Traulsen RET232EUT, RET132EUT, RET232NUT User Manual

Quality Refrigeration

OWNER’S MANUAL

Instructions for the installation, operation

and maintenance of all Traulsen:

Reach-In Even Thaw Refrigerator Models*

RET132EUT
RET232EUT
RET232NUT

*For roll-in even-thaw models please refer to form number TR35867.

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 condence 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 le 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 afxed

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 TR35849 REV. 08/13 P/N 375-60214-00

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 or Casters Page 2
d-Tray Slides Page 3
e-Cord & Plug Page 3
f-Power Supply Page 3
g-Wiring Diagram Page 3
h-Clearance Page 3
IV. OPERATION
a-Even-Thaw Overview Page 3
b-Expected Performance Page 3
c-Even-Thaw Operation Page 3
d-Batch Loading Page 4
e-Process Loading Page 4
f-Interior Arrangements Page 4
g-Adjusting The Temperature Scale Page 4
h-Operator Controls, Blower Switch Page 4
i-Call Service Light Page 4
V. CARE & MAINTENANCE
a-Cleaning The Condenser Page 4
b-Hinge Replacement Page 4
c-Replacing The Gaskets Page 5
d-Cleaning The Exterior Page 5
e-Cleaning The Interior Page 5

VI. OTHER
a-Service Information Page 5
b-Spare Parts Page 5
c-Warranty Registration Page 5
VII. GEN’L USE, OPERATION & SERVICE Page 6
VIII. EXPECTED THAW PERFORMANCE/

OPERATIONAL TROUBLESHOOTING

a-Introduction Page 6
b-Test Parameters Page 6
c-Test Results Page 6
d-Results as a Function of Product Mix Page 6
e-Incomplete Thawing Page 7
f-Equipment Issues Page 7
g-Causes Of Extended Thaw Times Page 7
IX. TROUBLE SHOOTING GUIDE Page 8
X. SPARE PARTS LIST Page 9
XI. WIRING DIAGRAMS Page 10-12
XII. WARRANTY INFORMATION Page 13

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)

-1-

I. THE SERIAL TAG

The serial tag is a permanently afxed 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 upper right interior compartment on all reach-

in/pass-thru and roll-in/roll-thru refrigerator, freezer

and dual-temp models. For hot food models, this tag
is located on the top of the unit behind the louvers to
protect it from the heat.

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

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 ttings have been carefully secured and
the legs or casters are boxed and strapped inside to prevent
damage. Door keys will be attached to the handle with a

nylon strip. The handle is protected by an easily removable
nylon netting.

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 led immediately. If damage is subse-

quently 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. without rst 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 available.

III. c - INSTALLING LEGS OR CASTERS:

6” high stainless steel legs are supplied standard for
all Traulsen reach-in and pass-thru units. Casters in
lieu of legs are available as an optional accessory for
the same models. These are shipped from the fac-

tory packed inside a cardboard box which is strapped to
one of the shelves. Remove the nylon strap and open
the box, it should contain either four (4) legs or four (4)
casters and sixteen (16) bolts.

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 gure below). 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 nal 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.

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, rst 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: DO NOT LAY THE UNIT ON ITS SIDE DURING
TRANSPORTATION OR INSTALLATION.

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

rmly to the cabinet bottom at each corner (see gure be­low). The caster bolts are tightened using a 1/2” socket

wrench.

-2-

III. INSTALLATION (continued)

IV. OPERATION

III. d - TRAY SLIDES:

Reach-In models are supplied with fourteen (14) pairs of #1
type tray slides on 4” centers. These are shipped installed

from the factory, and are easily removable for cleaning
without tools.

III. e - CORD & PLUG:

Most self-contained models are supplied with a cord & plug
attached. It is shipped coiled at the top of the cabinet,secured

by a nylon strip. For your safety and protection,all units
supplied with a cord and plug include aspecial three-prong
grounding plug on the service cord. Select only a dedicated
electrical outlet with grounding plug for power source.

NOTE: Do not underany circumstances, cut or remove
the round grounding prong from the plug, or use an
extension cord.

III. f - 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 qualied 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. g - 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.

III. h - CLEARANCE:

In order to assure optimum performance, the condensing
unit of your Traulsen unit MUST have an adequate supply

of air for cooling purposes. Therefore, the operating location

must either have a minimum of 12” clearance overhead of
the condensing unit or allow for unrestricted air ow at the
back of the unit. Clearance of at least 12” above is required

in order to perform certain maintenance tasks.

IV. a - EVEN-THAW OVERVIEW:

The “Even-Thaw” refrigerator was specially designed to thaw

frozen food product under safe, temperature controlled condi-

tions. It is not intended as a storage refrigerator.

NOTE: USING THIS REFRIGERATOR FOR STORAGE OF
UNCOVERED PRODUCT IS NOT RECOMMENDED.

IV. b - EXPECTED PERFORMANCE:

The Traulsen Even-Thaw refrigerator is designed to thaw a
full load of frozen food product (see BATCH LOADING for
guidelines) in approximately 18 to 24 hours. However, be

aware that actual thawing times will vary depending upon a
number of variables, such as product type, product packag­ing, density, spacing, etc. Please note that some other load­ing variables, such as product location, are not important to
thawing and do not effect thaw cycle duration.

IV. c - EVEN THAW OPERATION:

The Traulsen Even-Thaw cabinet is a refrigerator, with two

important additional features: 1) the ability to introduce small

amounts of heat into the cabinet, and 2) increased air ow,

indicated by the presence of blowers mounted behind the
mullion.

The Even-Thaw refrigerator operates continually, the intro­duction of frozen product lowers the cabinet temperature
below the heater setpoint temperature (37°F). This prompts

the refrigeration system to turn OFF, and the heaters to turn
ON. Anytime the cabinet air temperature is below the heater

setpoint temperature, additional heat is added. Heater op­eration is controlled proportionally, i.e. the colder the cabinet
temperature, the longer the heaters remain in operation.
When the cabinet air temperature reaches above the heater

setpoint temperature, the heaters turn OFF.

When the cabinet air temperature reaches the upper refrig­erator setpoint temperature (40°F), the refrigeration cycle is
initiated. As long as product does not lower the cabinet tem­perature below the lower refrigeration setpoint temperature
(37°F), the cabinet will continue to cycle between 38°F and

40°F. Upon completion of a thaw cycle, the thawed product
should then be removed from the Even-Thaw cabinet and

placed in a dedicated storage refrigerator.

-3-

IV. OPERATION (continued) V. CARE & MAINTENANCE

IV. d - BATCH LOADING:

The Even-Thaw model can accommmodate any size partial
load, or up to twenty eight (28) 18” x 26” pans of product. Use
of aluminum pans is highly recommended. Product should be
placed on pans in one layer only to allow for proper air ow.

When completely loaded with frozen product (at approxi-

mately -5°F), the interior cabinet air temperature will begin
to drop and approach the product temperature as a result.
When this occurs the heaters begin operation in order to
return the cabinet temperature back up to the heater setpoint
temperature (37°F). This portion of the thaw cycle may take

place for approximately 8 to 12 hours. With a full product load

the interior cabinet temperature should remain at or below

37°F for approximately 8 to 12 hours of the expected 18-24

hour total thaw cycle time.

IV. e - PROCESS LOADING:

If the cabinet is unloaded as needed and replaced with frozen

product, the average cabinet temperatures remain higher.
A fully loaded cabinet with the refrigeration system cycling
from 38°F to 40°F thaws product faster than one maintaining
operation at below 32°F air temperatures for several hours.

IV. f - INTERIOR ARRANGEMENTS:

Each reach-in Even-Thaw model includes 14 pairs of #1
trayslides (16 gauge stainless steel angle type) for bottom
support of either: (1) 18” x 26” pan per pair of tray slides or
(2) 14” x 18” pans per pair of tray slides, per section.

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 nned condenser clean of lint and dust accum­mulation. Keeping the condenser clean allows the cabinet to

operate more efciently and use less energy.

To clean the condenser, rst disconnect electrical power to

the cabinet and lift up the front louver assembly. To lift this,
remove the two screws located on both sides at the bottom

of the louver assembly. Once the screws are removed, the

panel can be pivoted upwards allowing full access to the front

facing condenser. Vacuum or brush any dirt, lint or dust from
the nned condenser coil, the compressor and other cooling
system parts. If signicant dirt is clogging the condenser ns,

use compressed air to blow this clear.

Lower louver assembly and replace the screws to hold

it in place.

IV. g - ADJUSTING THE TEMPERATURE SCALE:

The Traulsen Even-Thaw model is preset at the factory to
operate within strict temperature parameters. Please contact
our Service Department at [phone] for any additional

technical support.

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 at head screw-

driver and the door can then be lifted off the hinge. To remove
the door portion of the hinge from the door, lift off the hinge

cover and then remove the three Phillips head screwswhich

secure the hinge in place on the door. To remove the cabinet

portion of the hinge, remove the three Phillips head screws
which hold it in place. On solid door units, the top hinge(s)

contains a microswitch for controlling the interior lighting.

To reassemble the hinge reverse the previous procedure.

-4-