Installation & Service Manual
Contents
1. G 31 TYLER Warranty 2 G 32 Revision LOG a BG PAKA KB hat ee eee G 33 Page G 2 April 2007 Installation amp Service Manual SPECIFICATION CAUTION Exposure to direct sunlight in over 80 F ambient temperatures can cause permanent damage to the vinyl materials If expo sure to direct sunlight is anticipated loosely cover the cases with white canvas or plas tic This blocks direct sunlight and allows air movement over vinyl parts TYLER will not be held responsible for damage due to improper storage Line Sizing Requirements CAUTION Low temperature suction lines and all liquid lines must be insulated in all applications where subcooling NC is used This prevents line damage and pos sible product damage caused by freezing NOTE Liquid and suction line lengths over 300 equivalent feet are discouraged by TYLER Contact applications engineering for rec ommendations on applications exceeding 300 equivalent feet HORIZONTAL SUCTION LINES SHOULD SLOPE 1 2 PER 10 TOWARD THE COMPRESSOR TO AID IN GOOD OIL RETURN Suction Line Sizing The line sizing charts on each case specifica tion sheet shown above can be used to size the sub feed branch lines When the line serves one case select the size specified for the 6 8 or 12 case This may be as small as 5 8 example service meat cases or as large as 1 3 8 example multi shelf ice cream cases Select each suceeding2. ih nla Ng Ea oa D cb ci atv ao mo 4 e 6b ES ES au AA am e L229 a LG KIN HIN Hi SY aa e o 4 a e o ee pol i Shelf Light Sockets Both types of shelf light plug sockets allow for shelf positioning One shelf light socket is ver tically adjustable It moves up or down to clear back edge of shelf for electrical connection Remove top screw stop to completely remove this shelf light socket assembly The second shelf light socket is stationary but allows the plug to be installed right side up or upside down to accommeodate the shelf posi tion Remove top and bottom retainer pins to remove the second shelf light socket assembly CAUTION Make sure the shelf light plugs or receptacle covers are completely inserted into the light socket receptacles This prevents electrical arcing and or possible equipment damage Shelving Loads Case shelves are designed to hold approx 40 Ibs per sq ft NOTE Slots in the shelf brack ets engage in the back of the shelves when the brackets are in a down position This provides additional shelf support Shelf Load Chart Shelf Shelf Area Maximum Size in Sq Ft Shelf Load 12 x 48 4 160 15 X 48 5 200 18 X 48 6 240 20 X 48 6 7 268 22 X 48 7 3 292 Page G 25 GENERAL UL NSF SERVICE INSTRUCTIONS Preventive Maintenance 1 Set up a routine cleaning program as outlined in this manual Make s
3. October 2004 GENERAL UL NSF 3 Install metal kickplate 4 onto kickplate supports 1 or 2 and secure with screws 4 Install kickplate joint trim 6 over each metal kickplate joint in the lineup and secure with screws 5 Install the lower end closeoff 7 between bottom of patch end and case base rail and secure with screws The flanged end of the closeoff 7 should cover the end of the metal kickplate 4 6 Seal bottom edge of lower end closeoff 7 to floor using Dow Corning 732 737 999A or equivalent NSF silicone adhesive not supplied NOTE Sealing base rails and end closeoffs will keep floor spills from running under case lineups Page G 13 GENERAL UL NSF Front Rear and End Closeoff Installation High Base Models with Legs NOTE Closeoffs should not be installed until all case piping and electrical hook ups are complete Both the front and rear closeoff assemblies install the same way 1 Position front or rear closeoff assembly 1 or 2 so bottom edge is flush with the floor Push in closeoff assembly 1 or 2 at each case leg locations until the close off brackets 3 snaps onto each leg 4 2 Install the end closeoff 5 between bottom of patch end and case frame The flanged end of the end closeoff 5 should cover both the ends of the front and rear closeoff assemblies 1 amp 2 Page G 14 TYLER REFRIGERATION Plumbing Procedures Recommended Drain P
4. 2 Apply sealer to horizontal joint trim 4 and install joint trim 4 on the horizontal joint 1 remaining space between the adjoining hand rail bumper retainers 1 NOTE Color band backers on glass front cases are installed by sliding the band toward open end inserting the backer at the case joint and sliding the band back over the backer Installation of backer at last joint in a line up requires bumper and bumper retainer removal on the end case Front Glass Trim Installation The following instructions can be used to install the front glass trim on cases with 6 or 12 front glass October 2004 Page G 11 TYLER GENERAL UL NSF REFRIGERATION Raceway Cover Installation NOTE Raceway covers are shipped loose They should not be installed until all case piping and electrical hook ups are complete 3 To adjust a bumper backer 4 remove bottom of both bumpers 2 at the joint reposition the bumper backer 4 behind the joint snap bumpers 2 back in place Make sure color band backer is centered behind any exposed color band joints 1 Position top of raceway cover 1 in bottom of lower cladding 2 2 Center the raceway backer 3 behind joint of adjoining raceway covers 1 3 Rotate raceway cover 1 down and position retainer plates 4 with screws 5 Slide all raceway covers 1 toward center of case line up then tighten retainer plate screws 5 4 After all bump
5. 220 65 6 1 8 91 12 12 145 158 183 204 224 242 October 2004 Page G 5 GENERAL UL NSF TYLER REFRIGERATION PRE INSTALLATION RESPONSIBILITIES Shipping Inspections Shipping Damage All equipment should be thoroughly examined for shipping damage before and during unloading This equipment has been carefully inspected at our factory and the carrier has assumed responsibility for the safe arrival of our prod uct If damage is concealed or apparent a claim must be made to the carrier Apparent Loss or Damage Obvious loss or damage must be noted immediately on the freight bill or express receipt and signed by the carrier s agent If this is not done the carrier may refuse the claim The carrier will supply the necessary claim forms Concealed Loss or Damage When the loss or damage is not apparent until after the equipment has been uncrated a claim for concealed damage must be filed Upon discovering the damage make request in writing to the carrier for inspection within 15 days and retain all packing The carrier will supply the inspection report and required claim forms Application Recommendations These cases are designed and built to be used in properly air conditioned stores that maintain a store temperature at or below 75F dry bulb and a 55 relative humidity These cases may not operate satisfactorily at higher temperature and humidity conditions Temperature performance is imp
6. Adjustments should be made with liquid pressures near design and after the case has been loaded and pulled down to normal temperature requirements Final adjustments are used to maximize case temperature and efficiency There is no magic superheat number Proper settings can actually occur from as low as 4 or 5 F up to extremes of 17 or 18 F of superheat Most settings will fall in the 6 to 12 F range All high performance case settings should fall in the 4 to 6 F range A proper method is to find a setting within the ranges previously mentioned that provides the most stable bulb temperature Sometimes there will be a flat reading with vir tually no variation This usually provides the lowest discharge air temperature reading Proper expansion valve settings cannot be made in a few minutes Only turns of 1 4 to 1 2 should be made at one time Wait 15 minutes to allow the system to settle out Please refer to comments below regarding the differences in adjustment between Sporlan and Alco expansion valves Page G 17 REFRIGERATION TYLER NOTE All of the following changes are approximate and should only be used as a guideline CAUTION Pend ee aya Forcing the adjustment beyond the stops will result in damage to the valve GENERAL UL NSF Bela ojei miwioinjoo o t N ol Ey PG PAT Pd ale Na bad Te Ko ING oo o Be NIN BIBlo P A S SISIVISISIS ed Pe Ds v Pad g nad a pi pr ised bazd lagd kezd O
7. Most TYLER cases provide the following case cleaning features to support good cleaning and sanitation practices e Removable screens lower trays and front amp rear ducts e Fully accessible 1 1 2 or 2 waste outlets on most cases e Hinged or easily removable fan panels and coil amp piping covers provide access to lower coil and drain pan e Seamless smooth drain pan is water proof and contoured for easy cleaning and rapid drainage e Cases with pipe legs have removable front and rear closeoffs to provide access to area under cases for easy cleaning e Cases with base rails provide front or side access for cleaning areas under cases with dust mop or vacuum hose with nozzle See page G 13 in this manual for resealing of lower end close offs Since cases are made up of different types of materials the care requirements change with the material type and style CAUTION e Never use abrasive scouring pads or cleansers on exterior or interior surfaces The abrasive materials could scratch the surfaces e Do not use any ammonia based cleaning products on any cases with electronic and solid state components The ammonia will permanently damage these components April 2007 GENERAL UL NSF e Do not use liquid chlorine bleach or products containing bleach on metal surfaces The corrosiveness of these products will damage the metal and void the case warranty Metal surfaces that are powder coated should
8. attention to the following items 1 Has the refrigerant line entry been caulked thoroughly 2 Are all fans running Are the fan electrical connections tight NOTE Proper settings and or temperatures for items 3 4 and 5 can be found in the Model Specification Sheets in the case specific I amp S manual or the BUFF section in the Specification Guide 3 Is the defrost control set for correct number of defrosts per day 4 Is the failsafe set for the proper times 5 Does the discharge air temperature match the recommended temperature for this case 6 Is the suction pressure drop less than 2 PSIG from the last case to the compressor Remote case only 7 Are the expansion valve feeler bulbs securely attached to the suction lines 8 After final hook up of the case let it run through a defrost cycle preferably two or more Check the duration and frequency of the defrost cycle for compliance to specification data 9 Check the operating temperature to be sure the case is functioning within the recommended guidelines 10 Verify that the store temperature and humidity levels are within the recom mended guidelines Use a wet and dry bulb psychrometer to check the store Page G 22 TYLER REFRIGERATION temperature Check for outside influences that might affect the case performance Example Drafts from ventilator openings or radiant heat from light fixtures that are too close Use of Ca
9. electrical power from wire ends could damage other components and or cause personal injury or death 1 Disconnect and or loosen canopy light channel 1 until it hangs down enough to provide access to the light ballasts 2 NOTE Mark wires before removing to assure proper installation 2 Disconnect wires 3 to defective ballast 2 3 Remove mounting screws and defective ballast 2 from light channel 1 or mounting bracket 4 4 Install new ballast 2 on light channel 1 or in mounting bracket 4 and secure with mounting screws 5 Connect wires 3 to new ballast 2 in same position as they were removed October 2004 GENERAL UL NSF CAUTION Make sure all wiring is tucked out of the way to prevent pinching and or wire damage during light fixture installation 6 Secure canopy light channel 1 in top of case 7 Reconnect or turn on the power supply to the case Fan Blade and Motor Replacement WARNING Shut off or disconnect power supply to case before servicing a fan Automatic cycling of fan or electrical power to wire ends could cause personal injury and or death 3 ji SSS AG 7 8 Fan Blade Replacement 1 Remove bottom tray s 1 from case 2 2 To replace fan blade 3 remove spring clip 4 and fan blade 3 from fan motor shaft 5 Discard spring clip 3 Install new fan blade 3 on fan motor shaft 5 and secure with n
10. heavy and require two or more people to move position and or install them e Do not walk on the tops of these cases Tops of cases are not designed to support the weight of a human being Improper handling of these cases could result in personal injury NOTE Allow at least 3 of air space between the back of these cases and store walls or other cases to minimize possible condensation problems Forced ventilation might be necessary in some situations 1 Snap chalk lines where the front and rear legs and or base rails of the cases are to be located for the entire line up Page G 7 GENERAL UL NSF NOTE Front and rear edges of legs and or base rails should always be used to line up cases Cases with legs have built in level ing adjustment capabilities Cases with base rails use 6 shims that allow adjoin ing ends of cases to be shimmed together 2 Cases with legs are shipped on pallets with the legs in an attached shipping package Position case approximately where it is going to be installed Carefully lift case off skid with a proper lifting device and install legs into the threaded holes in the base Make sure all legs are completely threaded into the base to properly secure them Thread out bottom leg insert up to 1 1 2 to level the case If case has base rails locate highest point on chalk lines as a reference for determining the number of shims to be placed under the case base rails Po
11. initiated fan operation is reversed This causes the fans to circulate store air in place of refrigerated air supply A klixon 427 32 is located on the right end of the coil When all cases on that circuit have reached 42 F the defrost will be terminated and the fans will switch back The purpose of the following arrangements is to stop the flow of refrigerant through the display so that it may defrost Single Condensing Unit Liquid flow may be interrupted by a normally closed liquid line solenoid valve installed at the compressor or case controlled by a thermostat and wired to the time clock The time clock would cause the solenoid to close this would in turn shut off the flow of liquid refrigerant to the system s The compressor April 2007 Installation amp Service Manual would continue to run and pump down the system s The condensing unit would soon shut off on low pressure The time clock may also be wired directly to the compressor contactor Parallel Compressor Unit For cases operated from a parallel compressor rack an evaporator pressure regulator EPR valve may be factory installed on the suction stub of the parallel compressor rack The EPR valve will work in conjunction with the defrost circuit s This is temperature regulation by pressure of the entire lineup A solenoid may be used in conjunction with the EPR valve to stop refrigerant flow during defrost Installation Procedure Check Lists C
12. internal parts so that they seat properly This is necessary for proper case operation WARNING Never turn case electrical power on until all components are dry Reconnecting power to case with wet components could cause damage the case or personal injury 9 Restart refrigeration supply to the case s and electrical power to the case electrical circuits 10 Replace product after the case has reached the proper operating temperature High Pressure Cleaning If a high pressure cleaner is used for case cleaning the following cleaning precautions must be taken to discreetly flush the case WARNING Wear safety goggles while using high pressure equipment This equipment is designed to operate at 500 psi pressure High pressure water and or flying objects April 2007 Installation amp Service Manual could cause eye or other bodily injuries e Remove all loose and removable electrical components before using high pressure equipment e Do not use water over 160 F Water too hot will cook soil into place and obscure the worker s visability e Do not misuse high pressure spray equipment by directing spray on any electrical equipment such as fan motors and light sockets e Do not direct high pressure spray at case joints or glass joints The seals may not hold up to the high pressure GENERAL INFORMATION Proper Case Usage Display Practices Do not let a flair for spectacular exceed the refrigerating capacity of th
13. KK Carrier A United Technologies Company TYLER REFRIGERATION Piping Miitaoe Installation 2 Service Manual 40 FRESH 10 2 GENERAL UL NSF This manual has been designed to be used in conjunction with a Case Specific Installation amp Service Manual Save the Instructions in Both Manuals for Future Reference This merchandiser conforms to the UL Underwriter s Laboratory American National Standard Institute amp NSF International Health and Sanitation standard ANSI NSF 7 2003 TYLER merchandisers and or components are patented PRINTED IN Specifications subject to REPLACES ISSUE PART IN U S A change without notice EDITION 10 04 DATE 4 07 NO 9043544 REV C 1 Tyler Refrigeration Niles Michigan 49120 TYLER GENERAL UL NSF REFRIGERATION CONTENTS Page Specifications Line Sizing Requirements 0 000 c eee eee eee G 3 Gas Defrost Liquid Lines 0 a G 4 Pre installation Responsibilites Shipping Inspections a G 6 UL amp ANSI NSF Approval 0 2 2220 eee G 6 Pre Installation Check List 0 0 0 cee G 7 Installation Procedures Carpentry Procedures 0 0 0 cece eee G 7 Case Line Up G 7 Trim Installation Alignment and Case Sealing G 10 Plumbing Procedures 0 ccc cee eee eee eee G 14 Recommended Drain Practices nanan aaa
14. O ico N Kor Koe Keo Land Kael Cae islofo alnlaIinNlolojo r o ololo ol olNinilo ololp 5 mba E i a bea o ito RIIN EA Eet ted a aita e tio Ol ole sir a ale kad P1 pari Pr NININININININ JO 0 9 5H 95 9 9 Oolol clee FO o bk bb ly alsiclolalelelclelelelatelalalsislelslcla s DO lalo O NIO Y pang kang Ad pad Kg PA f2 5 i H S N N NINIS titio 2 jeje zH ple alalalala NININININ Siale Iola E la s eeieleleletelelelelsajeiejele 5 qtio c iM lajloalolalalolan lelo olol OS EJ EJ 7 a fafa ka EN ENI ka a ONIN sad i Bed bt Z ic TININININ NININ B F S ISINIBIS ye fae Pl bo a alainja Co to Foe Po To slol lola OO 00 Ng pg Fr ng sad Psy lols mj o SIRIRIN NINININIXIN Queslesloales DIOINI oOlaololwlo T N N N N NN 9 0 x B iim celele a IN bag pa PA AE ua ba fe Nola STIN Ten olclalals op aed Fa Bs Pd pe slalclelalelalsialeiaiaisial SISISICICISI12 NIAJ ay tray Pra Pra pony Ea Ig pa a pil A SG KONO KOKO Ka ppa baal at Kat bsa bac Bd bed Bi ESL SOLON O NN 00 10 clee s isj5 sja alelalal3 35 e5 Sjoel es paa Pd a oo Fon ba ee ee ee bami ce ee ee band bami bam vojaj ba hal ee 919 9 9 9 9 9 9 9 9 Ca aag pagi ad hod pad k02 rel sp Pe pg pg pac Par ba ba LAN ON Ged Kzl GZA bad t0 ejeje ald led Kel ar aie hd e ANAL Pa peg na Pe N B 5 SIS PIGIO CINIRIS S DbIS a N O to N DIOINI t Olaololn N OIN elo al N Slalalole AJ Ka KI KI HAIR O MINININ H a bel Pepe pel pa a 8 TON lO
15. R OTHER EXPENSES INCURRED IN THE REMOVAL AND OR INSTALLATION OF DEFECTIVE PARTS OR EQUIPMENT TYLER neither assumes nor authorizes any person to assume for it any other obligation or liability in connection with said equipment or any part thereof INADDITION TO THE FOREGOING THIS WARRANTY SHALL NOT APPLY 1 To the Condensing Unit used with said Equipment unless same was furnished by TYLER 2 When this Equipment or any part thereof is subjected to accident alteration abuse misuse tampering operation on low or improper voltages or is put to a use other than normally recommended by TYLER 3 To any product or part which shall have been repaired altered or assembled in any way by other than TYLER TYLER S supplier or TYLER S installation contractor which in the sole judgment of TYLER affects the performance stability or purpose for which it was manufactured 4 When this Equipment or any part thereof is damaged by transportation fire flood act of God or when the original model and serial number plate has been altered defaced or removed When operation of this equipment is impaired due to improper drain installation To any product or parts sold on an AS IS basis Toward payment of any removal or installation charges of warranted parts When this Warranty Certificate has been altered in any way This Warranty is made to the original purchaser only and is not transferable COND This One Year Warranty shall apply only wi
16. anti sweat wires and internal lights 2 Remove product from case and store in an another case or walk in facility 3 Remove screens trays bottom pans ducts where applicable and all removeable interior covers Clean parts separately as discribed on this page CAUTION Do not soak lighted shelves Water will short or damage the shelf lighting system 4 If case has lighted shelves remove and clean separately by wiping with a damp Page G 24 TYLER REFRIGERATION cloth Make sure receptacle covers are installed when shelves are removed 5 Remove all loose debris from the case It could clog the drain during cleaning NOTE e If a germicidal detergent is not available rinse after cleaning and apply a sanitizer Sanitizer should thoroughly drain and air dry e When cleaning and rinsing this case try not to use water faster then the case drain can carry it away 6 Clean surface with warm water and germicidal detergent at recommended concentration A brush or cleaner pad will aid in removing dirt Don t soak electrical wiring and fans unnecessarily Rinse thoroughly with clean water and let air dry 7 Sanitize the case with Quaternary Ammonium Solutions ex KAYQUAT II J 512 Sanitizer SANIQUAT 512 etc approved per 21CFR 178 1010 followed by adequate draining and air drying These solutions may be obtained from Kay Chemical Co Johnson Wax Professiona Coastwide Laboratories etc 8 Replace all
17. are are in a plastic bag taped to the interior of the case 6 Push cases tightly together making sure the pull ups are aligned On waterfall produce cases remove bottom tray 1 and access covers 3 3 On island cases remove front and rear pull up access covers 3 October 2004 Page G 9 GENERAL UL NSF Adjust legs not shown or add shims 5 as required under the adjoining case base rails 6 Check leveling at hand rails 7 top of case 8 and back of case 9 NOTE Shelving bracket slots must be aligned Use recommended case alignment clamps to help installation See page G 22 CAUTION Do not drill or use other holes through the case end for pull ups This may deform the case end and could cause joint leaks and or poor refrigeration A Position all pull up bolts and or mounting hardware 10 at pull up locations A and B A B and C or A B C and D Do not tighten any pull up hardware until all of it has been installed Tighten all pull up hardware equally starting at point A and finishing at point D Do not overtighten Page G 10 TYLER REFRIGERATION 9 Install all pull up access covers 3 front duct 2 bottom tray 1 and or front cladding 4 where applicable 10 Remove shipping tape from all fluorescent lamps Trim Installation Alignment Upper Trim Installation Loosen screw
18. arpentry Line Up Check List 1 Make sure there is a smooth transition from the truck to the delivery dock before rolling cases with casters off the truck NOTE All necessary hardware and caulking can be found in the Filler Kit located in the well of each case 2 Check the level of the floor area where the cases are going to be lined up 3 Set and level the first case at the highest point on the floor NOTE Adjacent cases may require different amounts of levelling or shimming to allow for proper case line up 4 Level cases as necessary legs with leveling inserts or shims to align case pull ups fronts tops and allow for proper operation 5 Have case to case joints been properly caulked and sealed Each joint requires two beads of caulking where the cases join together One bead on the inside and outside of the foam gasket and door frame assures good sanitation and refrigeration See Case Line Up in this October 2004 GENERAL UL NSF manual for proper caulking locations 6 Have the patch ends been properly caulked and installed with the proper hardware 7 For cases with shelves make sure the shelving bracket slots on multi shelf cases line up and that the shelves are installed in the proper position NOTE The bumpers should all be pushed tight against the center case in the line up before the end trims are installed 8 After cases are completely installed and where local sanitation
19. as gas defrost If there is no way to avoid this insulate the piping for the portion that runs through the other cases Temperature variations of refrigeration and defrost cycles cause piping to expand and contract Allowing for this expansion and contraction will prevent piping failures The following are typical expansion rates for copper tubing Page G 4 TYLER REFRIGERATION Header along cases 7 8 3 Max for gas defrost 100 F to 40 F 2 5 per 100 foot run ultra low temp 40 F to O F 2 per 100 foot run low temp O F to 30 F 1 5 per 100 foot run medium temp 30 F to 50 F 1 per 100 foot run high temp Expansion loops are designed to provide a definite amount of travel Placing the loop in the middle of a piping run will allow for maximum pipe expansion with the minimal amount of stress on the loop Don t use 45 degree elbows for loop construction because they will not allow the lines to flex Refer to the charts on the next page for expansion loop lengths Suction and liquid lines cannot be joined together or be allowed to touch Pipe hangers must not restrict the expansion and contraction of piping Insulation on suction and liquid lines makes the whole system more efficient Insulate it pays April 2007 Installation amp Service Manual GENERAL UL NSF Expansion Loop Sizing of 3 to compensate for medium temp 1 5 per 100 Pi
20. be cleaned daily with a damp cloth After initial installation apply coat of appliance wax to these surfaces Repeat wax application as necessary to keep surfaces shining Stainless steel surfaces should be cleaned as needed with a damp soft cloth In addition stainless steel cleaners may be used to help protect surfaces longer Rigid vinyl surfaces bumpers handrails amp raceway covers should be cleaned with a soft cloth and warm soapy water or with non abrasive cleaners like Fantastik or Pro Formula 409 with a mildly abrasive sponge Both of these cleaners will do an excellent job in most instances Clean difficult spots with Comet cleanser with chlorinal and a plastic scrubber or abrasive sponge Manufacturers directions should be followed carefully CAUTION Do not use Comet on corner or vacuum formed trim Discoloration could occur Corner trim for island cases and vacuum formed trim for wedge cases should be cleaned only with Fantastik or Pro Formula 409 Cleaned surfaces treated with Armour All or Pledge furniture polish will help keep surfaces looking good and make them easier to clean WARNING Do not use hot water on cold glass surfaces This can cause the glass to shatter and could result in personal injury Allow glass fronts ends and service doors to warm before applying hot water Exterior and interior glass surfaces brushed aluminum and chrome should be cleaned with a lint free cloth and warm water
21. codes mandate seal front bottom edge of front base rails with Dow Corning 732 737 999A or equivalent NSF silicone adhesive not supplied 9 Make sure all bumpers front cladding raceway covers and kickplates or front and rear closeoffs are properly installed and secured Install end trims and seal bottom edge if required with NSF sili cone adhesive not supplied Plumbing Check List 1 All plumbing must conform to all national state and local codes NOTE Be sure the drain is installed in accordance with the following specifications and the drain instructions in this manual 2 The minimum slope should be 1 4 per foot or more if possible 3 The maximum length should not exceed 12 feet 4 Never downsize the drain lines Lines should be at least the same diameter as the trap CAUTION Hooking two cases and traps into the same drain line will cause an air trap in one of the two cases This will cause improper drainage to the case with the air trap 5 Two cases can utilize one floor drain as long as both lines and traps are run separately to that drian Page G 21 GENERAL UL NSF Electrical Check List 1 All field wiring must conform to national state and local codes 2 Make sure all electrical connections are properly connected and tight Refrigeration Check List In addition to the standard practices which should be used in the installation of this case the installer should pay particular
22. e cases Mounds of product over the load lines or large signage cards interfere with case air flow Displays of products in multi shelf cases require rotation to prevent frost accumulation Jumble displays of cans should be avoided Uneven display surfaces cause extra air turbulence that make heavier frost deposits on the coils Stocking amp Maintenance Practices for Multi Shelf Low Temperature Cases A large volume of air is constantly in motion in all makes of multi shelf low temperature cases When the case is defrosted air temperature rises for the short time it takes the case to defrost The relatively warm air causes frost to be deposited on the cold products Most frost is removed naturally shortly after the defrost cycle ends However some frost may remain on the products stored in the back of the case Product rotation is the moving of product from the rear to the front and adding new stock to the rear This prevents frost from accumulation on products stored in the rear of the case NOTE Frozen foods are perishable and cannot be left on display indefinitely October 2007 GENERAL UL NSF Clean multi shelf cases regularly Removing loose bits of wrappers or other debris daily prevents the need for shutting down the case for major cleaning Keeping drain clogging litter out of the case is very important in preventing refrigeration failure or sub par performance l D a FHI kr o 20 o o j i
23. eat exchanger for incoming liquid during the refrigeration cycle and as a drain pan heater during gas defrosting A defrost termination klixon is located at the bypass check valve When the defrost termination klixon senses the appropriate temperature it shuts off the flow of hot gas Most cases use a 55 or 60 F defrost termination klixon that will represent 70 F due to time lag Use 70 F termination setting for electronic temperature sensors On N6D deli cases meat cases and glass door cases the fans are deactivated during gas defrost by a fan delay klixon located on the right end of the coil Fan operation will restart when the klixon senses the appropriate temperature On glass door cases there is an additional klixon used to Page G 20 TYLER REFRIGERATION activate and deactivate the drain pan heater as needed during the defrost cycle Optional Air Defrost Most TYLER multi shelf meat and deli merchandisers can be equipped with air defrost Air defrost effectively defrosts with comparable product quality to electric or gas defrost but costs less The reversible permanent split capacitor PSC fan motors which make air defrost possible cuts the cost of fan operation considerably The motor design and the capacitor required for reversal makes the motor much more efficient When an air defrost is
24. ers 2 in a case line up have been pushed together towards the center snap on and position bumper end trim 6 so it covers any end gap between the end of the bumper and the patch end 4 After raceway covers have been slid together towards center of case line up and secured install top of raceway end trim 6 in lower cladding 2 and secure bottom with screw 7 Page G 12 April 2007 Installation amp Service Manual Kickplate and End Closeoff Installation High amp Low Base Models without Legs NOTE e Seal the front base rail to the floor before installing kickplate supports e Kickplate supports MUST be installed before piping case e Kickplate and end closeoff should not be installed until all case piping and electrical hook ups are complete F Se Front _ E Base Rail Silicone GARA magbati s one a ee Pt Papa aah W PAW Ka Floor 1 Using Dow Corning 732 737 999A or equivalent NSF silicone adhesive not supplied completely seal bottom front edge of front baserail to floor This includes any gaps made from the shims used for leveling the case lineup Correctly applied silicone must fill the gap between the base rail and the floor and completely contact both the front base rail and the floor 2 Position slots of kickplate support assemblies 1 or kickplate support 2 over premounted base rail shoulder screws 3 Push kickplate supports 1 or 2 down until they are flush with the floor
25. ew spring clip 4 4 Replace bottom tray s 1 in case 2 Page G 27 GENERAL UL NSF Fan Motor Replacement 1 Remove bottom tray s 1 from case 2 2 Remove three screws and mounting brackets 7 from fan plenum 8 3 Carefully lift fan motor assembly and unplug wire connector 4 Remove three screws bracket mounting plate 6 and mounting brackets 7 from fan motor 5 NOTE If replacement blades and or motor are not available unplug motor and cover opening until the replacement parts are available 5 Replace new fan motor assembly in reverse order Page G 28 TYLER REFRIGERATION Color Band and Bumper Replacement The bumper hand rail bumper retainer and color band attach together to form a single assembly To replace any part of this assembly follow these procedures Color Band Replacement 4 2 res 1 Starting at one end carefully pry top end of color band 1 from top of the hand rail bumper retainer 2 2 Work top of color band 1 free from the full length of hand rail oumper retainer 2 3 Lift color band 1 off top of bumper 8 Do not lose or misplace the color band backer 4 from behind the color band 1 joint area 4 Position color band backer 4 behind joint area between color bands 1 and install new color band 1 in reverse order NOTE Color bands on glass front cases can only be removed by first removing the bumper and bu
26. igeration Inc hereinafter referred to as TYLER warrants to the original purchaser of the Equipment with the Model and Serial Number shown above that said Equipment including all parts thereof is free from defects in material and workmanship TYLER S sole obligation under this warranty shall be limited to repairing or exchanging any part or parts f o b factory which may prove defective within one year from date of original installation not to exceed one year and ninety days from date of shipment from the factory and which TYLER S examination discloses to be thus defective All defective parts must be returned to the Tyler factory of origin within thirty 30 days under the terms of this warranty As to products or parts not manufactured by Tyler the warranty if any of the respective manufacturer of any items of new equipment and parts is incorporated into this warranty by reference THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED AND DOES NOT INCLUDE ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TYLER SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL INCIDENTAL OR SPECIAL DAMAGES INCLUDING BUT NOT LIMITED TO LOSS OF FOOD PRODUCTS LOSS OF PROFITS LOSS OF REFRIGERANT OR INJURY TO PERSON OR PROPERTY CAUSED BY DEFECTIVE EQUIPMENT MATERIAL OR PARTS TYLER S SOLE LIABILITY SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT OF ANY DEFECTIVE PART OR PARTS AS ABOVE STATED AND SHALL NOT INCLUDE LABOR O
27. lM olnrJolstlalni o ris oo Fie oN fd ba ba TION lt lOlaoln ofwl lolNl lt lo TITITIF 109 RIE E o e NINJAN PN Par pang king ba Spel hard fred bore bone UA NG NN 8 UG tf of fF 6 bed Toye id Read Pd pad bd Ld Pd N 0 O in and KAN for o 2 3 ant fed ails In a pod foe Frode bo 9 00 00 pag puna NINI NN ala olo o o o Ve ite O DINJO m MLO O NIolwM ol jalalalaje e A mi R iE pa pg Pag Ni tole o gt e eje ANINIIAINIQISISISISISlS in 3 lo O nfinjoof Nl o o Pf an fc BS bad ap pa ha ar pe O Sled pg agp a ng NG HOI stlololol lojdsin md IN m e e e j eel NIRlallalalolslolololels SIS Ta Lu Ng HSNI E nlololals olni TIS B SI3 8 3 o olololololol w ojn a a ea i BY bn a Pa lag Ka kk pk o fr fr n a April 2007 change for low or medium temperature applications respectively e With R404A refrigerant 1 turn will result in change for low or medium temperature applications respectively e With R 502 refrigerant 1 turn will result in change for low or medium temperature applications respectively e With R 507 refrigerant 1 turn will result in change for low or medium temperature approximately a 3 5 or 1 5 F superheat applications respectively The number of adjustment turns available between stops on the Alco valves is 10 to 12 approximately a 4 5 or 2 F superheat approximately a 3 5 or 1 5 F superheat approximately a 3 5 or 1 5 F superheat tu
28. mper retainer These color bands DO NOT snap out as is the method with non glass front cases To replace the band simply slip the band out of the glass retainer replace and re install band bumper retainer and bumper April 2007 Installation amp Service Manual GENERAL UL NSF Bumper Replacement Hand Rail Bumper Retainer Replacement NOTE NOTE Make sure color band has been removed Make sure the color band and bumper have before replacing the bumper been removed before replacing the hand rail oumper retainer 1 Push in on center of bumper 1 while pulling out on bottom of bumper 1 This will start to separate bumper 1 from hand rail oumper retainer 2 2 Make sure the bottom of the bumper 1 is released from the hand rail oumper retainer 2 for the full length of the case 3 After bottom is released firmly pull out 1 Mark position of the hand rail bumper top of bumper 1 to snap it free from retainer 1 on front of case 2 hand rail bumper retainer 2 2 Position hand rail backers 3 into ends of 4 Remove bumper backers 3 from both hand rail oumper retainers 1 not being ends of bumper 1 replaced 5 Install new bumper 1 in reverse order 3 Remove mounting screws 4 and hand 2 rail bumper retainer 1 from front of case 2 4 NOTE Hand rail bumper retainer must be installed in same position as removed to assure prope
29. n aaaea G 14 Refrigeration Procedures 0 0 Aa G 15 Refrigeration System aa G 15 Control Options AAP AS G 16 Setting the Superheat 0 G 16 Temperature Pressure Chart 0 00 cece eee G 17 Defrost Information a G 19 Off Time Defrost APA G 19 Optional Electric Defrost 0 0 0 eee G 19 Optional Gas Defrost naa a maa piece tab MAN Ao BAD a AA AG ea G 20 Optional Air Defrost a G 20 Installation Procedure Check Lists G 21 Use of Case Alignment Clamps 00 cee G 22 Cleaning and Sanitation General Cleaning Information 0 00 0c eee G 23 Case Cleaning a G 24 High Pressure Cleaning 0 00 eee G 24 Cleaning Under Case with Base Rails G 25 General Information Proper Case Usage 0 ccc cc eens G 25 Shelf Light Sockets 0 0 ccc es G 25 Shelving Loads 35 0 eens G 25 Service Instructions Preventive Maintenance a G 26 800MA T 12 Lamp Replacement 0000000es G 26 T 8 Lamp Replacement a G 26 Remote Ballast Replacement 0 G 27 Fan Blade and Motor Replacement AA G 28 Color Band and Bumper Replacement G 28 Raceway Cover Removal a G 30 Kickplate Removal a G 30 Front Kickplate or End Close off Removal
30. om between bottom of patch end and case base rail 2 Remove mounting screws and kickplate joint trim s 2 from kickplate 3 section being removed 3 Remove mounting screws and kickplate 3 from kickplate support 4 or 5 4 Replace kickplate kickplate joint trim and lower end close off in reverse order 5 Using Dow Corning 732 737 999A or equivalent NSF silicone adhesive reseal bottom edge of lower end close offs to floor if required by local sanitation codes April 2007 Installation amp Service Manual GENERAL UL NSF Front Kickplate or End Close off Removal Cases with Legs 3 To remove a front kickplate or rear lower close off 8 grasp end of front kickplate or rear lower close off 8 and pull out until leg support clamps 9 release from 1 Remove screws 1 and slide kickplate the case legs 5 joint trim 2 to one side 4 Replace front kickplate or lower close offs _ i in reverse order T me ai i 5 7 6 3 2 If removing a front kickplate section from the end of a case lineup remove end close off panel 3 by pulling it out to release the leg support clamps 4 from the case legs 5 and down to clear the adjustable top panel 6 from behind the patch end 7 October 2004 Page G 31 TYLER REFRIGERATION A division of Carrier Commercial Refrigeration Inc One Year Equipment Warranty TYLER REFRIGERATION a division of Carrier Commercial Refr
31. on line means a loss in system capacity It forces the compressor to operate at a lower suction to maintain the desired temperature in the evaporator coil Pressure drops reduce compressor capacity and increase system compression ratios causing higher operating costs To minimize pressure drop keep the refrigeration line run as short as possible and the number of fittings to a minimum All suction lines should be insulated to minimize heat absorption and condensation drippage Seal refrigeration lines where they enter the case Sealing is necessary to prevent condensation air leaks and other problems Be sure it is done before leaving the job Page G 16 TYLER REFRIGERATION NOTE It is very important to have a good seal around the refrigeration lines This will prevent any water leakage into the bottom of the case During the installation process do not disturb the factory seal between the drain and case ends This seal must remain water tight The access opening should be insulated along with all refrigeration lines exiting the case to prevent condensation buildup on cold surfaces Control Options The temperature of case line ups can be controlled by one of the following methods 1 Indoor single compressor system not using a liquid pump down before defrost The low pressure control on the compressor system can be set to cycle the compressor on and off at specific pressures that correspond to the desired temperat
32. or glass cleaner Page G 23 GENERAL UL NSF Remove normal accumulation of dirt and debri daily to maintain efficient refrigeration Interior surfaces require different cleaning intervals Cases should be cleaned and sanitized per Federal State and Local Ordinances Typically meat and produce cases should be cleaned at least once a week dairy cases every two to four weeks and frozen food cases every two to six months Interior surfaces may be cleaned with most domestic detergents and sanitizing solutions with no harm to the surfaces Honeycombs or grids in the air ducts should be checked and cleaned whenever the case interior is cleaned To clean a honeycomb or grid loosen the screws and slide retainer back or remove screws and retainer to remove honeycomb or grid from the air ducts Clean the honeycomb or grid with copressed air vacuuming system or spray detergent and rinse Make sure the honeycomb or grid is dry before replacing it in the case Reinstall honeycomb or grid in air duct and secure with retainer and screws Case Cleaning All case cleaning is dependent on proper installation of the cases with good caulking between cases and adequate case drainage system Cleanout holes in bottom trays facilitate case drainage NOTE Consult a service agency for proper method of shutting off the refrigeration and electrical supply 1 Shut off refrigeration supply to the case s and electrical power to the case fans
33. ors should be removed in the truck and cases should be unloaded and moved by one of the conventional methods All cases containing glass MUST be stored and installed on level surfaces to avoid possible product damage and or glass breakage 1 Check for hidden damage while unloading and unpacking of the case 2 Check the shipped loose parts for any items such as legs shelves nuts and bolts caulking access doors etc 3 Check the equipment remove the screws used to hold down the deck pans during shipping Remove the pans and check the following if applicable Remove all packing material Check all flare nut connections for tightness Check all fan bracket bolts for tightness oe SB Check all electrical plug in connections for positive seal 8 Make sure the expansion valve feeler bulb is securely attached to the suction line 9 All field wiring and plumbing MUST conform to national state and local codes 10 Do not remove plugs from flare nuts or caps from threaded connections until the unit is ready for final hook up All coils are pressurized and have a Schrader Valve access fitting If pressure has been lost check for leaks October 2004 GENERAL UL NSF INSTALLATION PROCEDURES Carpentry Procedures Case Line Up Before starting the case line up review the store layout floorplans and survey the areas where case line ups are going to be installed WARNING e These cases are very
34. ortant for controlling bacteria growth The installer is responsible for following these instructions as set forth within this Installation and Service Manual Any variance will produce poor performance thus releasing TYLER Refrigeration from any liability Refrigeration piping must be sized as described within this manual by the installer Normal applications require refrigeration piping to be insulated unless otherwise Page G 6 stated Refer to Liquid and Suction Line Sizing Information section in this manual for TYLER s requirements COMPONENT OF COMMERCIAL REFRIGERATORS AND OR STORAGE FREEZERS IN ACCORDANCE WITH ANSI NSF 7 2003 13KN 9311057 SANITATION COMPONENT OF COM MERCIAL REFRIGERATORS COMPONENT Neh Teese KO ey AND OR STORAGE FREEZERS IN ACCORDANCE WITH ANSI NSF 7 1999 13KN One of these labels will be displayed on each product or as part of the bottom portion of the namelplate label NOTE The NSF label began with service case production TYLER Refrigeration of Niles Michigan meets UL and NSF International certification require ments NSF certification is accredited by American National Standards Institute ANSI and the Standards Council of Canada SCC Manufactured products are built to meet UL requirements which includethe ANSI NSF 7 standards for Commercial Refrigerators and Storage Freezers These standards provide basic criteria to promote sanitation and protec
35. pe diameter has no affect on the Chart 1 is to be used for A B and C type amount of linear expansion but is needed for expansion loops Chart 2 gives the total determining the size of the expansion loop length of the expansion joint L along the Find the 3 column at the top of Chart 1 and outer surface go down until it crosses the 1 3 8 row The X dimension is 24 48 or 72 for A B or C Example Given a 200 run of 1 3 8 medium type expansion loop respectively temp piping there will be a linear expansion Type A Loo 2X O gaai p Type C Loop x Type B Loop X Length in inches for Linear Expansion of mere er ere eee a rr ml nar ar ara arr aa 0 ar a ae ar or pr 59 sa vor se ome ar a ar ar or or fm o ENERG asar ar ar or oo o ae a0 o0 a a ar ar ar ar ae ar ae or 3s sar aero ar aan ar a a are a a a fe pepe aan o fo mn 6 1 8 20 29 35 41 46 50 58 65 TI 77 L Developed Length of Expansion Offsets e o a rp Fr er el ETE mia lalo o e le e e e Ti o as as o am o oe oe foo pe fo an fm Jas om os na ise fos r oe oe mw or om wom us me TIKA oe to a oor wow AA zoe a wo om a oe vor wo oe var ase se ae ANAN AE ANAN ARA cme se ae 9 noe aie j o aso ae ANAN a oe vor a or wr aor ver as
36. r fit and alignment during installation 4 Install new hand rail bumper retainer 1 on front of case 2 with mounting screws 4 5 Position hand rail backers 3 to cover any remaining space between adjoining hand rail bumper retainers 1 6 Install the color band 4 in the bumper 6 Replace the bumper 5 color band 6 and 1 and bumper retainer 2 end trim 7 where applicable on the hand rail bumper retainer 1 October 2004 Page G 29 GENERAL UL NSF Raceway Cover Removal On some straight front cases raceway covers need to be removed to provide electrical access 1 Remove screws 1 and raceway cover retainers 2 from bottom section of raceway cover 3 that is being removed 2 After all raceway cover retainers have been removed rotate raceway cover 3 up and pull down to remove it from the lower cladding 4 NOTE Additional holding pressure may be required at case joint to keep backer intact On high base cases most meat and produce cases raceway access is gained by removing the lower front cladding Remove the screws from the top of the lower cladding and slip out the bottom tabs from the slots in the base supports Be sure to replace all screws when re installing the cladding Page G 30 TYLER REFRIGERATION Kickplate Removal Cases with Base Rails 1 If removing kickplate from the end ofa case lineup remove three screws and slide out lower end close off 1 fr
37. ractices CAUTION A clogged waste outlet blocks refrigeration This could result in inadequate case cooling and possible food spoilage The installer is responsible for the proper and code approved installation of a system which dispenses condensate waste water through an air gap into the building s indirect waste system Waste outlets and drip pipes from refrigerators are not intended for direct connection to the building plumbing system All remote refrigerators equipped with automatic or off time defrost systems are provided with a waste outlet The outlet is located in the lowest level of the compartment to which waste water will drain All TYLER display refrigerators are provided with a water seal It may be factory installed or shipped loose for field installation If shipped loose the installer must follow TYLER s installation procedure as outlined within this manual The importance of proper drain connections cannot be overemphasizes Complications resulting from drainage problems can be avoided by following these good drainage guidelines 1 The minimum slope of waste pipe should be 1 4 per foot or more if possible April 2007 Installation amp Service Manual 2 The maximum length of waste pipe should not exceed 12 feet 3 Never downsize the drain lines Lines should be at least the same diameter as the trap 4 On low temp cases the trap must be away from the tee to prevent possible free
38. rns in or out e With R 22 refrigerant 1 turn will result in ALCO VALVES SPORLAN VALVES The number of adjustment turns available change for low or medium temperature applications respectively e With R 502 refrigerant 1 turn will result in change for low or medium temperature applications respectively e With R 507 refrigerant 1 turn will result in change for low or medium temperature approximately a 4 5 or 2 5 F superheat approximately a 5 or 2 5 F superheat approximately a 4 5 or 2 5 F superheat applications respectively change for low or medium temperature With R404A refrigerant 1 turn will result in approximately a 5 5 or 3 F superheat applications respectively between stops on the Sporlan valves is 9 to With R 22 refrigerant 1 turn will result in 10 turns in or out Page G 18 Installation amp Service Manual GENERAL UL NSF Defrost Information defrost based on the information provided under Specifications in the case specific NOTE manual The time clock may be an individual See Case Specific 14S manual for individual clock on single compressor system a defrost settings and klixon locations multi circuit clock on parallel compressor system or an electronic clock on either Off Time Defrost compressor system All cases that use a refrigerated coil that Optional Electric Defrost operates below the freezing point of water will When an electric defrost is initiated power is collect fros
39. rol settings for each case Setting the Superheat Use the instructions illustration and chart below to determine the superheat Ch Cy upna aaa mb ee HAT NOTE This illustration shows the general location of piping and components in a case with two expansion valves 1 Make sure all connections to the expansion valve s are tight 2 If a case has more than one expansion valve starve the flow to the front coil s expansion valve by turning in the adjusting screw 1 1 2 turns NOTE Rear coil expansion valve should always be adjusted first 3 Install pressure gauge on the coil output Most TYLER cases have a Schrader fitting for this purpose Record the pressure reading March 2006 GENERAL UL NSF 4 Using the table on the following page convert this pressure to a temperature 5 Take a temperature reading from the suction line adjacent to the expansion valve bulb being tested 6 Subtract the temperature conversion step 4 from the suction line temperature step 5 This is the superheat of the evaporator 7 lf case has more than one expansion valve reset front coil expansion valve by repeating steps 2 thru 5 See next page for adjustment settings for Sporlan and Alco Expansion Valves Balanced Port Expansion Valves used in TYLER cases are preset by an air pressure bench test Some final adjustment may be necessary due to system designs pressure drops and coil loading
40. round the case Misdirected air drafts from fans open Page G 26 TYLER REFRIGERATION windows or doors can adversely affect the case performance Extra lighting can also affect the case temperature WARNING Fluorescent lamps contain mercury Do not put lamps in trash Recycle or dispose the mercury as a hazardous waste T 8 Lamp Replacement Canopy or Shelf WARNING Shut off light switch or disconnect power supply before changing a lamp 600V lighting system and or ballast surges can burn out adjacent lamps and or cause personal injury or death NOTE Unplugging a shelf lamp will shut off all the shelf lamps in that case section Installing the receptacle cover in place of the lamp plug will complete the circuit and turn on the rest of the shelf lamps in that case section o CT HI 1 Pull down both end caps 1 to separate them from lampholders 2 2 Pull end caps 1 from ends of lamp 3 and or lampshield 4 Remove lamp 3 from lampshield 4 3 Insert new lamp 3 in the lampshield 4 where applicable Install end caps 1 on ends of lamp 3 and or fully seat in ends of lampshield 4 4 Push up both end caps 1 into lamp holders 2 until they snap into place 5 Turn on the light switch or reinstall shelf lamp plug April 2007 Installation amp Service Manual Remote Ballast Replacement WARNING Shut off or disconnect power supply to case before changing a ballast 600V
41. s as needed to line up the canopy hoods Hoods are adjustable in all directions 1 Position canopy joint trim 1 over any gap between the canopy hood joint 2 Secure canopy joint trim 1 with screws at top and bottom as shown 2 Install top pull up access cover 3 to cases 4 with four screws 5 April 2007 Installation amp Service Manual GENERAL UL NSF Horizontal Joint Trim Installation NOTE Make sure top of front glass is aligned be fore installing the front glass trim 2 3 1 Apply bead of caulking compound from 1 Position front glass trim 1 over the top the Filler Kit to the top of each horizontal and in front of the glass joint 2 joint 1 If gap at horizontal joint is too 2 Using holes in front glass trim 1 as a large pull together with sheet metal screws 2 or pop rivets 3 NOTE If additional sealing is preferred 2 wide duct tape can be applied to the top of the internal bottom joint between cases The tape will be covered by the horizontal joint trim Duct tape is not furnished guide drill holes in front glass retainer 3 3 Secure front glass trim 1 with two screws 4 Bumper and Color Band Adjustment 1 Slide hand rail bumper retainer 1 and bumper 2 towards the center of the line up to butt them against the adjoining hand rail bumper retainer 1 and bumper 2 2 Position hand rail backer 3 to cover any
42. s with solder having 35 silver To prevent internal contamination of the line limit the use of soldering paste or flux to the minimum required Flux only the male portion of the connection Piping should be purged with dry nitrogen or carbon dioxide during brazing This prevents the formation of copper dioxide and scale during brazing Copper dioxide and or scale can easily clog the small ports in system valves and pilot valve Page G 15 GENERAL UL NSF NOTE The tubing design pressure is 183 psig for the lowside and 390 psig for the highside Do not exceed these pressures Line Entry Refrigeration lines entry may only require a single entry for an entire line up of cases It could enter the line up at one end or branch both ways from the center Refrigeration lines may be run from case to case in areas designated for them Notches are provided in both ends for this purpose Line sizing should meet the suction and liquid sizing requirements for that case location in the line up See Line Sizing section in this manual If the cases are connected to a parallel system the line size will be specified on the system printout CAUTION Do not run tubing through these cases to another machine if the cases are controlled by a pressure control Pressure sensed from the coldest location could affect the pressure control in a second system This is called cross controlling and should be avoided A pressure drop in the sucti
43. se Alignment Clamps 1 Check and mark the floor where the cases are to be set Set the first case in the line up on the highest point of the floor Level the first case end to end and front to back using the legs or provided shims NOTE On cases with base rails 6 shims should be placed beyond the end of the base rails so the next case can be set on the same shims NOTE Individual case alignment clamps are available through TYLER Service Parts Department under Part No 5092494 Set the next case in the line up Use two alignment clamps on the horizontal joint in the bottom of the cases The clamp near the front of the cases will line up the hand rails The clamp near the back of the cases will line up the shelving bracket slots Level the case end to end and front to back by adjusting legs or shimming base rails Adjust the alignment clamps as needed to allow for the installation of pull up hardware NOTE Do not remove alignment clamps until the pull up hardware has been tightened April 2007 Installation amp Service Manual CLEANING AND SANITATION General Cleaning Information Equipment life and performance are directly related to good cleaning and sanitation practices Recommended cleaning intervals will vary depending on the case s useage Cleaning cases case parts and area around cases regularly will keep high sanitation levels increase case life and minimize maintenance costs
44. sition first case at highest point on the chalk lines and shim case supports as required Check leveling at hand rails top of case and back of case CAUTION Shipping braces should only be removed from case ends that are to be joined This protects the cases from possible damage during the line up procedure NOTE A foam gasket is factory installed on one end of the case This gasket fits into a groove on the adjoining case when cases are pulled together Do not depend on the foam gasket alone to make a good seal Page G 8 TYLER REFRIGERATION 3 Apply two heavy beads of caulking compound from the Filler Kit to the end of case at dotted and dashed lines Proper caulking provides good case refrigeration and sanitation N1P HP NGD N4P HP N6DHPA N4M G HP N6DHPACA N5P NHD HP N5M G HP N6F 3 4 On multi shelf cases remove bottom tray 1 front duct 2 and rear and or top pull up access covers 3 October 2007 Installation amp Service Manual GENERAL UL NSF On single deck cases remove bottom tray 1 front duct 2 and rear pull up access cover 3 On NNG N3MG N2P S cases remove bottom tray 1 front cladding 4 and or rear pull up access cover 3 On cases with legs pull ups are accessible under and behind the case corners 5 The remaining backers and hardw
45. step on the basis of the number of feet of case being October 2004 GENERAL UL NSF served by that portion of the suction line For more detailed Suction Line Sizing Charts see Suction amp Liquid Line Sizing BUFF section on the TYLER Specification Guide Liquid Line Sizing Due to lack of space the specification sheets have just one column for a liquid line size The line sizes on the specification sheets are based on a 5 pound pressure drop for the entire piping run from 50 to 250 eee Example A 25 000 BTUH load sh will require a 3 8 line o1 NO Oo SIE S Os mas N N for 100 equivalent feet Point A At 150 equiv alent feet a 1 2 line would be required for the same load Point B O NB Ko QI SS For more specific line sizing information see Suction amp Liquid Line Sizing BUFF section in the TYLER Specification Guide OJO or O Ga RA Sete eS E Bees El AO GENERAL UL NSF pe s A Gas Defrost Liquid Lines Gas defrost liquid lines to the cases should be branched off the bottom of the header This ensures a full column of liquid to the expansion valve A branch line from the header to an individual case should not be over 3 long and must have a 3 expansion loop incorporated Do not run suction or liquid lines through cases that are part of a separate system especially if either h
46. t during the refrigeration cycle Too supplied to the defrost heater The defrost much frost build up on the cooling coil stops heater is located in front of the coil The the effective air flow and refrigeration An off defrost heater will be turned off or de time control stops the refrigerant and allows energized when the defrost limit klixon the case to defrost at the proper time and clipped to the right end of the coil opens at duration each day its specified temperature The refrigeration is stopped with a time clock Balanced 3 Phase Defrost Wiring mechanical or electronic by either turning off the compressor directly or closing a liquid line The largest number from any of the following solenoid or suction isolation valve ex suction will be the highest load on any single phase line solenoid or suction stop EPR valve The This is called the high leg amps In the time clock is set for the proper number of following example a TG 3 30 defrost module defrosts per day and the proper duration per is required October 2004 Page G 19 GENERAL UL NSF L1 All Loads on leg 1 x 1 73 2 L2 All loads on leg 2 x 1 73 2 L3 All loads on leg 3 x 1 73 2 LI L2 L3 EXAMPLE L1 13 8 8 6 8 6 x 1 73 26 8 amps 23 9 amps L2 13 6 13 8 x 1 73 L3 13 8 8 9 8 6 x 1 73 26 8 amps In this case the high leg amps equals 26 8 Optional Gas Defrost When a gas defrost is initiated the evaporator acts as a h
47. thin the boundaries of the continental United States and Canada and such other areas as are covered by specific agreement between the authorized Distributor and TYLER Mode gt gt gt o Serial Number Z Carrier A United Technologies Company Equipment Warranty updated in October 2008 Page G 32 April 2007 Revision Log This log sheet is intended to track both major and minor revisions to this manual and to describe what the nature of the revision is Revision identification is located in the lower right corner of the cover page Major revisions are lettered alphabetically dated accordingly and require reprinting for inclusion with the prod uct at shipment Minor revisions are denoted after the major revision with a period followed by a sequential number and do not require a printed update All manuals with any revision changes will be available in elec tronic PDF format on the Tyler Refrigeration website Content changes that determine the type of revisions are decided on a case by case basis by Tyler internal management This revision log was created in December of 2008 REVISION TYPE _ TYPE DATE Ha MINOR DESCRIPTION RESULTS Dee 2008 2008 NSF document Ea Minor change in text copy as needed Updated Ea Page minor addition in warranty content Page G 33
48. tion of public health in the manufacturing operation and cleanability of TYLER cases All cases will be grouped in one of these cate gories TYPE display refrigerators where ambient temperatures are typically maintained at 75 F of less Storage and display intended for packaged products only TYPE II display refrigerators for ambient temperatures typically maintained at 80 F or less Display refrigera tors intended for storage and display of NON HAZARDOUS FOODS consisting of unproc essed produce and packaged products only The information contained herein is based on technical data and tests which we believe to be reliable and is intended for use by persons having technical skill at their own discretion and risk Since conditions of use are outside TYLER s control we can assume no liability for results obtained or damages incurred through the applications of the data presented SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Printed in the U S A September 2007 Installation amp Service Manual Pre Installation Check List WARNING These cases are very heavy and require two or more people to unload move position and or install them Improper handling of these cases could result in personal injury NOTE Cases with legs are shipped to stores on castors installed on the base frame If floor transition from the truck to the delivery dock is smooth cases may be rolled directly to the sales floor area If not cast
49. ure employees are aware of the need for proper case cleaning and follow the recommended guidelines WARNING Always shut off electricity to case before cleaning and or inspecting electrical components and or connections Moisture on electrical components could cause electrical shock and or personal injury 2 When cleaning this case don t overlook such things as the fan blades and coils Be sure to keep fan blades and exposed coils free of dirt and dust Accumulated dirt on fan blades could lead to premature fan motor failure 3 Make it a policy to perform routine inspections of the electrical connections Check them for loose connections and or frayed wires Make sure the lamp guards are installed correctly Serious problems can be avoided by taking care of small problems when they are found 4 Keep the drains clean and free of debris Clogged drains rob the case of needed refrigeration 5 Do not use ammonia or ammonia based cleaners on or around electronic or solid state components The ammonia will damage these components 6 Periodically inspect the insulation around the suction lines Repair or replace any loose or missing insulation These lines must be insulated at all times 7 Make sure the case is loaded correctly Do not use large signage in a case Do not let the product block or cover the air ducts or extend above the load lines Keep the product stored or stacked neatly 8 Check the enviroment a
50. ure range at the case 2 Indoor single compressor system needing a more accurate temperature control A thermostat can be mounted with its sensing bulb in the discharge air stream on the case The thermostat is used to cycle the compressor on and off at specific temperature to maintain the desired case temperature range 3 Outdoor single compressor system using a liquid pump down cycle before defrost or other applications that need a more accurate temperature control A thermo stat can be mounted with its sensing bulb in the discharge air stream on the case The thermostat is used to cycle a main liquid line solenoid valve on and off at specific temperatures to maintain the desired case temperature range The liquid line solenoid valve used for temperature control should be mounted as close to the case as possible to minimize the temperature swing that may occur after the valve closes April 2007 Installation amp Service Manual 4 Parallel compressor system or other applications needing a more accurate temperature control An evaporator pressure regulator EPR valve is installed between the case and the compressor The EPR valve is set to control the case suction pressure which corresponds to the desired case temperature The EPR valve will hold a relative constant pressure at the case and will not allow it to go below a set pressure See model specification sheet in the case specific I amp S manual for specific cont
51. zing of the trap 5 Up to two case drains can utilize one floor drain NOTE Both case drains require individual water seals 6 Never put two case drains with two traps on the same waste pipe This can cause an air trap on one of the case drains October 2004 GENERAL UL NSF Refrigeration Procedures Refrigeration System CAUTION e Protect Schrader valve core and cap and the expansion valve feeler bulb from excessive heat by removing them when necessary Replace properly before starting the system e Brazing and welding operations should be kept away from both the drain pan and sealing materials in the drain area High temperature exposure in these areas may cause damage to seals and or painted surfaces of the drain pans The type of refrigerant used in the case will be specified on the unit nameplate A Schrader valve is provided at the left of each coil for system testing and charging The suction and liquid lines to the evaporator coils are capped off This holds the dry nitrogen charge inside the evaporator coils When cutting off the caps use a tubing cutter to prevent the introduction of copper shavings to the system See the model specification sheet in the case specific I amp S manual for proper line entry and positioning specifications Only use clean dry sealed refrigeration grade copper tubing Make copper to copper joints with phos copper alloy 5 silver or equal Make dissimilar metal joint
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