cover
Air Discharge Cover
Rotated To Allow
Refrigerated Airflow
To Enter Upper
Section
Air Discharge
Chamber
Finger Hole
Air Discharge Cover
Finger Hole
Air Discharge Cover In Horizontal
Position To Prevent Refrigerated
Airflow To Enter Upper Section
B
Air Discharge Chamber
Note: Illustrations shown may
not reflect every feature or
option of your particular case.
18
CASE DESIGN, CONT’D: TUB AREA (AFTER DECK PAN REMOVAL)
6. Tub Area After Deck Pan Removal
Note: Refrigeration service to be accomplished by refrigeration / electrical contractors only.
Caution! Turn main power off before accessing tub area.
• Illustration below shown after removal of deck pans.
• After cleaning or servicing in tub area, return deck pans to case and return power to case.
Refrigeration
Line Route
--- Case Rear ---
--- Case Front ---
Drain
Evaporator Coil
Cover
TXV
Evaporator
Fan
Refrigeration
Lines
Evaporator
Coil
Acrylic Return Air-
flow Deflector
Air Discharge
19
CASE DESIGN, CONT’D: LED LIGHT SWITCH LOCATIONS / LED LIGHTS / THERMOMETERS
7. LED Light Switch Locations
• Separate LED light switches are in upper and lower
sections of case (as shown below).
• Cases with lower rear sliding doors have different
light switch location than units with solid back rear
lower panel (as shown in illustrations below).
8. LED Lights
• LED lights are located at both header and
shelving of case (as shown below).
• Check that ALL of the light plugs are properly
connected to the LED light.
• Plug must be inserted ALL THE WAY into the
LED light orifice (with no gap) to work properly.
• See TROUBLESHOOTING section in manual
if LED lights malfunction.
9. Thermometer Function & Placement
• Separate thermometers are located in both
upper and lower sections of case.
• Cases with lower rear sliding doors have
different thermometer location than units with
solid back rear lower plenums (as shown in
illustrations below).
• Thermometer provides temperature of
refrigerated section of case.
• Thermometers reflect warmest air
temperature in merchandiser. They do not
provide actual food temperature.
• Use probe thermometers to determine
actual product temperatures.
Upper Section
LED Light
Switch And
Thermometer
Lower Section
LED Light
Switch And
Thermometer
Thermometer
--- Case With Solid Back Rear Lower Plenum ---
--- Case With Lower Rear Sliding Doors ---
Light
Switch
LED Light
Plug
20
CASE DESIGN, CONT’D: REAR SLIDING DOOR REMOVAL / REAR PERFORATED PLENUM CONTROL
10. Rear Sliding Door Removal
• Separate rear sliding doors are in both upper
and lower sections of the case.
• To remove rear sliding doors, move doors
toward center of the case.
• Individually lift each door up toward the top of
the case; pivot the bottom of the door out.
• Return doors to case in reverse order they
were removed.
11. Rear Perforated Plenum Control
• Optional acrylic perforated plenums are shown.
Your unit may have solid back panel.
• Units with acrylic perforated plenums have sliding
doors with angled brackets that insert into acrylic
perforated plenum slots (as shown below).
• As doors open and close, acrylic perforated
plenums follow.
Acrylic Perforated
Plenums (Optional)
21
CASE DESIGN, CONT’D: CONDENSER PACKAGE (SELF-CONTAINED UNITS ONLY)
Refrigeration
U-Tubes
Filter Dryer
Electrical
Starter Unit
Condenser Coil
Housing
Condenser Coil
Fans & Motors
Overflow
Condensate Pan
(With Electric Coil)
Hot Gas Loop
Condensate Pan
Sight Glass
Compressor
12. Condenser Package (Self-Contained Units)
Assembly/disassembly and servicing to be performed by licensed refrigeration contractor.
Condensate Package Configuration
• Illustration shown is from model NR3658RRSSV. Your unit’s component layout may slightly vary.
Controller DC
Driver
Evaporator
Section
Drain PVC
Optional Clean Sweep®
Condenser Coil
Cleaning System
22
START-UP AND OPERATION, CONTINUED: LOAD LIMITS
22
PRODUCT PLACEMENT / UPPER SECTION & HONEYCOMB AIRFLOW / LOAD LINES
• Caution! Do not impede honeycomb air
diffuser’s airflow route (to return air grille) with
product.
• Caution! You must also keep product OFF
return air grille at case front (illustrated below).
4. Load Lines
• Load lines represent the maximum height that
product can be place and/or stacked in case.
• Keep product at or under load lines to assure
that refrigerated airflow is properly cycled from
honeycomb air diffuser through return air grille.
• Proper product placement will maintain
acceptable product temperature (shown below).
1. Product Placement
• Product can be placed on decking or shelves
within display area.
• A wide range of product may be displayed.
2. Convertible Upper Airflow Consideration
• Upper section airflow diffuses at rear with return
airflow grille at front.
• Do not block air diffuser grille or return air grille.
• Product must be kept 1” from upper shelves and/or
upper glass area to enhance free airflow.
3. Honeycomb Airflow Consideration
• Airflow from honeycomb air diffuser flows over (and
around) product to return air grille at case front.
Honeycomb
Air Diffuser
Sample Product
5”
Angled View Of
Return Air Grille
Model NR3658RRSSV
(Reveal®) Over-Under Combo
Unit Shown Below. Your Unit
May Slightly Differ.
Air Deflector
Convertible
1.25” Air
Diffuser Grille.
No Not Block!
1” Minimum
Load Line
1” Minimum
Load Line
Angled View Of
Return Air Grille
Caution! Return
Air Grille Must Not
Be Blocked By
Product!
1” Min.
Load Line
Load Line 1”
Min. Below
Honeycomb
Air Diffuser
Caution! Return
Air Grille Must
Not Be Blocked
By Product!
23
CLEANING SCHEDULE (TO BE PERFORMED BY STORE PERSONNEL)
FQ* CLEANING INSTRUCTIONS
D Glass Surfaces: Clean glass surfaces and shelves with household or commercial glass cleaner.
D Rear Sliding Door Exterior Glass: Clean with household or commercial glass cleaner. Clean out rear door
track with moist cloth.
D End Panels, Front Panel, Toe-Kick, etc.: Wipe off with warm water, mild soap solution & non-abrasive cloth.
D Decks: Wipe off decks with moist cloth dipped in mild soap and water solution.
D Acrylic: Air Return Deflector / Optional Acrylic Security Cover / Rear Perforated Plenums:
• Clean: Use soft, clean cloth dipped in solution of warm water and small amount of mild, liquid soap. Apply
light pressure while wiping away all smudges and residue.
• Rinse: Use pure water in spray bottle to rinse.
• Dry: Use soft, clean cloth (rather than abrasive paper towel).
• Avoid: Never use window or household cleaners such as Windex®, Formula 409®, or fantastik®. Never
use scouring compounds or solvents such as acetone, gasoline, alcohol, 111 trichloroethylene, WD-40®
or lacquer thinner.
• Polishing: Buff with light coat of automobile paste wax or plastic cleaner/polish.
• Scratches: Use high quality buffing compound. Carefully follow instructions.
D Stainless Steel Surfaces:
• Wash with a solution of hand dishwashing liquid detergent and water or a solution of baking soda and
water. Rinse and polish dry with paper towel or soft cloth.
• Never use scouring powders or steel wool as they will scratch stainless steel.
• Brighten by polishing with a cloth dipped in vinegar or in ammonia; sprinkle baking soda on sponge and
rub gently; rinse. Polish dry with paper towel.
• Remove streaks or heat stains from stainless steel by rubbing with club soda.
W Magnetic Condenser Coil Filter (Self-Contained Units Only):
• This filter helps prevent dust particles from entering condenser coil. It is accessible at air intake side of
case. Clean magnetic condenser coil filter by following either step 1 or 2; then follow step 3:
1. Magnetic condenser coil filter is dishwasher safe; remove from case (no screw removal required) and use
a rag or soft-bristled brush to wipe off excess dust particles from filter. Run in normal dishwasher cycle.
Remove from dishwasher. Dry with soft cloth or paper towel. Return to case.
2. If dishwasher is used, remove magnetic condenser coil filter from case. Use a rag or soft-bristled brush to
wipe off excess dust particles from filter. Submerse in warm, soapy water. Use soft-bristled brush to
remove dust, dirt, grease and grime that may collect on filter. Rinse thoroughly.
3. Dry with soft cloth or paper towel (as shown below) or allow to air dry. Replace.
M Rear Air Discharge Chamber and Rear Air Discharge Cover/Baffle (Upper Section Only):
• Remove rear air discharge cover/baffle from case. Wipe down baffle with soft cloth dipped in mild soap
and water solution OR submerse in warm soapy water and clean with bristled brush.
• Use vacuum with soft bristled extension to clean out rear air discharge chamber. Then, wipe down
chamber with soft cloth dipped in mold soap and water solution.
• Dry both cover/baffle AND rear air discharge chamber with paper towel or clean cloth. Return rear cover/
baffle to case in same position it was in before cleaning. See CASE DESIGN, CONT’D: UPPER
SECTION - AMBIENT VS. REFRIGERATED VIA BAFFLE POSITION section in manual for illustrations.
Q Under Case Cleaning:
> Remote units: Remove lower rear panel (and/or front panel) and clean as directed below.
> Self-contained units/moving case: Remove lower grille and opposite side (front or rear panel) panel. Unlock
casters and lower casters to floor. See INSTALLATION, CONT’D.: CASTER ADJUSTMENT / LOCK /
UNLOCK / CASE REMOVAL FROM PALLET section in manual for instructions. Slide/roll case out of current
position. Clean as directed below (in self-contained units/stationary case section).
> Self-contained units/stationary case: Remove lower grille (at intake side); slide condenser package out from
under case. Optional: remove panel that is opposite lower grille. Clean as directed below.
• Use vacuum with brush to remove all dust, dirt, food particles or residue from underside of case.
• Replace lower grille (and/or panel that is opposite lower grille) when cleaning is complete.
*Frequency: D = Daily / W = Weekly / M = Monthly / Q = Quarterly
24
FREQ. INSTRUCTIONS
Quarterly Condensing Coil:
• Remove air intake grille to access area. Simply lift up and off.
• Roll/slide out condenser package. Note: At initial slide-out, it may be necessary to remove
two (2) compressor pan shipment screws to slide it out from under case.
• Warning! Coil fins are sharp. Handle with care!
• Caution! Airborne dust can contaminate food! Use wet rags to cover area where air
pressure is blowing.
• Use air pressure or industrial strength vacuum; clean dust and dirt that may collect on
condenser coil.
• Slide/roll condensing package back under case.
• Return air intake grille to case.
Quarterly Condenser Package: Caution! Disconnect power from case before cleaning!
• See CASE DESIGN, CONT’D: CONDENSER PACKAGE (SELF-CONTAINED UNITS
ONLY) section in manual for illustrations.
• Warning! Condensate pan may be HOT! Disconnect power from case and allow to cool
before cleaning evaporator pan!
• Remove air intake grille from case (no screw removal is required).
• Slide/roll condenser package out from under case.
• Use a scrub-brush and a de-scaling solution such as CLR® (to prevent corrosion, lime and
rust). Follow instructions as to proper dilution, safety precautions and scrubbing method.
• If electric coil overflow evaporator pan is dirty, clean it (and in same manner) while cleaning
rest of condenser package.
• After thoroughly cleaning condensate pan with scrub-brush and solution, rinse thoroughly
with clean water (in spray bottle) and wipe dry with sponge or paper towel.
• Use moist cloth to wipe off dust & debris that collects on various parts (fans, sight glass,
condensate overflow pan, etc.).
• Slide condenser package back under case.
• Return air intake grille to case (no screws required).
Quarterly Under Case Cleaning: Once refrigeration package is clear of unit, vacuum under case to
remove dust and dirt that may collect under case.
Quarterly Tub Area (Evaporator Coil, Drain, Fans, Brackets, Etc.):
Caution! Disconnect power from case before cleaning tub, coil, fan, motor and drain area!
• See CASE DESIGN, CONT’D: TUB AREA (AFTER DECK PAN REMOVAL) section in
manual for illustration.
• Use vacuum to clean entire area.
• After vacuuming, clean area with warm water, clean cloth, and mild soap solution.
• Remove any debris that may clog drain.
• Wipe down fan blades, motors and brackets with moist cloth.
Quarterly Honeycomb: Check honeycomb air diffuser to determine if it is dirty. If dirty, remove from case.
See next page for cleaning specifics.
WARNING! TURN OFF CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE!
PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDER) - PAGE 1 OF 3
25
PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDER) - PAGE 2 OF 3
NOTE: PREVENTIVE MAINTENANCE IS TO
BE PERFORMED BY TRAINED SERVICE
PROVIDERS ONLY.
Preventive maintenance should be
performed quarterly (unless conditions
warrant a more frequent replacement cycle).
Honeycomb Air Diffuser Removal
A. Wedge non-metallic device of suitable
strength (such as a ballpoint pen or stylus)
between honeycomb and end panel.
Caution! Use care not to dislodge the heating
wire (that prevents condensation on the
honeycomb retainer).
B. Apply pressure to collapse the honeycomb to
allow it to be pulled out of honeycomb retainer.
C. Pry downward & away from honeycomb
retainer.
Clean honeycomb with warm water and soap
solution. Submerse if necessary. Use brush to
dislodge stubborn or sticky residue. Dry by
using vacuum’s ‘blow mode’.
Honeycomb Air Diffuser Installation
D. Squeeze honeycomb into the honeycomb
retainer.
E. Carefully slide honeycomb into place.
F. Adjust honeycomb so that it fits flat against
retainer. It must not be wavy or out of position.
A
B
C
D
E
F
Honeycomb
Air Diffuser
26
PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDER) - PAGE 3 OF 3
FREQUENCY INSTRUCTIONS
Quarterly Optional Clean Sweep™ Condensing Coil Cleaner: Disconnect power from case
before servicing the Clean Sweep™ Condenser Coil Cleaner!
• Remove air intake grille (by lifting up and off); no screw removal is required.
• Slide/roll out condensing package from underside of case assembly.
• Remove the four (4) screws holding the Clean Sweep™ rail intact.
• Remove the Clean Sweep™ rail.
• Wash rails’ brushes in hot water and mild soap solution.
• If brushes are worn, they must be replaced. Call Technical Service Department to
replace. Toll-Free number is listed at end of manual.
• Clean condensing coil: Use air pressure or industrial strength vacuum; clean the dust
and dirt that may collect on the condenser coil.
• Caution! Coil fins are sharp. Handle with care!
• Reattach Clean Sweep™ rail to condensing unit (4 screws).
• Slide/roll condensing package back under case.
• Replace air intake grille to case (4 screws).
• See photos below.
(4) Screws
--- Above photos are taken after air intake grille has been removed from case ---
Brushes
Rail
27
TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL) - PAGE 1 OF 2
CONDITION TROUBLESHOOTING
Water Is On The Floor Call service provider.
Fan Emits Excessive Noise Call service provider.
Case Lights Are Not Working Check that light switch is in the on position.
Check that ALL of the light cords and plugs are properly connected.
See next page for step-by-step connection instructions and illustrations.
If case lights still do not come on, call service provider.
Case is Not Holding Proper
Temperature
If a large amount of warm product was added to the case, it will take time
for the temperature to adjust. Product must be pre-chilled before placing
in case.
Check that the case is not in the sun or near a heat or air-conditioning
vent. See OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS /
PRECAUTIONS section in this manual for specifics.
If case is located near outside doors, temperature fluctuation can hinder
unit’s ability to maintain temperature.
• Check air return grilles (area at front of decking) for obstructions.
• DO NOT set product on air grilles as this will prevent proper airflow!
If case still is not holding proper temperature, call service provider.
28
TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL) - PAGE 2 OF 2
LED Light
(Upper Section)
LED Light
(Lower Section)
CONDITION TROUBLESHOOTING
Case Lights
Not Working
Check that light switch is in the ON position.
• See CASE DESIGN, CONT’D: LED LIGHT SWITCH LOCATIONS / LED LIGHTS /
THERMOMETERS section in manual for switch location (regardless of case design).
If case is not hard-wired, check that power cord is properly connected to wall outlet.
Check that ALL of the light plugs are properly connected to the LED light.
• Plug must be inserted ALL THE WAY into the LED light orifice (with no gap).
• See illustrations below-left.
Power may not be reaching the case.
• Contact store management to have trained service provider perform troubleshooting.
• Troubleshooting to be performed by trained service providers only is on next page.
If case light still do not come on, it may need to be replaced.
• Contact Structural Concepts’ Technical Service Department for replacement light
(see TECHNICAL SERVICE section of this manual for contact information).
• To replace, disconnect plug from existing LED light. Disconnect LED light from its
brackets. Replace with new LED light. Insert plug ALL THE WAY into LED light orifice.
No Gap
Gap
LED Light
Plug
Note: Illustration Shown May Not
Exactly Reflect Every Feature or
Option of Your Particular Case.
29
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) - PAGE 1 OF 4
CONDITION TROUBLESHOOTING
Water Is On The
Floor
Caution! Disruption of power or malfunctioning condensate pan (or electric coil
overflow condensate pan) may cause water to overflow pan and seep onto flooring
causing damage! Until condensate pan(s) are functioning (or are replaced), follow
these procedures:
• Use wet vacuum (or mop & bucket) to remove standing water.
• Use ‘catch pans’ for water to drain into. Swap out regularly until case has
completely drained.
• When power to case is restored, condensate pan should function properly and
water will no longer overflow onto flooring.
Check that the drain trap is free of debris.
Check that the drain PVC is correctly positioned over condensate pan.
Check store conditions. To prevent condensation in NSF/ANSI Type I environments,
maximum conditions are to be 55% relative humidity / 75° Fahrenheit. For Type II
environmants, maximum conditions are to be 55% relative humidity / 80° Fahrenheit.
Check that electric coil overflow condensate pan is properly plugged in or connected.
30
CONDITION TROUBLESHOOTING
Fans Emit
Excessive Noise
Check that the case is aligned, level and plumb.
Check evaporator fans for cleanliness.
Unplug/power off fan motors. Check motor shaft for bearing wear.
Check that fan motors are securely mounted in brackets.
Verify that fan blades are securely mounted to fan motor.
Check that nothing is preventing blade rotation.
Check that the fan shroud is properly secured.
Fans Are Not
Working
Check that the MAIN power switch is on.
Check that fans are plugged in at the fan shroud.
Check for foreign material obstructing fan performance.
Check that fan blades freely rotate within fan shrouds
Check that power is going to fans
Check that fan wiring is connected on terminal blocks.
System Not
Operating
Check that the utility power is on.
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY), PAGE 2 OF 4
31
CONDITION TROUBLESHOOTING
Case Lights Are
Not Working
See TROUBLESHOOTING (TO BE PERFORMED BY STORE PERSONNEL)
section in manual for most common troubleshooting solutions.
Check power.
• If power is not supplied to the case, facility may have faulty power distribution.
• If power is supplied to the case but lights are not energized, case’s power supply
may be faulty.
Case Is Not
Holding
Temperature
If a large amount of warm product was added to the case, it will take time for the
temperature to adjust. Unit needs product to be pre-chilled.
Temperature changes during defrost mode but will return to normal. Fourth LED will
indicate defrost cycle in progress.
Check that case is not in sun or near a heat or air-conditioning vent.
If case is located near outside doors, temperature fluctuation can hinder unit’s ability
to maintain temperature.
Check that condenser coil has been cleaned.
Check that magnetic air filter (attached to rear grille) has been cleaned.
See CLEANING SCHEDULE (TO BE PERFORMED BY STORE PERSONNEL)
section in operating manual for instructions.
Check return air grilles for obstructions.
Check sight glass for flashing and/or low charge.
Check set point temperature; it may be adjusted too high.
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY), PAGE 3 OF 4
32
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY), PAGE 4 OF 4
CONDITION TROUBLESHOOTING
Digital Control
Display Is Blank
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
System Is Not
Operating
Check that the utility power is on.
Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
Condensing Unit
Is Not Operating
Check that the power is turned on.
Determine if temperature controller settings are properly set. See your case’s serial
label for your model’s specified settings. See SERIAL LABEL LOCATION &
INFORMATION LISTED / TECH INFO & SERVICE section in manual for label
location, etc.
33
TROUBLESHOOTING (BY TRAINED SERVICE PROVIDERS ONLY) - CONDENSING SYSTEM
CONDITION TROUBLESHOOTING
Head Pressure
Too High
Check that the condensing coil is not dirty or covered.
Check that condensing fans are working.
Check that refrigerant is not overcharged.
Perform sub-cooling check and verify that no contaminates are in system.
Check that liquid line filter dryer is not plugged.
Check that close-offs are intact (around condensing coil) and that air is not
recirculating.
Check that store ambient temperature isn’t above maximum allowed. See
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING /
PLUGS section in this manual.
Head Pressure
Too Low
Check if sight glass is flashing or showing low charge.
Check that suction pressure isn’t too low.
Check that compressor reed valves aren’t bad. Look for high suction/low head
pressure. Perform pump-down.
34
TROUBLESHOOTING (BY TRAINED SERVICE PROVIDERS ONLY) - EVAPORATOR SYSTEM
CONDITION TROUBLESHOOTING
Low Suction
Pressure
Check if sight glass is flashing or showing low charge.
Check that expansion valve (TXV) isn’t restricted. Check element charge.
Check that liquid line or filter isn’t restricted. Check that refrigeration lines and/or
hoses are not kinked on either high or low sides.
Check that evaporator fan motors are working.
Check that superheat is between 6 °F to 8 °F.
Check that there is no air recirculation around evaporator coil.
Check that evaporator coil is not iced up.
High Suction
Pressure
Check for refrigerant overcharge.
Check that compressor reed valves aren’t bad. Look for high suction/low head
pressure. Perform pump down.
Check that the “cooling load” isn’t high. Product must be pre-chilled before placing in
refrigerated section of case.
Check that case is at least 15-feet from exterior doors, overhead HVAC vents or any
air curtain disruption.
Check that unit is not exposed to direct sunlight via windows or any other heat source
(ovens, fryers, etc.).
Check that superheat adjustment isn’t low.
Check TXV bulb installation
a. Poor thermal contact.
b. Warm location.
35
SERIAL LABEL LOCATION & INFO LISTED / TECH INFO & SERVICE / REFRIGERATED CASES ONLY
--- Sample Serial Label For Refrigerated Cases ---
MODEL NRS3648RXV-SAMPLE
SERIAL NO. 12345X30DZ098765
888 E. Porter Rd - Muskegon, MI 49441
3048256
Conforms to UL Std. 471
Conforms to NSF/ANSI Stds. 2 & 7
CERTIFIED TO CAN/CSA
STD C22.2 NO 120
ELECTRICAL RATING
REFRIGERANT
DESIGN PRESSURE
MINIMUM CIRCUIT AMPACITY
MAXIMUM OVERCURRENT
120/1/60 16 A
R513A AMOUNT 50 OZ
HIGH 186 LOW 88
20A
20A
Super Heat Temp 6-8 °F FOR PARTS AND SERVICE
Defrost 6 defrosts per day, 45 °F CALL 1-800-433-9490
Serial Label Location & Information Listed /
Technical Information & Service
• Serial labels are affixed at a wide range of places
(on the header, near thermostat, at case rear,
behind panels/toe-kicks, on electrical boxes, etc.).
• Serial labels contain electrical, temperature and
refrigeration information, as well as regulatory
standards to which the case conforms.
• Sample serial label shown below.
• For additional technical information and service, see
the TECHNICAL SERVICE page in this manual for
instructions on contacting Structural Concepts’
Technical Service Department.
Reveal
Sample QR Code
SCAN FOR PRODUCT LITERATURE
SAMPLE ONLY
PROGRAMMABLE CONTROLLER (SELECT, CLICK ON OR SCAN QR CODE FOR INFORMATION)
36
Carel® iJF Platform
Carel® PJEZ Platform
Carel® ir33 Platform
Dixell® XM670K-XM679K Platform
To Access Information About The Programmable
Controller That Is Used On Your Case,
Follow These Instructions:
> If Viewing This Document on Smart Phone, Tablet
or Computer, Select/Click On The QR Code at Right.
> If Viewing This Document In Print (Hard Copy),
Scan The QR Code at Right With Your Smart Phone
or Tablet.
Determine Which Programmable Controller Is On Your Case (Controllers
That Are Commonly Used By Structural Concepts Are Shown Below).
Your Particular Programmable Controller May Differ.
STRUCTURAL CONCEPTS TECHNICAL SERVICE CONTACT INFORMATION & LIMITED WARRANTY
37
TECH SERVICE/WARRANTY CONTACT INFO:
1 (800) 433-9490 / EXTENSION 1
DAYS/HOURS AVAILABLE:
MONDAY - FRIDAY (CLOSED HOLIDAYS)
8:00 a.m. TO 5:00 p.m. EST
YOU MUST HAVE THE FOLLOWING INFO AVAILABLE
BEFORE CONTACTING STRUCTURAL CONCEPTS:
SERIAL NO. / MODEL NO. / STORE NO. / STORE
ADDRESS / DETAILS (PHOTOS, LEAK LOCATIONS,
DAMAGE, STORE’S AMBIENT CONDITIONS, ETC.)
To Access The Limited Warranty To Your
Case, Follow These Instructions:
> If Viewing This Document on Smart Phone,
Tablet or Computer, Select/Click On The QR
Code at Right.
> If Viewing This Document In Print (Hard
Copy), Scan The QR Code at Right With Your
Smart Phone or Tablet.
