Traulsen UC, ULT27 User Manual

Traulsen & Co., Inc.

Quality Refrigeration

OWNER’S MANUAL

Instructions for the installation, operation

and maintenance of all Traulsen:

UC Series Full-Size Undercounter Refrigerators
UC Series Full-Size Undercounter Freezers
UL Series Shorty Cooktop Refrigerators

This Traulsen unit is built to our highest quality standards. We build our refrigerators, freezers and heated
cabinets this way as a matter of pride. This philosophy has made Traulsen the leader in commercial refrig­eration since 1938. We thank you for your choice and confidence in Traulsen equipment and we know you
will receive many years of utility from this equipment.

All Traulsen units are placed on a permanent record file with the service department. In the event of any
future questions you may have, please refer to the model and serial number found on the name tag affixed
to the unit. Should you need service, however, call us on our toll free number, 800-825-8220 between 7:30
am and 4:30 pm CST, Monday thru Friday. It is our pleasure to help and assist you in every possible way.

INSTALLER

COMPLETE THE FOLLOWING INFORMATION PRIOR TO UNIT INSTALLATION

INITIAL START DATE: SERIAL NO.

MODEL TYPE:

COMPANY/INDIVIDUAL NAME:

INSTALLER:

FORM NUMBER TR35745 REV. 5/03 P/N 375-60183-00

TABLE OF CONTENTS

I. THE SERIAL TAG Page 1
II. RECEIPT INSPECTION Page 2
III. INSTALLATION

a-Location Page 2
b-Packaging Page 2
c-Installing Legs Page 2
d-Installing Casters Page 3
e-Shelf Pins Page 3
f-Cord & Plug Page 3
g-Power Supply Page 3
h-Wiring Diagram Page 3
i-Placing Equipment On Top Of Cabinet Page 3

IV. OPERATION

a-Refrigerators Page 3
b-Freezers Page 3/4
c-Condensate Removal Page 4

V. CARE & MAINTENANCE

a-Cleaning The Condenser Page 4
b-Hinge Replacement Page 4
c-Replacing The Gaskets Page 4
d-Cleaning The Exterior Page 4
e-Cleaning The Interior Page 4

VI. MISC. OPERATIONS

a-Adjusting The Shelves Page 4/5
b-Re-Hinging The Door(s) Page 5
c-Removing The Drawers Page 5
d-Removing The Powerpack Page 5/6

VII. INTELA-TRAUL

a-Control Features Page 7
b-Alarm Explanations Page 8
c-Control Panel Page 9
d-Parts Assembly Page 9
e-Notes To The User Page 10
f-Enter The Customer Access Code Page 10
g-Customer Service Parameters Page 11
h-Adjusting Thermostat Set Point High Page 11
i-Adjusting Thermostat Set Point Low Page 12
j-Changing The Temperature Scale Page 12
k-Setting The 24-Hour Clock Page 13
l-Setting The Date Page 14
m-Setting Daylight Savings Time Page 14
n-Starting A Manual Defrost Page 15
o-Setting Defrost Lockouts Page 16
p-Adjusting The Dewpoint Compensation Factor Page 17
q-Setting The Audible Alarm Style Page 17
r-Viewing Sensor Temperatures Page 18

VIII. TROUBLE SHOOTING GUIDE Page 19
IX. WARRANTY INFORMATION Page 20
X. OTHER

a-Service Information Page 21
b-Spare Parts Page 21
c-Warranty Registration Page 21

XI. PARTS LIST Page 21
XII. INDEX Page 22

FORT WORTH, TX.

SERIAL MODEL
VOLTS Hz PH

TOTAL CURRENT AMPS
MINIMUM CIRCUIT AMPS
MAXIMUM OVERCURRENT PROTECTION AMPS
LIGHTS WATTS
HEATERS AMPS

REFRIGERANT TYPE OZ
DESIGN PRESSURE HIGH LOW

REFRIGERANT TYPE OZ
DESIGN PRESSURE HIGH LOW

370-60294-00 REV (A)

I. THE SERIAL TAG

The serial tag is a permanently affixed sticker on
which is recorded vital electrical and refrigeration data
about your Traulsen product, as well as the model
and serial number. This tag is located in the right
interior compartment on all full size undercounter and
equipment stand models.

READING THE SERIAL TAG

• Serial = The permanent ID# of your Traulsen

• Model = The model # of your Traulsen

• Volts = Voltage

• Hz = Cycle

• PH = Phase

• Total Current = Maximum amp draw

• Minimum Circuit = Minimum circuit ampacity

• Lights = Light wattage

• Heaters = Heater amperage (Hot Food units only)

• Refrigerant = Refrigerant type used

• Design Pressure = High & low side operating

pressures and refrigerant charge

• Agency Labels = Designates agency listings

-1-

II. RECEIPT INSPECTION

III. INSTALLATION (continued)

All Traulsen products are factory tested for perfor­mance and are free from defects when shipped. The
utmost care has been taken in crating this product to
protect against damage in transit. All interior fittings
have been carefully secured and the legs or casters
are boxed and strapped inside to prevent damage.

You should carefully inspect your Traulsen unit for
damage during delivery. If damage is detected, you
should save all the crating materials and make note
on the carrier’s Bill Of Lading describing this. A freight
claim should be filed immediately. If damage is sub­sequently noted during or immediately after installa­tion, contact the respective carrier and file a freight
claim. Under no condition may a damaged unit be re­turned to Traulsen & Co. without first obtaining writ­ten permission (return authorization).

III. INSTALLATION

III. a -

LOCATION:
Select a proper location for your Traulsen unit, away
from extreme heat or cold. Allow enough clearance
between the unit and the side wall in order to make

use of the door stay open feature at 120° (self-closing
feature operates up to 90°). The door(s) must be able
to open a minimum of 90° in order to make use of the

maximum clear door width.

III. c - INSTALLING LEGS OR CASTERS:
6” high stainless steel legs are supplied standard for
all Traulsen undercounter units. Casters in lieu of legs
are available as an optional accessory for the same
models. These are shipped from the factory packed
inside two cardboard boxes which are strapped to one
of the shelves. Remove the nylon straps and open the
boxes, each should contain either four (4) legs or four
(4) casters and sixteen (16) bolts (see figure 1 for
proper locations).

One Section Models

Two Section Models

Three Section Models

III. b - PACKAGING:
All Traulsen units are shipped from the factory bolted
to a sturdy wooden pallet and packaged in a durable
cardboard container. The carton is attached to the
wooden skid with the use of large staples. These
should first be removed to avoid scratching the unit
when lifting off the crate.

Most exterior stainless steel surfaces have a protec­tive vinyl covering to prevent scratching during manu­facturing, shipping and installation. After the unit is
installed in place of service, remove and discard the
covering from all surfaces.

To remove the wooden pallet, first if at all possible, we
suggest that the cabinet remain bolted to the pallet
during all transportation to the point of final installa­tion. The bolts can then be removed with a 3/4” socket
wrench. Avoid laying the unit on its front, side or
back for removal of the pallet.

NOTE: Traulsen does not recommend laying the unit
down on its front, side or back. However, if you must
please be certain to allow the unit to remain in an up­right position afterwards for 24 hours before plugging
it in so that the compressor oils and refrigerant may
settle.

Proper Leg/Caster Locations

Fig. 1

WARNING: THE CABINET MUST BE BLOCKED AND
STABLE BEFORE INSTALLING LEGS OR CASTERS.

To install the legs or casters, first raise and block the
reach-in a minimum of 7” from the floor. For install­ing legs, thread the legs into the threaded holes on
the bottom of the cabinet (see figure 2). Be certain
that all legs are tightly secured (legs and casters
should be tightened to 300 inch/pounds, max). When
the unit is set in its final position, it is important for
proper operation that the unit be level. The legs are
adjustable for this purpose, turn the bottom of the leg
counter-clockwise to raise it, clockwise to lower it.
Level the unit from front to back as well as side to side
in this manner, using a level placed in the bottom of
the cabinet.

Fig. 2

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III. INSTALLATION (continued)

III. d - INSTALLING LEGS OR CASTERS (cont’d):
Please note that Traulsen units are not designed to be
moved while on legs. If the unit requires moving, a
pallet jack or forklift should be used to prevent dam­age. For installing casters, the casters are “plate”
type, and require the use of four (4) bolts each to se­cure them firmly to the cabinet bottom at each corner
(see figure 3). The caster bolts are tightened using a
1/2” socket wrench.

Fig. 3

III. e - SHELF PINS:
The unit ships with shelves and shelf pins installed.
Check all shelf pins to assure they are tightened down
as they may have come loose during shipping. Ro­tate the pins clockwise until they are secured against
the side of the cabinet.

III. i - PLACING EQUIPMENT ON TOP OF UNIT:
Equipment may be placed on top of your Traulsen full­size undercounter or equipment stand. However,
please be aware that a stainless steel worktop is re­quired on cabinets being used to support equipment
weighing in excess of 100 lbs. or producing heat in

excess of 140°F to the top surface. Optional stainless

steel tops are available from Traulsen.

IV. OPERATION

IV. a - REFRIGERATORS:
Both refrigerators and freezers do not require manual
defrosting. During normal operation, a refrigerator
continuously circulates above freezing cabinet air
through the coil. A compressor “OFF” cycle occurs
every hour to melt any frost which may accumulate
on the coil during the compressor “ON” cycle. The
control will read “dEF” when this occurs (see figure

4). With standard holding refrigerators, high relative
humidity is also maintained to prevent dehydration of
stored product.

INTELA-TRAUL

°F °C

SET

III. f - CORD & PLUG:
Most self-contained models are supplied with a cord
& plug attached. It is shipped coiled at the rear of the
cabinet, secured by a nylon strip. For your safety and
protection, all units supplied with a cord and plug in­clude a special three-prong grounding plug on the ser­vice cord. Select only a dedicated electrical outlet with
grounding plug for power source. NOTE: Do not un­der any circumstances, cut or remove the round
grounding prong from the plug, or use an extension
cord.

III. g - POWER SUPPLY:
The supply voltage should be checked prior to con­nection to be certain that proper voltage for the cabi­net wiring is available (refer to the serial tag to deter­mine correct unit voltage). Make connections in ac­cordance with local electrical codes. Use qualified
electricians.

Use of a separate, dedicated circuit is required. Size
wiring to handle indicated load and provide necessary
overcurrent protector in circuit (see amperage require­ments on the unit’s serial tag).

III. h - WIRING DIAGRAM:
Refer to the wiring diagram for any service work per­formed on the unit. Should you require one, please
contact Traulsen Service at [phone], and pro­vide the model and serial number of the unit involved.

FREEZER

Fig. 4

IV. b - FREEZERS:
During normal operation, a freezer continuously cir­culates below freezing cabinet air through the coil. The
coil requires a periodic defrosting for proper opera­tion. This is accomplished by an automatic, time acti­vated, temperature/time terminated, defrost program,
utilizing hot gas from the refrigeration system. The
controller is preset at the factory for six equally spaced
defrost cycles within each 24-hour period.

At the start of a freezer defrost cycle, both the com­pressor and evaporator fans are OFF. The INTELA­TRAUL control will read “dEF” (see figure 4). When a

temperature device affixed to the coil senses 70°F, the

coil is fully defrosted and the compressor operation
is resumed. The coil fans are delayed from starting at
the termination of a defrost cycle. Fan operation is
automatically resumed, they can also be started by a
time or temp delay (whichever comes first). In case of
temp delay, it uses the same coil sensor and starts at

32°F. The total refrigeration system operation is then

resumed.

During freezer defrost operation, heat is confined to
the coil enclosure to prevent any significant rise in
temperature within the food zone. The fan delay con

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IV. OPERATION (continued) V. CARE & MAINTENANCE

IV. b - FREEZERS (cont’d):
trols function upon termination of a defrost cycle is
two-fold. First, to prevent blowing warm air into the
food storage area. Second, to prevent any conden­sation on the defrost coil from being blown into the
food storage area.

The INTELA-TRAUL control is set from the factory to
terminate defrost at 20 minutes in the event of a sen­sor failure. This setting should never be tampered
with, without first consulting the factory.

IV. c - CONDENSATE REMOVAL:
Both refrigerator and freezer units are supplied with
an electric condensate evaporator for condensate re­moval.

V. CARE & MAINTENANCE

V. a - CLEANING THE CONDENSER:
The most important thing you can do to insure a long,
reliable service life for your Traulsen is to regularly
clean the condenser coil.

The condensing unit requires regularly scheduled
cleaning to keep the finned condenser clean of lint
and dust accummulation. The INTELA-TRAUL con­trol will notify you through a “CLN-FIL” message when
cleaning is necessary (see page 7). Keeping the con­denser clean allows the cabinet to operate more effi­ciently and use less energy.

To clean the condenser, first disconnect electrical
power to the cabinet and remove the front louver as­sembly. To remove this, follow the directions in sec­tion VI. d - Step #1. Once the screws are removed, the
panel can be removed allowing full access to the
powerpack. Vacuum or brush any dirt, lint or dust
from the finned condenser coil, the compressor and
other cooling system parts. If significant dirt is clog­ging the condenser fins, use compressed air to blow
this clear.

Replace louver assembly, screws and caps.

V. b - HINGE REPLACEMENT:
Both the door and hinge can be easily removed from
the cabinet. To remove the door, remove the plug at
the bottom of the top hinge. Inside the hinge there is
a small screw which secures the door in place. Re­move this with a flat head screwdriver and the door
can then be lifted off the hinge. To remove the door
half of the hinge from the door, lift off the hinge cover
and then remove the three Phillips head screws which
secure the hinge in place on the door. To remove the
cabinet half of the hinge, remove the three Phillips
head screws which hold it in place. To reassemble
the hinge reverse the previous procedure.

V. c - REPLACING THE GASKETS:
To remove the gasket to be replaced, grasp it firmly by
one corner and pull it out. Before attempting to install
a new gasket, both the unit and the gasket itself must
be at room temperature. Insert the four corners first
by using a rubber mallet (or hammer with a block of
wood). After the corners are properly inserted, work
your way towards the center from both ends by gently
hitting with a mallet until the gasket is completely
seated in place (see figure 5 for proper gasket place­ment).

○○○

Inside Door Panel

Gasket Assembly

Fig. 5

Vertical Gasket

Retainer

○○○

○ ○○○

○○○○

NOTE: The gasket may appear too large, but if it is
installed as indicated above it will slip into place.

V. d -

CLEANING THE EXTERIOR:
Exterior stainless steel should be cleaned with warm
water, mild soap and a soft cloth. Apply with a damp­ened cloth and wipe in the direction of the metal grain.

Avoid the use of strong detergents and gritty, abra­sive cleaners as they may tend to mar and scratch the
surface. Do NOT use cleansers containing chlorine,
this may promote corrosion of the stainless steel.

Care should also be taken to avoid splashing the unit
with water, containing chlorinated cleansers, when
mopping the floor around the unit.

For stubborn odor spills, use baking soda and water
(mixed to a 1 TBSP baking soda to 1 pint water ratio).

V. e - CLEANING THE INTERIOR:
For cleaning both stainless steel and anodized alumi­num interiors, the use of baking soda as described in
section “V. d” is recommended. Use on breaker strips
as well as door gaskets. All interior fittings are re­movable without tools to facilitate cleaning.

WARNING: DISCONNECT ELECTRICAL POWER
SUPPLY BEFORE CLEANING ANY PARTS OF THE
UNIT.

VI. MISC. OPERATIONS

VI. a - ADJUSTING THE SHELVES:
For shelves mounted on pins, first select the desired
location and remove the white plastic covers in the
interior back and sides by rotating them counter-clock­wise. Remove the shelf pins by rotating them counter­clockwise. Install the pins in the desired location by

-4-

VI. MISC. OPERATIONS

VI. a - ADJUSTING THE SHELVES (cont’d):
rotating clockwise. Make sure the pin is securely tight­ened down. Do not over tighten. Slide the shelf into
its new position, and replace the white plastic covers
into the holes vacated by the shelf pins.

VI. b - REHINGING THE DOOR(S):
All UC models are supplied standard with a re-hinging
feature. To begin rehinging the door, first disconnect
power to the unit.

Lift the door off its hinge cams and place aside. Next
remove the plugs covering the holes of the re-hinging
feature located on the side opposite of the present
hinge location.

Remove the existing hinge bodies by removing the
three (3) Phillips head screws which secure each to
the cabinet face. Replace the hinges in their new loca­tion, and replace the screws.

Remove the hinge cover from the door half of the hinge
by sliding it downwards. Next remove the hinge hard­ware from the door by removing the three (3) Phillips
head screws which secure each to the door.

VI. d - REMOVING THE POWERPACK:

1. Remove the louver panel by first removing the four
(4) black plastic plugs that are located in each corner
of the powerpack louver assembly. These conceal four
(4) Phillips head screws which hold the louver in place.
Remove these screws as well, and set both them and
the plastic plugs aside (see figure 6).

○○○○○○

○○

Fig. 6

2. Remove louver assembly (see Figures 7a & 7b).

3. Remove the power cord blank-off cover and retainer.

4. Disconnect power and mullion heater plugs from
chassis.

Turn the door around to its new position, and replace
the hinge hardware to the door in the existing screw
holes, but in the opposite position. Replace the screws
to secure the hinge hardware in place.

Position the door in its new location by lowering the
door hinge hardware into the hinge cams located on
the cabinet face.

VI. c -

REMOVING THE DRAWERS:

Each drawer on UL equipment stand models are de­signed to accommodate two (2) 12” x 20” x 4” deep
pans, front to back. SBS models can acommodate two
(2) 12” x 20” x 4” deep pans, side by side.

Drawers are supplied standard with divider bars which
allow it be configured for use with half, third and quar­ter size pans. These are shipped along with the cabi­net, taped together and secured inside of the bottom
drawer. No bar is required for use with full-size pans.
In all cases, pans are supplied by others.

The drawers can be easily removed by first pulling the
drawer out to its full extension. Next, lift the drawer
vertically to dis-engage the drawer slide wheel from
the slide frame and remove the entire drawer. To re­place the drawer, reverse the process.

5. Remove interior plenum on back wall of cabinet in­terior, air duct transition, supply air duct and return air
grill.

6. Remove the four (4) Phillips head screws securing
the powerpack to the cabinet front (see figure 8).

○○○○○○○

○○○○○○○

Fig. 8

VI. d - REMOVING & RELOCATING THE POWERPACK:
To remove the powerpack for maintenance, servicing
or to relocate it to the other side, first disconnect power
to the unit. If the unit is equipped with an optional
stainless steel top, this will also first have to be re­moved. Then follow these directions: -5-

7. Grasp the condenser fan mounting brace and pull
the powerpack up and out gently. This allows the unit
to come forward enough so as to enable the powerpack
to be pulled out of the top and bottom lip brackets (see
figure 9).

VI. MISC. OPERATIONS (cont’d)

Fig. 7a

Remove Louver

Assembly

○○○○○○○○○○○○○○○○○○○○○

Fig. 7b

○○○○○○○○○○○○○○○○○○○○○

○

○

○

○

○

○

○

○

○○○○○○○○○○○○○○○○○○○○○

○

Fig. 9

Removing Power

Pack

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VII. INTELA-TRAUL

Your new Traulsen Undercounter Refrigerator or Freezer is equipped with a state-of-the-art electronic microproces­sor INTELA-TRAUL® control, which precisely regulates operation and provides alarms when problems occur. It is
supplied from the factory completely ready for use but without the audible alarms activated. See pages 8 thru 17 for
more information.

VII. a - INTELA-TRAUL® CONTROL FEATURES:
Internal Time Clock

• Eliminates defrost time clock.

• Will display only at “Start Up”.

• Must be reset after a power failure.

• See “Setting The 24-Hour Clock” on Page 12 (Also required at “Start Up”).

• Will automatically update for Daylight Savings Time. See “Setting Daylight Savings Time” on page 13.

Water Resistant Housing

The INTELA-TRAUL® control is water resistant not only from the face of the control, but also from the rear of the
housing.

Parameter/Service Levels

• See “Customer / Service Parameters” on Page 9.

®

Defrost Lockouts - See “Setting Defrost Lockouts” on page 15.

• Customers can set up to 4 different defrost lockout periods. The lockout prevents the unit from going into a defrost
cycle during peak kitchen use. Note: The 24-hour clock must be set for this feature to operate correctly.

Data Storage

The control comes equipped with 72 hours worth of data storage capability including:

• Records cabinet air temperatures every 6 minutes, needed to document “Due Diligence” in accordance with
HAACP standards.

• Records alarm events.

• Records diagnostic test of each sensor every 24 hours.

• Records failed security attempts.

• Records door open cycles.

• Records defrost cycles (refrigerator and freezer models only).

Note: The 24-hour clock and the date must be set for the above information to be recorded at the correct time
and date.

Communication Ability

An RS485 port is available as a means of retrieving information from the stored data.

Smart Recovery

In the event that a sensor fails, the INTELA-TRAUL® control will maintain the same compressor operation & defrost
cycles that it recorded over the previous 72 hours in order to maintain the operation of the unit until service arrives.

Alarms (See the following pages for explanations)

• High Cabinet Air Temperature

• Low Cabinet Air Temperature

• Loss Of Power

• CONDENSERCLEAN*

• Sensor Failures

* Not Available On Remote Models

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