Structural Concepts Oasis CO2739R Installation And Operating Manual

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INSTALLATION AND

M O B I L E S E R I E S

SELF-CONTAINED REFRIGERATED SERVICE/SELF-SERVICE MODEL CO2739R

OPERATING MANUAL

PN 99399

I:\Oper Manuals\Oasis\CO27[L]R_99399.pub

Model CO2739R……………...27 1/2”L* x 39”H x 33”D

*Includes end panels.

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

Rev D Date: 4.10.2012

TABLE OF CONTENTS

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

START-UP AND OPERATION ….…………...…...…..…………………………….…………….…………
MAINTENANCE FUNDAMENTALS: FRONT PANEL / FRONT GRILLE / LIGHT FIXTURE ..……….…

MAINTENANCE FUNDAMENTALS, CONTINUED: HONEYCOMB AIR DIFFUSERS ………………….
ELECTRICAL & REFRIGERATION FUNDAMENTALS ………………………...……………….… ……….
REFRIGERATION FUNDAMENTALS ………………………………………………………………………..
SERIAL LABEL LOCATION & INFORMATION LISTED / TECH INFO & SERVICE ……………...…….
TROUBLESHOOTING ……...………………………………………………………………………...………..
ILLISTRATED PARTS BREAKDOWN …………...……………...……………………………………………
PARTS LIST ……….……….……………………………………..……………………………………...………

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

CAREL® TEMPERATURE CONTROLLER INFORMATION ……….…………………….………………..
JOHNSON CONTROL® - MR3CCUHV A

larm and Fault Codes ……….…………….…………...……

JOHNSON CONTROL® - MR3CCUHV Programming Control Module ……….………..…………..……

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

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

OVERVIEW

 These Structural Concepts merchandisers are

designed to merchandise pre-chilled packaged
products at 41 °F [5 °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.

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 Type 1 Conditions (most cases): ambient

conditions are to be at 55% maximum humidity and
maximum temperatures of 75 °F [24 °C].

 For Type 2 Conditions: ambient conditions are to be at

60% maximum humidity and maximum temperatures
of 80 °F [27 °C].

This equipment MUST be installed in compliance with

all applicable NEC, federal, state and local

electrical and plumbing codes.

 If unsure if unit is Type 1 or Type 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 sheet contains important warnings to prevent

injury or death.

 Please read carefully!

PRECAUTIONS and WIRING DIAGRAMS

 See next page for PRECAUTIONS and WIRING

DIAGRAM information.

COMPLIANCE

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 is Hot!

Disconnect and allow to cool

before cleaning or removing from case.

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

PRECAUTIONS

 This sheet contains 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! LAMP REPLACEMENT GUIDELINES

LED lamps reflect specific size, shape and overall design.

CAUTION

Any replacements must meet factory specifications.

Fluorescent lamps have been treated to resist breakage and

must be replaced with similarly treated lamps.

CAUTION! GFCI BREAKER USE RECOMMENDATION

If N.E.C. (National Electric Code) or your local code

requires GFCI (Ground Fault Circuit Interrupter) protection,

the use of a GFCI breaker

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.

is strongly recommended.

CAUTION

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! 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.

 Keep at least 8-inch clearance above unit for air discharge

(self-contained units only).

CAUTION! CHECK EVAPORATOR PAN POSITION AND PLUG

Water on flooring can cause extensive damage!

 Evaporator pan MUST BE positioned directly under condensate drain.
 Evaporator pan plug MUST BE securely plugged into receptacle.

Before powering up unit, check the following:

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START-UP AND OPERATION

Merchandiser Start-Up

 Do not use an extension cord with this

appliance.

 Do not operate this equipment with a damaged

cord, plug or outlet.

 Insure the main power switch is off.
 Plug cord into a certified 120V electrical outlet

with ground.

 Turn main power on.

Remove upper front panel (See maintenance



for panel removal). Switch is on the right
side of case.

Coil fan should turn on.



From inside of the case, check for discharge



air from front baffle, to confirm that the fans
are functioning properly.
When the case is in a start up mode or has



been idle for a long period of time, the unit
will require 75 minutes in order to pull-down
temperature.

The lights should come on at the same time.



First time lighting may require a short warm



up period for the bulbs. Slightly dim or a
flickering of new bulbs is normal.

It is recommended that the self contained



refrigerated cases maintain front and rear
airflow clearance of approximately six inches.

 Obstruction or restriction of air can void

warranty.
The interior case temperature reaches 2 °C to



5 °C / 35 °F to 41 °F.



Note: The case temperature is set at the
factory, as determined by the case size.
The temperature is controlled by a
thermostat. If a temperature setting change
is required, refer to the instructions for the
Temperature Control Programming operating
section of this manual.

 Note: Set point should be 4.5 °C / 40 °F. This

will maintain the product temperature range.
Settings lower than 4.5 °C / 40 °F can cause
food items to freeze

.

Main Power Switch

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MAINTENANCE FUNDAMENTALS: FRONT PANEL / FRONT GRILLE / LIGHT FIXTURE

1. Removing the Front Panel

 Lifting the panel from lower edge upward

approximately a half inch into a channel lip,
disengages the support taps on the lower edges.

 Pivot out lower edge approximately one inch and

Channel Lip

Upper Front Panel

lower panel to remove.

2. Removing the Front Grille

 Lifting the grille upward approximately a half inch

disengages a top support flange and the support
taps on the back lower side of the grille from the

Support Tabs

frame .

 Pivot out lower edge and remove grille.

3. Light Fixture

Removal of lamp:

 Rotate lamp (1/4 turn) either direction to

disengage (upper or lower) pins/contacts from
lamp mounting sockets.

 Remove bulb buy applying even pressure from the

back side at the bulb ends and pulling the
remaining contact from the sockets.

Support Flange

Installation of lamp:

 Align pins with slot.
 Insert pins into socket by rotating the bulb 1/4 turn

Support Tabs

to secure either the (upper or lower) pined
contacts into the sockets.

 Rotate the remaining bulb contacts (1/4 turn) into

the remaining lamp mounting socket contacts.

Front Grille

Support Rest

Light Socket

Lamp Pins

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Light Fixture

MAINTENANCE FUNDAMENTALS, CONTINUED: HONEYCOMB AIR DIFFUSERS

Preventive maintenance should be performed
every 30 days unless conditions warrant a more
frequent replacement cycle.

Honeycomb Air Diffuser Removal

Honeycomb is located in discharge air duct.

A. Wedge a non-metallic device of suitable strength (such
as a ballpoint pen) between the honeycomb and the end
panel.
Caution
prevents condensation on the lamp assembly).
B. Apply pressure to collapse the honeycomb to allow it to
be pulled out of honeycomb retainer.
C. Pry downward and 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 (vs. suction mode).

Honeycomb Air Diffuser Installation

D. Squeeze honeycomb to allow it to fit into honeycomb
retainer.
E. Carefully slide honeycomb into place.
F. Adjust honeycomb so that it fits flat
It must not be wavy or out of position.

Note: For honeycomb air diffusers in other locations,
these same general instructions apply.

! Use care not to dislodge the heating wire (that

against retainer.

Honeycomb
Air Diffuser

Note: Model features and options may vary.

A

F

E

B

D

C

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