Continental Scientific Refrigerators and Freezers manual

Operation, Installation and Instruction Manual for Reach-In Refrigerators and Freezers Cont inental Scient ific A Division of National Refrigeration & Air Conditioning Products, Inc. 539 Dunksferry Road · Bensalem, PA 19020-5908 215-244-1400 · 1-800-523-7138 · Fax: 215-244-9579[...]

Operators Manual Table of Contents Page RECEIVING YOUR NEW M ODEL........................................................................ 1 GENERAL INFORMATION AND IMPORTANT OPERAT ING FACTS ................. 1 UNCRATING YOUR NE W MODEL ...................................................................... 2 INSTALLATION AND LOCAT ION .............[...]

TROUBLESHOOTING AND SER VICING GUIDE .............................................. 22 W IRING DIAGRAMS .......................................................................................... 26[...]

RECEIVING YOUR NEW M ODEL Congratul ations on your r ecent purchase of Continental Scienti fic superior laboratory /pharmacy equipment products! W hen your shipment ar riv es, please thoroughly ex amine the shipping crate for any punctures, dents, or sig ns of roug h handling. It i s in y our best inter est to partiall y remov e or open the shippin[...]

and sanitation, all models are li sted under the reexami nation ser vi ce of underw riter's l aboratories. UNCRA TING YOUR NEW MO DEL The shipping container shoul d remain on y our model as pr otection against dents or scratches whil e transporting it to the actual set- up location. Remov e the shipping container only at the last possible mome[...]

efficiency. Important Note: To assure suf ficient air supply and circulation to the condensing unit, a minimum clearance of 12" above th e grill and 3" on each side and back of the cabinet must be prov ided (see figure 1) . If necessary, special v enting or air supply ducts must be installed by the instal ler for this purpose. Do not at a[...]

approxi m ately 700 pounds of product ( 35 x 20) and assuming the refriger ator itself weig hs 300 pounds, the total combined wei ght of cabinet and product is approxi m ately 1000 pounds. Therefore, the floor in this ex ample must be capable of supporting up to 1000 pounds. INSTA LLING LEGS A ND LEVELING REA CH-IN M ODELS Your new reach-in model i[...]

Your roll -in model comes with one cart r amp per door opening . T o install the ramp(s), simply open the cabinet door and positi on the ramp slots onto the screw s located along the cabi net bottom f ront. If the door wiper rubs along the ramp to the extreme where the door w ill not self -close , you will need to adjust the door (see "door ad[...]

FIGURE 3 CA STERS MUST BE TIGHT TO CA BINE T BOTTOM INSTA LLI NG CONDENSA TE EVAPORA TOR No floor drains or plumbing connecti ons are req uired since al l models use an automatic condensate w ater ev aporating system. All models are supplied wi th an electric condensate evaporator pan and mounting bracket packed in the accessor y carton. To install[...]

FIGURE 4 CONDENSA TE EVA PORA TOR INS TA LLATION REMO VA L OF DOORS A ND DOOR A DJUSTM ENT During installation, it may become necessary to remove the cabi net doors to facilitate passage through narrow doorways or hallw ays. To remove a door, pry off all hing e covers using a shar p tool or knife (see fig ure 5). Sw ing the door to the open-door po[...]

FIGURE 5 DOOR A DJUSTME NT A ND REMOV A L REMO VA L OF GRILL To remove the grill, loosen all four (4) grill mounting screw s located on the backside of the grill one or two turns. Simply lift grill up off of its mo unting screw s and out. To replace the grill, line up the gr ill m ounting screws w ith the keyhole slots located on the cabinet body, [...]

cleaning may result in a streaking or staining of the metal. Complete cleaning procedur es and precautions are l isted in the "per iodic cleani ng procedure" under the mai ntenance section. STA RT-UP PROCEDURE ELECTRICA L CONNECTI ONS To insure proper oper ation, your new model must be connected to an i ndivi dual circuit that can suppl y[...]

the condensing unit is 208- 230 volts i n which the wi ring includes a neutral and a mechanical ground. This w iring should be connected to the appropr iate power source by a q ualified electrician and must conform to all local electr ical codes. SPECIA L VOLTA GE CONNECTIONS W hen models are ordered from the factory w ith special, optional v oltag[...]

condensing unit, and electrical hook-up should be per f ormed by q ualified refriger ation personnel of a competent refrigeration company only. OPERA TION All cabinets must be g iven sufficient time to reach normal operating temper ature before placing any product inside. Refriger ators are desig ned to maintain an ideal cabinet temperature of 3.3`[...]

and turn the needle to the desired temperature usi ng y our finger s. Replace the lens cover and recheck the calibrati on. DIGITAL THERMOMETER For a digital thermometer, note how many degrees the digital display needs to be increased or decreased. Pr ess twice directly on the myl ar display towards the rig ht center using y our finger. After pressi[...]

FIGURE 6 THERMOMETER CA LIBRATION REFRIGERA TOR SYSTEM A ND ADJUSTMENT All self-contai ned refriger ators are desi gned and factory set to maintain an aver age cabinet temperature of 4`c. The temperatur e control is accessible f rom the top of the electrica l console bo x located on the cabinet to p behind the fron t grill (see figure 6). If an adj[...]

compressor is not oper ating dur ing an off-cycle. Do not set the thermostat too cold where the cabine t tem perature will f all below 2`c becau se the evapo rator will becom e b locked by ice since th e comp ressor of f -cycle will be considerably shortened. This will result in loss of produc t stored within the cabinet and require servi ce to def[...]

cabinet temperature. On l ow- temperature freez ers, place a screw driv er into the right ther mostat adjustment screw ( do not turn the left di fferent ial adjustment screw) and turn clockwise for a colder cabinet temperatur e or counterclockwise for a warmer cabinet temperature. Fur ther adjustments out of the factory desig n temperature rang e m[...]

FIGURE 8 DEFROST TIMER SETTING EVA PORATOR A SSEMBLY All refrig erators and freezers have an easi ly accessible, easily serviceabl e, performance rated, f orced-air evaporator assembly w hich utilizes a plasticiz ed fin coil for ex tended life (see figur e 9). LOW-PROFILE, CEILIN G-MOUNT EVAPORATOR ASSEMBLY The low-pr of ile evapor ator system is c[...]

FIGURE 9 LOW-PROFILE,CEILING- MOUNT EVA PORA TOR A SSEMBLY INTERIOR REA CH-IN A CCESSORIES The standard interior accessory packag e that is supplied from the f actory wi th y o ur reach-in r efrigerator or freezer consi sts of standard pil aster str ips w ith pilaster clips (four (4)clips per shelf), three ( 3 ) epoxy coated shelves per section, an[...]

the shelf on the clips as show n in figure 10. The standard pil aster and clip ar e shown i n figure 10, and the optional heavy -duty pilaster and clip are shown in figure 11. Important Note: W hen loading shel ves with product, al low space between row s of product for proper air ci rculation, and do not load pr oduct to block back wall (leave at [...]

FIGURE 11 OPTIONA L HEA VY-DUTY PILA STER FIGURE 12 OPTIONA L A NGLE PA N SLIDES SA FETY PRECA UTIONS The following saf ety precautions shoul d be followed when operati ng any appliances: ¬ Alway s disconnect the power cor d before attempting to w ork on or clean - 19 -[...]

any eq uipment. ¬ Disconnect the power cord w hen the appliance will be idled for a long period of time. ¬ Do not attempt to serv ice this unit yourself as remov ing any cover s may cause exposure to dang erous voltage. ¬ Alway s route the power cor d so that it is not l ikely to be walked on or pinched by other appliances. Nev er use extension [...]

contact with stai nless steel. 3. Tincture of iodine, or iron shoul d not come in contact with stainless steel. These solutions, whic h cause stainless steel to di scolor, should be ri nsed off immediately if contact occurs. 4. Gritty, hard abrasives will mar the f inish of stainless steel an d alumin um and are not recommended. SLIDING A ND HINGED[...]

this cleaning process. Af ter cleaning , restore electrical ser vic e to your model . PA RTS AND SERVICE Al w a ys provide the cabi net model and serial number (l ocated on the data plate on the inside ri ght w all of the cabinet) w henever contacting the factory or your dealer regardi ng questi ons or when ordering parts. M O D E L # SERIA L # ___[...]

PROBLEM PROBABLE CA USE CORRECTION Condensing unit will not start - no hum. 1.LINE DISCONNECTED, SW ITCH OPEN. 2.FUSE REMOVED OR BLOW N. 3.OVERLOAD PROTECTOR BLOW N. 4.CONTROL "OFF" DUE TO COLD LOCATION. 5.CONTROL STUCK IN OPEN POSITION. 6.W I RING IMPROPER OR LOOSE. 1.CLOSE START OR DISCONNECT SW ITCH. 2.REPLACE FUSE. 3.DETERM INE REASON[...]

PROBLEM PROBABLE CA USE CORRECTION Condensing uni t runs, but short cycl es on: 1.OVERLOAD PROTECTOR. 2.THERM OSTAT. 3.HIGH PRESSURE CUT-OUT DUE TO: (a) INSUFFICIENT AIR SUPPLY. (b) OVERCHARGE. (c) AIR IN SYSTEM . 4.LOW PRESSURE CUT-OUT DUE TO: (a) VALVE LEAK. (b) UNDERCHARGE. (c) RESTRICTION IN EXPANSION DEVICE. 1.SEE PROBLEM # 3. 2.DIFFERENTIAL M[...]

PROBLEM PROBABLE CA USE CORRECTION Product zone temperature too hig h. 1.CONTROL SETTING TOO HIGH. 2.INADEQUATE AIR CIRCULATION. 3.DIRTY CONDENSER 1.ADJUST T-ST AT 2.REARRANGE PRODUCT LOAD TO IMPROVE AIR CIRCULATION. 3.CLEAN CONDENSER COIL Suction line frosted or sweating . 1.OVERCHARGE OF REFRIGERANT. 2.EVAPORATOR FAN NOT RUNNING. 3.EXPANSION VALV[...]

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