Structural Concepts Oasis B824TM, Oasis B424TM.4857, Oasis B424TM, Oasis B424TM.4489 Installation And Operating Manual

READ AND SAVE THESE INSTRUCTIONS

INSTALLATION AND

OPERATING MANUAL

PN 54298

IN AISLE SELF-SERVICE REFRIGERATED CASES WITH TOP MOUNT CONDENSER PACKAGE

MODEL B824TM Shown

(With Optional Upper Lights)

MODEL B424TM Shown

(With Optional Night Air Curtain)

Model B424TM……………………………………...…..... 47 1/4”L* x 25”D x 84 3/4”H~

Model B424TM.4489……………...……………….…….. 47 1/4”L* x 25”D x 84 3/4”H~
Model B424TM.4857……………...……………….……...47 1/4”L* x 25”D x 84 3/4”H~
Model B824TM……………………...……………….…….92 1/4”L* x 25”D x 84 3/4”H~

*Includes End Panels
~ Units With Levelers Extended 1 5/8” Below Base Frame To Attain Listed Height

888 E. Porter Road · Muskegon, MI 49441 Phone: [phone] Fax: [phone] www.structuralconcepts.com

I:\Oper Manuals\Oasis\B424TM_4489_4857_B824TM_54298.pub

Rev E Date: 3.25.2015

TABLE OF CONTENTS

OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS ...……….....…...……….

INSTALLERS: FOLLOW THESE INSTRUCTIONS! ………….………………………………………..…..
POSITIONING CASE / SHIMMING SUPPORT RAILS / ADJUSTING LEVELERS ………………..…...
CASE STARTUP & REFRIGERATION PACKAGE ACCESS - MODELS B424TM, B424TM.4489 &

B424TM.4857 ...…………………………………………………………………………………...…...
CASE STARTUP & REFRIGERATION PACKAGE ACCESS - MODEL B824TM ONLY …………..….
CASE STARTUP & REFRIGERATION ASSEMBLY ACCESS - EVAP. COIL FAN / TXV VALVE ...…

HONEYCOMB AIR DIFFUSER ACCESS / REMOVAL / INSTALLATION .……………...…………..….
LIGHT FIXTURES (INCLUDING OPTIONAL LIGHTS IN HEADER) ..………………………………..….
CONDENSATE PUMP AND PAN ACCESS …..………………………………………………………..…..
OPTIONAL NIGHT AIR CURTAIN OPERATING INSTRUCTIONS ……………………………………...
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) ……....

PREVENTIVE MAINTENANCE (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS

ONLY) …....................................................................................................................................

TROUBLESHOOTING (TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY) …..…..
TROUBLESHOOTING - CONDENSING SYSTEM (TO BE PERFORMED BY TRAINED SERVICE
PROVIDERS ONLY) …..……………………………………………………………………………..
TROUBLESHOOTING - EVAPORATOR SYSTEM (TO BE PERFORMED BY TRAINED SERVICE

PROVIDERS ONLY) …..............................................................................................................

SERIAL LABEL LOCATION & INFORMATION LISTED / TECH INFO & SERVICE …..…………...…..

CAREL® CONTROLLER OPERATING INSTRUCTION ………………………………………………......

SCC TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION .................

3-4

10
11
12
13
14

15
16
17

18-19

20
21
22

23-25

26

5
6

7
8
9

2

OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS - PAGE 1 of 2

OVERVIEW

 These Structural Concepts Oasis® self-service

cases are designed to merchandise packaged
products at 41 °F (5 °C) or less product temperatures
(unless custom cases with wire rack shelving).

 Cases should be installed and operated according to

this operating manual’s instructions to insure proper
performance. Improper use will void warranty.

TYPE I vs. TYPE II ENVIRONMENTAL CONDITIONS

This unit is designed for the display of products in
ambient store conditions where temperature and
humidity are maintained within a specific range.

 Type I display refrigerators are intended for use in an

area where environmental conditions are controlled
and maintained so that the ambient temperature does
not exceed 75 °F (24 °C) and 55% maximum humidity.

 Type II display refrigerators are intended for use in an

area where environmental conditions are controlled

This equipment MUST be installed in compliance with

all applicable NEC, federal, state and local

ATTENTION

CONTRACTORS

and maintained so that the ambient temperature does not
exceed 80 °F (27 °C) and 60% maximum humidity.

 If unsure if your unit is Type I or II, see tag next to serial

label. See SERIAL LABEL LOCATION &
INFORMATION LISTED / TECH INFO & SERVICE
section in this manual for sample serial labels.

 COMPLIANCE
 Performance issues when in violation of applicable

NEC, federal, state and local electrical and plumbing
codes are not covered by warranty.

 See below compliance guideline.

WARNINGS

 Following are important warnings to prevent injury or

death.

 Please read carefully!
 See next page for PRECAUTIONS.

COMPLIANCE

electrical and plumbing codes.

WARNING

ELECTRICAL

HAZARD

WARNING

KEEP
HANDS
CLEAR

WARNING

HOT

SURFACE

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

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

Condenser Pan / Hot Gas Loop Condensate System is Hot!

Disconnect and allow to cool

before cleaning or removing from case.

3

OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS - PAGE 2 of 2

PRECAUTIONS

 Following are important precautions to prevent damage to unit or merchandise.
 Please read carefully!
 See previous page for specifics on OVERVIEW, TYPE I AND TYP II ENVIRONMENTAL CONDITIONS,

COMPLIANCE and WARNINGS.

CAUTION

CAUTION

Fluorescent lamps have been treated to resist breakage

and must be replaced with similarly treated lamps.

CAUTION

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 covered

by warranty.

 End panels must be 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).

WIRING DIAGRAM FORMAT & LOCATION

 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.

4

INSTALLERS: FOLLOW THESE INSRUCTIONS

1. Remove Shipping Brackets Attached to Skid

 Remove screws holding Case Shipping Brackets to skid.
 Remove Case Shipping Brackets from Skid.
 See illustration at right. Note: Shipping Brackets will vary

in size, shape, material and location depending upon case
type and model.

2. Remove Unit From Skid

 While supporting case, carefully slide case off from skid at

either left or right side of case (NOT at case rear or front).

 See illustration at mid-right for method.
 Remove Shipping Support Board
 Place into proper position.

3. Attach Condensate Pan to Unit

 Condensate pump pan is shipped separately from case.
 After case is in position, plug cord into electrical box at

underside of case, hook condensate hose to pump nozzle.

 Slide into place (at case underside).
 See illustrations 3A through 3D below.
 Note: Images 3A through 3D are for illustrative purposes

only. Though images may show condensate pan on skid,
case has been removed from skid prior to these steps.

 Caution! Be sure to loop the pump’s electrical cord

through the cord hooks under the case.

SCC P/N 54113

Case
Shipping
Brackets

Carefully Slide

3A

Case Off Skid

Pump Nozzle

Condensate

Pump Pan

Electrical cord from pump (to be
looped through the cord hooks
under the case).

3B

Condensate Pump

Pan Support

Bracket (one at

either side)

I:\Oper Manuals\Specialty\CDR4489.B424TM Skid RemovalSheet\4489.B424TM_Skid_Removal_Sheet_54413.pub

Condensate

Pump Hose

Drain Pipe (to
be positioned

over

condensate

pump pan)

3C

Shipping
Support Board

View of Condensate Pump

Pan (Positioned Properly and

Fully Connected)

Sliding Condensate
Pump Pan under case

Rev B Date: 1.22.2011

3D

5

POSITIONING CASE / SHIMMING SUPPORT RAILS / ADJUSTING LEVELERS

Note: Units shown may not depict an exact representation of your particular unit being installed.

1. Position & Align Case Alongside Other
Cases

 Before adjusting levelers (or shimming frame

support rails), 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).

2. Cases With Frame Support Rails: Shim

 Illustration at top right shows case with frame

support rails.

 Shims will be provided with all cases that

have frame support rails.

 Use shims to level case.
 Note: After case is in position, it must be

sealed to floor to prevent entry or
leakage of liquid or moisture.

3. Cases With Levelers: Adjust Levelers

 After case is in position, adjust case so it is

Frame Support

Rails

level and plumb (as shown at right).

 You may need to remove front and/or rear

toe-kick to access levelers.

 Use adjustable wrench (and possibly a pry

bar) to adjust leveler.

 Do not use pry bar on toe-kick as it may

buckle.

 Do not use pry bar on end panel; it may chip.
 Use pry bar ONLY on base frame to avoid

Frame Support

Rails

damaging case.

 See illustration and photos at lower right.

Pry Bar

6

Adjustable

Wrench

Leveler

Base

Frame

Toe-Kick

CASE STARTUP & REFRIGERATION PKG. ACCESS - MODELS B424TM, B424TM.4489 & B424TM.4857

Electrical and Control Access

 Main power cord and switch are accessible from

the top front right hand side of header assembly.

 Thermostat control settings / refrigeration service

ports / evaporator pan are also accessible from top.

 Illustration below provides layout of components.

Condensate Pan Access

Warning! Disconnect power before providing
maintenance and service to unit.

 Condensate pan is accessible from the top of the

unit.

 Unplug the evaporator pan from its outlet.
 Remove screws holding the condensate pan foot to

the compressor pan (see illustration below).

Compressor

Electrical Box

 Caution! To avoid injury, check temperature of

pan prior to handling condensate pan.

 If condensate pan must be removed from unit

(to properly clean), remove carefully by lifting
condensate pan up and off base.

 Empty condensate pan contents into suitable

container.

 See PREVENTIVE MAINTENANCE (TO BE

PERFORMED BY TRAINED SERVICE
PROVIDERS) section in this manual for

cleaning specifics.

 When done servicing or cleaning, return and

reconnect in reverse order it was removed.

 Note: See next page for Model B824TM

refrigeration package layout & access.

Ballast Box /

Contactor / Terminal

Condensate Pan

and Removal

Compressor Receiver Receiver Sight Glass

Screws

Strip / Thermostat

Controller /

Main Power Switch

Condenser

Coil

Condenser

Coil Fans

--- Case Front ---

7

Thermostat

Controller

Main Power

Switch

CASE STARTUP & REFRIGERATION PACKAGE ACCESS - MODEL B824TM ONLY

Electrical and Control Access

 Main power cord and switch are accessible from the

top front right hand side of header assembly.

 Thermostat control settings / refrigeration service

ports / evaporator pan are also accessible from top.

 Illustration below provides layout of components.

Hot Gas Loop Condensate Pan (and Electric Coil
Overflow Pan) Access

Warning! Turn off Main Power Switch Before
Providing Maintenance or Service to Unit.

 Both hot loop condensate pan and electric coil over-

flow pan is accessible from top of unit.

 Caution! Before accessing pans, turn main

power off and allow to cool!

Electrical Box

For Overflow

Unit

Drain (From Hot

Gas Condensate

Coils and Pan

Hot Gas

Condensate

Coils and Pan

 To avoid injury, check temperature of pans

prior to accessing.

 See PREVENTIVE MAINTENANCE (TO BE

PERFORMED BY TRAINED SERVICE
PROVIDERS) section in this manual for

cleaning specifics.

 When done servicing or cleaning, turn main

power switch back on.

 Note: See previous page for other models’

refrigeration package layout & access
instructions.

Accumulator

Electrical

Box

Main Power

Switch

Thermostat

Controller

Condenser

Coil

Condenser

Coil Fans

Receiver

Filter Dryer

--- Case Front ---

8

Sight Glass

Scroll

Compressor

Ballast Box /

Contactor / Terminal

Strip / Thermostat

Controller / Main

Power Switch