Hussmann Impact F6 User manual

Installation &
Operation Manual
Shipped With Case Data Sheets
P/N 0416183C.
Impact Series
February, 2002
F-6 Multi-deck Frozen Food
Wall Merchandisers
Merchandisers
®
IIMMPPOORRTTAANNTT
Keepin storeforfuturereference!

INSTALLATION
NSF Certification . . . . . . . . . . . . . . . . . . . . 1-1
Location . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Shipping Damage . . . . . . . . . . . . . . . . . . . . 1-1
Shipping Braces . . . . . . . . . . . . . . . . . . . . . 1-2
Exterior Loading . . . . . . . . . . . . . . . . . . . . 1-2
Merchandisers Shipped
With End Installed . . . . . . . . . . . . . . . . . . 1-2
Anchoring . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Joining Instructions . . . . . . . . . . . . . . . . . . 1-3
Offsetting Bumpers and Top Rails . . . . . . . 1-3
Splashguard Bracket and Joint Support . . . 1-6
REFRIGERATION / ELECTRICAL
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Refrigerant Piping . . . . . . . . . . . . . . . . . . . 2-1
Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Refrigeration Thermostat . . . . . . . . . . . . . . 2-2
Defrost Termination Thermostat . . . . . . . . . 2-2
Expansion Valve Adjustment . . . . . . . . . . . 2-2
CDA Sensor (Optional) . . . . . . . . . . . . . . . 2-2
Merchandiser Electrical Data . . . . . . . . . . . 2-3
Field Wiring . . . . . . . . . . . . . . . . . . . . . . . 2-3
Electrical Connections . . . . . . . . . . . . . . . . 2-3
Identification of Wiring . . . . . . . . . . . . . . . 2-3
Wiring Color Code . . . . . . . . . . . . . . . . . . 2-3
DRIP PIPING AND SPLASHGUARDS
Waste Outlet and Water Seal . . . . . . . . . . . . 3-1
Installing Drip Piping . . . . . . . . . . . . . . . . . 3-1
Installing Splashguards . . . . . . . . . . . . . . . 3-2
Sealing Splashguard to Floor . . . . . . . . . . . 3-3
START UP / OPERATION
Start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Ambient Air Filters . . . . . . . . . . . . . . . . . . 4-1
Stocking . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Shelf Size and Location . . . . . . . . . . . . . . . 4-1
Standard Shelves . . . . . . . . . . . . . . . . . . 4-1
Mezzanine Shelf . . . . . . . . . . . . . . . . . . . 4-2
Bottom Rack . . . . . . . . . . . . . . . . . . . . . 4-2
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Load Limit Profiles . . . . . . . . . . . . . . . . . . . 4-3
Installing FDA/NSF Required Thermometer 4-3
MAINTENANCE
Care and Cleaning . . . . . . . . . . . . . . . . . . . 5-1
Cleaning Under Merchandisers . . . . . . . . . 5-1
Cleaning Ambient Air Filter . . . . . . . . . . . 5-2
Removing Scratches from Bumper . . . . . . . 5-2
Cleaning Honeycomb Assemblies . . . . . . . . 5-2
Removing Pans and Interior Panels . . . . . . . 5-4
SERVICE
General . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Replacing Fan Motors and Blades . . . . . . . 6-1
Evaporator Fans . . . . . . . . . . . . . . . . . . . 6-2
Non-refrigerated Fans . . . . . . . . . . . . . . . 6-3
Ambient Air Muffin Fans . . . . . . . . . . . . 6-4
Replacing Modular Electric
Defrost Heater . . . . . . . . . . . . . . . . . . . . . 6-5
Replacing Electric Defrost Heater . . . . . . . . 6-6
Replacing Return Air Heater . . . . . . . . . . . . 6-7
Replacing Main Anti-Sweat
(Honeycomb Divider) Heater . . . . . . . . . . 6-8
Replacing Optional Handrail
Anti-Sweat Heater . . . . . . . . . . . . . . . . . . 6-9
Low Temperature
Multi-deck Frozen Food
iii
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.A. • [phone] • FAX [phone]
R
P/N 0416183C

Replacing Fluorescent Lamps . . . . . . . . . 6-10
Replacing Lamp Holders and End Caps . . 6-10
Replacing Electronic Ballasts . . . . . . . . . 6-11
Replacing Damaged Drain Fitting . . . . . . . 6-11
Repairing Aluminum Coil . . . . . . . . . . . . . 6-12
WARRANTY
REVISION C
1. Changed non-refrigerated reversing fans to
non-refrigerated fans, pages 6-3 and 6-4.
P/N 0416183C
iv
Table of Contents (Continued)

1-1
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 tempera-
ture 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 sun-
light, 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 merchan-
disers 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.
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.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
INSTALLATION
Do not walk or put heavy objects on case.
CAUTION
!
Exercise caution at all times when moving
merchandisers with “L” shaped riders.
They are top heavy and should
EVER be left in the vertical position.
WARNING
!

1-2 INSTALLATION
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 acces-
sories such as kits and shelves.
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 LOAD-
ING 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 prod-
uct area. THEREFORE,BE SURE TO REPLACE THESE
BOLTS WITH THE SHORTER BOLTS PROVIDED.
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 merchan-
diser’s support bar.
ANCHORING
Because of the merchandisers' forward projection,
they must be anchored to the floor to prevent them
from tipping forward. Each merchandiser should
be lagged to the floor through its rear skid.
Anchors should be placed approximately 8 to
12 in. (203 mm to 305 mm) from each end and in
the center of the rear skid. Some merchandisers
have holes in the rear skid for this purpose.
Once the merchandisers are properly anchored,
remove shipping braces.
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
12 in. (305 mm) long and 3 in. (76 mm) wide so
that you can level adjoining merchandisers at the
same time using one shim.
P/N 0416183C
Use Levels Here
Shim
Do OT remove shipping braces until the
merchandisers are properly anchored to the
floor. Merchandisers are top heavy and
could tip over causing serious injury.
Merchandisers must be braced before
removing the lag bolts.
WARNING
!

1-3
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. To join like fixtures, a joint kit is
required. To join unlike fixtures, or fixtures of
different temperature applications, an insulated
partition kit is required. Joint and partition kits are
shipped separately; instructions are included with
each kit.
ALL JOINTS MUST BE AIR-TIGHT TO PREVENT
FORMATION OF ICE OR CONDENSATION.
Refer to separate Joint Instruction shipped
with case.
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 short 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:
a.To remove top rails, push rail toward the
back of the case with one hand while lift-
ing the top edge off the light channel with
the other hand. See following drawing.
b.Starting at one end, carefully peel bottom
of top rail free of color panel and set the
rail inside the case.
c. Remove upper and lower bumpers by
pulling bumper away from bumper retain-
ers. Be careful not to lose the internal joint
trims on the upper bumpers.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Push
Lift
Push
Upper
Bumper
Pull
Internal
Joint Trim
Pull

1-4 INSTALLATION
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 below.
b. Install full length bumpers
and internal trims offset
across joints. Make sure that
no gaps exist between sec-
tions. Continue installing
the upper bumpers the
length of the line up. Do
NOT install the last upper
bumper section at this time.
This section will be installed
in the last step.
4. Install lower bumper starter and
full length lower bumpers by
simply pushing them into place.
Start at the right end of the line-
up for additional camouflage.
There are no internal joint trims
on the lower bumpers.
P/N 0416183C
Splashguard
in place
Starter
Bumper
Internal
Joint Trims
Full
Length
Bumper
Starter
Bumper
Lower
Bumper
Starter
Bumper at
Right End
Upper
Bumper
Full
Length
Bumper

1-5
5. Return to the left end of the line up and posi-
tion the starter section of the top rail as shown.
NOTE: The top rail
should not be installed
until the upper bumper
is securely in place.
6. Push the bottom portion of the short top rail
section down over the color panel. It helps if
you lift the top with your other hand as shown.
You will hear and feel the trim “snap” into
place.
NOTE: The
trim must
“snap” to
be properly
positioned.
7. Use one hand to push the top rail toward the
rear of the case while using the other hand to
“snap” the top section down over the 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 rails
the length of the line up. Do NOT install last
section at this time.
9. Once all except the last sections of upper
bumper and top rail have been installed refrig-
erate the case line up for at least six (6) hours.
The last sections of upper bumper and top
rail should be kept inside a refrigerated case
or cooler during this time. This will allow the
bumpers and top rails to contract.
10. Go to the right end of the line up and tap the
top rail and bumpers to close any gaps.
11. Measure and cut last sections of top rail and
bumpers. Use a miter box and fine-tooth saw
to cut last bumpers and top rail to length.
Install the last sections.
Note: If part of plastic top rail pops loose, remove
that section of top rail and re-install according to
Steps 6 and 7 above. Trying to re-install only the
popped part may not secure the top rail, and may
damage the top rail, color panel and light channel.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Push Lift
Snap
Push
Push
Snap
Miter Box
Bumper

1-6 INSTALLATION
SPLASHGUARD BRACKET
AND JOINT SUPPORT
Install Splashguard Bracket
Position splashguard brackets to the merchandiser
and level to the floor. Each bracket has a slot at the
rear of the bracket where it attaches to the mer-
chandiser. Tighten screws to secure the brackets.
Install Splashguard Joint Support
Position the joint support across the brackets as
shown below. Fasten with sheet metal screws.
P/N 0416183C
Bracket Base of Case

2-1
REFRIGERANT
The correct type of refrigerant will be stamped
on each merchandiser’s serial plate located on
the left-hand end of the interior top liner. The
case refrigeration piping is leak tested, factory
sealed and pressurized. Before making refrig-
eration hookups, depress Schrader valve to
ensure that coils have maintained pressure
during shipment.
REFRIGERANT PIPING
Connection Location
The refrigerant line connections are at the right-
hand 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 merchan-
diser to merchandiser DO NOT RUN REFRIGERANT
LINES THROUGH MERCHANDISERS THAT ARE NOT
ON THE SAME REFRIGERATION SYSTEM or BRANCH
as this may result in poor refrigeration control
and compressor failure.
Interconnecting piping inside the merchandiser
must be positioned to allow room for lifting the
hinged fan plenums and for clearance beneath the
display pans.
Line Sizing
Refrigerant lines should be sized as shown on the
refrigeration legend that is furnished for the store
or according to ASHRAE guidelines.
Note: If Koolgas defrost is used, the liquid line
will need to be increased two sizes larger inside
the merchandiser area. This is necessary to
ensure even liquid drainage from all evaporators
during defrost.
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.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
REFRIGERATION / ELECTRICAL
Splashguard brackets MUST be installed
before piping case.
CAUTION
!
Refrigeration lines are under pressure and
should be depressurized before attempting
to make any connections.
WARNING
!

2-2 REFRIGERATION / ELECTRICAL
INSULATION
With GAS Defrost
The suction and liquid lines should NOT contact
each other and should be insulated separately
for a minimum of 30 ft (9144 mm) from the
merchandiser.
With OTHER Than Gas Defrost
The suction and liquid lines should be clamped or
taped together and insulated for a minimum of
30 ft (9144 mm) from the merchandiser.
With EITHER of Above
Additional insulation for the balance of the liquid
and suction lines is recommended wherever
condensation drippage is objectionable or the lines
are exposed to ambient conditions.
REFRIGERATION THERMOSTAT
The refrigeration thermostat body is located in
the electrical raceway. The bulb, when factory
installed, is located in the discharge flue.
DEFROST TERMINATION THERMOSTAT
The standard disc type defrost termination
thermostat is not adjustable. This thermostat is
clamped to the coil inlet tube.
EXPANSION VALVE ADJUSTMENT
Expansion valves must be adjusted to fully feed
the evaporator. Before attempting to adjust valves,
make sure the evaporator is either clear or only
lightly covered with frost, and that the fixture is
within 10°F of its expected operating temperature.
Adjust valves as follows.
Attach two (2) sensing probes (either thermocou-
ple or thermistor) to the evaporator. Put one under
the clamp holding the expansion valve bulb and
securely tape the other to the coil inlet line.
Some “hunting” of the expansion valve is normal.
The valve should be adjusted so that during the
hunting the greatest difference between the two
probes is 3–5°F (1.7–2.7°C). With this adjustment,
during a portion of the hunting, the temperature
difference between the probes will be less than 3°F
(1.7°C). Make adjustments of no more than one-
half (1/2) turn of the valve stem at a time and wait
for at least 15 minutes before rechecking the probe
temperature and making further adjustments.
CDA SENSOR (OPTIONAL)
Factory installed optional CDA sensor is located
where the thermostat bulb would normally be
located. Its leads will be routed through the
electrical raceway and to the rack control panel.
Leads are tagged in the raceway.
P/N 0416183C

2-3
MERCHANDISER ELECTRICAL DATA
Merchandiser data sheets for specific models are
shipped with this manual. The data sheets provide
case electrical data, electrical schematics, parts
lists and performance data. Refer to the merchan-
diser data sheets and case serial plate for electrical
information.
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.
ELECTRICAL CONNECTIONS
All wiring must be in compliance with NEC and
local codes. All electrical connections are to be
made in the electrical raceway on the serial plate
side of the case (front).
IDENTIFICATION OF WIRING
Leads for all electrical circuits are identified by
wire insulation color or colored plastic bands.
These bands correspond to the color code sticker
(shown below) located inside the merchandiser’s
raceway.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
WIRING COLOR CODE
Leads for all electrical circuits are identified by wire insulation color or a
colored plastic band: neutral wire for each circuit has either White insu-
lation or a White plastic 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

3-1
WASTE OUTLET AND WATER SEAL
The waste outlet is located in front of the fan
plenum 6 ft (1829 mm) from the left-hand end of
the merchandiser (facing case front). A water seal
is supplied with each fixture. The water seal must
be installed at the waste outlet to prevent air leak-
age and insect entrance into the fixture.
NOTE:
Water seal outlet must clear front skid rail.
Refer to Data Sheets for dimensions.
A tee fitting, an adapter, a plug and a street ell are
also supplied with each merchandiser.
INSTALLING DRIP PIPING
Poorly or improperly installed drip pipes can
seriously interfere with the merchandiser’s opera-
tion and result in costly maintenance and product
losses. Improperly installed drip pipes can cause
condensate to form on the outside of drip pipes.
The Water Seal Must Be Level
The residual defrost water in the water seal is a
barrier that will prevent air movement through the
drip piping. Condensation and frost may form if a
water seal is improperly installed.
Refer to the data sheet shipped with each model to
correctly locate piping. Please follow the recom-
mendations listed below when installing drip pipes
to ensure proper installation.
1. Never use drip piping smaller than the nominal
diameter of the pipe or water seal supplied
with the merchandiser.
2. When connecting drip piping, the water seal
must be used as part of the drip piping to pre-
vent air leakage or insect entrance. The water
seal must be installed with the waste outlet at
the main drain point of each merchandiser.
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 1/8in. per ft
(3 mm per 305 mm).
4. Avoid long runs of drip piping. Long runs
make it impossible to provide the pitch neces-
sary for good drainage.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
DRIP PIPING AND SPLASHGUARDS
Splashguard brackets MUST be installed before
piping case.
CAUTION
!
Front of Case
Waste Outlet
Field
Installed
Water
Seal
Base Of Case
Center of Case

3-2 DRIP PIPING AND SPLASHGUARDS
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 merchandisers, 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 non-absorbent insulation
material.
B. Where drip pipes are located in dead air
spaces, such as between merchandisers or
between a merchandiser and a store wall, pro-
vide means to prevent freezing.
INSTALLING SPLASHGUARDS
The splashguard and brackets are shipped inside
each case.
Install splashguard brackets before piping case.
Use two screws per bracket; attach brackets every
4 ft (1219 mm) at pre-drilled locations.
After merchandisers have been leveled and joined,
and all drip piping, electrical and refrigeration
work has been completed, install the splashguard.
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 it snaps into
place.
P/N 0416183C
1
2

3-3
SEALING SPLASHGUARD TO FLOOR
IF REQUIRED by local sanitation codes, or if
desired by the customer, plastic splashguards may
be sealed to the floor using silicone type sealer.
The amount needed will depend on how much the
floor is out of level.
1. Remove all dirt, wax and grease from the area
of the splashguard where adhesion will be nec-
essary. This is to ensure a good and secure
installation.
2. Apply a good silicone type sealer along the
bottom of the splashguard. Sealant must be
removed and replaced when servicing.
OPTIONAL 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 nec-
essary. 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.
3. Install the trim to the splashguard so that it is
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 sili-
cone type sealer. Sealant must be removed and
replaced when servicing.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Splashguard
Silicone-type
Sealer
Splashguard
Cement
Cove Trim

4-1
START UP
See the merchandiser's Data Sheet Set for refriger-
ant settings and defrost requirements. Bring mer-
chandisers down to the operating temperatures
listed on the data sheet.
Each 4 ft (1219 mm) section has its own evapora-
tor coil and pre-set non-adjustable thermostatic
expansion valve (TEV). No adjustment is required.
DO NOT 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.
AMBIENT AIR FILTERS
The ambient air filters on top of the case should be
checked for possible debris accumulated during
construction, shipping and installation. Refer to
Care and Cleaning in Section 5 – Maintenance.
STOCKING
Product should NOT be placed in merchandisers
until case is at proper operating temperature.
Display cases are not intended to freeze foods, but
to maintain frozen foods at the proper temperature
while displayed.
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 product, packages,
signs, etc. to block these grilles. Do not use
unapproved shelving, baskets, display racks, or
any accessory that could hamper air curtain per-
formance.
SHELF SIZE AND LOCATION
Standard Shelves
All shelves and racks are 48 in. (1219 mm) wide.
The standard shelf depth is 22 in. (559 mm) in F6
and F6L cases. At least three, but not more than
five, 22 in. (559 mm) standard shelves must be
used in each F6 or F6L case. The standard shelf
cannot be the lowest shelf in either F6 or F6L
cases.
See illustrations on next page.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
START UP / OPERATION
Removal of the TEV cap will result in
refrigerant loss unless the system is first
isolated and the refrigerant recovered.
CAUTION
!
At no time should merchandisers
be stocked beyond the
load limits indicated.
WARNING
!
Ambient Air Filter on Top Front of Case

4-2 START-UP / OPERATION
Each standard front (F6) case must have
no more than 16 open slots below the low-
est standard shelf. Each low front (F6L)
case must have no more than 12 open slots
below the lowest standard shelf.
Mezzanine Shelf
The mezzanine, or lowest shelf depth may
be 18, 16, or 14 in. (457, 406, or 356 mm).
This shelf must be positioned below the
lowest standard shelf.
Bottom Rack
Standard front (F6) cases use a telescoping
wire rack with a 3 in. (76 mm) acrylic
product stop mounted on the product side
of the return grille, angled toward the
product.
Low front (F6L) cases should not use the
telescoping rack. Instead, F6L cases use a
wire rack with a built-in wire lip product
stop in one of three heights: 2, 6, or 12 in.
(51, 152, or 305 mm).
P/N 0416183C
Display Pan
Mezzanine
Shelf
3 to 5
Standard
Shelves
16 Open
Slots
F6
Product
Stop
Shelf Placement
Display Pan
Mezzanine
Shelf
3 to 5
Standard
Shelves
12 Open
Slots
F6L
Wire Rack
with Lip

4-3
LOAD LIMITS
Each merchandiser has a load limit decal.
Overstocking will adversely affect product
temperature and case efficiency. Recommended
load limit profiles are shown below.
LOAD LIMIT PROFILES
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.
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
LOAD LIMIT
Load Limit
Load Limit
F6L F6

4-4 START-UP / OPERATION
P/N 0416183C
— Inside
End Panel
Suggested Mounting Locations
in Multi-deck Merchandisers
— Return Air Grille
— Shelf
Price Tag
Molding
Suggested Mounting Locations
in Single Deck Glass Front
Impact Merchandisers
— Acrylic
Package Guard,
Facing Out
Double Stick Tape
Flexible Plastic
Fits in Price Tag
Moldings
Thermometer — Hussmann P/N 430108
This is an NSF-7 &
1999 FDA Food Code
Required
Thermometer

4-5
Low Temperature
Multi-deck Frozen Food
HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Excerpt from ANSI / NSF-7:
5.30 Temperature indicating devices
5.30.1 Each refrigerated storage compartment and cabinet
shall have at least one securely mounted temperature indicat-
ing device that clearly displays the air temperature in the
compartment. A temperature indicating device shall not be
required in beverage coolers or units intended solely for the
storage and/or display of ice cream and other frozen deserts.
5.30.2 The temperature display of a temperature indicating
device shall be visible immediately upon opening a door to
the refrigerated compartment or shall be visible from the
equipment exterior without opening a door to the compart-
ment. The sensing element of the device shall be easily
cleanable and located to reflect the temperature in the
warmest part of the food storage compartment.
Open display refrigerators shall have a temperature indicating
device that is easily cleanable and located to reflect the
warmest part of the food storage compartment. Open display
refrigerators shall include a thermometer and installation
instructions for installing the thermometer in the warmest
part of the food storage compartment, as determined by the
manufacturer.
Excerpt from 1999 FDA Food Code:
4-204.112 Temperature Measuring Devices.
(A) In a mechanically refrigerated or hot FOOD storage unit, the
sensor of a TEMPERATURE MEASURING DEVICE shall be located to
measure the air temperature in the warmest part of a mechan-
ically refrigerated unit and in the coolest part of a hot FOOD
storage unit.
(B) Except as specified in ¶(C) of this section, cold or hot
holding EQUIPMENT used for POTENTIALLY HAZARDOUS FOOD shall
be designed to include and shall be equipped with at least
one integral or permanently affixed TEMPERATURE MEASURING
DEVICE that is located to allow easy viewing of the device’s
temperature display.
(C) Paragraph (B) of this section does not apply to EQUIPMENT
for which the placement of a TEMPERATURE MEASURING DEVICE is
not a practical means for measuring the ambient air surround-
ing the FOOD because of the design, type, and use of the
EQUIPMENT, such as calrod units, heat lamps, cold plates,
bainmaries, steam tables, insulated FOOD transport containers,
and salad bars.
Important – Please read!
Keep with merchandiser
or give to store manager — do not destroy.
Hussmann P/N 429971A 11/2000
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.