Vulcan-Hart VHU Series User manual

VHU Series Humidified and Heated Holding Cabinets Effective 03-16
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INSTALLATION &
OPERATION MANUAL
VHU SERIES INSULATED HUMIDIFIED
HEATED TRANSPORTATION CABINETS
MODELS:
VHU7
VHU18
F47668

VHU Series Humidified and Heated Holding Cabinets Effective 03-16
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IMPORTANT FOR YOUR SAFETY
THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL
ELECTRICAL EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD START-
UP AND ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER
FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY
OF THIS OR ANY OTHER APPLIANCE.
Improper installation,adjustment,
alteration,service, or maintenancecan
cause propertydamage, injury,or death.
Read the installation,operatingand
maintenanceinstructionsthoroughly
before installingor servicingequipment.
IN THE EVENT OF A POWER FAILURE,
DO NOT ATTEMPT TO OPERATE THIS DEVICE

VHU Series Humidified and Heated Holding Cabinets Effective 03-16
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TABLE OF CONTENTS
IMPORTANT FOR YOUR SAFETY
1
INTRODUCTION
3
INSTALLATION
3
ELECTRICAL REQUIREMENTS
4
OPERATION INSTRUCTIONS
5
CLEANING
6
TROUBLESHOOTING
7
SERVICE & PARTS INFORMATION
7

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INTRODUCTION
The VHU Series Humidified and Heated Holding Cabinets provide an efficient means of
holding bulk prepared foods at proper serving temperatures while maintaining food
quality. Advanced sensing technology maintains anideal combination of temperature and
humidity, without complicated controls.
Vulcan Heated Holding Transport Cabinets are produced with quality workmanship and
material. Proper installation, usage, and maintenance of your cabinet will result in many
years of satisfactory performance. It is suggested that you thoroughly read this entire
manual and carefully follow all of the instructions provided.
INSTALLATION
Before installing, verify that the electrical
service agrees with the specifications on
the rating plate located toward the back
of the cabinet. (Fig. 3)If the supply and
equipment requirements do not agree, do
not proceed with unpacking and
installation. Contact your Vulcan-Hart
Customer Service Department
immediately.
UNPACKING:
The Cabinet was inspected before
leaving the factory. The transportation
company assumes full responsibility for
safe delivery upon acceptance of the
shipment. Immediately after unpacking,
check for possible shipping damage to
the cabinet.
If the cabinet is found to be damaged,
save the packaging material and
contact the carrier within 15 days of
delivery.
Carefully unpack and place in a work
accessible area as near the installation
position as possible.
1. Open the door and carefully
remove any packaging materials
and the retaining strapsthat hold
the tray slides and tray slide
upright side supports.
2. Peel off vinyl protection film.
3. STACKED UNITS ONLY –
proceed to step 4 otherwise:
Stacked cabinets are stacked on
top of each other. One cabinet
will come with casters and a
stacking assembly on top –this
is the bottom cabinet. The other
cabinet should be placed inside
the stacking kit and requires two
people to lift. Stacking kits fit only
one way between the cabinets. If
for any reason either one or both
cabinets do not fit within the
stacking kit provided, please
contact customer service.
4. Remove universal tray slides from
box. Install tray slides in the
cabinet. Make sure the hook on
the end ofthe tray slide is up. (Fig.
1)
5. Make sure the internal water pan
is located at the bottom of the
inner cavity. Install the second pan
underneath the unit on the 2 metal
slides. (Fig. 2)
Fig. 1

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CLEANING:
The cabinet should be thoroughly cleaned prior to putting into service.
Use a mild soap and water solution to clean the interior of the unit. Never use harsh
chemicals or abrasive pads to clean the unit.
LOCATION:
For efficient cabinet operation, choose a
location that will provide easy loading
and unloading without interfering withthe
final assembly of food orders.
The installation location must be level
and allow adequate clearances for
servicing and proper operation.
(Fig. 2)
Fig. 2
ELECTRICAL REQUIREMENTS
ELECTRICAL CODES & STANDARDS:
The cabinet must be installed in
accordance with:
In the United States of America:
1. State and Local Codes.
2. National Electrical Code, ANSI/
NFPA-70 (latest edition.) Copies
may be obtained from: The
National Fire Protection
Association, 1 Batterymarch Park,
Quincy, MA 02269.
1-617-770-3000 www.nfpa.org
In Canada:
1. Local Codes.
2. Canadian Electrical Code, CSA
C22.1 (latest edition.) Copies
may be obtained from: The
Canadian Standard Association.
www.csa.ca
ELECTRICAL CONNECTIONS:
The cabinet is factory wired for either
110/120 volt or 208/240 volt, single
phase operation. All 110/120 volt
cabinets are equipped withan 8-foot cord
and NEMA 5-15 plug as standard
equipment. All 208/240 volt cabinets are
equipped with an 8-foot cord and NEMA
6-15 plug. The cord and plug supplied is
a suitable durable cord, and is provided
with a proper strain relief.
All cabinets are
equipped with a three-prong plug. It is
imperative that this plug must be
connected into a properly grounded
three-prong receptacle. If the
receptacle is not the proper grounding
type, contact an electrician. Do not
remove the grounding prong from this
plug.

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Verify that the power source matches
the Serial Data Plate located toward
the back of the cabinet and the plug
configuration before theconnection is
made. (Fig. 3)
(Fig. 3) –only an example, not representativeof
all units
OPERATION INSTRUCTIONS
The Cabinet and its parts are hot. Be very carefulwhen operating, cleaning,
or servicing the cabinet. Heating elements are located at the bottom of the unit, and
touching the floor of the internal cavity or water pan can result in injury.
Basics
Instructions:
1. Turn unit on.
2. Select temperature. Humidity will
automatically adjust.
Optional
Select alternative humidity setting.
To deactivate humidity, press knob for 5
seconds.
Press knobs for internal temperature or
humidity.
Detailed Explanation
A lighted switch allows you to turn the cabinet
ON/OFF (cabinet is ON when the switch is
illuminated).
The VHU cabinet allows control of both
temperature and humidity. There are 2
displays and 2 knobs; the set on the left is for
temperature and the set on the right is for
humidity. Changing the temperature will
automatically adjust the humidity. Always
choose your desired temperature first, and if
needed, fine-tune humidity. The preset
humidity is designed to hold moist foods.
To operate the cabinet with humidity, the
internal water pan must be filled. The max
capacity of the water pan is 2 U.S. gallons or
7.5 liters. The internal water pan should be
filled periodically, approximately every 3
hours during high volume use. Water drips
into a secondary pan underneath the unit.
This pan of water should be emptied each
time the internal water pan is filled.
The cabinet can be operated without
humidity control. Press and hold down the
humidity knob for 5 seconds to deactivate.
The right display will go blank once humidity
control is deactivated. To reactivate press
the humidity knob. For best operation while
holding dry foods (such as fried chicken and
French fries) remove water from internal
humidity pan.
The display shows the desired temperature
or humidity. To see the current internal
temperature or humidity, press the
appropriate knob. The internal temperature
will be displayed for 4 seconds –if the
internal temperature or humidity is the same
as the desired it will appear that the display
does not change.

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When proofing:
Wait approximately 10 minutes for the
cabinet to preheat from ambient.
When holding cooked food
Wait approximately 35 minutes for the
cabinet to preheat from ambient. Only load
pans with hot, cooked food into cabinet.
NOTE: This cabinet is not intended to reheat or cook food. Food must be cooked
and at a safe serving temperature prior to being placed in the cabinet.
NOTE: The operator should always monitor the food product to insure that it
remains at a proper temperature.
CLEANING
Always unplug electrical
power supply before cleaning.
Do NOT spray or hose
down the unit. Sensitive electronics
can be damaged.
DAILY:
1. Unplug electrical power supply.
2. Allow warmer to cool before
cleaning.
3. Clean the interior of the cabinet
with a mild soap and water.
Never use harsh chemicals or
abrasive pads to clean the cabinet.
4. Rinse and dry with a soft dry
cloth.
5. Clean the exterior of the cabinet
with a clean damp cloth.
HEAT TINT:
Darkened areas, called “heat tint,” may
appear on stainless steel exposed to
excessive heat. Excessive heat causes
the protective film to thicken. This is
unsightly, but is not a sign of permanent
damage. The internal floor of the unit and
humidity pan are especially susceptible.

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TROUBLESHOOTING
SYMPTOMS POSSIBLE CAUSES REMEDY
Cabinet not connected to
power source.
Connect cabinet to power source.
Check circuit breaker
Check GFCI
Moisture problem. Dry moisture problem.
Shorted element Contact Authorized Service Provider.
Pinched/damaged wire. Contact Authorized Service Provider.
Damaged power cord. Contact Authorized Service Provider.
Cabinet is connected to
power source, switch is ON,
circuit breaker is ON, but
cabinet is not heating.
Defective: element,
thermometer, thermostat, etc.
Contact Authorized Service Provider.
Power/Heat Indicator Light
not lit.
Light faulty Contact Authorized Service Provider.
Door not shut properly or
needs adjustment
Check door seal and Contact
Authorized Service Provider.
Defective: element,
thermometer, thermostat,
thermostat requires adjustment
Contact Authorized Service Provider.
ON/OFF switch not ON Turn ON/OFF switch ON
Defective fan. Contact Authorized Service Provider.
Cabinet thermostat
turned off, but fan is still
operating
Fan will continue to
operate until the cool
down cycle is complete
Cabinet not operating
No power.
GFCI or Ground Fault
Circuit Indicator tripped
Cabinet does not heat
properly
Fan not operating
E01 or E03 displayed
Issue with sensor
Try the following:
1. Power cycle unit
2. Unplug and replug sensor
3. Replace sensor
Knobs not working
Moisture problem –
corrosion on control
board.
Damaged knobs
Contact Vulcan service.
SERVICE & PARTS INFORMATION
To obtain Service and Parts information concerning this model, and for a complete listing of
Authorized Service and Parts depots refer to our website or call Customer Service.
www.vulcanequipment.com
Customer Service: 800-814-2028
When calling for service, have the model number and serial number available.