Medium Temperature€¦ · Medium Temperature Meat, Delicatessen, Dairy and Produce Merchandisers...

Medium TemperatureMeat, Delicatessen, Dairy and Produce

Merchandisers

IIMMPPOORRTTAANNTTKeep in store for

future reference!

Merchandisers

®

Installation & Service ManualShipped With Case Data Sheets

P/N 0378414_HImpact Series

June 2010

P/n038414G

INSTALLATIONNSF Certification . . . . . . . . . . . . . . . . . . . 1-1Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Shipping Damage . . . . . . . . . . . . . . . . . . . . 1-1Exterior Loading . . . . . . . . . . . . . . . . . . . . 1-2Merchandisers Shipped with End Installed 1-2Shipping Braces . . . . . . . . . . . . . . . . . . . . . 1-2Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Joining Instructions . . . . . . . . . . . . . . . . . . 1-4Splashguard Bracket and Joint Support . . 1-6Offsetting Bumpers and Top Rail . . . . . . . 1-7

REFRIGERATION / ELECTRICALRefrigerant . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Refrigerant Piping . . . . . . . . . . . . . . . . . . . 2-1Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Suction Line . . . . . . . . . . . . . . . . . . . . . . . . 2-2Liquid Line . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Refrigeration Thermostat . . . . . . . . . . . . . . 2-3Defrost Termination Thermostat . . . . . . . . 2-3Defrost Sequences . . . . . . . . . . . . . . . . . . . 2-3Merchandiser Electrical Data . . . . . . . . . . 2-4Electrical Connections . . . . . . . . . . . . . . . . 2-4Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . 2-4Identification of Wiring . . . . . . . . . . . . . . . 2-4

DRIP PIPING AND SPLASHGUARDSWaste Outlet and Water Seal . . . . . . . . . . . 3-1Installing Drip Piping . . . . . . . . . . . . . . . . 3-1Installing Splashguards and

Lower Front Panels . . . . . . . . . . . . . . . . . 3-3Sealing Splashguard to Floor . . . . . . . . . . 3-4

START UP / OPERATIONStart up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Load Limits . . . . . . . . . . . . . . . . . . . . . . . . 4-1Stocking . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Multi-deck Shelf Alignment . . . . . . . . . . . 4-2Multi-deck Shelf Configuration . . . . . . . . 4-2Shelf Maximum Weight Limits . . . . . . . . . 4-3Installing Lighted Shelves . . . . . . . . . . . . . 4-4Installing FDA/NSF

Required Thermometer . . . . . . . . . . . . . . 4-6

MAINTENANCECare and Cleaning . . . . . . . . . . . . . . . . . . . 5-1Cleaning Under Merchandisers . . . . . . . . 5-2Cleaning Mirrors . . . . . . . . . . . . . . . . . . . . 5-2Cleaning Honeycomb Assemblies . . . . . . . 5-3Removing Interior Back Panels . . . . . . . . . 5-4Removing Scratches from Bumper . . . . . . 5-4

SERVICEReplacing Fan Motors and Blades . . . . . . 6-1Replacing Fluorescent Lamps . . . . . . . . . . 6-2Replacing Lamp-holders and End Caps . . 6-2Replacing Electronic Ballasts . . . . . . . . . . . 6-3Replacing Damaged Drain Fitting . . . . . . 6-4Repairing Aluminum Coils . . . . . . . . . . . . 6-4

WARRANTY

TABLE OF CONTENTS

P/N 0378414_H

IMPORTANTKEEP IN STORE FOR FUTURE REFERENCE

Quality that sets industry standards!

12999 St. Charles Rock Road • Bridgeton, MO 63044-2483

U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900

www.hussmann.com© 2010 Hussmann Corporation

®®

REVISION HISTORY

REVISION H1. Added shelf weight limits table, page 4-3.

REVISION G1. Changed starter bumper, page 1-7.2. Added bumper film removal, page 1-8.3. Added installing optional stainless steel

splashguard, separated sealing standard and optional splashguards to floor, pages 3-3 and 3-4.

4. Updated load limit profiles, pages 4-1 and 4-2.5. Updated shelf bracket profile, page 4-2.6. Added do not use ammonia-based cleaners

on acrylic parts, page 5-1.7. Added damaged honeycomb must be

replaced, page 5-3.

REVISION F1. Added Caution box, page 2-4.2. Added single deck load limit profile, page

4-2.3. Revised lighted shelf installation, pages 4-2

through 4-4.

REVISION E1. Added NSF information on cover and

pages 1-1, 3-1 and 4-4 through 4-6.2. Added lighted shelf installation, pages 4-2

through 4-4.3. Added replacing damaged drain, page 6-4.4. Removed CW2 model information

throughout.

REVISION C1. Added glass front trim note, page 1-9.2. Updated splashguard profile, page 3-3. 3. Updated sealing standard splashguard,

page 3-4. 4. Added sealing optional splashguard, page

3-4. 5. Added Lamp holder and end cap replace-

ment, page 6-2.

* * * * * * * * * * * * * * * * * * * * * * * * * *

ANSI Z535.5 DEFINITIONS

• DANGER – Indicate[s] a hazardoussituation which, if not avoided, willresult in death or serious injury.

• WARNING – Indicate[s] a hazardoussituation which, if not avoided, couldresult in death or serious injury.

• CAUTION – Indicate[s] a hazardoussituation which, if not avoided, couldresult in minor or moderate injury.

• NOTICE – Not related to personal injury –Indicates[s] situations, which if not avoided,could result in damage to equipment.

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P/N 0378414_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com

Medium Temperature

P/N 0378414_H 1-1

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

NSF CERTIFICATION

These merchandisers are manufactured to meetANSI / National Sanitation Foundation(NSF®) Standard #7 requirements. Properinstallation is required to maintain certification.Near the serial plate, each case carries a labelidentifying the type of application for whichthe case was certified.

ANSI/NSF-7 Type I – Display Refrigerator / FreezerIntended for 75°F / 55%RH Ambient Application

ANSI/NSF-7 Type II – Display Refrigerator / FreezerIntended for 80°F / 55%RH Ambient Application

ANSI/NSF-7 – Display Refrigerator Intended for Bulk Produce

LOCATION

These merchandisers are designed for display-ing products in air conditioned stores where temperature is maintained at or below theANSI / NSF-7 specified level and relativehumidity is maintained at or below 55%.

Placing refrigerated merchandisers in direct sunlight, near hot tables or near other heatsources could impair their efficiency.

Like other merchandisers, these are sensitive toair disturbances. Air currents passing around merchandisers will seriously impair their operation. Do NOT allow air conditioning, electric fans, open doors or windows, etc. to create air currents around the merchandisers.

Product should always be maintained at propertemperature. This means that from the time theproduct is received, through storage, preparationand display, the temperature of the productmust be controlled to maximize the life of theproduct.

The exterior frames on these cases providespace for air circulation. However, in highambient conditions, sweating may still occur. If this happens install a method of forced ventilation such as a fan ventilation kit.

Wide Island FrontsBE SURE TO POSITION WIDE ISLAND MERCHANDISER

FRONTS PROPERLY. The front of wide islandmerchandisers is readily identified by the locationof the serial plate (see leveling drawing on nextpage). Since all electrical and refrigeration connections will be made at the front side, thefronts will need to be positioned according tothe store plan layout.

SHIPPING DAMAGE

All equipment should be thoroughly examinedfor shipping damage before and during unloading.

This equipment has been carefully inspected atour factory. Any claim for loss or damage mustbe made to the carrier. The carrier will provideany necessary inspection reports and/or claimforms.

Apparent Loss Or DamageIf there is an obvious loss or damage, it mustbe noted on the freight bill or express receiptand signed by the carrier’s agent; otherwise,carrier may refuse claim.

Concealed Loss Or DamageWhen loss or damage is not apparent until afterequipment is uncrated, retain all packing mate-rials and submit a written request to the carrierfor inspection, within 15 days.

INSTALLATION

Do not walk or put heavy objects on case.

CAUTION!

1-2 INSTALLATION


EXTERIOR LOADING

Do NOT walk on top of merchandisers or damage to the merchandisers and serious personal injury could occur. THEY ARE NOT

STRUCTURALLY DESIGNED TO SUPPORT EXCESSIVE

EXTERNAL LOADING such as the weight of a person. Do not place heavy objects on the case.

MERCHANDISERS SHIPPED WITH END INSTALLED

If the case was shipped with the end installed,two long bolts were used to hold the shippingbrace to the end. If the shipping bolts are reinserted after removing the brace, they willextend into the product area. THEREFORE, BE

SURE TO REPLACE THESE BOLTS WITH THE

SHORTER BOLTS PROVIDED. NSF requires anybolt or screw in the product area be capped orcut off if it has more than three exposedthreads.

NOTE:Be careful not to damage the factoryinstalled end while moving the case.

Make sure that tools are positioned pastthe end and beneath the merchandiser’s

support bar.

SHIPPING BRACES

Move the merchandiser as closeas possible to its permanentlocation and then remove allpackaging. Check for damagebefore discarding packaging.Remove all separately packedaccessories such as kits andshelves.

LEVELING

Merchandisers must be installed level to ensureproper operation of the refrigeration systemand to ensure proper drainage of defrost water.When leveling merchandisers, use a carpenter’slevel as shown. Leveling shims are providedwith each merchandiser for use if needed. Theshims are big enough so that you can leveladjoining merchandisers at the same time usingone shim.

NOTES:• BEGIN LINEUP LEVELING FROM THE HIGHEST

POINT OF THE STORE FLOOR.

• If shimming two corners, check to see if a shimis needed in the center of the merchandiser. If agap exists between the support rail of the merchandiser and the floor, a shim should beplaced in the center.

Do NOT remove shipping braces untilthe merchandisers are positioned

for installation.

WARNING!

Rear

Levels

Serial Plate

Front ofMerchandiser

Medium Temperature

P/N 0378414_H 1-3


Levels

Shim

Levels

NOTE: Do not place levelson Display Pans or on Shelves.

Leveling Single DeckMerchandisers

Leveling Multi-deckMerchandisers

1-4 INSTALLATION

JOINING INSTRUCTIONS

Sectional construction means that two or moremerchandisers may be joined in line yieldingone long continuous display requiring only onepair of ends.

ALL JOINTS MUST BE AIR-TIGHT TO PREVENT

FORMATION OF ICE OR CONDENSATION.

Prep Case1. Check to be sure that merchandisers are

level and that the factory-installed nutretainers and alignment pins are in place.Locate Joint Kit and check contentsagainst parts list.

2. Remove shelves (if installed), displayracks, pans, front shelf supports and frontair grilles from the right end.

3. Remove the rear panel(s) from the rightend. On multi-deck cases remove thelower back panel first. To remove a panellift it up from its bottom edge and out. Notools are required.

Apply Gaskets1. Apply 1/2 in. (13 mm) gasket in the hori-

zontal recess across the bottom and up thefront of the merchandiser as shown.Gasket should cover slots.

2. Apply the 15/8 in. (41 mm) gasket to coverfoam-to-metal gap at rear of case andacross the top as shown. Be sure to over-lap gaskets as shown. Check to be surethat there are no gaps between gasket andmerchandiser.

Fasten Cases1. Move the second merchandiser into posi-

tion against the first. Match the alignmentpins with the corresponding holes.

2. Fasten fronts together using cap screws,flat washers, lock washers and nuts.Tighten only until front panels touch. Do not tighten fully.

3. Use the cap screws, flat washers and lockwashers provided in the joint kit to draw the merchandisers together at rear. Do nottighten fully.

4. Draw canopies of multi-deckwall merchandisers togetherby inserting threaded rodthrough top shoe as shown.Fasten each end with wash-ers and nuts. Tighten onlyuntil canopies touch.

5. Tighten joints in the ordershown (A, B, C, D) until gaskets are compressed, andcases join smoothly.


AB

C

PW & MWGmodels

15/8 in. Gasket (41 mm)

1/2 in. Gasket (13 mm)

AlignmentBullets

A

B

C

DE

15/8 in. Gasket(41 mm)


AlignmentPins

B

C

A



Flat Washer

Hex Nut

ThreadedRod

GlassFrontDetail

Connecting Canopies of Multi-deck Wall Cases

Tighten in Order Shown

IMPORTANT

• Do not stretch gasket, especially around corners.

• Do not butt gaskets; always overlap them as shown.

• Remove paper backingafter gasket has been applied.

Medium Temperature

P/N 0378414_H 1-5


1-6 INSTALLATION

Seal Merchandisers1. Apply butyl tape across the bottom joint.

Be sure to extend the tape up the back andfront of the case.

2. Use field-supplied silicone to fill any gapsbetween the front support brackets.

SPLASHGUARD BRACKET AND JOINT SUPPORT

Install Splashguard BracketPosition splashguard brackets to the merchan-diser and level to the floor. Each bracket has a11/2 in. (38 mm) slot at the rear of the bracketwhere it attaches to the merchandiser. Tightenscrews to secure the brackets.

Install Splashguard Joint SupportPosition the joint support across the bracketsas shown above. Fasten with hex head sheetmetal screws.


Butyl Tape

FrontDetail

SiliconeField Supplied

Bracket Base of Case

Joint Support

Screw

Medium Temperature

P/N 0378414_H 1-7


OFFSETTING BUMPERS AND TOP RAIL

Offsetting the bumpers and top rails helps to disguise the joint locations, giving the lineup asmoother look.

1. Locate starter bumpers and top rail. Theyare shipped with the left-end kit.

2. Remove factory installed top rails andbumpers from cases as follows:

a. To remove top rails, push rail towardthe back of the case with one handwhile lifting the top edge off the lightchannel with the other hand. See drawing below.

b. Starting at one end, carefully peel bottom of top rail free of color paneland set the rail inside the case.

c. Remove upper and lower bumpers bypulling bumper away from bumperretainers. Be careful not to lose theinternal joint trims on the upperbumpers.

3. Starting at the left end ofthe line up, install the upperbumper starter section first.To install:

a. Position internal jointtrims so that the first isflush to the left-endpanel and the second iscentered between thestarter bumper and thefull length bumper asshown below.

b. Install full length bumpers and internaltrims offset across joints. Make surethat no gaps exist between sections.Continue installing the upper bumpersthe length of the line up. Do NOTinstall the last upper bumper section atthis time. This section will be installedin the last step.

4. Install lower bumper starter and full lengthlower bumpers by simply pushing them intoplace. There are no internal joint trims onthe lower bumpers.

Pull

Step 2-b.

UpperBumper

Pull

InternalJoint Trim

Push

Lift

Push

Step 2-a.

Step 2-c.

Retainer

MerchandiserJoint

Full LengthBumper

StarterBumper

Internal Joint Trims

5. Return to the left end of the line up and position the starter section of the top rail as shown.

NOTE: The top rail shouldnot be installed until theupper bumper is securely in place.

6. Push the bottom portionof the short top rail section down over thecolor panel. It helps if you lift the top withyour other hand as shown. You will hearand feel the trim “snap” into place.

NOTE: The trimmust “snap” to be properly positioned.

7. Use one hand to push the top rail towardthe rear of the case while using the otherhand to “snap” the top section down overthe edge of the light channel as shown.

Again, be sure it “snaps” into place.

8. Install full length top rails using the same procedures. Continue installing the top railsthe length of the line up. Do NOT installlast section at this time.

9. Once all except the last sections of upperbumper and top rail have been installedrefrigerate the case line up for at least six(6) hours. The last sections of upper bumperand top rail should be kept inside a refrigeratedcase or cooler during this time. This willallow the bumpers and top rails to contract.

10. Go to the right end of the line up and tapthe top rail and bumpers to close any gaps.

11. Measure and cutlast sections of toprail and bumpers.Use a miter boxand fine-tooth sawto cut last bumpersand top rail tolength. Install thelast sections.

Note: If part of plastic top rail pops loose,remove that section of top rail and re-installaccording to Steps 6 and 7 above. Trying to reinstall only the popped part may not securethe top rail, and may damage the top rail,color panel and light channel.

12. Remove protective film from bumper andtop rail once installation is complete.

GLASS FRONT CASE ONLY: Apply field- supplied silicone sealant to underside of endtrim and press firmly in place.

INSTALLING PARTITIONS

To join same temperature fixtures on differentdefrost cycles, an acrylic partition kit isrequired.

To join unlike fixtures, or like fixtures operat-ing at different temperatures, a 11/2 in.(38 mm) partition kit is required.

Instructions for installing these partitions areincluded with the kits.

1-8 INSTALLATION


Push Lift

Snap

Push

Push

Snap

Miter Box

Bumper

Medium Temperature

P/N 0378414_H 2-1


REFRIGERANT

The correct type of refrigerant will bestamped on each merchandiser’s serialplate. The case refrigeration piping is leaktested, factory sealed and pressurized.Before making refrigeration hookups,depress the universal line valve to ensurethat coils have maintained pressure duringshipment.

REFRIGERANT PIPING

Connection LocationThe refrigerant line connections are at theright- hand end of the merchandiser (as viewedfrom the front) beneath the display pans. Asticker marks the location of the connection“pod.” The installer must saw a hole throughthe pod to exit the case.

After connections have been made, seal this outlet thoroughly. Seal both the inside and theoutside. We recommend using an expandingpolyurethane foam insulation.

MultiplexingPiping of merchandisers operating on the samerefrigeration system may be run from case tocase. DO NOT RUN REFRIGERANT LINES

THROUGH MERCHANDISERS THAT ARE NOT ON

THE SAME REFRIGERATION SYSTEM BRANCH asthis may result in poor refrigeration controland compressor failure.

Interconnecting piping inside the merchandisermust be located as shown below to allow roomfor lifting the hinged fan plenums and for clearance beneath the display pans. Or theinterconnecting piping may be run outside thecase in the wireway area shown.

Line SizingRefrigerant lines should be sized as shown onthe refrigeration legend that is furnished forthe store or according to ASHRAE guide-lines. Refer to the information on the nextpage for branch line piping of HussmannEquipment.

Oil TrapsP-traps (oil traps) must be installed at the baseof all suction line vertical risers.

Pressure DropPressure drop can rob the system of capacity.To keep the pressure drop to a minimum, keepthe refrigerant line run as short as possibleusing a minimum number of elbows. Whereelbows are required, USE LONG RADIUS ELBOWS

ONLY.

REFRIGERATION / ELECTRICAL

Refrigeration lines are under pressureand should be depressurized beforeattempting to make any connections.

WARNING!

When brazing pipes, be sure to use theinsulation blanket shipped with the

merchandiser to prevent damage to theplastic case bottom.

CAUTION!

Fan Plenum

Pan

Pod

PipingLocations

2-2 REFRIGERATION / ELECTRICAL

INSULATION

The suction and liquid lines should be clamped or taped together and insulated for a minimum of 30 ft (9144 mm) from the merchandiser.Additional insulation for the balance of the liquid and suction lines is recommended wherever condensation drippage is objectionableor lines are exposed to ambient conditions.

SUCTION LINE

• Pitch in direction of flow.

• May be reduced by one size at one third ofcase run load and again after the secondthird. Do not reduce below the case suctionline size.

• Case suction lines should enter at the topof the branch line.

LIQUID LINE

• May be reduced by one size after one halfthe case run load. Do not reduce below thecase liquid line connection size.

• Take-offs to case liquid lines should exit thebottom of the branch liquid line. Providean expansion loop for each evaporatortake-off (minimum 3 in. [76 mm] loop).

Suction Line Return

Offtime Defrost

Liquid Line

Suction Line

8 Ft Case(2438 mm)

12 Ft Case(3658 mm)

8 Ft Case(2438 mm)

12 Ft Case(3658 mm)

Minimum Loop3-in. (76 mm)

Liquid Line Take Off


Medium Temperature

P/N 0378414_H 2-3


REFRIGERATION THERMOSTAT

The bulb for the optional refrigeration thermo-stat is located approximately 12 in. (305 mm)above the coil and 6 ft (1829 mm) from theleft-hand end (facing front) of the merchandis-er. The optional refrigeration thermostat islocated 5 ft (1524 mm) from the left-hand end,just past the wireway. On wide island models,the thermostat body is located on the serialplate side (front) of the merchandiser.

DEFROST TERMINATION THERMOSTAT

The standard disc type defrost terminationthermostat is not adjustable. This thermostat isclamped to the suction line of the coil onthe left-hand (facing front) end of the case.

DEFROST SEQUENCES

These merchandisers require defrost cycles forproper operation. Refer to the data sheets forapplication data.

The Time Clock initiates defrost. The evaporatorfans continue to circulate air across the evapo-rator coil, melting any frost build-up. Defrostcan be terminated by either temperature or time.

Temperature TerminationTemperature termination should be used forthe following types of installations:1. Parallel systems with EPRs or suction stop

solenoids2. Single compressor units without pump-

down cycle.

Time Termination Should be used for the following types ofinstallations:1. Parallel systems with thermostat and liquid

solenoid.2. Single compressor units with pump-down.

To use time termination, simply do not wirethe termination thermostat.

OptionalRefrigerationThermostat

Optional RefrigerationThermostat Bulb

Standard DefrostTerminationThermostat

12 in. (305 mm)

5 ft (1524 m

m)

6 ft (1829 mm)

2-4 REFRIGERATION / ELECTRICAL

MERCHANDISER ELECTRICAL DATA

Merchandiser data sheets are included withthis manual. The data sheets provide case elec-trical data, electrical schematics, parts lists andperformance data. Refer to the merchandiserdata sheets and case serial plate for electricalinformation.

ELECTRICAL CONNECTIONS

All wiring must be in compliance with NECand local codes. All electrical connections areto be made in the electrical wireway or HandyBox.

FIELD WIRING

Field wiring must be sized for componentamperes stamped on the serial plate. Actualampere draw may be less than specified. Fieldwiring from the refrigeration control panel tothe merchandisers is required for defrost termination thermostats and for optionalrefrigeration thermostats. When multiple merchandisers are on the same defrost circuit,the defrost termination thermostats are wired inseries. ALWAYS CHECK THE SERIAL PLATE FOR

COMPONENT AMPERES.

IDENTIFICATION OF WIRING

Leads for all electrical circuits are identified bycolored plastic bands. These bands correspondto the color code sticker (shown below) locatedinside the merchandiser’s wireway.Optional T8 rail lights and

optional Quick Connect spray hose or field-installed misting system

shall not be used together.

CAUTION!

WIRING COLOR CODELeads for all electrical circuits are identified by a colored plastic band: neutralwire for each circuit has either White insulation or a White plastic sleeve inaddition to the color band.

PINK ............REFRIG. THERMOSTAT LOW TEMP. ORANGE OR

LIGHT BLUE..REFRIG. THERMOSTAT NORM TEMP. TAN ..........LIGHTS

DARK BLUE ..DEFROST TERM. THERMOSTAT MAROON...RECEPTACLES

PURPLE........CONDENSATE HEATERS YELLOW....DEFROST HEATERS 120VBROWN ........FAN MOTORS RED ........DEFROST HEATERS 208VGREEN* .......GROUND *EITHER COLORED SLEEVE OR COLORED INSULATION

ELECTRICIAN NOTE: Use copper conductor wire only.MERCHANDISER MUST BE GROUNDED

THESE ARE MARKER COLORS WIRES MAY VARY.


Medium TemperatureHUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

WASTE OUTLET AND WATER SEAL

The waste outlet is located in front of the fanplenum 6 ft (1829 mm) from the left-hand endof the merchandiser (facing case front). Awater seal is supplied with each fixture. Thewater seal must be installed to the waste outletto prevent air leakage and insect entrance intothe fixture.

NOTE:Water seal outlet must clear front skid rail.

A Tee, adapter, plug and street ell are also supplied with each merchandiser.

INSTALLING DRIP PIPING

Poorly or improperly installed drip pipes can seriously interfere with the merchandiser’soperation and result in costly maintenance andproduct losses. Please follow the recommendationslisted below when installing drip pipes toensure proper installation.

1. Never use drip piping smaller than thenominal diameter of the pipe or water sealsupplied with the merchandiser.

2. When connecting drip piping, the “waterseal” must be used as part of the drip piping to prevent air leakage or insectentrance. Never use two water seals inseries in any one drip pipe. DOUBLE WATER

SEALS IN SERIES WILL CAUSE AN AIR LOCK

AND PREVENT DRAINING.

3. Pitch the drip piping in the direction offlow. There should be a minimum pitch of1/4 in. per ft (20 mm per 1 m).

4. Avoid long runs of drip piping. Long runsmake it impossible to provide the pitch necessary for good drainage.

5. Provide a suitable air break betweenflood rim of the floor drain and outlet of drip pipe. To meet code onlow base merchandisers, it may benecessary to install a field-supplieddrip pipe reducer. An alternative is tocut the last section of drip pipe at anangle.

6. Prevent drip pipes from freezing:

A. Do NOT install drip pipes in contactwith uninsulated suction lines. Suction linesshould be insulated with a nonabsorbentinsulation material.

B. Where drip pipes are located in dead airspaces, such as between merchandisers orbetween a merchandiser and a store wall, provide means to prevent freezing.

P/N 0378414_H 3-1

Splashguard brackets MUST be installedbefore piping case.

DRIP PIPING AND SPLASHGUARDS

CAUTION!

3-2 DRIP PIPING AND SPLASHGUARDS

See the case data sheet set for dimensions.Each waste outlet will be interconnected withfactory installed drip piping. When a 6 ft(1829 mm) end merchandiser is ordered to bejoined to a center case at the factory, its wasteoutlet can also be interconnected as shown. Adrain piping connect kit is required.

Each merchandiser is supplied with a 2 in.(51 mm) water seal, an adapter, a plug and astreet ell. The street ell and water seal must beinstalled to prevent air leakage and insectentrance into the merchandiser. They shouldbe installed as shown below.


Produce / Meat Wide Island Merchandisers

NOTE:Water seal outlet must clear front skid rail.

End Case 6, 8 or 12 Ft Case (1829, 2438 or 3658 mm Case)

Base

Cleanout Adapter and Plug Standard

Raceway


INSTALLING SPLASHGUARDS &LOWER FRONT PANELS

The splashguard and lower front panel areshipped inside each merchandiser. AFTER

merchandisers have been leveled and joined,and all drip piping, electrical and refrigerationwork has been completed, install the splash-guard and lower front panel.

NOTE: Merchandisers with low bases do nothave lower front panels and require only theinstallation of splashguards.

To Install Splashguards:1. Check to be sure that all splashguard

brackets are level with the floor.2. Position top of splashguard over the top

edge of the bracket as shown below. 3. Push the lower edge of the splashguard

toward the bottom of the bracket until itsnaps into place.

To Install Lower Front Panel1. Position the lower front panel with the top

angled as shown in the illustration below. 2. The tabs extending from the upper front

panel assembly are designed to fit into theslots on the top of the lower front panel.

3. Once the top is positioned, lift the panel upand drop it into the grove at the top of thesplashguard.

SEALING SPLASHGUARD TO FLOOR

IF REQUIRED by local sanitation codes, or ifdesired by the customer, plastic splashguardsmay be sealed to the floor using silicone typesealer. The amount needed will depend on howmuch the floor is out of level.

1. Remove all dirt, wax and grease from thearea of the splashguard where adhesion willbe necessary to ensure a secure installation.

2. Apply a good silicone type sealer along thebottom of the splashguard. Sealant mustbe removed and replaced when servicing.

P/N 0378414_H 3-3

Silicone-typeSealer

Splashguard

Lower Front Panel3.

Tab

Lower Front Panel

1. &2.

3.

Splashguard

2.

Bracket Base ofCase

1.

Splashguard

Lower Front Panel

Bracket

Base ofCase

3-4 DRIP PIPING AND SPLASHGUARDS

INSTALLING OPTIONAL STAINLESSSTEEL SPLASHGUARDS

The OPTIONAL Stainless steel splashguard isalso shipped inside the merchandiser. AFTER allthe merchandisers have been leveled andjoined, and all drip piping, electrical andrefrigeration work has been completed, installthe OPTIONAL Stainless steel splashguard and,if appropriate, the lower front panel.

To Install Splashguards:1. Check to be sure that all splashguard

brackets are level with the floor.2. Position top of splashguard over the top

edge of the bracket as shown below. 3. Push the lower edge of the splashguard

toward the bottom of the bracket until itsnaps into place.

To Install Lower Front Panel1. Position the lower front panel with the top

angled as shown in the illustration below. 2. The tabs extending from the upper front

panel assembly are designed to fit into theslots on the top of the lower front panel.

3. Once the top is positioned, lift the panel upand drop it into the grove at the top of thesplashguard.

OPTIONAL Stainless steel splashguards may besealed to the floor using a vinyl cove base trim.The size of trim needed will depend on howmuch the floor is out of level.

To install the trim to the splashguard:1. Remove all dirt, wax and grease from the

area of the splashguard where adhesion willbe necessary to ensure a secure installation.

2. Apply a good contact cement to the covetrim and allow proper drying time accord-ing to the directions supplied with thecement.

3. Install the trim to the splashguard so that itis lying flush with the floor. DO NOT SEAL

THE TRIM TO THE FLOOR.4. If required by local health codes the Cove

Trim may be sealed to the floor, using a silicone type sealer. Sealant must beremoved and replaced when servicing.


Splashguard

Lower Front Panel3.

Tab

Lower Front Panel

1. &2.

3.

Splashguard

2.

Bracket Base ofCase

1.

Splashguard

Lower Front Panel

Bracket

Base ofCase

Cove Trim Cement


P/N 0378414_H 4-1

START UP

See the merchandiser's Data Sheet Set for refrigerant settings and defrost requirements.Bring merchandisers down to the operating temperatures listed on the data sheet.

Each four foot section has its own evaporatorcoil and pre-set non-adjustable thermostaticexpansion valve (TEV). No adjustment isrequired.

DO NOT REMOVE THE CAP ON THE TEVS. Thiscap is to be removed only for valve disassembly.Removal of this cap during case maintenancewill result in refrigerant loss unless the systemis first isolated and the refrigerant recovered.

The TEV has been factory set to provide the recommended performance settings as specifiedon the merchandiser data sheets.

STOCKING

Product should NOT be placed in merchandisersuntil case is at proper operating temperature.

Proper rotation of product during stocking is necessary to prevent product loss. Alwaysbring the oldest product to the front and setthe newest to the back.

AIR DISCHARGE AND RETURN FLUES MUST

REMAIN OPEN AND FREE OF OBSTRUCTION AT

ALL TIMES to provide proper refrigeration andair curtain performance. Do not allow prod-uct, packages, signs, etc. to block these grilles.Do not use non-approved shelving, baskets,display racks, or any accessory that couldhamper air curtain performance.

LOAD LIMITS

Each merchandiser has a load limit decal.Shelf life of perishables will be short if loadlimit is violated. AT NO TIME SHOULD

MERCHANDISERS BE STOCKED BEYOND THE LOAD

LIMITS INDICATED.

DO NOT BLOCK HONEYCOMB.

START UP / OPERATION

REMOVAL OF THE TEV CAP WILL RESULT IN

REFRIGERANT LOSS UNLESS THE SYSTEM IS FIRST

ISOLATED AND THE REFRIGERANT RECOVERED.

LOAD LIMIT

CAUTION!PRODU CT

PRODU CT

PRODU CT

PRODU CT

PRODUC T

PRODU CT

PRODU CT

PRODUC T

CORRECT WRONG

CO

LD A

IR C

UR

TAIN

PRODUCT

PRODUCT

0482814

CO

LD A

IR C

UR

TAIN

MULTI-DECK SHELF ALIGNMENT

Taped to one of the shelves of each merchandiseris a small plastic bag containing shelf alignmentstrips. These strips are designed to enhance theappearance of the shelves by aligning the frontedge of each shelf with that of an adjacentshelf.

When installing shelves:1. Insert one of the alignment strips into the

slot behind the front edge of each shelf.

2. After all shelves are installed, slide the stripacross the shelf joint wherever two shelvesare adjacent. This will lock them together.

MULTI-DECK SHELF CONFIGURATION

The bottom display shelves can be adjusted toaccommodate shallow or volume displays(bulky items such as hams or chickens). Theupper shelves are individually mounted in 1 in.(25 mm) increments and have two-, three-, orfour-position brackets permitting shelves to beplaced in a flat or down-tilt position (see illus-tration). Front product stops are recommendedwhen shelves are placed in the down-tilt position.

Merchandiser performance will be degraded ifpeg shelves are used without baffles. Unauthorizedspecialty shelving may cause poor merchandiserperformance also. Consult your Hussmann representative to ensure optimum performanceof all Hussmann equipment.

4-2 START UP / OPERATION


2-Position 3-Position 4-Position

Shelf Alignment Strip(5/8 x 6 in. —16 x 152 mm)

Shelf Alignment Strip5/8 x 6 in. – 16 x 32 mm)


P/N 0378414_H 4-3

Weight Limits for Merchandiser Shelving

Nominal Shelf Depth

Maximum Load Limit

SHELF MAXIMUM WEIGHT LIMITS

Hussmann merchandiser shelves are designedto support the maximum weight load limits asindicated in the table below.

Exceeding these maximum weight load limitsmay cause damage to the shelf or shelves,damage to the merchandiser, damage to storeproducts, and potentially create a hazardouscondition for customers and staff. Exceedingthe indicated maximum weight load limits con-stitutes misuse as described in the HussmannLimited Warranty.


PROCEDURE FOR INSTALLINGLIGHTED SHELVES

Follow these instructions to ensure good contact between male and female connectors.

1. Remove produce from shelf and place incooler. SHUT OFF POWER TO THE

MERCHANDISER.

2. Turn off Canopy Light Switch. Remove allpacked shelves.

3. Remove shelf connectors from power sockets. Always grip shelf connector by thehandle when removing from socket. PULL

handle DOWN AND THEN OUT to disengage. Note that latch tongue must depress to disengage plug.

4. Engage each power socket cap and ensurethat each cap is fully seated before cleaning.Ensure the proper seating of the cap at alltimes when the plug is not engaged.


Shelf Light ReceptacleShelf Light Plug

— LOCK OUT / TAG OUT —To avoid serious injury or death from electricalshock, always disconnect the electrical powerat the main disconnect when servicing orreplacing any electrical component. Thisincludes, but is not limited to, such items asdoors, lights, fans, heaters, and thermostats.

WARNING!

Light Switch Location

Shelf Connector Handle

Latch Tongue

Crossbar


5. Clean the merchandiser as described in theCare and Cleaning paragraphs of Section 5– Maintenance. Keep liquid out of sockets.(Allow merchandiser shelves to dry beforeturning on shelf power.)

6. Verify that power is at the merchandiserand turned on. Verify that the merchandis-er light switch is turned “OFF.” Switch islocated in the canopy, on the left, behindfirst row of lamps.

7. See the illustration below. It is typical ofD5, C5, and D6 models. Note that othermodels will have fewer rows of shelves.Starting from the left-hand bottom section,choose the location for the first shelf, X-1.

Secure the shelf in the slotted upright.Make certain that the shelf is level and thatends are in the same slot on the left andright upright. It is important that shelfbrackets be properly seated in the slottedupright.

8. Working from left to right, install the nextshelf, X-2, to the right of the first shelf youinstalled. Always work from left to rightand from the bottom up in each 8 ft (2438mm) and 12 ft (3685 mm) merchandiser.

9. After each shelf on the bottom row is inposition, be sure to remove the cap andinsert the shelf connector. Push firmly.

10. Turn “ON” the merchandiser light switchafter the entire bottom row has beeninstalled in either 8 or 12 ft (2438 or 3658mm) merchandisers. The shelf lights shouldlight.

If a shelf LED lights do not operate, A. Turn off light switch.B. Remove and firmly re-insert each shelf plug.C. Turn on light switch.

P/N 0378414_H 4-5

Shelf Socket

10 Sockets in 8-ft Case

15 Sockets in 12-ft Case

Always work Left to Right, and Bottom to Top

X-1

X-4

X-7

X-10

X-13

X-2

X-5

X-8

X-11

X-14

X-3

X-6

X-9

X-12

X-15


Note: LED lamps use a 24VDC power supply.If a shelf fluorescent light does not operate:A. Turn off light switch.B. Make certain the shelf lamps are properlyengaged in the shelf lamp holders.C. Remove and firmly re-insert each shelfplug.D. Turn on light switch.

Note: The ballasts used in Impact models havebuilt-in anti-arc protection. An electrical arcmay occur if a shelf plug is not seated properly,or if a lamp is not properly seated in a lampholder. The ballast will shut down when itdetects an arc. Two to four lamps will be out inthe merchandiser when this occurs. Carefullycheck the plugs to make sure they are fullyseated, and check the lamps to ensure they arefirmly seated in the lamp-holders on the affectedshelves. To reset a ballast that has ‘tripped’ onanti-arc, turn off the merchandiser light switchfor a minimum of 15 seconds, then turn it on.

11. Using the row of shelves just installed assupport, set the next shelf, X-4, in thedesired location. Remove the cap and insertthe shelf plug. Continue working left toright installing shelves X-5 and X-6.Note: Since the location for the remainingshelves, X-4 to X-15, may be directly over the rear wall receptacle, the shelf should beplugged in before engaging brackets in theuprights. The lower shelf will support theweight of the next shelf until it is plugged in. After installing each shelf, verify that itsplug is properly connected to its rear wall receptacle. Continue working row by row, bottom up, left to right.

ImportantIf a shelf is plugged in and the lamp or LEDdoes not work, verify:A. the case light switch is “ON” and B. that the shelf lamp is properly engaged in

the shelf lamp holders.

INSTALLING FDA/NSF REQUIRED THERMOMETER

The following pages provide the same informa-tion that ships with the thermometer.

This requirement does not apply to displayrefrigerators intended for bulk produce (refer topage 1-1).

Please note that the tape cannot be exposedafter installation.



P/N 0378414_H 4-7

This is an NSF-7 &US FDA Food Code

RequiredThermometer

End Panel

Suggested Mounting Locations in Multi-deck Merchandisers

Price Tag Molding

Suggested Mounting Locations in Single Deck Glass Front

Impact Merchandisers

Package Guard, Facing Out

Hussmann P/N 0429971_C 10/2007

Double Stick Tape

Flexible PlasticFits in Price TagMoldings

Hussmann Corporation • 12999 St. Charles Rock Road • Bridgeton, MO 63044-2483 U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com

© 2007 Hussmann Corporation

Thermometer — Hussmann Part TM.4911251



Each installation will be different

depending on how the unit is

stocked, shopping patterns in the

department and ambient conditions

of the store. The suggested loca-

tions provided herein are possible

locations. It is the responsibility of

the purchaser / user to determine

the location within the food storage

area of the unit that best meets the

code requirements above.

The thermometer may need to be

moved several times to find the

warmest location. Mounting options

include flexible plastic for price tag

molding application, magnet

applied to back of flexible plastic for

steel end wall, and double stick

tape. Tape must not be exposed

after installation.

Questions about either code should

be addressed to local agencies or

other appropriate officials.

Important – Please read!

Keep with merchandiser

or give to store manager.

DO NOT DESTROY.

This thermometer is provided in response to United States

Food and Drug Administration (US FDA) Food Code [ http://www.fda.gov/ ]

and

National Sanitation Foundation (NSF / ANSI) Standard 7 [ http://www.nsf.org/ ]


CARE AND CLEANING

Long life and satisfactory performance of anyequipment is dependent upon the care itreceives. To ensure long life, proper sanitationand minimum maintenance costs, these merchandisers should be thoroughly cleaned,all debris removed and the interiors washeddown, weekly.

Fan PlenumTo facilitate cleaning, the fan plenum is hinged.After cleaning be sure the plenum is properly lowered into position OR PRODUCT LOSS WILL

RESULT due to improper refrigeration.

Removable Front Shelf Support and Return Air GrilleThe front shelf support may be removed to facilitate cleaning. Simply lift a four-foot section up and out as shown below.

Exterior SurfacesThe exterior surfaces must be cleaned with amild detergent and warm water to protect andmaintain their attractive finish. NEVER USE

ABRASIVE CLEANSERS OR SCOURING PADS.

Interior SurfacesThe interior surfaces may be cleaned with mostdomestic detergents, ammonia based cleanersand sanitizing solutions with no harm to thesurface.

Do NOT Use:•Abrasive cleansers and scouring pads, as thesewill mar the finish.

•Ammonia-based cleaners on acrylic parts.

•A hose on lighted shelves or submerge theshelves in water.

•Solvent, oil or acidic based cleaners on any interior surfaces.

•A hose on rail lights, canopy lights or anyother electrical connection.

P/N 0378414_H 5-1MAINTENANCE

Do NOT use HOT water on COLD glass surfaces. This can cause the glass to

shatter and could result in personal injury.Allow glass fronts, ends and service doors

to warm before applying hot water.

WARNING!

SHUT FANS OFF DURING CLEANING PROCESS.

WARNING!

Removable FrontShelf Supports

RemovableReturn AirGrilles

Product will be degraded and may spoil if

allowed to sit in a non-refrigerated area.

WARNING!

5-2 MAINTENANCE

Do NOT Use:•Abrasive cleansers and scouring pads, as thesewill mar the finish.• Coarse paper towels on coated glass.•Ammonia-based cleaners on acrylic parts.•A hose on lighted shelves or submerge theshelves in water.•Solvent, oil or acidic based cleaners on any interior surfaces.•A hose on rail lights, canopy lights or anyother electrical connection.

Do:•Remove the product and all loose debris toavoid clogging the waste outlet.•Engage shelf light caps if removing shelves.•Store product in a refrigerated area such as a cooler. Remove only as much product as canbe taken to the cooler in a timely manner.•First turn off refrigeration, then disconnectelectrical power.•Thoroughly clean all surfaces with soap andhot water. DO NOT USE STEAM OR HIGH WATER

PRESSURE HOSES TO WASH THE INTERIOR. THESE

WILL DESTROY THE MERCHANDISERS’ SEALING

CAUSING LEAKS AND POOR PERFORMANCE.•Lift hinged fan plenum for cleaning. Hookchain in rear panel to secure plenum duringcleaning. BE SURE TO REPOSITION THE FAN PLENUM

AFTER CLEANING MERCHANDISER.•Take care to minimize direct contact betweenfan motors and cleaning or rinse water.•Rinse with hot water, but do NOT flood. NEVER INTRODUCE WATER FASTER THAN THE

WASTE OUTLET CAN REMOVE IT.•Allow merchandisers to dry before resumingoperation.

•Wipe down lighted shelves with a dampsponge or cloth so that water does not enterthe light channel. DO NOT USE A HOSE OR SUB-MERGE SHELVES IN WATER.•After cleaning is completed, turn on power tothe merchandiser.•Ensure shelf lights are fully seated andengaged.

CLEANING MIRRORS

Mirrors are sheets of clear glass that have verythin reflective and protective coatings appliedto one side. These coatings are susceptible to deterioration if certain cleaning solutions andeven water are allowed to come in contactwith them. Every precaution should be takento keep all liquids away from the coated sideof the mirrors. IF LIQUIDS ARE ALLOWED TO

FLOW ALONG THE FACE SIDE OF THE MIRROR TO

ITS EDGE, THE LIQUID CAN SEEP UP BETWEEN

THE COATING AND THE GLASS, CAUSING SERIOUS

DAMAGE.

To Help Prolong the Life of the Mirrors:•Use only mild cleaning solutions that do notleave residue, such as a weak (10%) solution ofvinegar and water.•Do NOT spray liquids on the mirrors. Awayfrom food, dampen the cleaning cloth, thenuse the cloth to wipe the mirror.•Wipe water from the mirrors immediately to prevent difficult to remove water spots and alsoto prevent the water from reaching the mirror’sedge.•Never use dirty cloths, scrapers or any otherabrasive materials for cleaning.

CLEANING UNDER MERCHANDISERS

Remove splashguards not sealed to floor. Usea vacuum with a long wand attachment toremove accumulated dust and debris fromunder the merchandiser.


Do NOT allow cleaning agent orcloth to contact food product.

WARNING!


CLEANING HONEYCOMB ASSEMBLIES

Honeycombs should be cleaned every sixmonths. Dirty honeycombs will cause merchandisers to perform poorly. The honey-combs may be cleaned with a vacuum cleaner.Soap and water may be used if all water isremoved from the honeycomb cells beforereplacing. Be careful not to damage the honey-combs.

Single Deck Cases1. Using a flat object such as a screw driver,

compress the honeycomb and remove it from its retainer.

2. Clean and dry the honeycomb.

3. After cleaning, replace in reverse order.

Multi-deck Cases1. Loosen or remove screw to free honey-

comb.

2. Clean and dry the honeycomb.

3. After cleaning, replace honeycomb andslide retainer forward and to the right.

Damaged honeycomb must be replaced.

CLEANING STAINLESS STEEL RAILS

Use non-abrasive cleaning materials, andalways polish with grain of the steel. Use warmwater or add a mild detergent to the water andapply with a cloth. Always wipe rails dry afterwetting.

Use alkaline chlorinated or non-chlorinecontaining cleaners such as window cleanersand mild detergents. Do not use cleanerscontaining salts as this may cause pitting andrusting of the stainless steel finish. Do not usebleach.

Clean frequently to avoid build-up of hard,stubborn stains. A stainless steel cleaningsolution may be used periodically to minimizescratching and remove stains.

Rinse and wipe dry immediately after cleaning.Never use hydrochloric acid (muratic acid) onstainless steel.

P/N 0378414_H 5-3

Honeycomb

Retainer

Honeycomb

Retainer Screw

5-4 MAINTENANCE


REMOVING INTERIOR BACK PANELS

The interior back panels may be removed forcleaning and to gain access to the evaporatorcoils. Remove the rear interior back panels asfollows:

1. DISCONNECT THE ELECTRICAL POWER TO

THE MERCHANDISER.

2. Remove shelving.

3. Remove the lower panel first: lift the panelup, then pull forward and out.

4. Remove the top panel.

5. Replace panels in reverse order, startingwith the top panel.

6. After cleaning or servicing the merchandiser, reconnect the electrical power.

REMOVING SCRATCHES FROMBUMPER

Most scratches and dings can be removedusing the following procedure.

1. Use steel wool to smooth out the surfacearea of the bumper or top rail.

2. Clean area.

3. Apply vinyl or car wax and polish surfacefor a smooth glossy finish.


P/N 0378414_H 6-1

REPLACING FAN MOTORS AND BLADES

See cross section for location of evaporatorfans. Should it ever be necessary to service orreplace the fan motors or blades be certainthat the fan blades are re-installed correctly.

For access to these fans:

1. Turn off power.

2. Remove bottom display pans.

3. Disconnect fan from wiring harness.

4. Remove fan blade.

5. Remove screws holding fan motor/bracketassembly to plenum and remove assembly.

6. Replace fan motor/bracket assembly andreinstall screws.

7. Reinstall fan blade.

8. Reconnect fan to wiring harness.

9. Turn on power.

10. Verify that motor is working and blade isturning in the correct direction.

11. Close air gaps under fan plenum. Warmerair moving into refrigerated air reduceseffective cooling. If the plenum does notrest against the case bottom without gaps,apply foam tape to the bottom of the fanplenum to reduce improper air movement.Use silicone sealant to close other gaps.

12. Replace display pans. Bring merchandiserto operating temperature before restocking.

SERVICE

— LOCK OUT / TAG OUT —To avoid serious injury or death from electricalshock, always disconnect the electrical powerat the main disconnect when servicing orreplacing any electrical component. Thisincludes, but is not limited to, such items asdoors, lights, fans, heaters, and thermostats.

WARNING!

AirflowDirection

S ervi c e # MO.XX X XX X X

XXXXXXX

Screws

Plenum

Fan Assembly

Fan Blade

MotorBracket

Speed-Nut

6-2 SERVICE


REPLACING FLUORESCENT LAMPS

Fluorescent lamps are furnished with moistureresistant lamp holders, shields and end caps.Whenever a fluorescent lamp is replaced, be certain to reinstall the lamp shields and endcaps.

The switch in the canopy operates both thecanopy and the shelf lamps. The rail lampswitch is located on the rail.

REPLACING LAMP HOLDERS AND END CAPS

The Impact lamp holder is designed to snapinto the sheet metal of the case. The lampholder has a locking ‘nub’ which fits inside thegroove of specially designed end caps.

IMPORTANT!Always replace lamp holders and end caps withHussmann lamp holders and end caps.

Use of non-Hussmann parts may result inpoor electrical contact and short lamp life.

Groove

Nub

Impact End-Cap

Impact LampHolder

Plastic Shield

End Cap

Fluorescent Lamp


REPLACING ELECTRONIC BALLASTS

Rail Lamp BallastThe rail lamp ballast is located in the wireway,behind the lower front panel at the left-handend of the merchandiser. NOTE: The switchfor the rail lamp is separate from the canopyand shelf lighting. The rail lamp switch islocated on the rail.

To gain access:1. DISCONNECT THE ELECTRICAL POWER TO

THE

MERCHANDISER.

2. Remove the lower front panel by lifting itup and out.

3. Remove screws attaching the wireway cover,then remove cover.

4. Service or replace ballast as required.Reassemble items as they were originallyinstalled.

5. Reconnect the electrical power.

Canopy and Shelf Lamp BallastsThese ballast are located at the top of the merchandiser inside the canopy. The switch in the canopy operates both the canopy and the shelf lamps. The rail lamp has a separateswitch.

1. DISCONNECT POWER TO THE MERCHANDISER.

2. Remove fluorescent lamps from the canopy.

3. Remove the screws that secure the lamppanel.

4. Grasping the light panel at the area where the top of the panel and the top of the merchandiser meet, pull back and down until the panel swings freely.

5. Replace ballast and reassemble parts inreverse order.

6. Reconnect the electrical power.

P/N 0378414_H 6-3

NOTE:The ballast are in sequence from the left-hand end

of the merchandiser (facing front) as follows: Farthest left, bottom shelf ballast, then center shelf

or shelves, top shelf, first row canopy and last is second row canopy.

The rail lamp ballast is located in the wireway.

Ballast located inside wireway

Lower Front Panel

Canopy and Shelf Lamp Ballasts

Screw

6-4 SERVICE


REPLACING DAMAGED DRAIN FITTING

The following procedure is for the field repair ofa broken drain fitting.

1. Use a drill with a 2 in. (51 mm) hole saw todrill out the bottom of the drain fitting. Besure to drill completely through fitting andbottom liner.

2. Apply an ABS and PVC compatible primer-sealer to outside of PVC coupling and insideof drain. Insert coupling into drain fitting.

3. Install a PVC adapter on the drip trap. Applyprimer-sealer to a stub piece of PVC pipe andinsert between coupling and adapter.

REPAIRING ALUMINUM COIL

The aluminum coils used in Hussmann merchan-disers may be easily repaired in the field.Materials are available from local refrigerationwholesalers.

Hussmann recommends the following solders andtechnique:

SoldersAladdin Welding Products Inc.

P.O. Box 71881300 Burton St.Grand Rapids, MI 49507

Phone: 1-800-645-3413Fax: 1-800-645-3414

X-Ergon1570 E. NorthgateP.O. Box 2102Irving, TX 75062

Phone: 1-800-527-9916

NOTE: Hussmann Aluminum melts at 1125°F (607°C)Aladdin 3-in-1 rod at 732°F (389°C)X-Ergon Acid core at 455°F (235°C)

Technique:1. Locate Leak.2. REMOVE ALL PRESSURE.3. Brush area UNDER HEAT.4. Use PRESTOLITE TORCH ONLY.

Number 6 tip.5. Maintain separate set of stainless steel

brushes and USE ONLY ON ALUMINUM.6. Tin surface around area.7. Brush tinned surface UNDER HEAT,

thoroughly filling the open pores around leak.8. Repair leak. Let aluminum melt solder, NOT

the torch.9. Don't repair for looks. Go for thickness.10. Perform a leak check.11. Wash with water.12. Cover with a good flexible sealant.Drip

Trap

ModifiedDrain Fitting

PVC Couplingslip fit, 2 in. OD (51mm)1 1/4 in. ID (32 mm)(obtained at localbuilding supply store)

Foam BottomAssembly

PVC Adapter1 1/2 x 1 1/4 in.(38 x 32 mm)(obtained atlocal buildingsupply store)

StubPipe

Drain FittingViewed from Inside Merchandiser

®

To obtain warranty information or other support, contact your

Hussmann representative.Please include the model and serial number of the product.

U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900www.hussmann.com

Hussmann Corporation, Corporate Headquarters: Bridgeton, Missouri, U.S.A. 63044-2483 01 July 2008

Hussmann CorporationIngersoll Rand Climate Solutions12999 St. Charles Rock RoadBridgeton, MO 63044www.hussmann.com

Medium Temperature€¦ · Medium Temperature Meat, Delicatessen, Dairy and Produce Merchandisers...

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