Installation & Service Manual
Contents
1. 7 Defrost Control Chart 7 Optional Hot Gas Defrost Operation Requirements 7 Installation Procedure Check Lists See Gen UL NSF I amp S Manual Wiring Diagrams 8 N6F Domestic amp Export 50 Hz Case Circuits 9 N6FL Domestic amp Export 50 Hz Case Circuits 13 Cleaning and Sanitation See General UL NSF I amp S Manual Component Removal and Installation Instructions for Cleaning 17 Shelves and Shelf Brackets 17 Ways 17 oF ee ae 17 Discharge Air Honeycombs 17 Font GISddlld 17 Page 2 February 2008 Installation amp Service Manual N6F N6FL Page General Information NSF Product Thermometer 18 Night Curtains and Strip Doors 18 Case Shelving Information 18 Service Instructions Preventive Maintenance See General UL NSF 1 5 Manual Ballast and Lighting Locations 19 Fan Locations 20 Checking Air Velocities 20 Cleaning Honeycomb 20 Anti Sweat Heater Replacement 21 Defrost Heater Replacement2. 21 Ambient Air Filter Replacement 21 Parts Information Cladding and Optional Trim Parts List 22 Operational Parts List 24 TYLER Warranty See General UL NSF I amp S Manual The following Low Temperature Multi Shelf Frozen Food Merchandiser models are covered in this manual MODEL DESCRIPTION N6F 6 8 amp 12 MULTI SHELF FROZEN FOOD MERCHANDISER N6FL 6 8 amp 12 MULTI SHELF FROZEN FOOD MERCHANDISER WITH 24 1 2 FRONT January 2005 Page 3 TYLER N6F NGFL REFRIGERATION 4 SPECIFICATIONS N6F N6FL Multi Shelf Frozen Food Merchandiser Specification Sheets Refrigeration Data CAPACITY BTUH FT UNIT DISCHARGE AIR gt AVG REF CASE CASE 02 CHARGE VELOCITY FPM LENGTH USAGE PARALLELI a LBSFT NGF NGFL 6 8712 1 473 Capacity data listed for cases with 2 rows of T 8 canopy lights and one row of T 8 nose lights or 3 rows of T 8 canopy TN and up to 4 rows of unlighted shelves For sizing all refrigeration equipment other than TYLER use conventional BTUH values Evaporator temperature is based on the saturated pressure leaving the case Air velocity measured 1 hour after defrost at the appropriate top discharge air duct using an ALNOR JR velometer with a scoop This is an average refrigeration charge per foot bas
3. w k z o i 29 5 1 LC B 27528 24AUGO1 LC CK E13 emer sos e lt 27508 _ L BLK WIRE CONNECTOR PART TYPE T 6511 MODE FABRICATED X e FANS H AMBIENT AIR BAND 2 FANS PER 8 CASES 1 FAN PER 6 CASES n FANS J SECONDARY AIR BAND 2 FANS PER 6 amp 8 CASES DISCHARGE GRID ANTI SWEAT HEATER ON TO PROVIDE POWER TO NOSE LIGHTS CONNECT BRN WIRE QUICK CONNECT TO TAB OPTIONAL CASE TEMP THERMSTAT REMOTE BULB IS LOCATED IN TOP SHELF D SCHARGE AIR STREAM REVISED HG SYMBOL OPT ONAL SOLENO D VALVE TOP SHELF ANTI SWEAT HEAT DUCT SWEA EATERS FAN DELAY KL XON OPEN 60F CLOSE 40F FANS PRIMARY AIR BAND 2 FANS PER 6 amp 8 CASES FAN DELAY KL LOCATEO AT R H END OF FROST COIL FAN PANEL GROUND clu Z EBENE C LO Lcd ALL CASES MUST BE GROUNDED 2 3 OPTIONAL HOT GAS L5 NOTE a DEFROST TERMINATION 3 WHEN THERE IS MORE THAN ONE CASE IN A LINE UP THE KL1XONS OPENS eo r cLosES 40 F o 120 60HZ w SHOULD BE CONNECTED IN PARALLEL CLOSES 60 F OPENS 40 F SUPPLY 5 WHEN USING OPEN ON RISE CONTACTS z 0 OR 1 AND 3 THE KLIXON 15 MOUNTED 220VAC 50HZ z ONNECT KLIXONS IN SERIES WHEN ON THE PIPE BETWEEN 2 INTERNAT I ONAL aS rtg remu AT THE COMPRESSOR RACK i THE E
4. eps We w ee d ALL CASES MUST BE GROUNDED 2 3 OPTIONAL HOT GAS DEFROST TERMINAT ION KL I XON OPENS 60 F CLOSES 40 F NOTE WHEN THERE IS MORE THAN ONE CASE IN LINE UP THE KLIXONS SHOULD BE CONNECTED IN PARALLEL WHEN USING ON RISE CONTACTS ONNECT KLIXONS IN SERIES WHEN USING CLOSE ON RISE CONTACTS 1 AND 2 TO CONTROL DEFROST TERM AT THE COMPRESSOR RACK Page 16 KLIXON IS MOUNTED ON PIPE BETWEEN THE DISTRUBITOR AND THE CHECK VALVE ON THE EVAPORATOR COIL TO RACK CONTROL CIRCUITS m OR E CLOSES 60 F OPENS 40 F 5 g M L rn 3SiH NO 3S015 NOUS 120V 60 2 SUPPLY OR 220VAC 50HZ INTERNAT I ONAL March 2008 Installation amp Service Manual CLEANING AND SANITATION Component Removal and Installa tion Instructions for Cleaning NOTE See pages G 23 and G 24 in General UL NSF I amp S Manual for important safety and cleaning instructions Shelves and Shelf Brackets 1 Remove product from shelves and store properly 2 If shelf has a light unplug the light cord from the socket in the rear duct panel Completely insert socket cover in the light socket to protect the receptacle 3 Push shelves back and then lift up and out to remove them from the shelf brackets 4 Remov
5. gt e 2 FANS PER 12 CA 215 OPTIONAL CASE omo i p oe TEMP THERMSTAT o a REMOTE BULB 15 Soo LOCATED IN TOP SHELF SCHARGE AIR STREAM AIR BAND 3 FANS PER 12 CASE sy er f DISCHARGE GRID ANT 5WEAT HEATER iilii OPTIONAL SOLENOID TOP SHELF DUCT ANT SWEAT HEATERS FANS OJ PRIMARY AIR BAND 3 FANS PER 12 CASE ALL CASES MUST BE GROUNDED LAMPS NOTE Mii DEFROST HEATERS fM g AA H 208 6 CASE WALL _ OR 220 5 INTERNAT ONAL Page 10 March 2008 N6F Domestic amp Export 50 Hz Case Circuits Gas Defrost CA m TOP RACEWAY l i LAMPJ T LAMP f Ray 4 LAMP T 8 LIGHTS RED BALLAST ij 9027300 C AIR STREAM AIR BAND OPTIONAL CASE TEMP THERMSTAT REMOTE BULB 15 LOCATED IN TOP SHELF DISCHARGE 2 FANS PER 6 amp 8 CASES FANS J SECONDARY REMOVED HO LAMPS lt amp E I er reco gz wae 55 3 55 31vO O 934255 n 552 mil CANOPY LIGHTS 8 uj e 59 NIN nm 8 H 40 8 m FANS 5 AMBIENT M SIN AIR BAND 2 5 PER 8 5 5 m gt 1 FAN PER 6 CASES b QOO x OFF g
6. 070 140 2 10 840 1680 2520 N A N A 210 2520 Standard lighting for N6F cases is 2 rows of T 8 canopy lights and 1 row of nose lights with electronic ballasts Standard lighting tor N6FL cases is 3 rows of T 8 canopy lights with electronic ballasts 208 VOLT DEFROST AMPS 11 2 15 0 23 0 15 15 15 23 23 23 15 15 23 15 23 23 23 23 23 DF 3 30 DF 3 30 DF 3 30 DF 3 30 30 DF 3 30 30 3 30 30 DF 3 30 30 30 DF 3 30 30 30 DF 3 30 30 30 CASE TO CASE SUCTION LINE SUB FEED BRANCH LINE SIZING CASE CIRCUITS In addition to the 208V defrost circuit there is the 120V case fan circuit plus the 120V case anti sweat circuit Shelf or canopy lights require a separate 120V circuit which can be switched at the back room for convenience in controlling the lights UL SANITATION approved in accordance with ANSI NSF 7 CASE BTUH REQUIREMENTS are calculated to produce approximately the indicated entering air temperature with absolute maximum operating ambient limits of 75 F 55RH The information contained herein is based on technical analysis and or tests performed in a controlled lab environment that are consistent with industry practices and is intended as a reference for system sizing and configuration purposes only and for use by persons having technical skill at their own discretion and risk Conditions of use are outside of Tyler s control and we do not assume and hereby disclaim any liability
7. 7 75 15 5B 9301932 9301932 9301932 sec 7 75 22 5 9040680 9040680 prim 8 75 25 5B 5984399 5984399 5984399 prim 8 75 30 5B 9407319 9407319 8 75 18 9040682 8 75 22 9040683 Fan Bracket Plate 9041077 9041077 9041077 9041077 9041077 Opt ECM Fan Motors ambient 9025002 9025002 9025002 8 8 8 secondary 9025002 9025002 9025002 8 Watt 8 Watt 8 Watt primary 9025003 9025003 9025003 16 Waitt 16 Waitt 16 Watt Opt ECM Fan Motor Brackets ambient 5197471 5205279 5197471 secondary 5197471 5197471 5197471 e primary 5205112 5205112 5205112 Opt ECM Fan Blades amb 7 75 15 5B 9301932 amb 6 15 5B 9408191 amb 7 75 18 5B 9023761 Installation amp Service Manual Case Usage Case Size 6 Opt ECM Fan Blades cont sec 7 75 13 5B 9042245 sec 7 75 15 5B 8 75 22 5B 9040683 prim 8 75 20 5B Fan Guard ambient 5063030 T 8 Electronic Ballast canopy N6F 5966635 canopy N6FL 5991030 nose N6F 5991029 T 8 Lampholder 5232279 Light Switch 5100565 Electric Defrost Heater 3 case 9051634 1350 Watt Special Contactor for Defrost 5109383 amp w Aux Pilot Circuit 3 Pole 40A
8. NH Lo rd O Ma SS us daa 5 BLU BLU NH 3 LAMP 4 1 ee ee CT E TAP 5 RED REO BLK Um N o uJ rtc i 2 2 2 99 91512 5 062 eie FANS 5 SIM AMBIENT Gur I OPTIONAL 3 8 5 L 2 FANS PER 12 CASE TEMP THERMSTAT REMOTE BULB 15 OQ lt LOCATED IN a Ja FANS SHELF DISCHARGE m SECONDARY AIR STREAM lt AIR BAND z E 3 FANS PER 12 CASE DISCHARGE GRID SWEAT HEATER TOP SHELF DUCT ANT SWEAT HEATERS mN FANS PRIMARY AIR BAND 3 FANS PER 12 CASE J 208VAC n III T DEFROST HEATERS iJ AIT WALL 120VAC 60 2 SUPPLY 220VAC 50HZ NOTE ALL CASES MUST BE GROUNDED INTERNAT ONAL Page 14 March 2008 N6FL Domestic amp Export 50 Hz Case Circuits Gas Defrost m lt lt lt 2 ee OETA fh TzE LAME LAMP Df 5 CT E LAMP LU P 4 L AMP BALLAST 2 LAMP BALLAST DIAGRAM WRG HG DFR N6FL 6 amp 8FT 9037702 CANOPY LIGHTS 3 si 8
9. TYLER REFRIGERATION 12 5183536 3 5611559 2 5183536 8 9029422 9025224 9025316 9040223 9023800 9037333 9037342 9025476 5183536 6 9039270 9039020 9037551 6 9025833 8 9043402 4 9023841 5 5183536 15 9041326 8 5183536 16 9022463 9022464 9300244 9025833 24 5205439 6 5190028 5187950 February 2008 Installation amp Service Manual Item__ Description 6 8 12 31 Top Shelf Duct Joint 5629694 5629694 5629694 32 Screw 5205439 4 5205439 4 5205439 4 23 24 22 21 January 2005 Page 23 TYLER Page 24 February 2008 REFRIGERATION Operational Parts List Case Usage Domestic Export Electrical Circuit 115 Volt 60 Hertz 220 Volt 50 Hertz Case Size 6 8 12 8 12 Fan Motors ambient 5125532 5125532 5125532 5202538 5202538 5 Watt 5 Watt 5 Watt 5 Watt 5 Watt Secondary 5125532 5125532 5125532 5202538 5202538 5 Watt 5 Watt 5 Watt 5 Watt 5 Watt primary 9458944 9458944 9458944 9458942 9458942 23 Watt 23 Watt 23 Watt 18 3 Watt 18 3 Watt Fan Motor Brackets ambient 5120098 5213132 5120098 5120098 5120098 Secondary 5120098 5120098 5120098 5120098 5120098 primary 5205112 5205112 5205112 5205112 5205112 Fan Blades amb 7 75 22 5B 9040680 9040680 amb 6 27 5B 9023762 amb 7 75 20 5B 9023760 amb 6 30 5B e e 9023766 em sec
10. gt L T 83 46 1 2 SN Pam 0 95 5 27 N6F N6FL_FLOOR PLAN ALLOW 3 SPACE between the back of the case and store walls other cases or other coolers to minimize possible condensation problems FORCED VENTILATION could be necessary in some situations 8 or 12 Waste Outlet RorL 3 4 or6 DO NOT RUN LIQUID LINE INSIDE OF CASE ONE FLOOR DRAIN CAN SERVE 2 CASES 208 Volt circuit is required at the top of this case for the defrost contactor March 2008 Page 5 INSTALLATION PROCEDURES Carpentry Procedures Case Pull Up Locations All N6F models have four pull ups at each end of the case Pull ups A B C and D are located as shown and should be installed and tight ened starting with A and finishing with D See General UL NSF 85 Manual for line up assembly instructions Page 6 TYLER REFRIGERATION Electrical Procedures Electrical Considerations CAUTION Make sure all electrical connections at components and terminal blocks are tight This will prevent burning of electrical terminals and or premature component failure NOTE Lower raceway cover will be shipped loose See the General UL NSF I amp S Manual for raceway cover installation and removal instructions Since 208V defrost wiring enters the rear of the case through the outer air band the exterior and interior a
11. 5 amp 2 1 n 8 lt 2 gt a 5 e xi 19 DISCHARGE GRID ANTI I SWEAT HEATER CAN amma annnm TOP SHELF DUCT ANTI SWEAT HEATERS OPTIONAL SOLENOID FAN DELAY KL I XON OPEN 60F CLOSE 40F FANS PRIMARY AIR BAND 2 FANS PER 6 amp 8 CASES NOSE LIGHTS aJ O 84 7 8 LAMPS m FAN PANEL GROUND 7 gt O ee a A 2 pe 2 O OPTIONAL HOT GAS 1 NOTE c N TERMINATION 1 WHEN THERE 15 MORE THAN gt CASE IN A LINE UP THE KLIXONS Q OPENS di 40 F z WHEN USING OPEN ON RISE CONTACTS FAN DELAY KL I XON 120V 60HZ 1 AND 5 KLIXON 15 MOUNTED LOCATED AT R H END SUPPLY DAE dS rem He Seaman ge Eo L AT THE COMPRESSOR RACK THE EVAPORATOR COIL FRONT EP TO RACK gt CONTROL CIRCUITS March 2008 Page 11 w w s s s T 8 LIGHTS DEG FANS AMB ENT AIR BAND 2 FANS PER 12 CASES FANS SECONDARY AIR BAND 3 FANS PER 12 CASES OPTIONAL CASE TEMP THERMSTAT REMOTE BULB 15 LOCATED IN TOP SHELF DISCHARGE AIR STREAM CONNECT BRN WIRE QUICK CONNECT TO TAB ON BLK WIRE CONNECTOR TO PROVIDE POWER TO NOSE LIGHTS 030 ANGLES 1 DESCRIPTION REMO
12. 5 Canopy Hood Ptd 6 Hand Rail Backer 7 Hand Rail Bumper Retainer 8 Bumper Backer 9 Bumper 10 Color Band Backer Ptd 11 Color Band Painted 12 Bumper End Trim 13 Upr Fr Cladding Ptd N6F Front Cladding Ptd N6FL 14 Lwr Fr Cladding Ptd N6F only 15 Screw 16 Raceway Cover Backer 17 Raceway Cover End Trim 18 Metal Kickplate Ptd Kickplate Joint Trim Ptd Screw BIk 19 Shoulder Screw 20 Kickplate Support Assy 21 Raceway Cover Retainer Screw 22 Raceway Cover 23 Raceway Support 24 Screw 25 LH End Close off Painted RH End Close off Painted 26 Raceway 27 Screw Shoulder 28 Screws 29 Horizontal End Trim 30 Tray Joint Trim Page 22 e 5183536 3 5611559 2 5183536 8 9029422 9025222 9025316 9040223 9023795 9037331 9037340 9025644 5183536 4 9039268 9039020 9037551 5 9025833 6 9043402 3 9023841 3 5183536 9 7 w 9041326 4 5183536 8 9022463 9022464 9300242 9025833 12 5205439 4 5190028 5187950 g 5183536 3 5611559 2 5183536 8 9029422 9025223 9025316 color per order color per order color per order 9040223 9023798 color per order 9037332 9037341 9025475 5183536 4 color per order color per order 9039269 9039020 9037551 6 9025833 8 9043402 4 9023841 4 5183536 12 color per order 9041326 6 5183536 12 9022463 9022464 9300243 9025833 18 5205439 5 5190028 5187950
13. C TOP RACE WAY LI B8 LAMP CI 8 LAMP R I B8 LAMP 1 8 LAMPI Mf T 8 LAMP LI 8 LANP pr CANOPY LIGHTS 5t 259 i FANS o AMBIENT Bae AIR BAND 55 2 FANS PER 8 CASE FAN PER 6 CASE T OPTIONAL CASE TEMP THERMSTAT REMOTE BULB IS LOCATED IN 5 SHELF DISCHARGE AIR STREAM 9 AIR BAND 50 2 FANS 648 CASE 22 DISCHARGE GRID ANTI SWEAT HEATER OPT ONAL SOLENOID a T TOP SHELF DUCT ANTI SWEAT HEATERS M FANS E PRIMARY AIR BANO Lj 2 FANS PER 6 amp 8 CASE 5 m ALIE Ji Fi DEFROST HEATERS III F BLOCK iu FAN PANEL On E NOTE ALL CASES MUST BE GROUNDED 220VAC SOHZ INTERNAT ONAL March 2008 A 9037 00 LL Oo uJ uJ 2 x lt C lt 6FL 6 amp 8FT DESCRIPTION BIDECIMALS Page 13 lt LL EEJ uJ NOTE USE COPPER 208VAC 60HZ DEFROST LIMIT CONDUCTORS ONLY 220VAC_3PH SOHZ pee a S o SUP RED c N DEFROST qu CONTACTOR u SN IND 3 m e TERMINAL BLOCK O CONTROL PANEL C du O OZ o e ee ew TOP et Ss ale g Tau 3176 wo 139 n BLU BLU pra CE Perd O gl CELA T D a xm BLU B
14. See General UL NSF I amp S Manual 3 Remove mounting screws from top and bottom or upper cladding and remove upper cladding 4 After cleaning replace upper cladding and remaining components in reverse order Page 17 GENERAL INFORMATION NSF Product Thermometer Installation 1 Unwrap the thermometer and bracket assembly shipped loose with the case 2 Position bracket in front left corner of the left most bottom tray Making sure the bracket is flush with the left edge use the bracket holes as a template for where to drill the holes 3 Drill two 196 holes in the bottom tray NOTE For ease of installation position the washers and capnuts on the top side of the bracket and bottom tray i i 4 Mount the bracket to the bottom tray with two screws washers and capnuts Page 18 TYLER REFRIGERATION Night Curtains and Strip Doors Night curtains and strip doors are available from several souces They promote energy savings by partially closing off the front of the case TYLER does not promote these products but accepts that they are used by some Night curtains are to be pulled down each night They considerably cut the refrigeration load during the night by cycling the compres sor more frequently If gas or electric defrost occurs when the curtains are down a surplus of moisture laden air will be trapped in the refrigerated area and deposit on product F
15. could short out the anti sweat heater wire 5 Install inner honeycomb 8 and front molding 2 and secure with screws 1 6 Restore electrical power to the case Defrost Heater Replacement WARNING Always shut off electricity to the entire case before replacing a defrost heater Automatic cycling of fans or electrical power to wire ends could cause personal injury and or death January 2005 N6F N6FL 2 3 1 Remove bottom trays 1 from case 2 Disconnect defective defrost heater and remove from the defrost heater support 4 and case 2 4 Install new defrost heater 3 in reverse order 5 Restore electrical power to the case Ambient Air Filter Replacement Ambient air filters are located on top front of the case above each ambient fan Replace all ambient air filters at intial start up Routinely inspect and replace all ambient air filters 2 1 To remove and inspect the air filter slide out ambient air filter 1 from air filter retainer 2 Inspect the ambient air filter 2 To replace the air filter slide new ambient air filter 1 in the air filter retainer 2 Use 10 X24 X 1 fiberglass air filters NOTE Do not clean and or reuse old filters Poor ambient air flow will result Page 21 PARTS INFORMATION Cladding and Trim Parts List Item A Description 1 Screw per cover 2 Pull Up Angle Cover 3 Screw 4 Canopy Hood Joint Trim Ptd
16. for results obtained or damages incurred through application of or reliance on the data presented including but not limited to specific energy consumption with any particular model or installed application SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Page 4 March 2008 Installation amp Service Manual Defrost Data DURATION EPRSETTINGS DEFROST DEFROSTS TIME TERMINATION poo R404A WATER DEFROST PERDAY MIN TEMP F psie LB FT DAY RETE EZ ee NEM L 34 2225 60 1 10 17 825 Electronic Sensor is used for termination it should be set at 70 F termination temperature Set EPR to give this pressure at the case ELECTRIC DEFROST Requires a 3 Phase 208V supply for defrost heaters controlled by the defrost clock and breaker s at the machine panel a 3 pole contactor and defrost limit switch in each case Setting of the switch is 52 F GAS DEFROST Uses a limit thermostat along with a primary fan klixon which cycles the primary fans OFF above 60 F AMBIENT AIR BAND This case has a third air band which directs ambient air in front of the Air Screens to provide an extra barrier to warm air infiltration PRESSURE CONTOL SETTINGS Without Thermostat and Solenoid 13 Cut In 7 Cut Out With Thermostat and Solenoid 194 Cut In Os Cut Out OPTIONAL N6F CROSS SECTION N6FL CROSS SECTION um 45 1 8 48 112
17. 5638229 5058480 5217892 Electric Def Termination T stat Opt Case Temperature T stat Anti Sweat Heater Wire between sec prim air bands 5216522 0124216 5967100 in primary air band NSF Product Thermometer N6F NGFL Export 8 12 5063030 5063030 9322288 9322287 9322287 9322287 9322286 9322287 5232279 5232279 5100565 5100565 5209264 5209265 5109383 amp 5109383 amp 5109383 51093834 Domestic 8 12 9301932 9301932 9040683 9023763 5063030 5063030 5966635 5991030 5991030 5991030 5991029 5991030 5232279 5232279 5100565 5100565 9051633 9051632 1800 Watt 2900 Watt 5638229 5638229 5058480 5058480 5217892 5217892 5088067 5088068 5124216 5124217 5967100 5967100 5638229 5058480 5217892 5088691 5081147 5967100 5638229 5058480 5217892 5088692 5081148 5967100 For information operational parts listed above contact the TYLER Service Parts Department February 2008 Page 25
18. If electronic sensors are used in place of the klixons the sensors must be located in the same location as the klixons for that defrost type Any other locations will effect the refrigeration efficiency of the case N6F Optional Hot Gas Defrost Operation Requirements When reverse cycle gas defrosting option is used it should only be applied to multiple compressor systems Parallel racks A maxi mum of not more than 25 of the load ona January 2005 N6F N6FL given rack should defrost at one time because the defrosting cases become a condenser during the defrost period and the other refrigerated cases must provide enough heat load to keep a compressor operating Do not defrost more than 24 feet of the N6F at one time to limit the amount of refrigerant used in that circuit during the defrost Insulated partitions must be used between cases in the same lineup that have different defrost times Defrosts are initiated by a multi circuit defrost clock or an electronic defrost controller At the beginning of gas defrost the refrigeration is stopped and the gas is diverted a reverse direction through the suction line to the display case The refrigeration should be set to remain off for the complete failsafe time plus a 5 minute drain off or clear time period This type of defrost operation allows the problem areas in the case to completely clear without subjecting the refrigerated product to excessive warm up A defrost ter
19. VAPORATOR COIL RACK CONTROL CIRCUITS March 2008 Page 15 A AJY TOP RACE WAY 2 ET x x Dr UN BLU H gd CERTA Kata BLU edd EVE BL U BLU REFRIGERATION CORPORATION WHT ER 9057705 TE C5 O lt x C lt e NGFL 12FT 3 LAMP Co BALLAST h 2 8 tis a E o 5 3 Di CIF 3 5 i _ jax 27508 CANOPY LIGHTS 27528 RELEASE AIR BAND 2 FANS PER 12 CASES FANS SECONDARY OPTIONAL CASE TEMP THERMSTAT REMOTE BULB 15 LOCATED IN TOP SHELF DISCHARGE AIR STREAM OPTIONAL SOLENOID FANS TO PROVIDE POWER NOSE LIGHTS CONNECT BRN WIRE QUICK CONNECT TO TAB ON BLK WIRE CONNECTOR 030 ANGLES 1 DEG S DESCRIPTION AIR BAND 3 FANS PER 12 CASES REVISED HG SYMBOL o x z o a DISCHARGE GRID 5 HEATER TOP SHELF DUCT ANTI SWEAT HEATERS FAN DELAY OPEN 60F KL1XON CLOSE 40F FANS PRIMARY AIR BAND 3 FANS PER 12 CASES FAN DELAY KL i XON LOCATED AT R H END OF FROST COIL RA IU UL FRONT NID FAN PANEL GROUND Jade ny GRN
20. VED HO LAMPS REVISED HG SYM BORDER NAME DECIMALS 7 p c OPT ONAL SOLENOID m TOP SHELF DUCT ANTI SWEAT HEATERS FAN DELAY KL XON OPEN 60F CLOSE 40F FANS PRIMARY AIR BAND 3 FANS PER 12 CASES BALLAST ALL CASES MUST BE GROUNDED T 8 LAMPS BLUE PANEL we GRN l E Mica L T eee ne J L 2 3 OPTIONAL HOT GAS m DEFROST TERMINATION WHEN THERE 15 MORE THAN KLIXON CASE IN LINE UP THE KLIXONS Q OPENS 604 05 5 40 F I SHOULD BE CONNECTED IN PARALLEL CLOSES 60 F OPENS 40 F ae WHEN USING OPEN ON RISE CONTACTS FAN DELAY 120V 1 AND 3 KLIXON 15 MOUNTED LOCATED AT R H END SUPPLY CONNECT KLIXONS IN SERIES WHEN ON THE PIPE BETWEEN OF FROST COIL OR USING CLOSE ON RISE CONTACTS THE OISTRUGITOR AND ul 220VAC 50HZ 1 AND 2 TO CONTROL DEFROST TERM iE INTERNAT I ONAL T THE COMPRESSOR RACK ee FRONT TO RACK CONTROL CIRCUITS Page 12 March 2008 N6FL Domestic amp Export 50 Hz Case Circuits Electric Defrost 208VAC 3PH 60HZ OR NOTE USE COPPER CONDUCTORS ONLY DEFROST LIMIT 220VAC 3PH SOHZ THERMOSTAT SUPPLY CLOSE ON RISE DEFROST REO CONTACTOR TERMINAL BLOCK RED 1 OPEN ON RISE AUX CONTACT N
21. VICE INSTRUCTIONS See General UL NSF 1 5 Manual for T 8 lamp canopy ballast fan blade and motor and color band and bumper replacement instructions Ballast and Lighting Locations The canopy light ballasts are located under the canopy on the top of the canopy light channel The nose light ballasts are under the upper front cladding The canopy light s are under the canopy light channel in the top of the case The nose light s are behind the bumper retainer hand rail Page 19 Fan Locations Fan assemblies are located in three locations in the N6F and N6FL The primary fans 1 are located under the bottom trays and behind the primary condensing coil The secondary fans 2 are located on the top rear of the case in the secondary air band The ambient fans 3 are located on the top front of the case in the ambient air band The ambient fans are under the filters Checking Air Velocities NOTE Be sure area above the case is clear Conditioned air must circulate above the case for the ambient air band intake Do not block top ambient air band filter Check air velocities with an Alnor Jr Model 8100 Velometer with airscoop modification Further information on the Velometer can be obtained from the TYLER Service Department Page 20 TYLER REFRIGERATION N6F N6FL case air velocities should be as follows A S p Ambient Air 360 fpm Secondary Air 400 fom Primary Ai
22. ccess holes must be caulked to maintain air band separation Case Fan Circuit This circuit has three sets of fans primary secondary and ambient that are supplied by an uninterrupted protected 120V circuit The case fan circuit is not cycled except when equipped for gas defrost On gas defrost cases the primary fans are controlled by a 60 30 klixon NOTE With gas defrost the primary fans will not restart until the coil temperature reaches 30 F at the fan delay klixon Fluorescent Lamp Circuit The standard case lighting system is T 8 electronic lamps The N6F standard lighting is 2 row of horizontal canopy lights and 1 row of nose lights The N6FL standard lighting is 3 row of horizontal canopy lights February 2008 Installation amp Service Manual Defrost Information See General UL NSF 85 Manual for operational descriptions for each type of defrost control Defrost Control Chart Defrost Defrost Defrosts Duration Term Type Per Day Min Temp Electric 2 3 40 55 F Gas 3 4 22 25 60 F Front Frost Coil G Gas Defrost Fan Delay Use 70 F with electronic defrost sensor The diagram shows the location for each defrost type that uses a klixon NOTE The termination klixon 55 35 Settings for electric defrost is located in the right hand end of the upper electrical raceway The termination klixon for gas defrost is located next to the rear coil bypass check valve CAUTION
23. e shelf brackets from slots in rear uprights 5 After cleaning replace in reverse order Bottom Trays 1 Remove product from bottom of case 2 Grasp and lift out each of the bottom trays from the case interior 3 After cleaning replace in reverse order Front Air Ducts 1 Remove bottom trays see this page 2 Lift out front air duct sections 3 After cleaning replace in reverse order January 2005 N6F N6FL Discharge Air Honeycomb 1 Outer honeycomb ambient secondary remove screws and rear retainer plate Inner honeycomb primary loosen screws and slide rear retainer plate back until honeycomb grid sections can be removed NOTE Note position of the honeycomb grid during removal so it can be reinstalled the same way 2 Remove honeycomb grid sections from the outer and or inner top ducts CAUTION Improper installation of the honeycomb grid section could result in improper air flow and or poor refrigeration 3 After cleaning replace honeycomb grid sections as they were removed and secure with the rear retainer plates and screws Lower Cladding 1 Remove kickplate from kickplate supports See General UL NSF I amp S Manual 2 Remove mounting screws from top and bottom of lower cladding and remove lower cladding 3 After cleaning replace lower cladding in reverse order Upper Cladding 1 Remove lower cladding see above 2 Remove color band bumper and bumper retainer from case
24. ed on R22 and R404A refrigerant usage FOR SPECIFIC COMPRESSOR SIZING INFORMATION REFER TO TYLER APPLICATIONS FOR RACK SYSTEM COMPRESSORS AND OR THE COMPRESSOR MANUFACTURERS FOR SINGLE COMPRESSORS FOR LINE SIZING INFORMATION REFER TO THE MISCELLANEOUS SECTION BUFF IN THE TYLER SPECIFICATION GUIDE Electrical Data Fans 120 Volt Pusa TOTAL STANDARD FANS TOTAL ECM FANS EE CASE FANSPERCASE mmes wars ms sec sec mm T sec me mr N6F N6FL 6 2 2 1 200 0 68 0 34 165 60 4 302 1 44 0 220 11 0 os os ea eoa 1o osi eo 12 3 3 2 300 1 02 068 2478 905 604 1 59 0 66 044 66 0 330 22 0 Heaters 120 and 208 Volt TOTAL ANTI SWEATS 1 1 39 a 6 8 030 36 1 90 229 2596 5400 N FiNSFL 312 i os 5 253 455 8700 T 8 Lighting with Electronic Ballasts 120 Volt MAX LIGHTING PER ROW 3 ROWS E _ 6 042 075 NA 500 900 NA 042 500 147 1400 __ NeF 8 050 095 NA 600 40 NA 050 600 145 1740 Ner i2 070 140 NA 840 1680 NA 210 2520 6 1040 0 75 117 1 48 0 800 1400 NA 117 1400 L NerL s 145 eoo 140 1740 NA 145 1740 NeFL 12
25. erclock wise to lower the termination temperature One turn changes temperature setting approximately 5 F Page 8 Electrical Code Part 1 Section 28 208V defrost cir cuits employ No 10 AWG field wire leads for field connections On remote cases intended for end to end line ups bonding for ground may rely upon the pull up bolts The following wiring diagrams on pages 9 thru 16 will cover the N6F and N6FL case circuits with electric defrost and gas defrost The canopy lighting circuit is covered in the case Circuit diagrams February 2008 N6F Domestic amp Export 50 Hz Case Circuits Electric Defrost RI NOTE USE COPPER 208VAC CONDUCTORS ONLY FROST LIMIT 220VAG SPH 50HZ ME THERMOSTAT CLOSE ON RISE DEFROST i CONTACTOR 1 TERMINAL BLOCK OPEN ON RISE 9027247 DIAGRAM WRG ELEC DFR MAME 25JAN97 EH CK APPLY TO FINISHED PART AFTER TOP RACE WAY ARE IN INCHES UNLESS ED OTHERWISE THE INFORMATION ON THIS DRAWING ER REFRIGERATION CLAIMS RIGHTS T 8 LIGHTS z 1 DEG NONE sees ov f CANOPY LIGHTS FANS AMBIENT 2 BAND QUICK CONNECT 030 ANGLES TO TAB ON BLK WIRE CONNECTOR TO PROVIDE POWER TO NOSE LIGHTS TO TERMINAL 2 FANS PER B CASE 1 FAN PER 6 CASE FANS SECONDARY AIR BAND 2 FANS PER 648 CASE jl
26. lZ Carrier A United Technologies Company Installation amp Service Manual MULTI SHELF FROZEN FOOD MERCHANDISER Low Temperature Self Serve Display Cases This manual has been designed to be used in conjunction with the General UL NSF Installation amp Service Manual Save the Instructions in Both Manuals for Future Reference This merchandiser conforms to the American National Standard Institute amp NSF International Health and Sanitation standard ANSI NSF 7 2003 PRINTED IN Specifications subject to REPLACES ISSUE PART IN U S A change without notice EDITION 1 06 DATE 2 08 No 9037160 REV C Tyler Refrigeration Niles Michigan 49120 TYLER NGF NGFL REFRIGERATION CONTENTS Page_ Specifications N6F N6FL Specification Sheets 4 Pre installation Responsibilities See General UL NSF 1 5 Manual Installation Procedures Carpentry Procedures 6 Case Pull Up Locations 6 Electrical Procedures 6 Electrical Considerations 6 Case Fan Circuit ne en ee ns eR 6 Fluorescent Lamp Circuits 6 Plumbing Procedures See General UL NSF I amp S Manual Refrigeration Procedures See General UL NSF I amp S Manual Defrost Information
27. mination klixon type open on rise thermostat is mounted on the left hand side next to the rear coil check valve that bypasses defrost refrigerant flow around the expansion valve The defrost termination device along with the mechanical or electron ic defrost control should be set up to cycle or pulse the hot gas valve during the defrost time period If you use a mechanical clock you should wire it in parallel with the hot gas valve If the return liquid temperature rises to 70 F the hot gas valve should be closed until the return liquid temperature cools to 40 F and then the hot gas valve will reopen and provide additional heat This cycling will continue until the total defrost time has elapsed Note that the klixon type thermostat has a time lag associated with it s operation so its actual setting is 60 F but if an electronic sensor is used for termina tion it should be set at 70 F termination temperature because it is because it is faster reacting Also if used with an electronic controller cycle the hot gas valve when the lowest sensor temperature minimum has reached 70 F Page 7 In addition the primary air band fans on the N6F are cycled off during the defrost cycle with a limit klixon type thermostat that is mounted to a coil return bend on the right hand end of the case It will cycle the primary fans off at 60 F and on at 30 F This helps minimize the product temperature warmup duri
28. ng the defrost All other fans both secondary and ambient airband continue to run during defrost Electric Defrost Limit Switch Optional Case Temperature Thermostat DEFROST LIMIT SWITC SENSOR LOCATIONS TYLER REFRIGERATION When there is more than one case the control wiring must be modified as shown below This puts the fourth pole on the special contactor in a series circuit to the reset solenoid FOLLOW THESE INSTRUCTIONS EXACTLY Factory Wiring Factory Wiring to Remove Field Control Wiring Use 16 Ga ALL WIRING IN THE CASE NOT REPRESENTED FOR SIMPLICITY Terminal 4 Red Block in 3 Blue LAST CASE FIRST CASE IN BETWEEN CASES WIRING DIAGRAMS ELECTRICIAN NOTE OVERCURRENT PROTECTION 120V circuits should be protected by 15 or 20 Amp a devices per the requirements noted on the cabinet DEFROST CASE TEMP LIMIT THERMOSTAT i i i NOR aed ACE SENSOR nameplate or the National Electrical Code Canadian The Defrost Limit Switch and optional Case Temperature Thermostats are located in the top raceway with thier sensing bulbs in the primary air band The limit switch is factory preset for 52 F If defrost is too long the hermostat is set too high Adjusting the Defrost Limit Switch Remove the fiberboard 1 from the end of the control 2 Turn the brass adjustment screw 3 clockwise to raise or count
29. or this reason defrosts must be scheduled to occur when the case is open Plastic strip doors are permanently hung over the face of the case The ambient air band is disconnected and plugged during installation The refrigeration load reduction alters the system drastically The compressor and suction line become oversized and the need for defrost time and frequency are reduced Follow the suppliers recommenda tions for best results Case Shelving Information Case Shelving Limitations Low temperature multi shelf cases are particularly sensitive to air pattern changes These changes occur if shelves are not installed or used properly Four full rows of shelving must be used in this case The bottom row of shelving must be no more than 24 above the bottom tray Shelving can consist of four rows of 22 wide shelves or three rows of 22 wide shelves and one bottom row of 18 wide shelves Do not use any other shelving combinations February 2008 Installation amp Service Manual Shelf Loading Observe all the LOAD LINE stickers when stocking the shelves with product Do not let the product spill over or go beyond these lines Do not let the product cover up or block any of the air ducts CAUTION Use of large signage can interfere with the proper air movement in the case Improper air movement will alter the case temperature and could cause product loss February 2008 N6F N6FL SER
30. r 600 fom Cleaning Honeycomb The inner honeycomb primary should not require cleaning The outer honeycomb ambient secondary will require cleaning How often will depend on the amount of dust and lint in the store air Need for cleaning can be determined by comparing clean honeycomb air velocities with what velocities are being produced when they are checked See page 17 in this manual for cleaning instructions Anti Sweat Heater Replacement WARNING Always shut off electricity to the entire case before replacing an anti sweat heater Electrical power to wire ends could cause personal injury and or death NOTE Anti sweat heater wires will be still be attached Tag and cut wires to remove front molding February 2008 Installation amp Service Manual lj 1 MU a 4 j B 27 4 a 5 pA s 1 Remove the screws 1 and front molding 2 and inner honeycomb 3 from the interior top of the case 2 Tag and cut defective anti sweat wire 4 and remove aluminum tape and wire from front molding 2 Discard aluminum tape 3 Install new anti sweat wire 4 in grooves in front molding 2 and cover with new aluminum tape 4 Splice the anti sweat heater wire 4 to wire leads from the case CAUTION Make sure wire leads do not get pinched by the front molding during installation Pinched wires
31. te DISCHARGE GRID ANT I SWEAT HEATER OPTIONAL CASE TEMP THERMSTAT 5 x DECIMALS REMOTE BULB 15 LOCATED IN TOP SHELF DISCHARGE AIR STREAM WIRED THE CLOSE ON RISE THERMOSTAT BRN WIRE OPTIONAL SOLENOID TOP SHELF DUCT ANTI SWEAT HEATERS M FANS PRIMARY AIR BAND z 22 CF 2 FANS PER 6 amp 8 CASE NOSE LIGHTS 2 LAMP BALLAST ALL CASES MUST BE GROUNDED e EL H DEFROST HEATERS fM Mi 5 AU E NOTE 120v 60HZ SUPPLY OR 220VAC SOHZ INTERNAT I ONAL March 2008 Page 9 ERING USE GLY 15 INOTE USE COPPER CONDUCTORS ONLY 208VAC 3PH GOHZ DEFROST LIMIT OR THERMOSTAT aii SPH CLOSE ON RISE b PPLY RED DEFROST __ CONTACTOR 2 4 TERMINAL BLOCK ON CONTROL PANEL um EAD m s GENE s GENE s x G aa s GQ Qa ee j 9027248 ME Li c O L I OF lt x 5 lt a 88 2 gt N6F 12FT LIGHTS 297 002 50160 Saal tz 0ch o I soc gt O I wed z 2 2 x26 2 ANOPY LIGHTS gt _ _ O 3 0 i Ow ae lo f 119 zxo x FANS O pti ele AME ENT E alz AIR BAND m 99
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