hussman P/N 0387183_D User's Manual
Contents
1. Important Please read This thermometer is provided in response to United States Food and Drug Administration US FDA Food Code http www fda gov National Sanitation Foundation NSF ANSI Standard 7 http www nsf org Each installation will be different depending on how the unit is stocked shopping patterns in the department and ambient conditions of the store The suggested loca tions provided herein are possible locations It is the responsibility of the purchaser user to determine the location within the food storage area of the unit that best meets the code requirements above The thermometer may need to be moved several times to find the warmest location Mounting options include flexible plastic for price tag molding application magnet applied to back of flexible plastic for steel end wall and double stick tape Tape must not be exposed after installation Questions about either code should be addressed to local agencies or other appropriate officials Keep with merchandiser or give to store manager DO NOT DESTROY P N 0387183 D WWW HUSSMANN COM P N 0501904_A 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 mini mum maintenance costs these merchandisers should be thoroughly cleaned all debris removed and the interiors washed down weekly Fan Plenum To facilitat2. When brazing pipes be sure to use the insulation blanket shipped with the merchandiser to prevent damage to the plastic case bottom Multiplexing Piping of merchandisers operating on the same refrigeration system may be run from merchan diser to merchandiser through the end frame saddles provided for this purpose Do NOT RUN REFRIGERANT LINES THROUGH MERCHANDISERS THAT ARE NOT ON THE SAME REFRIGERATION SYSTEM as this may result in poor refrigeration control and compressor failure HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A REFRIGERATION ELECTRICAL 2 1 NOTE If Gas defrost is used the liquid line will need to be increased two sizes larger inside the merchandiser area This is necessary to ensure even liquid drainage from all evaporators during defrost Line Sizing Refrigerant lines should be sized as shown on the refrigeration legend that is furnished for the store or according to ASHRAE guidelines Oil Traps P traps oil traps must be installed at the base of all suction line vertical risers Pressure Drop Pressure drop can rob the system of capacity To keep the pressure drop to a minimum keep the refrigerant line run as short as possible using a minimum number of elbows Where elbows are required USE LONG RADIUS ELBOWS ONLY INSULATION With GAS Defrost The suction and liquid lines should NOT contact each other and should be insulated separately for a minimum of 30 ft 9144 mm from the
3. Use PRESTOLITE TORCH ONLY Number 6 tip Maintain separate set of stainless steel brushes and USE ONLY ON ALUMINUM Tin surface around area Brush tinned surface UNDER HEAT thoroughly filling the open pores around leak Repair leak Let aluminum melt solder NOT the torch Don t repair for looks Go for thickness Perform a leak check Wash with water Cover with a good flexible sealant WWW HUSSMANN COM re 5 s X To ob M RY M warranty information Q0 K M er support contact your Ge u Gy wan NM representative SA PN ase include the model and Q serial number of th oe e product te OG s PN S es a n S es eS eo we
4. 1 4 in Socket 5 16 in Socket 1 2 in Socket Battery Drill Screw Gun Caulking Gun 10 in Adjustable Crescent Wrench P N 0387183_D REVISION D SEPTEMBER 2007 Added front panel text and illustration Page 1 2 Clarified shimming directions page 1 3 Added RLT information throughout Added note to remove bumper protective film Page 1 6 Added information on Always Clear glass page 5 1 Removed reference to Anthony doors Page 6 5 Added repairing aluminum coil Page 6 12 Changed warranty page ee ee ROME E CE E NE Added Installation Tool List page iv Added revision history page iv REVISION C JUNE 2002 1 Added NSF information pages 1 1 4 2 through 4 4 2 Sections 2 through 6 are completely rewritten 3 Changed warranty to March 15 2002 P N 0387183_D NSF 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 certi fied 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 LOCATION These merchandisers are designed for displaying
5. 6 4 SERVICE REPLACING ELECTRIC DEFROST HEATERS RLT Only RLT electric defrost heaters are located under 1 Disconnect Power the coil as shown in the photo below Mounting brackets and supports are attached to plenum 2 Remove lower back panels to access the brackets heater 3 Lift fan plenum up and back to access the heater 4 Remove heater from bracket 5 Position new heater in bracket 6 Close the bracket with the element support 7 Turn on power 8 Verify that heater is working correctly Defrost Heater RLT Defrost Heater s Heating Element Support CS LH Plenum Mounting Bracket RH Plenum Mounting Bracket Heating Element Support This view shows one bracket assembly typical on 2 door case two assemblies are used on 3 door case three on 4 door four on 5 door case E P N 0387183 D WWW HUSSMANN COM P N 0387183_D REPLACING DRAIN PAN HEATER ELECTRIC AND GAS DEFROST Low Temperature Only The drain pan heater is located as shown below Remove Drain Pan Heater 1 Disconnect power 2 Pull heater out from under jiffy clips 3 Position new heater under jiffy clips Be sure offset 1s properly positioned around the drain If jiffy clips are removed make certain sealer is replaced 4 Reconnect power 5 Verify that heater is working correctly Sealer HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Side View 6 5 WARNING Always disconnect the electric
6. 8 1 1 8 7 8 1 3 8 1 1 8 1 8 1 3 8 2 1 8 Take offs to evaporators exit the bottom of the liquid line Provide an expansion loop for each evaporator take off minimum 3 in 76 mm diameter Koolgas Defrost Liquid Line Two Sizes Larger in Merchandiser P N 0387183_D Liquid Manifold To Suction Manifold WWW HUSSMANN COM P N 0387183_D EXPANSION VALVE ADJUSTMENT Expansion valves must be adjusted to fully feed the evaporator Before attempting to adjust valves make sure the evaporator 1s either clear or only lightly covered with frost and that the merchandiser is within 10 deg F 6 5 deg C of its expected operating temperature Adjust valves as follows Attach two sensing probes either thermocouple or thermistor to the evaporator Position one under the clamp holding the expansion valve bulb securely tape the other to the coil inlet line Some hunting of the expansion valve is normal The valve should be adjusted so that during the hunting THE GREATEST DIFFERENCE BETWEEN THE TWO PROBES IS 3 5 deg F 1 7 2 8 deg C With this adjustment during a portion of the hunting the temperature difference between the probes will be less than 3 deg F 1 7 deg C and at times 0 Make adjustments of no more than 1 4 turn for Balanced Port TEV and 2 turn at a time for other valve models Wait at least 15 minutes before rechecking the probe temperature or making further adjustments
7. center return bend If an optional adjustable thermostat is used the bulb will be clamped to the suction line on the left end of the case HUSSMANN CORPORATION BRIDGETON MO 63044 2483 U S A 2 5 SECT PY ELECTRIC ELECTRIC DEFROST ONLY Defrost Termination Thermostat Location Reach In 2 6 REFRIGERATION ELECTRICAL CONTROL SETTINGS MEDIUM TEMPERATURE Conventional Single Compressor Measure Discharge Air Temperature at the center of the case at the discharge honeycomb Merchandiser temperature must be controlled by a thermostat or other device with a 3 6 deg F 1 7 3 3 deg C differential It will be wired to control the compressor motor contactor Standard Off Time defrost 1s temperature termi nated The defrost termination thermostats for all the merchandisers on one compressor are wired in series On outdoor units the defrost timer will control a liquid line solenoid beginning a defrost pumpdown 4 minutes before defrost The defrost frequency and lengths listed may require adjustment for specific store conditions Factors include Store temperature and humidity Low head pressure Long refrigerant line runs Seasonal changes Merchandiser temperature lower than recommended When practical defrost when store is closed Low pressure control settings are applicable to outdoor condensing units where ambient does not fall below O deg F P N 0387183_
8. to avoid clogging the waste outlet Store product in a refrigerated area such as a freezer Remove only as much product as can be taken to the freezer in a timely manner First turn off refrigeration then disconnect electrical power 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 PERFOR MANCE Remove screws and lift hinged fan plenum for cleaning BE SURE TO REPOSITION THE FAN PLENUM AFTER CLEANING MERCHANDISER Take care to minimize direct contact between fan motors and cleaning or rinse water Rinse with hot water but do NOT flood NEVER INTRODUCE WATER FASTER THAN THE WASTE OUTLET CAN REMOVE IT Allow merchandisers to dry before resuming operation After cleaning is completed turn on power and refrigerant to the merchandiser Verify that merchandiser is working properly Reach In 5 2 MAINTENANCE CLEANING HONEYCOMB ASSEMBLIES Honeycombs should be cleaned every six months Dirty honeycombs will cause merchandisers to perform poorly The honeycombs may be cleaned with a vacuum cleaner Soap and water may be used if all water is removed from the honeycomb cells before reassembling Be careful not to damage the honeycombs 1 Remove the sheet metal screws located in the front metal retainer which holds the honey comb assembly in place 2 Lift the honeycomb assembly
9. CING DAMAGED DRAIN FITTING The following procedure is for the field repair of a broken drain fitting 1 Use a drill with a 17 s inch 48 mm hole saw to drill out the bottom of the drain fitting Be sure to drill completely through fitting and bottom liner P Drain Fitting Viewed from Inside Case 2 Apply teflon tape to threaded end of adapter and screw into threaded end of tee 3 Apply an ABS and PVC compatible primer and sealer to adapter and inside of drain Insert adapter into drain fitting Foam Bottom Assembly EN Modified PVC Adapter Drain Fitting 11 2 x 1 4 in 38 x 32 mm obtained at local building supply store Tee 11 4 in TXSxS 32 mm End Section View Reach In 6 10 SERVICE REPAIRING ALUMINUM COIL The aluminum coils used in Hussmann merchan disers may be easily repaired in the field Materials are available from local refrigeration wholesalers Hussmann recommends the following solders and technique Solders Aladdin Welding Products Inc P O Box 7188 1300 Burton St Grand Rapids MI 49507 Phone 1 800 645 3413 Fax 1 800 645 3414 X Ergon 1570 E Northgate P O Box 2102 Irving TX 75062 Phone 1 800 527 9916 NOTE Hussmann Aluminum melts at 1125 F 607 C Aladdin 3 in 1 rod at 732 F 389 C X Ergon Acid core at 455 F 235 C P N 0387183_D Technique l 2 10 11 12 Locate Leak REMOVE ALL PRESSURE Brush area UNDER HEAT
10. D CONTROL SETTINGS LOW TEMPERATURE Conventional Single Compressor Measure Discharge Air Temperature at the center of the case at the discharge honeycomb Merchandiser temperature must be controlled by a thermostat or other device with a 3 6 deg F 1 7 3 3 deg C differential It will be wired to control the compressor motor contactor Standard Electric defrost is temperature terminat ed The defrost termination thermostats for all the merchandisers on one compressor are wired in series Failsafe must not control defrost cycle length especially when less than 208V power supply is used for defrost heaters or if frost build up is heavy from shopping demands On outdoor units the defrost timer will control a liquid line solenoid beginning a defrost pump down 4 minutes before defrost Optional Gas defrost is time terminated and has fan cycling thermostat The defrost frequency and lengths listed may require adjustment for specific store conditions Factors include Store temperature and humidity Low head pressure Long refrigerant line runs Seasonal changes Merchandiser temperature lower than recommended When practical defrost when store is closed Low pressure control settings are applicable to outdoor condensing units where ambient does not fall below O deg F WWW HUSSMANN COM P N 0387183_D CONTROL SETTINGS MEDIUM TEMPERATURE Parallel Compressor Rack Measure Discharge Air Temperature at the center of t
11. HUSSMANnN NSF 4 M PAC Ts merchandisers Reach in Merchandisers Medium and Low Temperature Cases Installation amp Operation Manual Shipped With Case Data Sheets P N 0387183_D Impact Series October 2007 P N 0387183_D Table of Contents INSTALLATION START UP OPERATION NSF Certification 0 e e eee 1 1 UL 4 TO 1 1 LOCKING gee ane een ara warp wee Gore Banaue 4 Shipping Damage lessen 1 1 Load LiMilS ECT 4 1 Extenor Loading 2302 iec5 lt 004edceudaieet 1 2 Load Limit Profiles 00404 4 Merchandisers Shipped With End Installed 1 2 Installing FDA NSF Required Thermometer 4 2 Shipping Braces 0 0 e eee eee 1 2 Remove Front Panel 1 2 MAINTENANCE ey CMe E hee ea bee ee H K E 1 3 Care and Cleaning nanne 5 Door Adjustment 0 0 0 0 eee eee 1 4 Cleaning Honeycomb Assemblies 5 2 JOUNING 222899 bua vageteuenandeoecne ss 1 4 Cleaning Under Merchandisers 5 2 Installing Splashguard Brackets 1 4 Removing Scratches from Bumper 5 2 Installing Bumpers 1 5 SERVICE REFRIGERATION ELECTRICAL Replacing Fan Motors and Blades 6 1 REMCCIAN Tr 2 1 Replacing Electric Defrost Heaters 6 3 Refrigerant Piping 0 0 cee eee 2 1 Replacing Drain Pan Heater 6 5 Insulation 2 ee ees 2 1 RLT with Gas Defrost Only Replacing Branch Line Piping 2 2 Slave Plate Heater 6 6 Exp
12. Manifold HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 2 3 REFRIGERATION THERMOSTAT The thermostat body is located in the electrical raceway near the right hand end of the merchan diser Its sensing bulb is located behind the right end interior back panel Check Valve Optional Heat Gas Bypass Exchanger body Expansion Valve Expansion Valve Bulb Component Location in RL RM RLN RLNI Models Sc CER Thermostat Reach In REFRIGERATION ELECTRICAL 2 4 XS 3 PF d y CUAL en EN R ALE x Check Valve Optional X P LA bY 8 Y re A Q E B AN D 9 Y 25543 RY x D o 5 0 oF IN Lu c Neary a ims SON 2 t e Jo c T lt Q eS pete I DY C O 5 Q lt N WWW HUSSMANN COM Component Location in RLT Models P N 0387183_D P N 0387183_D DEFROST TERMINATION THERMOSTAT The standard disc type defrost termination ther mostat is not adjustable On low temperature merchandisers the defrost termination thermostat or optional termination sensor is located on the right end of the coil at the bottom
13. SSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Do NOT install the last bumper sections at this time These sections will be installed in the last Step Once all except the last section of bumper have been installed refrigerate the case line up for at least six 6 hours The last sections of bumper should be kept inside a refrigerated case or cooler during this time to allow the bumpers to contract Before installing the last full length section measure the remaining space Use a miter box and fine tooth saw to cut last bumper to length Install the last section yo Miter Box Reach In 1 6 INSTALLATION Remove protective film from bumpers once installation is complete Optional end bumpers are factory installed P N 0387183 D WWW HUSSMANN COM P N 0387183_D REFRIGERANT The correct type of refrigerant will be stamped on each merchandiser s serial plate which is located on the left hand end of the interior top liner WARNING Refrigeration lines are under pressure and should be depressurized before attempting to make any connections REFRIGERANT PIPING Connection Location The refrigerant line connections are at the right hand end of the merchandiser as viewed from the front beneath the display pans After connections have been made seal this out let thoroughly Seal both the inside and the out side We recommend using an expanding polyurethane foam insulation CAUTION
14. WWW HUSSMANN COM P N 0387183 D DRIP PIPING AND SPLASHGUARDS 3 1 WASTE OUTLET AND WATER SEAL CAUTION The waste outlet location varies for each of the 1 2 3 4 and 5 door merchandisers Drip piping is Splashguard brackets MUST be installed located between the front case base and the before piping case splashguard fixture and runs parallel to the case See Page 1 3 see Data Sheet for exact locations 4 Avoid long runs of drip piping Long runs make it impossible to provide the pitch neces INSTALLING DRIP PIPING sary for good drainage Poorly or improperly installed drip pipes can seriously interfere with the merchandiser s opera tion and result in costly maintenance and product losses Please follow the recommendations listed below when installing drip pipes to ensure proper installation 5 Provide a suitable air break between flood rim of the floor drain and outlet of drip pipe To meet code on low base merchandisers it may be necessary to install a field supplied drip pipe reducer An alternative 1s to cut the last section of drip pipe at an angle 1 Never use drip piping smaller than the nomi nal diameter of the pipe or water seal sup plied with the merchandiser 6 Prevent drip pipes from freezing A Do NOT install drip pipes in contact with uninsulated suction lines Suction lines should be insulated with a non absorbent insulation material 2 When connecting drip piping the water seal m
15. al power at the main disconnect when servicing or replacing any electrical component This includes but is not limited to such items as fans heaters thermostats and lights Detail Screw E Jiffy Clip Reach In 6 6 SERVICE RLT with GAS DEFROST ONLY REPLACING SECONDARY PLATE HEATER The secondary plate heater is located as shown below Remove Secondary Plate Heater 1 Disconnect power Slide Rod Heater 2 Pull heater out from under jiffy clips Under Tabs Lightly Press Down on Tabs 3 Position new heater under jiffy clips Be sure offset 1s properly positioned around the drain If jiffy clips are removed make cer tain sealer is replaced 4 Reconnect power 5 Verify that heater is working correctly Rear Secondary Plate and Heater Front Secondary Plate and Location for se Heater Standoff Lock Clips oN BE ww pum a i S ER a y GAA SA SAO EROR KAN BESSA Interlock Plates Together as and Attach to d Harness WARNING 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 fans heaters thermostats and lights P N 0387183 D WWW HUSSMANN COM P N 0387183_D 6 7 REPLACING LAMP BALLAST OTHER THAN RLT MODELS The lamp ballasts are located in the electrical C Lift the front p
16. anel up and out from the raceway in the left hand end of the merchandiser front of the case Tabs on front panel must clear slots on bumper retainer To gain access 1 Disconnect the electrical power to the light 3 Service or replace ballasts as required fixture 4 Reinstall front panel by sliding it into bumper 2 Remove the front panel retainer slots then reinstall screws A Pull off the bumper B Remove screws from bumper retainer 5 Install bumper NOTE The front panel is attached by 2 screws two door 6 Restore power to merchandiser 3 screws three door 4 screws four door 5 screws five door to the front panel Ballas Lift up on R Front iod died Panel Screws ut Ballasts Bumper Retainer HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Reach In 6 8 SERVICE REPLACING RLT LAMP BALLAST The lamp ballasts are located in the electrical raceway in the left hand end of the merchandiser To gain access 1 Disconnect the electrical power to the light fixture 2 Remove the front panel Lift the front panel up and out from the front of the case 3 Service or replace ballasts as required 4 Reinstall front panel 5 Restore power to merchandiser RLT Wiring Routed Up Through Top Panel to Wireway on Top Door Frame and Door Heater Field Wiring Routed Through Connection Ballast Tray into Wireway ae Knock outs gt Wirew
17. anent location and then remove all packag ing Check for damage before discarding packag ing Remove all separately packed accessories such as kits and shelves REMOVE FRONT PANEL DOES NOT APPLY TO RLT Before setting case remove the front panel as follows remove screws from front panel tabs then lift the front panel Refer to the illustration below Set panel and screws aside to reinstall once all electrical work is complete Edge Fits Over Raceway Tabs Fit in Retainer Slots Front Panel Remove Screws At completion of all electrical work installation contractor shall re install the panels using care to ensure all panels are centered and properly fastened Locate the shipping block in the center of the heat exchanger see illustration and remove it before piping the merchandiser This block was installed to minimize shipping vibration DOA Heat Exchanger Shipping Block P N 0387183_D Top View of Merchandiser WWW HUSSMANN COM P N 0387183_D LEVELING Merchandisers must be installed level to ensure proper operation of the refrigeration system and to ensure proper drainage of defrost water When leveling merchandisers use a carpenter s level as shown Metal leveling shims or wedges are provided with each merchandiser for use if needed NOTE BEGIN LINEUP LEVELING FROM THE HIGHEST POINT OF THE STORE FLOOR Place
18. ansion Valve Adjustment 2 3 Removing RLT Return Air Bracket 6 7 Refrigeration Thermostat 2 3 Replacing Lamp Ballast other than RLT 6 8 Defrost Termination Thermostat 2 5 Replacing RLT Lamp Ballast 6 9 Control Settings 00 eee eee 2 6 Servicing Vertical Lighting 6 10 Merchandiser Electrical Data 2 8 Servicing Doors and Frames 6 10 Field WIE 4 0 4 s2050 3465 lt esece0eng ends 2 8 Replacing Door or Door Frame Parts 6 10 Electrical Connections 2 8 Replacing Damaged Drain Fitting 6 11 Identification of Wiring 004 2 8 Repairing Aluminum Coils 6 12 Wiring Color Code 0 00 0 2 8 WARRANTY DRIP PIPING AND SPLASHGUARDS Waste Outlet and Water Seal 3 1 Installing Drip Piping 3 1 Installing Splashguards 3 2 Sealing Splashguard to Floor 3 3 IMPORTANT KEEP IN STORE FOR FUTURE REFERENCE Quality that sets industry standards HUSSMANN 12999 St Charles Rock Road Bridgeton MO 63044 2483 U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 www hussmann com 2007 Hussmann Corporation iv CONTENTS INSTALLATION TOOL LIST Unloading From Trailer Lever Bar also know as a Mule Johnson Bar J bar Lever Dolly and pry lever Moving Dolly Setting Case Line Up Level 4 ft suggested Ratchet
19. ay 7 j U Top Foam Assembly Fan and Heater Wiring Routed Through Top Foam Assembly Door Frame Assembly guit LE WARNING 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 fans heaters thermostats and lights Hussmann recommends against frame heater cycling with Innovator doors to prevent door seals from freezing to the frames and tearing P N 0387183 D WWW HUSSMANN COM P N 0387183_D SERVICING VERTICAL LIGHTING Refer to door manufacturer s manual for servic ing of vertical lamps SERVICING DOORS AND FRAMES See door manufacturer s service manual for servicing information One manual is shipped with each merchandiser REPLACING DOOR OR DOOR FRAME PARTS Parts for Reach in doors and door frame assemblies must be ordered direct from the door manufacturer This includes the glass doors door frame assemblies lamps ballasts door handles hold open slides and power cords Refer to specific warranty supplied with the door The manufacturers have a warranty against moisture penetration a warranty against tempered glass breakage and a warranty on ballasts Lamps are not covered by Hussmann or the door manufacturer HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 6 9 REPLA
20. e cleaning the fan plenum is hinged and also fastened with screws at each end After cleaning be sure the plenum is properly lowered into position and that screws are reinstalled OR PRODUCT LOSS WILL RESULT due to improper refrigeration Exterior Surfaces The exterior surfaces should be cleaned with a mild detergent and warm water to protect and maintain their attractive finish NEVER USE ABRASIVE CLEANSERS OR SCOURING PADS Always Clear Glass Wipe inside of glass with isopropyl alcohol and a soft cloth Allow surface to dry before closing door Use of other cleaners or abrasives may damage the Always Clear surface and or void the warranty Refer to manual that ships with doors Interior Surfaces The interior surfaces may be cleaned with most domestic detergents ammonia based cleaners and sanitizing solutions with no harm to the surface WARNING Do NOT use HOT water on COLD glass surfaces This can cause the glass to shatter and could result in personal injury Allow glass fronts ends and service doors to warm before applying hot water HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A MAINTENANCE WARNING SHUT FANS OFF DURING CLEANING PROCESS Do Nor USE e Abrasive cleansers and scouring pads as these will mar the finish e Solvent oil or acidic based cleaners on any interior surfaces Ammonia based cleaners on acrylic surfaces Do e Remove the product and all loose debris
21. g refrigerant line runs Seasonal changes Merchandiser temperature lower than recommended Stagger defrosts to maintain stable compressor loading and sufficient defrost gas When practi cal defrost when store 1s closed Reach In 2 8 REFRIGERATION ELECTRICAL MERCHANDISER ELECTRICAL DATA Merchandiser data sheets for specific models are shipped with this manual The data sheets provide merchandiser electrical data standard electrical schematics parts lists and performance data Refer to the merchandiser data sheets and case serial plate for electrical information Refer to the separate wiring diagrams shipped with the case for specific information about the case and any optional wiring kits that may have been applied FIELD WIRING Field wiring must be sized for component amperes stamped on the serial plate Actual ampere draw may be less than specified Field wiring from the refrigeration control panel to the merchandisers 1s required for defrost termination thermostats and for optional refrigeration thermostats When multiple merchandisers are on the same defrost circuit the defrost termination thermostats are wired in series ALWAYS CHECK THE SERIAL PLATE FOR COMPONENT AMPERES Electric Defrost is standard for low temperature merchandisers and requires temperature termina tion Gas defrost 1s optional Off Time Defrost is standard for medium temper ature merchandisers and is time terminated When two or
22. gh merchandiser temperature HUSSMANN CORPORATION BRIDGETON MO 63044 2483 U S A START UP OPERATION 4 1 LOAD LIMITS Shelf life of perishables will be short if load limit is violated AT NO TIME SHOULD MERCHANDISERS BE STOCKED BEYOND THE LOAD LIMITS INDICATED DO NOT BLOCK HONEYCOMB LOAD LIMIT PROFILES Reach In 4 2 START UP OPERATION COIL COIL FAN COIL l EAN INSTALLING FDA NSF REQUIRED THERMOMETER The following pages provide the same information that ships with the thermometer This requirement does not apply to display refrigerators intended for bulk produce refer to page 1 1 Please note that the tape cannot be exposed after installation P N 0387183 D WWW HUSSMANN COM P N 0387183_D NER 544 cere rex US FDA Food Code Impact Merchandisers Required Thermometer Acrylic Package Guard Thermometer Hussmann Part TM 4911251 Hussmann Corporation 12999 St Charles Rock Road Bridgeton MO 63044 2483 U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 www hussmann com 2007 Hussmann Corporation Double Stick Tape 1 p End Panel Shelf Price Tag Molding Flexible Plastic Fits in Price Tag Moldings Suggested Mounting Locations in Multi deck Merchandisers Hussmann P N 0429971 C 10 2007 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Reach In 4 4 START UP OPERATION
23. he case at the discharge honeycomb Merchandiser temperature must be controlled by a mechanical or electronic pressure regulator or thermostat that will be mounted on the rack Standard Off Time defrost 1s temperature termi nated The defrost frequency and lengths listed may require adjustment for specific store condi tions Factors include Store temperature and humidity Low head pressure Long refrigerant line runs Seasonal changes Merchandiser temperature lower than recommended Stagger defrosts to maintain stable compressor loading and sufficient defrost gas When practi cal defrost when store 1s closed HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 2 7 CONTROL SETTINGS LOW TEMPERATURE Parallel Compressor Rack Measure Discharge Air Temperature at the center of the case at the discharge honeycomb Merchandiser temperature must be controlled by a mechanical or electronic pressure regulator or thermostat that will be mounted on the rack Standard Electric defrost is temperature terminat ed Failsafe must not control defrost cycle length especially when less than 208V power supply is used for defrost heaters or if frost build up is heavy from shopping demands Optional Gas defrost 1s time terminated and has fan cycling thermostat The defrost frequency and lengths listed may require adjustment for specific store conditions Factors include Store temperature and humidity Low head pressure Lon
24. merchandiser With OTHER Than Gas Defrost The suction and liquid lines should be clamped or taped together and insulated for a minimum of 30 ft 9144 mm from the merchandiser With All Defrost Additional insulation for the balance of the liquid and suction lines is recommended wherever condensation drippage is objectionable or the lines are exposed to ambient conditions Reach In 2 2 REFRIGERATION ELECTRICAL AN CAUTION The following information is applicable only for piping Hussmann merchandisers to Hussmann refrigeration equipment BRANCH LINE PIPING Suction Line All Defrosts Pitch in direction of flow May be reduced by one size at one third of case run load and again after the second third Do NOT reduce below evaporator connection size e Suction returns from evaporators enter at the top of the branch line Suction Line Return 95 1 Loop 76 mm Liquid Line Take Off Liquid Line Off time and Electric Defrost May be reduced by one size after one half the case load run Do not reduce below evaporator connection size Take offs to evaporators exit the bottom of the liquid line Provide an expansion loop for each evaporator take off minimum 3 in 76 mm diameter Liquid Line Koolgas Defrost Maximum of 6 evaporators per Branch System Increase the liquid line size inside the case by two sizes over the branch size Branch Size In Case Size 1 2 7 8 5
25. more merchandisers with full length raceways are installed in line remove the splash guards end caps and raceway covers and install the nipple and nuts supplied providing electrical passage from one merchandiser to the next Following NEC and local codes is the responsibility of the electrical contractor ELECTRICAL CONNECTIONS All wiring must be in compliance with NEC and local codes All electrical connections are to be made to the terminal blocks in the electrical race way behind the lower front panel at the right hand end of the merchandiser facing front WARNING Terminal block NOT for case to case wire connection IDENTIFICATION OF WIRING Leads for all electrical circuits are identified by colored plastic bands These bands correspond to the color code sticker shown below located inside the merchandiser raceway WIRING COLOR CODE Leads for all electrical circuits are identified by a colored plastic band neutral wire for each circuit has either White insulation or a White plastic sleeve in addition to the color band REFRIG THERMOSTAT Low TEMP LIGHT BLUE REFRIG THERMOSTAT NORM TEMP DARK BLUE DEFROST TERM THERMOSTAT ANTI SWEAT HEATERS FAN MOTORS GROUND ORANGE OR LIGHTS MAROON RECEPTACLES YELLOow DEFROST HEATERS 120V DEFROST HEATERS 208V EITHER COLORED SLEEVE OR COLORED INSULATION ELECTRICIAN NOTE Use copper conductor wire only CASE MUST BE GROUNDED P N 0387183_D
26. nn recommends against frame heater cycling with nnovator doors to prevent door seals from freezing to the frames and tearing Reach In 6 2 SERVICE RLT ONLY For access to these fans Motor 1 Turn off power 44 Lock Nut Tool 2 Remove bottom display pans epa Nut 3 Disconnect fan from wiring harness 4 Remove fan blade Fan Blade 5 Lift fan plenum and remove screws holding Gasket 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 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 Bracket C D a Motor tape to the bottom of the fan plenum to reduce improper air movement Use silicone sealant to close other gaps 12 Replace display pans Bring merchandiser to operating temperature before restocking WARNING 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 fans heaters thermostats and lights P N 0387183 D WWW HUSSMANN COM P N 0387183_D REPLACING ELECTRIC DEFROST HEATERS RL RLN RLNI RLNIE Only Electric defrost requires a heater on the fro
27. nstalling on case Splashguard Side Detail Splice Connector P N 0387183 D WWW HUSSMANN COM P N 0387183_D SEALING SPLASHGUARD TO FLOOR IF REQUIRED by local sanitation codes or if desired by the customer plastic splashguards may be sealed to the floor using silicone type sealer The amount needed will depend on how much the floor is out of level e Remove all dirt wax and grease from the area of the splashguard where adhesion will be necessary This 1s to ensure a good and secure installation e Apply a good silicone type sealer along the bottom of the splashguard Sealant must be removed and replaced when servicing Splashguard Silicone type Sealer HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 3 3 OPTIONAL Stainless steel splashguards may be sealed to the floor using a vinyl cove base trim The size of trim needed will depend on how much the floor is out of level To install the trim to the splashguard e Remove all dirt wax and grease from the area of the splashguard where adhesion will be neces sary This is to ensure a good and secure installa tion Apply a good contact cement to the cove trim and allow proper drying time according to the directions supplied with the cement Install the trim to the splashguard so that it 1s lying flush with the floor DO NOT SEAL THE TRIM TO THE FLOOR If required by local health codes Cove Trim may be sealed to the floor using a silicone t
28. nt and rear of the coil as shown The heaters are held in place by tabs in the coil brackets Electric Defrost Bend Tabs on Each Bracket to Release or Secure Heaters p d i gt JLIT Front Defrost Heater 1 Disconnect Power 2 Lift fan plenum up and back to access the heater 3 Bend tabs holding heater to horizontal 4 Remove heater from coil bracket 5 Position new heater in bracket 6 Bend tabs back to vertical to hold heater in bracket 7 Replace the coil cover and lower fan plenum 8 Turn on power HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 6 3 9 Verify that heater is working correctly 10 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 11 Replace display pans Bring merchandiser to operating temperature before restocking Rear Defrost Heater 1 Disconnect Power 2 Remove coil cover 3 Remove clips holding heater to coil tube 4 Remove heater from slots in coil bracket 5 Position new heater in slots 6 Replace clips 7 Replace the coil cover 8 Turn on power 9 Verify that heater is working correctly 10 Replace display pans Bring merchandiser to operating temperature before restocking Reach In
29. on the freight bill or express receipt and signed by the carrier s agent otherwise carrier may refuse claim The carrier will supply neces sary forms Concealed Loss Or Damage When loss or damage is not apparent until after equipment is uncrated a claim for concealed damage is made Upon discovering damage make request in writing to carrier for inspection within 15 days and retain all packing The carrier will supply inspection report and required claim forms AN CAUTION Do not walk or put heavy objects on case Reach In 1 2 INSTALLATION EXTERIOR LOADING Do NOT walk on top of merchandisers or dam age to the merchandisers and serious personal injury could occur THEY ARE NOT STRUCTURALLY DESIGNED TO SUPPORT EXCESSIVE EXTERNAL LOADING such as the weight of a person Do not place heavy objects on the merchandiser MERCHANDISERS SHIPPED WITH END INSTALLED If the case was shipped with the end installed two long bolts were used to hold the shipping brace to the end If the shipping bolts are reinserted after removing the brace they will extend into the product area and may damage the coil THEREFORE BE SURE TO REPLACE THESE BOLTS WITH THE SHORTER BOLTS PROVIDED Be careful not to damage the factory installed end while moving the merchandiser Make sure that tools are positioned past the end and beneath the merchandiser s support bar SHIPPING BRACES Move the merchandiser as close as possible to its perm
30. out of the L bracket to remove it 3 Clean and dry the honeycomb 4 After cleaning reassemble in reverse order of removal ete M E ae WXXxXZXZXxEM Internal siete Honeycomb BENE DE SESE SSIES IE SEE EOE By MMM nyan m n an n a nn n n n a n a n a CETTE n n n a n a na As EEE a a eee ee aa a na n a a ana ma ma a n a n a ma ma na ee PTA Pn n n a n n a n a n n n a n a na n a n a nann onn n a n a n a onn n n f a n a n a n a n a n n n a n a n a n a EE ate ata ap ata a a n a aa m a ma ma n a ma ma n a n a E n a na na n y aa oa n a ma aa na n a atm ota na ota ata oe na om ee A S e et E E ole oe ae E Sun San SR un R n a s R R d m il Adhesiv Interior Top Panel Retainer SIDE VIEW Honeycomb N WARNING Do NOT allow product to sit in a non refrigerated area P N 0387183_D EHHE Matsa WER RHEE Top Panel CLEANING UNDER MERCHANDISERS Remove splashguards not sealed to floor Use a vacuum with a long wand attachment to remove accumulated dust and debris from under the merchandiser 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 or top rail 2 Clean area 3 Apply vinyl or car wax and polish surface for a smooth glossy finish oo0o00000000000 G G GG G GGG G GGG G G a WWW HUSSMANN COM P N 0387183_D SERVICE 6 1 REPLACING FAN MOTORS AND BLADES See cros
31. products in air conditioned stores where tempera ture is maintained at or below the ANSI NSF 7 specified level and relative humidity 1s maintained at or below 55 Placing refrigerated merchandisers in direct sun light near hot tables or near other heat sources could impair their efficiency Like other merchandisers these are sensitive to air disturbances Air currents passing around mer chandisers will seriously impair their operation Do NOT allow air conditioning electric fans open doors or windows etc to create air currents around the merchandisers To prevent sweating on the exterior surfaces of merchandisers there must be A MINIMUM CLEARANCE OF 4 INCHES 102 MM between the merchandisers and other fixtures or walls HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A INSTALLATION 1 1 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 SHIPPING DAMAGE All equipment should be thoroughly examined for shipping damage before and during unload ing 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 Apparent Loss Or Damage If there 1s an obvious loss or damage it must be noted
32. quired To join same temperature fixtures on different defrost cycles a plexiglass partition kit is required ALL JOINTS MUST BE AIR TIGHT TO PREVENT FORMATION OF ICE OR CONDENSATION Refer to separate joining instruction shipped with each case P N 0387183_D INSTALLING SPLASHGUARD BRACKETS 1 Attach splashguard retainer and splashguard retainer support to splashguard support brack et using two screws per bracket Splashguard Retainer Support iN Support Bracket Splashguard Retainer 2 INSTALL SPLASHGUARD SUPPORT BRACKETS BEFORE PIPING CASE The leveling brackets have a maximum extension of one 1 inch 25 mm for uneven floors DO NOT PLACE SHIMS UNDER SPLASHGUARD BRACKETS WWW HUSSMANN COM P N 0387183_D INSTALLING BUMPERS Offsetting the bumpers and top rails helps to disguise the joint locations giving the lineup a smoother look Begin at the left end of the line up A starter bumper is factory installed with end kits Insert the internal joint trim then add the full length bumper Align each bumper section with its retainer and push into place working from the end of the line up Install full length bumpers and internal joint trims offset across joints Make sure that no gaps exist between sections Continue installing bumpers the length of the line up Merchandiser Joint h Merchandiser Joint Internal Joint 1 Trims Full Length Bumpers M Starter Bumper HU
33. s section for location of evaporator fans Should it ever be necessary to service or replace the fan motors or blades be certain that the fan blades are re installed correctly For access to RL RM RLN RMN RLNI RLNIE fans 1 Turn off power 2 Remove bottom display pans 3 Disconnect fan from wiring harness 4 Remove fan blade 5 Remove screws holding fan motor bracket assembly to plenum and remove assembly 6 Replace fan motor bracket assembly and reinstall screws 7 Reinstall fan blade 8 Reconnect fan to wiring harness 9 Turn on power 10 Verify that motor is working and blade is turning in the correct direction 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 Replace display pans Bring merchandiser to operating temperature before restocking HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A N WARNING 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 fans heaters thermostats and lights Fan Assembly U D Kirri E S N Speed Nut M c L Fan Blade r s Airflow Direction Motor Plenum Hussma
34. shims under the rail and make sure that they are positioned at a base component crossbar This transfers the weight directly from the loaded case through to the floor Placing shims at other locations will cause uneven distribution of weight leading to piping leaks as well as sagging or wracked doors 5 Door Island Shown Approximately Centered ER Lo le Sey Rear of Reach in Base Component En ma Shim Here Shim Here Shim NO SHIM Here HERE fy X Electrical Wireway urra pa MRE S N GO T Skid External Ba se Bottom Front Support PT MM T Me Mr hr Mr Mh hr Mh hr ho Mh Mr Mo Mr Mr Mr hh Mh Me Mr Mr MM hr Mr Mo MM Mr Mr ho Mr MM Mo Mh Mr Mr hor ho hhh he heal HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Reach In 1 4 INSTALLATION DOOR ADJUSTMENT After leveling and joining the merchandisers adjust and level doors according to manufacturer s instructions shipped with each product Factory settings are lost due to vibration during shipment JOINING Sectional construction means that two or more merchandisers may be joined in line yielding one long continuous display requiring only one pair of ends Joining kits and instructions are shipped with each merchandiser To join like fixtures a joining kit is required To join unlike fixtures or like fixtures operating at different temperatures a 11 2 inch 38 mm partition kit is re
35. ust be used as part of the drip piping to pre vent air leakage or insect entrance Never use two water seals in series in any one drip pipe DOUBLE WATER SEALS IN SERIES WILL CAUSE B Where drip pipes are located 1n dead air AN AIR LOCK AND PREVENT DRAINING spaces such as between merchandisers or between a merchandiser and a store wall 3 Pitch the drip piping in the direction of flow provide means to prevent freezing There should be a minimum pitch of s inch per foot 1 mm per 100 mm Field Installed Drip Piping Case Bottom Waste Outlet This End MUST Be S meme COL orn Dra Plug Field Installed Field Installed Tee Coupling Water Seal Fitting Adapter HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Reach In 3 2 DRIP PIPING AND SPLASHGUARDS INSTALLING SPLASHGUARDS The splashguard is shipped inside each mer chandiser AFTER merchandisers have been lev eled and joined and all drip piping electrical and refrigeration work has been completed re install the front color panel then install the splashguards First position top of splashguard over the top edge of the bracket second push the lower edge of the splashguard toward the bottom of the bracket until it snaps into place Splashguard Retaining Bracket Splashguard Joint Splashguards are joined with a galvanized metal splice connector that comes with the joint kit Join the splashguards before i
36. ype sealer Sealant must be removed and replaced when servicing Splashguard Cement Cove Trim Reach In 3 4 DRIP PIPING AND SPLASHGUARDS NOTES P N 0387183 D WWW HUSSMANN COM P N 0387183_D STARTUP See the merchandiser s Data Sheet Set for refrigerant settings and defrost requirements Bring merchandisers down to the operating temperatures listed on the data sheet STOCKING Product should NOT be placed in merchandisers until all refrigeration controls have been adjusted and merchandisers are at proper operating temperature All shelves and the lower deck are intended to display product Shelf height is adjustable in one inch increments Spacing of 12 inches is recommended for most applications Maximum load per shelf is 170 pounds Merchandisers may be ordered with optional L shaped wire shelves Proper rotation of product during stocking 1s 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 prop doors open while stocking And keep the doors closed as much as possible to prevent coil frosting and hi
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