
Table of Contents
P/N 424382A
INSTALLATION
NSF Certification . . . . . . . . . . . . . . . . . . 1-1
Location . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Shipping Damage . . . . . . . . . . . . . . . . . . . 1-1
Exterior Loading . . . . . . . . . . . . . . . . . . . 1-1
Merchandisers Shipped
with End Installed . . . . . . . . . . . . . . . . . 1-2
Shipping Braces . . . . . . . . . . . . . . . . . . . . 1-2
Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Heater Mounting . . . . . . . . . . . . . . . . . . . 1-3
Joining Instructions . . . . . . . . . . . . . . . . . 1-3
Splashguard Bracket and
Joint Support . . . . . . . . . . . . . . . . . . . . . 1-5
Offsetting Bumpers and Top Rail . . . . . . . 1-5
REFRIGERATION / ELECTRICAL
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Refrigerant Piping . . . . . . . . . . . . . . . . . . 2-1
Insulation . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Suction Line . . . . . . . . . . . . . . . . . . . . . . 2-2
Liquid Line . . . . . . . . . . . . . . . . . . . . . . . 2-2
Refrigeration Thermostat . . . . . . . . . . . . . 2-2
Defrost Termination Thermostat . . . . . . . . 2-2
Defrost Sequences . . . . . . . . . . . . . . . . . . 2-2
Merchandiser Electrical Data . . . . . . . . . . 2-3
Electrical Connections . . . . . . . . . . . . . . . 2-3
Field Wiring . . . . . . . . . . . . . . . . . . . . . . . 2-3
Identification of Wiring . . . . . . . . . . . . . . 2-4
DRIP PIPING AND SPLASHGUARDS
Waste Outlet and Water Seal . . . . . . . . . . 3-1
Installing Drip Piping . . . . . . . . . . . . . . . . 3-1
Installing Splashguards . . . . . . . . . . . . . . 3-2
Sealing Splashguard to Floor . . . . . . . . . . 3-2
START UP / OPERATION
Start up . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 4-1
Stocking . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Multi-deck Shelf Alignment . . . . . . . . . . . 4-2
Multi-deck Shelf Configuration . . . . . . . . 4-2
MAINTENANCE
Care and Cleaning . . . . . . . . . . . . . . . . . . 5-1
Cleaning Under Merchandiser . . . . . . . . . 5-2
Removing Scratches from Bumper . . . . . . 5-2
Cleaning Honeycomb Assemblies . . . . . . 5-2
Removing Interior Back Panels . . . . . . . . 5-2
SERVICE
Replacing Evaporator Fan Motors
and Blades . . . . . . . . . . . . . . . . . . . . . . . 6-1
Replacing Ambient Muffin Fan Assembly 6-3
Replacing Reheat Heaters . . . . . . . . . . . . 6-4
Replacing Modular Electric
Defrost Heater . . . . . . . . . . . . . . . . . . . 6-5
Replacing Anti-Sweat Heater . . . . . . . . . 6-6
Replacing Multi-glass Assembly with
Anti-Sweat Heater . . . . . . . . . . . . . . . . . 6-7
Replacing Electronic Ballasts . . . . . . . . . . 6-8
Replacing Fluorescent Lamps . . . . . . . . . 6-8
Replacing Lamp Holders and End Caps . 6-9
Replacing Damaged Drain Fitting . . . . . . 6-9
Repairing Aluminum Coils . . . . . . . . . . . . 6-10
WARRANTY
Rev . A:
• Changed application to frozen meat and seafood
throughout.
• Added NSF®certification.
IMPORTANT
KEEP IN STORE FOR FUTURE REFERENCE
Quality that sets industry standards.
This merchandiser conforms to the
Commercial Refrigerator Manufacturers Association
Health and Sanitation Standard
CRS-S1-96
and is NSF
®
12999 St. Charles Rock Road • Bridgeton, MO 63044 U.S.A. • (314) 291-2000 • FAX (314) 298-4767
®
certified.

Frozen Meat and Seafood
P/N 424382A 1-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in 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 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%.
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.
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. T
HEY ARE NOT STRUCTURALLY
DESIGNED TO SUPPORT EXCESSIVE EXTERNAL
LOADING
such as the weight of a person. Do not
place heavy objects on the case.
INSTALLATION
Do not walk or put heavy objects on case.
CAUTION
!

1-2 INSTALLATION
P/N 424382A
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. T
HEREFORE, BE SURE TO REPLACE
THESE BOLTS WITH THE SHORTER BOLTS PROVIDED
.
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 discarding 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. Ice may
build up from defrost water not draining out of
merchandiser if merchandiser is not leveled.
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:
• B
EGIN 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.
Do NOT remove shipping braces until the
merchandisers are positioned
for installation.
NOTE: Do not place levels
on Display Pans or
on Shelves.
!
WARNING
Levels
Serial Plate
Shim
Front of Merchandiser

Frozen Meat and Seafood
P/N 424382A 1-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
HEATER MOUNTING
The F2 models use two types of heater that can
vibrate loose during shipment. Verify that each
defrost heater is secure in its bracket and does not
touch the bottom liner. Also verify that each reheat
heater is secure in its brackets and the mounting
plate horizontal across the air flow. Refer to
Section 6 – Service for location and access.
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.
A
LL JOINTS MUST BE AIR-TIGHT TO PREVENT
FORMATION OF ICE OR CONDENSATION
.
Prepare Case
1. Check to be sure that merchandisers are level
and that the factory-installed nut retainers and
alignment pins are in place. Locate Joint Kit
and compare contents to 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 from the right end. To
remove a panel, lift it up from its bottom edge
and out. No tools are required.
Apply Gaskets
1. Apply 1
5
/8
in. (31 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 1
5
/8 in. (31 mm) gasket to cover
foam-to-metal gap at rear of case and across
the top as shown. Be sure to overlap gaskets
as shown on next page. Check to be sure that
there are no gaps between gasket and merchandiser.
Fasten Cases
1. Move the second merchandiser into position
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
merchandisers together at rear. Do not
tighten fully.
4. Draw canopies together using cap screws, flat
washers, lock 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.
Make certain defrost heaters are secured
and do not touch bottom liner.
Make certain mounting plates for reheat
heaters are horizontal across air flow
and reheat heaters are secure.
!
WARNING

1-4 INSTALLATION
P/N 424382A
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.
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.
A
D
C
B
Butyl Tape
Alignment
Pins
Silicone
Field Supplied
Front
Detail

Frozen Meat and Seafood
P/N 424382A 1-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
SPLASHGUARD BRACKET
AND JOINT SUPPORT
Install Splashguard Bracket
Position splashguard brackets to the merchandiser
and level to the floor. Each bracket has a 1
1
/2 in.
(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 glass trim helps to
disguise the joint locations, giving the lineup a
smoother look.
1. Locate 2 ft (610 mm) starter bumpers and glass
trim. They are shipped with the left-end kit.
2. Remove factory installed glass trim and
bumpers from cases as follows:
a
. Standard plastic glass trim is friction fit.
Start at left end and lift up, moving to right
end. Pry tools will damage trim.
b. Remove upper and lower bumpers by
pulling bumper away from bumper retainers. Be careful not to misplace the internal
joint trims from the upper bumpers.
3. Starting at the left end of the line up, install the
upper bumper starter section first. To install:
a. Position internal joint trims so that the first
is flush to the left-end panel and the second
is centered between the starter bumper and
the full length bumper as shown.
b. Install full length bumpers and internal
trims offset across joints. Make sure that
no gaps exist between sections. Continue
installing the upper bumpers the length of
the line up. Do NOT install the last bumper
section at this time. This section will be
installed in the last step.
Bracket
Base of Case
Pull
Upper
Bumper
Screw
Internal
Joint Trim
Joint Support

1-6 INSTALLATION
P/N 424382A
4. Install lower bumper starter and full length
lower bumpers by simply pushing them into
place. There are no internal joint trims on
lower bumpers.
5. Return to left end of line up and position
starter section of glass trim.
6. Apply field- supplied silicone sealant to underside of short glass trim. Push short glass trim
section down over glass and toward end of
case. Press firmly in place.
7. Install full length glass trims using the same
procedures. Continue installing glass trims
along the length of the line up. Do NOT install
last section at this time.
Note: If part of a section of plastic glass trim
becomes loose, remove that section and re-install.
Trying to re-install only the popped part may not
secure the trim, and may damage the trim.
8. Once all except the last sections of upper
bumper and glass trim have been installed,
refrigerate the case line up for at least six (6)
hours. The last sections of upper bumper
and glass trim should be kept inside a
refrigerated case or cooler during this time
to allow the bumpers and trim to contract.
9. Go to right end of case line up and tap glass
trim and bumpers to close any gaps.
10. Measure and cut last section of bumpers and
glass trim. Use a miter box and fine-tooth saw
to cut last bumpers and glass trim to length.
Install the last sections.
Apply field-supplied silicone sealant to underside of end trim and press firmly in place.
Note: To join unlike fixtures, or like fixtures
operating at different temperatures, a 1
1
/2 in.
(38 mm) partition kit is required. Instructions for
installing this partition are included with the kit.
Starter
Bumper
Retainer
Merchandiser
Joint
Full Length
Bumper
Internal Joint Trims
Bumper
Miter Box

Frozen Meat and Seafood
P/N 424382A 2-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
REFRIGERANT
The correct type of refrigerant will be stamped
on each merchandiser’s serial plate. The case
refrigeration piping is leak tested, factory
sealed and pressurized. Before making refrigeration hookups, depress the universal line
valve to ensure that coils have maintained
pressure during shipment.
REFRIGERANT PIPING
Connection Location
The refrigerant line connections are at the righthand end of the merchandiser (as viewed from the
front) beneath the display pans. A sticker marks
the location of the connection “pod.” The installer
must saw a hole through the pod to exit the case.
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
Piping of merchandisers operating on the same
refrigeration system may be run from merchandiser to merchandiser. D
O NOT RUN REFRIGERANT
LINES THROUGH MERCHANDISERS THAT ARE
NOT ON THE SAME REFRIGERATION SYSTEM
BRANCH
as this may result in poor refrigeration
control and compressor failure.
Interconnecting piping inside the merchandiser
must be located as shown below to allow room for
lifting the hinged fan plenums and for clearance
beneath the display pans. Or the interconnecting
piping may be run outside the case in the raceway
area shown.
Line Sizing
Refrigerant lines should be sized as shown on the
refrigeration legend that is furnished for the store
or according to ASHRAE guidelines. Refer to
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
merchandiser to prevent damage to the
plastic case bottom.
!
WARNING
CAUTION
!
Pan
Pod
Piping
Locations
Fan Plenum