Structural Concepts Oasis Mobile Series User manual

Rev H Date: 6.22.2011
PN 99337
READ AND SAVE THESE INSTRUCTIONS
Model MP4048RSS.2447B
Model CDR4625
Model CDR4625A
MULTI-PURPOSE SELF-SERVICE REFRIGERATED MERCHANDISER
INSTALLATION &
OPERATING MANUAL
M O B I L E S E R I E S
I:\Oper Manuals - PUB\CDR\MP4048RSS.2447B_4625_4625A_99337.pub
888 E. Porter Road · Muskegon, MI 49441 Phone: [phone] Fax: [phone] www.structuralconcepts.com
Model MP4048RSS.2447B
[Self-Contained Unit Shown Above]
Model CDR4625A
[Remote Unit Shown Above]
Model CDR4625A
[Self-Contained Unit Shown At Right]

2
TABLE OF CONTENTS
OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING …...………..
INSTALLATION ……………………………………………………………………………………………….
START-UP AND OPERATION [SELF-CONTAINED vs. REMOTE UNITS] .…………………………..
REFRIGERATION FUNDAMENTALS [FOR TRAINED SERVICE PROVIDERS ONLY] …….……...
MAINTENANCE: DECK PAN / FLUORESCENT LIGHTS / LED LIGHTS …..………………………...
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 [BY TRAINED SERVICE PROVIDERS ONLY] - CONDENSING SYSTEM ...
TROUBLESHOOTING [BY TRAINED SERVICE PROVIDERS ONLY] - EVAPORATOR SYSTEM ..
PREVENTIVE MAINTENANCE [TO BE PERFORMED BY TRAINED SERVICE PROVIDERS
ONLY] …………………………………………………………………………………………………………..
MAINTENANCE FUNDAMENTALS - HONEYCOMB AIR DIFFUSERS [FOR TRAINED SERVICE
PROVIDERS ONLY] …………………………………………………………………………………………
SERIAL LABEL LOCATION & INFORMATION LISTED / TECH INFO & SERVICE ...……………….
ILLUSTRATED PARTS BREAKDOWN ………….………………………………………..……………...
PARTS LIST ………………………………………………………………………………………………….
CAREL® CONTROLLER INFORMATION ………………………………………………………………..
TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION …..….………..
3-4
5
6
7
8
9
10
11
12-14
15
16
17
18
19
20
21
22-24
25

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OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING - PAGE 1 of 2
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.
NSF® TYPE
This unit is designed for the display of products in ambient
store conditions where temperatures and humidity are
maintained within a specific range.
 For NSF® Type 1 Conditions (most cases): ambient
conditions are to be at 55% maximum humidity and
maximum temperatures of 75 °F [24 °C].
 For NSF® Type 2 Conditions: ambient conditions are
to be at 60% maximum humidity and maximum
temperatures of 80 °F [27 °C].
 If unsure if unit is NSF® Type 1 or 2, see tag next to
serial label. See SERIAL LABEL LOCATION &
INFORMATION LISTED / TECH INFO & SERVICE
section in this manual for sample serial labels).
COMPLIANCE
 Performance issues when in violation of applicable
NEC, federal, state and local electrical and plumbing
codes are not covered by warranty.
 See below compliance guideline.
WARNINGS
 This page contains important warnings to prevent
injury or death.
 Please read carefully!
PRECAUTIONS and WIRING DIAGRAMS
 See next page for PRECAUTIONS and WIRING
DIAGRAM information.
WARNING
Hazardous moving parts. Do not operate unit with covers removed.
Fan blades may be exposed when deck panel is removed.
Disconnect power before removing deck panel.
WARNING
Risk of electric shock. Disconnect power before servicing unit.
CAUTION! More than one source of electrical supply is
employed with units that have separate circuits.
Disconnect ALL ELECTRICAL SOURCES before servicing.
WARNING
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
COMPLIANCE
This equipment MUST be installed in compliance with
all applicable NEC, federal, state and local
electrical and plumbing codes.

4
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.
CAUTION
CAUTION
If N.E.C. (National Electric Code) or your local code
requires GFCI (Ground Fault Circuit Interrupter) protection,
the use of a GFCI breaker is strongly recommended.
CAUTION
Fluorescent lamps have been treated to resist breakage
and must be replaced with similarly treated lamps.
CAUTION! ADVERSE CONDITIONS / SPACING ISSUES
 Performance issues caused by adverse conditions are NOT covered
by warranty.
 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 will increase noise level.
Whisper Cool compressor blanket or remote unit may resolve noise
level issues.
 Keep at least 8-inch clearance above unit for air discharge
(self-contained units only).
CAUTION
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! CHECK EVAPORATOR PAN POSITION AND PLUG
Water on flooring can cause extensive damage!
Before powering up unit, check the following:
 Evaporator pan MUST BE positioned directly under condensate drain.
 Evaporator pan plug MUST BE securely plugged into receptacle.
OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING - PAGE 2 of 2
CAUTION
LED lamps reflect specific size, shape and overall design.
Any replacements must meet factory specifications.
CAUTION

5
INSTALLATION
3. Removing Case from Skid
A. Place ramp up against skid (to allow case to smoothly slide off from skid).
B. Be certain to maintain support of case at all times or center of gravity may cause case to fall.
C. Slide unit to rear of skid. Slide down ramp and off from skid.
 Note:Illustration below reflects general outline of sample case and may not reflect your particular
model or options chosen).
Carefully Slide Skid
Out From Under Unit
Support
case while
removing
from skid.
Ramp
Case Shipping
Brackets. (4)
1. Removing Case Shipping Brackets That Are
Attached To Skid
 Disconnect screws holding Case Shipping
Brackets to skid.
 Remove Case Shipping Brackets from Skid.
 See illustration #4.
2. Caster Locking Operation
 To lock casters push down on lever. To
unlock, pull up the lever all the way.
Locked
Unlocked

START-UP AND OPERATION [SELF-CONTAINED vs. REMOTE UNITS]
Merchandiser Start-Up [Self-Contained Units]
 Plug cord into a certified electrical outlet with ground.
 Turn on the main power. Switch is on the rear left
hand side of base. Supply power will start
evaporator coil fans, light and the compressor motor.
 From the front of the case, raise the deck pans and
check to see that the coil fans are all functioning
properly.
 Lights will start with supply power. First time lighting
may require a short warm up period for the bulbs.
Slightly dim or a flickering of new bulbs is normal.
6
OFF
ON
Rocker Switch
Main
Power
Switch
Deck
Pans
LED Driver
Electrical
Box
Electrical
Box For
Probes
Heat Tape J-Box
Light Switch Box

7
REFRIGERATION FUNDAMENTALS [FOR TRAINED SERVICE PROVIDERS ONLY]
Note: The Following Information is for Self-Contained Units Only
Temperature Control Access
 Assembly or disassembly and servicing to be accomplished by licensed electrical / refrigeration
contractor.
 Temperature control module is located inside the electrical box.
 Electrical box is on the back of the case on the right hand side.
 Loosen screws securing electrical box cover and rotate clear of locking flange.
 If a temperature setting change is required, refer to temperature control access in CAREL®
CONTROLLER INFORMATION section of manual.
Refrigeration Package: Access, Connections & Servicing
 Assembly or disassembly and servicing to be accomplished by licensed refrigeration
contractor.
 Servicing refrigerant is accomplished from the rear of the case.
 Service connections are located to the right, on the case base assembly.
 Refrigerant lines are flexible to facilitate rear access maintenance to condenser.
 Plastic glides are mounted to the unit base to assist in sliding the condenser out for access.
Condenser
Evaporator
Pan
Temperature Control
Light Ballast
Electrical
Box
Honeycomb
Air Diffuser
 Note: Condenser unit does not slide to the front.
 Remove rear grille and set grille aside.
 Withdraw unit using pull flanges on both sides of
condenser frame.
Evaporator Pan Access and Removal
Warning: Evaporator pan may be hot. Allow the
Evaporator Pan to cool approximately 30-minutes
before cleaning.
 Turn off power. Disconnect case from power source.
 Remove front grille.
 Remove Evaporator Pan Mounting Screws.
 Insure evaporator pan is unplugged at the 110V
receptacle inside base.
 Withdraw evaporator pan.
 Empty evaporator pan contents into a suitable
container.
 Thoroughly clean evaporator pan with de-scaling
solution, such as CLR®. Rinse thoroughly. DO NOT
submerse in water.
 Use clean towel dipped in soap and water solution to
wipe down all fans, motor, refrigeration lines, cords,
knobs, sight glass, connectors and all other surfaces.
 Wipe dry.
 Reposition Evaporator Pan on Compressor Pan.
 Reattach mounting screws to Evaporator Pan.
 Reconnect Evaporator Pan electrical connections.
 Replace Front Grille.

8
MAINTENANCE: DECK PAN / FLUORESCENT LIGHTS / LED LIGHTS
Deck Pan Removal
 Deck pan is removable for cleaning and ac-
cess to evaporator fans.
 Deck pan lifts up and out of unit.
Fluorescent Light Fixtures
Removal of lamp:
 Rotate lamp (1/4 turn) either direction to dis-
engage (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 the sockets.
 See photos at top right.
Installation of lamp:
 Align pins with slot.
 Insert pins into socket by rotating the bulb 1/4
turn to secure either the (upper or lower)
pined contacts into the sockets.
 Rotate remaining bulb contacts (1/4 turn) into
remaining lamp mounting socket contacts.
 See photos at top right.
LED Style Light Fixtures
Removal of lamp:
 If case is provided with LED lights, they will
rarely require change-out.
 Contact Structural Concepts’ Technical
Service Department for replacement parts
(see the Technical Service section of
operating manual).
Replacement of lamp:
 To replace LED Light Fixture, simply
disconnect the existing LED light from its
brackets and/or self-adhesive tape. Replace.
 Note: LED Light and Plug must be connected
in a specific manner or they will not work.
 Make certain flat edge of plug connects to flat
edge of LED light.
 See illustrations at lower right.
Plug’s Oval
Form
LED’s
Oval
Form
LED Style Light Fixtures

9
GENERAL CLEANING [TO BE PERFORMED BY STORE PERSONNEL]
AREA TO
CLEAN FREQ. INSTRUCTIONS
Case
Exterior Daily Acrylic:Acrylic sneeze guard [and bins] must be cleaned with a mild soap
and water solution and a soft cloth. Caution! Never use ammonia-based
cleaners on acrylic. Incorrect cleaning agents or abrasive cleaning
cloths cause surface to ‘cloud’ over time.
Daily Glass Sneeze Guard:Clean glass sneeze-guard (at top of unit) with a
household or commercial glass cleaner.
Daily Containment Pans:Remove. Submerge in mild soap and water solution
and clean thoroughly with brush. Allow to dry. Return pans to unit.
Weekly to
Monthly Air Filter [With Magnetic Strip] on Rear Grille [Optional]:
 Depending upon environment, it may be necessary to clean filter as often
as weekly. Filter MUST be cleaned at least monthly.
 Remove from case. Submerse in warm, soapy water. Use soft-bristled
brush to remove dust, grease and grime that collects on filter. Rinse
thoroughly. After filter has dried, return to case.
 See REFRIGERATION FUNDAMENTALS section in this manual for
illustrations.
Case
Interior Daily Deck:Decks can be cleaned with a warm soap and water solution. For
stubborn stains/residue, decks can be removed and cleaned with soap and
water solution or submersed in hot, soapy water solution. Rinse thoroughly.
Dry. Return to case.
Weekly Shelf Supports / Air Return Grilles / Decking
 Wipe off shelf supports, air return grilles and decking with moist cloth.
 Shelf supports can be removed for more thorough cleaning.
 Air return grilles can be removed for more thorough cleaning.
 Decking is NOT to be removed by store personnel.
Monthly Condenser Coil:Vacuum or brush grille condenser coil at case front. Use
metal or fiber brush to remove dust and dirt that can collect on condenser
coils. Be careful not to damage the fins on the coil. See INSTALLATION
section in this manual for instructions on side panel removal.

10
TROUBLESHOOTING [TO BE PERFORMED BY STORE PERSONNEL]
CONDITION TROUBLESHOOTING
Case Is Not Level See ALIGNING CASE / FRAME SUPPORT RAIL SHIMMING /
ADJUSTING LEVELERS section in this manual for additional info.
Case Not Lining Up See Installation Section for instructions on properly aligning case
(alongside other cases) and adjusting levelers (or rails).
Water Is On The Floor Call service provider.
Fan Emits Excessive Noise Call service provider.
Case Lights Are Not
Working [LED Lights] Check that light switch is in the on position.
Check that ALL of the light cords and plugs are properly connected. See
MAINTENANCE - LIGHT FIXTURES (LED LIGHT FIXTURES) section in
this manual for specifics.
If case lights still do not come on, call service provider.
Case Lights Are Not
Working [Fluorescent Lights] Check that light switch is in the on position.
Check that ALL of the light cords and plugs are properly connected. See
MAINTENANCE - LIGHT FIXTURES (LED LIGHT FIXTURES) section in
this manual for specifics.
If case lights still do not come on, check that fluorescent lights are not
burned out.
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 / WIRING section in this manual for specifics.
If case is located near front doors, temperature fluctuation can hinder
unit’s ability to maintain temperature.
Check that air filter and condenser coil has been cleaned. See
GENERAL CLEANING [TO BE PERFORMED BY STORE
PERSONNEL] section in this manual for specifics.
If case still is not holding proper temperature, call service provider.

11
GENERAL CLEANING [TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY]
AREA TO CLEAN FREQUENCY INSTRUCTIONS
Case Interior Monthly Evaporator Fan Shroud Area (Under Decking):Caution! Due to
rotating fans in area, turn off case and disconnect plug from
wall outlet before beginning fan shroud (and surrounding tub
area) cleaning! 1) Turn off power. 2) Remove decks from case.
3) Clean fan shroud area (and surrounding tub area) with moist
cloth.
Quarterly Tub & Drain:Caution! Due to rotating fans in area, turn off
case and disconnect plug from wall outlet before beginning
tub & drain cleaning! Vacuum tub under decks. Clean with soap
and water solution. Wipe dry with clean cloth. Keep drain free of
debris to prevent clogging.

12
CONDITION TROUBLESHOOTING
Water Is On The
Floor Caution! Water on flooring can cause much damage! Until cause is determined (and
repaired), following these procedures:
 Use wet-dry vacuum (or mop & bucket) to remove standing water.
 Use ‘catch pans’ for water to drain into. Swap out regularly until case has
completely drained.
Check that the drain trap is free of debris.
Check that the drain hose is correctly positioned over evaporator pan (or floor drain,
for remote units).
Check store conditions. To prevent condensation in NSF® Type 1 environments,
maximum conditions are to be 55% humidity / 75° Fahrenheit. For NSF® Type 2,
maximum conditions are to be 60% humidity / 80° Fahrenheit. See serial label (at
case rear near main power switch) for NSF® Type of your case.
Check evaporator pan float for proper operation (Heat Rod Evaporator System only).
Check that evaporator pan is properly plugged in or connected.
Caution! Evaporator pan may be malfunctioning (Electrical Heat Rod Evaporator sys-
tem). If so, water will overflow pan and seep onto flooring causing damage! Until
evaporator pan is functioning (or is replaced), following these procedures:
 Use wet-dry vacuum (or mop & bucket) to remove standing water.
 Use ‘catch pans’ for water to drain into. Swap out regularly until case has
completely drained.
Caution! Disruption of power can cause water to overflow pan and seep onto
flooring causing damage! Check that power to case is constant. Until power is
restored, following these procedures:
 Use wet-dry vacuum (or mop & bucket) to remove standing water.
 Use ‘catch pans’ for water to drainage. Swap out regularly until evaporation of
case is complete (or until power is restored).
When power to case is restored, evaporator pan should function properly and water
will no longer overflow onto flooring.
Caution! Wicking material may be dirty or worn and need replacement (certain Hot
Gas Evaporator systems only).
 Slide refrigeration system out from under unit.
 After refrigeration system has been carefully slid out from under unit, replace wick-
ing material with new. If wicking material is not available, contact Structural Con-
cepts®. See toll-free number at last page of this operating manual.
TROUBLESHOOTING [TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY] - PAGE 1 of 3

13
CONDITION TROUBLESHOOTING
Fan Emits Excessive
Noise Check that the case is aligned, level and plumb.
Check evaporator fan 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.
Digital Control Display
Is Blank Check that the MAIN power switch is on.
Check the circuit breaker box for tripped circuits.
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 3

14
CONDITION TROUBLESHOOTING
Control Display Is
Flashing See your case’s serial label for your model’s specified settings. See SERIAL
LABEL LOCATION & INFORMATION LISTED / TECH INFO & SERVICE for
label location, etc.
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. See
OVERVIEW AND WARNINGS section in manual for adverse conditions/spacing
issue parameters.
If case is located near front doors, temperature fluctuation can hinder unit’s ability
to maintain temperature. See OVERVIEW AND WARNINGS section in manual
for adverse conditions/spacing issue parameters.
Check that condenser coil has been cleaned.
Check air return grilles for obstructions.
Check sight glass for flashing and/or low charge.
Check Set Point Temperature; it may be adjusted too high.
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.
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.
LED Drivers: Service Technicians Only: Check voltage at LED drivers. If voltage is
entering but not exiting, LED driver may be faulty.
Check that magnetic air filter (attached to rear grille) has been cleaned. See
GENERAL CLEANING [TO BE PERFORMED BY STORE PERSONNEL] section
in operating manual for instructions.
For fluorescent bulbs, check that they are not burnt out. If so, replace.
TROUBLESHOOTING [TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY] - PAGE 3 of 3

15
TROUBLESHOOTING [BY TRAINED SERVICE PROVIDERS ONLY] - CONDENSING SYSTEM
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.
Check to verify that a non-condensable is not in the system.
Check that Liquid Line Drier is not plugged.
Check that there are no close-offs around Condensing Coil.
Check Set Point Temp.; it may be adjusted too high.
Check System Operating Temperatures.
Check that Store Ambient Temperature isn’t above maximum allowed. See
Overview and Warnings Section.
Head Pressure Too
Low
Check that Refrigerant Charge isn’t too low.
Check that Suction Pressure isn’t too low.
Check to verify that Compressor Valves aren’t bad.
CONDITION TROUBLESHOOTING

16
TROUBLESHOOTING [BY TRAINED SERVICE PROVIDERS ONLY] - EVAPORATOR SYSTEM
Low Suction Pressure Check that the Refrigerant doesn’t have a low charge.
Check that Expansion Valve (TXV Valve) isn’t restricted.
Check that Liquid Line or Filter isn’t restricted.
Check that Evaporator Motors are working.
Check that High Superheat doesn’t need adjusting.
Check that the Thermostatic Element charge isn’t depleted.
Check that there is air no seepage of air around Condensing Coil.
Check that the Coil is not iced up.
High Suction Pressure Check that Refrigerant Charge isn’t too high.
Check that Compressor Valves aren’t bad.
Check that the Cooling Load isn’t high.
Check that Superheat Adjustment isn’t low.
Check TXV Bulb Installation
a. Poor thermal contact.
b. Warm location.
Check Compressor: Low capacity means it is undersized for its application.
CONDITION TROUBLESHOOTING

17
PREVENTIVE MAINTENANCE [TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY]
PREVENTIVE
MAINTENANCE FREQ. INSTRUCTIONS
Case Exterior Quarterly Condensing Coil:
 Remove panel to access area by lifting up and off or by screw
removal (depending on case).
 Use air pressure or industrial strength vacuum; clean dust and dirt that
may collect on the Condenser Coil.
 Caution! Airborne dust can contaminating food! Use wet rags to
cover area where air pressure is blowing.
 Warning! Coil fins are sharp. Handle with care!
 Return panel to case.
Quarterly Refrigeration Package/Compressor Area: Caution! Be certain to
disconnect power from case before cleaning Refrigeration Package!
 Warning! Evaporator Pan Is HOT! Disconnect power from case and
allow to cool before cleaning evaporator pan!
 Slide/Roll compressor package out from under case.
 See REFRIGERATION FUNDAMENTALS section for in-depth
instructions on accessing the evaporator pan.
 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.
 Electric heater coil evaporator pans can be removed and cleaned.
 After thoroughly cleaning 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, overflow pan, etc.).
 Slide refrigeration assembly back under case.
 Replace front panel and lower grille via hooks (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.
Case Interior Quarterly Tub Area [Evaporator Coil, Drain, Fans, Brackets]:
Caution! Disconnect power from the case before cleaning tub, coil,
fan, motor and drain area!
 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 MAINTENANCE FUNDAMENTALS -
HONEYCOMB AIR DIFFUSERS [SERVICE TECHNICIANS ONLY]
section of this manual (next page) for cleaning specifics.
WARNING! TURN OFF CASE BEFORE PERFORMING PREVENTIVE MAINTENANCE!

18
MAINTENANCE FUNDAMENTALS - HONEYCOMB AIR DIFFUSERS [TRAINED SERVICE PROVIDERS]
Honeycomb Air Diffuser Removal
See PREVENTIVE MAINTENANCE (TO BE
PERFORMED BY TRAINED SERVICE PROVIDER)
section in this manual for cleaning frequency.
A. Wedge a non-metallic device of suitable strength
(such as a ballpoint pen) between the honeycomb
and the end panel.
Caution! Use care not to dislodge the heating wire
(that prevents condensation on the lamp assembly).
B. Apply pressure to collapse the honeycomb to
allow it to be pulled out of honeycomb retainer.
C. Carefully pry downward and away from the
honeycomb retainer.
A
B C
D
E
F
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 (vs. suction mode).
Honeycomb Air Diffuser Installation
D. Squeeze honeycomb to allow it to fit 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.
Note: For honeycomb air diffusers in other
locations, these same general instructions apply.
Containment
Pans
Evaporator
Fans
Bulb
Deck Pan
Axial Fan
Honeycomb
Air Diffuser

19
SERIAL LABEL LOCATION & INFORMATION LISTED / TECH INFO & SERVICE
Serial Label Location & Information Listed / Technical Information & Service
 Serial labels are located near the electrical access on your case.
 Serial labels contain electrical, temperature & refrigeration information, as well as regulatory
standards to which the case conforms.
 For additional technical information and service, see the TECHNICAL SERVICE page in this
manual for instructions on contacting Structural Concepts’ Technical Service Department.
 See images below for samples of both refrigerated and non-refrigerated serial labels.
----- Sample Serial Label For Refrigerated Case -----
----- Sample Serial Label For Non-Refrigerated Case -----
888 E. Porter Road · Muskegon, MI 49441 Phone: [phone] Fax: [phone] www.structuralconcepts.com
SAMPLE ONLY
SAMPLEONLY
SAMPLE ONLY
SAMPLE ONLY
SAMPLEONLY
SAMPLEONLY

20
ILLUSTRATED PARTS BREAKDOWN [TYPICAL SELF-CONTAINED UNIT]
1
10
7
5
3
17
16
12
9
13
8
2
11
18
14
19
20
21
23
24
26
4
6
Reference:
Electrical Box,
Temperature
Controller &
Ballast
Location [Self-
Contained
Units Only]
25
22
15