Hussmann Rear Roll-in Dairy User manual

Rear Roll-in Dairy
Medium Temperature Free Standing or Suspended
Merchandisers Installed in Walk-in Cooler Exterior Walls
IMPORTANT
Keep in store for
future reference!
Installation &
Operation Manual
Shipped With Case Data Sheets
P/N 0485219_E
Excel Series
January 2022
Spanish 0532258
MANUAL- I/O EXCEL REAR ROLL-IN DAIRY
®
Æ

BEFORE YOU BEGIN
Read these instructions completely and carefully.
PERSONAL PROTECTION EQUIPMENT (PPE)
Only qualified personnel should install and service
this equipment. Personal Protection Equipment
(PPE) is required whenever installing or servicing this
equipment. Always wear appropriate PPE as required
by OSHA regulations, as well as all other federal,
state and local codes. PPE may include, but is not
limited to, safety glasses, gloves, protective boots or
shoes, long pants, and a long-sleeve shirt. Observe
all precautions on tags, stickers, labels and literature
attached to this equipment.
ANSI Z535.5 DEFINITIONS
• DANGER – Indicate[s] a hazardous situation
which, if not avoided, will result in death or
serious injury.
• WARNING – Indicate[s] a hazardous situation
which, if not avoided, could result in death or
serious injury.
• CAUTION – Indicate[s] a hazardous situation
which, if not avoided, could result in minor or
moderate injury.
• NOTICE – Not related to personal injury – Indicates[s]
situations, which if not avoided, could result in damage
to equipment.
The information contained in this document is the property
of Hussmann Corporation and shall not be used in whole
or in part without written permission.
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— LOCK OUT / TAG OUT —
To avoid serious injury or death from electrical shock,
always disconnect the electrical power at the main
disconnect when servicing or replacing any electrical
component. This includes, but is not limited to, such
items as controllers, electrical panels, condensers,
lights, fans, and heaters.
This manual was written in accordance with originally
prescribed equipment that is subject to change. Hussmann
reserves the right to change all or part of the
equipment for future stores such as, but not limited
to, controllers and electrical specifications.
Proper Field Wiring and Grounding Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements
for field wiring installation and grounding as described
in NEC and your local/state electrical codes.
Case tipping may occur if cases are not properly
leveled and secured.
Do not use mechanical devices or other means to
accelerate the defrosting process.
Do not use electrical appliances inside the food
storage compartments of the case(s).
Case ventilation openings must be clear of any
obstructions. Do not damage the refrigerant circuit.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E iii
Medium Temperature Excel
INSTALLATION
NSF Certification ................... 1-1
Model Description .................. 1-1
Location ........................... 1-1
Shipping Damage .................... 1-1
Exterior Loading .................... 1-2
Merchandiser Ends .................. 1-2
Shipping Braces ..................... 1-2
Leveling............................ 1-2
Installing D5XRRIS ................. 1-3
Installing D5XRRI .................. 1-5
Rear Curtain Installation ............. 1-5
Joining Instructions .................. 1-5
Installing Partitions .................. 1-5
REFRIGERATION / ELECTRICAL
Refrigerant ......................... 2-1
Refrigerant Piping ................... 2-1
Insulation .......................... 2-2
Suction Line ........................ 2-2
Liquid Line ......................... 2-2
Refrigeration Thermostat ............. 2-3
Defrost Termination ................. 2-3
Defrost Sequences ................... 2-3
Merchandiser Electrical Data .......... 2-4
Electrical Connections ................ 2-4
Field Wiring ........................ 2-4
Identification of Wiring ............... 2-4
Wiring Color Code .................. 2-4
DRIP PIPING AND SPLASHGUARDS
Waste Outlet ....................... 3-1
Installing Drip Piping................. 3-1
Sealing Splashguard to Floor .......... 3-1
START UP / OPERATION
Start up ............................ 4-1
Stocking ........................... 4-1
Optional Shelving ................... 4-1
Accessories ......................... 4-2
Load Limits ........................ 4-2
Installing FDA/NSF Thermometer ........ 4-2
MAINTENANCE
Care and Cleaning ................... 5-1
Cleaning Honeycomb Assemblies ....... 5-2
Removing Return Air Grille ........... 5-3
Cleaning Coils ...................... 5-4
Removing Scratches from Bumper ...... 5-4
SERVICE
Replacing Fan Motors and Blades ...... 6-1
Replacing Fluorescent Lamps .......... 6-2
Replacing Lamp Holders and End Caps.. 6-2
Replacing Ballasts ................... 6-3
Repairing Aluminum Coils ............ 6-4
WARRANTY
TABLE OF CONTENTS
IMPORTANT
KEEP 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
© 2018 Hussmann Corporation

P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com
iv
REVISION HISTORY
REVISION E
1. Added Coil Cleaning note, Page 5-4
REVISION D
1. Updated California Warning
REVISION C
1. Revised Refrigerant, Page 2-1 UL
Listing/ Fed State Reg, Page1-1
REVISION B
1. Added Proposition 65 Warning
Statement
REVISION A
1. Revised to Excel, page 1-2, 1-3, 1-4, 2-1,
2-3, 3-1, 3-2, 4-2, 5-2.
REVISION HISTORY — Original Issue
This warning does not mean that Hussmann products
will cause cancer or reproductive harm, or is in
violation of any product-safety standards or
requirements. As clarified by the California State
government, Proposition 65 can be considered more of
a‘right to know’ law than a pure product safetylaw.
When used as designed, Hussmann believes that our
products are notharmful. We provide the Proposition
65 warning to stay in compliance with California State
law. It is your responsibility to provide accurate
Proposition 65 warning labels to your customers when
necessary. For more information on Proposition 65,
please visit the California State government website.
August 31, 2018

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E 1-1
Medium Temperature Excel
NSF LISTING
These merchandisers are manufactured to meet
ANSI / UL 471 standard requirements for
safety. Proper installation is required to main-
tain this listing. Near the serial plate, each case
carries a label identifying the type of conditions
for which the merchandiser was tested.
ANSI/NSF-7 Type I – Display
Refrigerator / Freezer Intended for 75°F /
55%RH Ambient Application
ANSI/NSF-7 Type II – Display
Refrigerator / Freezer Intended for 80°F /
55%RH Ambient Application
ANSI/NSF-7 – Display Refrigerator
Intended for Bulk Produce
FEDERAL / STATE REGULATION
These merchandisers, at the time they are
manufactured, meet all federal and state /
provincial regulations.
MODEL DESCRIPTION
The D5XRRI and D5XRRIS models are
designed for installation against an opening in
the cooler wall. The merchandisers are open at
the rear. Once installed, product can be rolled
directly from the cooler through the rear of
the merchandiser into the refrigerated display
area.
The D5XRRI is a self-supporting model with
the canopy and front sections connected by
welded end supports.
The D5XRRIS is manufactured in two sections:
a Coil Package and a Front Package. The coil
package is to be suspended against the cooler
wall, above the opening, from an adequate
supporting structure in the store. The front
package completes the D5XRRIS model once
it has been aligned with the coil package and
anchored to the floor.
LOCATION
These merchandisers are designed for displaying
products in air conditioned stores where
temperature is maintained at or below the
ANSI/NSF-7 specified level and relative
humidity is maintained at or below 55%.
Like other merchandisers, these are sensitive to
air disturbances. Air currents passing around
cases 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 proper
temperature. This means that from the time
the product is received, through storage, prepa-
ration and display, the temperature of the product
must be controlled to maximize the life of the
product.
INSTALLATION
Do NOT stand or walk on top of
merchandiser because. Do not place items
or flammable materials atop the unit.

1-2 InstallatIon
P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com
SHIPPING DAMAGE
All equipment should be thoroughly examined
for shipping damage before and during unloading.
This equipment has been carefully inspected at
our factory. Any claim for loss or damage must
be made to the carrier. The carrier will provide
any necessary inspection reports and/or claim
forms.
Apparent Loss Or Damage
If there is an obvious loss or damage, it must
be noted on the freight bill or express receipt
and signed by the carrier’s agent; otherwise,
carrier may refuse claim.
Concealed Loss Or Damage
When loss or damage is not apparent until
after equipment is uncrated, retain all packing
materials and submit a written request to the
carrier for inspection, within 15 days.
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.
MERCHANDISER ENDS
Ends for the D5XRRI and D5XRRIS rear
load dairy models are shipped separately to
be field installed after the merchandisers are
installed in the cooler wall. Refer to separate
instructions shipped with the ends.
SHIPPING BRACES
Move the merchandiser as close as possible
to its permanent location and then remove all
packaging. Check for damage before discard-
ing packaging. Remove all separately packed
accessories such as kits and shelves.
The D5XRRI is top-heavy and must be
supported and moved with care at all times
until it has been securely anchored. It must be
supported while it is being unfastened from
the skid and when it is removed from the skid.
Once the skid has been unfastened, never leave
the merchandiser unsupported or unattended
until it has been anchored.
Do NOT remove shipping braces until
the merchandisers are positioned
for installation. Once unfastened,
NEVER LEAVE THE MERCHANDISER
UNSUPPORTED OR UNATTENDED
until it has been anchored.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E 1-3
Medium Temperature Excel
Levels
Shim
LEVELING
Merchandisers must be installed level to ensure
proper operation of the refrigeration system
and to ensure proper drainage of defrost
water. When leveling merchandisers, use a
carpenter’s level as shown. Leveling shims are
provided with each merchandiser for use if
needed. The shims are long enough to allow
leveling of adjoining merchandisers at the
same time using only one shim.
NOTES:
• Begin lineup leveling from The highesT
poinT of The sTore floor.
• If shimming two corners, check to see if a shim
is needed in the center of the case. If a gap exists
between the support rail of the case and the
floor, a shim should be placed in the center.

1-4 InstallatIon
P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com
INSTALLING D5XRRIS
Overview
The coil package must be suspended above the
cooler wall opening from an adequate support
structure. It is imperative that both the meth-
od and the materials used to suspend the coil
package be of sufficient strength to support
the coil package.
These models are designed for use with roll-in
carts or free-standing (unattached) shelving.
DISCLAIMER: These methods of securing
the coil package are suggestions only. It is the
responsibility of the store designer, installer
and end user to ensure the store’s structural
capacity. Hussmann assumes no liability for
consequences resulting from failure of store
structure or material used in installation.
Two 15/8x 15/8inch (41 x 41 mm) channel
struts are provided for hanging the coil pack-
age. These struts extend the full length of the
case and are bolted to the case at the factory.
Use 1/2in. (12.7 mm) clamp nuts to secure the
hanging rods to the struts. Although these
struts allow flexibility in hanging rod location,
the end support rods must be within 12in.
(305mm) of the coil package end. For a 12ft
(3658 mm) coil package, the center hanging
rods must be within 12 in. (305mm) of the
center of the merchandiser.
Hanging Support Spacing
Case Coil Minimum Number of
Length Package 1/2in. dia. (12.7 mm)
ft (mm) Weight Threaded Drop
lb (kg) Rods Required
8 (2438) 485 (220) 4
12 (3658) 750 (340) 6
Cantilevered “I” Beam
Store Joist
Field Supplied
Suspending Rods
Channel Struts
Coil Package

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E 2-1
Medium Temperature Excel
REFRIGERANT
The correct type of refrigerant will be stamped
on each merchandiser’s serial plate. The
merchandiser refrigeration piping is leak test-
ed, factory sealed and pressurized. Before
making refrigeration hookups, depress the uni-
versal line valve to ensure that coils have main-
tained pressure during shipment. When using
high glide refrigerants (e.g., R-407A, R-448A),
if superheat needs to be adjusted, use the evap-
orator pressure and subtract the dew point
from the coil outlet refrigerant temperature to
measure the superheat level.
REFRIGERANT PIPING
Connection Location
The refrigerant line connections are at the left-
hand end of the merchandiser (as viewed from
the front).
After connections have been made, seal this
outlet thoroughly. Seal both the inside and the
outside. We recommend using an expanding
polyurethane foam insulation.
Multiplexing
Multiplex piping must be run above the top of
the coil package in the area shown. Observe
proper suction pipe joining practices and
insulate all suction piping outside the merchandiser
to prevent drippage from condensate.
Line Sizing
Refrigerant lines should be sized as shown on
the refrigeration legend that is furnished for
the store or according to ASHRAE guide-
lines. Refer to the information on the next
page for branch line piping of Hussmann
Equipment.
Oil Traps
P-traps (oil traps) must be installed at the base
of all suction line vertical risers.
Pressure Drop
Pressure drop can rob the system of capacity.
To keep the pressure drop to a minimum, keep
the refrigerant line run as short as possible
using a minimum number of elbows. Where
elbows are required, use long radius elBows
only.
REFRIGERATION / ELECTRICAL
Refrigeration lines are under pressure
and should be depressurized before
attempting to make any connections.
When brazing pipes, be sure to use
the insulation blanket
shipped with the case
to prevent damage to the case.
CAUTION
!
WARNING
!
C
O
O
L
E
R
W
A
L
L
Piping Area
Coil Fan

2-2 RefRIgeRatIon / electRIcal
P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com
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 objectionable
or lines are exposed to ambient conditions.
SUCTION LINE
• Pitch in direction of flow.
• May be reduced by one size at one third of
case run load and again after the second
third. Do not reduce below the case suction
line size.
• Merchandiser suction lines should enter at
the top of the branch line.
LIQUID LINE
• May be reduced by one size after one half
the case run load. Do not reduce below the
case liquid line connection size.
• Take-offs to merchandiser liquid lines
should exit the bottom of the branch liq-
uid line. Provide an expansion loop for
each evaporator take-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 Loop
3-in. (76 mm)
Liquid Line Take Off

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E 2-3
Medium Temperature Excel
REFRIGERATION THERMOSTAT
The bulb for the optional refrigeration thermostat
is located approximately 2 in. (51 mm) in front
of the coil and 6 ft (1829 mm) from the right-
hand end (facing front) of the case. The option-
al refrigeration thermostat is located 4 1/2ft
(1372mm) from the right-hand end.
DEFROST TERMINATION
Rear load dairy cases are designed for time
terminated defrost only. Refer to the
merchandiser data sheet shipped with this
manual for correct settings.
DEFROST SEQUENCES
These merchandisers require defrost cycles
for proper operation. Refer to the data
sheets for application data.
The Time Clock initiates defrost. The evapo-
rator fans continue to circulate air across the
evaporator coil, melting any frost build-up.
Defrost must be time terminated.
— LOCK OUT / TAG OUT —
To avoid serious injury or death from electri-
cal shock, always disconnect the electrical
power at the main disconnect when servicing
or replacing any electrical component. This
includes, but is not limited to, such items as
doors, lights, fans, heaters, and thermostats.
Optional Refrigeration Thermostat
Optional
Refrigeration
Thermostat
Bulb

2-4 RefRIgeRatIon / electRIcal
P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com
MERCHANDISER ELECTRICAL DATA
Merchandiser data sheets are included with this
manual. The data sheets provide merchandiser
electrical data, electrical schematics, parts lists
and performance data. Refer to the merchandiser
data sheets and merchandiser serial plate for
electrical information.
ELECTRICAL CONNECTIONS
All wiring must be in compliance with NEC
and local codes. All electrical connections are
to be made in the electrical raceway or Handy
Box.
FIELD WIRING
Field wiring must be sized for component
amperes stamped on the serial plate. Actual
ampere draw may be less than specified. Field
wiring from the refrigeration control panel to
the merchandisers is required for defrost
termination thermostats and for optional
refrigeration thermostats. When multiple
merchandisers are on the same defrost circuit,
the defrost termination thermostats are wired
in series. always check the serial plate
for component amperes.
IDENTIFICATION OF WIRING
Leads for all electrical circuits are identified
by colored plastic bands. These bands corre-
spond to the color code sticker (shown below)
located inside the merchandiser’s raceway.
WIRING COLOR CODE
Leads for all electrical circuits are identied by a colored plastic band:
neutral wire for each circuit has either White insulation or a White plas-
tic sleeve in addition 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 120V
BRown ....... fan motoRs ReD ........DefRost heateRs 208V
gReen*....... gRounD *eItheR coloReD sleeVe oRcoloReD InsulatIon
ELECTRICIAN NOTE: Use copper conductor wire only.
CASE MUST BE GROUNDED
Optional T8 rail lights and
optional Quick Connect spray hose
or eld-installed misting system
shall not be used together.
CAUTION
!
WARNING
!
these aRe maRkeR coloRs wIRes maY VaRY.
ALWAYS CHECK THE SERIAL PLATE FOR
COMPONENT AMPERES

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E 3-1
Medium Temperature Excel
WASTE OUTLET
A waste outlet is located at the back of the
upper fan plenum, 1 1/4in. (32mm) from
either end of the merchandiser.
It is the responsibility of the installing contractor
to supply and connect drip pipe external to
the case. External drip pipe may be flexible or
rigid.
INSTALLING DRIP PIPING
Poorly or improperly installed drip pipes can
seriously interfere with the merchandiser’s
operation and result in costly maintenance and
product losses. Please follow the recommenda-
tions listed below when installing drip pipes to
ensure proper installation.
1. Never use drip piping smaller than the
nominal diameter of the piping inside the
merchandiser.
2. When connecting drip piping, the “water
seal” must be used as part of the drip
piping to prevent air leakage or insect
entrance. Never use two water seals in
series 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 of
flow. There should be a minimum pitch of
1/4in. perft (20mm per 1m).
4. Avoid long runs of drip piping. Long runs
make it impossible to provide the pitch
necessary for good drainage.
5. Provide a suitable air break between
flood rim of the floor drain and out-
let of drip pipe. To meet code on
low base cases, it may be necessary
to install a field-supplied drip pipe
reducer. An alternative is to cut the
last section of drip pipe at an angle.
6. Prevent drip pipes from freezing:
A. Do NOT install drip pipes in contact
with uninsulated suction lines. Suction lines
should be insulated with a nonabsorbent
insulation material.
B. Where drip pipes are located in dead air
spaces, such as between cases or between a
case and a store wall, provide means to
prevent freezing.
SEALING SPLASHGUARD TO FLOOR
Stainless steel splashguards may be sealed to
the floor using a vinyl cove base trim. The size
of trim needed will depend on how much 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 will
be necessary. This is to ensure a good and
secure installation.
2. Apply a good contact cement to the cove
trim and allow proper drying time according
to the directions supplied with the cement.
DRIP PIPING AND SPLASHGUARDS
D5XRRIS
17 1/2
(444)
19 7/8
(504)
Waste Outlet at End
(connect drip pipe here)

3-2 DRIP PIPIng anD sPlashguaRDs
P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com
3. Install the trim to the splashguard so that it
is lying flush with the floor. The Cove Trim
may be sealed to the floor using a silicone
sealer.
Cove Trim
Cement
Splashguard
Apply Cove Base Trim to Splashguard

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E 4-1
Medium Temperature Excel
START UP / OPERATION
START UP
See the specific model’s Technical Data Sheet
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 evaporator
coil and pre-set non-adjustable thermostat-
ic expansion valve (TEV). No adjustment is
required. Donot remove the cap on the
tevs.This cap is to be removed only for
valve disassembly. Removal of this cap during
case maintenance will result in refrigerant loss
unless the system is first isolated and the
refrigerant recovered.
The TEV has been factory set to provide the
recommended performance settings as specified
on the merchandiser data sheets.
STOCKING
Product should NOT be placed in merchandis-
ers until merchandiser is at proper operating
temperature.
Proper rotation of product during stocking is
necessary to prevent product loss. Always
bring the oldest product to the front and set
the newest to the back.
air discharge and reTurn flues musT
remain open and free of oBsTrucTion aT
all Times to provide proper refrigeration and
air curtain performance. Do not allow prod-
uct, packages, signs, etc. to block these grilles.
Close-off curtains at the rear of the D5XRRI
and D5XRRIS must be kept closed except
when stocking to avoid adverse refrigeration
performance.
OPTIONAL SHELVING
Product display shelving, lighted or unlighted,
may be added to these cases with the addition
of shelf support kits. These modular kits may
be installed in the entire length or any 4ft
(1219mm) section.
Shelf Supports
Two optional shelf support types are available.
The stub shelf supports attach to the top coil
package for one or two rows of shelves. The
other shelf supports are 60in. (1524mm) tall,
bolted to the floor, and support up to four
rows of shelves.
An 8ft (2438mm) merchandiser has two col-
umns of shelves; a 12ft (3658mm)
merchandiser has three columns of shelves.
Shelves
Optional shelving is available in 20in.
(508mm), 22in.(559mm), and 24in.
(610mm) size. If using more than one size
shelf in a column, the smallest shelf must be
the highest
removal of the tev cap will result in
refrigerant loss unless the system is first
isolated and the refrigerant recovered.
CAUTION
!
WARNING
!

4-2 staRtuP / oPeRatIon
P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • WWW.HUSSMANN.COM
ACCESSORIES
Various display arrangements can be achieved
by through combinations of shelves and
mobile dairy carts. These carts are designed
for quick loading, maneuverability, and sales
appeal. After loading, the carts glide into the
case from the rear. They can be positioned
under optional shelving.
Do not use non-approved shelving, baskets,
display racks, or any accessory that could
hamper air curtain performance. Consult your
Hussmann representative when in doubt about
the effects of third-party accessories.
LOAD LIMITS
Shelf life of perishables will be short if load
limit is violated. atno time shoulD cases be
stockeD beyonD the loaD limits inDicateD.
Donot block honeycomb.
INSTALLING FDA/NSF REQUIRED
THERMOMETER
The following pages provide the same informa-
tion that ships with the thermometer.
This requirement does not apply to display
refrigerators intended for bulk produce (refer to
page 1-1).
Please note that the tape cannot be exposed
after installation.
D5XRRIS
Cold Air
Curtain
Load Limit

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E 4-3
Medium Temperature Excel
Suggested Mounting Locations
in Multi-deck Merchandisers
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
This is an NSF-7 &
US FDA Food Code
Required
Thermometer
Suggested Mounting Locations
in Single Deck Glass Front
Impact Merchandisers
Hussmann P/N 0429971_C 10/2007
Thermometer – Hussmann Part TM.4911251
– Acrylic
Package Guard,
Facing Out
– Inside
End Panel
– Shelf
Price Tag
Molding
– Return Air Grille
Double Stick Tape
Flexible Plastic
Fits in Price Tag
Moldings

4-4 staRtuP / oPeRatIon
P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • WWW.HUSSMANN.COM
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/ ]
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 locations
provided herein are possible
locations. It is the responsibility of
the purchaser / user to determine
the location with 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 plsatic 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 officals.

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
P/N 0485219_E 5-1
Medium Temperature Excel
CARE AND CLEANING
Long life and satisfactory performance of
any equipment is dependent upon the care it
receives. To ensure long life, proper sanita-
tion and minimum maintenance costs, these
cases should be thoroughly cleaned, all debris
removed and the interiors washed down, weekly.
The store floor will be the interior display area
of the rear roll-in dairy cases. Since milk and
other spillage will occur, the floor should be
cleaned and sanitized at least once each week.
When cleaning, use caution to prevent water
or other liquids from entering the fan vents on
the interior side of the front assembly.
Exterior Surfaces
The exterior surfaces must be cleaned with a
mild detergent and warm water to protect and
maintain their attractive finish. never us e
abras i v e cleansers or scouring paDs.
Interior Surfaces
The interior surfaces may be cleaned with most
domestic detergents, ammonia based cleaners
and sanitizing solutions with no harm to the
surface.
Do NOT Use:
• Abrasive cleansers and scouring pads, as
these will mar the finish.
• A hose on lighted shelves or submerge the
shelves in water.
• Solvent, oil or acidic based cleaners on any
interior surfaces.
• Coarse paper towels on coated glass.
• Ammonia-based cleaners on acrylic parts.
• A hose on rail lights, canopy lights or any
other electrical connection.
• steam o r h i g h water pressure hoses
to wash t h e i n terior.These will
desTroy The cases’ sealing causing leaks
and poor performance.
Do:
• Remove the product and all loose debris to
avoid clogging the waste outlet.
• Store product in a refrigerated area such as a
cooler. Remove only as much product as can
be taken to the cooler in a timely manner.
• First turn off refrigeration, then disconnect
electrical power.
• Sweep the floor of the case.
• Thoroughly clean all surfaces with soap and
hot water. Donot use s t e a m or high
water p r e s sure hoses to wash the
inter i o r .These will desTroy The cases’
sealing causing leaks and poor perfor-
mance.
• Take care to minimize direct contact between
fan 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 cases to dry before resuming operation.
• Wipe down lighted shelves with a damp
sponge or cloth so that water does not enter
the light channel. Donot use ahose or
submerge shelves in water.Wipe dry.
• After cleaning is completed, turn on power
to the merchandiser.
MAINTENANCE
Product will be degraded and may spoil if
allowed to sit in a non-refrigerated area.
Prevent injury.
alwaYs shut PoweR off
during cleaning process.

5-2 maIntenance
P/N 0485219_E U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • WWW.HUSSMANN.COM
CLEANING HONEYCOMB ASSEMBLIES
Upper Honeycomb
Honeycombs should be cleaned at least every
six months. Dirty honeycombs will cause cases
to perform poorly. The honeycombs may
be cleaned with a vacuum cleaner. Soap and
water may be used if all water is removed from
the honeycomb cells before replacing. Be care-
ful not to damage the honeycombs.
1. Remove interior roof panel to free honey-
comb.
2. Clean and dry the honeycomb.
3. After cleaning, replace honeycomb and
interior roof panel.
Lower Honeycomb
Starting at one lower end of the honeycomb,
use a needle-nose plier to carefully compress
and lift a corner. Work along the edge a few
cells at a time until the honeycomb is free of
the retainer. Clean and dry the honeycomb,
then replace in reverse order.
Note that a damaged honeycomb must be
replaced to maintain refrigeration efficiency.
Honeycomb
— LOCK OUT / TAG OUT —
To avoid serious injury or death from electri-
cal shock, always disconnect the electrical
power at the main disconnect when servicing
or replacing any electrical component. This
includes, but is not limited to, such items as
doors, lights, fans, heaters, and thermostats.