Hours of Operation: Monday - Friday 7:30 a.m. - 4:30 p.m.
(CST)
4401 Blue Mound Road Fort Worth, Texas 76106 (USA)
Phone: 800.825.8220 | Service Fax: 817.740.6757 | E-mail: service@traulsen.com | Website: centerlinefoodequipment.com
OWNER’S MANUAL
Instructions for Installation, Operation, &
Maintenance of all Centerline™ by Traulsen:
Reach-In Refrigerators & Freezers*
*Please Note: This manual is intended for use with the above referenced equipment manufactured after December 1, 2024.
-1-
I. THE SERIAL TAG Page 1
a) Serial Tag & Location Page 1
b) Reading The Serial Tag Page 1
II. RECEIPT INSPECTION Page 2
III. INSTALLATION Page 2
a) Location Page 2
b) Packaging Page 2
c) Installing Legs or Casters Page 2
d) Installing Drain Pan Page 3
e) Shelves Page 3
f) Removing Doors and Hardware Page 3
g) Door Removal for Half Door Units Page 4
h) Cord & Plug Page 4
i) Power Supply Page 4
j) Wiring Diagram Page 4
k)Installing Optional Interior Kits Page 4
IV. OPERATION Page 5
a)Operation Display Indicators Page 5
b) Refrigerators Page 5
c) Freezers Page 5
d) Light Switches Page 5
V. CARE AND MAINTENANCE Page 5
a) Cleaning the Condenser Page 5
b) Hinge Replacement Page 6
c) Replacing the Gaskets Page 6
d) Cleaning the Exterior Page 6
e) Cleaning the Interior Page 6
f) Adjusting the Shelves Page 6
VI. CONTROL BASICS Page 7
a) Information Menu Page 7
b) Adjusting Cabinet Setpoint Page 7
c) Initiating a Defrost Page 7
d) Configuration Parameters Page 8
e) Technical Data Page 8
f) Components and Wiring Diagram Page 12
VII. TROUBLESHOOTING GUIDE Page 13
VIII. SERVICE/WARRANTY INFORMATION Page 14
a) Service Information Page 14
b) Spare Parts Information Page 14
c) Warranty Registration Page 14
I. THE SERIAL TAG
I. a - SERIAL TAG & LOCATION
The serial tag is a permanently axed label on which is recorded
vital electrical and refrigeration data about your Centerline
product, as well as the model and serial number. This tag is
located in upper right interior compartment on all reach-in
refrigerator and freezer models.
I. b - READING THE SERIAL TAG
• Model = The model # of your Traulsen unit
• (S/N) Serial Number = The permanent ID# of your Traulsen unit
• Refrigerant SYS1 = System 1 Refrigerant type used and
refrigerant charge
• Design Pressure = System 1 High and Low Pressure
• Refrigerant SYS2 = System 2 Refrigerant type used and
refrigerant charge
• Design Pressure = System 2 High and Low Pressure
• Volts = Voltage
• Hz = Cycle
• PH = Phase
• Total Current = Maximum amp draw
• Min Circuit Amps = Minimum circuit ampacity
• Lights = Light wattage
• Agency Labels = Designates agency listings
• Components = Component Ratings
TABLE OF CONTENTS
ITW Food Equipment Group, LLC
North American Refrigeration
4401 Blue Mound Rd.
Ft. Worth, TX 76106
800-825-8220
MODEL:
MODELO:
MODELE:
CLBM-49F-FS
SERIAL NUMBER:
24B03010
SCAN FOR SERVICE INFO
REFRIGERANT / REFRIGERANTE / RÉFRIGÉRANT
SYS1 (REFM):
R-290
4.60 OZ
130.39 g
130,39 g
Hi Press. (PRESH):
400.00 psi
2,757.90 kPa
2.757,90 kPa
Lo Press. (PRESL):
200.00 psi
1,378.95 kPa
1.378,95 kPa
SYS2 (REFA):
NA
Hi Press. (PRESH):
Lo Press. (PRESL):
Input Power (ELIN) - FOR INDOOR USE ONLY
Voltage
Hertz
Phase
Total Amps
115 ~
60
1
10.00
Device/Part Number:
CLBM-49F-FS-LR-P2
Device/Part Notes:
COMPONENTS / COMPOSANTS / COMPONENTES
1
2
MAX OVER CURRENT PROTECTION (A):
COMP AMPS:
MIN CIRCUIT IN AMPS:
COND FAN AMPS:
DOME LIGHT WATTS:
4
EVAP FAN AMPS:
DISPLAY LIGHT WATTS:
CONTROL AMPS:
DOOR HEATER WATTS:
DEF HEATER WATTS:
B/TMCE HTR WATTS:
370-60297-00 REV. D 01/15/2024
-2-
II. RECEIPT INSPECTION III. INSTALLATION (continued)
II. a - RECEIPT INSPECTION
All Centerline 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 casters/legs are boxed and strapped inside
to prevent damage. Door keys will be attached to electric
cord with nylon strip.
You should carefully inspect your Centerline unit for
damage upon 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). You
may contact Traulsen customer care at (800) 333-7447 and
select option 2 to request a return.
SYSTEMS USING REFRIGERANT R-290 (PROPANE)
Traulsen has selected propane as the refrigerant for many
of their products. In addition to its low global warming
potential and impact on the environment, propane is an
ideal refrigerant. It is a flammable refrigerant, however,
which is why you will see a “flammable refrigerant” sticker
on applicable products. Traulsen products using propane
as the refrigerant are UL approved and are safe to use
in accordance with this Owner’s Manual and general
industry practices for commercial cooking environments.
Please check with local codes or regulations for any
restrictions to products using hydrocarbon refrigerants.
III. INSTALLATION
III. a - LOCATION
Select a proper location for your Centerline unit, away from
extreme heat and allow proper clearance for air circulation.
Allow enough clearance between the unit and the side wall
in order to make use of the door stay open feature at 110°
(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 Centerline units are shipped from the factory bolted to a
sturdy wooden pallet and packaged in a durable hexacomb
cardboard panels.
Most exterior stainless steel and aluminum 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.
If possible, we suggest that the cabinet remain bolted to
the pallet during all transportation to the point of final
installation. To remove the wooden pallet, 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.
III. c - INSTALLING LEGS OR CASTERS
A set of four (4) 4” high casters are supplied standard for
all Centerline Reach-In units. These are shipped from the
factory packed inside a cardboard box which is strapped
inside the cabinet to the lower shelf.
THE CABINET MUST BE BLOCKED AND
STABLE BEFORE INSTALLING LEGS OR CASTERS.
The “Stem” casters are installed by threading them firmly
into the cabinet bottom at each corner (see figure 1). For
leveling, turn the casters counterclockwise to raise it,
clockwise to lower it. Level the unit from front to back as
well as side to side in this manner. The caster bolts are
tightened using a 1/2” socket wrench.
Legs & 6” casters are available in lieu of 4” casters as an
optional accessory kit for the same models. These are
shipped inside a separate cardboard box containing four
(4) casters/legs.
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. 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 counterclockwise to raise it, clockwise to lower it.
Level the unit from front to back as well as side to side in
this manner.
Fig. 1
Tighten
Clockwise
-3-
III. c - INSTALLING LEGS OR CASTERS (cont’d)
Please note that Centerline units are not designed to be
moved while on legs. If the unit requires moving, a pallet
jack or fork- lift should be used to prevent damage.
III. d - INSTALLING DRAIN PAN
Centerline uprights are shipped with the condensate pan
(full-size sheet pan) wrapped up and stored inside the
unit.Remove the condensate pan (full-size sheet pan) and
slide it on the rails underneath the cabinet. Cabinet is
shipped with the drain tube attached to the top as shown
below. Ensure that the open end is routed to the drain pan.
NOTE: DRAIN PAN IS DESIGNED TO HOLD AND EVAPORATE
DEFROST CONDENSATE FROM THE CABINET. HOWEVER, DUE
TO OTHER OPERATIONS LIKE FLOOR CLEANING WITH WATER
JETS/SPRAYS, IT MAY GET FULL AND OVERFLOW. IN THOSE
CASES, DRAIN PAN CAN BE SLIDED OUT AND EMPTIED TO
PREVENT SLIP HAZARD.
III. e - SHELVES
The unit is supplied with shelves to be installed on shelf
pins. Check all shelf pins to assure they are firmly in place
as they may have come loose during shipping. See section
V.f for adjusting the shelves.
III. f - REMOVING DOORS & HARDWARE
In order to fit through narrow (less than 33.5”) doorways,
it may be necessary to remove the door(s), access panels
and/or hinges. A Philip screwdriver may be required. First,
unlock and open door to its open feature position about
110° and remove the screw holding each access panel (see
figures 4 & 5).
After removing the screws, the top panel can be removed
to access hinge hardware. Set the top panel on top of
the unit as it will have wiring still attached to the control
display. The bottom panel can be taken o to access hinge
hardware. The bottom panel of full door configuration
can be set aside. The bottom panel has wiring attached to
the door switch. If needed, the wiring connectors can be
disconnected so louver can be set aside.
After removing the panels, the hinge hardware can be
accessed.
NOTE: ALWAYS SUPPORT THE DOOR WEIGHT OPPOSITE
THE HINGE SIDE WHEN REMOVING TO PREVENT INJURY OR
DAMAGE TO THE DOOR.
III. INSTALLATION (continued)
Remove panel to access hinge
hardware.
NOTE: Top/bottom louvers
contain door switch for
controlling interior lighting.
Special care should be taken
to prevent damaging the
wiring during removal.
Fig. 5
Remove
Screws
Fig. 4
Fig. 3
Condensate pan sits
on rails under the
unit
Drain Tubing
Routed Drain Tubing
Fig. 2
Tighten
Clockwise
-4-
III. f - REMOVING DOORS & HARDWARE (cont’d)
To remove door, two bolts on bottom hinge brackets
need to be removed. Then remove two bolts on top hinge
bracket. The door can then be lifted from the unit. Note:
Hinge brackets are under spring tension. Carefully move
the door just far enough to allow the bracket to unwind.
First, ensure the door weight
opposite the hinge side is
supported. The top hinge
bracket bolts can be removed.
Fig. 7
To re-install the door, top and/or bottom louvers, and
hinges, please reverse the appropriate sections of the
preceding procedure.
III. g - DOOR REMOVAL FOR HALF DOOR UNITS
To begin, remove top/bottom panels, then open the door to
its open feature position about 110°. For top door, remove
two bolts on the top hinge bracket. The door can then
be lifted up from the center hinge hardware. The plastic
bushing will remain in the top door.
For bottom door: support the bottom door weight opposite
the hinge side so minimum movement occurs when the
bolts from the lower hinge plate are removed. Remove two
bolts on the bottom hinge bracket. The door can then be
moved down from the center hinge hardware. The plastic
bushing will remain in the bottom door. Once top/bottom
doors removed, two screws can then be removed on the
center hinge.
II. h - CORD & PLUG
All Centerline reach-in models are supplied with a cord &
plug attached. It is shipped coiled and secured by a nylon
strip to the back cover. 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. i - 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 over
current protector in circuit (see amperage requirements
on the unit’s serial tag).
III. j - WIRING DIAGRAM
Refer to the wiring diagram located on the exterior back
of the cabinet for any service work performed on the unit.
Should you require one, please contact Traulsen Service at
(800) 825-8220, and provide the model and serial number
of the unit involved.
III. k - INSTALLING OPTIONAL INTERIOR KITS
In addition to their standard interiors, Centerline models
also oer the option for additional shelves or tray slides.
If ordered, these are shipped as kits along with the unit,
packaged in a separate cardboard box which contains all
the necessary parts and hardware for on-site installation.
To install additional shelves, install the included pins on
the pre-cut holes where required. Secure the shelves to
the pins using nylon tie-wraps.
Installation of optional tray slides varies with each cabinet,
and with each type of tray slide ordered. To install optional
tray slides, follow the directions packaged inside the kit
carton.
Half door: Lift top and
bottom doors about center
hinge
Fig. 8
Plastic
Pushings
III. INSTALLATION (continued)
Remove the top & bottom hinge brackets from the unit.
Remember to support the door weight opposite the hinge side.
The bottom hinge plate
bolts can be removed.
Fig. 6
Note that hinge brackets are under spring tension. Carefully move the
door just far enough to allow the bracket to unwind.
-5-
Both refrigerators and freezers do not require manual
defrosting. However, manual defrost option is available on
the control, if required.
IV. a - OPERATION DISPLAY INDICATORS
During normal operation, the display shows either the
temperature measured or one of the following indications:
IV. b - REFRIGERATORS
An o-cycle defrost happens every 6 hours for a maximum
length of 30 minutes to melt any frost which may
accumulate on the coil during the operation. During the
O-Cycle defrost, the compressor is o but the evaporator
fans are turned on. The digital control will read “dEF” (see
figure 10) during the defrost. When the temperature sensor
axed to the coil senses 44°F, the coil is fully defrosted
and the compressor operation is resumed.
IV. c - FREEZERS
The coil requires a periodic defrosting for proper operation.
This is accomplished by an automatic, time activated,
temperature/time terminated, defrost program. The
controller is preset at the factory for defrost cycles,
approximately every 5 hours period.
The evaporator fan(s) cycle o with each door opening. The
evaporator fan(s) will cycle on and off (during the
compressor o cycle. During the compressor on cycle the
evaporator fan(s) will run continuously. At the start of a
freezer defrost cycle, both the compressor and evaporator
fans are o. The digital control will read “dEF” (see figure
9).
IV. c - FREEZERS (cont’d)
The electric heater (attached to the coil) is energized. When
the temperature sensor axed to the coil senses 44°F,
the coil is fully defrosted and the compressor operation
is resumed, defrost heaters are automatically turned
o. The evaporator coil fans are delayed from starting
at the termination of a defrost cycle. Fan operation is
automatically resumed, after a short time or temp delay
(whichever comes first). After completion, the total
refrigeration system operation is then resumed. During
defrost operation, heat is confined to the coil enclosure to
prevent any significant rise in temperature within the food
zone. The fan delay control 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.
IV. d - LIGHT SWITCHES
Some Centerline models include a door switch mounted
in the top, bottom, or both louvers depending on door
configuration, which automatically activates the interior
light when the door is opened. When the door is closed,
the lights are automatically turned o. Some Centerline
models’ lights are always illuminated whether the doors
are open or not.
V. CARE & MAINTENANCE
DISCONNECT ELECTRICAL POWER SUPPLY BEFORE
CLEANING ANY PARTS OF THE UNIT.
V. a - CLEANING THE CONDENSER
The most important thing you can do to ensure a long,
reliable service life for your Centerline is to regularly clean
the condenser coil.
The condensing unit requires regularly scheduled
cleaning to keep the finned condenser clean of lint
and dust accumulation. Keeping the condenser clean
allows the cabinet to operate more eciently and use
less energy. To clean the condenser, first disconnect
electrical power to the cabinet. Next, remove the
front lower louver panel by removing the single screw
from inside the door opening and gently pulling it
towards front (refer to previous figures 4 and 5).
NOTE: DOOR SWITCH WIRING MAY BE PRESENT AND
ATTACHED TO THE LOUVER.
Fig. 9
IV. OPERATION
-6-
V. a - CLEANING THE CONDENSER (cont’d)
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. Care should be taken
not to bend any of the condenser fins, as this will reduce
performance and compressor life. Reverse the process to
install louver assembly back in place.
SYSTEMS USING REFRIGERANT R-290 (PROPANE)
Remove any ignition source (arc, flame, heat) before cleaning
the condenser coil. If the condenser coil is inadvertently
damaged during cleaning to the point of causing a refrigerant
leak, immediately ventilate the area and call for service.
V. b - HINGE REPLACEMENT
To replace the hinge, the upper and lower panels need to
be removed from the face of the unit. The hinges can be
removed as described in section III.f for door installation.
Refer to section III.f for instructions to remove, install, and
adjust torque on doors when replacing a hinge. Please refer
service manual or contact service support for detailed
instructions on hinge replacement
V. c - REPLACING THE GASKETS
To replace the gasket, grasp it firmly by one corner and pull
it out. Before attempting to install a new gasket, both the
unit and gasket 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 11 for proper gasket placement).
V. d - CLEANING THE EXTERIOR
Exterior anodized aluminum 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 cleaners containing chlorine, this may promote
corrosion of the stainless-steel door.
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 the interior, use baking soda with warm water,
and a soft cloth. Apply with a dampened cloth and wipe in
the direction of the metal grain Use on breaker strips as
well as door and drawer gaskets.
V. f - ADJUSTING THE SHELVES
Shelves and pins are shipped with the unit. First, select the
desired location and remove the white plastic covers in the
interior back and/or interior sides by rotating them. Install
pins in the new desired location (turn clockwise to tighten).
Make sure the pins are securely tightened. Slide the shelf
on the pins as shown below & secure it to the pins using
nylon tie-wraps. Replace the white plastic covers in the
open holes from where the pins were removed.
V. CARE AND MAINTENANCE (continued)
Fig. 12
Remove single screw, slide
it up & tilt the top panel
out to take o to clean the
condenser coil & reverse the
process to re-install.
Fig. 10
Fig. 11
Inside Door
Retainer Gasket
-7-
Your new Centerline Refrigerator or Freezer is equipped
with a digital control, which precisely regulates operation.
It is supplied from the factory completely ready for use.
VI. a - INFORMATION MENU
The information available in this menu is:
* displayed only if enabled (see Configuration Parameters)
** displayed only if ACC > 0
Access to menu and information displayed:
• Press and immediately release button .
• With button or select the data to be displayed.
• Press button to display value.
• To exit from the menu, press button or wait for 10
seconds.
Initiate Stand-By:
Keeping the button pressed for 3 seconds allows the
controller to be put on a standby or output control to be
resumed (with SB=YES only).
Locking the Keypad:
The keypad lock avoids undesired, potentially dangerous
operations, which might be attempted when the controller
is operating in a public place. In the INFO menu, set
parameter LOC = YES to inhibit all functions of the buttons.
To resume normal operation of keypad, adjust setting so
that LOC = NO.
VI. b - ADJUSTING CABINET SETPOINT
Setpoint display and modification:
• Press button for at least a half second to display
the setpoint value.
• While keeping the button pressed, use button
or to set the desired value (adjustment is within
the minimum SPL and the maximum SPH limit).
• When button is released, the new value is stored.
VI. c - INITIATING A DEFROST
Automatic defrost:
Defrost starts automatically as soon as the time set with
parameter DFT has elapsed.
• Timed defrost: With DFM = TIM defrosts take place at
regular intervals when the timer reaches the value
of DFT. For example, with DFM = TIM and DFT = 36, a
defrost will take place every 6 hours.
• Optimized defrost: With DFM = FRO the timer is only
increased when the conditions occur for frost to form
on the evaporator, until the time set with parameter
DFT is matched. If the evaporator works at 0°F, defrost
frequency depends on the thermal load and climatic
conditions. With setpoints much lower than 0°F,
defrost frequency mainly depends on the refrigerator
operating time.
• Defrost time count backup: At the power-up, if DFB =
YES, the defrost timer resumes the time count from
where it was left o before the power interruption.
Vice versa, with DFB = NO, the time count re-starts
from 0. In stand-by, the accumulated time count is
frozen.
Manual or remote defrost start:
It’s possible to manually start a defrost, by pressing
button for 2 seconds.
Defrost type. Once defrost has started, Compressor and
Defrost outputs are controlled according to parameter
DTY. If FID = YES, the evaporator fans are active during
defrost.
Defrost termination. The actual defrost duration is
influenced by a series of parameters.
• Time termination: T2 = NO and T3 dierent from 2EU:
the evaporator temperature is not monitored and
defrost will last as long as time DTO.
• Temperature monitoring of one evaporator: T2 = YES
and T3 dierent from 2EU. In this case, if the sensor
T2 measures the temperature DLI before the time DTO
elapses, defrost will be terminated in advance.
Resuming thermostatic cycle:
When defrost is over, if DRN is greater than 0, all outputs
will remain o for DRN minutes, in order for the ice to melt
completely and the resulting water to drain. Moreover, if
probe T2 is active (T2 = YES), the fans will re-start when
the evaporator gets to a temperature lower than FDD; Vice
versa, if probe T2 is not active (T2 = NO) or after defrost
has come to an end, such condition does not occur by end
of the time FTO, after FTO minutes have elapsed the fans
will be switched on anyway.
VI. CONTROL BASICS
-8-
Caution: if DFM = NON or C-H = HEA all defrost functions
are inhibited; if DFT = 0, automatic defrost functions are
excluded.
VI. d - CONFIGURATION PARAMETERS
Parameter Configuration:
• To get access to the parameter configuration menu,
press button and for 5 seconds.
• With button or select the parameter to be
modified.
• Press button to display the value.
• By keeping button pressed, use button or to
set the desired value.
• When button is released, the newly programmed
value is stored and the following parameter is
displayed.
• To exit from the setup, press button or wait for 30
seconds.
VI. e - TECHNICAL DATA
Power supply
100-240Vac ±10%, 50/60Hz, 3W
Relay output max loads (240Vac)
VI. CONTROL BASICS (continued)
-9-
PAR RANGE DESCRIPTION
SPL -58..SPH Minimum limit for SP setting.
SPH SPL...180° Maximum limit for SP setting.
SP SPL... SPH Setpoint (value to be maintained in the room).
C-H REF; HEA Refrigerating (REF) or Heating (HEA) control mode.
HY0 1...10° Thermostat OFF -> ON dierential.
HY1 0...10° Thermostat ON -> OFF dierential.
CRT 0...30min Compressor rest time. The output is switched on again after CRT minutes have elapsed since the
previous switchover. We recommend to set CRT=03 with HY0<2.0°.
CT1 0...30min Compressor/Heater output run when probe T1 is faulty. With CT1=0 the output will always remain OFF.
CT2 0...30min Compressor/Heater output stop when probe T1 is faulty. With CT2=0 and CT1>0 the output will always
be ON.
Example: CT1=4, CT2= 6: In case of probe T1 failure, the compressor will cycle 4 minutes ON and 6
minutes OFF.
DFM NON;
TIM;
FRO
CRN
Defrost start mode
NON : defrost function is disabled (the following parameter will be FCM).
TIM : regular time defrost.
FRO : the defrost time count is only increased when the conditions occur for frost to form on the
evaporator (optimized time increase).
CRN : defrost is based o of compressor run time (time is based o of DAT).
DFT 0...250 Time interval among defrosts in x10 minutes. When this time has elapsed since the last defrost, a new
defrost cycle is started. Each number is multiplied by 10 minutes. 0-250 indicates 0-2500 minutes.
DAT 0…100hrs Frost accumulation timeout.
DFB NO/YES Defrost timer backup. With DFB=YES, after a power interruption, the timer resumes the count from where
it was left o with ±30 min. approximation. With DFB=NO, after a power interruption, the defrost timer
will re-start to count from zero.
DLI -58...180° Defrost end temperature.
DMD 0…30min Minimum defrost duration.
DTO 1...120min Maximum defrost duration.
DTY OFF; ELE;
GAS
Defrost type
OFF: o cycle defrost (Compressor and Heater OFF). ELE: electric defrost (Compressor OFF and Heater
ON). GAS: hot gas defrost
(Compressor and Heater ON).
DSO OFF;
LO;
HI
Defrost start optimization
OFF : no optimization.
LO : defrost waits until the compressor cut-out.
HI : defrost waits until the compressor cut-in.
SOD 0...30 min Start optimization delay.
DPD 0...240sec Evaporator pump down. At the beginning of defrost, defrost outputs (determined by DTY) are OFF for
DPD seconds.
DRN 0...30min Pause after defrost (evaporator drain down time).
DDM RT;
LT;
SP;
DEF
Defrost display mode. During defrost the display will show:
RT: the real temperature;
LT : the last temperature before defrost;
SP : the current setpoint value;
DEF : “dEF”.
VI. CONTROL BASICS (continued)
-10-
PAR RANGE DESCRIPTION
DDY 0...60min Display delay. The display shows the information selected with parameter DDM during defrost and for
DDY minutes after defrost termination.
FID NO/YES Fans active during defrost.
FDD -58...180° Evaporator fan re-start temperature after defrost.
FTO 0...120min Maximum evaporator fan stop after defrost.
FCM NON;
TMP;
TIM
Fan mode during thermostatic control.
NON : The fans remain ON all the time;
TMP : Temperature-based control. The fans are ON when the compressor is ON. When the compressor
is turned OFF, the fans remain ON as long as the temperature dierence Te-Ta is greater than FDT. The
fans are turned ON again with FDH dierential. (Te = Evaporator temperature, Ta = Air temperature);
TIM : Timed-based control. The fans are ON when the compressor is ON. When the compressor is OFF,
the fans switch ON and OFF according to parameters FT1, FT2,FT3
FDT -12...0° Evaporator-Air temperature dierence for the fans to turn OFF after the compressor has stopped.
FDH 1...12° Temperature dierential for fan re-start.
Example: FDT = -1, FDH=3. In this case, after the compressor has stopped, the fans are OFF when Te >
Ta - 1 (FDT), whereas the fans are ON when Te < Ta - 4 (FDT-FDH).
FT1 0...180sec Fan stop delay after compressor/heater stop. See Fig. 2
FT2 0...180 Timed fan stop in x10 seconds. With FT2=0 the fans remain on all the time.
FT3 0...180 Timed fan run in x10 seconds. With FT3=0, and FT2 > 0, the fans remain o all the time.
ATM NON;
ABS;
REL
Alarm threshold management.
NON : all temperature alarms are inhibited (the following parameter will be ACC).
ABS : the values programmed in ALA and AHA represent the real alarm thresholds.
REL : the alarm threshold is obtained by the sum of setpoint, thermostat dierential and ALR/AHR.
ALA -58... 180° Low temperature alarm threshold.
AHA -58... 180° High temperature alarm threshold.
ALR -12... 0° Low temperature alarm dierential. With ALR=0 the low temperature alarm is excluded.
AHR 0... 12° High temperature alarm dierential. With AHR=0 the high temperature alarm is excluded.
ATI T1; T2; T3 Probe used for temperature alarm detection.
ATD 0... 120 min Delay before alarm temperature warning.
ACC 0...52 weeks Condenser periodic cleaning. When the compressor operation time, expressed in weeks, matches the ACC
value programmed, “CL” flashes in the display. With ACC=0 the condenser cleaning warning is disabled
and CND disappears from Info Menu.
IISM NON;
MAN;
ECO;
DI
Switchover mode to second parameter set
NON : inhibition to use the second parameter group (the following parameter will be SB).
MAN : button switches the two parameter groups over.
ECO : automatic switchover to the second parameter group, when ECO conditions are detected.
DI : switchover to the second parameter group when DIx input is on.
IISL -58... IISH Minimum limit for IISP setting.
IISH IISL... 180° Maximum limit for IISP setting.
IISP IISL... IISH Setpoint in mode 2.
IIH0 1... 10° Thermostat OFF->ON dierential in mode 2.
IIH1 0... 10° Thermostat ON->OFF dierential in mode 2.
IIDF 0...250 Time interval among defrosts in mode 2 in x10 minutes.
IIFC NON;
TMP; TIM
Fan control in mode 2. See FCM.
VI. CONTROL BASICS (continued)
-11-
PAR RANGE DESCRIPTION
ECS 1...5 Controller sensitivity for the automatic switchover from Group I to Group II (1=minimum, 5=maximum).
ECS 1…5 Controller sensitivity for the automatic switchover.
EPT 0...240 min Eco pull-down time. Only with IISM=ECO. Group I parameters are used in regulation for at least EPT
minutes. See Fig.3
SB NO/YES Stand-by button enabling.
DSM NON;
ALR;
STP
Door switch input mode:
NON : door switch inhibited
ALR : when DIx=DOR and the digital input is on, an alarm is generated after ADO minutes
STP : when DIx=DOR and the digital input is on, in addition to the alarm, the fans are immediately
stopped and the compressor is stopped after CSD minutes.
DAD 0...30 min Delay before door open alarm warning.
CSD 0...30 min Compressor/heater stop delay after door has been opened.
D1O NON;
DOR;
ALR;
IISM;
RDS
DI1 digital input operation
NON : digital input 1 not active.
DOR : door input.
ALR : when the input is on, an alarm is generated (if AHM=STP, the compressor is stopped and the
defrosts are suspended).
IISM : when the input is on, the controller will use group 2 parameters.
RDS : when the input is on, a defrost is started (remote control).
D1A OPN; CLS. DI1 digital input activation.
OPN : on open CLS : on close
D2O See D1O DI2 digital input operation. See D1O.
D2A OPN; CLS. DI2 digital input activation. OPN : on open CLS : on close
PSL -58…158 Minimum setpoint adjusted via potentiometer.
PSR 0…15 Range of setpoint adjusted via potentiometer.
LSM NON;
MAN;
ECO;
DI1;
DI2; DI3.
Light control mode
NON : light output not controlled.
MAN : light output controlled through button (if OAx=LGT).
ECO : lights activated/deactivated following the ECO state.
DIx : lights activated/deactivated following the DIx state.
LSA OPN; CLS Light activation (only with LSM=ECO or LSM=DIx). OPN : lights on with DIx open or ECO mode
deactivated. CLS : lights on with DIx closed or ECO mode activated.
OT1 0…600 sec Activation time of OA1
OT2 0…600 sec Pause between OA1 activation
OA1 NON;
LGT;
0-1;
2CU;
2EU;
ALO;
ALC
AUX 1 output operation
NON : output disabled (always o).
LGT : output enabled for light control.
0-1 : the relay contacts follow the on/standby state of controller.
2CU : output programmed for the control of an auxiliary compressor.
2EU : output enabled for the control of the electrical defrost of a second evaporator.
ALO : contacts open when an alarm condition occurs.
ALC : contacts make when an alarm condition occurs.
2CD 0...120 sec Auxiliary compressor start delay. If OAx=2CU the auxiliary output is switched on with a delay of 2CD
seconds after the main compressor has cut-in. Both compressors are turned o at the same time.
VI. CONTROL BASICS (continued)
-12-
PAR RANGE DESCRIPTION
OS1 -12.5..12.5° Probe T1 oset.
T2 NO/YES Probe T2 enabling (evaporator).
OS2 -12.5..12.5° Probe T2 oset.
T3 NON;
DSP;
CND;
2EU
Auxiliary probe T3 operation
NON : probe T3 not fitted.
DSP : temperature T3 to be displayed.
CND : condenser temperature measurement.
2EU : second evaporator temperature measurement.
OS3 -12.5..12.5° Probe 3 oset.
AHM NON;
ALR;
STP;
Operation in case of high condenser alarm
NON : high condenser alarm inhibited.
ALR : in case of alarm, “HC” flashes in the display and the buzzer is switched on.
STP : in addition to the alarm symbols displayed, the compressor is stopped and defrosts are
suspended.
AHT -50...110° Condensation temperature alarm (referred to T3 probe).
TLD 1...30 min Delay for minimum temperature (TLO) and maximum temperature (THI) logging.
TDS T1;
1-2; T3
Selects the temperature probe to be displayed. T1 : probe T1
1-2 : the AVG-weighted average between T1 and T2 T3 : probe T3
AVG 0...100% The relative weight of T2 on T1 (if TDS = 1-2)
Example 1: T1 = -5°, T2 = -20°, AVG = 100%. The displayed temperature will be -20° (T1 has no eect)
Example 2: T1 = -5°, T2 = -20°, AVG = 60%. The displayed temperature will be -14.
SCL 1°C;
2°C;
°F
Readout scale.
1°C : measuring range -50…110°C (0.1°C resolution within -9.9 ÷ 19.9°C interval, 1°C outside)
2°C : measuring range -50 … 110°C °F : measuring range -55 … 180°F
SIM 0...100 Display slowdown.
ADR 1...255 TRL-002 address for PC communication.
NPR 0…1 Setup programmed.
STT 0…255 Setup traceability.
VI. CONTROL BASICS (continued)
VI. f - COMPONENTS AND WIRING DIAGRAM
Thermostat output
Fan output
Defrost output
Activation of 2
nd
patameter set
Alarm
Manual activation / Increase button
Exit / Stand-by button
Indications:
-13-
VII. a -TROUBLESHOOTING GUIDE
FIND YOUR PROBLEM HERE REMEDY
1. Condensing unit fails to start.
a.Check if cord & plug has been disconnected.
b.Check control temperature setting.
2. Condensing unit operates for prolonged periods or
continuously.
a.Are doors closing properly?
b.Dirty condenser or filter. Clean properly.
c.Evaporator coil iced. Needs to defrost. See instructions for
setting a manual defrost cycle on section VI.c.
3. Food compartment is too warm.
a.Check door(s) and gasket(s) for proper seal
b.Perhaps a large quantity of warm food has recently been
added or the door was kept open for a long period of
time, in both cases, allow adequate time for the cabinet
to recover its normal operating temperature.
c.Control setting too high, readjust per instructions on
section VI.b.
d.Check that condensing coil is clean.
4. Food compartment is too cold.
a.Perhaps a large quantity of very cold or frozen food
has recently been added. Allow adequate time for the
cabinet to recover its normal operating temperature.
b.Adjust the control to a warmer setting, see section VI.b.
5. Condensation on the exterior surface.
a.Check door alignment and gaskets for proper seal.
b.Condensation on the exterior surface of the unit is
perfectly normal during periods of high humidity.
6. Compressor hums but does not start. a.Call for service.
7. No power to unit
a.Check if cord & plug has been disconnected.
b.Check power supply breaker.
VII. TROUBLESHOOTING GUIDE
-14-
VIII. 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 condenser coil clean?
Is the power switch on?
If after checking the above items and the unit is still not operating properly, please contact an authorized Centerline by
Traulsen service agent:
4401 Blue Mound Road Fort Worth, TX 76106
(800) 825-8220.
Centerline by Traulsen reserves the right to change specifications or discontinue models without notice.
This appliance is marked with the ISO 7010-W021 warning label to indicate the presence of FLAMMABLE REFRIGERANTS.
Prior to beginning work on systems containing FLAMMABLE REFRIGERANTS, safety checks are necessary to ensure that
the risk of ignition is minimized.
VENTILATED AREA
Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any
hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should
safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
CABLING
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges, or any other
adverse environmental eects. The check shall also take into account the eects of aging or continual vibration from
sources such as compressors or fans.
DETECTION OF FLAMMABLE REFRIGERANTS
Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant
leaks. A halide torch (or any other detector using a naked flame) shall not be used.
The following leak detection methods are deemed acceptable for all refrigerant systems. Electronic leak detectors may
be used to detect refrigerant leaks but, in the case of FLAMMABLE REFRIGERANTS, the sensitivity might not be
adequate, or might need recalibration. (Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that
the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment
shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed, and the
appropriate percentage of gas (25 % maximum) is confirmed.
Leak detection fluids are also suitable for use with most refrigerants but the use of detergents containing chlorine shall
be avoided as the chlorine can react with the refrigerant and corrode the copper pipe-work.
VIII. SERVICE/WARRANTY INFORMATION
-15-
VIII. SERVICE/WARRANTY INFORMATION (continued)
NOTE: Examples of leak detection fluids are
• bubble method
• fluorescent method agents
If a leak is suspected, all naked flames shall be removed/extinguished.
If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system,
or isolated (by means of shut o valves) in a part of the system remote from the leak. Removal of refrigerant shall be
according to the removal & evacuation section below.
REMOVAL & EVACUATION
When breaking into the refrigerant circuit to make repairs- or for any other purpose - conventional procedures shall
be used. However, for flammable refrigerants it is important that best practice be followed, since flammability is a
consideration. The following procedure shall be adhered to:
a) safely remove refrigerant following local and national regulations;
b) purge the circuit with inert gas;
c) evacuate
d) purge with inert gas;
e) open the circuit by cutting or brazing.
The refrigerant charge shall be recovered into the correct recovery cylinders if venting is not allowed by local and
national codes. For appliances containing flammable refrigerants, the system shall be purged with oxygen- free
nitrogen to render the appliance safe for flammable refrigerants. This process might need to be repeated
several times. Compressed air or oxygen shall not be used for purging refrigerant systems .
For appliances containing flammable refrigerants, refrigerants purging shall be achieved by breaking the vacuum in
the system with oxygen-free nitrogen and continuing to fill until the working pressure is achieved, then venting to
atmosphere, and finally pulling down to a vacuum. This process shall be repeated until no refrigerant is within the
system (optional for A2L). When the final oxygen-free nitrogen charge is used, the system shall be vented down to
atmospheric pressure to enable work to take place.
Ensure that the outlet for the vacuum pump is not close to any potential ignition sources and that ventilation is
available.
VIII. b - SPARE PARTS INFORMATION
To purchase replacement parts or to speak to service support for Centerline by Traulsen units please contact our Ft. Worth
facility by phone at 800-825-8220 or fax to 817-740-6748 (parts) or 817-740-6757 (service).
Note: When calling for spare parts or service support, please make sure you have model and serial number of unit available.
4401 Blue Mound Rd.
Ft. Worth, TX 76106
800-825-8220
Input Power (ELIN) - FOR INDOOR USE ONLY
115-208/230V ~ 60Hz 8.0A (8,0A)
MODEL:
MODELO:
MODELE:
RDT232WUT-FHS
S/N: T25364A14
REFRIGERANT / REFRIGERANTE / RÉFRIGÉRANT
SYS1 (REFM): R-134a 8.4oz 238.1 g (238,1 g)
Hi Press. (PRESH): 500psi 3.45 MPa (3,45 Mpa)
Lo Press. (PRESL): 250 psi 1.72 Mpa (1,72 Mpa)
SYS2 (REFA): R-404a 12.5oz 354.4g (354,4g)
Hi Press. (PRESH): 500psi 3.45MPa (3,45MPa)
Lo Press. (PRESL): 250psi 1.72Mpa (1,72Mpa)
(Symbol 1)
(Alt Safety / Other
1)
(Symbol 2)
(Alt. San / Other 2)
(Symbol 3)
(Alt. En. / Other 3)
(Symbol 4)
(WEEE)
(Symbol 5)
(Safety)
(Symbol 6)
(Sanitaon)
(Symbol 7)
(Energy)
(Symbol 8)
(Customer QR
Code / Other 4)
Device/Part Number: PartNum (UL/NSF Notes)
SCAN FOR SERVICE INFO
COMPONENTS / COMPOSANTS / COMPONENTES
COMP AMPS: EVAP FAN AMPS:
COND FAN AMPS: LIGHT WATTS:
DEF HTR AMPS: CTRL AMPS:
DOOR HTR AMPS: MIN AMPS:
MAX AMPS:
370-60297-00 REV.A 11/20/14
4401 Blue Mound Rd.
Ft. Worth, TX 76106
800-825-8220
Input Power (ELIN) - FOR INDOOR USE ONLY
115-208/230V ~ 60Hz 8.0A (8,0A)
MODEL:
MODELO:
MODELE:
RDT232WUT-FHS
S/N: T25364A14
REFRIGERANT / REFRIGERANTE / RÉFRIGÉRANT
SYS1 (REFM): R-134a 8.4oz 238.1 g (238,1 g)
Hi Press. (PRESH): 500psi 3.45 MPa (3,45 Mpa)
Lo Press. (PRESL): 250 psi 1.72 Mpa (1,72 Mpa)
SYS2 (REFA): R-404a 12.5oz 354.4g (354,4g)
Hi Press. (PRESH): 500psi 3.45MPa (3,45MPa)
Lo Press. (PRESL): 250psi 1.72Mpa (1,72Mpa)
(Symbol 1)
(Alt Safety / Other
1)
(Symbol 2)
(Alt. San / Other 2)
(Symbol 3)
(Alt. En. / Other 3)
(Symbol 4)
(WEEE)
(Symbol 5)
(Safety)
(Symbol 6)
(Sanitaon)
(Symbol 7)
(Energy)
(Symbol 8)
(Customer QR
Code / Other 4)
Device/Part Number: PartNum (UL/NSF Notes)
SCAN FOR SERVICE INFO
COMPONENTS / COMPOSANTS / COMPONENTES
COMP AMPS: EVAP FAN AMPS:
COND FAN AMPS: LIGHT WATTS:
DEF HTR AMPS: CTRL AMPS:
DOOR HTR AMPS: MIN AMPS:
MAX AMPS:
370-60297-00 REV.A 11/20/14
VIII. c - WARRANTY REGISTRATION:
The warranties for your new Traulsen unit may be registered with us by by completing warranty information online, via
our website www.CenterlineFoodEquipment.com. Click on the Product Registration text at the footer of the home page.
You may also register your product by calling us directly at 800-825-8220.
Model Number
Serial Number
-16-
Form Number: TR36229 | Part Number:375-60364-00 (Rev. E) | Revision Date: 12-2024
Traulsen © All Rights Reserved
4401 Blue Mound Road Fort Worth, Texas 76106 (USA)
Phone: 800.825.8220 | Service Fax: 817.740.6757 | E-mail: service@traulsen.com | Website: centerlinefoodequipment.com
