Traulsen RAC 37 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:
RAC37 Air-Curtain Refrigerators
This Traulsen unit is built to our highest quality standards. We build our refrigerators, freezers and heated cabinets this way as a matter of pride. This philosophy has made Traulsen the leader in commercial refrig­eration since 1938. We thank you for your choice and confidence in Traulsen equipment and we know you will receive many years of utility from this equipment.
All Traulsen units are placed on a permanent record file with the service department. In the event of any future questions you may have, please refer to the model and serial number found on the name tag affixed to the unit. Should you need service, however, call us on our toll free number, 800-825-8220 between 7:30 am and 4:30 pm CST, Monday thru Friday. It is our pleasure to help and assist you in every possible way.
INSTALLER
COMPLETE THE FOLLOWING INFORMATION PRIOR TO UNIT INSTALLATION
INITIAL START DATE: SERIAL NO.
MODEL TYPE:
COMPANY/INDIVIDUAL NAME:
INSTALLER:
RAC DOC REV. 2/03 P/N 375-70001-00
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-Clearance Page 2 d-Wiring Diagram Page 2 e-Cord & Plug Page 2 f-Power Supply Page 2
IV. INTENDED USE
a-Overview Page 2 b-Typical Operating Parameters Page 2 c-Suggested Pan Sizing Page 3 d-Product Unloading Page 3
V. PRODUCT FEATURES
a-Casters Page 3 b-Grips & Handles Page 3 c-Microprocessor Control Page 3 d-On Demand Defrost Page 3 e-Condensate Evaporator Page 3 f-Tray Slides Page 3 g-Wrap Around Bumper Page 3
VI. OPERATION
a-Air Curtain Operation Overview Page 4 b-Normal Temperature Ranges Page 4 c-Loading/Unloading The Unit Page 4 d-Recommendation Summary Page 4
VI. ELECTRONIC CONTROLLER
a-Control Overview Page 3 b-Control Feature: Temp Recall Page 3 c-Control Feature: ON/OFF Page 3 d-Control Feature: On Light Page 4 e-Control Feature: Cycle Light Page 4 f-Control Feature: On Demand Defrost Page 4 g-Control Feature: Two-Stage Thermostat Page 4 H-Control Function Buttons Page 4
VII. CARE & MAINTENANCE
a-Cleaning The Condenser Page 5 b-Cleaning The Exterior Page 5 c-Cleaning The Interior Page 5
VIII. OTHER
a-Service Information Page 5 b-Spare Parts Page 5 c-Warranty Registration Page 5
IX. TROUBLESHOOTING GUIDE Page 6-7 X. WIRING DIAGRAM Page 8 XI. WARRANTY INFORMATION Page 9 XII. INDEX Page 10
FORT WORTH, TX.
SERIAL MODEL VOLTS Hz PH
TOTAL CURRENT AMPS MINIMUM CIRCUIT AMPS MAXIMUM OVERCURRENT PROTECTION AMPS LIGHTS WATTS HEATERS AMPS
REFRIGERANT TYPE OZ DESIGN PRESSURE HIGH LOW
REFRIGERANT TYPE OZ DESIGN PRESSURE HIGH LOW
370-60294-00 REV (A)
I. THE SERIAL TAG
The serial tag is a permanently affixed sticker on which is recorded vital electrical and refrigeration data about your Traulsen product, as well as the model and serial number. This tag is located on the upper right interior side wall of all air curtain models.
READING THE SERIAL TAG
Serial = The permanent ID# of your Traulsen
Model = The model # of your Traulsen
Volts = Voltage
Hz = Cycle
PH = Phase
Total Current = Maximum amp draw
Minimum Circuit = Minimum circuit required
Lights = Light wattage
Heaters = Heater amperage
Refrigerant = Refrigerant type used
Design Pressure = High & low side operating
pressures and refrigerant charge
Agency Labels = Designates agency listings
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II. RECEIPT INSPECTION
III. INSTALLATION (contd)
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 to prevent damage.
You should carefully inspect your Traulsen unit for damage during delivery. If damage is detected, you should save all the crating materials and make note on the carriers Bill Of Lading describing this. A freight claim should be filed immediately. If damage is sub­sequently noted during or immediately after installa­tion, contact the respective carrier and file a freight claim. Under no condition may a damaged unit be re­turned to Traulsen & Co. without first obtaining writ­ten permission (return authorization).
III. INSTALLATION
III. a - LOCATION: Select a proper location for your Traulsen unit, away from extreme heat or cold. Allow enough clearance between the unit and the side wall so that the door (s)
may open a minimum of 90°.
III. e - CORD & PLUG: Traulsen Air Curtain models are supplied with a cord & plug attached. It is shipped coiled at the bottom 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 20 amp 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. b - PACKAGING: Traulsen Air Curtain units are shipped from the fac­tory strapped 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.
To remove the wooden pallet, first if at all possible, we suggest that the cabinet remain strapped to the pallet during all transportation to the point of final installa­tion. The straps can then be removed with a wire cut­ter and the unit rolled off the skid. 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.
III. c - CLEARANCE: It is important for the proper operation and longevity of your Traulsen unit that it have adequate provisions for air supply to the compressor. Allow approximately 6-12 between the back grill of the unit and the wall for proper air flow.
III. d - WIRING DIAGRAM: Refer to the wiring diagram 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.
IV. INTENDED USE
IV. a - OVERVIEW: The Air Curtain Refrigerator is more than just a refrig­erator. When the door of the unit is closed, it operates as a force air refrigerator with a highly efficient refrig­eration system that provides faster pull down” and recovery times. When the door is opened, a series of blower fans create a “wall” of air and areas of pres­sure, localizing a pattern of air movement across the cabinet opening. This AIR CURTAIN seals itself around objects so that, in effect, the door is both “open” and closed at the same time.
For best results, the air curtain was designed for “low profile” food products typical of tray line/assembly line and flight kitchen operations.
IV. b - TYPICAL OPERATING PARAMETERS:
The “curtain” is capable of maintaining 45°F tempera-
ture or below for approximately 45 minutes. HOW­EVER, actual time your unit will run in this tempera­ture zone depends on many factors, such as, room ambient temperature and humidity levels, the amount of time your unit was allowed to precondition the food(s), food temperatures when placed in the unit, type of food packaging, and profile of foods. It should also be noted that there is a lag time between the am­bient airtemperature in the cabinet and that of the actual product temperature. The food temperature differential can be 10 - 20 degrees F cooler than the temperature indicated by the temperature display.
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IV. INTENDED USE (continued) V. PRODUCT FEATURES (cont’d)
SUGGESTED PAN SIZING:
IV. c ­Traulsen has designed this unit to operate with either 18 x 26 or 12 x 20 pans. Generally, 12 x 20 pans block air flow which leads to reduced unit per­formance. While we strongly recommend the use of 18 x 26 rather than 12 x 20 pans, the latter may still be used. However, when using 12x 20” pans these should be placed towards the top and bottom of the unit to reduce the total blockage of air flow.
IV. d -
PRODUCT UNLOADING: When unloading product from the Air Curtain refrogerator, we recommend that this be done from the top down.
V. PRODUCT FEATURES
V. a - CASTERS: 6 high casters are supplied standard for Air-Curtain models. They are attached to 10-gauge stainless steel corner plate reinforcements/stress pads. These are shipped already installed on the unit for immediate use.
V. b - GRIPS & HANDLES: For easy mobility, stainless steel recessed hand grips are provided on the left and right sides. In addition, a 1 welded tubular push/pull handle is attached to the rear of the cabinet.
V. c - MICROPROCESSOR CONTROL: All Traulsen Air Curtain units manufactured after Janu­ary 2003 include a 2-Stage microprocessor control. Units manufactured prior to that date were provided with manual electromechanical controls
V. d - ON DEMAN DEFROST: Traulsen Air-Curtain models are supplied with a mo­mentary defrost cycle. It is located on the front con­trol (see figure 1), and by depressing the switch, the unit will momentarily disable the compressor, the coil and the fans. This On-Demand Defrostfeature al­lows proper defrosting of the accumulated condensa­tion. Condensate is removed through use of an elec­tric condensate evaporator drain pan.
V. e - CONDENSATE EVAPORATOR: During the On-Demand Defrostcycle or the Off Cycle of the compressor, the evaporator coil will de­frost. The condensate from the evaporator coil flows from the top of the unit down a drain in the back to a condensate pan. Vapor escapes through the back grill. The vapor can sometimes be visible and should be considered a normal operating condition.
Proper attention should be given to defrosting your unit. Every “event” or time the unit is used with the door open, the coil will build-up ice. This reduces the effectiveness of the overall operation of the unit.
V. f - TRAY SLIDES: Ten (10) pairs of removable tray slides are provided standard at 4-1/2” spacing. Additional tray slides may also be purchased for a total of no more than 15 pairs at 3spacing. Each tray slide can accommodate ei­ther one (1) 18x 26or one (1) 12x 20pan. The tray slides allow for individual pans to be pulled out 3/4 of their length without tipping. In addition, the side wall air ducts are designed with two (2) tabs, which act as a backstop, providing better air flow, which is important to maintaining proper temperatures through­out the cabinet.
V. g - WRAP-AROUND PERIMETER BUMPERS: As the Air-Curtain refrigerator was designed to be mo­bile, a full perimeter rubber bumper guard is included to protect walls and doors during movement.
VI. ELECTRONIC CONTROLLER
VI. a - CONTROL OVERVIEW: The Traulsen Air Curtain models are supplied standard with an easy to use microprocessor control. It fea­tures several important user functions, greatly enhanc­ing the overall utility of the cabinet.
VI. b - CONTROL FEATURE - TEMP RECALL: This feature allow the operator to display either the actual internal cabinet air temperature (default), or the desired Set-Point temperature (alternate).
ACTUAL: The factory default setting shows the actual internal cabinet temperature and acts as a digital ther­mometer. A momentary touch of the TEMP RECALL button will recall the original dial setting. The display will then automatically return the displaying the ac­tual internal cabinet temperature.
SET-POINT: To display the set-point temperature in­stead of the actual internal cabinet temperature, press and hold the TEMP RECALL button for five (5) sec­onds. The fourth digit on the display will flash either S (SET) or A (ACTUAL) to indicate which mode is active. To switch back again, repeat this step holding the TEMP RECALL button for five (5) seconds.
VI. c - CONTROL FEATURE - ON/OFF: This button has two uses, the first is to turn the unit ON and OFF. The second allows for the temperature display to be changed to indicate either degrees Fahr­enheit or degrees Celsius.
To change between temperature scales, press and hold the ON/OFF button for five (5) seconds. The display will then switch from “dgF” to “dgC”. Repeat this step to change the temperature scale again.
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