READ AND SAVE THESE INSTRUCTIONS
INSTALLATION &
M O B I L E S E R I E S
MULTI-PURPOSE SELF-SERVICE REFRIGERATED MERCHANDISER
OPERATING MANUAL
PN 99509
MOT9648RSS.3742A
MOT4848RSS.3742
888 E. Porter Road · Muskegon, MI 49441 Phone: 231.798.8888 Fax: 231.798.4960 www.structuralconcepts.com
I:\Oper Manuals - PUB\Oasis\MOT(L)48RSS_3742,A,B,4223_Manual_99509.pub
Model MOT4848RSS.3742 50”L* x 45”D x 48 1/2”H~
Model MOT9648RSS.3742A 98”L* x 45”D x 48 1/2”H~
Model MOT7248RSS.3742B 75 1/8”L* x 45”D x 48 1/2”H~
Model MOT9648RSS.4223 98”L* x 45”D x 48 1/2”H~
* Includes end panels.
~ Case height is approx. 59 5/8” from floor to top of sign.
Rev K Date: 11.19.2011
TABLE OF CONTENTS
OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING ……........…..
CASE REMOVAL FROM SKID (LEVELERS OR CASTERS) …………………………..………………..
MERCHANDISER SET-UP / ADJUSTABLE DECK ……………………………………………………….
MERCHANDISER START-UP ………………………………………………………………………………..
AVOID BLOCKING AIR DISCHARGE [HONEYCOMB] AND AIR RETURN DUCT …………………..
MAINTENANCE FUNDAMENTALS ………………………………………………………………………….
REFRIGERATION FUNDAMENTALS ………………….……………………………..………………..…...
SERIAL LABEL INFORMATION & LOCATION ...………..……………………………………… ………..
PREVENTIVE MAINTENANCE - HONEYCOMB AIR DIFFUSERS [SERVICE TECHNICIANS
ONLY] ………………………………………………………………………………… … ………… … ………...
TROUBLESHOOTING [TO BE PERFORMED BY TRAINED SERVICE PROVIDERS ONLY] …..….
GENERAL CLEANING [TO BE PERFORMED BY STORE PERSONNEL UNLESS NOTED
OTHERWISE] ……………………………………………………………………..………………….………...
CAREL® TEMPERATURE CONTROLLER INFORMATION ………………………..……………………
TECHNICAL SERVICE CONTACT INFORMATION & WARRANTY INFORMATION ………….…..…
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OVERVIEW / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING - PAGE 1 of 2
OVERVIEW
These Structural Concepts merchandisers are
designed to merchandise 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.
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
This equipment MUST be installed in compliance with
all applicable NEC, federal, state and local
electrical and plumbing codes.
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.
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 / NSF® TYPE / COMPLIANCE / WARNINGS / PRECAUTIONS / WIRING - 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, 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! 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! 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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CASE REMOVAL FROM SKID (LEVELERS OR CASTERS)
1. Removing Case Shipping Brackets That Are Attached To Skid
Remove screws holding Case Shipping Brackets to skid.
Remove Case Shipping Brackets from Skid.
See illustrations below. Note: Shipping Brackets will vary in size, shape, material and location depending
upon case type and model.
Various Types Of
Case Shipping
Brackets
2. Remove Case (With Levelers) From Skid
To prevent damage, support case while
sliding it toward edge of skid.
When case is at edge of skid, carefully lower
to floor (so two levelers rest on floor).
Carefully slide skid out from under case.
After removal of case from skid, place into
position.
Note:Illustration below reflects general
outline of sample case and does not reflect
any particular model or options).
Support
Carefully
Slide Skid
Out From
Under Case
case while
removing
from skid.
3. Remove Case (With Casters) From Skid
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:Illustrations reflect general outline of
sample case and may not reflect your
particular model or options).
Support
case
while
sliding
down
ramp.
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Ramp
MERCHANDISER SET-UP / ADJUSTABLE DECK
Deck
Pans
Condenser
Intake
6”
12”
1. Merchandiser Set-Up
Position Mobile cases in close proximity to a
certified electrical outlet with a ground.
It is recommended that self-contained
refrigerated cases maintain an airflow clearance
of approximately 6” at the rear and 12” in the
front of the case. Obstruction or restriction of air
can void warranty.
2. Adjustable Deck
Adjustments to the lower deck can be made by
repositioning the rear deck support to the
desired height.
Reposition the rear deck with the leading edge
set to the base of the decking as shown below.
Rack Support
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MERCHANDISER START-UP
Merchandiser Start-Up
Position Mobile cases in close proximity to a
certified electrical outlet with a ground.
Plug cord into a certified electrical outlet with
ground.
Turn on the main power. Switch is on rear-right
hand side of case.
Supply power will start evaporator coil fans 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.
When the case is in a start up mode (or has been
idle for a long period of time), the unit will require
approximately 30 minutes runtime in order to pull
down temperature.
Main
Power
Switch
Rear View of Model MOT7248RSS.4876A
Rocker Switch
ON
OFF
OFF ON
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