Nu-Vu PRO-8 Installation Manual

MENOMINEE, MICHIGAN 49858

4401

NU-VU

For NU–VU® Models:

PRO–8,

PRO–16,

PROW-8,

®

FOOD SERVICE SYSTEMS

PROW-16

OWNER'S
MANUAL

Revised:
13 March 2012

(906) 863-

PRO–8 & PRO–16

TABLE OF CONTENTS

ABOUT YOUR NU–VU® EQUIPMENT ........................................................................ 1

WARRANTY ................................................................................................................. 4

RECEIPT AND INSTALLATION ................................................................................... 7

PRODUCT PREPARATION AND USE OF UNIT ....................................................... 10

OPERATING INSTRUCTIONS .................................................................................... 14

MAINTENANCE AND CLEANING GUIDE .................................................................. 17

TROUBLE–SHOOTING GUIDE ................................................................................... 20

SERVICE AND REPLACEMENT GUIDE .................................................................... 23

REPLACEMENT PARTS LIST ..................................................................................... 35

PRO–8 & PRO–16 OWNER'S MANUAL ABOUT YOUR NU–VU® EQUIPMENT

ABOUT YOUR NU–VU® EQUIPMENT

NU–VU® as a product line has been in existence for over twenty-one years. Its units are in use
throughout the United States and Canada and have been exported to other parts of the world.
NU–VU® continually modifies and updates its equipment to improve the capabilities as new
innovations become available. This enables the user to obtain better and more useful results.
NU–VU® currently manufactures an entire line of food service equipment in Menominee,
Michigan. All of the equipment is tested under anticipated operating conditions prior to
shipment.

Any prospective customer is invited to try different food products in the newly completed test
kitchen in Menominee, Michigan. Seminars for both dealers and customers are available: on­site in Menominee, Michigan; at a dealer's showroom; on the customer's premises. If contacted
NU–VU® will provide information on the nearest location and availability. In the event that a
customer wants to try a specific product arrangements can be made to determine what
conditions are necessary for baking so that the customer can determine the suitability for his or
her program.

NU–VU® can provide a wide range of equipment with the following features:

• Bakery Ovens with either INTERNAL or EXTERNAL STEAM generating
capabilities. These Ovens may be equipped with COOK–N–HOLD capabilities for
broader use.

• COOK–N–HOLD Ovens for either high temperature or low temperature operation
with moisture and smoking capabilities.

• Low temperature Ovens with moisture and smoking capabilities.

• Steamer Ovens with high and low temperature capabilities.

• Multi–Ovens that dry bake, steam, and bake with steam.

• Bakery Proofer/Warmers with heat and moisture generating units with either manual
water fill or automatic humidity systems.

• General purpose Proofer/Warmer for reconstituting, slow cooking, holding and/or
steaming.

NU–VU® has, over a period of time, developed a series of Ovens, Proofers, Steamers,
Smokers and Warmers designed to provide maximum performance with minimum energy
requirements and care by the operator. NU–VU® Food Service Systems offers the widest
range and variety of equipment through the varied use of heat, moisture, steam and smoke
options.

NU–VU® MODELS PRO–8 AND PRO–16:

The NU–VU® PRO–8 Proofer is a single-door unit equipped with 4" adjustable appliance legs,
and is designed for use on a table or counter-top. The integral side racks offer a capacity of up
to 8 full size 18"x26" sheet pans. The PRO–8 measures approximately 40" high (including the
4" appliance legs), 25" wide and 31" deep (plus 3½" for the door and latch).

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ABOUT YOUR NU–VU® EQUIPMENT PRO–8 & PRO–16 OWNER'S MANUAL

The NU–VU® PRO–16 Proofer is a double-door floor unit equipped with locking casters.
Designed vertically to minimize floor space, it has a capacity of up to 16 full size 18"x26" sheet
pans. The PRO–16 measures approximately 69" high (including the locking casters), 25" wide
and 31" deep (plus 3½" for the door and latch).

The PRO–16 is also available in a wider version (model PRO–16X). This model measures 69"
high, 31" deep (plus Door and Latch), and 28½" wide.

These models provide maximum proofing and warming capabilities in units that are extremely
small, making their six square feet of your floor or counter an economical space-saving
investment.

These reach-in Proofers are powered by a 120 VAC electrical supply, and come equipped with
a cord and plug for connection to a dedicated 120 volt service rated for 20 amps. The PRO–8
operates at a nominal current load of 16 amps; the PRO–16 draws a nominal 19 amp load.

Standard units are constructed with a stainless steel exterior and aluminum interior, and
equipped with a manually-filled water reservoir to provide controlled humidity levels during
proofing and warming operations. Both are equipped with individual humidity and 110F
temperature controls, along with a bottom-mounted blower wheel for continuous air flow over
and around your product. All controls are centrally located on the bottom front of the unit for
ease of operation. A complete insulation package allows these units to perform at top
efficiencies.

Each is also available with the following options:

• AUTOMIST Humidity System - - eliminates the need for a manually-filled water pan,
and automatically provides even and continuous humidity levels throughout your
proofing process (PROW- models).

• Warmer - - supplied with a 250F thermostat to reach and maintain optimum product
warming or holding temperatures.

• Stainless Steel interior - - used in place of aluminum for extended durability and
increased ease of cleaning.

The NU–VU® PRO–8 and PRO–16 Proofers are designed with these features in mind:

• Automatic pan positioning • Dependable components

• Rapid, even production • Low energy consumption

• Easy cleaning • Low maintenance

• Simple operation • Rapid servicing

The NU–VU® PRO–8 and PRO–16 can be used to proof almost any product. A sampling of
these products might include:

• Breads • Pizza crusts

• Rolls • Croissants

• Pastries • Raised Donuts

When equipped with the Warmer option either unit can be used to reheat product portions, or
to hold a variety of finished products at a safe and convenient temperature for use at a later
time. These products can include, but are not limited to:

• Baked goods • Casseroles

• Vegetables • Individual serving portions

• Pizza • Meats

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PRO–8 & PRO–16 OWNER'S MANUAL ABOUT YOUR NU–VU® EQUIPMENT

CONSTRUCTION:

The NU–VU® PRO–8 and PRO–16 Proofers are constructed of stainless steel outside and
polished aluminum inside. An optional stainless steel interior is also available. All of the frame
members are formed and welded to provide durability, rigidity and long life construction.
Components such as temperature and humidity controls, switches, motors, heating elements,
and others are thoroughly tested before shipment. Ongoing research and development projects
are used to introduce the latest and most dependable components.

COMPARISON WITH OTHER UNITS:

NU–VU® will provide test data or a test unit for the comparison of results with any other unit
on the market; however, NU–VU® reserves the right to have one or more of its designated
representatives present during the test. All results of such comparison testing shall be made
available to NU–VU® and may be used by NU–VU®.

AVAILABILITY AND TESTING:

A prospective customer may see a unit in operation as follows:

• At a dealer's showroom,

• At an existing installation,

• At the NU–VU® manufacturing facility.
If contacted, NU–VU® will provide information on the nearest location and equipment

availability. In the event that a customer wants to try a specific product arrangements can be
made to determine what conditions are necessary for baking so that the customer can
determine the suitability for his or her program. Technical product information can be
generated by customer-requested testing of various products and equipment.

SHIPMENT:

NU–VU® equipment is usually shipped directly from the factory or delivered from a dealer,
unless sold at a show or after a test or demonstration. Unless otherwise agreed to by NU–VU®
freight is paid by the buyer F.O.B. the NU–VU® facility in Menominee, Michigan. Shipping
time may vary depending upon the original shipping point, time of year and shipper/shippers
used.

NU–VU® works closely with all of its customers in tracing shipments to speed delivery and
minimize handling. NU–VU® employs the latest accepted packaging standards to ensure that
your equipment arrives in excellent condition. However, damage may still occur due to
accident or mishandling by the freight company. For this reason it is necessary for the receiving
party to immediately do a thorough inspection of the equipment when it arrives.

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NU-VU® EQUIPMENT WARRANTY PRO–8 & PRO–16 OWNER'S MANUAL

NU–VU® EQUIPMENT WARRANTY

NU–VU® products are warranted against defects in workmanship and materials. No other
express warranty, written or oral, applies. No person is authorized to give any other warranty
or assume any other liability on behalf of NU–VU®, except by written statement from an officer
of NU–VU®.

Your NU–VU® equipment warranty is limited to the following time periods for the original
owner only:
PARTS LABOR
Inside the United States 24 Months 12 Months
All areas outside the United States 24 Months 12 Months

These time limits will apply in all cases unless prior arrangements have been made and agreed
to in writing.

The NU–VU® equipment warranty is composed of the following:

CONSTRUCTION - -

This warranty covers fabricated metal parts such as side walls, element covers, tops, corner
posts (where used), bases and other parts. The unit is made from welded stainless steel (or
aluminum where applicable) and is warranted to retain the integrity of the construction during
its time of use in the original location of installation. NU–VU® reserves the right to provide the
method of, and person to make, any required repair.

PARTS - -

This limited warranty covers certain electrical, electronic and mechanical parts for the time
periods listed above with the exception of those items detailed under Warranty Limitations.
Customers who maintain an open account may purchase against their account. MasterCard,
Visa and American Express credit cards are also accepted.

The return of defective parts is required. The return of a defective part or component must be
made prior to the issuance of a credit on an open account. If a part that is returned tests
satisfactory in the NU–VU® factory or at an authorized NU–VU® dealer or service agency,
NU–VU® may withhold issuing credit. Replacement parts will be warranted for a period of
ninety (90) days provided they are installed in a manner authorized by NU–VU®.

LABOR - -

We require that you call our NU–VU® Service Department at [phone] for service
authorization BEFORE you call any service agency if you wish to claim a labor expense under
this warranty. We may be able to solve your problem over the telephone, or we will schedule a
warranty service call by a reliable service agency in your area.

This warranty covers the replacement and installation of parts and components which are

included under PARTS for the time period indicated on the previous page. This coverage is
limited to the normal mileage allowance for a maximum travel radius of up to fifty (50) miles,
and the normal labor rate times the allowable hours for performing the work as set forth in the
following listing:

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PRO–8 & PRO–16 OWNER'S MANUAL NU-VU® EQUIPMENT WARRANTY

NU–VU® FOOD SERVICE SYSTEMS

STANDARD TIME ALLOWANCES FOR WARRANTY REPLACEMENTS
CHANGE PERFORMED CHANGE TIME TEST TIME TOTAL TIME

Thermostat/Sensor ½ hr. ½ hr. 1 hr.
Humidity Element ½ hr. ¼ hr. ¾ hr.
Motor ½ hr. 5 min. ½ hr.
Heating Element ½ hr. 5 min. ½ hr.
Contactor/Relay ½ hr. 5 min. ½ hr.
Power Switch ¼ hr. 5 min. ¼ hr.
Indicator Light ¼ hr. 5 min. ¼ hr.

These times are based on servicing a unit that has been installed with allowance made for
access panels on the unit. If the unit is built into a wall that makes servicing very difficult or
impossible without removing part of the counter, wall, trim, etc., the extra time for gaining
access shall be charged to the owner of the unit.

NU–VU® has determined that the listed times, which are based on the period necessary for a
trained service person to perform the work noted, are fair and reasonable. If a problem is not
diagnosed within a half hour, the service person must contact the NU-VU® Service
Department via telephone. The Service Department is available for assistance Monday through
Friday from 7:00 a.m. to 5:30 p.m. (Central Standard Time). Additional time for problem
solving will not be allowed unless this procedure is followed. An appointment for servicing a
unit should be set up since time will not be allowed for waiting to service a unit. Unless the
service person justifies extra time for performing the work noted, charges for work performed
by the service person in excess of the allowed time shall either be billed to the owner of the
equipment or denied.

IMPORTANT: NU–VU® WILL NOT PAY FOR ANY SERVICE CALLS AS
WARRANTY WORK IF A NU–VU® AUTHORIZED SERVICE AGENCY
DETERMINES THAT YOUR UNIT IS SET UP AND OPERATING PROPERLY!

EXTENDED WARRANTY:

Available at an additional charge. Please ask for a quote depending upon the type of warranty
requested.

WARRANTY LIMITATIONS:

NU–VU® will pay parts and labor under warranty for a defective component, but not for:

• Normal operational wear and tear on the following parts:
 Light bulbs and fuses
 Door gaskets, handles and latches

• Damage attributable to customer abuse, including:
 Proofer water pan allowed to run dry and burn.
 Proofer fan motor damaged from not following outlined Dry-Out Procedure.
 Lack of regular cleaning and/or maintenance.

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NU-VU® EQUIPMENT WARRANTY PRO–8 & PRO–16 OWNER'S MANUAL

• Power supply problems, including:

 Insufficient or incorrect voltage or phase.
 Electrical component damage caused by a voltage spike or surge.
 Incorrect installation (i.e., equipment not supplied with separate neutral or

ground as required, or incorrect location of high-voltage leg for 240 volt 3-phase
units).

 Electrical damage from use of an incorrect power supply cord or circuit breaker.

• Operational problems caused by failure to follow procedures outlined in manual.

• A service call if nothing is found to be wrong (all parts work as per spec when
tested).

• Recalibration of temperature/humidity controls (all controls are carefully calibrated
and tested at our facility before shipment).

• Any equipment moved from the place of original installation unless NU–VU® agrees
in writing to continue the warranty after the relocation.

• Ongoing operational adjustments due to changing environmental conditions or
normal wear and tear.

• Overtime charges. NU–VU® will pay straight time only for any work performed on
NU–VU® equipment.

Food service equipment and parts must be installed and maintained in accordance with NU–
VU® instructions. Users are responsible for the suitability of the units or parts to their
application. There is no warranty against damage resulting from accident, abuse, alteration,
misapplication, inadequate storage prior to installation, or improper specification or other
operating conditions beyond our control. Claims against carrier's damage in transit must be
filed by the buyer and, therefore, the buyer must inspect the product immediately upon receipt.

THIS WARRANTY DOES NOT COVER ADJUSTMENTS
DUE TO NORMAL ONGOING USE OF THE UNIT!!!

PARTS RETURN PROCEDURES AND CONDITIONS:

The following procedure shall be followed for the return of parts to the factory for credit
consideration:

• All parts received by NU–VU® must have a completed Return Authorization Form as
supplied by NU–VU® with the part. Complete and return this Authorization Form
with the defective part(s).

• Parts MUST be packed securely so that in-transit damage cannot occur.

• Prepay shipment. Any parts returned collect will be refused by our Receiving
Department. Credit will be issued on proper returns only.

• As soon as parts are tested and confirmed as defective, credit will be issued against
them.

• If the engineering test shows the component is not defective and in good working
condition, it may be returned to you along with your request for payment.

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PRO–8 & PRO–16 OWNER'S MANUAL RECEIPT AND INSTALLATION

RECEIPT AND INSTALLATION

RECEIPT:

It is essential to inspect the unit immediately when it arrives. NU–VU® has placed instructions
on the packaging to help avoid damage in transit. However, accidents and/or negligent
handling can still produce hidden damage. These steps should be followed:
A. Inspect the entire perimeter of the package for damage or punctures to the packing

material. This may indicate damage to the unit inside. Call any and all packing
damage to the attention of the delivery person.

B. If any packing damage is found uncrate the unit immediately in the presence of the

delivery person to determine if the unit is damaged. If any equipment damage is
found indicate the type and amount of damage on the shipping documents and notify
NU–VU® at [phone] immediately after filing a freight claim.

C. Uncrate the unit carefully and check the entire unit (top, back, and both sides) for any

visible or hidden damage.

D. Remove the unit from the shipping pallet and inspect the bottom (including any

casters) for any damage.

E. If any damage is noted after the driver leaves immediately contact the freight

company and NU–VU® Food Service Systems.

F. Check the Proofer Door(s). Make sure the Door is square to the front of the unit,

opens and closes easily, and seals completely. If the Door does not fit or operate
correctly please contact the NU–VU® Service Department for instructions and
assistance in any adjustments that may be necessary.

INSTALLATION:

ELECTRICAL CONNECTIONS - -

A. Check to determine that the power source is the same voltage and phase as that

required by the unit. The electrical requirements for the PRO–8 or PRO–16 are listed
on a grey metallic label affixed to the side of the unit.

B. Move the unit to the area where it will be used. Lift and carry the PRO–8 carefully. If

your unit is equipped with casters simply roll it into position. Do not allow the
door(s) to swing open.

C. For the PRO–8, attach the included 4" appliance legs to the outside corners of the

base and position the unit carefully. Install the PRO–8 or PRO–16 so that it stands
solid and level (adjust the legs or shim the casters as necessary).

D. Carefully set all Controls and Switches to the OFF position.

E. Connect your unit with the attached 120 volt/20 amp power cord [1] to a 120 volt/20

amp receptacle (NEMA 5-20R or the equivalent). Allow enough slack in the power
cord to allow the equipment to be moved about during the installation and any future
required maintenance or service.

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RECEIPT AND INSTALLATION PRO–8 & PRO–16 OWNER'S MANUAL

WATER CONNECTION (AUTOMIST UNITS ONLY) - -

IMPORTANT: NU–VU® strongly recommends that SOFT WATER only be used in any unit
requiring a water supply. Also, a good quality water filter MUST be installed in-line between
the unit connection and the water supply to guard against clogging and mineral build-up in the
components. This is extremely important in areas having hard water.

This equipment is to be installed to comply with the applicable federal, state and local
plumbing codes having jurisdiction.

Please follow these procedures to help ensure a proper water connection:
A. Run any flexible ¼" OD tubing suitable for use with potable water from the water

supply line to the Proofer location. Allow some slack for final unit positioning and
service. Avoid any kinks or strains on the tubing and place the tubing where it will not
be damaged in any way.

B. The tubing end that attaches to the Proofer must not be damaged or deformed in any

way. The cut end should be cut straight and clean with no deforming of the tubing.
All burrs and sharp edges should be removed to ensure a proper and leak-free
connection.

C. Position the tubing so that the tubing runs straight into the intake fitting. Be careful

not to kink the tubing if you bend it, and do not bend the tubing within two (2) inches
of the end.

D. The two-part compression fitting (tapered collar and nut) is placed approximately 1"

onto the tubing so that the collar is inside of the nut and the threaded opening of the
nut is toward the intake fitting.

E. Push the tubing all the way into the intake fitting (approximately ¼") and hold it there

while you thread the compression nut onto the intake fitting. Tighten the compression
nut with an open-end wrench, but do not over–tighten! If the joint leaks when tested
and further gentle tightening does not stop the leak the two-part compression fitting
must be replaced.

Careful attention to these simple procedures will help to ensure an installation without leaks. If
you have any questions or problems please call the NU–VU® Service Department at (800)
338-9886.

INITIAL START–UP - -

A. Set the power switch [11] to the ON position. The blower wheel [21] in the bottom

of the Proofer should begin to rotate in a counter-clockwise direction.

B. STANDARD MANUAL FILL - -

1. Open the Proofer door [31] and remove the Water Pan [25]. Set the Humidity

Control [12] to #5 or #6. The Humidity Control Indicator Light [13] should
illuminate and the humidity element [3] will begin to heat up.

2. Fill the water pan with approximately 2" of water and place it on the humidity

element. Place a reliable thermometer on a shelf in the middle of the Proofer and
close the Door. The water should begin to heat up and in a few minutes a light
fogging should begin to form on the door glass.

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PRO–8 & PRO–16 OWNER'S MANUAL RECEIPT AND INSTALLATION

AUTOMIST OPTION - -

1. Open the Proofer door [31] and set the humidity control [12] to #10. The
humidity control indicator light [13] should illuminate and a light water mist
should be sprayed from the injection nozzle [26] into the blower wheel. In a
second or two the spray will stop and the indicator light will go out. After about
45 seconds the humidity control will cycle again.

2. Reset the humidity control to #3 and allow it to cycle a few more times. The
duration of each water spray should now be decreased. Set the humidity control
to OFF.

C. Set the temperature control [14] to a temperature of 100F. The temperature control

indicator light [15] should illuminate and the heating elements [2] on either side of the
blower wheel should begin to heat up.

D. Place a reliable oven thermometer or the thermocouple of a test instrument in the

center of the unit. Close the door and allow the unit to heat.

NOTE: If you are installing a PRO–8 or PRO–16 with the WARMER option please

reset the temperature control to 150F.

E. Compare the thermometer or test instrument reading to the temperature control

setting when the temperature control indicator light goes out. If they differ by 5 or
less the unit is ready for use. If the difference is more than 5 you may wish to adjust
the temperature control (refer to TEMPERATURE CONTROL, How to Adjust in the
SERVICE AND REPLACEMENT GUIDE). Please call the NU-VU® Service
Department at [phone] before attempting to adjust the temperature control!

F. Return all controls and switches to the OFF position. Make certain the PRO–8 or

PRO–16 is securely positioned or firmly mounted, and that the power cord is securely
attached to the required receptacle. Replace any access panels that may have been
removed during the inspection, installation, or testing of the unit.

IMPORTANT: FAULTY INSTALLATION, IMPROPER USE, OR ANY OTHER
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY CAUSE EQUIPMENT
DAMAGE OR PERSONAL INJURY, AND MAY ALSO VOID ALL OR PART
OF YOUR NU–VU® EQUIPMENT WARRANTY!!!

YOUR PRO–8 OR PRO–16 SHOULD NOW BE READY FOR OPERATIONS!

* * * NOTICE * * *
NATIONAL SANITATION FOUNDATION GUIDELINES REQUIRE THAT ALL
INTERIOR PARTS BE REMOVABLE WITHOUT THE USE OF TOOLS. THIS
EQUIPMENT HAS BEEN FACTORY ASSEMBLED TO SAFELY
ACCOMMODATE ROUGH HANDLING THROUGH SHIPMENT AND ORIGINAL
INSTALLATION. AFTER ANY MAINTENANCE, CLEANING OR REQUIRED
SERVICE WORK THE INTERIOR SHEET–METAL PARTS SHOULD BE RE–
ASSEMBLED AND FASTENED HAND–TIGHT ONLY, BUT STILL REMAIN
TIGHT ENOUGH TO PREVENT ANY RATTLE OR MOVEMENT OF PARTS.

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PRODUCT PREPARATION AND USE OF UNIT PRO–8 & PRO–16 OWNER'S MANUAL

PRODUCT PREPARATION
AND USE OF UNIT

Proper handling of your food product and proper use of the equipment is essential to the
quality of your end product. For purposes of preparation it is important to do the following:

KNOW YOUR OPERATION - -

A. Determine your raw material requirements and storage space.
B. Get a production planner for daily use.
C. Make out a production schedule based on manpower requirements and product

delivery times.

D. Prepare a brief job description for your help and determine what employees will be

trained to handle the various production steps.

KNOW YOUR PRODUCT - -

A. If using a frozen dough supplier consult the manual which describes the initial steps

for the product, as well as proper procedures during proofing and baking or cooking.
If you do not have a manual from your supplier you may obtain a manual of general

information from NU–VU®.
B. Study the manual and make up a list of questions.
C. Contact a representative from the food product supplier to obtain answers to your

questions.
D. Sign up to attend a seminar or training session to learn specifics.
E. Try to get some "hands-on" training time prior to starting up your own operation.
F. In general the same steps used for a thawed frozen product will be applicable to a

scratch or mix program. However, temperature and moisture settings may vary due

to a difference in dough composition and consistency.

KNOW YOUR EQUIPMENT - -

A. Read this manual and study the Operations and Servicing sections. Make sure that the

equipment you are using is installed correctly and is applicable to the product or

products you wish to prepare.
B. Contact NU–VU® if any of the information provided here is not clear or if you have

any problems or questions.

USING YOUR PRO–8 OR PRO–16 AS A PROOFER:

As indicated in your bakery manual some products require "proofing", or a period for the yeast
to act and the dough to rise.

Many factors affect the quality of the end product. For yeast products the major factors are
dough preparation, proofing and baking. The manner in which the dough is prepared affects the
proofing process. If the dough is prepared from basic raw ingredients or from prepared mixes
the user should receive the necessary training in product preparation.

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PRO–8 & PRO–16 OWNER'S MANUAL PRODUCT PREPARATION AND USE OF UNIT

The basic yeast dough should be at room temperature when placed in the Proofer. Your baking
manual gives instructions in dough treatment, proofing and baking. NU–VU® equipment is
suitable for use with all types of dough. Changes in the actual proofing conditions depend on
the conditions in the area of the Proofer as well as the Proofer settings themselves.

All yeast products should be baked immediately after proofing to obtain optimum results.

The

quality of the product that you prepare in your NU–VU® Proofer depends on several factors:

• Initial product quality

• Proper mixing, panning and/or thawing

• Proper proofing

• Correct baking time and temperature.
It is important that any product be properly prepared. Your equipment cannot correct

improper procedures or poor dough product. The manual or instructions you receive from
your product supplier should give general instructions for preparation, proofing and baking
along with specific instructions for the associated product. As a rule of thumb you need to:

• Properly thaw frozen products.

• Properly proof all yeast products.

• Properly bake the products.
Taking shortcuts in the thawing or proofing processes will not permit a successful bake.

Follow these general instructions for proper results:
A. Set out the desired product for thawing (if necessary). Be sure to allow sufficient time

in your production schedule for your Proofer to reach the correct operating
conditions.

TIP: Begin preheating the Proofer when product is first put out to thaw.

IMPORTANT: DO NOT TURN THE HUMIDITY CONTROL ON UNTIL YOUR
PRODUCT IS READY FOR THE PROOFER! RUNNING THE HUMIDITY
CONTROL WITHOUT PRODUCT IN THE PROOFER MAY CAUSE
EXCESSIVE WATER BUILD-UP IN THE BOTTOM OF THE PROOFER, AND
MAY CAUSE PREMATURE FAILURE OF A CONTROL SENSOR, HUMIDITY

OR HEATING ELEMENT, OR THE PROOFER MOTOR!!!

B. Thaw the product:

1. Air thaw the product from 45 to 90 minutes, depending on size and type of
product, size of the load, product spacing, pan spacing, room temperature and
room humidity. Check often and regularly.

2. Dough must not become dry enough to form a skin. Spray with a mist of fresh
clean water if necessary to moisten product, but do not saturate!

3. Thaw until dough is soft and moist all the way through. Product centers should
not be hard or stiff, and should be easily penetrated by finger pressure.

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PRODUCT PREPARATION AND USE OF UNIT PRO–8 & PRO–16 OWNER'S MANUAL

4. Compare thawed product from outside and center of pans. Thaw must be even
and equal to ensure a good proof and bake.

TIP: Begin preheating your oven at the beginning of the proof cycle.
C. Proof the product:

1. Load the product into the Proofer. Push the pans all the way back against the
pan stop and center them from side to side as much as possible to allow proper
air circulation. Note the proofing start time.

2. Check the progress of the proof after about 20 minutes; product should be
starting to rise. Dough should not be so moist as to be sticky or so dry as to form
a skin.

a. If too wet decrease the humidity control setting by ½ or 1. If very wet

(saturated) decrease the humidity control setting by 1 or 1½ and increase
the temperature control setting by 5 (see "d").

b. If too dry increase the humidity control setting by ½ or 1. If very dry

(starting to form a skin) spray the product with clean fresh water until
slightly glazed (see "d").

c. If excessive wetness or dryness continues and changes in the humidity and

temperature control settings have little or no effect you must check the

Proofer's humidity function for proper operation:
i. Does the humidity control cycle ON and OFF?
ii. Does the water pan contain water?
iii. Does the humidity element operate correctly?
iv. With the AUTOMIST option, is water being supplied to the Proofer?
v. With the AUTOMIST option, is the injection nozzle clogged or

damaged in some way?

d. Recheck the proof in 5 to 10 minutes after making adjustments. Readjust as

necessary.

3. Monitor progress of the proof more closely as you approach the end of the

proofing cycle.

NOTE: Do not open a door more often than is required or keep it open any

longer than necessary.

4. Product is generally ready to bake when it is _ to ¾ of the desired finished size.

Bread dough should just stick to your finger when you touch the loaf, but still
pull off cleanly when you withdraw your finger. Dough that is not slightly tacky
or has a flat dull appearance is too dry. Dough that is too sticky or has a shiny or

glazed appearance is too wet. These conditions may be remedied as follows:
a. Too dry:
i. Spray with fresh clean water, OR:
ii. Turn the temperature control OFF, turn the humidity control to

maximum. Check every few minutes until dough is correct.

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PRO–8 & PRO–16 OWNER'S MANUAL PRODUCT PREPARATION AND USE OF UNIT

b. Too wet:
i. Open the Proofer door for a minute or two to vent the excess humidity.

Close the door and monitor the product, OR:

ii. Turn the humidity control to OFF, turn the temperature control to

110. Check every few minutes until dough is correct.

D. Bake the product:

1. Make sure your oven has reached the correct preheat or baking temperature.

2. Open the oven door, load the product quickly, close the oven door securely.

3. Set the proper baking temperature (if different from your preheat temperature)
and the desired bake time minus two minutes.

4. Check your product when the timer expires.

5. Remove product when it is finished and reload with fresh product. Repeat steps
"2" through "5".

6. When production is finished for the day complete the DAILY DRY–OUT

PROCEDURES for the PRO–8 or PRO–16 (refer to the MAINTENANCE AND
CLEANING GUIDE).

USING YOUR PRO–8 OR PRO–16 AS A WARMER:

NU–VU® PRO–8 and PRO–16 Proofers are equipped with a 250F temperature control when
ordered with the WARMER option, and are fully insulated to provide you with an energy
efficient unit. Each is capable of holding your product for several hours at any required
temperature up to a maximum of 200F, or to re-heat your product to a safe and convenient
serving temperature.

Pre-heat the PRO–8 or PRO–16 before use to the temperature you wish to use with your
product. This will allow the unit to do its job faster and more efficiently, giving you a better
product along the way.

For added freshness you might wish to add some moisture to the heated air as you hold or re­heat your product. In manual-fill models add two inches of water to the water pan and set the
humidity control to #2 or #3; in AUTOMIST units (without water pans) set the humidity
control to #1 or #2. This will provide a low level of added humidity to keep your product from
drying out. Use caution: too much humidity can cause baked goods to become "mushy", while
not enough moisture can cause vegetable and meat products to dry out.

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OPERATING INSTRUCTIONS PRO–8 & PRO–16 OWNER'S MANUAL

OPERATING INSTRUCTIONS

The NU–VU® 8-pan PRO–8 and 16-pan PRO–16 Proofers are designed to meet the needs of
most low volume operators, or as an auxiliary unit for larger operations. Each is simple to
install by plugging in its standard 120 volt 20 amp electrical connection, and is just as easy to
operate. These simple basic procedures should guide you through the proofing or warming
processes. If you have any questions, problems or comments please call NU–VU® toll-free at
[phone] and ask for the Service Department. Someone there will be glad to assist you.

PRO–8 OR PRO–16 AS A PROOFER:

A. Set out the desired product for thawing. Be sure to allow sufficient time in your

schedule for both the product and your equipment to reach the correct conditions.

B. Prepare the Proofer:

1. Set the power switch [11] to the ON position at least 20 minutes prior to use.

2. Set the temperature control [14] to the required setting (refer to the table of
General Proofer Settings on page 15).

3. FOR STANDARD MANUAL-FILL MODELS - -

a. Make sure the water pan [25] contains no less than 2" of water. This should

be checked every time you load the unit and at least every other hour during
its use.

b. Leave the humidity control [12] in the OFF position.

FOR OPTIONAL AUTOMIST MODELS - -

a. Make sure the water supply to the Proofer is not interrupted or shut off.

With the humidity control set to #3 or higher the injection nozzle should
spray a fine intermittent water mist into the blower wheel when the humidity
control indicator light [13] illuminates.

b. Return the humidity control [12] to the OFF position.

4. When your product is ready and just prior to loading product into the Proofer
set the humidity control to the required setting (refer to the table of General
Proofer Settings on page 15).

IMPORTANT: DO NOT TURN THE HUMIDITY CONTROL ON UNTIL YOUR
PRODUCT IS READY FOR THE PROOFER! RUNNING THE HUMIDITY
CONTROL WITHOUT ANY PRODUCT IN THE PROOFER WILL CAUSE
EXCESSIVE WATER BUILD-UP IN THE BOTTOM OF THE PROOFER, AND
MAY CAUSE THE PREMATURE FAILURE OF A CONTROL SENSOR,

HUMIDITY OR HEATING ELEMENT, OR THE PROOFER MOTOR!!!

5. The Proofer is ready for use when the control indicator lights go out and a light
fogging begins to appear on the door glass.

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PRO–8 & PRO–16 OWNER'S MANUAL OPERATING INSTRUCTIONS

C. Load the product. Push the product pans all the way to the rear against the pan stop

to allow proper air circulation over and around your product.

NOTE: The control indicator lights will come on again as the temperature and

humidity controls regulate the conditions in the Proofer. This is normal and may
happen several times during a proofing cycle.

D. Monitor the proofing process. Your Proofer is functioning properly if there is a slight

fogging on the door glass. No fogging means your unit may be running too hot, too
dry, or both. Excessive fogging (with water running down the glass) means your unit
may be operating too cold, too wet, or both. Check the product and adjust the
temperature and/or humidity controls as necessary.

TIP: If water accumulates on the floor in front of your unit from drippings out of the

door you are probably proofing with too much humidity. Decrease the setting of the
humidity control. If water on the floor is a constant problem for you please call the
NU–VU® Service Department at [phone].

E. Your product should be baked immediately after it is fully proofed. Yeast products

should be 65% to 75% of the desired finished size at the end of the proof cycle.
Generally speaking yeast products should also be no drier than "silky smooth" or no
wetter than slightly tacky to the touch as they are loaded into the oven.

GENERAL PROOFER SETTINGS

PRODUCT TEMPERATURE HUMIDITY

Croissants 85– 90 #2 – #3
Bread 100– 105 #3 – #4
Rolls 100– 105 #3 – #4
Danish 95 #2 – #3

PRO–8 OR PRO–16 AS A WARMER:

A. Set the power switch [11] to the ON position at least 20 minutes prior to use.
B. Set the temperature control [14] to the desired holding or warming temperature for

your product. Try to preheat the Warmer for at least 15 minutes before you load your
product.

C. FOR STANDARD MANUAL-FILL MODELS - -

1. Make sure the water pan [25] contains no less than 2" of water. This should be
checked every time you load the unit and at least every other hour during its use.

2. Leave the humidity control [12] in the OFF position.

FOR OPTIONAL AUTOMIST MODELS - -

1. Make sure the water supply to the Proofer is not interrupted or shut off. With
the humidity control set to #3 or higher the injection nozzle should spray a fine
intermittent water mist into the blower wheel when the humidity control
indicator light [13] illuminates.

2. Return the humidity control [12] to the OFF position.

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OPERATING INSTRUCTIONS PRO–8 & PRO–16 OWNER'S MANUAL

C. When your product is ready and just prior to loading product into the Warmer set

the humidity control to the desired setting. This will normally be a low level (between
#1 and #3), or whatever is required to keep your product fresh and moist.

D. Load your product into the Warmer to be held or warmed. Push the pans all the way

back against the pan stop to provide for the best air flow around your product, and
close the door [31].

IMPORTANT: DO NOT TURN THE HUMIDITY CONTROL ON UNTIL YOUR
PRODUCT IS READY FOR THE WARMER! RUNNING THE HUMIDITY
CONTROL WITHOUT ANY PRODUCT IN THE WARMER WILL CAUSE
EXCESSIVE WATER BUILD-UP IN THE BOTTOM OF THE WARMER, AND
MAY CAUSE THE PREMATURE FAILURE OF A CONTROL SENSOR,

HUMIDITY OR HEATING ELEMENT, OR THE WARMER MOTOR!!!

F. Check your product periodically. Adjust the temperature and/or humidity control as

you feel necessary to maintain your product.

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PRO–8 & PRO–16 OWNER'S MANUAL MAINTENANCE AND CLEANING GUIDE

MAINTENANCE AND CLEANING GUIDE

MAINTENANCE:

NU–VU® equipment is designed to last for years of useful service. Careful consideration is
given in selecting components for durability, performance and ease of maintenance. For
example, the Motors used in the PRO–8 and PRO–16 have sealed bearings that never need to
be lubricated.

While NU–VU® equipment is designed for minimum care and maintenance certain steps are
required by the user for maximum life and effectiveness:

• Proper installation of the equipment.

• Correct application and usage of the equipment.

• Dry-out Procedures performed daily.

• Thorough cleaning on a regular basis.

MANUAL-FILL DRY–OUT PROCEDURE - -

A. Remove the water pan [25]. Empty and clean the water pan, and set it aside.
B. Wipe up any standing water in the bottom of the unit.
C. Set the power switch [11] to ON. Leave the temperature control [14] and the

humidity control [12] at their normal settings.

D. Leave the door(s) [31] open about 1" to 2" and allow the PRO–8 or PRO–16 to run

for about 30 minutes.

E. Set the power switch to OFF. Leave a door slightly open while the unit is not in use.

AUTOMIST DRY–OUT PROCEDURE - -

A. Wipe up any standing water in the bottom of the unit. You may need to remove the

element cover [22] to do this.

B. Set the power switch [11] to ON. Leave the temperature control [14] at its normal

setting but turn the humidity control [12] to OFF (you may need to also turn OFF the
water supply).

C. Leave the Door(s) open about 2" to 3" and allow the unit to run for about 30

minutes.

D. Set the power switch to OFF. Leave a door slightly open while the unit is not in use.

IMPORTANT: THESE DRY–OUT PROCEDURES MUST BE CARRIED OUT
DAILY TO HELP MAINTAIN YOUR EQUIPMENT IN THE BEST POSSIBLE
CONDITION. THE REMOVAL OF ALL RESIDUAL MOISTURE IN THE
EQUIPMENT CAN EXTEND THE USEFUL LIFETIME OF YOUR
EQUIPMENT!

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MAINTENANCE AND CLEANING GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

CLEANING:

Your NU–VU® PRO–8 or PRO–16 should be cleaned daily, or as soon as possible after a spill
has occurred. It is essential to maintain a clean unit, especially if the public views the unit in
your place of business. The following general guidelines should be used for cleaning:

• The door glass may be cleaned with any good glass-cleaning formula. Be sure to wipe
down the door frame, and to clean behind the gasket on the inside of the door. Dried­on debris or heavy soiling can be removed with hot soapy water followed by a rinse
with clean fresh water. Wipe the door dry to eliminate water spotting.

CAUTION: Do not use abrasive cleaners or you will scratch the door glass!

• Lift out the water pan (manual-fill units only) and remove the element cover by lifting
it up and pulling it out the front of the unit. Wipe up any standing water in the bottom
of the unit. Sweep up any solid particles of debris, taking care to keep them away
from the drain in the floor of the unit.

• The interior of the PRO–8 or PRO–16 along with the Element Cover should be
cleaned on a regular basis (at least once a week) with mild soap and hot water
followed by a thorough rinse with clean fresh water and a sanitizing agent; wiping the
interior dry will help to prevent water spotting. Water spotting and other mineral
deposits should be removed with any mild mineral removal agent as soon as they are
noticeable.

• Replace the element cover and manual-fill water pan. Leave the door slightly open
while the unit is not in use.

NOTE:

NU–VU® has had very good results with a product called JIFFY CLEANER. For standard
cleaning simply spray JIFFY on and wipe off. Heavily soiled areas may require a short period
of soaking. This cleaner is available through NU–VU® (Part #51-0002) or through your local
Rochester/Midland distributor or representative.

* * * CAUTION * * *

NU–VU® DOES NOT RECOMMEND the use of any strong commercial or caustic product
on this equipment. DO NOT allow any type of caustic cleaner to come into contact with any
aluminum parts (such as door frames or interior walls), the silicon rubber door gaskets, or any
of the sealant in the seams and joints. These compounds may cause discoloration and
degradation of these parts resulting in permanent damage. DO NOT use bleach or bleach
compounds on any chromed parts; bleach may damage chrome plating.

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PRO–8 & PRO–16 OWNER'S MANUAL MAINTENANCE AND CLEANING GUIDE

* * * NOTICE * * *
NATIONAL SANITATION FOUNDATION GUIDELINES REQUIRE

THAT ALL INTERIOR PARTS BE REMOVABLE WITHOUT THE USE
OF TOOLS. THIS EQUIPMENT HAS BEEN FACTORY ASSEMBLED
TO SAFELY ACCOMMODATE ROUGH HANDLING THROUGH
SHIPMENT AND ORIGINAL INSTALLATION. AFTER ANY
MAINTENANCE, CLEANING OR REQUIRED SERVICE WORK THE
INTERIOR SHEET–METAL PARTS SHOULD BE REASSEMBLED
AND FASTENED HAND–TIGHT ONLY, BUT STILL REMAIN TIGHT
ENOUGH TO PREVENT ANY RATTLE OR MOVEMENT OF PARTS.

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TROUBLE–SHOOTING GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

TROUBLE–SHOOTING GUIDE

I. The power switch is in the ON position but you have no blower wheel

rotation, moisture or heat:

A. The power switch/circuit breaker [11] may be tripped. Set it to OFF, then return it

to the ON position.

B. Check the main wall breaker or fuse box for a tripped breaker or blown fuse.
C. Remove the control panel [42] on the front of the unit or the bottom access panel

[43] under the base of the unit and check the electrical connections from the power
cord [1] to the power switch. All connections must be clean and tight.

D. Make sure the voltage of your power supply corresponds to the label on the side of

your equipment.

E. If all electrical readings are correct (voltage and phase) and all connections are clean

and tight you must replace the power switch (refer to POWER SWITCH, How to
Replace in the SERVICE AND REPLACEMENT GUIDE).

II. The power switch is in the ON position and you have blower wheel

rotation and moisture but no heat:

A. Make sure the temperature control [14] is set above room temperature.
B. Check the heating elements [2] under the element cover [22]. They should get very

hot to the touch as soon as the temperature control is activated.

C. Check the electrical connections from the power cord [1] to the power switch [11],

to the temperature control and to the heating elements. All connections must be
clean and tight.

D. Check the voltage from the power supply through the power cord, to the power

switch, to the temperature control, and to the heating elements. The voltage should
correspond to the label listing on the side of your equipment. If voltage is present at
the heating elements one or more of the heating elements may be burned out. If
voltage is present at the input side of the temperature control but not at the output
side the temperature control or temperature control sensor may be bad.

E. Check the temperature control sensor for damage. Any damage to the sensor or its

capillary tube will require replacement of the entire control.

F. Check the temperature control for proper calibration. Place an accurate

thermometer in the center of the PRO–8 or PRO–16. Set the humidity control [12]
to OFF and the temperature control to 100 (set the Warmer temperature control
to 150). Read the thermometer when the temperature control indicator light [15]
goes out. If there is a difference of more than 5 but less than 20 between the
control setting and the thermometer reading a simple dial adjustment may solve
your problem (refer to TEMPERATURE CONTROL, How to Adjust in the
SERVICE AND REPLACEMENT GUIDE).

IMPORTANT: PLEASE CALL THE NU–VU® SERVICE DEPARTMENT
BEFORE ADJUSTING OR RECALIBRATING ANY CONTROLS!!!

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PRO–8 & PRO–16 OWNER'S MANUAL TROUBLE–SHOOTING GUIDE

III. The power switch is in the ON position and you have blower wheel

rotation and heat but no moisture:

MANUAL-FILL - -

A. Make sure the water pan [25] contains at least 2" of water and is fully seated on the

humidity element [3] assembly.

B. Turn the humidity control [12] up to #10 to see if the humidity control activates (the

humidity control indicator light [13] should illuminate). If the humidity control
activates the humidity element should get very hot in just a few seconds.

C. Check all electrical connections between the power switch [11], the humidity

control [12] and the humidity element. All connections must be clean and tight.

D. Check the voltage from the power cord [1] connections to the power switch, the

humidity control and the humidity element. If voltage is present at the humidity
element but the element still does not heat up the humidity element must be replaced
(refer to HUMIDITY ELEMENT, How to Replace in the SERVICE AND
REPLACEMENT GUIDE). If voltage is present at the input side of the humidity
control but not on the output side the humidity control or humidity control sensor
may need replacement (refer to HUMIDITY CONTROL, How to Replace in the
SERVICE AND REPLACEMENT GUIDE).

AUTOMIST - -

A. Check for adequate and sustained pressure in the water supply line to the unit up to

the solenoid valve [6]. If there is sufficient pressure at the water source but not at
the solenoid valve the in-line filter may be clogged or the water supply line may be
kinked or pinched.

B. Tap the solenoid valve to loosen and dislodge any sediment that may be stuck in the

inlet or outlet, or is causing the solenoid valve to stick.

C. Remove the element cover [22] to expose the humidity injection nozzle [26].

Unscrew the injection nozzle head and check for clogging in the spray orifice. Clean
the internal screen with a small brush before re-assembly.

D. Check all electrical connections between the power switch [11], the humidity

control [12] and the solenoid valve. All connections must be clean and tight.

E. Check the voltage from the power cord [1] connections to the power switch, the

humidity control, the repeat cycle timer [5] and the solenoid valve. If voltage is
present at the solenoid valve but the valve does not operate the solenoid valve must
be replaced (refer to SOLENOID VALVE, How to Replace in the SERVICE AND
REPLACEMENT GUIDE). If voltage is present at the input side of the humidity
control but not on the output side the humidity control may need replacement (refer
to HUMIDITY CONTROL, How to Replace in the SERVICE AND
REPLACEMENT GUIDE).

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TROUBLE–SHOOTING GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

IV. The power switch is in the ON position but the blower wheel and/or

motor makes noise or does not run:

A. Loosen and lift the element cover [22] away from the blower wheel [21]. If the

motor [4] starts running, or the noise stops, the blower wheel was dragging on the
element cover. Straighten the element cover (if it is bent) or reposition the blower
wheel on the motor shaft.

B. Check the blower wheel for possible dragging on the floor of the unit. Reposition

the blower wheel on the motor shaft as necessary.

C. If the blower wheel is not dragging on the element cover or the unit's floor but still

makes excessive noise the blower wheel may be loose on the motor shaft. Check the
set screws on the blower wheel hub and the screws on the motor mount for
tightness (refer to MOTOR/BLOWER WHEEL ASSEMBLY, How to Replace in the
SERVICE AND REPLACEMENT GUIDE).

D. If the blower wheel is not dragging on anything but turns hard when you spin it by

hand the motor bearings are probably bad and the motor must be replaced (refer to

MOTOR/BLOWER WHEEL ASSEMBLY, How to Replace in the SERVICE AND
REPLACEMENT GUIDE).

E. If the blower wheel is not dragging on anything and turns easily when you spin it by

hand:

1. Check all electrical connections between the power switch [11] and the motor

[4]. All connections must be clean and tight.

Note: it may be necessary to remove the motor assembly for inspection.

2. Check for 120 volts from the power switch to the motor. If the correct voltage

is present but the motor fails to run the motor must be replaced (refer to

MOTOR/BLOWER WHEEL ASSEMBLY, How to Replace in the SERVICE
AND REPLACEMENT GUIDE).

V. The power switch is in the ON position but one or more indicator lights

do not light up:

The indicator lights tell when a system or control is activated. Failure of an indicator light

by itself will not affect the operation of your equipment.
A. Make sure the associated control is activated and working.
B. Check all electrical connections from the control to the indicator light and to the

neutral (WHITE) wire connection. All connections must be clean and tight.

C. If the connections are good and the associated control functions properly the

indicator light itself must be replaced (refer to INDICATOR LIGHT, How to
Replace in the SERVICE AND REPLACEMENT GUIDE).

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PRO–8 & PRO–16 OWNER'S MANUAL SERVICE AND REPLACEMENT GUIDE

SERVICE AND REPLACEMENT GUIDE

Your NU–VU® PRO–8 or PRO–16 Proofer has been designed to be serviced quickly and
easily. In fact, any individual who has average mechanical ability can do the work. Our service
department is also available to you Monday through Friday from 7:00 a.m. to 5:30 p.m.
(Central Standard Time) should you find yourself with a situation or problem other than what
is outlined here. Call NU–VU® at [phone] and ask for our service department to order
replacement parts, ask questions, or offer comments.

This SERVICE AND REPLACEMENT GUIDE has been prepared to cover most normal
service problems. If this "trouble-shooting" information does not provide a solution for your
particular problem we ask that you call us for direct assistance. Calling our service department
before calling in a repair technician can usually save you both time and unnecessary expense.
We want to do everything we can to minimize your "down-time".

You may need to remove one or more access panels for servicing. DO NOT allow any access
panel to drop. When work on the component is finished replace the panel with care, making
sure that all wires are properly placed and not pulled or pinched. If more than one component
is being worked on try to remove only one component at a time.

* * * NOTICE * * *
NATIONAL SANITATION FOUNDATION GUIDELINES REQUIRE

THAT ALL INTERIOR PARTS BE REMOVABLE WITHOUT THE USE
OF TOOLS. THIS EQUIPMENT HAS BEEN FACTORY ASSEMBLED
TO SAFELY ACCOMMODATE ROUGH HANDLING THROUGH
SHIPMENT AND ORIGINAL INSTALLATION. AFTER ANY
MAINTENANCE, CLEANING OR REQUIRED SERVICE WORK THE
INTERIOR SHEET–METAL PARTS SHOULD BE RE–ASSEMBLED
AND FASTENED HAND–TIGHT ONLY, BUT STILL REMAIN TIGHT
ENOUGH TO PREVENT ANY RATTLE OR MOVEMENT OF PARTS.

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SERVICE AND REPLACEMENT GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

POWER CORD, How To Replace:

The power cord [1] very seldom requires replacement. However, should it ever become

damaged or defective in any way a qualified electrician or service technician should be
called in and the NU–VU® Service Department notified immediately.

WARNING: IMPROPER INSTALLATION, REPAIR OR REPLACEMENT MAY
CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY, AND
MAY ALSO VOID ALL OR PART OF YOUR NU–VU® EQUIPMENT
WARRANTY!!!

MOTOR/BLOWER WHEEL ASSEMBLY, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Remove the element cover [22] to expose the blower wheel [21]. Loosen the set

screw on the bower wheel hub and remove the blower wheel from the motor shaft.

B. Remove the screws holding the motor mount in place. Use a pocket knife or other

sharp instrument to cut loose the sealant around the motor mount. Gently pry up on
the motor mount to break it loose from the floor of the unit.

C. Remove the motor assembly [4] far enough to expose and disconnect the wire nut

connections. These wires are interchangeable and do not need to be labeled. Remove
the motor assembly from the unit.

D. Remove all old sealant from the floor of the PRO–8 or PRO–16 with a putty knife or

scraper.

E. Connect the electrical leads to the new motor assembly. Make sure all connections

are clean and tight.
F. Lower the motor assembly into place and fasten it securely with the mounting screws.
G. Apply a bead of silicone sealant (available at any plumbing or hardware store) around

the edges of the motor mount. Smooth it down with your finger. Remove any excess

sealant but make sure that the entire edge of the motor mount is completely sealed to

prevent any water leakage from the floor of the Proofer onto the new motor.
H. Replace the blower wheel on the motor shaft. Tighten the set screw securely; a loose

blower wheel will cause a later service problem.
I. Restore electrical power to the unit and test the new motor/blower wheel assembly

for proper operation. Make sure the blower wheel does not drag on the floor of the

unit.
J. Replace the element cover and retest the motor/blower wheel assembly. Make sure

the blower wheel does not drag on the underside of the element cover.

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PRO–8 & PRO–16 OWNER'S MANUAL SERVICE AND REPLACEMENT GUIDE

HEAT ELEMENT, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Open the door [31], lift out the water pan [25], and remove the element cover [22] to

expose the heating elements [2].

B. Remove the bottom access panel [43] under the base of the unit to gain accessibility

to the element wiring connections. Lay the unit on its side or back if necessary.

C. Trace the wiring leads from the affected element back to the power cord and

temperature control. Disconnect the heating element leads at these points.

D. Remove the defective heat element from its mountings and pull it from the unit. Clean

away any old sealant around the mounting holes in the floor of the unit.

E. Apply a small bead of fresh high-temperature silicone or gasket sealant around the

heat element mounting holes.

F. Position the replacement heat element, embed it in the sealant, and secure it into place

with the mounting screws.

G. Route the element lead wires to the temperature control and power cord connections.

Cut off any excess and reconnect the wires as labeled. All connections must be clean
and tight.

H. Replace the bottom access panel, stand the unit upright, and restore electrical power

to the unit. Test the heating elements for proper operation.

I. Replace the element cover and the water pan.

HUMIDITY ELEMENT, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Remove the water pan [25] and the element cover [22] to expose the humidity

element [3]. Clean the water pan and set it aside.

B. Remove the front control panel [42] or bottom access panel [43] from under the base

of your unit to expose the humidity element wiring connections. You may lay the unit
on its side or back if necessary.

C. Trace the wiring leads from the humidity element back to the humidity control and

power cord. Disconnect the humidity element leads at these points.

D. Pull the disconnected humidity element from the unit (it may be necessary to slightly

bend or twist the element in order to remove it).

E. Thoroughly clean under and around the humidity element mounting area and wipe the

area dry.

F. Insert the wiring leads of the replacement humidity element through the holes in the

side of the humidity element support pan, press the element mounting brackets into
the sealant, and fasten the replacement humidity element into place with the mounting
screws.

G. Connect the humidity element leads to the power cord and humidity control. All

connections must be clean and tight.

H. Replace the bottom access panel, stand the unit upright, and restore electrical power

to the unit. Test the humidity element for proper operation.

I. Replace the element cover and the water pan.

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
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SERVICE AND REPLACEMENT GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

TEMPERATURE CONTROL, How To Adjust:

PLEASE CALL THE NU–VU® SERVICE DEPARTMENT AT [phone]

BEFORE ATTEMPTING TO ADJUST THE TEMPERATURE CONTROL!

A. Place a reliable thermometer (or the thermocouple of a test instrument) on a pan in

the center of the Proofer. Turn the unit ON and set the temperature control [14] to

100F (150F for the Warmer option). Allow the equipment to reach a stable

operating temperature.
B. Compare the temperature control setting to the reading on the test instrument when

the temperature control indicator light [15] goes out. If there is a difference of 20 or

more you will probably need to recalibrate the temperature control. Please call the

NU–VU® Service Department at [phone] for the correct procedures to

recalibrate your NU–VU® equipment!
C. If the difference is less than 20F a simple dial adjustment may solve the problem:

1. Remove the knob of the temperature control by pulling it straight out from the

face of the unit.

2. Hold the black knob securely with the back of the clear plastic dial toward you.

Use a phillips screwdriver to loosen the two screws from ¾ to 1 full turn, but do
not remove them!

3. To increase the temperature inside the unit carefully rotate the index line on the

clear dial clockwise. Each "click" of adjustment on the 110 Proofer dial is equal
to approximately 2 of temperature change in the unit. Each "click" on the 250
Warmer dial is equal to approximately 3 of temperature change. To decrease
the inside temperature rotate the clear dial counter-clockwise.

D. Gently tighten the dial screws and install the knob. Check the temperature control

setting against the test instrument and repeat this procedure if necessary.
E. If these procedures fail to bring the temperature reading within the desired specs you

will have to replace the temperature control and its sensor (refer to TEMPERATURE

CONTROL, How to Replace).

TEMPERATURE CONTROL, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Unplug the unit from its electrical connection and carefully lay it down on its back.
B. Remove the front control panel [42] to gain access to the temperature control wiring.

Remove the bottom access panel [43] to gain access to the sensor routing.
C. Remove the temperature control knob by pulling it straight out from the front of the

control panel.
D. Remove the two mounting screws holding the control to the panel and pull the

control out from behind the panel.
E. Label and disconnect all wiring to the temperature control.

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
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PRO–8 & PRO–16 OWNER'S MANUAL SERVICE AND REPLACEMENT GUIDE

F. Remove the temperature control sensor from its mounting bracket behind the pan

stop [24]. Pull the sensor down through the bottom of the Proofer and remove the
entire control from the unit.

G. Position the replacement temperature control on the back of the control panel and

secure it in place with the two mounting screws. Seat the mounting screws firmly but

do not overtighten!
H. Attach all electrical wiring as labeled. Make sure all connections are clean and tight.
I. Carefully uncoil the sensor tubing, using extreme care not to kink, twist or damage it

in any way! Push the sensor up through the bottom and pull it into the interior of the

unit. Insert the sensor into its mounting bracket and secure it in place.
J. Replace the control panel and fasten it into place with the two mounting screws. Be

careful not to pull or pinch any wires while replacing this panel.
K. Carefully position any excess sensor tubing away from any possible electrical contact

and replace the bottom access panel. Be careful not to pull or pinch any wires while

replacing this panel.
L. Carefully stand the unit upright. Restore electrical power to the unit and test the

replacement control for proper operation. We recommend that any replacement

temperature control be checked for proper adjustment (refer to INITIAL START–UP

and TEMPERATURE CONTROL, How To Adjust).

MANUAL FILL HUMIDITY CONTROL, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Remove the front control panel [42] to gain access to the humidity control wiring and

sensor routing.
B. Remove the humidity control knob by pulling it straight out from the front of the

control panel.
C. Remove the two mounting screws holding the control to the panel and pull the

control out from behind the panel.
D. Label and disconnect all wiring to the humidity control.
E. Remove the humidity sensor from its mounting bracket under the humidity element

[3]. Pull the sensor down through the bottom of the Proofer and remove the entire

control from the unit.
F. Position the replacement humidity control on the back of the control panel and secure

it in place with the two mounting screws. Seat the mounting screws firmly but do not

overtighten!
G. Attach all electrical wiring as labeled. Make sure all connections are clean and tight.
H. Carefully uncoil the sensor tubing, using extreme care not to kink, twist or damage it

in any way! Push the sensor up through the bottom and pull it into the interior of the

unit. Insert the sensor into its mounting bracket and secure it in place.

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
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SERVICE AND REPLACEMENT GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

I. Carefully position any excess sensor tubing away from any possible electrical contact.

Replace the control panel and fasten it into place with the two mounting screws. Be
careful not to pull or pinch any wires while replacing this panel.

J. Restore electrical power to the unit and test the replacement control for proper

operation.

AUTOMIST HUMIDITY CONTROL, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Remove the front control panel [42] to gain access to the humidity control wiring.
B. Remove the humidity control knob by pulling it straight out from the front of the

control panel.

C. Remove the mounting screws holding the control to the panel and pull the control out

from behind the panel.
D. Label and disconnect all wiring to the humidity control.
E. Attach the electrical wiring to the replacement humidity control as labeled. All

connections must be clean and tight.
F. Position the replacement humidity control on the back of the control panel and secure

it in place with the mounting screws. Seat the mounting screws firmly but do not

overtighten!
G. Replace the control panel. Be careful not to pull or pinch any wires while replacing

this panel.
H. Restore electrical power to the unit and test the replacement control for proper

operation.

POWER SWITCH, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Remove the control panel [42] on the front of the Proofer to expose the back side of

the power switch [11] and its wiring connections.
B. Label and disconnect all wires to the defective power switch.
C. Remove the power switch by depressing the spring locking tabs on the top and

bottom of the switch frame where it passes through the control panel. The switch

should now exit through the front of the panel.
D. The replacement power switch must be installed so that the toggle is UP when the

switch is in the ON position. Insert the switch from the front of the control panel and

press it into place until the spring locking tabs are fully engaged with the panel.
E. Reconnect the wires as tagged. The wire at the top switch terminal should come from

the power cord [1]. The wire at the bottom switch terminal should lead to a wire nut

junction. Make sure all connections are clean and tight.
F. Replace the control panel. Be careful not to pull or pinch any wires when replacing

this panel.
G. Restore electrical power to the unit and test the power switch and its related controls

for proper operation.

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PRO–8 & PRO–16 OWNER'S MANUAL SERVICE AND REPLACEMENT GUIDE

INDICATOR LIGHT, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

The indicator lights tell when a system or control is activated. Failure of the indicator light

itself will not affect the operation and performance of your equipment.

A. Remove the control panel [42] on the bottom front of the Proofer to expose the back

side of the indicator lights and their wiring connections.
B. Tag and disconnect the wires leading to the defective indicator light.
C. Remove the defective indicator light by pushing it out through the front of the control

panel.
D. Install the replacement indicator light, wires first, from the front of the panel until the

metal collar on the indicator light is tight against the front of the control panel.

CAUTION: DO NOT PULL ON THE INDICATOR LIGHT WIRES WHILE

INSTALLING THE INDICATOR LIGHT!!!

E. Refasten the wire connections. Make sure all connections are clean and tight.
F. Replace the control panel and fasten it into place with the mounting screws. Be

careful not to pull or pinch any wires when replacing this panel.
G. Restore electrical power to the unit and test the indicator light and its associated

controls for proper operation.

REPEAT CYCLE TIMER (AUTOMIST Option), How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Remove the bottom access panel [43] to expose the control components and their

wiring connections. You may need to lay the unit down on its back to access this

panel.
B. Locate the repeat cycle timer [5] mounted near the front of the unit. Label and

disconnect all wiring to the repeat cycle timer.
C. Remove the slotted mounting screw in the center of the repeat cycle timer and

remove the timer from the unit.
D. Insert the mounting screw through the center of the replacement repeat cycle timer

and fasten the timer to the mounting bracket. Do not over-tighten the mounting

screw or you may crack the timer's plastic case.
E. Reconnect all electrical wiring as it is labeled. All connections must be clean and tight.
F. Replace the bottom access panel. Be careful not to pull or pinch any wires when

replacing this panel.
G. Stand the unit upright. Restore electrical power to the unit and test the repeat cycle

timer and AUTOMIST humidity control [12] for proper operation.

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
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SERVICE AND REPLACEMENT GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

WATER SOLENOID VALVE, How to Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

A. Locate and turn OFF the water supply to the unit.
B. Remove the control panel [42] and/or bottom access panel [43] to service the water

solenoid valve [6].

C. Locate the valve in the bottom of the unit; the solenoid valve is an odd-shaped green

and brass plumbing fixture. Label and disconnect the electrical wiring to the solenoid
valve.

D. Loosen the copper tubing connections to the solenoid valve body and remove the

plumbing from the solenoid valve.

NOTE: place a towel or other absorbent material under the solenoid valve to catch

any water that may drain from the disconnected plumbing. Protect all electrical
components in the area.

E. Remove the solenoid valve mounting screws and remove the solenoid valve from the

unit.

IMPORTANT: Make note of the flow direction before removing the solenoid valve

from the unit.

F. Position the replacement solenoid valve in line with the plumbing and secure it in

place. Make sure the flow direction as marked on the solenoid valve body is the same
as that observed in STEP "E".

G. Position the plumbing connections at the solenoid valve body and snug them into

place, but do not over–tighten! If the joint leaks when tested and further tightening
does not stop the leak the fitting must be replaced. If "pipe dope" is used to create a
leak-free joint use care not to get any "pipe dope" in the plumbing itself. Any excess
may be flushed through the plumbing and cause a solenoid valve to stick or clog an
injection nozzle.

H. Reconnect the electrical wiring as labeled. Make sure all connections are clean and

tight.

I. Restore the water supply to the unit. Check for plumbing leaks on the intake side of

the solenoid valve.

J. Restore electrical power to the unit and activate the associated control. Check the

solenoid valve for proper operation and the plumbing for leaks on the outlet side of
the solenoid valve.

K. Replace the control panel and/or bottom access panel. Be sure not to pull or pinch

any wires when replacing these panels.

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PRO–8 & PRO–16 OWNER'S MANUAL SERVICE AND REPLACEMENT GUIDE

DOOR LATCH, How To Adjust:

Determine if the door [31] is fitting too loose (it will leak excessive moisture and warm air

past the gasket [34]) or too tight (it will not close properly, or is hard to close). If it is too
loose the latch [32] must be adjusted out (away from the unit). If it is too tight the latch
must be adjusted in (towards the unit). Please proceed as follows:

A. Open the door [31] and take careful notice of the adjustment plate position on the

side of the door latch [32].
B. Hold the adjustment plate against the body of the door latch with one hand while you

loosen the three mounting screws with the other hand. Back the screws out

approximately three full turns.
C. CAREFULLY move the latch body IN or OUT under the adjustment plate one notch

at a time. Make sure the door latch stays straight up and down and tighten the

mounting screws. Test the door for proper closing and sealing (refer to the DOOR

TEST PROCEDURE).
D. Repeat steps "B" and "C" if you are not satisfied with the door adjustment. If the

door tests as satisfactory make sure the three mounting screws are tightened securely.

DOOR TEST PROCEDURE:

A. Cut one or two strips of paper approximately 1" wide and 8" to 10" long.
B. Open the door [31] slightly, insert a strip of paper between the door gasket [34] and

door jamb, and close the door.
C. Slowly pull the paper strip out. You should feel some resistance as you pull the strip

from between the gasket and jamb of a properly adjusted door. Test the fit at regular

2" to 3" intervals around the entire door.
D. If you feel NO resistance at a particular spot the door is too loose, you have found a

weak or damaged spot in the gasket, or the jamb has been bent in or damaged in

some way.
E. If you feel HEAVY resistance at a particular spot the door is too tight, or the jamb

has been bent or pulled out.

DOOR LATCH, How To Replace:

A. Loosen and remove the three screws securing the door latch [32] to the door [31].

Remove the door latch and its side adjustment plate.
B. Position the replacement door latch on the side of the door. Align the holes in the

adjustment plate with the holes in the door latch body and secure the adjustment plate

and door latch to the side of the door.
C. Adjust the replacement door latch to obtain proper door sealing and closure (refer to

DOOR LATCH, How To Adjust). Tighten the mounting screws securely.

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
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SERVICE AND REPLACEMENT GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

DOOR LATCH CATCH PLATE, How To Replace:

A. Mark the location of the present latch catch plate on the face of the unit. Remove the

two mounting screws and pull the catch plate and mounting screws from the front of
the unit.

B. Place the replacement catch plate on the face of the unit in the same position as the

original. Insert the two mounting screws and tighten the screws until they are just
snug.

C. Check the position of the catch plate with the latch and tighten the mounting screws

securely.

D. Check the door and door latch for proper operation. Reposition the catch plate

and/or adjust the door latch as necessary.

HINGE, How to Adjust:

A. Close the proofer door [31] and remove the hinge cover from the hinge [33] with the

aid of a small screwdriver.

B. Loosen the screws holding the hinge to the door by two or three full turns. Pry the

adjustment plate away from the hinge (if necessary) to allow the door to move in and
out from the face of the unit.

C. Position the door (and adjustment plate) as necessary to make a firm seal between the

gasket [34] and jamb. Tighten the hinge screws into the door to hold the door in this
position. Check the door for a proper seal (refer to the DOOR TEST PROCEDURE).
Repeat the adjustment procedure if necessary.

D. Tighten the screws securely. Make sure the screws holding the hinge to the front of

the unit are also tight and replace the hinge covers.

HINGE, How to Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY.

A. Close the Proofer door [31] and remove the hinge cover from the hinge [33] with the

aid of a small screwdriver.

B. Remove the screws and adjustment plate holding the hinge to the door. If you are

replacing both hinges on the same door the job will go much easier if you replace one
hinge at a time.

C. Loosen the screws holding the hinge to the front of the unit and remove two of them.

Hold the hinge in position while you remove the last screw. Remove the door hinge
from the unit.

D. Position the replacement hinge on the front of the unit and start the screws into the

frame of the unit. Run them in most of the way but do not tighten them.

E. Start the screws through the hinge locking plate and into the door. Position the door

and hinge where you want them and snug all the screws into place. Repeat steps "A"
through "E" for the next hinge.

F. Check the door for proper sealing (refer to the DOOR TEST PROCEDURE).

Readjust the door as necessary for proper sealing.

G. Replace the hinge covers.

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
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PRO–8 & PRO–16 OWNER'S MANUAL SERVICE AND REPLACEMENT GUIDE

DOOR GASKET, How To Replace:

Follow these instructions to correctly install your door gasket with minimal problems. Use the
installation kit provided. If you have any problems or questions call NU–VU® at (800) 338–
9886 and ask for the service department.
A. Remove all pieces of the old gasket. Thoroughly clean the door frame in the area of

the new installation. Remove the old sealant and any baked-on deposits.

IMPORTANT: DO NOT DISASSEMBLE THE ACTUAL DOOR FRAME WHEN
REPAIRING OR REPLACING THE DOOR GASKET!!!

B. Pre-cut the replacement gasket to a size slightly longer than you require.
C. Put a small amount of soap water into and around the slot that the new gasket will fit

into (a small trigger spray bottle works well). This step is optional but will help in the

installation.
D. Position the new gasket over the slot, allowing the ends to extend past the end of the

slot. Press the mounting flange down into the slot on the door frame. Use a roller tool

to force the mounting flange into the slot by working the tool back and forth along

the gasket. Make sure the gasket mounting flange is completely fitted into the slot

and that the gasket is free to slide back and forth in the slot.

IMPORTANT: DO NOT STRETCH OR PULL ON THE GASKET DURING
THE INSTALLATION PROCESS. THIS WILL LATER CAUSE THE TRIMMED

CORNERS TO SEPARATE AND PULL APART!!!

E. Use a sharp knife or a single-edged razor blade to cut the ends of the gasket at a 45

angle (you can use the mitered corner joint on the door as an angle guide). Cut the

gasket about ¼" longer than the required length and work the excess back into the

slot. This extra gasket will help to create a nice tight corner joint, and allows for any

follow-up trimming that may be necessary.
F. Work your way around the entire door (or the section of the door having the gasket

replaced). Make sure the gasket is just tight into the corners. A bulging joint or

pucker along the gasket indicates a gasket section that is cut too long. Joints that pull

apart indicate a gasket section (or sections) that is cut too short.

IMPORTANT: MAKE SURE THAT THE GASKET AND DOOR FRAME ARE

COMPLETELY CLEAN AND DRY BEFORE APPLYING ANY SEALANT!!!

G. Seal the corner joints after the entire gasket is properly fitted. Pull the joints apart

only enough to put sealant on all the cut edges only. Allow the gasket joint to come

together. Smooth out any excess sealant to form a smooth surface on the face of the

gasket. Add more sealant to any spots as necessary and smooth them down.

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SERVICE AND REPLACEMENT GUIDE PRO–8 & PRO–16 OWNER'S MANUAL

H. A quality sealant will be dry to the touch and tack-free in one to two hours after

application. However, it will not be completely cured until six to eight hours later. We
recommend that you wait until after your sealant is completely cured before using
your Proofer.

CAUTION: SOME SEALANTS MAY GIVE OFF ACIDIC FUMES AS THEY
SET UP AND CURE. THESE FUMES MAY CAUSE IRRITATION TO THE
EYES AND/OR NASAL PASSAGES. USE CAUTION WHEN OPENING YOUR
UNIT AFTER WAITING FOR ANY SEALANT TO SET AND CURE!!!

CASTER, How To Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY

CAUSE SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!

The locking casters [45] used on the PRO–16 are maintenance free. However, it is

occasionally necessary to replace one or more due to shipping damage or improper
handling. This can best be done by laying the entire unit on its back or side.

TO LAY UNIT DOWN:

A. Disconnect any service lines (electrical or water) to the unit.
B. Move the unit to a level surface that provides a good work area.
C. Engage all caster locks.
D. Remove any unnecessary weight from the unit such as pans, trays and shelves.
E. Place a 2x4, stacked lumber or any similar item BEHIND the rear casters and

immediately under the back bottom edge of the unit. Have another piece handy to
place under the top of the unit.

F. With extreme care gently tilt the unit back onto the spacer behind the casters and

lower it to the floor. Allow it to rest on the second spacer (keep this spacer as close
to the top of the unit as possible to avoid damage to the outside back).

G. Complete the repair and reverse this procedure to stand the unit upright. It is a wise

precaution to station someone in front of the unit while it is being raised to prevent
the unit from skipping out at the bottom.

TO REPLACE CASTER:

A. Remove all weight from the affected caster by laying the unit on its back or side.
B. Remove the bottom access panel [43] under the base of the unit to gain access to the

caster mounting bolts and nuts.

C. Use a 7/16" wrench or socket to remove the four nuts on the caster mounting bolts.

Remove the mounting bolts from the base of the unit and remove the defective caster.

D. Position the replacement caster under the unit base and insert the mounting bolts.

Install and tighten the nuts.

D. Replace the bottom access panel and stand the unit upright.

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
page 34 SALES FAX [phone] • SERVICE FAX [phone] [phone]

REPLACEMENT PARTS LIST

(PRO–8 & PRO–16)

Reference # Description Replacement Part #
ELECTRICAL COMPONENTS:

1 Power Cord Assembly ........................................................................................ 50-0375

2 Heating Element (120v 600w) ........................................................................ 60-0001-7

3 Humidity Element (120v 600w) .................................................................... 60-0001-15

Humidity Element (240v 600w) .................................................................. 60-0154-1-A

4 Motor Assy ....................................................................................................... 250-2008

Motor Assy (240V) ........................................................................................... 250-2013

5 Repeat Cycle Timer (AUTOMIST Option) ........................................................ 66-8012

6 Water Solenoid Valve (AUTOMIST Option) ................................................. 50-0308-1

Water Solenoid Valve (240V AUTOMIST Option) ....................................... 50-0307-1

CONTROL COMPONENTS:

10 Contactor ............................................................................................................ 66-2013

Contactor (240v) ................................................................................................. 66-2017

11 Power Switch ...................................................................................................... 50-1355

Power Switch (240v) .......................................................................................... 66-3008

12 Humidity Control:

Manual Fill .............................................................................................. 252-4004

AUTOMIST Option ............................................................................... 252-3003

Control Knob .......................................................................................... 253-2003

13 Humidity Control Indicator Light ....................................................................... 50-0029

Humidity Control Indicator Light (240v) ............................................................ 50-0030

14 Temperature Control:

Proofer (110) ......................................................................................... 252-4002

Warmer Option (250) ............................................................................ 252-4004

Control Knob ............................................................................................ 50-0727

15 Temperature Control Indicator Light .................................................................. 50-0029

Temperature Control Indicator Light (240v) ...................................................... 50-0030

INTERIOR COMPONENTS:

25 Water Pan ........................................................................................................... 50-0074

26 Water Injection Nozzle (AUTOMIST Option) ................................................... 31-0033

27 Shelf (PRO–16X only) ........................................................................................ 01-0125

DOOR COMPONENTS:
31 Door:

PRO–8, PRO–16 ...................................................................................... 01-0650

PRO–16X ................................................................................................. 01-9967

32 Latch/Catch ......................................................................................................... 50-1346

33 Hinge ................................................................................................................. 254-3001

34 Gasket ............................................................................................................... 254-1001

EXTERIOR COMPONENTS:

44 Appliance Leg (PRO–8) ...................................................................................... 50-0628

45 Casters (PRO–16) ............................................................................................... 50-0058

47 Drain Pan ............................................................................................................ 50-0547

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
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ELECTRICAL SCHEMATICS PRO–8 & PRO–16 OWNER'S MANUAL

NU-VU® FOOD SERVICE SYSTEMS MENOMINEE, MICHIGAN 49858
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