Hussmann EXCEL PW Supplement

Medium Temperature
Bulk Produce and Bakery
Merchandisers
IMPORTANT
Keep in store for
future reference!
Installation &
Service Manual
Shipped With Case Data Sheets
P/N 0518258_D
January 2022
Spanish P/N 0538840

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.

P/N 0518258_D iii
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 1-800-890-2900
www.hussmann.com
© 2022 Hussmann Corporation
INSTALLATION
NSF Certification . . . . . . . . . . . . . . . . . . . 1-1
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Shipping Damage . . . . . . . . . . . . . . . . . . . . 1-1
Exterior Loading . . . . . . . . . . . . . . . . . . . . 1-2
Merchandisers Shipped with End Installed 1-2
Shipping Braces . . . . . . . . . . . . . . . . . . . . . 1-2
Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Joining Instructions . . . . . . . . . . . . . . . . . . 1-2
Splashguard Bracket and Joint Support . . 1-6
Offsetting Bumpers and Top Rail . . . . . . . 1-6
Installing Partitions . . . . . . . . . . . . . . . . . . 1-8
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 Thermostat . . . . . . . . 2-3
Defrost Sequences . . . . . . . . . . . . . . . . . . . 2-3
Merchandiser Electrical Data . . . . . . . . . . 2-4
Electrical Connections . . . . . . . . . . . . . . . . 2-4
Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Identification of Wiring . . . . . . . . . . . . . . . 2-4
DRIP PIPING AND SPLASHGUARDS
Waste Outlet and Water Seal . . . . . . . . . . . 3-1
Installing Drip Piping . . . . . . . . . . . . . . . . 3-1
Installing Splashguards and
Lower Front Panels . . . . . . . . . . . . . . . . . 3-2
Sealing Splashguard to Floor . . . . . . . . . . 3-3
Installing Optional Stainless Steel
Splashguards . . . . . . . . . . . . . . . . . . . . . . 3-3
START UP / OPERATION
Start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Stocking . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Installing FDA/NSF
Required Thermometer . . . . . . . . . . . . . . 4-1
MAINTENANCE
Care and Cleaning . . . . . . . . . . . . . . . . . . . 5-1
Cleaning Honeycomb Assemblies . . . . . . . 5-3
Cleaning Stainless Steel Top Rails . . . . . . 5-3
Removing Interior Back Panels . . . . . . . . . 5-3
Cleaning Coils . . . . . . . . . . . . . . . . . . . . . 5-4
Removing Scratches from Bumper . . . . . . 5-4
Maintaining Fluorescent Lamps . . . . . . . 5-4
SERVICE
Replacing Fan Motors and Blades . . . . . . 6-1
Replacing Fluorescent Lamps . . . . . . . . . . 6-2
Replacing Lamp-holders and End Caps . . 6-2
Replacing Electronic Ballasts . . . . . . . . . . . 6-3
Replacing Damaged Drain Fitting . . . . . . 6-3
Repairing Aluminum Coils . . . . . . . . . . . . 6-4
WARRANTY
TABLE OF CONTENTS
P/N 0518258_C iii
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 1-800-890-2900
www.hussmann.com
© 2022 Hussmann Corporation
®
®
Cleaning Under Merchandisers . . . . . . . . 5-4

P/N 0518258_D
iv RefRigeRation / electRical
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
REVISION HISTORY
REVISION D – January 2022 - Added Coil
Cleaning Note, Page 5-4.
REVISION C – October 2013 - Added warn-
ing box, page 1-1; Added Maintaining
Fluorescent Lamps, page 5-4; Revised
Replacing Fluorescent Lamps, page 6-2.
REVISION B – December 2012 - Added Coil
Cleaning, Page 5-4.
REVISION A – November 2010
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

P/N 0518258_D 1-1
Produce & Bakery
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Medium Temperature
P/N 0518258_C 1-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
NSF CERTIFICATION
These merchandisers are manufactured to meet
ANSI / National Sanitation Foundation
(NSF®) Standard #7 requirements. Proper
installation is required to maintain certification.
Near the serial plate, each case carries a label
identifying the type of application for which
the case was certified.
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
LOCATION
These merchandisers are designed for display-
ing 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%.
Placing refrigerated merchandisers in direct
sunlight, near hot tables or near other heat
sources could impair their efficiency.
Like other merchandisers, these are sensitive to
air 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 proper
temperature. This means that from the time the
product is received, through storage, preparation
and display, the temperature of the product must
be controlled to maximize the life of the product.
The exterior frames on these cases provide
space for air circulation. However, in high
ambient conditions, sweating may still occur.
If this happens install a method of forced
ventilation such as a fan ventilation kit.
Wide Island Fronts
BE SURE TO POSITION WIDE ISLAND MERCHANDISER
FRONTS PROPERLY. The front of wide island
merchandisers is readily identified by the location
of the serial plate (see leveling drawing on next
page). Since all electrical and refrigeration
connections will be made at the front side, the
fronts will need to be positioned according to
the store plan layout.
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 mate-
rials and submit a written request to the carrier
for inspection, within 15 days.
INSTALLATION
Do not walk or put heavy objects on case.
CAUTION

P/N 0518258_D
1-2 RefRigeRation / electRical
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
1-2 INSTALLATION
P/N 0518258_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
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 shipping
brace to the end. If the shipping bolts are
reinserted after removing the brace, they will
extend into the product area. THEREFORE, BE
SURE TO REPLACE THESE BOLTS WITH THE SHORT-
ER BOLTS PROVIDED. NSF requires any bolt or
screw in the product area be capped or cut off if
it has more than three exposed threads.
NOTE:
Be careful not to damage the factory installed
end while moving the case. Make sure that tools
are positioned past the end and beneath the
merchandiser’s support bar.
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.
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 big enough so that you can level
adjoining merchandisers at the same time using
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 merchandiser. If a
gap exists between the support rail of the
merchandiser and the floor, a shim should be
placed in the center.
JOINING INSTRUCTIONS
Sectional construction means that two or more
merchandisers may be joined in line yielding
one long continuous display requiring only one
pair of ends.
ALL JOINTS MUST BE AIR-TIGHT TO PREVENT
FORMATION OF ICE OR CONDENSATION.
Do NOT remove shipping braces until
the merchandisers are positioned
for installation.
WARNING
Do not store items or flammable
materials atop the unit.
Do not walk on case.
CAUTION

P/N 0518258_D 1-3
Produce & Bakery
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Medium Temperature
P/N 0518258_C 1-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Prep Case
1. Check to be sure that merchan-
disers are level and that the
factory-installed nut retainers
and alignment pins are in
place. Locate Joint Kit and
check contents against parts
list.
2. Remove shelves (if installed),
display racks, pans, front shelf
supports and front air grilles
from the right end.
3. Remove the rear panel(s) from
the right end. On multi-deck
cases remove the lower back
panel first. To remove a panel
lift it up from its bottom edge
and out. No tools are required.
Apply Gaskets
1. Apply 1/2in. (13 mm) gasket in
the horizontal recess across the
bottom and up the front of the
merchandiser as shown. Gasket
should cover slots.
2. Apply the 15/8in. (41 mm) gas-
ket to cover foam-to-metal gap
at rear of case and across the
top as shown. Be sure to over-
lap gaskets as shown. Check to
be sure that there are no gaps
between gasket and merchan-
diser.
Levels
Levels
Rear
Serial Plate
Front of
Merchandiser
Leveling Wide Island
Merchandisers
Leveling Single Deck
Merchandisers
NOTE: Do not place levels
on Display Pans or
on Shelves.

P/N 0518258_D
1-4 RefRigeRation / electRical
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
1-4 INSTALLATION
Fasten Cases
1. Move the second merchandiser into posi-
tion against the first. Match the alignment
pins 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 lock
washers provided in the joint kit to draw
the merchandisers together at rear. Do not
tighten fully.
4. Draw canopies of multi-deck wall mer-
chandisers together by inserting threaded
rod through top shoe as shown. Fasten
each end with washers and nuts. Tighten
only until canopies touch.
5. Tighten joints in the order shown (A, B,
C, D) until gaskets are compressed, and
cases join smoothly.
P/N 0518258_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
1 5/8 in. Gasket (41 mm)
1/2 in. Gasket (13 mm)
PW & MWG
Models
B
C
A

P/N 0518258_D 1-5
Produce & Bakery
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
1 5/8 in. Gasket
(41 mm)
1/2 in. Gasket
(13 mm)
Alignment
Pins
B
C
A
Glass
Front
Detail
Tighten in Order Shown
Medium Temperature
P/N 0518258_C 1-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
IMPORTANT
• Do not stretch gasket,
especially around corners.
• Do not butt gaskets;
always overlap them as shown.
• Remove paper backing
after gasket has been applied.

P/N 0518258_D
1-6 RefRigeRation / electRical
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
1-6 INSTALLATION
Seal Merchandisers
1. Apply butyl tape across the bottom joint.
Be sure to extend the tape up the back and
front of the case.
2. Use field-supplied silicone to fill any gaps
between the front support brackets.
SPLASHGUARD BRACKET
AND JOINT SUPPORT
Install Splashguard Bracket
Position splashguard brackets to the merchan-
diser and level to the floor. Each bracket has a
11/2in. (38 mm) slot at the rear of the bracket
where it attaches to the merchandiser. Tighten
screws to secure the brackets.
Install Splashguard Joint Support
Position the joint support across the brackets
as shown above. Fasten with hex head sheet
metal screws.
OFFSETTING BUMPERS AND TOP RAIL
Offsetting the bumpers and top rails helps to
disguise the joint locations, giving the lineup a
smoother look.
1. Locate starter bumpers and top rail. They
are shipped with the left-end kit.
2. Remove factory installed top rails and
bumpers from cases as follows:
P/N 0518258_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
Butyl Tape
Silicone
Field Supplied
Front
Detail
Bracket Base of Case
Joint Support
Screw