Nu-Vu RM-4T, RM-5T, RA-5T, RA-4T Owner's Manual

For NU–VU® Models:

RM-4T
RM-5T

RA-4T
RA-5T

OWNER'S
MANUAL

: NU-VU

5600 13th STREET

MENOMINEE, MICHIGAN 49858-1029

[phone] FAX [phone]

November 2009

RM/RA SERIES

TABLE OF CONTENTS

ABOUT YOUR NUVU® EQUIPMENT ........................................................ 1

WARRANTY ................................................................................................ 5

RECEIPT AND INSTALLATION ................................................................. 8

START–UP .................................................................................................. 11

OPERATING INSTRUCTIONS ................................................................... 12

MAINTENANCE AND CLEANING GUIDE ................................................. 14

SERVICE AND REPLACEMENT GUIDE ................................................... 16

REPLACEMENT PARTS LIST .................................................................... 16

ELECTRICAL SCHEMATICS ..................................................................... 18

RM/RA SERIES OWNER'S MANUAL

ABOUT YOUR NUVU® EQUIPMENT

NUVU® units are in use throughout the United States and Canada and have been exported to other
parts of the world. NUVU® 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. NUVU ® currently manufactures an entire line of 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 on-site at
the Menominee facility, at a dealer's showroom, or on the customer's premises.

NUVU® OVENS

NUVU® offers the widest range and variety of equipment through the varied use of heat,

moisture, steam and smoke options. NUVU® 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.
This is embodied in the V–AIR principle.

V–AIR IN OPERATION:

V–AIR stands for Versatile Air Movement equipment NUVU® has, in the V–AIR line, combined
quality construction, long life components, superior performance, multiple use operation and
amplified operating procedures to produce the finest equipment available. This means the end user
has the best of ALL worlds.

One of the previous problems of circulating air ovens was the inability to bake dough products
evenly without turning the pans or taking the pans out of the oven at different times. In the standard
convection oven the air is blown around randomly and thus the different shelves have different
conditions.

NUVU® offers the V–AIR series of Ovens with a patented positioned air flow system. This
patented system enables the user to load the Oven completely with pans having the same product,
bake, and remove the entire load at the same time. This is possible because the air is directed in at
each shelf through holes in the sidewalls. Because each shelf receives essentially the same air
pattern the bake is uniform.

Since the air flow is in a directional pattern the baking times are reduced over conventional deck
and tray ovens.

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 NUVU® manufacturing facilities.
If contacted NUVU® will provide information on the nearest location and availability. In the event

that a customer desires to test at his place of business arrangements can be made based on a
specifically defined program. 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

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RM/RA SERIES OWNER'S MANUAL

customer can determine the suitability for his program. Technical product information can be
generated by customer-requested testing of various products and equipment.

CONSTRUCTION:

The Ovens and of the V–AIR series are constructed of stainless steel both inside and outside. All of
the exterior frame members and interior shells are welded to provide lifetime construction,
durability and rigidity. Components such as temperature and humidity controls, timers, 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 parts.

SHIPMENT:

NUVU® 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 NUVU freight is paid
by the buyer F.O.B. the NUVU plant in Menominee, Michigan. Shipping time may vary depending
upon the original shipping point, time of year and shipper/shippers used.

NVUV® works closely with all of its customers in tracing shipments to speed delivery and
minimize handling. NVUV® 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.

NVUV® RM/RA SERIES:

The NVUV® RM/RA series consists of several different platforms. There is the 4 or 5 pan
tabletop oven available with manual or programmable controls. All these choices are offered with
a pass through option. Using the same footprint but different internal configurations the following
models are offered:
RM-4T - 4 pan oven with manual controls, 5” pan spacing.
RM-5T - 5 pan oven with manual controls, 4” pan spacing.
RA-4T - 4 pan oven with programmable controls, 5” pan spacing.
RA-5T - 5 pan oven with programmable controls, 4” pan spacing.

The NVUV RM/RA series is constructed of stainless steel inside and outside for minimum
maintenance and maximum durability. The 4 pan configuration can hold up to three (4) 18" x 26"
full-size sheet pans or (8) 13" x 18" half-size sheet pans on the self-contained stainless steel side
racks. The 5 pan configuration can hold up to three (5) 18" x 26" full-size sheet pans or (10) 13" x
18" half-size sheet pans on the self-contained stainless steel side racks.

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NVUV® EQUIPMENT WARRANTY

NVUV® 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 NVUV®, except by written statement from an officer of NVUV®.

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

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

The TNVUV® 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, welded frames and other parts for the lifetime of the unit. The unit is made
from welded stainless steel (or aluminum where applicable) and is warranted to retain the integrity
of its construction during its time of use in the original location of installation. NVUV® reserves
the right to provide the method of, and person to make, any required repairs.

PARTS - -

This limited warranty covers certain electrical, electronic, and mechanical parts for the time
periods described 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 NVUV® factory or at an authorized NVUV® dealer or service agency, NVUV® 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 NVUV®.

LABOR - -

We require that you call our NVUV® Service Department at (906) 863-441 for service
authorization BEFORE you call any service agency if you wish to claim a labor expense under the
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 appropriate 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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NVUV®

STANDARD TIME ALLOWANCES FOR WARRANTY REPLACEMENTS

CHANGE PERFORMED CHANGE TIME TEST TIME TOTAL TIME

Oven Motor/Rebalance Fan 1 hr. ½ hr. 1½ hr.
Oven Heating Element 1 hr. ½ hr. 1½ hr.
Control Circuit Board ½ hr. ½ hr. 1 hr.
Control Sensor ½ hr. ½ hr. 1 hr.
Timer and/or Buzzer ½ hr. 5 min. ½ hr.
Change/Adjust Micro Switch 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.

NVUV® has determined that the listed times, which are based on the period of time 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 NVUV® 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: NUVU® WILL NOT PAY FOR ANY SERVICE CALLS AS
WARRANTY WORK IF A TOASTMASTER® 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:

NVUV® will pay for parts and labor under warranty if there is a defective component, but not for:

• Parts damaged in shipment beyond the confines of the NVUV® factory.

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

• Damage attributable to customer abuse, including but not limited to ­  Lack of regular cleaning and/or maintenance
 Leaks resulting from the removal of sealant in the unit

• Power supply problems, including -

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 Insufficient or incorrect voltage
 Damage to electrical components caused by a power surge or spike
 Incorrect installation (i.e., separate neutral and ground not supplied, or incorrect

location of high-voltage power leg for 240-volt 3-phase units)

 Damage to electrical components resulting from use of an incorrect power supply

cord or circuit breaker

• Operational problems resulting from customer's failure to follow established procedures
outlined in the Owner's Manual.

• A service call if nothing wrong is found (parts still work per spec when tested).

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

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

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

• Any overtime charges. NUVU® will pay straight time only for any work performed on
NUVU® equipment.

Food service equipment and parts must be installed and maintained in accordance with NUVU®
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 ON-GOING USE!!!

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 NVUV® must have a completed Return Authorization Form as
supplied by NUVU® 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.

RECEIPT AND INSTALLATION

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RECEIPT:

It is essential to inspect the unit immediately when it arrives. NUVU® has placed instructions on
the packaging to help avoid damage in transit. However, accidents or negligent handling can
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 damage is found indicate the
type and amount of damage on the shipping documents and notify NUVU® at (906) 863­4401 immediately after filing a freight claim.

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

visible or hidden damage.
D. Remove the unit from the shipping pallet and inspect the bottom for any damage.
E. If any damage is noted after the driver leaves immediately contact the freight company

and NUVU® Food Service Systems.
F. Check the Door(s). Make sure each Door closes completely, and that the Door Gasket

seals firmly (refer to the DOOR TEST PROCEDURE under DOOR LATCH, How to

Adjust in the SERVICE AND REPLACEMENT GUIDE). If it does not close and seal

properly please contact the TOASTMASTER® Service Department for instructions and

assistance in any required adjustments.

INSTALLATION PROCEDURES:

NUVU® recommends that your RM/RA series model be installed by a licensed professional to
ensure proper positioning and connections. Failure to install your RM/RA series model properly
may void your product warranty.

Position the unit where it will be operated, allowing adequate clearances around the unit for proper
cooling and operation. NUVU® recommends a minimum clearance of 4" at the back and on each
side of the Oven. Make sure the unit sits level and solid. Adjust or shim the Casters or Oven base
as necessary.

Check to determine that the power source is the same voltage and phase as that indicated on the
label on the side of the unit. If the voltage and/or phase is not the same call NUVU® service
department.

IMPORTANT: DO NOT ATTACH UNIT IF THE POWER SOURCE DOES NOT
COINCIDE WITH THE UNIT LABEL!!!

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#1 Installation

A qualified installer or electrician should remove the Top Panel of the unit to expose the power
terminal connections. A copy of the unit wiring schematic is attached to the inside of the unit near
the power terminal connections.

IMPORTANT: ALL POWER SHOULD BE TURNED OFF AT THE WALL

BREAKER WHILE THE UNIT IS BEING CONNECTED!!!

#2 - Electrical Connections

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The oven should be connected according to all national and local electrical codes, either through a
plug-type connection or direct wiring. All connections must be made with COPPER WIRE ONLY
in the correct gauge for the application. Provide enough slack in the wiring to allow for equipment
to be moved about during installation and any future required servicing.

The following steps should be carefully observed (refer to Illustration #2 above):
A. Take note of the labeling on the terminal connections (Line 1, Line 2, Line 3, Neutral) at

the Power Terminal Block.

B. Carefully identify the power source connections and attach them to the appropriate

terminals. Make sure all connections are clean and tight.

IMPORTANT: IN ANY 240-VOLT THREE PHASE SYSTEM THE WILD LEG

(240 VOLTS TO NEUTRAL) MUST ALWAYS BE CONNECTED TO L-2!!!

C. . Be sure the unit is properly grounded BEFORE USE by attaching a grounding wire to

the Ground Lug next to the Power Terminal Block.

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

main power supply.
E. Check the voltage at the connections on the Power Terminal Block with a voltmeter to

confirm conformity with the unit label requirements. If all readings are correct the unit is

ready for its INITIAL START–UP. If the readings DO NOT coincide with the unit

requirements you must call the NU–VU® Service Department.
F. Replace the Top Panel on the unit. Be careful not to pull or pinch any wires while

installing the panel.
G. Complete the installation of the optional water supply to the unit (refer to

INSTALLATION OF WATER SUPPLY immediately following).
H. Push the unit back into place. Make sure the unit is level and solid.

INSTALLATION OF WATER SUPPLY:

IMPORTANT: FAILURE TO FOLLOW THESE INSTRUCTIONS OR
IMPROPER INSTALLATION MAY CAUSE SEVERE EQUIPMENT DAMAGE
OR EVEN PERSONAL INJURY, AND MAY ALSO VOID ALL OR PART OF
YOUR TOASTMASTER® EQUIPMENT WARRANTY!!!

IMPORTANT: NUVU® 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. The water filter may be
installed at the water source or adjacent to the Water Inlet Fitting on the rear or side of the unit,
whichever is more convenient for you.

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

Please follow these steps to connect a water supply to your unit:
A. Run ¼" tubing from the water supply line to the unit location. Allow some slack for final

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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 unit 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 fit and leak-free connection.

C. Position the tubing so that the tubing runs straight into the Water 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 Water Intake Fitting.

E. Push the tubing all the way into the Water Intake Fitting (approximately ¼") and hold it

there while you thread the compression nut onto the Water Intake Fitting. Tighten the
compression nut with an open-end wrench. 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 NUVU® Service Department at [phone].

IMPORTANT: THIS UNIT NEEDS TO BE INSTALLED WITH ADEQUATE
BACKFLOW PROTECTION TO COMPLY WITH APPLICABLE FEDERAL,
STATE AND LOCAL CODES.

IMPORTANT: THIS UNIT REQUIRES A SCREEN OF AT LEAST 100 MESH
TO BE INSTALLED IMMEDIATELY UPSTREAM OF ALL CHECK VALVE
TYPE BACKFLOW PREVENTERS USED FOR WATER SUPPLY
PROTECTION. THE SCREEN SHALL BE ACCESSIBLE AND REMOVABLE
FOR CLEANING OR REPLACEMENT.

INITIAL START–UP

STANDARD OVEN:

A. Unscrew the glass Light Lenses in the rear of the Oven. Install the included Appliance

Bulbs (if they are not already installed) and replace the Lenses. Close the Oven
Door securely.

B. Engage the main electrical and optional water supplies.
C. Set the Oven Power Switch to ON. The interior of the Oven should illuminate and the

Oven Blower Wheel should begin to rotate.

D. Open the Oven Door. The Motor/Blower Wheel should come to a stop as the Door opens

and the Micro Switch in the Door Jamb is released.

E. Place a reliable oven thermometer on a baking pan in the center of the Oven.

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F. Close the Oven Door securely. The Motor/Blower Wheel should restart.
G. Set the Oven Temperature Control to 350F. The Temperature Control Indicator Light

should illuminate and the Oven should begin heating. You may continue with the
Oven Start-Up and even begin the Proofer Start-Up while the Oven heats.

H. Turn the knob of the Oven Timer to 20 minutes, and then set it back to 5 minutes. Allow

the Timer to count down and its Buzzer Alarm to sound.
I. Check the thermometer reading against the Temperature (Bake) Control setting when the

Control Indicator Light goes out. If the readings differ by more than 10 the Temperature

Control may need a simple adjustment. Please call the TOASTMASTER® Service

Department BEFORE attempting calibration or adjustment of the control.

NOTE: Please allow the Temperature Control to cycle two or three times to allow the

Oven temperature to stabilize BEFORE comparing the readings.

J.

Return all Oven controls and switches to their OFF positions.

CAUTION: STAND AWAY FROM THE FRONT OF THE OVEN WHEN
OPENING THE OVEN DOOR AFTER A BAKING CYCLE TO AVOID

EXPOSURE TO ESCAPING HEAT AND STEAM!!!

YOUR OVEN SHOULD NOW BE

READY FOR FULL OPERATIONS!!!

OPERATING INSTRUCTIONS

A. Set the Motor Speed Switch (if equipped) for the desired air flow and the Oven

Power Switch to the ON position. Determine the recommended temperature for

the product to be baked and set your Temperature Control accordingly. When

the desired temperature is reached (approximately 15-20 minutes after start-up)

the Oven Temperature Control Indicator Light will go out.

NOTE: At the beginning of each day you may want to pre-heat your Oven 25

higher than the required baking temperature. Since your Oven requires time to

reach the proper operating temperature you should plan ahead so your Oven

and product are ready at the same time. It is not necessary to reset to pre-heat

temperature with each load unless you are baking new items at a much higher

temperature.

B. Load your Oven from the top shelf down. If the top shelf is too high to be

reached easily an empty pan should be placed on the top shelf. Push the pans all

the way to the rear of the Oven (against the stops at the ends of the Pan Slides).

Keep the Oven Door closed unless loading or unloading to maintain Oven

temperature and minimize energy usage.
C. Set the 60–Minute Timer for the estimated baking time less one to two minutes.

This will assure an indication from the Buzzer Alarm prior to the actual end of

the baking cycle and help prevent over-baking.

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D. As soon as the product is finished open the Oven Door and remove the product

quickly. Immediately close the Oven Door to minimize temperature loss.

INTERNAL STEAM OPTION:

This option uses a push-and-release Steam Switch to activate an internal interval timer
along with a Solenoid Valve. This allows a fine water mist to be sprayed into the Oven
Blower Wheel where it is immediately vaporized and circulated throughout the hot Oven.

The INTERNAL STEAM option can be utilized any time in the processing cycle (at the
beginning, in the middle, or at the end).

To operate the INTERNAL STEAM option:
A. Increase the setting of the Oven Temperature Control just enough so that the

Temperature Control Indicator Light comes on. The Oven should be heated to at
least 200F.

B. Press and release the spring-loaded Steam Switch to activate the internally-timed

water spray. The Solenoid Valve will open, allowing water to be sprayed into the
hot Oven where it flashes into steam. The water spray will automatically
discontinue after a few seconds. The Steam Switch can be pressed again to
repeat the process as many times as you feel necessary.

C. Reset the Oven Temperature Control back to the original temperature (if

necessary).

COOK–N–HOLD OPTION:

The COOK–N–HOLD OPTION allows you to cook a product at one temperature and to
hold that product at a lower temperature.

The 24-Hour Timer along with both the Temperature Control and Hold Control must be
set in order for you to utilize the COOK–N–HOLD option features of your NU–VU®
Oven. The Oven Temperature Control must be set at the desired initial cooking
temperature. The Hold Control must be set at the temperature you wish the product to be
held at.

IMPORTANT: Your TOASTMASTER® Oven is well insulated and will maintain

the original cook temperature for ½ hour to 1 hour depending on the product,
product density and load size. The temperature will not instantly drop to the
hold setting at the end of the timed cook cycle. Plan your cook temperature,
cook time and hold temperature accordingly to obtain the best product!

Please follow these general guidelines for preparing meats, fish or fowl:
A. Set the Oven Power Switch to ON.
B. Set the Oven Temperature Control to the desired cook temperature.
C. Set the 24–Hour Timer for the length of time you want your product to cook.
D. Set the Hold Control to the desired holding temperature.
E. At the expiration of the cooking time the Hold Control will automatically take

over and maintain your product at the set hold temperature. Remember, the
internal Oven temperature will not drop immediately to the hold temperature, but
will slowly decrease over a period of time until it matches the set hold
temperature.

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F. The product will be maintained at the set hold temperature until you remove it

from the Oven, change the setting on the Hold Control or turn the Oven OFF.

NOTE: If you desire to pre-heat your Oven before loading any product the 24–

Hour Timer must be set for enough time to pre-heat your unit to the desired

temperature. Load the product when the Oven is pre-heated and then reset the

24–Hour Timer to the correct cook time.

IMPORTANT: YOUR OVEN WILL NOT HEAT IF THE 24 HOUR TIMER IS
SET TO OFF. THE OVEN TEMPERATURE CONTROL WILL FUNCTION
ONLY WHEN THE 24 HOUR TIMER IS SET FOR A RUN TIME BETWEEN
"1" AND "24". THE HOLD CONTROL WILL FUNCTION ONLY WHEN THE

24 HOUR TIMER IS SET TO "0".

MAINTENANCE AND CLEANING GUIDE

MAINTENANCE:

NUVU® 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, both the
Oven Motor and Proofer Motor have sealed bearings and never need to be lubricated. While
NUVU® 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.

• Thorough cleaning on a regular basis.

CLEANING:

Your RM/RA series model 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

WARNING: WE TRY TO “BURN OFF” ANY MANUFACTURING OILS INSIDE OF YOUR
OVEN BEFORE SHIPMENT. HOWEVER, SOME OILS MAY REMAIN, CAUSING YOUR
OVEN TO SMOKE DURING INITIAL OPERATION. SIMPLY ALLOW THE OVEN TO RUN
AT 350°F FOR AN HOUR OR TWO TO COMPLETE THE BURN-OFF AND THE SMOKING
SHOULD STOP. WE APOLOGIZE FOR ANY INCONVENIENCE THIS MAY CAUSE.

of business. The following general guidelines should be used for cleaning:

OVEN - -

• The Oven Door glass may be cleaned with any good glass-cleaning formula. The two

panes of glass easily separate without the use of tools. Simply secure the door with one

hand, place the other hand in the center bottom of the inner door and lift up and out. The

inner door will hinge away from the outer door. Be sure to wipe down the Door Frame,

and to clean behind the Door Gasket on the inside of the Oven Door.

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CAUTION: DO NOT USE ABRASIVE CLEANERS ON THE DOOR OR YOU
MAY SCRATCH THE GLASS!!!

• The Oven interior should be wiped out daily. Remove the Oven Element Cover once a
month for inspection and cleaning (if you have the INTERNAL STEAM option you should
remove, inspect and clean the element Cover weekly):

1) Remove the thumbscrews along the top edge and pull the Element Cover down.

2) Pull the Element Cover out through the front of the Oven.

• Inspect the Oven ceiling, the Blower Wheel, the Sidewalls and the Element Cover for
mineral deposits. Wipe these parts down with hot water and a mild soap, followed by a
rinse with clean fresh water and a mild sanitizing agent; wiping the interior dry will help
to prevent water spotting. Water spotting and any other mineral deposits should be
removed with any mild mineral removal agent as soon as they are noticeable.

• Replace the Oven Element Cover; make sure the small lip on the back of the Element
Cover slides into the support strip welded to the ceiling of the Oven and that the Element
Cover is pushed all the way back and up for a tight fit. Secure it in place with the
thumbscrews.

• The Oven Sidewalls should be removed on an as-needed basis for interior cleaning and
mineral removal. Replace them the same way as the Element Cover (small back lip in the
support strip, tight to the sides and all the way back).

EXTERIOR - -

• All exterior glass may be cleaned with any good glass-cleaning formula.

• The exterior metal surfaces can be cleaned with any good stainless steel cleaner or
polish, or with hot water and a mild soap followed by a thorough rinse with clean fresh
water if it is very soiled.

CAUTION: DO NOT ALLOW WATER NEAR THE CONTROL SURFACES!!!

* * * CAUTION * * *

NUVU® 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), the silicon rubber Door Gaskets, or any of the sealant in the Oven
and Proofer 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.

NUVU® MENOMINEE, MICHIGAN 49858
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RM/RA SERIES OWNER'S MANUAL

SERVICE AND REPLACEMENT GUIDE

Your RM/RA series model 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 5:00 p.m. (Central Standard Time)
should you find yourself with a situation or problem. Call NUVU® at [phone] and ask for
the Service Department to order replacement parts, ask questions, or offer comments.

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 an Access Panel for servicing. DO NOT allow any Access Panels 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.

REPLACEMENT PARTS LIST

(RM/RA SERIES)

Reference # Description Replacement Part #

ELECTRICAL COMPONENTS:

1 Power Terminal Block (each pole) ..................................................................... 50-1332

2 Ground Lug ......................................................................................................... 50-1329

3 Light Fixture 240v & 12v:

Socket, globe, gasket, bulb 240v...……………………………….… ..... 252-7005

Replacement bulb only 240v ..................................................................... 50-1025

Light Cover Globe only 240v ............................................................. 50-1021

Light Cover Gasket only 240v ........................................................ 70-0354-A

Socket, globe, gasket, bulb 12v...……………………………….… ....... 112-9175

Replacement bulb only 12v ....................................................................... 50-1412

Light Cover Globe only 12v ............................................................... 50-1447

Light Cover Gasket only 12v........................................................ 112-0318-A

12v light transformer ................................................................................. 112-9184

4 Oven Heating Element:

208v, 3500w ......................................................................................... 60-0149-A

240v, 3500w ......................................................................................... 60-0150-A

5 Oven Motor ..................................................................................................... 250-1063

6 Motor Speed Board ………………………………………………. ................. 66-1080

7 Door Micro Switch ........................................................................................... 252-2004

8 Cooling Fan 230V ……………………………………………….. ................... 66-9013

9 Thermal Overload Safety ..................................................................................... 66-1114

10 Power Switch ..................................................................................................... 66-3003

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RM/RA SERIES OWNER’S MANUAL

RM SERIES COMPONENTS:

11 Contactor ……………………………………………………….. .................... 66-2017

12 Temperature Control ......................................................................................... 252-5008

Control Knob .......................................................................................... 252-2003

13 Temperature Control Sensor ............................................................................. 252-3001

14 Temperature Control Indicator Light 230V ………………………… ............. 50-0030

15 Timer, 60-Minute 230V 50hz …………………………………… ................ 252-1020

Timer, 60-Minute 230V 60hz …………………………………… ................ 252-1019

Timer Knob .............................................................................................. 253-2002

16 Buzzer Alarm 240V ……………………………………………….................... 66-1113

17 Motor Speed Switch ........................................................................................... 50-1392

RA SERIES COMPONENTS:

18 Solid state relay………………………………………………….. .................... 66-2003

19 Power supply ........................................................................................................ 50-0947

20 Temperature control sensor .................................................................................. 66-1038

21 PLC .................................................................................................................... 66-1152

22 Touch screen ......................................................................................................... 66-1148

INTERIOR COMPONENTS:

27 Blower Wheel ..................................................................................................... 50-0408

28 Oven Element Cover ........................................................................................... 07-0242

DOOR COMPONENTS:

29 Latch .................................................................................................................... 50-1360

30 Catch .................................................................................................................... 50-0421

31 Door Gasket .................................................................................................. 700-0083-A

GENERAL EXTERIOR COMPONENTS:

32 Side Access Panel ............................................................................................... 07-0222

33 Outside Top:

Solid back ................................................................................................. 07-0224

Pass Through .............................................................................................. 07-0223

34 6” adjustable leg .................................................................................................. 50-0555

35 Water Inlet Fitting ............................................................................................... 31-0058

INTERNAL STEAM OPTION COMPONENTS, RM series:

36 Steam Switch ...................................................................................................... 50-1356

37 Water Supply Solenoid Valve 230V ……………… ………………… .............. 50-0307

38 Water Injection Nozzle ....................................................................................... 31-0033

39 Steam Injection Timer 230V ………………… …………………… .................. 50-0691

NUVU® MENOMINEE, MICHIGAN 49858
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RM/RA SERIES OWNER'S MANUAL

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RM/RA SERIES OWNER’S MANUAL

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