Structural Concepts HMO5136R Operator’s Manual

READ AND SAVE THESE INSTRUCTIONS

INST ALLATION AND

OPERATING MANUAL

SELF-SERVICE REFRIGERATED BAKERY MERCHANDISER

PN 54190

HMO7536R HMO3936R

HMO7536R

With Optional Security Grid

HMO5136R.4716 Standard With

Steps and Night Curtain

Model HMO3936R…………………………………………....38 3/4”L* x 32”D x 37 3/8”H**

Model HMO5136R.4716………………………….….….......48 3/4”L* x 32”D x 37 3/8”H**

Model HMO7536R……………………………..………….....75 1/8”L* x 32”D x 37 3/8”H”**

*Includes 1” End Panels **Includes Levelers at 1 5/8” Below Base Frame

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

Rev J Date: 8.23.2013 I:\Oper Manuals - PUB\Harmony\HMO[L]36R_4716_54190.pub

TABLE OF CONTENTS

OVERVIEW AND WARNINGS ……..………………..…….………………………..…………………....…..

CASE REMOVAL FROM SKID [LEVELERS OR CASTERS] ……………………………………………...
INSTALLATION …………………………………………………………………..……...………………..…….
POSITIONING, ALIGNING, LEVELING UNIT, REMOVING FRONT GRILLE …..……………………….
START-UP AND OPERATION ……...….…………...…...…..………………………...………….……..……
MAINTENANCE FUNDAMENTALS …...……………………………………………..…………………..…...

MAINTENANCE FUNDAMENTALS - MODEL HMO5136R.4716 [YOUR MODEL MAY DIFFER] …….
MAINTENANCE FUNDAMENTALS - HONEYCOMB AIR DIFFUSER ……….…………………………...

OPTIONAL NIGHT AIR CURTAIN OPERATING INSTRUCTIONS ……...…………………..…………...
STANDARD NIGHT AIR CURTAIN LOCATION FOR MODEL HMO5136R.4716 ………….…………...
SECURITY GRID OPERATING INSTRUCTIONS [OPTIONAL] ………….………………..……………...
SERIAL LABEL INFORMATION & LOCATION …..………………………………………………………….
CLEANING SCHEDULE [TO BE PERFORMED BY STORE PERSONNEL] …………………….……...
PREVENTIVE MAINTENANCE [TO BE PERFORMED BY TRAINED SERVICE PROVIDER] ………..
TROUBLESHOOTING [GENERAL OVERVIEW] …………..……………………………………….……….

TROUBLESHOOTING: REFRIGERATION PACKAGE OVERVIEW ………………..……..…….……….
TROUBLESHOOTING: COMPRESSOR NOT ON / NO DISPLAY ON CONTROLLER ……..…...…….

TROUBLESHOOTING: LIGHTS DO NOT OPERATE …………………………...………………………....

CAREL® CONTROLLER - PROGRAMMING THE INSTRUMENT ……....……………………………….

CAREL® CONTROLLER - USER INTERFACE, SUMMARY TABLES OF ALARMS & SIGNALS …….
CAREL® CONTROLLER - Summary Table of Operating Parameters (After Programming Key) ……...

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

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

OVERVIEW

 These Structural Concepts merchandisers are

designed to merchandise packaged products at 41 °F
[5 °C] or less product temperatures.

 Product must be pre-chilled to 41 °F [5 °C] or less

prior to being placed in merchandiser.

 Temperature on control display will read below

freezing. This is normal and does not reflect your
product temperature.

 Units are set up to defrost every 4 hours. It is normal

to see brief temperature spikes into the 50 °F range at
this time. Product will remain cold during the short
time it takes for the unit to defrost.

 Evaporator fans run constantly as a part of the defrost

process.

 A/C adjustments at night will cause condensation

issues on refrigerated display units.

 Cases should be installed and operated according to

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

CASE 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 (this case) ambient conditions

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

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, CORD/PLUG MAINTENANCE &
WIRING DIAGRAM INFORMATION

 See next page for PRECAUTIONS, CORD/PLUG

MAINTENANCE and WIRING DIAGRAM information.

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.

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 / WIRING / PLUGS - 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,

TYPE, COMPLIANCE and WARNINGS.

CAUTION! LAMP REPLACEMENT GUIDELINES

CAUTION

LED lamps reflect specific size, shape and overall design.

Any replacements must meet factory specifications.

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

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.

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 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 BOTH CONDENSER PAN AND OVERFLOW PAN

Water on flooring can cause extensive damage!

 Condenser pan MUST BE positioned directly under condensate drain.
 Electric coil overflow pan MUST HAVE single plug connected to its box.

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

INSTALLATION

Installation

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

1. Position and Level Units

Position Units. Align multiple units carefully in
areas A, B, and C.

A

B

C

2. Bolting Units Together

Bolt units together at holes indicated at right.
Note

: View at right has shelving removed for
illustrative purposes only. Bolt holes to be at
7 locations (shown at right).

 Note: Use 1/4-20 X .75 bolt at hole

location holes 2, 5 and 6 ONLY.

 Use 1/4-20 x 2.25” bolts for locations 1, 3,

4.

 Remove decks to access bolt holes 3, 4.
 Note 1: Both Casters and Levelers Option

shown in illustration at right.

 Note 2: Illustration at right may not reflect

every feature or option of your particular
case.

1

2

3

4

6

5

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INSTALLATION, CONTINUED

3. Electrical Connections (Remote Cases)

Field wiring connection / electrical access location
is at customer-left side of case.

 Single phase leads are provided.
 Connection

4. Connections/Controller/Main Power Switch
(Self-Contained Units)

Controller/Ballast box is at customer rear.

 See illustrations below.
 Below illustrations show layout of controller,

ballasts, main power switch, terminal block, etc.
after removal of controller/ballast box cover.

Controller

Main Power

Switch

HMO7536R Underside View With

Controller/Ballast Box Cover Intact

Ballasts

HMO7536R Underside With

Controller/Ballast Box Cover Removed

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INSTALLATION, CONTINUED

Case Rear

5. Electrical Connections (Certain Remote Cases)

Field wiring connection / electrical access location is at
customer-left side of case.

 Single phase leads are provided.

6. Evaporator Fan Area

 Illustration below shows front of case with decking

removed.

 See Preventive Maintenance section in this manual

for guidelines on cleaning this area.

Field Wiring Electrical

Connections

Fan Shroud

Fan Blade

Drain

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INSTALLATION, CONTINUED

Honeycomb Air Diffuser

 Honeycomb is located in discharge air duct.
 From inside lower refrigerated area, locate the

two most forward screws which secure the lower
light & discharge panel.

 Remove the two most forward screws; panel

must hang down supported by the rear screws.

Do not force panel lower.

See MAINTENANCE FUNDAMENTALS -
HONEYCOMB AIR DIFFUSER section in this

manual for complete instructions on removal and
installation of honeycomb.

Honeycomb

Honeycomb
Retainer

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