Structural Concepts Oasis MI44RF Instrucciones de instalación

P/N 21-34184

READ AND SAVE THESE INSTRUCTIONS

Rev E Date: 1.13.2022

INSTALLATION &

OPERATING MANUAL

Oper Manual\21-34184_QR_MIXXRF_User Manual_Mobile Island Freezer-Refrig Case.pub

M O B I L E S E R I E

SELF-SERVICE MULTI-PURPOSE FREEZER-REFRIGERATED

ISLAND DISPLAY CASES



-











MI48RF

MI44RF

888 E. Porter Road ∙ Muskegon, MI 49441

Phone: 231.798.8888 Fax: 231.798.4960 www.structuralconcepts.com

MI46RF

TABLE OF CONTENTS

OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING / PLUGS .............…..

CASE REMOVAL FROM SKID (LOCKING/UNLOCKING CASTERS) ……………………..………….…..

CASTER LOCKING AND EXTERIOR PANEL ATTACHMENT (AFTER REMOVAL FROM SKID) ..…..

CASE START-UP VIA MAIN POWER SWITCH / TEMPERATURE CONTROL 3-WAY SWITCH ...…..

HONEYCOMB AIR DIFFUSER ………………………………………………..……………………………….

EVAPORATOR SECTION ACCESS: RACK WIRE REMOVAL ………………………………...................

EVAPORATOR SECTION ACCESS, CONTINUED: DECK PAN REMOVAL / THERMOMETER ….….

EVAPORATOR SECTION ACCESS, CONTINUED: EVAPORATOR AREA LAYOUT ………………….

LOAD LIMIT (LOAD LINE) GUIDELINES / CASE FRONT & REAR DESIGNATIONS .………………….

PRODUCT AND SIGNAGE PLACEMENT GUIDELINES …………………………………………………..

CONDENSER PACKAGE SLIDE-OUT ………………….…………………………………………………….

CONDENSER PACKAGE EXPLODED PICTORIAL - MODEL MI44RF.7448 .…………………………...

CONDENSER PACKAGE EXPLODED PICTORIAL - MODEL MI46RF.7448 AND MI48RF.7448 ..…...

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

CLEANING SCHEDULE …………….………………….……………………………….…………………….

TROUBLESHOOTING (GENERAL) ..………………….………………………………….……….………….

TROUBLESHOOTING - CONDENSING SYSTEM (QUALIFIED SERVICE TECHNICIANS) ………….

TROUBLESHOOTING - EVAPORATOR SYSTEM (QUALIFIED SERVICE TECHNICIANS) ………….

PREVENTIVE MAINTENANCE (PERFORMED BY TRAINED SERVICE PROVIDER) ………………...

CAREL® CONTROLLER: Programming The Instrument …….……………………………………………..

CAREL® CONTROLLER: User Interface - Display / Summary Table of Alarm and Signals: Display,

Buzzer and Relay ..……………………………………………………………………………….…….

CAREL® CONTROLLER: Summary Table of Operating Parameters ……………………………..……...

CAREL® CONTROLLER: Changing “Raw Meat” and “Produce/Deli” Setpoints Using The Thermostat

Controller ...…………………………………………….……………………………………...………...

TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION ...……………..…

3-4

19-20

This Operating Manual Is Applicable To The Following Models*

MI44RF, MI46RF, MI48RF, MI44RF.7448, MI46RF.7448 and MI48RF.7448

*This Operating Manual May Also Be Applicable To Models Not Listed Herein.

OVERVIEW

 These Structural Concepts cases are designed to

merchandise product at 3 separate temperature settings:

1. Refrigerated packaged PRODUCE/DELI products at

40 °F (4.5 °C) or less product temperatures.

2. Refrigerated packaged RAW MEAT products at 38 °F

(3.3 °C) or less product temperatures.

3. FROZEN packaged products at 0 °F (-18 °C) or less

product temperatures.

 These cases should be installed and operated according to

the following parameters to insure proper performance.

 See page 7 in operating manual for 3-way switch illustration.

TYPE I 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.

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.



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

OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING / PLUGS - PAGE 1 of 2

COMPLIANCE

This equipment MUST be installed in compliance with

all applicable NEC, federal, state and local

electrical and plumbing codes.

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

 This sheet contains important warnings to prevent injury or

death. Please read carefully!

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.

ATTENTION

CONTRACTORS

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.

OVERVIEW / TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING / PLUGS - PAGE 2 of 2

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.

PRECAUTIONS

 This sheet contains important precautions to prevent

damage to unit or merchandise.

 Please read carefully!

 See previous page for specifics on 

and .

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.

CAUTION! CHECK CONDENSATE PAN POSITION & PLUG

Water on flooring causes damage! Before powering unit, check 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 2 plugs connected.

CAUTION!

DO NOT RELY ON THERMOMETERS OR THERMOSTATS

FOR ACTUAL PRODUCT (FOOD) TEMPERATURES.

 Thermometers and thermostats reflect air temperatures ONLY.

 They do not reflect ACTUAL food temperatures.

 For ACTUAL food temperatures, use a calibrated food thermometer.

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.

CASE REMOVAL FROM SKID (LOCKING/UNLOCKING CASTERS)

Various Types Of

Case Shipping

Brackets



 Remove screws holding shipping brackets to skid.

 Remove shipping brackets from skid.

 See illustrations below. Note: Shipping Brackets will vary in size, shape, material and location depending

upon case type and model.

 

A. Place ramp up against skid (to allow case to smoothly slide off from skid).

B. Maintain support of case at all times or center of gravity may cause case to fall.

C. Unlock Casters. Slide unit to rear of skid. Slide down ramp and off from skid.

Note: See next page for panel attachment instructions.

Support case

while sliding

down ramp.

Ramp

Note: Illustration Shown May

Not Exactly Reflect Every

Feature Or Option Of Your

Particular Model.

CASTER LOCKING AND EXTERIOR PANEL ATTACHMENT (AFTER REMOVAL FROM SKID)



 To lock casters (from the unlocked position), press

down on each RAISED caster lever (as shown in

illustration below). Casters are now locked.

 To unlock casters (from the locked position), press

down on the RAISED caster lever (as shown in

illustration below). Casters are now unlocked.

 See sample caster design at right.



 Attach to case after case has been removed and

properly positioned/located in store.

Rear Intake

Panel

Magnet

(Typ.)

Front Air

Intake Panel

Hook (Typ.) Side

Panel (Typ.)

Casters

Unlocked

Casters

Locked

--- Sample Caster Design ---

 All exterior panels may be removed without

tools.

 Lift exterior panel up and off tabs.

 Separate lower panel from magnets

 See illustrations below.

Note: Illustration Shown May

Not Exactly Reflect Every

Feature Or Option Of Your

Particular Model.

CASE START-UP VIA MAIN POWER SWITCH / TEMPERATURE CONTROL 3-WAY SWITCH

-

 Remove front panel on control side of unit

(see illustration below).

 Turn on main power switch.

 Main power switch will start evaporator coil

fans, and the compressor motor.

-

 Remove front panel on control side of unit to

access temperature control switch.

 The 3-way switch allows unit to merchandise

product at three (3) separate temperature

settings:

A. Refrigerated packaged PRODUCE products

at 41 °F (5 °C) or less product temperatures.

B. Refrigerated packaged MEAT & DAIRY

products at 38 °F (3.3 °C) or less product

temperatures.

C. FROZEN packaged products at 0 °F

(-18 °C) or less product temperatures.

 See enlarged view of switchbox below.

Model MI44RF (Shown) May

Not Exactly Reflect Every

Feature Or Option Of Your

Particular Model.

HONEYCOMB AIR DIFFUSER



 Honeycomb air diffuser is on all models.

 Honeycomb may be removed for cleaning and/or

maintenance.



 Honeycomb is located in discharge air duct.

 To remove the honeycomb from the back panel

assembly, simply squeeze (“pinch”) together and

lift out from housing.

 See 



 section in manual for cleaning

specifics.

 After cleaning, be certain to replace honeycomb

in same position so as not to disrupt airflow.

Honeycomb Air

Diffuser Shown

Removed From Case

Honeycomb Air

Diffuser Shown

Intact Within Case

Note: Illustration Shown May

Not Exactly Reflect Every

Feature Or Option Of Your

Particular Model.

Rack Wire

EVAPORATOR SECTION ACCESS: RACK WIRE REMOVAL







 Rack wire allows product to be raised from deck surface.

 To remove, simply lift rack wire up and out from case. Use caution

to avoid scraping glass or acrylic surfaces within merchandiser.

 Place in secure location away from foot traffic.

 See below illustration.

Rack Wire

Note: Illustration Shown May

Not Exactly Reflect Every

Feature Or Option Of Your

Particular Model.

EVAPORATOR SECTION ACCESS, CONTINUED: DECK PAN REMOVAL / THERMOMETER



 Thermometer is located on air return duct (as illustrated

below).

 Thermometer reflects internal air temperature only (not

actual food temperature).

 Use probe thermometers to determine actual product

temperatures.

Caution! Turn Off Power To Unit Before Removing

Deck Pans! Rotating Fans Can Cause Severe Injury!





 Deck pans consist of the pan and finger hole

inserts.

 To remove, use finger hole to grasp and lift pans

UP AND OUT of case.

 See below illustration.

Deck Pan

Finger Hole

Deck Pan

Thermometer

Note: Illustration Shown May

Not Exactly Reflect Every

Feature Or Option Of Your

Particular Model.

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