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4. HUSSMANAM W 0 UU Tu v LISTED LBN Low Temperature Horizontal Merchandiser Installation amp Service Manual A ce VI et QW aert P N 0514392 F e cot Ww October 2013 e ee NM ger Spanish 0531293 French 0531294 P N 0514392_F iii ATTENTION Merchandiser must operate for 24 hours before loading product Regularly check merchandiser temperatures Do not break the cold chain Keep products in cooler before loading into merchandiser These merchandisers are designed for pre frozen products only IMPORTANT KEEP IN STORE FOR FUTURE REFERENCE Quality that sets industry standards Ed Uu RS ES m n n n 12999 St Charles Rock Road Bridgeton MO 63044 2483 U S amp Canada 1 800 922 1919 Mexico 1 800 890 2900 www hussmann com 2013 Hussmann Corporation TABLE OF CONTENTS ANSI DEFINITIONS Vi INSTALLATION Certification 1 1 Hussmann Product Control 1 1 Shipping Damage 1 1 EEN EE u sa sau ER 1 1 Self Contained Location 1 2 Model Description 1 3 Unloading nunen 1 3 Exterior Loading 1 3 Shipping Skid 1 3 Merchandiser Leveling 1 4 COMPIL us ouo KEE e EE 1 4 Optional Legs 1 4 Serial Plate Location 1 4 Refrigeration Unit Access 1 5 Drain Trap 2 cs enn ca
5. Short on refrigerant P N 0514392 F SOLUTION Leak check change drier evacuate and recharge Replace Clean Blow oil out of evaporator 1 Relocate cabinet 2 Clean condenser to remove air flow restriction 3 Replace 4 Leak check change drier evacuate and recharge Reset control Leak check replace drier evacuate and recharge Relocate Change drier evacuate and recharge Check power Clean Replace Assure proper length in tube install sensor at correct location Leak check change drier evacuate and recharge U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515275 F PROBLEM Compressor runs continuously product too cold Compressor will not start no noise Compressor will not start cuts out on overload Low suction pressure Low head pressure HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A PROBABLE CAUSE Defective control Power relay Control feeler not in tube properly Short on refrigerant Blown fuse or breaker Defective or broken wiring Defective overload Defective temperature control Power disconnected Low voltage Defective compressor Defective relay Restriction or moisture Inadequate air condenser Defective condenser fan motor CRO not set properly CPR not set properly 5 5 SOLUTION Replace Assure proper length in
6. gilvaH 1109 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A ONINHVM dGL G VINAN 8 E JH ZH 09 AG bL uc i u 9 Ng H v c ME um Brakes omg E LS JOHINO KEIER 9 NH NYJ d Sei GEET HASNSGNOO y N81 xog 10313 n ya E AINO f re 8 ZN 1 31VSN3QNOO LLNV E Q31 LIM IWNOILdO 18 48 H H EC ei x S e YSIVSH QN3 HH do S H3lV3H QN3 H I H H3lV3H SSv19 LNOH3 x aa U o ov 69 JUL V a C JVLSONWH3H 1S0H33Q d d OD 3HL 1g H QN33HL H 440 dVO M M 440 dVO u Md HN 4 d ag Kidd s E Iddns MEX dddnS H3MOd H3MOd 18 H3MOd ees lH H dV dv X8 uas E Bana ani ddluvis Aa vous P 8 7NH I yg 3unixidiHOr HOS L 82 9 v NHI LBN Horizontal Merchandisers APPENDIX A WIRING DIAGRAMS A 8 AH Up eDuejio O uwolg 2g SIUM M 39018 Mg enig 1g usah MOJ A A POY H pepunolb ad 1snuJ JesipueuoJeuuJ eui pue punojJD eoiueuoeuJ SACU ISNW sjueuoduuoo v
7. O SE O O amp Safe NET III Control 4 1 Position TEMPERATURE ADJUSTMENT 1 Rotate the adjustment knob counter clock wise for a warmer setpoint or clockwise for a colder setpoint 2 While adjusting the temperature the display shows the setpoint cut out value A few seconds after the temperature is set the controller reverts to the sensed temperature in the merchandiser HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HUSSmann 2 9 Display at Full Cold Model LBN Display at 1 Position Model LBN 3 To verify merchandiser settings turn the dial to warm and cold as shown above Output readings should be within one degree of the temperatures shown above LBN Horizontal Merchandisers 2 10 ELECTRICAL REFRIGERATION Dual Temperature Safe NET Iii 4 O S HUSSmann Ou O 9 Safe NET Control OFF Position Set at Full Cold Position Sate NET Iii 4 O S 5 HUSSMANN O O amp Safe NET III Control 4 1 Position DUAL TEMPERATURE ADJUSTMENT 1 Rotate the adjustment knob counter clock wise for a warmer setpoint or clockwise for a colder setpoint 2 While adjusting the temperature the display shows the setpoint cut out value A few seconds after the temperature is set the controller reverts to the sensed temperature in the merchandiser P N 0514392 F E 9 S Display at Full Cold Model LBN
8. Compressor Band Must Be Cut Except for LBN 4 P N 0514392 F OPTIONAL LEGS NSF approved legs replace the leg levelers if required by local health codes The legs raise the case 6 inches for cleaning purposes An optional skirt kit can be provided to snap on the legs SERIAL PLATE LOCATION The serial plate 1s located on the left hand end of the case interior and a second one in the condensing unit compartment The serial plate contains all pertinent refrigeration and electri cal information The serial plate should not be removed for any reason Serial Plate Location U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0514392_F 1 5 REFRIGERATION UNIT ACCESS DRAIN TRAP The louvered access panel on the lower right Drain Trap may be accessed by removing the front of the cabinet provides access to the rear access panel that covers the rear of the condensing unit and electrical box compressor compartment The drain trap should be filled with water This prevents warm air from migrating back through the drain to the evaporator coil Failure to fill the trap with water could result in excessive frosting of the evaporator coil Access onl For the LBN 10 the back panel 1s a wire grille BEEN M i which allows discharge atr to flow through the condensing unit compartment Before removing this panel make sure the power supply to the There is alo a rear access panel that covers the cabi
9. WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392_F START UP OPERATION START UP ELECTROMECHANICAL CONTROL Follow the electromechanical controls start up procedures as detailed in Section 2 of this manual Each self contained merchandiser has its own evaporator coil LBN models have capillary tubes a Check the interior cabinet thoroughly for loose nuts bolts and electrical connec tions b Inspect the refrigeration lines for visible damage or chafing c Replace electrical box cover and access panel d Turn on the electrical power power switch and start the merchandiser The merchan diser must pull down in temperature ATTENTION INSTALLER COMPRESSOR Cut the steel band which holds down the compressor during shipment The compressor should now float freely on the mounting springs DO NOT LOOS EN NUTS LBN 4 HAS No COMPRESSOR BAND NOTE Failure to cut compressor shipment band may result In excessive noise or system damage which is not covered by warranty CONTROLS and ADJUSTMENTS All Controls Refrigeration Defrost Controls Controls Product Application LBN 4 6 7 8 Remote and Self Contained Low Temp LBN 10 Remote and Self Contained Low Temp Allow merchandiser 24 hours to operate before loading product
10. s serial plate The merchan diser refrigeration piping 1s leak tested The unit is charged with refrigerant and shipped from the factory with all service valves open LBN 6 7 8 and 10 models have a refrigeration system that uses a semi hermetic compressor LBN 4 uses a hermetic compressor LBN systems use a capillary tube for refriger ant control The capillary tube is soldered to the suction line pull out coil for proper heat exchange If the capillary should become plugged or damaged it is best to replace the heat exchanger REFRIGERATION Remote Models Refrigeration temperature 1s controlled by a factory installed thermostat The thermostat controls a liquid line solenoid valve not provid ed with the merchandiser The thermostat energizes the valve as the temperature rises A pump down system is recommended for outdoor condensing units N CAUTION Refrigeration lines are under pressure Refrigerant must be recovered before attempting any connection or repair a cord and plug of the same type P N 0514392 F U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392 F LINE SIZING Remote Models Refrigerant line connections are made at the right end of merchandiser facing front beneath the refrigerated display area The refrigerant line connection size is 8 in The suction line is 8 in Refrigerant lines should be sized as shown on the refrigeration legend that 1
11. P N 0514392 F SASS IOS ISIS ISIS III III PE Con AAA SOF ITI I IOI IOI ESTE NA Si vA NS Ng ZS 69 Qo d AN cen ZS 69 Qo d AN ds oS LA 4 Ki Ka 9 e te Ka Ke AN To obtain warranty information SCH Ex or other support contact your Koa Gi Hussmann representative Q0 6S Please include the model and AS Ex serial number of the product QU e E Ee E Q ei Ee K i Bri issouri e x Hussmann Corporation Corporate Headquarters Bridgeton Missouri U S A 63044 2483 01 October 2012 wl e Wen bannt agebett E LA ik Ei Ly Ly L ih db L alb ih ab Aa C Aa e e Nh q uh Pape Nah ap oh q a Et ee Ah ape Nh Pape a Fai a SEN oes CAN Oo OE NLS CAN LEN CAN LEN CAN CAN 2 s CRIS Hussmann Corporation 12999 St Charles Rock Road Bridgeton MO 63044 2483 www hussmann com
12. contains the Safe NET III control board The Safe NET III digital display compressor defrost power relays and the power switch For the optional electromechanical control the electrical box contains the electromechan ical thermostat defrost clock and the power switch The box is capable of sliding out for servicing convenience Access Is gained by removing the cover on the side of the box LBN Horizontal Merchandisers 2 2 ELECTRICAL REFRIGERATION ELECTRICAL OUTLET Before the merchandiser is connected to any wall circuit use a voltmeter to check that the outlet is at 100 of the rated voltage The wall circuit must be dedicated for the merchandis er Failure to do so voids the warranty Do not use an extension cord Never plug in more than one merchandiser per electrical circuit Always use a dedicated circuit with the amperage stated on the unit Plug into an outlet designed for the plug Do not overload the circuit Do not use long or thin extension cords Never use adapters f in doubt call an electrician NEMA 5 15R Receptacle All Models Except LBN 10 NEMA 6 15R Receptacle LBN 10 AN WARNING Risk of Electric Shock If cord or plug becomes damaged replace only with REFRIGERATION Self Contained Models Each self contained model 1s equipped with its own condensing unit and control panel located beneath the display area The correct type of refrigerant will be stamped on each merchandiser
13. 1 The T stat controller controls refrigeration temperature This is factory installed in the control panel HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Defrost Frequency per day Failsafe Time Minutes Type of Temp Defrost Termination EHENEN Defrosts are time initiated and temperature terminated for self contained and remote The defrost setting 1s factory set as shown above 1 Every 48 Hours LBN Horizontal Merchandisers 3 2 START UP OPERATION LOAD LIMITS Each merchandiser has a load limit decal Shelf life of perishables will be short if load limit 1s violated LOAD LIMIT AT NO TIME SHOULD MERCHANDISERS BE STOCKED BEYOND THE LOAD LIMITS INDICATED DO NOT BLOCK AIR GRILLE STOCKING Product should NOT be placed inside the merchandisers until merchandisers are at proper operating temperature Allow merchandiser 24 hours to operate before loading product Proper rotation of product during stocking is necessary to prevent product loss Always bring the oldest product to the front and set the newest to the back AIR DISCHARGE FLUES MUST REMAIN OPEN AND FREE OF OBSTRUCTION AT ALL TIMES to provide proper refrigeration and air curtain perfor mance Do not allow product packages signs etc to block the grille Do not use non ap proved shelving baskets display racks or any accessory that could hamper air curtain per formance Do not allow product to be placed ou
14. CORPORATION e BRIDGETON MO 63044 2483 U S A 24 hours LBN 10 48 hours LBN 4 6 7 8 S HUSSMANN Time to Subsequent Defrost 24 hours LBN 10 48 hours LBN 4 6 7 8 Pulldown After Defrost Compressor ON Maximum Defrost Time 40 Minutes Failsafe Defrost Cycle Terminates at 48 F GREEN REFRIGERATION YELLOW DEFROST RED ALARM DISPLAY 3 The compressor will continue to run until it reaches its cut out temperature Pulldown 4 The refrigeration cycle will continue for the next subsequent scheduled 6 hours or demand defrost The digital display will display the temperature reading for 10 minutes after defrost 24 hours for LBN 10 and 48 hours for LBN 4 6 7 8 5 The above process will repeat steps 3 and 4 until the power 15 interrupted 6 If power stops the process will start over at step 1 and the time to subsequent defrost will reset LBN Horizontal Merchandisers 2 8 ELECTRICAL REFRIGERATION TEMPERATURE ADJUSTMENT Rotate the adjustment knob counter clockwise for a warmer setpoint or clockwise for a colder setpoint While the temperature is being adjusted the optional display shows the setpoint cut out value A few seconds after the temperature is set the display reverts to showing the sensed temperature in the mer chandiser ALARMS AND CODES FLASHING TEMPERATURE OR SENSOR ALARM LED El or E2 If the Temperature or Sensor Alarm LED red on the controller
15. Display at 1 Position Model LBN 3 To verify merchandiser settings turn the dial to warm and cold as shown above Output readings should be within one degree of the temperatures shown above U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392_F Typical Sensor to Control Configuration Black Air Yellow Sheath Evaporator Sensor Defrost Termination Black Evap Evaporator Sensor Defrost Term GE See i l Display inserted into the Evaporator Fins or into the Suction Line A White Yellow Sheath ei Common for lll p di Both Sensors eec Yellow Sensor Defrost Termination Evaporator i Black Sensor Control Air S Control Sensor Black Sheath Black Air Sensor 8 Black Evaporator Sensor 9 lt 11 Not Useq White A Common EN Both Sensors 10 prd Detail A HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A LBN Horizontal Merchandisers 2 12 ELECTROMECHANICAL CONTROLS To access the defrost time clock remove the front access panel and remove the electrical box cover Time Arrow FW m w kb Sh Sg The clock has screws that initiate defrost according to the time of day The failsafe set ting sets the length of defrost from two min utes to 110 minutes To ensure a through defrost it may be neces sary to increase the failsafe time in high ambi ent conditions The time arrow must be set
16. Mark the pressure on the gauge and leave it returning 24 hours later Note the pressure If it has fallen more than 150 200 psig then the system may have an internal leak If it only drops a small amount this does not mean that you have an internal leak but that the gas in the cabinet 1s cooler and has reduced its pressure because of this If the cabinet has an internal leak contact the nearest Hussmann distributor or the factory to receive authorization to return the cabinet to the factory NO MERCHANDISER WILL BE ACCEPTED AT THE FACTORY WITHOUT A LETTER OF AUTHORIZA TION FOR RETURN U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com APPENDIX A TECHNICAL DATA A 1 Hussmann refrigerated merchandisers configured for sale for use in the United States meet or Surpass the requirements of the DOE 2012 energy efficiency standards DOE 2012 Energy Efficiency Compliant Item Part Description Item Part Description LBN 4 LBN 6 LBN 7 LBN 8 LBN 10 LBN 4 LBN 6 LBN 7 LBN 8 LBN 10 Thermostat HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A THERMOSTATS amp POWER PLUG LBN 4 Electromechanical Option HE 4850853 Defrost Heater CT 048035 Refrigeration Thermostat HE 4850944 Nose Heater SW 4440541 Power Switch GL 4990294 Front Glass Pack with Heater EP 4481948 Power Cord all models except LBN 10 LBN 6 HE 4850855 Defrost Heater EP 4441450 Power Cord LBN 10 HE 4850914 Nose Hea
17. lid tracks must be cleaned periodically to allow the lids to close freely N WARNING SHUT FANS OFF DURING CLEANING PROCESS HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 4 3 Manually defrost cabinet as usage dictates The LBN series are gravity cooled cabinets The sidewalls have refrigeration tubing in them to cool the lower portion of the interior and there is an upper evaporator that drops cold air down onto the product The upper coil is equipped with defrost heaters that defrost the coil The side walls of the cabinet will build up frost and ice on them over time and do need to be manually defrosted as usage and build up demands CLEANING EVAPORATION PAN The condensate water outlet for self contained models empties into a limited capacity evapo ration pan Debris or dirt accumulation inside the condensate evaporation pan will reduce the pan s evapora tion capacity Remove accumulated debris from the evapora tion pan Water introduced during cleaning will cause the evaporation pan to overflow ee P A CAUTION Always Wear gloves and protective eye wear when servicing Turn off evaporation pan heater and allow pan to cool LBN Horizontal Merchandisers 4 4 MAINTENANCE CLEANING STAINLESS STEEL SURFACES Use non abrasive cleaning materials and always polish with grain of the steel Use warm water or add a mild detergent to the water and Do NOT use HOT water on Cold glass Surfaces
18. to the correct time of day Turn the knob until the appropriate time on the wheel lines up with the time arrow AN WARNING LOCK OUT TAG OUT To avoid serious injury or death from electri cal shock always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component This includes but is not limited to such items as doors lights fans heaters and thermostats P N 0514392 F ELECTRICAL REFRIGERATION CRANKCASE PRESSURE REGULATOR The LBN series employs a crankcase pressure regulator in the same suction line and is con sidered part of the heat exchanger The CPR is set to 10 psig The purpose of the valve 1s to maintain a low suction pressure on start up so that the compressor will start properly On start up the valve will hold the suction pressure at the desired setting until the suction pressure has dropped below the setting then the valve will open If it becomes necessary to check or reset the setting the merchandiser must be warm such as after a defrost cycle or from an initial warm interior cabinet condition Put a suction compound gauge on the com pressor suction valve Start the compressor If the pressure needs to be reduced turn the adjustment screw clockwise to raise the pres sure Do not set the valve based on the serial plate amperage rating because the pressure setting will be too high and the compressor will not Start properly
19. 00 522 1900 e www hussmann com P N 0514392 F LED FIXTURE REPLACEMENT Follow the same steps previously described for fluorescent lamps to remove LED fixtures However the protective shield does not need to be removed from the LED fixture It is inte grated into the fixture and 1s replaced along with the new LED fixture REPLACING LED POWER SUPPLIES LED power supplies are located in the light fixture as well Remove the mirror reflector to access the power supply connections FRONT GLASS HEATER REPLACEMENT The front glass heater 1s built as part of the glass assembly The purpose of the heater 1s to keep the aluminum trim surrounding the glass free of condensation If the cabinet is located in a high humidity environment the center of the glass may have a trace of condensation across It To replace the glass assembly 1 Disconnect power to the cabinet Remove the cabinet top by removing the screws that hold it into the back of the cabinet and on each end 2 Lift the top off the cabinet 3 Remove the lids 4 Remove the screws holding the backs of the lid tracks to the galvanized sub top and the screws holding the center tracks to the aluminum rail on top of the front glass 5 Remove the plastic arm trim breakers in the end aluminum trim pieces to expose the HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 5 3 screws in them Remove screws and remove end trim 6 Remove the trim from the top o
20. 2 F U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392_F 2 7 SEQUENCE OF OPERATION Compressor Starts V LBN Dual Temperature Time to Subsequent Defrost Initial Defrost Two Hours After Start Up Pull down Compressor On Compressor runs Refrigeration Cycle continuously until it reaches its cut out setting Maximum Defrost Time 40 Minutes Failsafe Defrost cycle is temperature terminated Defrost initiates two hours after start up Compressor When powered up there will Starts be a delay of 30 sec at start up before the compressor starts ON A SEED Start Up Compressor Off Cycle Safe NET Ili GREEN REFRIGERATION YELLOW DEFROST RED ALARM OFF POSITION Safe Net III Controller 1 Apply power to the merchandiser Wait for the self check to complete During the self check each LED flashes for one second and then all LEDs turn on for two seconds If the LEDs do not flash make sure the adjustment knob is not in the OFF position 1A The merchandiser temperature displays at startup The initial defrost starts two hours later The display will show the temperature at the start of defrost This reading will remain displayed during defrost and until it times out even though the refrigeration mode has been initiated The green LED will be lit 2 The compressor will start after a 1 minute delay once power 1s applied HUSSMANN
21. 275 F PROBLEM SOLUTION Allow lamps to warm up fluorescent Check lamp sleeves for cracks fluorescent Lights flicker Check sockets for moisture and proper contact all Bulb replacement may be necessary all Check voltage all New bulbs tend to flicker until used fluorescent LBN ACCESSORIES AND OPTIONS The following 1s a description of the various accessories available for the LBN Bag Rack A big rack can be provided to store various size checkout bags The rack attaches to the back of the cabinet Caster Kit If the cabinet needs to be moved quite often or for additional health code regulations the caster kit raises the cabinet approximately 4 2 inches The wheel of the caster 1s 3 inches Counter Top The metal counter top is stan dard and a 16 in and 20 In wooden counter top can be provided The 16 in wooden count er top mounts flush with the back of the cabi net Dial Thermometer The cabinet can be pro vided with a two inch dial thermometer rather than the standard pencil type thermometer THIS MUST BE FACTORY INSTALLED It 1s locat ed in the left end of the upper stainless steel reflector above the light fixture Electromechanical Controls includes thermostat and defrost timer LED Lights similar lighting distribution when comparted to fluorescent and reduced energy consumption Lid Lock Kit For product security a lid lock kit cab be provided Ea
22. 92_F 5 1 SERVICE DEFROST THERMOSTAT REPLACEMENT The defrost thermostat 1s located on its mount ing plate at the right end of the evaporator coil attached to the air scoop The air scoop is a right angle piece of metal running in front of the evaporator behind the nose screen The thermostat 1s a bi metal thermostat that 1s tied in series with the defrost time clock solenoid to end defrost when the temperature has been satisfied 85 F To Replace Defrost Thermostat 1 If it is determined that the defrost thermostat needs to be replaced disconnect electrical power to the merchandiser 2 Remove the nose screen from in front of the evaporator 3 Remove the stainless steel mirror reflector over the light fixture 4 Refer to the wiring diagram for thermostat wiring terminations and disconnect 5 Remove the air scoop located in front of the evaporator coil and the defrost thermo stat mounting plate attached to it Remove the thermostat and disconnect wires 6 Reverse this procedure to reinstall the new thermostat N WARNING LOCK OUT TAG OUT To avoid serious injury or death from electri cal shock always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component This includes but is not limited to such items as doors lights fans heaters and thermostats HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A The last length to go unde
23. ING The OFF Position does not disconnect line voltage to the case refrigeration unit fan 2 Wait for the self check to complete During the self check each LED flashes for one second then all LEDs turn on for two seconds If the LEDs do not flash make sure the adjustment knob is not In the Off position After the self check all LEDs turn off until the compressor starts There may be a delay before the compressor starts If the red Temperature or Sensor Alarm LED stays on after the self check The green Compressor Powered On LED turns on when the compressor starts NOTE Do NOT load product until AFTER merchandiser operates for 24 hours and reaches desired operating temperature AN WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area LBN Horizontal Merchandisers 2 6 ELECTRICAL REFRIGERATION SEQUENCE OF OPERATION LBN Compressor Starts Time to Subsequent Defrost Initial Defrost 24 hours LBN 10 Time to Subsequent Defrost Two Hours After Start Up 48 hours LBN 4 6 7 8 Mane e a Pull down Compressor On Compressor runs Refrigeration Cycle Pulldown After Defrost continuously until it Compressor ON reaches its cut out setting Maximum Defrost Maximum Defrost Time 40 Minutes Time 40 Minutes Failsafe Failsafe Defrost cycle is temperature Defrost Cycle terminated Defrost initiates Terminates at two hours after start up 48 F Compressor Wh
24. ON 2 ila OUTLET 5 1 4 54 30 7 8 784 26 660 ELECTRICAL 2 3 3 8 51 BOX 86 Ge H 3 4 248 L LBN 8 Shown L 48 1 2 72 84 1 4 95 5 8 118 7 8 P N 0514392 E U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392 F REFRIGERATION DATA LBN 4 LBN 6 LBN 7 LBN 8 LBN 10 Thermostat Setting CIJCO F Electromechanical 2 00 to 3 00 positions F 12 F Position 1 5 F 5 F 7 18 F 28 F Safe NET III Compressor hp LBN 4 LBN 6 1 2 hp LBN 7 3 4 hp LBN LBN 10 1 hp Condensing Unit Capacity LBN 4 LBN 6 3330 LBN 7 3600 LBN LBN 10 5400 at 25 F evaporator and 110 F condenser temperature Btu hr at standard ASHRAE LBP rating conditions Note This data 1s based on store temperature and humidity that does not exceed 75 F and 559 R H unless otherwise stated Schedule defrost at night while lights are off HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A A 5 DEFROST DATA Frequency hr LBN 4 6 7 8 48 LBN 10 24 OFFTIME Failsafe minutes All models 40 Defrost Termination Temperature Terminated Refrigerant Charge LBN 4 LBN 6 LBN7 2360027 LBNS 3702 LBN 10 35 oz 3 oz 30 oz 0 878 kg 0 856 kg 1 026 kg 1 047 kg 1 000 kg uH 15 3 4 400 ER 38 3 4 984 30 1 8 765 30 7 8 784 32 7 3 835 Dimensions shown as inches and mm LBN Horizontal Merchandis
25. T Use eAbrasive cleansers and scouring pads as these will mar the finish Coarse paper towels on coated glass eAmmonia based cleaners on acrylic parts eSolvent oil or acidic based cleaners on any interior surfaces Do not use high pressure water hoses N WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Do Disconnect electrical power before cleaning Remove the product and all loose debris to avoid clogging the waste outlet eStore product in a refrigerated area such as a cooler Remove only as much product as can be taken to the cooler in a timely manner horoughly clean all surfaces with soap and hot water DO NOT USE STEAM OR HIGH WATER PRESSURE HOSES TO WASH THE INTERIOR THESE WILL DESTROY THE MERCHANDISERS SEALING CAUSING LEAKS AND POOR PERFORMANCE Lift hinged fan plenum for cleaning Hook chain in rear panel to secure plenum during cleaning BE SURE TO REPOSITION THE FAN PLE NUM AFTER CLEANING MERCHANDISER ake care to minimize direct contact between N WARNING Do NOT allow cleaning agent or cloth to contact food product fan motors and cleaning or rinse water Do NOT flood merchandiser with water NEVER INTRODUCE WATER FASTER THAN THE WASTE OUTLET CAN REMOVE IT SELF CONTAINED MODELS EMPTY INTO AN EVAPORATION PAN THAT WILL OVERFLOW IF TOO MUCH WATER IS INTRODUCED D
26. URING CLEANING WATER FROM EVAPORATOR COIL ONLY Allow merchandisers to dry before resuming operation LBN Horizontal Merchandisers 4 2 MAINTENANCE N WARNING LOCK OUT TAG OUT To avoid serious injury or death from electri cal shock always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component This includes but ts not limited to such items as doors lights fans heaters and thermostats CLEANING DISCHARGE AIR GRILLE Discharge air air grilles should be cleaned every six months Dirty air grilles will cause merchandisers to perform poorly The air grilles may be cleaned with a vacuum cleaner Soap and water may be used if all water is removed from the air grilles cells before replacing Be careful not to damage the air grilles CLEANING SOLAR THERMOMETER LBN models have solar thermometers The thermometer Is located at the top front center of the merchandiser s cabinet interior To clean the thermometer 1 Remove the two screws securing the ther mometer to its mounting bracket Remove the sensing element from the clip 2 Use non abrasive cleaning materials and a mild detergent to clean thermometer 3 Be sure to wipe the element clean of any residues P N 0514392 F CAUTION DO NOT FLOOD Use only enough water necessary to clean surface Water must not drip down the case Never use ammonia based cleansers abrasive cl
27. and display 1s flashing a temperature sensor has failed The display shows El if the case sensor has failed or E2 if HUSSmann the evaporator sensor has failed If the merchandiser sensor fails refrigeration will run continuously Turn off or repeat a duty cycle of a few minutes on and a few minutes off P N 0514392 F DEFROST TERMINATION SWITCH Merchandisers may use a defrost termination switch instead of an evaporator sensor to terminate a defrost cycle The defrost termination switch 1s temperature activated and senses the completion of defrost Compressor Compressor Off Time If On Time If Sensor Failed Sensor Failed SE s On Compressor Status Off On Off On Off Time MANUAL DEFROST a Note Du o This procedure initiates a N manual or forced defrost Ze Cold 1 Note location of knob setting N Rotate knob fully counterclockwise until it stops full warm OFF position 7 Warm Cold 3 After 10 seconds but before 20 seconds rotate knob fully clockwise until it stops full cold position IMPORTANT Return the control knob to its original setting Step 1 once the manual defrost has been initiated U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392_F Safe NET Iii 4 O SE 5 HUSSMANN O O 9 Safe NET III Control OFF Position Set at Full Cold Position Cut out Warm Cut out Cold Safe NET Iii 4
28. apply with a cloth Always wipe rails dry after This can cause the glass to shatter and could wetting result in personal injury Allow glass fronts to warm before applying hot water AN WARNING Use alkaline chlorinated or non chlorine containing cleaners such as window cleaners and mild detergents Do not use cleaners containing salts as this may cause pitting and rusting of the stainless steel finish Do not use bleach REMOVING SCRATCHES FROM BUMPER Most scratches and dings can be removed using the following procedure 1 Use steel wool to smooth out the surface area of the bumper 2 Clean area 3 Apply vinyl or car wax and polish surface for a smooth glossy finish PRECAUTION CLEANING PRECAUTIONS When Cleaning Do not use high pressure water hoses e Do not introduce water faster than waste outlet can drain e NEVER INTRODUCE WATER ON SELF CONTAINED UNIT WITH AN EVAPORATION PAN e NEVER USE A CLEANING OR SANITIZING SOLUTION THAT HAS OIL BASE these will dissolve the butyl sealants or an AMMONIA BASE this will corrode the copper components of the merchandiser e TO PRESERVE THE ATTRACTIVE FINISH e Use a water and a mild detergent for the exterior only e Do NOT use a chlorinated cleaner on any surface e Do NOT use abrasives or steel wool scouring pads these will mar the finish P N 0514392 F U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 05143
29. ch kit secures two lids HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Novelty Basket For the storage and display of novelty items the novelty basket 1s ideal The basket is epoxy coated white and it is 10 in x 12 in x 6 2 inches high Basket dividers are also available Product Shelf Kit The interior of the LBN series a raised step over the condensing unit compartment The product shelf kit 1s a false bottom of the cabinet level with the raised step Reversing Condenser Fan Motor For reduced condenser cleaning frequency Stainless Steel Top Like the counter tops the stainless steel top replaces the standard metal countertop for those who need a highly durable working surface Superstructure with Lighted Canopy The cabinet can be provided with a superstructure which has two shelves and a lighted canopy that attaches to the back of the cabinet The super structure allows for the storage of dry goods without the need for additional floor space Superstructure with Lighted Canopy The superstructure can also be provided without the lighted canopy It is still supplied with two shelves LBN Horizontal Merchandisers 5 8 SERVICE COMPRESSOR REPLACEMENT PROCEDURE Replacement compressors will not be shipped from the Hussmann factory They may be obtained from your nearest Copeland wholesaler Your wholesaler will replace free of charge any compressor found to be defective withi
30. der Display Pan 4 2 Cleaning Evaporator Pan 4 3 Cleaning Stainless Steel Surfaces 4 3 Removing Scratches from Bumper 4 4 SERVICE Defrost Thermostat Replacement 5 1 Defrost Heater Replacement 5 Condensate Heaters 5 2 End Panel Heaters 5 2 Replacing Fluorescent Lamps Ballasts 5 2 Front Glass Heater Replacement 5 3 Nose Heater Replacement 5 3 Condensate Heater Limit Thermostat 5 3 Troubleshooting Guide 5 4 Light Problem Solution 5 6 LBN Accessories and Options 5 7 Compressor Replacement Procedure 5 8 Internal Leak Warranty Policy 5 8 Table of Contents Continued on Next Page LBN Horizontal Merchandisers vi TABLE OF CONTENTS CONTINUED APPENDIX Part Numbers A 1 Plan VIew A 4 Cross Section and Refrigeration Data A 5 Electrical Data Wiring Diagrams REVISION HISTORY REVISION F Removed all references to Ice Cream REVISION E Replaced LBN 10 Wiring Diagram added Page A 11 230V REVISION D Revised Wiring Diagrams REVISION C Revised incorrect part number for LBN 4 Compressor Page A 2 OCTOBER 2011 REVISION B Changed for Windchill purposes ORIGINAL ISSUE DECEMBER 2010 P N 0514392 F Ve oe veo we ve owe veo we Ve owe Ve we e w
31. e e ow oe de de o de X ANSI Z535 5 DEFINITIONS DANGER Indicate s a hazardous situation which if not avoided will result in death or serious injury WARNING ndicate s a hazardous situation which if not avoided could result in death or serious injury A CAUTION Indicate s a hazardous A situation which if not avoided could result in minor or moderate injury NOTICE Not related to personal injury Indicates s situations which if not avoided could result in damage to equipment U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0514392 F 1 1 INSTALLATION CERTIFICATION These merchandisers are manufactured to meet ANSI National Sanitation Foundation NSF Standard 7 requirements Proper installation is required to maintain certification Near the serial plate each case carries a label identifying the type of application for which the case was certified ANSI NSF 7 Type I Display Refrigerator Freezer Intended for 75 F 55 RH Ambient Application ANSI NSF 7 Type II Display Refrigerator Freezer Intended for 80 F 55 RH Ambient Application ANSI NSF 7 Display Refrigerator Intended for Bulk Produce HUSSMANN PRODUCT CONTROL The serial number and shipping date of all equipment is recorded in Hussmann s files for warranty and replacement part purposes All correspondence pertaining to warranty or parts ordering must include the s
32. eae neue an 1 5 Sealing Merchandiser to Floor 1 5 NOTES auae pue ed eemeiresress es 1 6 ELECTRICAL REFRIGERATION Merchandiser Electrical Data 2 Field Wiring 2 1 Electrical Connections 2 1 Power SWICH sasawan gpawawaqawaq 2 1 Electrical BOX 2 1 Electrical Outlet 2 2 Refrigeration Self Contained 2 2 Refrigeration Remote 2 2 Line SZINES osos e EE E E 2 3 Waste Outlet and Water Seal 2 3 Safe NET III Control 2 3 Safe NET User Instructions 2 4 Sequence of Operation 2 6 Dual Temperature Sequence of Operation 2 7 Temperature Adjustment 2 8 Electromechanical Controls 2 3 Defrost Time Clock 2 3 Setting Defrost Times 2 4 Crankcase Pressure Regulator 2 4 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A V START UP OPERATION Start Up 3 1 Controls and Adjustments 3 1 Load LIMIS Ss sega oe os wa eee ee a 3 2 Stocking 3 2 Thermometer 3 2 MAINTENANCE Care and Cleaning 4 1 Do NOT Dag 4446 444464846464 6464453 4 b EE 4 Cleaning Discharge Air Grille 4 2 Cleaning Solar Thermometer 4 2 Cleaning Coils 4 2 Cleaning Un
33. eansers or scouring pads CLEANING COILS Condenser coils should be cleaned at least once per month Additional cleaning may be needed depending on the operational environment FIN COILS Airflow blockage increases energy consumption and reduces the merchandiser s ability to main tain operating temperature To clean fin coils use a vacuum cleaner with a wand attachment and a soft non metallic brush to remove dirt and debris Do not bend coil fins Always wear gloves and protective eye wear when cleaning near sharp fins and dust particles U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392 F The condenser 1s of bare tube construction on the LBN 4 6 7 and 8 to reduce the amount of required maintenance required and fin and tube construction on the LBN 10 To ease in the cleaning of the bare tube con denser the top of the condenser shroud is removable Slit the upper corners of the gasket on the front of the condenser Remove the screws holding the shroud top into the shroud ends and remove the top to gain full access to the condenser Remove Screws to Access Condenser The glass lids are made of tempered non heat ed glass The lids slide up to open and can be locked open for product loading The lids are not self closing The lids will close easily by hand and with the assistance of gravity There is a nylon glide on the edge of the glass to assist 1n closing The
34. ed behind the end panel stainless steel reflectors They can be removed by removing the screws on the bot tom edge of the panel and pulling down on the bottom edge The heater is on adhesive foil on the backside of the panel End Panel Heater N WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area P N 0514392 F REPLACING FLUORESCENT LAMPS AND BALLASTS Cool white fluorescent bulbs located on the underside of the stainless steel mirror reflector provide interior lighting for the merchandiser The bulbs are sleeved to maintain proper heat around the bulb for maximum light intensity and to protect the bulb in case of breakage The tubes can be replaced without removing the doors To replace twist the bulb and slide the prongs clear of the lamp holder When reinstalling this type of bulb be sure the prongs on the bulb twist and lock into place There Is a convenient ON OFF switch located at the right end of the case cabinet behind the mirror reflector This switch only controls the lights The lights should always be left ON to prevent moisture from forming on the mir ror reflector This 1s especially important for high humidity environments The light ballast 1s located in the light fixture Remove the mirror reflector to access the ballast y Protective Shield Bulb JC End Cap Remove Plastic Pins Attaching Display Lamp U S amp Canada 1 800 922 1919 e Mexico 1 8
35. en powered up there will Starts be a delay of 30 sec at start up before the compressor starts ON OFF A AUN Compressor Start Up Off Cycle Safe NET Ii 52 MHUSSmnRnhnn GREEN REFRIGERATION GREEN REFRIGERATION YELLOW DEFROST YELLOW DEFROST RED ALARM RED ALARM DISPLAY safe Net IIl Controller 1 Apply power to the merchandiser Wait for 3 The compressor will continue to run until it the self check to complete During the self reaches its cut out temperature Pulldown check each LED flashes for one second and then all LEDs turn on for two seconds If the 4 The refrigeration cycle will continue for the next LEDs do not flash make sure the adjustment subsequent scheduled 6 hours or demand knob is not in the OFF position defrost The digital display will display the temperature reading for 10 minutes after 1A The merchandiser temperature displays at defrost startup The initial defrost starts two hours later The display will show the temperature at the start of defrost This reading will remain displayed during defrost and until it times out even though the refrigeration mode has been initiated The green LED will be lit 5 The above process will repeat steps 3 and 4 until the power 15 interrupted 6 If power stops the process will start over at step l and the time to subsequent defrost will reset 2 The compressor will start after a 1 minute delay once power 1s applied P N 051439
36. erial number of each piece of equipment involved This is to ensure the customer 1s provided with the cor rect parts SHIPPING DAMAGE All equipment should be thoroughly examined for shipping damage before and during unloading This equipment has been carefully inspected at our factory Any claim for loss or damage must be made to the carrier The carrier will provide any necessary inspection reports and or claim forms HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Apparent Loss or Damage If there is an obvious loss or damage it must be noted on the freight bill or express receipt and signed by the carrier s agent otherwise carrier may refuse claim Concealed Loss or Damage When loss or damage is not apparent until after equipment is uncrated retain all packing materials and submit a written response to the carrier for inspection within 15 days LOCATION These merchandisers are designed for displaying products in air conditioned stores where temperature 1s maintained at or below the ANSI NSF 7 specified level and relative humidity 1s maintained at or below 55 Recommended operating ambient temperature is between 65 F 18 C to 75 F 23 9 C Maximum relative humidity is 55 Placing refrigerated merchandisers in direct sunlight near hot tables or near other heat sources could impair their efficiency Like other merchandisers these merchandisers are sensitive to air disturbances Air curren
37. ers A 6 APPENDIX A TECHNICAL DATA Electrical Data Note These are rated values for individual components and should not be added together to determine total merchandiser electrical load Condensing Unit 115V 1Ph 60Hz Standard LBN 4 LBN 6 LBN 7 LBN 8 LBN 10 Compressor LRA 56 45 59 8 59 8 40 Compressor RLA 10 5 10 2 12 12 7 7 Product Data LBN 4 ARI Total Display Area Sq FtlCase 360 76 ft case 12 74 m case LBN 6 ARI Total Display Area Sq FtlCase 623 82 ft case 22 03 m case LBN 7 ARI Total Display Area Sq FtlCase 757 48 ft case 26 75 m2 case LBN 8 ARI Total Display Area Sq FtlCase 887 17 ft case 31 33 m case LBN 10 ARI Total Display Area Sq FtlCase 1146 27 ft case 40 48 m case Computed using ARI 1200 standard methodology Total Display Area ft m Unit of Length ft m Model Nominal Refrigerant ee LL O W e RunAmps NEMA Plug fuse Amps Hh Lo oo j jJ j EL _ T j j j j j _ JL j j jJ j o x o j j Jj j j field hard wired LBN 10 has rear air discharge 15 Amp time delay breaker or fuse required P N 0514392 F U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com A 7 P N 0514392 E e Hp ebuelIO O uwolg 2g SIUM M 9elg xg enig 1H ueeJb mollah A peu uH PpepunojJ6 eq snw JesipueuoJeuiJ eui pue punoi eoiueuoeuJ SARU jsnui sjueuoduagoo V
38. es ST a le T y 9 Ss sisi A y VV u e es 1VISOWH3HI 1S0833Q s T LO z Qc LBN Horizontal Merchandisers HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A SERVICE A 12 AWD u9 eDuejo O uwoig g elluM M 98lg M8 enig 18 usan A0J A A p H H pepunol6 eq snw JesipueuojJeuJ eui pue puno B eoiueuoeui SARU snw sjueuoduJoo V ONINHVM quo yg Es i IS es Y 40128 0Jd e T I k aNd ON Id H CS YS J O e HIS Ce On 1d Hd34MOd HOLIMS TOHLNOO AlddnNS 4MOd u III LANES by L _ _ _ pf LE i zl ES 6 A Occ B A EE gt oyoedeg ato HdMOd ZH 09 5 i Y L wes IWNOILdO p duu l 1y Ju Ha JOSU8S tat JeAISOWISYL X xog e21129 3 HlVd3HS MOV 1d P 1SdS H1V3HS MOTISA Ill m 9L Ldd e SOWJEU JejeeH a bd E ejesuepuoo unuy H Y Ue E Q31 LIM TVNOLLdO gi i 9L LINT HLH IWS lo co Vl Sc 8c OF HOLIMS N o T en dlAV JJ JU diNV ji u IIl LHN 34VS S YUM OL NE U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com
39. f the front glass 7 Pull the front glass up and out exposing the wires at the right hand end of the glass and disconnect 8 Replace the glass assembly 9 Reverse procedure to reassemble NOSE HEATER REPLACEMENT The nose heater is located behind the nose screen that 1s 1n front of the evaporator Remove the nose screen replace heater ANTI SWEAT HEATER LIMIT THERMOSTAT The anti sweat heater limit thermostat 1s a safety feature that will shut off the condensate heaters just discussed when the thermostat senses 101 F The thermostat 1s located on the defrost thermostat mounting bracket which is on the air scoop behind the nose screen in front of the evaporator LBN Horizontal Merchandisers 5 4 SERVICE TROUBLESHOOTING GUIDE PROBLEM PROBABLE CAUSE 1 Short of refrigerant Inefficient compressor Compressor runs continuously product too warm Dirty condenser Evaporator oil logged Cabinet location too warm Restricted condenser air flow Defective condenser fan motor High head pressure 4 Air or non condensable gases in system 1 Temperature control not set properly 2 Short of refrigerant Warm storage temperature 3 Cabinet location too warm 4 Too much refrigerant 5 Low voltage compressor cycling on overload Condenser dirty Defective control Compressor runs continuously product too cold Control feeler not in tube properly sensor incorrectly located
40. for both the merchan diser and the floor Remove the skid by raising one end of the merchandiser approximately 6 inches Block the merchandiser securely and remove the two skid bolts from the raised end Replace the bolts with provided leg levelers Repeat this proce dure at opposing end Once the leg levelers are secured in place the merchandiser may be slid off the skid and placed in its final location DO NOT TILT MERCHANDISER ON ITS SIDE OR END WHEN REMOVING SKID Once the skid 1s removed the merchandiser must be lifted NOT PUSHED to reposition Check floor where merchandisers are to be set to see if it is a level area Determine the highest part of the floor LBN Horizontal Merchandisers 1 4 INSTALLATION MERCHANDISER LEVELING BE SURE TO POSITION MERCHANDISERS PROP ERLY Level the merchandiser by all four corners Merchandiser s must be installed level to ensure proper operation of the refrig eration system and to ensure proper drainage of defrost water A slight pitch from front to back 1s desirable The cabinet back should never be higher than the front COMPRESSOR The compressor 1s banded for shipping Remove the two bolts holding the compressor bar in place Pull out the condensing unit Cut the steel band which holds down the compressor during shipment The compres sor should now float freely on the mounting springs DO NOT LOOSEN NUTS Compressor Band Compressor Band Z
41. ilter Drier Compressor Condenser Condenser Fan Motor Condenser Fan Blade Capillary Tube Assembly Filter Drier U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com Item Part LBN 8 CU 028444 CO 4671192 MO 4410274 FB 4780788 RC 4671066 FI 4611347 LBN 10 CU 8420119 CO 25S040 MO 4410827 MO 4410274 RC 4671479 FI 4611347 Description Compressor Condenser Condenser Fan Motor Condenser Fan Blade Capillary Tube Assembly Filter Drier Compressor Condenser Condenser Fan Motor Condenser Fan Blade Capillary Tube Assembly Filter Drier P N 0514392 F A 3 Item Part Description Item Part Description LAMPS AND BALLASTS FLUORESCENT LED Power Supply BA 4480866 Ballast LBN 4 6 EP 4483205 LBN 4 BA 4480870 Ballast LBN 7 8 EP 4483205 LBN 6 BA 4483076 Ballast 35W LBN 10 EP 4483205 LBN 7 BA 3383077 Ballast 28W LBN 10 EP 4483205 LBN 8 Fluorescent Lamp EP 4483187 LBN 10 Replace with like fixtures SW 4440541 Light Switch Lips ASSEMBLY LBN all models TP 4916574 Lids Assembly LED FIXTURES AND POWER SUPPLY LBN 4 LBN 6 LBN 8 LED Fixture TP 4916574 Lids Assembly LBN 7 BU 4441801 LBN 4 TP 4915676 Lids Assembly BU 4441800 LBN 6 LBN 10 BU 4441801 LBN 7 BU 4441801 LBN 8 3ft BU 4441800 LBN 8 4ft BU 4441800 LBN 10 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A LBN Horizontal Merchandisers A 4 APPENDIX A TECHNICAL DATA LBN REFRIGERATI
42. ler to precisely maintain the tempera ture and prevent frost buildup on the cooling coil LEDs indicate when the compressor or refrigeration is on when the case is in a defrost cycle if the temperature 1s outside the desired range or if there 1s a sensor failure An adjustment knob allows the temperature to be set within the configured range and can power off the controller and compressor Your controller has been custom configured to pro vide the best temperature and defrost control for your chilled or frozen food The front of the controller has an adjustment knob and status LEDs The back of the controller has connections for sensors and switched equipment Adjustment Knob Compressor Powered On green Defrost Cycle yellow Temperature or Sensor Alarm red wami op Position position Cold Position P N 0514392 F The Safe NET III controller includes the following features and connections Adjustment knob Adjusts the temperature setpoint Turn adjustment knob to OFF to turn off refrigeration system Unplug merchandiser from power before servicing the unit Case Temperature Evaporator Sensor Temperature Sensor Sensor and Switch Common Az Defrost Termination a 90 09 Switch optional one Power Interface Box and Copy Card TTL Connector Heater Com pressor E72R only Fan E72R only Controller LEDs se Compressor Powered On LED green Lights while the compressor is r
43. n 12 months of installation not to exceed 20 months from the date of manufacture as determined by the compressor serial number on the compressor serial plate For any defective compressor beyond the 12 month or 20 month time period a salvage value credit will be given to partially offset the invoice for replacement After March 16 1991 when all cases have the five year warranty as standard the following pro cedure applies FORWARD TO YOUR NEAREST HUSSMANN DISTRIBUTOR 1 The cabinet model and serial number 2 A copy of the wholesaler s invoice along with a copy of the salvage value credit INTERNAL LEAK WARRANTY POLICY The LBN series are warranted from the date of factory shipment for five years for an internal leak An internal leak not only includes the cold wall tubing but the upper evaporator as well on these models If it is felt that there is an internal leak in the cabinet care should be taken to actually determine that there is a leak P N 0514392 F To do this properly the cabinet s evaporator section must be isolated from the condenser section Unbraze the tubes going into the back of the cabinet at the end of the heat exchanger Pinch or cap the larger tube and braze shut Add a schrader valve to the smaller tube Attach the high side gauge of a compound gauge to the valve and pressurize the cabinet with nitrogen or otherwise suitable gas There should be at least 300 psig on the system
44. net is disconnected rear of the condensing unit compartment This panel can be removed to gain access to the back compartment SEALING MERCHANDISER TO FLOOR Rear Access Panel Removed n w If required by local sanitary codes or if the customer desires merchandisers may be sealed to the floor using a vinyl cove base trim The size needed will depend on how much varia tion there is 1n the floor from one end of the merchandiser to the other Sealing of the lower front and rear panels on self contained mod els may hamper their removal for servicing or maintenance of the condensing unit NOTE Do not allow trim to cover any intake or discharge grilles located in the lower front panel AN WARNING LOCK OUT TAG OUT To avoid serious injury or death from electri cal shock always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component This includes but is not limited to such items as doors lights fans heaters and thermostats HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A LBN Horizontal Merchandisers 1 6 INSTALLATION NOTES P N 0514392 F U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0514392_F 2 1 ELECTRICAL REFRIGERATION MERCHANDISER ELECTRICAL DATA Refer to Appendix A of this manual or the merchandiser s serial plate for electrical information FIELD WIRING Field wiring must be sized f
45. ondensing unit except LBN 10 and a balanced refrigeration system for energy saving performance UNLOADING Unloading from Trailer Use a Lever Bar also known as a Mule Johnson Bar J bar Lever Dolly or Pry Lever Move the merchandiser as close as possible to its permanent location and remove all packaging Check for damage before discarding packaging Remove all separately packed accessories such as kits and shelves A CAUTION Do not walk on case Do not put flammable items atop the unit Improper handling may cause damage to the merchandiser when unloading To avoid dam age 1 Do not drag the merchandiser out of the trailer Use a Johnson bar mule 2 Use a forklift or dolly to remove the merchandiser from the trailer N WARNING Do NOT remove shipping crate until the merchandiser is positioned for installation HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 1 3 EXTERIOR LOADING Do NOT walk on top of merchandisers or damage to the merchandisers and serious personal injury could occur MERCHANDISERS ARE NOT STRUCTURALLY DESIGNED TO SUPPORT EXTERNAL LOADING such as the weight of a person Do not place heavy objects on the merchandiser SHIPPING SKID Each merchandiser 1s shipped on a skid to protect the merchandiser s base and to make positioning the case easier Do not remove the shipping skid until the merchandiser 1s near its final location The skid provides protection
46. or component amperes stamped on the serial plate Actual ampere draw may be less than specified ALWAYS CHECK THE SERIAL PLATE FOR COMPONENT AMPERES ELECTRICAL CONNECTIONS LBN 4 6 7 and 8 models have a power cord attached to the unit with a ground prong The cord 1s rated 115V 15 Amp The LBN 7 and 8 also require a circuit breaker or a time delay fuse rated at 15 Amps for the circuit being run to them LBN 10 cord 1s rated 208 230V 15 Amp circuit with a prong All of these models are 60 hz 1 ph Connecting this unit to any electrical supply other than specified on the serial plate will void the war ranty and may result in serious damage to the unit The cabinet should be supplied with its OWN service N WARNING Merchandiser must be grounded Do not remove the power supply cord ground HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A POWER SWITCH The power switch 1s located at the electrical box that is behind the front louvered access panel A slot in one of the louvers allows access to the switch The switch will shut off all power to the cabinet for all LBN models HUSSmAnN an 1 800 922 1919 L 01 800 522 1900 Wi 4 For a Service Network Locator SH and other information visit us at b www hussmann com S select Worldwide Locations ELECTRICAL BOX LBN models have two control options The standard option uses the Safe NET III electronic control For this option the electrical box
47. r Spring Clip on rear Drain Pan DEFROST HEATER REPLACEMENT The cabinet is equipped with two defrost heat ers which are wired in parallel except for the LBN 4 6 7 and 8 220V which are wired in series Wiring them this way allows for lower wattage which increases the life of the heater The drain pan does not have to be removed to replace the heaters The heaters are equipped with plug in connec tions that plug into the underside of the light fixture Disconnect electrical power supply Remove the stainless steel reflector Remove the nose screen in front of the evaporator area The heaters are held up against the evaporator by spring clips Press heaters down and pull up on the front edge of the heater clips The heaters can be fulled forward When replacing be sure the back pass of the rear defrost heater goes into the retaining clip at the back of the drain pan This is necessary to prevent ice build up in the drain pan Spring Clip Defrost Heaters Coil Heater Bracket u View LBN Horizontal Merchandisers 5 2 SERVICE REPLACEMENTS OF ANTI SWEAT HEATERS There are anti sweat heaters behind the stain less steel end panels around the front glass and behind the nose screen These heaters are thermostatically controlled in case the cabinet malfunctions and thermostat senses above 101 F at which time the heaters will shut off REPLACEMENT OF END PANEL HEAT ERS The end panel heaters are locat
48. s furnished for the store or according to ASHRAE guidelines ATTENTION NSTALLER It is the contractor s responsibility to install merchandiser s in accordance with all local building and health codes HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 2 3 WATER OUTLET AND WATER SEAL The condensate water outlet is located on the right side of the merchandiser The outlet has a factory installed external water seal For self contained models like this water seal drains into the condensate evaporator pan located beneath the merchandiser Ensure the drain hose is properly trapped and the drain area is not clogged For remote models connect the drain hose to a floor drain Ensure that the drain hose 1s properly trapped NOTE All lower base panels must be in place when the refrigerator is operating If not air flow from the condenser will be directed over the evaporator pan and defrost water in the pan may overflow OPTIONAL ELECTROMECHANICAL CONTROLS These merchandisers require defrost cycles for proper operation Refer to the technical data section for application data Defrosts are time initiated and temperature terminated The defrost timer duration is factory set LBN Horizontal Merchandisers 2 4 ELECTRICAL REFRIGERATION Safe I M TEMPERATURE AND DEFROST CONTROLLER SAFE NET IIM USER INSTRUCTIONS Your refrigerated case uses a Hussmann Safe NET III temperature and defrost control
49. ter TC 03S8269 Defrost Timer 48 Hours All models except LBN 10 GL 4990293 Front Glass Pack with Heater TC 03S072 Defrost Timer 24 Hours LBN 10 LBN 7 HE 4850849 Defrost Heater Safe NET III Option CC 4482540 Display F HE 4850959 Nose Heater Safe NET III Electronic GL 4990304 Front Glass Pack with Control LBN 4 6 7 8 Heater Safe NET III Electronic LBN 8 Control LBN 10 HE 198470 Defrost Heater CC 4482537 Air Sensor Black HE 4850911 Nose Heater CC 4482538 Defrost Sensor Yellow GL 4990291 Front Glass Pack with Heater EP 4482541 Safe NET III Harness LBN 10 HEATERS HE 19S626 Defrost Heater ALL MODELS HE 4850924 Nose Heater HE 4850897 Heater End Breaker Right Side GL 4990291 Front Glass Pack with Heater HE 4850910 Heater End Breaker End Side CT 4480283 Defrost Heater Limit Thermostat CT 4482440 Anti Sweat Heaters Limit LBN Horizontal Merchandisers A 2 APPENDIX A TECHNICAL DATA Item Part Description LBN 4 LBN 6 LBN 7 LBN 8 LBN 10 REFRIGERATION LBN 4 CU 4200694 CO 4671497 MO 4410274 FB 4780788 PC 4613912 FI 4613665 LBN 6 CU 8420115 CO4671497 MO 4410274 FB 4780788 PC 4613912 FI 4613665 LBN 7 CU 028444 CO 4671192 MO 4410274 FB 4780788 RC 4671066 FI 4611347 P N 0514392 E Compressor Condenser Condenser Fan Motor Condenser Fan Blade Capillary Tube Assembly Filter Drier Compressor Condenser Condenser Fan Motor Condenser Fan Blade Capillary Tube Assembly F
50. ts passing around merchandisers will seriously impair their operation Do NOT allow air conditioning electric fans open doors or windows etc to create air currents around the merchandiser LBN Horizontal Merchandisers 1 2 INSTALLATION SELF CONTAINED LOCATION LBN 4 6 7 and 8 each have front condenser air intake and discharge Maintain a minimum clearance distance of two feet in front of the merchandiser so that air discharge and air intake is not obstructed LBN 4 6 7 8 lt 24 in Intake eg Air SS Exhaust SRR REX Ns Maintain 24 in Clearance at Front of Merchandiser Zero Clearance around Sides and Rear of Merchandiser P N 0514392 F LBN 10 requires a 2 inch minimum clearance behind the merchandiser A 24 in clearance must be maintained in front of the merchandiser because air flows through the front condensing unit compartment LBN 10 24 in RR N kW LALL Air Ar E Sw Intake Exhaust Ki SS Maintain 24 in Clearance at Front of Merchandiser Zero Clearance 2 in Clearance around Sides at Rear of Merchandiser U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0514392_F MODEL DESCRIPTION The LBN series are low temperature self con tained cabinets designed for pre packaged foods at below freezing temperatures Design features include non heated glass lids foamed in place non CFC insulation interior mirrors reflectors front air discharge c
51. tside of the designated load limits in the illustration at right P N 0514392 F THERMOMETER The cabinet has a thermometer located on the left hand end of the nose screen that is just below the upper mirror reflector and light fix ture The thermometer is a pencil type and reads from 40 F to 80 F on 2 increments To replace remove the two screws and install the replacement N WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area m LOAD LIMIT Electrical Condensing Box Unit U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392 F 4 1 MAINTENANCE CARE AND CLEANING Long life and satisfactory performance of any equipment is dependent upon the care it receives To ensure long life proper sanitation and minimum maintenance costs these merchandisers should be thoroughly cleaned all debris removed and the interiors washed down weekly Exterior Surfaces The exterior surfaces must be cleaned with a mild detergent and warm water to protect and maintain their attractive finish NEVER USE ABRASIVE CLEANSERS OR SCOURING PADS Interior Surfaces The interior surfaces may be cleaned with most domestic detergents ammonia based cleaners and sanitizing solutions with no harm to the surface Self contained models empty into a limited capacity evaporation pan which will overflow if excess water 1s used in cleaning Do NO
52. tube Leak check change drier evacuate and recharge Replace fuse or reset breaker Repair or replace Replace Replace Check service cords or wir ing connections 1 Contact electrician 2 Replace 3 Replace 4 Leak check replace drier evacuate and recharge Clean condenser Replace Reset to 10 psig Reset to 10 psig LBN Horizontal Merchandisers 5 6 SERVICE PROBLEM PROBABLE CAUSE SOLUTION Low voltage Check voltage at compressor Cabinet not level Check front to rear leveling Icing condition in drain pan under evaporator Defective defrost heater Replace 4 Drain trap does not have Pour water down drain water in it CPR not set properly 1 Replace to 10 psig 2 Replace 2 Defective CPR Low suction pressure 3 Change drier evacuate Low head pressure 3 Capillary tube blocked due and recharge to water or dirt 4 Leak check change drier 4 Short of refrigerant evacuate and recharge 1 Top coil blocked with frost 1 Check defrost system Pressures normal cabinet warm 2 Evaporator oil logged 2 Blow oil out of evaporator LIGHT PROBLEM SOLUTION PROBLEM SOLUTION Check light switch Check continuity to ballast Lights won t start Check to see if bulbs are inserted properly in sockets Check voltage Check voltage Ballast hums Replace ballast P N 0514392 F U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515
53. unning or the refrigeration valve 1s open ez Defrost Cycle LED yellow Lights while the refrigeration coil 15 defrosting Temperature or Sensor Alarm red Lights if the temperature 1s too warm or too cold Flashes if a sensor fails U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0514392 F Rear connections Case temperature sensor Typically senses the temperature of the air in the case Used by the controller to determine when to power on or power off the compressor or refrigeration Evaporator temperature sensor Senses the temperature of the refrigeration coil Terminates a defrost cycle when refrigeration coil ice melts Compressor or refrigeration relay Switches on the compressor or refrigeration valve for cooling Defrost reversing condenser switch Switches on the defrost or reversing condenser fan motor when used with the condenser fan motor option N WARNING The optional evaporator fan remains ON when the adjustment knob is in the OFF DISPLAY The display includes three red LEDs and two digits for temperature defrost status and error codes The three display LEDs are red and their behavior matches the LEDs on the controller Compressor Powered On Defrost Cycle HUSSmann Temperature or Sensor Alarm HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 2 5 START UP 1 Plug in the merchandiser AN WARN

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