Structural Concepts Oasis B4732 Installation instructions

Rev AI Date: 12.20.2017
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INSTALLATION &
OPERATING MANUAL
SCC P/N 54110
M O B I L E S E R I E S
888 E. Porter Road · Muskegon, MI 49441 Phone: [phone] Fax: [phone] www.structuralconcepts.com
Model B42C
Model B32
Model B43C
Model
B6632SC.6241
Model B4732 (With Optional
Roll-Down Security Cover)
OASIS REFRIGERATED “BOX CASES” / SELF-CONTAINED & REMOTE / OPTIONAL
SECURITY COVERS / TOP-MOUNTED CONDENSER PKGS ON CERTAIN MODELS
* See Next Page For List of Models Covered
By This Manual. Note: This Manual May Also
Be Applicable To Models Not Listed Herein.
Important!
If You Are
Adjoining Cases,
See Synchronous
Defrost Connection
Instructions On Page 8
AND Adjoinment
Instructions on
Page 9 Of This
Operating Manual.
Model
B22.6817 Model B5932TM.6785
(Similar To B4732TM.6785)
(Top-Mounted Condenser
Pkg. / Underside Pump) /
Optional Rear Doors
Model B8832 (With Optional
Roll-Down Security Cover)

2
TABLE OF CONTENTS / MODELS TO WHICH THIS MANUAL IS APPLICABLE
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING / PLUGS ………………………..
INSTALLATION: CASE REMOVAL (VIA LEVELERS & CASTERS) …….……………………………………..……..
INSTALLATION, CONTINUED: POSITIONING & ALIGNING CASE / ADJUSTING LEVELERS .…………..……..
INSTALLATION, CONTINUED: OPTIONAL SECURITY COVER INSTRUCTIONS ……………………….…….….
INSTALLATION, CONTINUED: SYNCHRONOUS DEFROST CONNECTION (OPTIONAL) …………….…….….
INSTALLATION, CONTINUED: ADJOINMENT INSTRUCTIONS ……………………………………..…..………….
FRONT GRILLE REMOVAL / CONDENSER PACKAGE / OVERFLOW PAN / MAIN POWER SWITCH /
CAREL® THERMOSTAT …………………………………………………………………………………………
EVAPORATOR COIL FAN DISCHARGE / TXV (THERMOSTATIC EXPANSION VALVE) …………...………..….
HONEYCOMB AIR DIFFUSER ACCESS ……………………………………...…...…………….………….…………..
FLUORESCENT LIGHT FIXTURES …………......………………………………………………………………….…....
LED LIGHT FIXTURES ………………………………………………………………………………………………..…....
OPTIONAL ROLL-DOWN SECURITY COVER - MODEL B4732 ILLUSTRATED ...……………………….………..
OPTIONAL DUAL REAR DOORS (WITH PERFORATED PLENUM DOORS) / B5932TM SHOWN …………..…...
OPTIONAL SINGLE REAR DOOR (WITH PERF. PLENUM AS PART OF DOORS) / B3632TM SHOWN ...………
WALL SPACING / REAR VENTING (MAY NOT BE APPLICABLE TO YOUR MODEL) ..…………...……………..
CONDENSATE PAN ACCESS: STANDARD UNITS ………..……………………………………………..….............
CONDENSATE PAN ACCESS: REMOTE UNITS WITH CONDENSATE PANS ONLY …………………..............
SELF-CONTAINED HOT GAS LOOP CONDENSATE PACKAGE LAYOUTS ……………………………………....
SELF-CONTAINED HOT GAS LOOP CONDENSATE PACKAGE LAYOUTS - TOP MOUNTED ………………...
UNDERSIDE PUMP/DRAIN UNIT (FOR UNITS WITH TOP-MOUNTED SELF-CONTAINED COND. PKGS.) ….
LOAD LEVEL GUIDE / TEMPERATURE GUIDE (MODEL B42 SHOWN / APPLICABLE TO ALL OTHER
MODELS IN MANUAL) …..………………………………………………………………………………………..
CLEANING SCHEDULE (TO BE PERFORMED BY STORE PERSONNEL) …..……………...…....……………….
TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) …………………….
TROUBLESHOOTING (BY TRAINED SERVICE PROVIDERS ONLY) - CONDENSING SYSTEM ………….......
TROUBLESHOOTING (BY TRAINED SERVICE PROVIDERS ONLY) - EVAPORATOR SYSTEM ………….…..
SERIAL LABEL LOCATION & INFORMATION LISTED / TECH INFO & SERVICE ……….…..………...…………
CAREL® CONTROLLER OPERATING INSTRUCTION …………………………………………..………...………....
TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION …...……………..…………..
3-4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21-22
23
24
25
26
27-31
32-34
35
36
37
38-40
41
B22.6817
B32
B3632
B3632TM
B42
Partial List of Models To Which This Manual Is Applicable
B42.5955
B42.6662
B42C
B43C
B4732
B4732SC.6162
B4732TM
B4732TM.6785
B5932
B5932TM
B5932TM.6785
B6032SC.6162
B6032SC.6241
B62
B6632SC.6241
B7132
B7132TM
B7132SC.6162
B7132SC.6241
B82
B8832
B8832TM
B9232

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OVERVIEW
 These Structural Concepts merchandisers are
designed to merchandise packaged products at 41 °F
(5 °C) or less product temperatures.
 Product must be pre-chilled to 41 °F (5 °C) or less
product temperatures prior to placing 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 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 55% 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
 This sheet contains important warnings to prevent
injury or death.
 Please read carefully!
PRECAUTIONS, CORD/PLUG MAINTENANCE &
WIRING DIAGRAM INFORMATION
 See next page for PRECAUTIONS, CORD/PLUG
MAINTENANCE 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
Condensate Pan is Hot!
Disconnect and allow to cool
before cleaning or removing from case.
WARNING
ELECTRICAL
HAZARD
WARNING
KEEP
HANDS
CLEAR
WARNING
HOT
SURFACE
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 / WIRING / PLUGS - PAGE 1 of 2
ATTENTION
CONTRACTORS

4
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! 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.
CAUTION
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
PRECAUTIONS
 This sheet contains important precautions to prevent
damage to unit or merchandise.
 Please read carefully!
 See previous page for specifics on OVERVIEW,
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! POWER CORD AND PLUG MAINTENANCE
Risk of electric shock. If cord or plug becomes damaged,
replace only with cord and plug of same type.
OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING / PLUGS - PAGE 2 of 2
CAUTION! 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.

5
INSTALLATION: CASE REMOVAL (VIA LEVELERS & CASTERS)
1. Remove Case From Skid (Levelers)
 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!
 Carefully slide unit to rear of skid and tip backward
off skid.
 Illustration may not reflect every feature or option
of your particular case.
 Case can be repositioned with pallet truck when
front lower panel is removed. Blocking may be
necessary to obtain adequate height.
Slide Skid Out
Ramp
Skid
Support case
while rolling
down ramp.
2. Remove Case From Skid (Casters)
Remove shipping brackets that secure casters to skid
 Important! Case is shipped with levelers in the
DOWN position (for stability). To prevent damage to
the case, all levelers must be raised ALL THE WAY
UP before moving unit off skid and into position.
 After levelers are raised all the way up, place ramp
up against skid (to allow case to smoothly roll off
from skid).
 Maintain support of case at all times or center of
gravity may cause case to fall.
 Roll unit to rear of skid. Roll down ramp and off skid.

6
INSTALLATION, CONTINUED: POSITIONING & ALIGNING CASE / ADJUSTING LEVELERS
3. Position & Align Alongside Other Cases
 Before adjusting levelers, make certain that the case is in proper position and, if required, aligned with
adjoining case(s).
 This may require the repositioning of the case you are installing or the already positioned case(s).
4. Adjusting Levelers
 Important! After case is in proper position, levelers must then be LOWERED to floor.
 Adjust levelers so the case is level and plumb.
 You may need to remove front and/or rear toe-kick to access levelers.
 Use adjustable wrench to adjust leveler.
 Depending upon case weight it may be necessary to use a pry bar to accomplish this task.
 Do not use pry bar on toe-kick as it may buckle.
 Do not use pry bar on end panel as it may chip.
 Use pry bar ONLY on base frame to avoid damaging case.
 See illustrations below.
Pry Bar
Base Frame
Adjustable
Wrench
Leveler

7
INSTALLATION, CONTINUED: OPTIONAL SECURITY COVER INSTRUCTIONS
5. Optional Security Cover Instructions
Caution! Security Cover MUST Be Placed On
OUTSIDE of Acrylic Air Deflector and INSIDE
Lower Security Bracket To Fit Properly.
> Steps A, B and C correspond to this sheet’s
illustrations A, B and C. Follow these step-by-step
instructions for proper security cover placement.
A. Firmly hold security cover handles, and place the
bottom of the security cover on the OUTSIDE of
the acrylic air deflector and INSIDE of lower
security bracket.
B. Lean upper edge of security cover against upper
bracket retainer (shown with hidden lines in
illustration ”B” on this sheet).
C. Check that the lock properly rotates its locking
mechanism into support angle slot (at upper
area).
> When removing security cover from case, store in
safe location away from foot traffic.
> Manufacturing note: if your case DOES NOT HAVE
the hardware shown on this sheet for proper
placement of security cover, contact Structural
Concepts Corporation Technical Service. Toll-free
number is listed on the last page of this document.
Note: Illustrations Shown May Not
Exactly Reflect Every Feature or
Option of Your Particular Case.
Caution! Security Cover
MUST Be Placed On
OUTSIDE of Acrylic Air
Deflector and INSIDE
Lower Security Bracket
Support
Angle Slot
Security
Cover
Handles
Lock
Lower Security
Bracket
A
Acrylic Air
Deflector
B
C
Upper Bracket
Retainer

8
INSTALLATION, CONTINUED: SYNCHRONOUS DEFROST CONNECTION (OPTIONAL)
6. Synchronous Defrost Connection (Optional)
 Adjoined cases MUST HAVE its synchronous defrost plugs connected.
 See wiring diagram accompanying case.
Attention!
Sample Case Adjoinment / Case Front View
Primary
Case
(At Left)
Field Access
Box (Typ.)
Secondary
Case
(At Center)
Secondary
Case
(At Right)
Note:“Daisy-Chain” Synchronous Wiring Must Route To Primary Case (At Left)
 Adjoined cases have
synchronous defrosts.
 Synchronous Defrost
Plugs Must Be Connected
At Rear of Electrical Box
During Case Adjoinment.
 See Your Case’s Wiring
Diagram For Instructions.
Rear Of
Electrical
Box (Typ.)
Sample
Synchronous
Defrost Plug (Typ.)
“Daisy-Chain”
Wire (Typ.)
SCC Internal Note: Any Changes To This Sheet
Must Also Be Made To SCC P/N 20-61248.

9
INSTALLATION, CONTINUED: ADJOINMENT INSTRUCTIONS
7. Overview / Silicone and Buty Application
Sealant Overview:
 Warranty is void if improper sealant is used.
 Sealing tub prevents air from escaping through seams
between cases (causing condensation problems and
reducing refrigeration efficiency).
 Sealing also prevents water from seeping between
cases to the floor.
Silicone and Butyl Application:
 Form (1) INNER sanitation bead AND (1) refrigeration
bead BEFORE case is adjoined (as shown).
 Then, AFTER case is adjoined (and bolted), form (1)
OUTER sanitation bead (as shown) into any cavities
or gaps that may remain along outer adjoinment areas
where butyl has ALREADY been applied.
 Also place a thick bead of caulk around drain.
8. Bolting Adjoined Units
 Bolt holes are at various locations (depending upon
model). Model illustrated MAY NOT exactly reflect
your particular unit but will likely be similar in layout.
 Use appropriately sized nuts and bolts for each hole.
 #1 hole is accessible at honeycomb (slight
adjustment or removal of honeycomb air diffuser
may be necessary for attachment of bolt).
 #2 hole is accessible near rear plenum.
1
9
7/8
5/6
4
Deck
Refrigeration
Butyl Bead
Refrigeration Butyl Bead
 #3 holes are accessible after removing decking.
 #4-6 holes are accessible after removing front panel.
 #7-9 holes are accessible after removing rear panel.
>> Be sure to reattach components to case after the
adjoinment process is complete.
2
Deck
3
Note: Model B4732 (Unit Shown)
May Not Exactly Reflect Every
Feature or Option of Your
Particular Case.
Inner Silicone
Sanitation
Bead
Inner
Silicone
Sanitation
Bead
Outer
Silicone
Sanitation
Bead
Silicone (best
for visible
areas)
Butyl (best
for non-visible
Outer
Silicone
Sanitation
Bead
Note: Any changes to this document
must also be made do P/N 20-76683
Inner Silicone
Sanitation Bead Refrigeration
Butyl Bead
Outer Silicone
Sanitation Bead

10
FRONT GRILLE REMOVAL / CONDENSER PACKAGE / OVERFLOW PAN / MAIN POWER SWITCH
1. Removable Front Grille
 Front grille can be removed/replaced via thumbscrew
and magnet removal method (shown top-right) OR slot
and hook method (shown lower-right).
2. Check That Overflow Condensate Pan is
Properly Connected To Outlet
 Caution! Condensate pan can come unplugged
from its electrical outlet during shipment!
 If case runs without proper connection, water will
overflow pan and drain onto floor causing damage!
 Before turning case on, check that power cord from
condensate pan is properly plugged in.
 See TROUBLESHOOTING section in operating
manual for additional information.
3. Sliding Condenser Package Out From
Underside Of Case
 At shipment, removal of compressor pan shipment
screws may be necessary to access condenser
package. See illustration below-left.
 Refrigeration assembly base rests on plastic
glides.
 Slide condenser package out from under case.
4. Turning On Power To Case
 Plug in power cord.
 Main power switch may be turned on by reaching
through front grille; however, removal of front
grille will allow unhindered access.
 Main power switch is located on main ballast
box, below controller. See illustration at right.
Compressor Pan
Shipment Screw
Below View Shows Condenser Package Slid Out From Under Case.
Note: Illustration Shown May Not Reflect Every Feature
Or Option of Your Particular Case.
Thumbscrew
Location
Thumbscrew
Location
Magnet Magnet
Main Power
Switch
Carel®
Thermostat
Condenser
Coil
Thumbscrews
Front
Panel
Front
Panel
Slots (Typ.)
Hooks
Thumbscrew Controlled Front Panel
Shown In Above Illustration
Front Panel With Slots and Hooks
Shown In Above Illustration