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)

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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.

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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

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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.

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