Home

warning

1. LOCK OUT TAG OUT To avoid serious injury or death from electrical Wiring Diagram NIM 6 shock always disconnect the electrical power Part 2 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 eT Te Do not apply voltage to the digital input Compressor d to ED 1 Qu zu Eu ll a Display Black Sheath Yellow Sheath 1 2 3 4 5 6 7 IM G zile Bk W J D BK 30 hA EE Lr UR iced S a g Defrost L J Safe NET III Control Black Wires Sol o v id Brown oak e e i W 1 Yellow Bluey 3 ak Fan hd oh i Oe dor MATES AC 60Hz 1Ph G 8 G o l N Power Supply E w w L White Wires S v W LL W v w T e W e j r T INT 1 ait N d Pus l 25 7 BK es BK P N 2402195 G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com To obtain warranty information or other support contact your Hussmann representative Please include the model and seri
2. 4 3 Cleaning Coils ctu s ces ao 4 3 Cleaning Doors and Tracks 4 3 Cleaning Evaporation Pan 4 4 SERVICE Replacing Fan Motors and Blades 5 1 Replacing Defrost Heaters 5 2 APPENDIX Patt Numbers Giessen ete eo A 1 Plan View NIM 6 234202 cheetah Ru A 2 Cross Sections and Refrigeration Data A 3 Electrical Data 2o ev vex ew A 4 Wiring Diagram 5 x ato sat det yee ere A 5 Wiring Diagram Continued A 6 WARRANTY NIM 6 Merchandisers vi REVISION HISTORY REVISION G NOVEMBER 2010 1 Added self contained location drawings page 1 2 Added Remote Line Sizing Koolgas page 2 2 Added Koolgas and Remote Refrigeration page 2 9 Added TEV drawing and adjustment page 3 8 Added Cleaning Precautions page 4 4 Added dimension drawings amp technical data pages A 1 A 2 A 3 and A 4 QN tn FW N REVISION F OCTOBER 2009 WoW Xe owe ooo ooo ooo ooo o X X X ANSI Z535 5 DEFINITIONS situation which if not avoided will result in death or serious injury e DANGER Indicate s a hazardous WARNING Indicate s a hazardous situation which if not avoided could result in death or serious injury CAUTION Indicate s a hazardous 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 P N 2
3. 00085 1 6 Sealing Merchandiser to Floor 1 6 ELECTRICAL REFRIGERATION Merchandiser Electrical Data 2 1 Field Wining iso one ede Eos 2 1 Electrical Connections 2 1 Electrical Outlet L1 2er oL Rs 2 Refrigeration Self Contained 2 1 Line Sizing Remote Models 2 2 Oil draps ccs RE ee ha oe bce BAM ee a 2 2 Pressure Drop up PL ESRB A eS EE 2 2 Water Outlet and Water Seal 2 2 START UP OPERATION Safe NET IIITM User Instructions 3 1 Display vods saved awe PRAESES 3 2 Start UD oy cao fads XS MES e oe eS 3 2 Sequence of Operation Diagram 3 3 Temperature Adjustment 3 4 Alarms and Codes 3 4 Defrost Termination Switch 3 4 Manual Defrost 25 44 ec ad rede ke Bd PY 3 4 Temperature Adjustment 3 5 Sensor to Control Configuration 3 6 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A V Controls and Adjustments 3 7 Thermostatic Expansion Valve 3 8 TEV Adjustment 206 0 000004 e240 cea 3 8 Load Limits aR TE ioe Es E eos 3 9 PUG CIT Se oa Solan Ves e redes al reds 3 9 Tempered Glass Doors 3 10 MAINTENANCE Care and Cleaning teens res 4 1 Do NOT Use 5p peti RIPE eaa 4 D m L 4 Removing Scratches from Bumper 4 2 Cleaning Under Fan Plenum 4 2 Cleaning Stainless Steel Surfaces 4 2 Cleaning Discharge Honeycomb
4. SW 4440546 RL 4480238 EP 4441808 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Fan Motor 115V Fan Blade Safe Net III Controller Defrost Sensor Yellow Air Sensor Black SS TIP Safe Net III Display with Audible Alarm F Safe Net III Harness Condensate Pan Defrost Heater Limit Heater Bottom Door Frame 30W Nosing Anti Sweat Heater Drain Heater Disconnect Switch 25Amps Reversing condenser fan Anti sweat relays Power Cord Item Part Description REFRIGERATION CU 4200694 Compressor 115V EV 4671506 Evaporator MO 4411020 Reversing Condenser Fan Motor FB 4780850 Condenser Fan Blade CO 4671499 Condenser FL4611347 Drier VR 4613234 Expansion Valve VR 4613284 Orifice LAMPS AND BALLASTS BA 4480870 Ballast Lamp Fluorescent Lamps Replace with Like Fixtures SW 4440541 Switch Light NIM 6 Merchandisers A 2 APPENDIX A TECHNICAL DATA Dimensions shown as inches and mm s dm vt E ue ie NI Lino p np ir 16 Drain Condenser Refrigeration Electrical Unit Outlet Outlet Drain FRONT General Case Length Note Includes One Pair Ends 6 ft 76 1 4 1938 Optional End Bumpers One Pair 2 51 Maximum O S dimension of case back to fron
5. Box and Copy Card TTL Connector Heater E72R only Fan E72R only Compressor Controller LEDs Compressor Powered On LED green Lights while the compressor is running or the refrigeration valve is open amp Defrost Cycle LED yellow Lights while the refrigeration coil is defrosting 9 Temperature or Sensor Alarm red Lights if the temperature is too warm or too cold Flashes if a sensor fails NIM 6 Merchandisers 3 2 START UP OPERATION 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 AN WARNING The optional evaporator fan remains ON when the adjustment knob is in the OFF position 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 Temperature or Sensor Alarm P N 2402195 G START UP 1 Plug in the merchandiser N WARNING The OFF Position does not disconnect line voltage to the case
6. REPLACING DEFROST HEATERS There are two defrost heaters one located on the front of the evaporator and one on the rear The defrost limit 1s located on the fan panel next to the evaporator fan plug Turn OFF power before servicing heaters 1 Disconnect the heaters from the main harness Heater connections are made inside the electrical box located in the condensing unit compartment 2 Remove the wire leads Remove the wire clips that attach the heater to the coil 3 Remove heaters from coil Heater sits on coil end plates 4 Replace heater following previous steps in reverse order Defrost Heaters on Evaporator P N 2402195 G N WARNING LOCK OUT TAG OUT To avoid serious injury or death from electrical 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 Evaporator Defrost Fan Plug E Defrost Sensor r Fan Panel U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com A 1 APPENDIX A TECHNICAL DATA Item Part Description FAN ASSEMBLIES AND THERMOSTATS 4W Standard Fan Assembly MO 4410101 FB 0409511 CT 4483050 CC 4482991 CC 4482992 CT 4482926 EP 4482541 HEATERS DP 4919022 CT 4440261 HE 4851013 HE 4850773 HE 4851198 CONTROL PANEL
7. condenser maintenance to occasional inspections The condenser can be inspected without pulling the whole condensing unit out of the case Simply remove the grille on the intake side of the condensing unit Condenser coils should be cleaned at least once per month Additional cleaning may be needed depending on the operational environment A dirty condenser blocks normal airflow through the coils Airflow blockage increases energy consumption and reduces the merchandiser s ability to main tain operating temperature To clean the 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 coil fins and dust particles Clean the Intake Side of Condenser U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 2402195 G 4 3 CLEANING EVAPORATION PAN SELF CONTAINED ONLY The condensate water outlet for self contained models empties into a limited IN C AUTI O N capacity evaporation pan Evaporation Pan is Hot and poses risk of bodily injury Always Wear gloves and protective eye wear when servicing Turn off evaporation pan heater and allow pan to cool Debris or dirt accumulation inside the condensate evaporation pan or on the heater coil will reduce the pan s evaporation capacity and cause premature heater failure The evaporation pan waste water will ov
8. the steel Use warm water or add a mild detergent to the water and apply with a cloth Always wipe rails dry after wetting 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 P N 2402195 G CLEANING DOORS AND TRACKS Wipe down doors glass and tracks with a mild detergent or glass cleaner frequently N WARNING Do NOT use HOT water on Cold glass Surfaces This can cause the glass to shatter and could result in personal injury Allow glass fronts to warm before applying hot water 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 U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 2402195 G 5 1 SERVICE A WARNING LOCK OUT TAG OUT To avoid serious injury or death from electrical REPLACING FAN MOTORS AND BLADES Should it ever be necessary to service or replace the fan motors or blades be certain that the fan blades are reinstalled correctly THE BLADES MUST BE INSTALLED WITH RAISED EMBOSSING PART NUMBER ON PLASTIC BLADES POSITIONED AS INDICATED ON THE PARTS LI
9. 402195 G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 2402195 G 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 serial number of each piece of equipment involved This is to ensure the customer is provided with the correct 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 obviou
10. HUSSMANN LISTED NIM 6 Low Temperature Remote and Self Contained Novelty Ice Cream Island Installation amp Service Manual we i P N 2402195 G exo November 2010 wu Ii P N 2402195 G 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 chilled products only IMPORTANT KEEP IN STORE FOR FUTURE REFERENCE Quality that sets industry standards H u L L m n n n 12999 St Charles Rock Road Bridgeton MO 63044 2483 U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 www hussmann com 2010 Hussmann Corporation TABLE OF CONTENTS ANSI DEFINITIONS vi INSTALLATION Cettificatioh sco taa i xw d wae xw Ed 1 1 Hussmann Product Control 1 1 Shipping Damage 1 1 Location zuo Dite bt poterat e bct tet 1 1 Self Contained Location 1 2 Model Description 1 3 Unloading suos dea m qe re EN 1 3 Exterior Loading e s 1 3 Shipping Skid 43 42 00a eter TP 1 3 Merchandiser Leveling 1 4 Installing Doors 000000 1 4 Serial Plate Location 1 4 Refrigeration Unit Access 1 5 Display Pans ove coven cexa me and 1 6 Air Distribution
11. NTAINED MERCHANDISERS PROPERLY SELF CONTAINED models have vented base panels to allow air circulation through the condensing unit Allow for a minimum 4 in clearance from walls merchandisers and any other large objects near the merchandiser s vented base panels for self contained models Blocking or restricting air flow will adversely affect perfor mance and may damage the refrigeration system Gin NIM 6 36 in P SS ES SK Zero Clearance at Sides 36 in Clearance at Front 36 in Clearance at Rear P N 2402195 G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 www hussmann com P N 2402195 G MODEL DESCRIPTION The NIM 6 is a low temperature self contained cabinet designed for pre packaged frozen food or products that need freezing temperatures for their conservation Design features include self closing glass doors electronic controls reversing condenser fan CFC free foam insulation low side rails and an energy saving balanced refrigeration system A CAUTION Do not walk or put heavy objects on case UNLOADING Unloading from Trailer 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 Improper handling may cause damage to the merchandiser wh
12. ST For access to these fans 1 Remove product and place in a refrigerated area Turn off power to the merchandiser 2 Remove bottom display pans 3 Disconnect fan from wiring harness 4 Remove fan blade 5 Lift fan plenum and remove screws hold ing bottom of motor to fan basket 6 Replace fan motor and blade 7 Lower fan plenum 8 Reconnect fan to wiring harness 9 Turn on power 10 Verify that motor is working and blade is turning in the correct direction 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 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 11 Close air gaps under fan plenum Warmer air moving into refrigerated air reduces effective cooling If the plenum does not rest against the case bottom without gaps apply foam tape to the bottom of the fan plenum to reduce improper air movement Use silicone sealant to close other gaps 12 Reinstall display pans Bring merchandiser to operating temperature before restocking Fan Assembly Fan Blade Airflow Direction Motor Plenum Note Plenum length and number of fans will vary with model NIM 6 Merchandisers 5 2 SERVICE
13. T II TEMPERATURE AND DEFROST CONTROLLER SAFE NET III V USER INSTRUCTIONS Your refrigerated case uses a Hussmann Safe NET III temperature and defrost controller 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 is outside the desired range or if there is 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 Compressor Powered On green Defrost Cycle yellow Temperature or Sensor Alarm red Warm Position Cold Off Position position HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 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 Sensor Evaporator Temperature Sensor Sensor and Switch Common Defrost Termination Switch optional Interface
14. ached 48 F Defrost Initiates at Start Up Defrost Cycle is Temperature Terminated and Will Terminate Immediately When Warm Off Compressor Start Up Off Cycle Safe NET Ill 4 4 5 HUSSmRnm B ng Green Refrigeration O S ty o Green Refrigeration Yellow Defrost O S lt j Yellow Defrost ze LA Red Alarm roe e Red Alarm K OFF Position 7T WARM COLD am Sequence of Operation NIM 6 Apply power to the case Wait for the self check to complete During the self check each LED flashes for 1 second and then all LEDs turn on for 2 seconds IMPORTANT If the LEDs do not flash make sure the adjustment knob is not in the OFF position If the adjustment knob is in the OFF position the display will also be blank 1a If the case is warm at initial start up the defrost will be initiated but will terminate almost immediately The display will show dF until the defrost unlock time expires even though refrigeration has been initiated The green LED will be ON 1b If the case is cold as if it is turned off and then back on the defrost cycle will continue until the termination temperature is reached or the fail safe time has expired The compressor will start three minutes after the power is applied The compressor will continue to run until it reaches its cut out temperature pull d
15. al number of the product U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 www hussmann com Hussmann Corporation Corporate Headquarters Bridgeton Missouri U S A 63044 2483 01 July 2008 Hussmann Corporation 12999 St Charles Rock Road Bridgeton MO 63044 2483 www hussmann com dm Ingersoll Rand
16. city evaporation pan which will overflow if excess water is used in cleaning Do NOT Use Abrasive cleansers and scouring pads as these will mar the finish Coarse paper towels on coated glass Ammonia based cleaners on acrylic parts Solvent 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 Remove the product and all loose debris to avoid clogging the waste outlet Store 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 Disconnect electrical power before cleaning Thoroughly 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 Take care to minimize direct contact between fan motors and cleaning or rinse water Do NOT flood merchandiser with water NEVER INTRODUCE WATER FASTER THAN THE WASTE OUTLET CAN REMOVE IT N WARNING Do NOT allow cleaning agent or cloth to contact food product SELF CONTAINED MODELS EMPTY INTO A CONDENSATE EVAPORATION PAN THAT WILL OVERFLOW IF TOO MUCH WATER IS INTRODUCED DURING CLEANING eAllow merchandisers to dry before resuming operation eAft
17. d outside of the designated load limits in the illustration HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A NIM 6 Merchandisers 3 10 START UP OPERATION TEMPERED GLASS DOORS Doors are manufactured with tempered glass mounted in PVC frames Doors are self closing to reduce the heat gain and increase energy efficiency Keep doors closed during start up Allow merchandiser 24 hours to operate before loading product Load only with pre chilled product Tempered Glass Doors Discharge Honeycomb Display Pans 4 n LT AN Electrical Box Temperature Controls P N 2402195 G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 2402195 G 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 capa
18. e and charge Do not remove the serial plate under any circumstance P N 2402195 G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 2402195 G 1 5 REFRIGERATION UNIT ACCESS If the condensing unit needs to be serviced it The louvered grille provides access to the con can be pulled out to gain access for hard to denser unit and the electric connection box reach components like the condenser fans Remove the screw at each end Lift the grille To pull out the condensing unit remove the up then pull it out from each side The grille two hold down brackets at the unit base frame has slots that fit over studs in the cabinet as shown in the photograph Defrost Water Evaporation iE S Pan ww 1 4 Des di Safe NET Ill Wu Control d mnia Hold Hold Down Down Bracket Bracket Grille or Louvers Required for Air Flow Condensing Unit Access Care must be given to the drain line when re inserting the condensing unit back into the case The drain line must be inside the defrost water evaporation pan to prevent the discharge of water on the floor HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A NIM 6 Merchandisers 1 6 INSTALLATION Drain Line must be Over Evaporation Pan Display Pans Note Drain line does not move when condensing unit is pulled out as shown here AIR DISTRIBUTION Defrost Water Evaporation Pan The NIM 6 is a cabinet are sensi
19. eater T Bottom Door Frame A S Heater B 1 A cep oer r BK Top Door Frame Antisweat Heater 3 W BK BK 6 L BK BK Back Coil Defrost Heater J W Front Coil Defrost Heater W BK BK BK Wy WU BK Y e mi AC Line Supply Defrost Heater optional Wiring Diagram NIM 6 Part 1 28 BK Connects WY y WAVY on Y Wy BK BK Wy A BK BK BK Defrost next page Limit HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A NIM 6 Merchandisers A 6 APPENDIX A WIRING DIAGRAMS A WARNING
20. en unloading To avoid damage 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 EXCESSIVE EXTERNAL LOADING such as the weight of a person Do not place heavy objects on the merchandiser SHIPPING SKID Each merchandiser is shipped on a skid to protect the merchandiser s base and to make positioning the case easier Remove the top of the crate and detach walls from each other Lift crate from the skid Unscrew the case from the skid The fixture can now be lifted off the crate skid Lift only at base of skid Remove any braces and or skids attached blanket wrapped merchandiser may have skids DO NOT TILT MERCHANDISER ON ITS SIDE OR END WHEN REMOVING SKID Tilting merchandiser could cause damage to the refrigeration system Once the skid is removed the merchandiser must be lifted NOT PUSHED to reposition To remove the skid remove screws attaching skid to the merchandiser Check floor where cases are to be set to see if it is a level area Determine the highest part
21. er cleaning is completed turn on power to the merchandiser NIM 6 Merchandisers 4 2 MAINTENANCE A WARNING LOCK OUT TAG OUT To avoid serious injury or death from electrical 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 CLEANING DISCHARGE HONEYCOMB Discharge air honeycomb should be cleaned every six months Dirty honeycomb will cause merchandisers to perform poorly The honeycomb may be cleaned with a vacuum cleaner Soap and water may be used if all water is removed from the honeycomb cells before replacing Be careful not to damage the honeycomb 1 Using a flat object such as a screw driver behind the rear edge of the honeycomb on on the right hand end and gently pull down 2 Clean with a mild detergent and warm water and dry the honeycomb 3 After cleaning replace in reverse order Damaged honeycomb must be replaced A 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 cleansers or scouring pads P N 2402195 G CLEANING COILS The NIM 6 is equipped with a reversing con denser fan During the defrost cycle it reverses the air flow through the condenser to remove the collected debris This feature will reduce
22. ered before attempting any connection or repair Oil Traps P traps oil traps must be installed at the base of all suction line vertical risers P N 2402195 G Pressure Drop Keep refrigerant line runs as short as possible to avoid large pressure drops Use a minimum number of elbows Where elbows are required USE LONG RADIUS ELBOWS ONLY A CAUTION When brazing pipes be sure to use the insulation blanket shipped with the merchandiser to prevent damage to the metal merchandiser bottom WATER OUTLET AND WATER SEAL The cabinet is provided with a factory installed outlet for defrost water It runs from the bottom of the display area to an evaporation pan near the condenser unit The outlet is not connected to the waste water system for washing out the cabinet This system is designed to evaporate normal condensate This system should be checked regularly especially during high relative humidity conditions to verify the condensate tube is not blocked and that the pan does not accumulate too much water which could spill out on the floor A 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 2402195 G START UP OPERATION ATTENTION INSTALLER It is the contractor s responsibility to install merchandiser s in accordance with all local building and health codes Safe NE
23. erflow and spill onto the floor if the heater is not properly operating Remove accumulated debris from the evapora tion pan Wipe down heater coil with a cloth and warm water Be sure to remove any dirt debris or liquids from the heater coil Water introduced during cleaning will cause the evaporation pan to overflow PRECAUTION CLEANING PRECAUTIONS When Cleaning Do not use high pressure water hoses Do not introduce water faster than waste outlet can drain NEVER INTRODUCE WATER ON SELF CONTAINED UNIT WITH AN EVAPORATION PAN 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 TO PRESERVE THE ATTRACTIVE FINISH Use a water and a mild detergent for the exterior only Do NOT use a chlorinated cleaner on any surface Do NOT use abrasives or steel wool scouring pads these will mar the finish HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A NIM 6 Merchandisers 4 4 MAINTENANCE CLEANING UNDER FAN PLENUM To facilitate cleaning the fan plenum is hinged After cleaning be sure the plenum is properly lowered into position OR PRODUCT LOSS WILL RESULT due to improper refrigeration Evaporator Fan Assembly A WARNING SHUT FANS OFF DURING CLEANING PROCESS CLEANING STAINLESS STEEL SURFACES Use non abrasive cleaning materials and always polish with grain of
24. ference between the two tempera tures is 3 F to 5 F Make adjustments of no more than 2 turn of the valve stem at a time and wait for at least 15 minutes before rechecking the probe tempera ture and making further adjustments Probe Locations U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 2402195 G 3 9 LOAD LIMITS Each merchandiser has a load limit decal Shelf life of perishables will be short if load limit is violated N WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area L ee AT NO TIME SHOULD MERCHANDISERS BE STOCKED BEYOND THE LOAD LIMITS INDICATED DO NOT BLOCK HONEYCOMB STOCKING Load Limit 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 AND RETURN FLUES MUST REMAIN OPEN AND FREE OF OBSTRUCTION AT ALL TIMES to provide proper refrigeration and air curtain performance Do not allow product packages signs etc to block these grilles Do not use non approved shelving baskets display racks or any accessory that could hamper air curtain performance Do not allow product to be place
25. he electrical box Receptacle NIM 6 REFRIGERATION Self Contained Models Each self contained model is 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 s serial plate The merchandiser refrigeration piping is leak tested The unit is charged with refrigerant and shipped from the factory with all service valves open A WARNING LOCK OUT TAG OUT To avoid serious injury or death from electrical 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 NIM 6 Merchandisers 2 2 INSTALLATION CAUTION Risk of Electric Shock If cord or plug becomes damaged replace only with a cord and plug of the same type A WARNING Merchandiser must be grounded Do not remove the power supply cord ground 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 3 8 in The suction line is 3 8 in Refrigerant lines should be sized as shown on the refrigeration legend that is furnished for the store or according to ASHRAE guidelines A WARNING Refrigeration lines are under pressure Refrigerant must be recov
26. l knob to maintain the discharge air temperature shown Measure discharge air temperatures at the center of the honeycomb Defrosts are time initiated and temperature terminated for self contained and remote including Koolgas models The defrost setting is factory set as shown above To ensure a thorough defrost defrost must be terminated by the temperature termination setting not by time NIM 6 Merchandisers 3 8 START UP OPERATION THERMOSTATIC EXPANSION VALVE TEV Each self contained merchandiser has its own evaporator coil and a pre set thermostatic expansion valve TEV The TEV has been factory set at design conditions to provide the recommended performance Remove the fan panel to expose the thermostatic expansion valve TEV ADJUSTMENT Expansion valves may be adjusted to fully feed the evaporator Before attempting to adjust valves make sure the evaporator is clear or only lightly covered with frost and the merchandiser is within 10 F of its expected operating temperature Adjust the valve as Follows a Attach a probe to the suction line near the expansion valve bulb Drain Trough Heater Sensor Locations P N 2402195 G b Obtain a pressure reading from the factory installed Schraeder valve Convert the pressure reading to a saturated temperature for the refrigerant Temperature b minus Temperature a 1s the superheat The valve should be adjusted so that the greatest dif
27. of the floor Unpack door and all packaged accessories NIM 6 Merchandisers 1 4 INSTALLATION MERCHANDISER LEVELING BE SURE TO POSITION MERCHANDISERS PROPERLY Level the merchandiser by all four corners Merchandiser s must be installed level to ensure proper operation of the refrigeration system and to ensure proper drainage of defrost water Lock casters to prevent movement then adjust top nut to level each corner Nut for E Leveling Leveling Figure 3 Figure 2 C Align Top of Inside Door i Positioned Inside Door l in Upper and Lower INSTALLING DOORS T The doors are shipped in a separate crate located on top of the case crate Install as follows 1 Position the interior left hand door as shown in Figure 1 Hook the upper right corner onto the automatic closing mechanism then push to the right SERIAL PLATE LOCATION 2 Rotate the top into the upper track while keeping the bottom of the door angled out The serial plate is located INSIDE the as shown in Figure 2 condensing unit compartment on the end 3 Align the bottom of the door with the opposite the condensing unit as shown on the lower track then push into place as shown following page The grille must be removed for in Figure 3 access to the serial plate The serial plate con 4 Repeat 1 2 and 3 for the exterior right tains all pertinent information such as model hand door serial number amperage rating refrigerant typ
28. ompressor RLA 11 8 Minimum Circuit Ampacity 115V 1Ph 60Hz Standard 13 5 Maximum Over Circuit Protection 208 230V 20 Product Data NIM 6 AHRI Total Display Area Sq FtlCase 13 229 ft case 1 229 m case Interior Useful Capacity Cu FtlCase 21 27 602 3 liters case Energy Consumption tested per ARI 1200 15 82kWh day Computed using AHRI 1200 standard methodology Total Display Area ft m Unit of Length ft m ESTIMATED SHIPPING WEIGHT Case Self Contained Remote End Ib kg 800 363 742 337 Included 2 Actual weights will vary according to optional kits included P N 2402195 G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com APPENDIX A WIRING DIAGRAMS NIM 6 A 5 WIRING EXAMPLES Safe NET III Controller Evaporator Temperature Sensor P227 Control Sensor Pb1 2H Digital Input D I Sl e Common Line 2 Interface box and copy card TTL connector La Defrost termination Switch NO optional Optional Evaporator Sensor control Sensor Air Space 90 240Vac Compressor L Line Supply POMPLESSON a 5 AC Line Supply Defrost Fan optional Phase AC Line Supply Evaporator Fan BK BK W L Bottom Unit Coil Defrost Heater BK e l i2 Top Door Frame Antisweat Heater H T W B 13 ottom Door Frame A S H
29. or Compressor Off Time If On Time If Sensor Failed Sensor Failed On Compressor Status Off On Off On Off Time MANUAL DEFROST 4 E S o Note N This procedure initiates 7 M Noe ean a manual or forced defrost 1 Note location of knob setting m Rotate knob fully counterclockwise until it stops full warm OFF position 7 N Warm Cold e 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 2402195 G Safe NET III W M 4 5 HWS dP COLD OX o USS MAN O Display at Full Cold OW Model NIM 6 3 5 Safe NET III Control OFF Position Set at Full Cold Position Safe NET Ill SL oq 4 5 HUSSmRhn Display at 1 Position Model NIM 6 OM 2 s WARM dm Safe NET III Control 1 Position TEMPERATURE ADJUSTMENT 1 Rotate the adjustment knob counter clock wise for a warmer setpoint or clockwise for a colder setpoint The control has protective settings to prevent short cycling of the compressor A The compressor may run for up to 60 sec after Step 2 is completed Start the 10 sec count down for Step 3 once the display is blank The defr
30. ost initiation may be delayed for up to 120 sec after Step 3 is completed 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 B in the merchandiser 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 The display will show dF once Step 3 is com pleted even with the protective delay timing out The dF will display for awhile after defrost has terminated to allow the temperature to stabilize HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A NIM 6 Merchandisers 3 6 START UP OPERATION Typical Sensor to Control Configuration Black Air Yellow Sheath Evaporator Sensor Defrost Termination Black A Black Sheath Evap 25224 Air Sensor Display Jta ATA L N White Common for Both Sensors Yellow Sensor Defrost Termination Evaporator Black Sensor Control Air Control Sensor Black Sheath Evaporator Sensor Defrost Term inserted into the Evaporator Fins or into the Suction Line Yellow Sheath Black Air Sensor 8 Black Evaporator Sensor 9 11 Not Used White Common Both Sensors n Detail A SENSOR TO CONTROL CONFIGURATION The defrost termination sensor is located aoe cdi through a hole in the coil cover EE Def
31. own Q The refrigeration cycle will continue until the next scheduled 8 hours or demand defrost amp and will repeat until power is interrupted If power is interrupted sequence will start at Defrost will be initiated and the time to subsequent defrost will reset HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A NIM 6 Merchandisers 3 4 START UP OPERATION 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 temper ature is set the display reverts to showing the sensed temperature in the merchandiser ALARMS AND CODES FLASHING TEMPERATURE OR SENSOR ALARM LED El or E2 If the Temperature or Sensor Alarm LED red on the controller and display is flashing a temperature sensor has failed The display shows El if the case sensor has failed or E2 if 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 2402195 G DEFROST TERMINATION SWITCH Merchandisers may use a defrost termination switch instead of an evaporator sensor to terminate a defrost cycle The defrost termination switch is temperature activated and senses the completion of defrost Compress
32. refrigeration unit fan or heater 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 N 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 2402195 G 3 3 Compressor Starts Time to Subsequent Defrost 8 hrs or Demand Defrost Time to Subsequent Defrost 2 Min Drip Time 8 Hrs or Demand Defrost 3 Minute Time Delay Until Pull down Refrigeration Pull down After Refrigeration Compressor Starts Maximum Compressor Cycle Maximum r Defrost Cycle Defrost Time 45 Minutes Fail Safe Defrost Time 45 Minutes Fail Safe On Compressor On Defrost Cycle Will Terminate Once the Termination Temperature is Reached if Case is Cold Turned Off and Back On Defrost Cycle Terminates Once the Termination Temperature is Re
33. rost The control sensor shown at right is located in Control rede the discharge air grille and the defrost termina T Yellow tion sensor is inserted into the evaporator fins in the through an opening in the coil center This Discharge sensor is shown pulled out of the evaporator sale for illustration rt P PRISE un Sensor Locations P N 2402195 G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 2402195 G 3 7 CONTROLS and ADJUSTMENTS Refrigeration Defrost Controls Controls Model Product Discharge Air Defrost Typeof Termination Failsafe Application Temperature Frequency Defrost Temperature Time per day Minutes NIM 6 Frozen Food 20 F to 10 F 3 Electric 48 F 50 Remote amp and novelty Self Contained Ice Cream Your Case Configuration Factory Setting Average product temperature 10 F Knob position 5 Adjustment knob has OFF position Delay before compressor runs after startup Delay Time 30 sec Compressor operation if case sensor fails Compressor On What the display shows during defrost The case defrosts when the power is v Yes turned on The method used to end defrost Evaporator Sensor Temperature Defrost terminated by termination switch HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 1 The Safe NET III Controller controls refrig eration temperature This is factory installed in the control panel Adjust this contro
34. s 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 is maintained at or below the ANSI NSF 7 specified level and relative humidity is maintained at or below 55 Recommended operating ambient temperature is between 65 F 18 C to 80 F 26 7 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 currents 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 NIM 6 Merchandisers 1 2 INSTALLATION SELF CONTAINED LOCATION Product should always be maintained at proper temperature This means that from the time the product is received through storage preparation and display the temperature of the product must be controlled to maximize the life of the product BE SURE TO POSITION SELF CO
35. smann com P N 2402195 G 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 for 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 All wiring must be in compliance with NEC and local codes All electrical connections for remote models are to be made in the electrical Handy Box located behind the removable base panel at the left end of the merchandiser when facing the discharge honeycomb ELECTRICAL OUTLET Before the merchandiser is connected to any wall circuit use a voltmeter to check that the outlet is within the recommended voltage limits Nominal Volts 120V HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A The wall circuit must be dedicated for the mer chandiser 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 If in doubt call an electrician Self contained models have factory installed power cords attached at NEMA 5 20P t
36. t 40 1015 Note Includes bumper P N 2402195_G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com APPENDIX A TECHNICAL DATA A 16 406 A 31 3 8 42 5 8 797 1083 ae 743 159 gE d zu B E 95 PAN Y y j B 3 8 FRONT 2 22 p lt 8 1 8 559 206 12 1 2 318 29 3 8 746 gt ta 40 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A A 3 REFRIGERATION DATA Note This data is based on store temperature and humidity that does not exceed 80 F and 55 R H unless otherwise stated Schedule defrost at night while lights are off NIM 6 Thermostat Setting CI CO F Position 1 5 5 Position 7 18 28 Condensing Unit hp 3 4 Condensing Unit Capacity 3100 Btu hr at std rating conditions DEFROST DATA Frequency hr 3 OFFTIME Failsafe minutes 50 Defrost Termination Pressure psig 48 F PHYSICAL DATA Refrigerant Charge NIM 6 34 oz 0 964 kg NIM 6 Merchandisers A 4 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 NIM 6 Number of Fans 4W 1 Amperes Watts Evaporator Fans 115V 60Hz Standard 0 29 16 Condensing Unit 208 230V 1Ph 60Hz Standard Compressor LRA 56 C
37. tive to air disturbances Air currents passing around DISPLAY PANS cabinets will seriously impair their operation The cabinet NIM 6 ships with three display DO NOT allow air conditioning electric fans pans which must be placed correctly at all open doors or windows etc to create air cur times Never operate the cabinet without the rents around the cabinets display pans as this would adversely affect the interior airflow and raise the temperature Follow the minimum clearance requirements 36 inches 915 mm on each side service doors To access the display pans first remove the Zero clearance for each end is acceptable wire baskets Lift the pans using the holes at Tempered glass doors are self closing Keep each side The pans MUST BE IN PLACE for the doors closed during operation merchandiser to operate properly SEALING MERCHANDISER TO FLOOR 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 variation there is in the floor from one end of the merchandiser to the other Sealing of the lower front and rear panels on self contained models 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 P N 2402195 G U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 www hus

warning

Contents

Download Pdf Manuals

Related Search

Related Contents