randell 2127AC Air Curtain Refrigerator Instruction Manual

2127AC Air Curtain Refrigerator
Instruction Manual

2127AC Air Curtain Refrigerator

This manual provides information on installation, operating, maintenance, trouble shooting & replacement parts for
2127AC
2127PAC
TAS PTAC
AIR-CURTAIN REFRIGERATOR

NOTIFY CARRIER OF DAMAGE AT ONCE.
It is the responsibility of the consignee to inspect the container upon receipt of same and to determine the possibility of any damage, including concealed damage. Randell suggests that if you are suspicious of damage to make a notation on the delivery receipt. It will be the responsibility of the consignee to file a claim with the carrier. We recommend that you do so at once.
Manufacture Service/Questions 888-994-7636.
Information contained in this document is known to be current and accurate at the time of printing/creation.
Unified Brands recommends referencing our product line websites, unifiedbrands.net, for the most updated product information and specifications.
Congratulations on your recent purchase of Randell food service equipment, and welcome to the growing family of satisfied Randell customers.
Our reputation for superior products is the result of consistent quality craftsmanship. From the earliest stages of product design to successive steps in fabrication and assembly, rigid standards of excellence are maintained by out staff of designers, engineers, and skilled employees.
Only the finest heavy-duty materials and parts are used in the production of Randell brand equipment. This means that each unit, given proper maintenance will provide years of trouble free service to its owner.
In addition, all Randell food service equipment is backed by some of the best warranties in the food service industry and by our professional staff of service technicians.
Retain this manual for future reference.
NOTICE: Due to a continuous program of product improvement, Randell reserves the right to make changes in design and specifications without prior notice.
NOTICE: Please read the entire manual carefully before installation. If certain recommended procedures are not followed, warranty claims will be denied.
MODEL NUMBER
SERIAL NUMBER
INSTALLATION DATE _____
The serial number is located in the cabinet left side or back wall.
800-621-8560

Randell Service and Parts Hotline

Warranty Policies
Congratulations on your purchase of a Randell Manufactured piece of equipment. Randell believes strongly in the products it builds and backs them with the best warranty in the industry. Standard with every unit is the peace of mind that this unit has been thoroughly engineered, properly tested and manufactured to excruciating tolerances, by a manufacturer with over 30 years of industry presence. On top of that front end commitment, Randell has a dedicated staff of certified technicians that monitor our own  technical service hotline at 1-800-621-8560 to assist you with any questions or concerns that may arise after delivery of your new Randell equipment.
PARTS WARRANTY

1. One year parts replacement of any and all parts that are found defective in material or workmanship. Randell warrants all component parts of manufactured new equipment to be free of defects in material or workmanship, and that the equipment meets or exceeds reasonable industry standards of performance for a period of one year from the date of shipment from any Randell factory, assembly plant or warehouse facility.
   NOTE: warranties are effective from date of shipment, with a thirty day window to allow for shipment, installation and set-up. In the event equipment was shipped to a site other than the final installation site, Randell will warranty for a period of three months following installation, with proof of starting date, up to a maximum of fifteen months  from the date of purchase.

2. Free ground freight of customer specified location for all in warranty parts within continental U.S. Component part warranty does not cover glass breakage or gasket replacement. Randell covers all shipping cost related to component part warranty sent at regular ground rates (UPS, USPS). Freight or postage incurred for any express or specialty methods of shipping are the responsibility of the customer.

LABOR COVERAGE
In the unlikely event a Randell manufactured unit fails due to defects in materials or workmanship within the first ninety days, Randell agrees to pay the contracted labor rate performed by an Authorized Service Agent (ASA).
Any work performed by a non-ASA will not be honored by Randell. Please consult Randell Technical Support (800-621-8560) for a complete listing of ASAs or visit the service page of our website: www.unifiedbrands.net.
Warranties are effective from date of shipment, with a thirty day window to allow for shipment, installation and setup. Where equipment is shipped to any site other than final installation, Randell will honor the labor warranty for a period of ninety days following installation with proof of starting date, up to a maximum of six months from date of purchase.
Temperature adjustments are not covered under warranty, due to the wide range of ambient conditions.
To request a warranty approval number, call our Field Service Department at: 1-800-621-8560
WHEN OPTIONAL 5 YEAR COMPRESSOR WARRANTY APPLIES

1. Provide reimbursement to an ASA for the cost of locally obtained replacement compressor in exchange for the return of the defective compressor sent back freight prepaid.
   Note: Randell does limit amount of reimbursement allowed and does require bill from local supply house where compressor was obtained (customer should not pay servicing agent up front for compressor).

2. Provide repair at the manufacturing facility by requiring that the defective unit be sent back to Randell freight prepaid. Perform repair at the expense of Randell and ship the item back to the customer freight collect.

3. Furnish complete condensing unit freight collect in exchange for the return of the defective compressor sent back freight prepaid. (Decisions on whether or not to send complete condensing units will be made by Randell’s in-house service technician).

WHEN OPTIONAL LABOR EXTENSION POLICY APPLIES
Randell will provide reimbursement of labor to an ASA for any customer that has an optional labor extension of our standard warranty. (Contracted rates do apply) Randell offers both 1 and 2 year extensions. Labor extensions begin at the end of our standard warranty and extend out 9 months to 1 calendar year or 21 months to 2 calendar years from date of purchase. Please contact Randell Manufacturing’s technical service hotline at 1-800-621-8560 for details and any question on Authorized Service Agents (ASA).
WHEN EXPORT WARRANTIES APPLY

1. Randell Manufacturing covers all non-electrical components under the same guidelines as our standard domestic policy.
2. All electrical components operated on 60 cycle power are covered under our standard domestic policy.
3. All electrical components operated on 50 cycle power are covered for 90 days from shipment only.
4. Extended warranty options are not available from the factory.

ITEMS NOT COVERED UNDER WARRANTY

1. Maintenance type of repairs such as condenser cleaning, temperature adjustments, clogged drains and unit leveling.

2. Randell does not cover gaskets under warranty. Gaskets are a maintenance type component that are subject to daily wear and tear and are the responsibility of the owner of the equipment. Because of the unlimited number of customer related circumstances that can cause gasket failure all gasket replacement issues are considered nonwarranty.
   Randell recommends thorough cleaning of gaskets on a weekly basis with a mild dish soap and warm water. With proper care Randell gaskets can last up to two years, at  which time we recommend replacement of all gaskets on the equipment for the best possible performance.
   NOTICE: FOOD LOSS IS NOT COVERED UNDER WARRANTY

3. Repairs caused by abuse such as broken glass, freight damage, or scratches and dents.

4. Electrical component failure due to water damage from cleaning procedures.

QUOTATIONS
Verbal quotations are provided for customer convenience only and are considered invalid in the absence of a written quotation. Written quotations from Randell are valid for 30 days from quote date unless otherwise specified. Randell assumes no liability for dealer quotations to end-users.
SPECIFICATION & PRODUCT DESIGN
Due to continued product improvement, specification and product design may change without notice. Such revisions do not entitle the buyer to additions. Changes or replacements for previously purchased equipment.
SANITATION REQUIREMENTS
Certain areas require specific annotation requirements other than N.S.F. & U.L. standards. Randell must be advised of these specifications before fabrication of equipment. In these special circumstances, a revised quotation may be required to cover additional costs. Failure to notify Randell before fabrication holds the dealer accountable for all additional charges.
CANCELLATIONS
Orders canceled prior to production scheduling entered into engineering/production and cancelled are subject to a cancellation charge (contact factory for details).
STORAGE CHARGES
Randell makes every effort to consistently meet our customer’s shipment expectations. If after the equipment has been fabricated, the customer requests delay in shipment, and warehousing is required:

1. Equipment held for shipment at purchasers request for a period of 30 days beyond original delivery date specified will be invoiced and become immediately payable.
2. Equipment held beyond 30 days after the original delivery date specified will also include storage charges.

SHIPPING & DELIVERY
Randell will attempt to comply with any shipping, routing or carrier request designated by dealer, but reserves the right to ship merchandise via any responsible carrier at the time equipment is ready for shipment. Randell will not be held responsible for any carrier rate differences; rate differences are entirely between the carrier and purchaser. Point of shipping shall be determined by Randell (Weidman, MI/Tucson, AZ/Jackson, MS). At dealer’s request, Randell will endeavor whenever practical to meet dealer’s request. Freight charges to be collect unless otherwise noted.
DAMAGES
All crating conforms to general motor carrier specifications. To avoid concealed damage, we recommend inspection of every carton upon receipt. In the event the item shows rough handling or visible damage to minimize liability, a full inspection is necessary upon arrival. Appearance of damage will require removing the crate in the presence of the driver. A notation must be placed on the freight bill and signed for by the truck driver at the time of delivery. Any and all freight damage that occurs to a Randell piece of equipment as a result of carrier handling is not considered under warranty, and is not covered under warranty guidelines. Any freight damage incurred during shipping needs to have a freight claim filed by the receiver with the shipping carrier. Consignee is responsible for filing of freight claims when a clear delivery receipt is signed. Claims for damages must be filed immediately (within 10 days) by the consignee with the freight carrier and all cartons and merchandise must be retained for inspection.
RETURNED GOODS
Authorization for return must first be obtained from Randell before returning any merchandise. Any returned goods shipment lacking the return authorization number will be refused, all additional freight costs to be borne by the returning party. Returned equipment must be shipped in original carton, freight prepaid and received in good conditions. Any returned merchandise is subject to a minimum handling charge (consult factory for rate).
INSTALLATION
Equipment installation is the responsibility of the dealer and/or their customer. Randell requires all equipment to be professionally installed.
PENALTY CLAUSES
Dealer penalty clauses, on their purchase order or contractually agreed to between the dealer and their clients are not binding on Randell. Randell does not accept orders subject to penalty clauses. This agreement supersedes any such clauses in dealer purchase orders.
*FOOTNOTES IN REFERENCE TO PARAGRAPHS ABOVE

1. Herein called Randell.
2. NET means list price less discount, warranty, labor policy, freight, Randell delivery and other miscellaneous charges.
   CASH DISCOUNTS WILL BE CALCULATED ON NET ONLY.

Unit Specifications

2127AC Air Curtain Single Door Refrigerator. Model 2127AC shown.

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Air Curtain Pass Through Refrigerator. Model TAS PTAC shown.

Unit Installation

SELECTING A LOCATION FOR YOUR NEW UNIT
The following conditions should be considered when selecting a location for your unit:

1. Floor Load: The area on which the unit will rest must be level, free of vibration, and suitably strong enough to support the combined weights of the unit plus the maximum product load weight
2. Clearance: Clearance for opening the drawer and access to its contents is the only requirements. Do not place any object that can block the ventilation exhaust from the machine compartment register.
3. Ventilation: The air cooled self contained unit requires a sufficient amount of cool clean air. Avoid surrounding your equipment stand around other heat generating equipment and out of direct sunlight.
   Also, avoid locating in an unheated room or where the room temperature may drop below 55° F or above 90° F.

INSTALLATION CHECKLIST
After the final location has been determined, refer to the following checklist prior to start-up:

1. Check all exposed refrigeration lines to ensure that they are not kinked, dented, or rubbing together.

2. Check that the condenser and evaporator fans rotate freely without striking any stationary members.

3. Unit must be properly leveled; check all legs or casters to ensure they all are in contact with the floor while maintaining a level work surface.
   Adjusting bullet feet heights or shimming casters may be necessary if the floor is not level. NOTE: Damage to equipment may result if not followed. Randell is not responsible for damage to equipment if improperly installed.

4. Plug in unit and turn on main on/off power switch. The main power switch is located in the front panel next to the digital control

5. Allow unit time to cool down to temperature. If temperature adjustments are required, the temperature control is located on the front panel.
   Confirm that the unit is holding the desired temperature.

6. Refer to the front of this manual for serial number location. Please record this information in your manual on page 3 now. It will be necessary when ordering replacement parts or requesting warranty service.

7. Before putting in food, allow your unit to operate for approximately (1) hour so that interior of the unit is cooled down to storage temperature.

NOTE: All motors are oiled and sealed.
NOTE: FAILURE TO FOLLOW INSTALLATION GUIDELINES AND RECOMMENDATIONS MAY VOID THE WARRANTY ON YOUR UNIT
ELECTRICAL SUPPLY: Any wiring should be done by a qualified electrician in accordance with local electrical codes. A properly wired and grounded outlet will assure proper operation. Please consult the data tag attached to the compressor to ascertain the correct electrical requirements. Supply voltage and amperage requirements are located on the serial number tag located inside the mechanical housing.
NOTE: It is important that a voltage reading be made at the compressor motor electrical connections, while the unit is in operation to verify the correct voltage required by the compressor is being supplied. Low or high voltage can detrimentally affect operation and thereby void its warranty.
NOTE: it is important that your unit has its own dedicated line. Condensing units are designed to operate with a voltage fluctuation of plus or minus 10% of the voltage indicated on the unit data tag. Burn out of a condensing unit due to exceeding voltage limits will void the warranty.

Unit Operation

When the door is open, the air curtain design directs cold ais across the cabinet opening, keeping the ambient air out and cold air in the cabinet for approximately 45 minutes. The unit will maintain 45°F box temperature at 70°F ambient with the door open, quickly returning to normal refrigerated temperatures of 36°F with the door closed. This unit is capable of maintaining 40°F or below at 100°F ambient with the door closed.
When loading product in the cabinet allow enough space for proper air flow circulation. When operating with the door open, keep install trays on all the shelf brackets and pushed in all the way to prevent disruption of the air flow.
Open the door completely and latch to the side of the cabinet body while loading and unloading.
The power switch should be turned off and the power cord disconnected whenever performing maintenance functions or cleaning the interior of the refrigerated cabinet.
AMBIENT CONDITIONS
1. This unit is designed for operation in a room ambient of 70°F and 55% relative humidity or less. It should never be used outside or located in direct sunlight.
Randell has attempted to preset the temperature control to ensure that your unit runs at an optimum temperature, but due to varying ambient conditions, including elevation, food type and your type of operation, you may need to alter this temperature.
Your Air Curtain Refrigerator Series Unit is equipped with an electronic temperature control.
Before making temperature adjustments:
A. Make sure that you are allowing adequate time for the cabinet temperature to equalize. When initially started or when first loaded, it can take a long time for temperatures in the display area to stabilize.
B. Make sure that unit operation is not being effected by room ambient conditions. (See Ambient Conditions section above). If there are any significant ambient issues, adjusting the temperature setting may not help.
To raise temperature:
A. Push and hold the “SET” button until set point 33 appears then release the “SET” button. 33 is the current set point temperature.
B. Push and release the up arrow 2 times until 35 is displayed. Push and release the “SET” button one time. The new set point, 35, will flash 3 times and then will be locked in.
To lower temperature:
A. Push and hold the “SET” button until 33 appears and then release the “SET” button. 33 is the current set point temperature.
B. Push and release the up arrow 1 time until 32 is displayed. Push and release the “SET” button one time. The new set point, 32, will flash 3 times and then will be locked in.

Control Settings

Randell Control Settings by Randell
Model Number| 2127AC|
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Product Line| Air Curtain
X RO2CX| 2127AC
Randell Purchased Part # (brought in un-programmed)| RF CNT0501
Randell Programmed Part # RP CNTxxx I(model specific)| RP CNT1401
|
Modifications (Shown in RED)|
Code| Locked| No| Code
Set| Thermostat set point| 36| Set
HY| Thermostat Differential (hysterisis)| 4| HY
LS| Lower Set Point| 33| LS
US| Upper Set Point| 42| US
ot| Offset Room Temp| 0| ot
P2| 2nd Probe Present| y| P2
oE| Evaporator Probe Calibration| 0| oE
od| Output de lay @ Startup| 0| od
AC| Anti-Cycle Time (min off after cycle)| 1| AC
Cy| Compressor ON time (probe failure)| 6| Cy
Cn| Compressor OFF (probe failure)| 15| Cn
CF| °C /°F| F| CF
rE| Resolution 0.0°C (only °C)| in| rE
Ld| Probe Displayed (P1 or P2)| P1| Ld
dy| Display Temperature Delay| 0| dy
dE| Defrost Termination Temp| 42| dE
Id| Interval between Defrosts| 8| Id
nd| (Maximum) length of Defrost| 25| nd
dF| Display during Defrost| it| dF
AU| Alarm Upper (max alarm)| 70| AU
AL| Alarm Lower (minimum alarm)| 25| AL
Ad| Alarm Delay (min)| 60| Ad
dA| Alarm Delay at startup (hrs/.10min)| 60| dA
d2| Evaporator probe display d2
Pt| Parmeter code table| | Pt
rL| Filmware Release| | rL
bold = hidden Para meters|

DIXELL CONTROL SETTING INSTRUCTIONS
HOW TO CHANGE A PARAMETER VALUE
To change the parameter’s values operate as follows:

1.  – Enter the Programming mode by pressing the Set and Down Arrow for 3 seconds (the defrost and water drops symbol will start blinking)
2. – Select the required parameter.
3. – Press the “SET” key to display its value. (Now only the defrost symbol is blinking).
4. – Use up or down arrow to change its value.
5. – Press “SET” to store the new value and move to the following parameter.

To Exit: Press SET + up arrow or wait 15 seconds without pressing a key.
THE HIDDEN MENU
The hidden menu includes all the parameter of the instrument.

HOW TO ENTER THE HIDDEN MENU

1. – Enter the Programming mode by pressing the set + down arrow key for 3 seconds (the defrost and water drops symbol will start blinking)
2. – When a parameter is displayed; keep pressed the Set + down arrows for more than 7 seconds. The Pr2 label will be displayed immediately followed from the HY parameter. NOW YOU ARE IN THE HIDDEN MENU.
3. – Select the required parameter.
4. – Press the “SET” key to display its value (Now only the defrost symbol LED is blinking).
5. – Use up or down arrow to change its value.
6. – Press “SET” to store the new value and move to the following parameter.

HOW TO LOCK THE KEYBOARD

1. – Keep pressed for more than 3 seconds the up and down arrow keys.
2. – The “POF” message will be displayed and the keyboard will be locked. At this point it will be possible only to see the set point or the MAX or Min temperature stored.
3. – If a key is pressed more than 3 seconds the “POF” message will be displayed.

TO UNLOCK THE KEYBOARD

1. – Keep pressed together for more than 3 seconds the up and down arrow keys till the “POn” message will be displayed.

Preventive Maintenance

Randell strongly suggests a preventive maintenance program which would include the following Monthly procedures:

1. Cleaning of all condenser coils. Condenser coils are a critical component in the life of the compressor and must remain clean to assure proper air flow and heat transfer. Failure to maintain this heat transfer will affect unit performance and eventually destroy the compressor. Clean the condenser coils with coil cleaner and/or a vacuum, cleaner and brush.
   NOTE: Brush coil in direction of fins, normally vertically as to not damage or restrict air from passing through condenser.

2. Clean fan blade on the condensing unit.

3. Clean and disinfect drains with a solution of warm water and bleach.

4. Clean and disinfect drain lines and evaporator pan with a solution of warm water and bleach.

5. Clean all gaskets on a weekly if not daily basis with a solution of warm water and a mild detergent to extend gasket life.

6. Lubricate door hinges with lithium grease.

NOTE: DO NOT USE SHARP UTENSILS.
RECOMMENDED CLEANERS FOR YOUR STAINLESS STEEL INCLUDE THE FOLLOWING:

cloth
Fingerprints and smears| Arcal 20, Lac-O-Nu, Ecoshine| Provides a barrier film
Stubborn stains and discoloration| Cameo, Talc, Zud, First Impression| Rub in the direction of the polish lines
Greasy and fatty acids, blood, burnt-on foods| Easy-Off, Degrease It, Oven Aid| Excellent removal on all finishes
Grease and Oil| Any good commercial detergent| Apply with a sponge or cloth
Restoration/Preservation| Benefit, Super Sheen| Good idea monthly

Reference: Nickel Development Institute, Diversey Lever, Savin, Ecolab, NAFEM.
NOTE: Do not use steel pads, wire brushes, scrapers, or chloride cleaners to clean your stainless steel. CAUTION: DO NOT USE ABRASIVE CLEANING SOLVENTS, AND NEVER USE HYDROCHLORIC ACID (MURIATIC ACID) ON STAINLESS STEEL.
NOTE: Do not pressure wash equipment as damage to electrical components may result.
Proper maintenance of equipment is the ultimate necessity in preventing costly repairs. By evaluating each unit on a regular schedule, you can often catch and repair minor problems before they completely disable the unit and become burdensome on your entire operation.
For more information on preventive maintenance, consult your local service company or CFESA member. Most repair companies offer this service at very reasonable rates to allow you the time you need to run your business along with the peace of mind that all your equipment will last throughout its expected life. These services often offer guarantees as well as the flexibility in scheduling or maintenance for your convenience.
For a complete listing of current Randell ASA please visit www.unifiedbrands.net
Randell believes strongly in the products it manufactures and backs those products with one of the best warranties in the industry. We believe with the proper maintenance and use, you will realize a profitable return on your investment and years of satisfied service.

Electrical Diagram

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Trouble Shooting Guide

2.Power switch in OFF position
3.Temperature control turned off
4.Temperature control faulty
5.Compressor overheated
6.Condenser fan faulty
7.Overload protector faulty
8.Compressor relay faulty
9.Drawer switch not engaged
10.Compressor faulty| 1.Plug in unit
2.Switch power switch to ON
3.Check temperature control
4.Test temperature control
5.Clean condenser coil
6.Service condenser fan
7.Test overload
8.Test relay
9.Test drawer switch
10 Call for service at 800-621-8560
Unit short cycles| 1.Condenser coil dirty
2.Condenser fan faulty
3.Compressor faulty
4.Overload repeatedly tripping| 1.Clean coil
2.Service fan and motor.
3.Call for service at 800-621-8560
4.Check outlet voltage
Unit runs constantly| 1.Condenser coil dirty
2.Condenser fan faulty
3.Room ambient too high
4.Room humidity too high| 1.Clean coil
2.Service condenser motor
3.Reduce room temp to 75F
4.Set room lower
Unit not cold enough| 1.Temp control set too high
2.Temperature control faulty
3.Condenser coil dirty
4.Refrigerant leaking or contaminated
5.Room ambient too high
6.Room humidity too high
7.Display area is over-filled| 1.Adjust control to lower setting
2.Test control
3.Clean coil
4.Call for service at 800-621-8560
5.Reduce room temp to 75F
6.Set room lower
7. Remove items to load level To 2″ below sides and front
Unit too cold| 1.Temperature control set too low
2.Temperature control faulty| 1.Adjust control to raise setting
2.Test control
Unit noisy| 1.Compressor mountings loose or hardened.
2.Condenser fan damaged or hitting fan shroud| 1.Tighten or replace compressor mountings
2.Inspect condenser fan

Replacement Parts
Call factory for replacement parts.
800-621-8560
Randell Service and Parts Hotline

randellfx.com
unified brands
888-994-7636, fax 888-864-7636
unifiedbrands.net
PP MNL1501

References

• Unified Brands » Re-imagining Food Preparation
• Unified Brands » Re-imagining Food Preparation
• Unified Brands » Re-imagining Food Preparation

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