Traulsen RET132EUT-FHS, RET132EUT-HHS, RET232EUT-FHS, RET232EUT-HHS, RET232NUT-FHS User Manual

Quality Refrigeration

OWNER’S MANUALOWNER’S MANUAL

OWNER’S MANUAL

OWNER’S MANUALOWNER’S MANUAL

Instructions for the installation, operation

and maintenance of all Traulsen:

Reach-In Even Thaw Refrigerator Models*

Reach-In Models*

RET132EUT-FHS, RET132EUT-HHS, RET232EUT-FHS, RET232EUT-HHS,

RET232NUT-FHS & RET232NUT-HHS

*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 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 TR35849 REV. 7/05 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 2
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 3
e-Process Loading Page 3
f-Interior Arrangements Page 3
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 SUMMARY Page 6
VIII. EXPECTED THAW PERFORMANCE/

OPERATIONAL TROUBLESHOOTING

a-Introduction Page 7
b-Test Parameters Page 7
c-Test Results Page 7
d-Results as a Function of Product Mix Page 7
e-Incomplete Thawing Page 7
f-Equipment Issues Page 7
g-Other Causes Of Extended Thaw Times Page 7-8

IX. TROUBLE SHOOTING GUIDE Page 8
X. SPARE PARTS LIST Page 9
XI. WIRING DIAGRAM - ALL ONE SECTION MODELS Page 10
XII. WIRING DIAGRAM - MODELS RET232NUT ONLY Page 11
XIII. WIRING DIAGRAM - MODELS RET232EUT ONLY Page 12
XIV. WARRANTY INFORMATION Page 13
XV. INDEX Page 14

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 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 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 (cont’d)

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.
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 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 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 available.

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.

6” high stainless steel legs are supplied standard for
all Traulsen reach-in Even-Thaw models. Casters in

III. c - INSTALLING LEGS OR CASTERS:
lieu of legs are available as an optional accessory for
the same models. These are shipped from the factory
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 figure 1). 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. 1

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 2). The caster bolts are tightened using a
1/2” socket wrench.

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.

-2-

Fig. 2

III. INSTALLATION (cont’d) IV. OPERATION (cont’d)

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 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. 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 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. 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” clear-
ance overhead of the condensing unit or allow for unre­stricted air flow at the back of the unit. Clearance of at
least 12” above is required in order to perform certain
maintenance tasks.

IV. OPERATION

IV. a - EVEN-THAW OVERVIEW:
The “Even-Thaw” refrigerator was specially designed
to thaw frozen food product under safe, temperature
controlled conditions. 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.

EVEN THAW OPERATION:

IV. c ­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 flow, 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
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.

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 flow.

When completely loaded with frozen product (at approxi­mately -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
tem 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 tray
slides (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.

with the refrigeration sys-

°

F). This prompts

-3-

IV. OPERATION (cont’d) V. CARE & MAINTENANCE

ADJUSTING THE TEMPERATURE SCALE:

IV. g ­The Traulsen Even-Thaw model is preset at the factory
to operate within strict temperature parameters. Should
these settings require adjustment, please contact our
Service Department at [phone].

IV. h -

OPERATOR CONTROLS, BLOWER SWITCH:
As delivered from the factory, all RET models are preset
to operate as described in section IV B. However, if
needed the unit can also be set to operate as a high ca­pacity refrigerator.

To accomplish this a Blower Switch is located behind the
cabinet louvers towards the center. It is labeled ON/OFF.
As delivered, this is in the ON position, allowingthe unit
to operate in the even-thaw mode. When in the OFF posi­tion, this disables two internal mullion blowers, allowing
the unit to operate as a high capacity refrigerator.

Return the Blower Switch to the ON position prior to at­tempting another even-thaw batch. Failure to do so will
result in increased thaw times.

IV. i - CALL SERVICE LIGHT:
This red light is located above the front panel thermom­eter. If illuminated, it may indicate a failure or problem with
one of the temperature sensing probes inside the Even­Thaw unit. If one of the temperature sensing probes fail,
the unit will default to a preset refrigeration cycle in an at­tempt to maintain safe product temperatures. The refrig­eration system and fans will continue to function.

If the light is illuminated, the unit WILL NOT function in the
thaw mode until the faulty component is repaired. If illumi­nated, contact your authorized service agent.

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. 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 lift up the front louver assembly. To
lift this, remove the two screws located on both sides at
the bottom of the louver assembly (see figure 3). Once
the screws are removed, the panel can be pivoted up­wards allowing full access to the front facing condenser
(see figure 4). 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.

Lower louver assembly and replace the screws to hold
it in place.

Fig. 3

Fig. 4

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 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-

V. CARE & MAINTENANCE (cont’d)

VI. OTHER

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).

Fig. 6

VI. a - SERVICE INFORMATION:
Before calling for service, please check the following:

Is the electrical cord plugged in?

Is the fuse OK or circuit breaker on?

Is the power switch “ON”?

If after checking the above items and the unit is still
not operating properly, please contact an authorized
Traulsen service agent. A complete list of authorized
service agents was provided along with your Traulsen
unit. If you cannot locate this, you may also obtain
the name of a service agent from the Tech Service page
of our website: www.traulsen.com.

If service is not satisfactory, please contact our in­house service department at:

Traulsen
4401 Blue Mound Road
Fort Worth, TX 76106
[phone]

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.

Traulsen reserves the right to change specifications
or discontinue models without notice.

VI. b - SPARE PARTS:
Spare or replacement parts may be obtained through
a parts supplier or one of our authorized service
agents. A complete list of authorized service agents
accompanies this manual and is also posted on our
company’s official website @ www.traulsen.com.

VI. c - WARRANTY REGISTRATION:
For your convenience, the warranties on your new
Traulsen unit may be registered with us by one of two
methods. Completing the enclosed warranty card
(shipped with the unit), or by filling out the on-line
warranty registration form located on the Technical
Service page of our website (www.traulsen.com).

-5-

VII. GENERAL USE, OPERATION & SERVICE SUMMARY

VI. a - INTRODUCTION/OVERVIEW:
The Traulsen Even Thaw is designed to be used as a
thawing cabinet. While it may be utilized in a
refrigeration mode, that is not its intended use. Its
function is to hold the cabinet temperature in the
range from 38 to 40 degrees to thaw product within
the food-safe temperature zone. It has not been
configured to hold colder product temperatures in the
35 to 38 deg F range as desired by some customers.

Frozen product placed into the unit will pull the
cabinet temperature below the heater set point (37
deg.) and the unit will begin to function in the thaw
mode. This prompts the refrigeration system to turn
OFF, and the heaters to turn ON. The fans remain ON,
circulating this cold air around the product, allowing
for rapid thawing. When cabinet air temperature
reaches the upper set point (38 deg. although the
product is actually much colder), the heaters turn OFF.

As the cabinet temperature reaches the heater set
point, the heat will be cycled off while the internally
generated heat from the circulation fans continues to
add heat to the cabinet. If sufficient cold capacity or
possibly other frozen product is added to the unit and
subsequently lowers the cabinet temperature more
than 1 degree below the heater set point, the heat will
again turn on to thaw the product.

If the cold capacity of the product no longer sufficiently
pulls down the cabinet temperature below the heater
set point, the cabinet temperature will slowly rise to
attain the evaporator coil cut-in set point (41 deg.) and
energize the refrigeration system. The unit will remain
in the refrigeration mode until the cabinet
temperature pulls down to the compressor cut-out set
point (38 deg.). The unit will continue to operate and
cycle in the refrigeration mode.

VI. b - LOADING GUIDELINES:
The Even-Thaw model can accommodate any size
partial load, or up to (28) 18” x 26” pans of product (for
example approximately 672 lbs. of chicken). Use of alu­minum pans is highly recommended. Product should be
placed on pans in one layer only to allow for proper air­flow. With a full load thaw time will be between 22 & 24
hours. Overloading and/or double wrapping product will
extend thaw times.

VI. c - LED LIGHTS:
The controller has two LED lights that can be useful. One
is marked H, which will be lit when in the Refrigeration
mode. The other is marked G and will be lit during the
Thaw mode. When the H LED is lit the controller will
supply line voltage to the compressor relay coil closing
the N/O contacts in turn supplying line voltage to the
condensing unit. When the G LED is lit the controller
will supply between 3 to 30 VDC to the solid-state relay
coil closing the N/O contacts in turn supplying line
voltage to the mullion heater.

VI. d - CALL SERVICE LIGHT:
If lit, this indicates that one of the two temperature
sensors is either OPEN or SHORTED. To check the
resistance value per given temperature is correct place
the sensor in an ice bath (32 deg.). The resistance value
should be 100 ohms + 2%. There is a cabinet sensor
inside the heater/blower chamber and another sensor in
the evaporator coil.

The units incorporate a mode switch located behind
the louvered panel. Switching to the Refrigeration
mode (switch OFF) will turn off two internal blower fans
and will reduce the Thaw mode (switch ON)
performance. Subsequently, switching to the Thaw
mode will have reduced refrigeration performance.

The controller has been preset at the factory and
should not require any adjustments. Traulsen
engineering EXPECTS no changes be made to any set
points or parameter settings without discussing the
situation and obtaining approval to do so. Modifying
the default set points could disrupt the operation/
functional programming algorithm and result in erratic
unit operation.

-6-

VIII. EXPECTED THAW PERFORMANCE/OPERATIONAL TROUBLESHOOTING

VIII. a - INTRODUCTION:
Even thaw performance is a function of many factors,
especially those involving product types and loading.
As a result, actual thaw times will vary as even similar
sized loads of the same product will exhibit some
differences in their thawing characteristics.

VIII. b ­To provide a general performance baseline, Traulsen
performed some controlled testing in our lab which
may provide the operator with an approximate idea on
what to expect from their Even-Thaw unit. Full load
batches of frozen product were used as follows:

ONE SECTION MODELS
336 lbs. of chicken, distributed between 14 tray levels.
Each level consisted of 24 lbs. of product loaded into
two pans (four 6 lb. pkgs. of frozen product total per
level/two 6 lb. pkgs. per tray).

TWO SECTION MODELS
672 lbs. of chicken, distributed between 28 tray levels.
Each level consisted of 24 lbs. of product loaded into
two pans (four 6 lb. pkgs. of frozen product total per
level/two 6 lb. pkgs. per tray).

VIII. c - TEST RESULTS
Under these actual load parameters, the one-section
model generally required approximately 19-22 hours
in order to completely thaw the entire load. The two­section model required approximately 24-26 hours to
completely thaw the entire load.

TEST PARAMETERS:

VIII. f - EQUIPMENT ISSUES:
If improper loading has been eliminated as a possible
cause for extended thaw cycle times, there are
several system checks which can be done to diagnose
the Traulsen Even-Thaw unit.

First, the amp draw should be checked early in the
thaw cycle. Shortly after loading the unit with frozen
product, the electronic control LED, “G”, should be
illuminated as the cabinet temp will probably be in the
30 to 34 degree F range as per the control read-out.
At this time, full heat should be on. This is a 1300 watt
heater, 115 vac, is about 11.3 amps. Add 4 blowers at

1.1 amps and a few amps for the controls and the total
amp draw should be approximately 16 to 16.5 amps.

When the cabinet temperature reaches 36°F, the LED

“G” will pulse indicating the heat is now being

applied at a 50% level. At 37°F, the LED “G” will be

turned off indicating thaw heat is off. This cycle will
repeat until the cabinet temperature stabilizes between

37-41°F. When the cabinet temperature exceeds 41°F,

the LED “H” illuminates indicating that the cabinet has
switched to refrigeration cycle. The cabinet will now

cycle between 37-41°F in order to maintain cabinet

temperature.

Also, be certain that the thaw switch has not been
turned OFF. This is located behind the louvers and
has a protective guard around it. This switch can turn
OFF 2 of the 3 mullion blowers and reduce airflow
which reduces thaw capability. In addition, the blower
wattage actually adds heat to the unit and helps
augment the units thawing capability.

VIII. d - RESULTS AS A FUNCTION OF PRODUCT MIX:
The above thaw times were based upon a mixed load
of different chicken products typically found in many
establishments. It is important to note that initially, all
tests performed were based on a mixed load of
product. This consisted of approximately 1/4 nuggets,
1/4 strips, 1/4 to 1/3 breasts. This MIXED batch thawed
in the times listed above. In actual operation, thaw
batches consisting of a single type of product, or other
ratios of different products may require more time for
thawing. Both this and larger size loads can both
contribute to longer thaw times.

VIII. e - INCOMPLETE THAWING:
In operation, incomplete thawing (i.e. bags of product
in which not every piece was completely thawed) has
been found to usually be the result of those pkgs.
respective pan level having had restricted airflow due
to overloading (from stacked pkgs. or irregular shaped
packages that blocks air from getting to the pkgs.
closest to the cabinet interior side wall or rear).
Allowing for proper air-flow around each pkgs. of
frozen product should eliminate this situation from
occurring.

VIII. g - OTHER CAUSES OF EXTENDED THAW TIMES:
Some frozen products are often stored in large,
irregularly shaped packages. If used, these should
always be located along the outside wall with the
largest packages being placed closest to, but not
directly against, the wall. It is IMPERATIVE that such
large packages not be placed up against the center
mullion air ducts. This could result in blocked airflow.
REDUCED AIR MOVEMENT EQUATES TO LONGER
THAWING TIMES.

Care should also be taken to avoid pushing other pkgs.
of frozen product up against the mullion sheet metal
ducts. Airflow could be blocked resulting in a similar
extended thaw time situation.

Another scenario to avoid is for packages to be placed
inadvertently up against the outside walls. They will
also block air flow down the sides of the unit. This is
especially an issue with the right side wall
because when the unit returns to normal refrigerated
operation mode, the cold air flows from the upper right
ceiling evaporator outlet, down the wall, and then
mixes into the cabinet, distributed by all the mullion
blowers. If the right wall is blocked, and especially if
blocked near the top right of the cabinet, the cold

-7-

VIII. OPERATIONAL TROUBLESHOOTING (cont’d)

VIII. g - OTHER CAUSES OF EXTENDED THAW TIMES (cont’d):
evaporator exit air can be short circuited on to the top two or three upper right hand levels and be routed right back
to the return evaporator inlet duct. Therefore, those upper shelves could get very cold and perhaps a substantial
amount of product on the right side could become very cold and possibly even refreeze (as the
evaporator outlet air temperature is 20 degrees F).

IX. TROUBLE SHOOTING GUIDE

FIND YOUR PROBLEM HERE REMEDY

1. Condensing unit fails to start a. Check if cord & plug has been disconnected.

2. Condensing unit operates for a. Are doors closing properly?
prolonged periods or continuously. b. Dirty condenser or filter. Clean properly.

c. Evaporator coil iced. Needs to defrost.
d. Shortage of refrigerant, call service.

3. Food compartment is too warm. a. Check doors and gaskets for proper seal

4. Condensation on the exterior surface. a. Check door alignment and gaskets for proper seal.

5. Compressor hums but does not start. a. Call for service.

6. “Call Service” light is lit. a. Call for service. A temperature sensing probe may have

failed.

7. Excessively long product thaw times. a. Review sections “VIII. e” thru “VIII. g”.

b. Call for service.

-8-

X. SPARE PARTS LIST

PART NUMBER APPLIES TO MODEL(S) PART NAME AND/OR DESCRIPTION

341-60105-00 RET132EUT-FHS Full Height Door Gasket

SFO-17357-00 RET232EUT-FHS Full Height Door Gasket

341-60060-00 RET232NUT-HHS Half Height Door Gasket

341-09501-00 RET232NUT-FHS Full Height Door Gasket

325-60003-00 RET132EUT & RET232EUT Filter Drier

325-60003-03 RET232NUT Filter Drier

325-60080-08 RET132EUT TXV Valve 134a

325-60080-07 RET232NUT & RET232EUT TXV Valve 134a

337-60006-00 RET132EUT & RET232NUT Run Capacitor

337-60006-02 RET232EUT Run Capacitor

378-29776-00 RET132EUT & RET232NUT Light Bulb

378-40414-00 RET232EUT Light Bulb

324-60027-00 All Models Even-Thaw Controller

337-60324-00 RET132EUT & RET232NUT Relay 2-Pole, 30 Amp

337-60324-01 RET232EUT Relay 2-Pole, 30 Amp

337-60308-00 All Models Sensor Probe

337-60309-00 RET132EUT & RET232NUT Transformer

337-60309-01 RET232EUT Transformer

337-60311-00 RET132EUT & RET232NUT Solid State Relay

337-60311-01 RET232EUT Solid State Relay

337-29447-00 All Models Defogger Switch

344-60126-00 All Models Thermometer

378-60013-00 All Models Call Service Light

346-28924-42 All Models Lock Keys T-42

346-13186-42 All Models Lock Cylinder

346-13189-00 All Models Lock Bolt

346-60017-00 All Models Lock Keeper

346-60019-00 All Models Lock Keeper Bracket

344-13140-01 All Models 6” High Plate Caster

351-25542-00 All Models Caster Bolt (4 required per caster)

344-37690-00 All Models Door Handle, Stainless Steel

344-28488-00 All Models Hinge Cam

344-28486-00 All Models Hinge Cover

SER-28583-00 All Models Hinge Assembly

344-13168-01 All Models 6” High Stainless Steel Adjustable Leg

701-60933-00 RET232EUT #1 Type Tray Slide for 18” x 26” Pans

701-60032-00 RET132EUT & RET232NUT #1 Type Tray Slide for 18” x 26” Pans

-9-

XI. WIRING DIAGRAM

ALL ONE SECTION MODELS ONLY

-10-

XII. WIRING DIAGRAM

MODELS RET232NUT-FHS & RET232NUT-HHS ONLY

-11-

XIII. WIRING DIAGRAM

MODELS RET232EUT-FHS & RET232EUT-HHS ONLY

-12-

XIV. WARRANTY INFORMATION

STANDARD DOMESTIC WARRANTY

TRAULSEN & CO., INC. warrants new equipment to the original purchaser, when installed within the United States against
defective material and workmanship for one (1) year from the date of original installation. Under this warranty, TRAULSEN
& CO., INC. will repair or replace, at its option, including service and labor, all parts found to be defective and subject to
this warranty. The compressor part is warranted for an additional four (4) years. During this period TRAULSEN & CO.,
INC. will supply replacement compressor(s) if deemed defective, however, all installation, recharging and repair costs
will remain the responsibility of the owner.

This warranty does not apply to damage resulting from fire, water, burglary, accident, abuse, misuse, transit, acts of
God, attempted repairs, improper installation by unauthorized persons, and will not apply to food loss.

THERE ARE NO ORAL, STATUTORY OR IMPLIED WARRANTIES APPLICABLE TO TRAULSEN, INCLUDING BUT NOT LIM­ITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE WHICH EX­TEND BEYOND THE DESCRIPTION ON THE FACE HEREOF. TRAULSEN SHALL HAVE NO OBLIGATION OR LIABILITY FOR
CONSEQUENTIAL OR SPECIAL DAMAGES, GROWING OUT OF OR WITH RESPECT TO THE EQUIPMENT OR ITS SALE,
OPERATION OR USE, AND TRAULSEN NEITHER ASSUMES NOR AUTHORIZES ANYONE ELSE TO ASSUME FOR IT ANY
OBLIGATION OR LIABILITY IN CONNECTION WITH THE EQUIPMENT OR ITS SALE, OPERATION OR USE OTHER THAN
AS STATED HEREIN.

INTERNATIONAL COMMERCIAL WARRANTY

(for Canadian warranties see domestic US warranty)

TRAULSEN & CO., INC. warrants to the original purchaser the Refrigeration Equipment manufactured and sold by it to be free

from defects in material and workmanship under normal use and service for a period of one (1) year from date of shipment. Under
this warranty, TRAULSEN & CO., INC. will reimburse the purchaser for the replacement of any part of said equipment (excluding
dryers & refrigerant gas) which then proves to be defective. This warranty is void if said equipment or any part thereof has been
subject to misuse, damage in transit, accident, negligence or alteration.

TRAULSEN’S standard warranty does not apply to Export Sales. Rather, for a period of one (1) year from date of original
installation not to exceed Fifteen (15) months from date of shipment from factory, TRAULSEN:

will replace, F.O.B. factory, any defective parts normally subject to warranty.

will not cover the cost of packing, freight or labor such costs being the sole responsibility of the dealer.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EITHER EXPRESSED OR IMPLIED AND CONSTITUTES

TRAULSEN’S FULL OBLIGATION AND LIABILITY. WARRANTIES NOT AVAILABLE ON REMOTE MODELS.

-13-

XV. INDEX

A

B

Batch Loading 4
Blower Switch 4

C

Call Service Light 6
Cleaning 5 - 6
Casters 2
Cord & Plug 3
Clearance 3
Condenser, Cleaning The 4

D

E

Even-Thaw Operation 3
Evaporator Outlet 6
Extended Thaw Times, Causes Of 6

F

Fan Switch 6

G

Gasket Assembly 4
Gaskets, Replacing The 4

H

Heaters 3
Hinge, Replacement 4

I

Inside Door Pan 4
Interior Arrangements 3

J

K

L

LED Lights 6
Legs 2
Loading Guidelines 6
Louver Assembly 4

M

Mullion Air Ducts 6

N

O

Operational Troubleshooting 7

P

Power Supply 3
Process Loading 4
Product Mix - Issues 6

R

Refrigerations System 3
Return Authorization 2

S

Serial Tag 1
Spare Parts List 9

T

Temperature Scale Adjustment 4
Troubleshooting 6-7
Tray Slides 3, 7

U

V

Vinyl, Protective Covering 2

W

Warranty Statement
12
Warranty, Registration 5
Wiring DiagramS 10-11

X

Y

Vertical Gasket Retainer 4

Z

-14-

HOURS OF OPERATION:

Monday thru Friday 7:30 am - 4:30 pm CST

Quality Refrigeration

Traulsen

4401 Blue Mound Road Fort Worth, TX 76106
Phone: [phone] Fax-Svce: [phone]
Website: www.traulsen.com

© 2005 Traulsen - All Rights Reserved