Hussmann NAV Series User manual

NAV & NAVC
Medium Temperature
Service Deli Self Contained
Merchandisers
Installation &
Operation Manual
P/N 2400204_H
April 2017
IMPORTANT
Keep in store
for future reference!
Spanish 0531301
French 0531302
®
Æ
MANUAL- IO NAV/NAVC SC

P/N 2400204_H 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
© 2017 Hussmann Corporation
Merchandiser must operate for 24 hours
before loading product!
Regularly check merchandiser temperatures.
Do not break the cold chain. Keep products in
cooler before loading into merchandiser.

ANSI Z535.5 DEFINITIONS .............. vi
INSTALLATION
Certification ........................... 1-1
Hussmann Product Control .............. 1-1
Shipping Damage ...................... 1-1
Location .............................. 1-1
Self Contained (Location) ................ 1-2
Model Description ..................... 1-2
Unloading ............................ 1-2
Exterior Loading ....................... 1-3
Shipping Skid ......................... 1-3
Merchandiser Leveling .................. 1-3
Optional Legs ......................... 1-3
Serial Plate Location .................... 1-4
Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Refrigeration Unit Access ................ 1-4
Sealing Merchandiser to Floor ............ 1-4
Check List ............................ 1-5
ELECTRICAL / REFRIGERATION
Merchandiser Electrical Data ............. 2-1
Field Wiring ........................... 2-1
Electrical Connections . . . . . . . . . . . . . . . . . . . 2-1
Power Input ........................... 2-1
Electrical Outlet ........................ 2-1
Refrigeration (Self Contained) ............ 2-2
Waste Outlet .......................... 2-2
Operating Safe-NET III Controls ..........2-3
Start-Up / Operation .....................2-4
Alarms and Codes .......................2-4
Troubleshooting .........................2-4
Defrost Termination Switch ...............2-5
Manual Defrost .........................2-5
Temperature Adjustment ..................2-6
Sequence of Operation ....................2-7
Safe-NET Sensor Location ................2-8
START UP / OPERATION
Start Up .............................. 3-1
Controls and Adjustments ............... 3-1
Load Limits ........................... 3-2
Stocking .............................. 3-2
Maximum Shelf Weight Limits ............ 3-3
Pencil Thermometer .................... 3-4
MAINTENANCE
Care and Cleaning ...................... 4-1
Cleaning Stainless Steel Surfaces .......... 4-2
Cleaning Pencil Thermometer ............ 4-2
Cleaning the Bottom Deck ............... 4-3
Cleaning Coils ......................... 4-3
Cleaning Evaporation Pan ............... 4-4
Removing Scratches from Bumper ......... 4-4
Refrigeration Equipment Maintenance
Check List..............................4-5
SERVICE
Replacing Display Lamps ................ 5-1
Troubleshooting Guide .................. 5-1
Troubleshooting Light Guide ............. 5-2
APPENDIX
Parts List ............................. A-1
Plan Views ............................ A-3
Cross Sections and Refrigeration Data ...... A-5
Defrost Data .......................... A-5
Physical Data .......................... A-5
Electrical Data ......................... A-6
Shipping Weights and Amps . . . . . . . . . . . . . . A-7
Wiring Diagrams ....................... A-8
WARRANTY
TABLE OF CONTENTS v
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Service Deli Merchandisers

REVISION HISTORY
REVISION H — COVER - DOE 2017 COMPLIANT
A-2 - REMOVE 1700502 & 1804576 MOTORS, REPLACE
WITH 0527610- CONDENSER FAN MOTOR (115V, 12W,
SSC2B12CHSIBA1) ON THREE MODELS
A-6 - REFRIGERANT CHARGE: ADD FOR WHICH
MODEL IS EACH CHARGE: NAV/C-4 14.5 OZ, NAV/C-6
20 OZ, NAV/C-8 23 OZ
A-7 - UPDATE ENERGY CONSUMPTION VALUES ON
NAV/C-4 FROM 5.77 TO 5.33 AND NAV/C-8 FROM 8.90
TO 8.39
REVISION G — Changed ambient temp in box; 1-1
iii — changed to pre-chilled; Added Section 2 Safe-NET;
3-1 Controls and Adjustments Table; 5-1 LED lamps;
A-5 Defrost Data; A-6 lamp data; Energy Consumption
A-7; New Wiring Diagram and Parts List
REVISION F — Added Check Lists Page 1-7; Added
Warning Page 1-3; Cleaning Coils 4-3; Maintaining
Fluorescent Lights 4-4, Check Lists Page, 4-6
REVISION E — JANUARY 2011
1. Added Location Drawing, Page 1-2
2. Added Light Switch, Refrigeration Unit Access,
Page 1-4
3. Added Appendix A, Technical Data
vi
* * * * * * * * * * * * * * * * * * * * * * * * * *
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.



P/N 2400204_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com

P/N 2400204_H 1-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Service Deli Merchandisers
UL LISTING
These merchandisers are manufactured to
meet ANSI/ UL 471 standard requirements
for safety. Proper installation is required to
maintain the listing.
FEDERAL / STATE REGULATION
These merchandisers at the time they are
manufactured, meet all federal and state/
provincial regulations. Proper installation
is required to ensure these standards are
maintained. Near the serial plate, each
merchandiser carries a label identifying the
environment for which the merchandiser was
designed for use. A Type II fan speed control
kit is required for each merchandiser to
operate at Type II conditions.
ANSI/NSF-7 Type I – Display Refrigerator /
Freezer
Intended for 75°F (24°C) / 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
HUSSMANN PRODUCT CONTROL
The serial number and shipping date of all
equipment is recorded in Hussmann’s files
for warranty and replacement part purposes.
All correspondence pertaining to warranty or
parts ordering must include the serial number
of each piece of equipment involved. This is
to ensure the customer is provided with the
correct parts.
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 response to the
carrier for inspection within 15 days.
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 merchandisers
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 merchandiser.
INSTALLATION
Recommended operating ambient
temperature is between
65°F (18°C) and 75°F (23.9°C).
Maximum relative humidity is 55%.

1-2 InstallatIon
P/N 2400204_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
SELF CONTAINED (LOCATION)
NAV and NAVC merchandiser models have
front-facing condenserair intake and air
discharge. Maintain a minimum clearance
distance of 2 feet in front of the merchandiser
and 4 inches on each side, so that air discharge
and air intake are not obstructed.
24 in.
Air
Intake
Air
Exhaust
Front Rear
Maintain 4 in. Clearance
around Sides and Rear
Maintain 24 in. Clearance
at Front
This product may contain chemicals known
to the State of California to cause cancer,
birth defects, or other reproductive harm.
This warning is the result of the California State
law known as the California Safe Drinking Water
and Toxic Enforcement Act of 1986, which is
commonly referred to as “Proposition 65.”
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 claried by the California
State government, Proposition 65 can be consid-
ered more of a ‘right to know’ law than a pure
product safety law. When used as designed, Huss-
mann believes that our products are not harmful.
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.
For California Businesses:

P/N 2400204_H 1-3
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Service Deli Merchandisers
MODEL DESCRIPTION
NAV/C service deli merchandisers offer
versatility in the display of medium
temperature (32º F to 41º F) products such
as dairy products, prepared salads, pizza and
fresh dinners that are pre-chilled in a cooler.
Carefully read and follow the instructions
before operating the merchandiser.
UNLOADING
Unloading from Trailer:
Lever Bar (also known as a Mule, Johnson
Bar, J-bar, Lever Dolly, or Pry Lever)
Move the merchandiser as close as possible to
its permanent location and remove all packaging.
Check for damage before discarding packaging.
Remove all separately packed accessories
such as kits and shelves. Improper handling
may cause damage to the merchandiser when
unloading. To avoid damage:
1. Do not drag the merchandiser out of the
trailer. Use a Johnson Bar, J-bar, Lever
Dolly, or Pry Lever.
2. Use a forklift or dolly to remove the
merchandiser from the trailer.
EXTERIOR LOADING
Do NOT walk on top of merchandisers or
damage to the merchandisers and serious
personal injury could occur.
merchandisers are not structurally
designed to support external loading
such as the weight of a person. Do not place
heavy objects on the merchandiser.
SHIPPING SKID
Each merchandiser is shipped on a skid to
protect the merchandiser’s base, and to make
positioning the case easier.
Do not remove the shipping skid until the
merchandiser is near its final location.
The skid provides protection for both the
merchandiser and the floor.
Remove the skid by raising one end of the
merchandiser approximately 6 inches. Block
the merchandiser securely, and remove the two
skid bolts from the raised end. Replace the
bolts with (provided) leg levelers. Repeat this
procedure at opposing end. Once the leg levelers
are secured in place, the merchandiser may be
slid off the skid and placed in its final location.
DO NOT TILT MERCHANDISER ON ITS
SIDE OR END WHEN REMOVING SKID.
Once the skid is removed, the merchandiser
must be lifted —NOT PUSHED— to reposition.
Check floor where merchandisers are to be set
to see if it is a level area. Determine the highest
part of the floor.
Do NOT stand or walk on top of
merchandiser. Do not store items or
ammable materials atop the unit.

1-4 InstallatIon
P/N 2400204_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
MERCHANDISER LEVELING
Besure to position merchandisers
properly. Level the merchandiser by all four
corners. Merchandiser(s) must be installed
level to ensure proper operation of the
refrigeration system, and to ensure proper
drainage of defrost water.
OPTIONAL LEGS
NSF® approved legs replace the leg levelers if
required by local health codes. The legs raise
the case 6 inches for cleaning purposes. An
optional skirt kit can be provided to snap on
the legs.
SERIAL PLATE LOCATION
The serial plate is located in the top interior at
the left side of the merchandiser. It contains all
pertinent information such as model, serial
number, amperage rating, refrigerant type
and charge. This information will be needed
to maintain, service or order parts for the
merchandiser.
LIGHT SWITCH
The light switch is located at the rear of the
merchandiser. Ensure it is switched ON to turn
on the display lights.
Serial Plate
Light Switch
Do NOT remove shipping crate until
the merchandiser is positioned
for installation.
NAV-4
CONDENSING
UNIT
EVAPO RATO R
COIL