ISF and ISM
Contents
1. A 10 ISF and ISM Island Merchandisers vi WARRANTY REVISION HISTORY REVISION C AUGUST 2012 1 Revised Pan and Heater Part numbers Section 5 REVISION B OCTOBER 2010 1 Added self contained location drawings page 1 2 Added Line Sizing page 2 9 Added Koolgas and Remote Refrigeration page 2 9 Added TEV drawing and adjustment page 3 1 Added Cleaning Precautions page 4 4 QN nA BW N Added plan views and cross section pages A 1 A 2 ORIGINAL ISSUE MARCH 2010 ve ve owe de de de owe de ove ve RR OR Oo de vow woo NR ANSI Z535 5 DEFINITIONS DANGER Indicate s a hazardous situation which if not avoided will result in death or serious injury e 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 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515258_C 1 1 INSTALLATION CERTIFICATION These merchandisers are manufactured to meet ANSI National Sanitation Foundation NSF Standard 7 requirements Proper installation is required to maintain certification Near the serial plate each case carries a label identifying the ty2. HUSSMANN W d c YL Jus v LISTED ISF and ISM Low and Medium Temperature Remote and Self Contained Island Merchandisers ewer iil we aut a Installation amp Service Manual vi N ot P N 0515154_C exo August 2012 gee TAA P N 0515154_C 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 12999 St Charles Rock Road Bridgeton MO 63044 2483 HUSSmann U S amp Canada 1 800 922 1919 Mexico 1 800 890 2900 www hussmann com O 2012 Hussmann Corporation TABLE OF CONTENTS ANSI DEFINITIONS INSTALLATION Certification pasa ee Hussmann Product Control Shipping Damage Location MP self Contained Location Model Description Unloading cesses Exterior Loading Shipping Skid zusehen Merchandiser Leveling Serial Plate Location 44 9x Sealing Merchandiser to Floor ELECTRICAL REFRIGERATION Merchandiser Electrical Data Field Wiring isum yes Electrical Connections Electrical Outlet sure Refrigeration Self Contained Refrigeration Remote Line Sizing Remote Koolgas Remote COMIPICSSO siriana Waste Outlet and Water Seal S
3. Motor Plenum Note Plenum length NM and number of fans will vary with model ISF and ISM Island Merchandisers 5 2 SERVICE Replacing ISMGG ISFGG Anti Sweat Heaters val Top Trip Glass Nosing Top Trip Anti Sweat Heaters 123 in Install Heater with 1 in Foil Tape Two 60 in Pieces Install Heater with 1 in Foil Tape P di c Assembly End Glass and Anti Sweat Heater n Barrier Place Barrier on Top Edge of Glass and Secure in Place with Four 11 2 in Long Pieces of 1 in Wide Foil Tape End Glass Anti Sweat Heater E i NOTE When Installing Heater on Glass DaB Leads of Heater Must Exit Glass on Bottom Left Hand End Install Heater with 1 in Foil Tape 88 in ISFGG 5B Four Sided Glass NOTE ISMGG 5B Glass Assembly has no Anti Sweat Heaters on Glass P N 0515154_C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154 C REPLACING NOSING ANTI SWEAT HEATER Not All Models To replace the heater 1 Remove product and place in a refrigerated area Turn off power to the merchandiser 2 Remove the interior panels from under the nosing heater to be replaced by lifting them up and out 3 Remove interior panel support bracket 4 Remove existing screws from sheet metal nosing panel remove panel 5 Remove insulation 6 Unplug and remove existing anti sweat heater taped to sheet metal nosing panel In mos
4. 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 Self contained models have factory installed power cords NEMA 6 20P NEMA 5 20P Receptacle Receptacle attached at the ISF ISM electrical box 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 1s leak tested The unit 1s charged with refrigerant and shipped from the factory with all service valves open N CAUTION Risk of Electric Shock If cord or plug becomes damaged replace only with a cord and plug of the same type WARNING Merchandiser must be grounded Do not remove the power supply cord ground ISF and ISM Island Merchandisers 2 2 ELECTRICAL REFRIGERATION REFRIGERATION Remote Models Refrigeration temperature is controlled by an electronic factory installed thermostat The electronic thermostat controls a liquid line solenoid valve not provided with the merchan diser The thermostat energizes the valve as the temperature rises A pump down system 1s recommended for outdoor condensing u
5. P N 0515154 C DEFROST TERMINATION SWITCH Merchandisers may use a defrost termination switch instead of an evaporator sensor to terminate a defrost cycle The defrost termination switch 1s temperature activated and senses the completion of defrost Compressor Compressor Off Time If On Time If Sensor Failed Sensor Failed On Compressor or Refrigeration Status Off Time MANUAL DEFROST 4 ts r Note N This procedure initiates N Wam Cold a manual or forced 1 Note location of defrost knob setting W arm Cold m Rotate knob fully counterclockwise until it stops full warm OFF position W arm C old 3 After 10 seconds but before 20 seconds rotate knob fully clockwise until it stops full cold position IMPORTANT Return the control knob to its original setting Step 1 once the manual defrost has been initiated U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154 C Safe NET iii Ok 5 Hussmann O dk 9 OFF Position Safe NET III Control Set at Full Cold Position Safo NET Ill n 4 5 Hussmann O 3 Vv o Od O 9 WARM Safe NET IIl Control 1 Position TEMPERATURE ADJUSTMENT 1 Rotate the adjustment knob counter clock wise for a hammer setpoint or clockwise for a colder setpoint 2 While adjusting the temperature the display shows the setpoint cut out value A few seconds after the t
6. MO 63044 2483 U S A GREEN REFRIGERATION YELLOW DEFROST RED ALARM DISPLAY The compressor will start after a delay 30 seconds after the power is applied The compressor will continue to run until it reaches its cut out temperature Pulldown The refrigeration cycle will continue for the next subsequent scheduled 12 hours for ISM and 6 hours for ISF or demand defrost The above process will repeat steps 3 and 4 until the power 1s interrupted 6 If power stops the process will start over at step 1 and the time to subsequent defrost will reset ISF and ISM Island 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 1s 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 1s flashing a temperature sensor has failed The display shows El if the case sensor has failed or E2 if the evaporator sensor has failed HUSSmann 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
7. 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 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 4 3 CLEANING COILS 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 consump tion and reduces the merchandiser s ability to maintain 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 ISF and ISM Island Merchandisers 4 4 MAINTENANCE CLEANING EVAPORATION PAN SELF CONTAINED ONLY The condensate water outlet for self AN CAUTI O N contained models empties into a limited capacity evaporation pan Evaporation Pan is Hot and poses risk of bodily injury Always Wear gloves Debris or dirt accumulation inside the condensate and protective eye wear when servicing Turn off evaporation pan or on the heater coil will evaporation pan heater and allow pan to cool reduce the pan s evaporation capacity and cause premature heat
8. THE MERCHANDISERS SEALING CAUSING LEAKS AND POOR PERFORMANCE Lift hinged fan plenum for cleaning Hook chain in rear panel to secure plenum during cleaning BE SURE TO REPOSITION THE FAN PLENUM AFTER CLEANING MERCHANDISER Take care to minimize direct contact between fan motors and cleaning or rinse water N WARNING Do NOT allow cleaning agent or cloth to contact food product Do NOT flood merchandiser with water NEVER INTRODUCE WATER FASTER THAN THE WASTE OUTLET CAN REMOVE IT SELF CONTAINED MODELS EMPTY INTO AN EVAPORATION PAN THAT WILL OVERFLOW IF TOO MUCH WATER IS INTRODUCED DURING CLEANING e Allow merchandisers to dry before resuming operation After cleaning 1s completed turn on power to the merchandiser ISF and ISM Island Merchandisers 4 2 MAINTENANCE 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 CLEANING UNDER FAN PLENUM To facilitate cleaning the fan plenum is hinged After cleaning be sure the plenum 1s properly lowered into position OR PRODUCT LOSS WILL RESULT due to improper ref
9. large pressure drops Use a minimum number of elbows Where elbows are required USE LONG RADIUS ELBOWS ONLY N CAUTION When brazing pipes be sure to use the insulation blanket shipped with the merchandiser to prevent damage to the metal merchandiser bottom U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154_C COMPRESSOR Self Contained The ISF compressor 1s mounted on vibration springs The compressor s banded down during shipment This band MUST be cut and removed to allow the compressor to float freely once placed into operation Failure to cut compressor shipment band may result in excessive noise or system damage WATER OUTLET AND WATER SEAL The condensate water outlet is located in the center of the merchandiser The outlet has a factory installed external water seal For self contained models this water seal drains into the condensate evaporator pan located beneath the merchandiser For remote models this water seal consists of a moulded trap that requires drip piping to con nect with a floor drain The merchandiser is equipped with a 1 2 in female National Pipe Thread NPT for field installation NOTE All lower base panels must be in place when the refrigerator is operating If not air flow from the condenser will be directed over the evaporator pan and defrost water in the pan may overflow N WARNING Product will be degraded and may spoil if allo
10. 3 U S A ISF and ISM Island Merchandisers A 10 APPENDIX A WIRING DIAGRAMS ISF5GG Remote with Koolgas Electrical Specifications Voltage 115V Frequency 60 HZ WARNING Unplug merchandiser before attempting to make any electrical connections pr 4 9 BK 4 DI Kool Gas Solenoid Valve Field Installed E Discharge Evaporator Fan Motor Anti Sweat Heaters Main Switch H lo crcrru ecieou 9 rcuuIqrTr tuIrirulcileisdi 4 J le W BK WARNING All components must have mechanical ground and the merchandiser must be grounded CIRCLED NUMBERS PARTS List ITEM NUMBERS R Red Y Yellow G 2 Green BL Blue BK Black W White e 120V Power O 120V NEUTRAL FIELD GROUND mm CASE GROUND P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com SSR I Lx WS CI we DI amp ER OR SI SI s EY ae NG l i 1 SA To obtain warranty information Co SG or other support contact your Ko CI Hussmann representative NG dew amp Please include the model and amp SR serial number of the product e 6S U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 amp SI www hussmann com x e amp x ES X FR CI Hussmann Corporation Corporate Headquarters Bridgeton Missouri U S A 63044 2483 01 July 2008 ne ae Hussmann Corporation 12999 St Charles Rock Road Bridgeton MO 63044 www hussmann com
11. 8 1520 S W 4441070 REFRIGERATION CO 4613894 CO 4613893 FI 4612653 VR 4613892 VR 4613895 VR 461220 Description ISF Disconnect Switch 25Amps ISM Disconnect Switch 20 Amps ISF Compressor Defrost Heater Relay ISM Compressor Relay Pressure Control ISF Condensing Unit Assembly ISM Condensing Unit Assembly Drier Crankcase Pressure Regulator ISM Expansion Valve ISF Expansion Valve ISF and ISM Island Merchandisers A 2 APPENDIX A TECHNICAL DATA 132 3353 10 Ft Case 68 3 8 1737 5 Ft Case 9 3 8 9 9 8 i 244 244 71 2 191 Paul Intake i I Condenser 3 p o i S 41 1 2 Evaporation Ir 31 1054 d Pan i Compressor gn y ee A S u Refrigeration Green O om OUR Wade ST 10 3 a 7 1 2 191 Exhaust 264 851 52 FRONT General Case Length Note Includes One Pair Ends Sft 68 5 8 1737 10ft 3353 Optional End Bumpers One Pair 201 2 51 Maximum O S dimension of case back to front 43 1 2 1105 87 2210 Note Includes bumper Width of skid rail 9 5 8 244 19 1 4 488 Waste Outlet LH end of case from outside of End Assembly 33 1 2 851 67 1702 to center of waste outlet P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com APPENDIX A TECHNIC
12. AL DATA A 3 Dimensions shown as inches and mm REFRIGERATION DATA ISF5GG amp ISM5GG ISF ISM Thermostat Setting CI CO F Position 1 11 16 Position 7 34 39 Position 1 38 20 Position 7 ST S ISF Dual Temperature Operation Position 1 38 20 Condenser Position 7 34 39 Unit 72 26 2 71 2 Condensing Unit hp 1 0 5 Ade 673 AE 5 hp 2 2 Condensing Unit UU Capacity 4280 2660 Btu hr at std rating conditions DEFROST DATA ISF ISM Frequency hr 6 12 OFFTIME Failsafe minutes 50 50 Defrost Termination Temperature F 43 48 PHYSICAL DATA Note This data 1s based on store temperature Refrigerant Charge and humidity that does not exceed 80 F and ISF 480z 1 36 kg 55 R H unless otherwise stated Schedule ISM 30oz 85kg defrost at night while lights are off HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A ISF and ISM Island Merchandisers A 4 APPENDIX A WIRING DIAGRAMS Electrical Data Note These are rated values for individual components and should not be added together to determine total merchandiser electrical load ISF 5 ISM 5 Number of Fans 4W 1 1 Amperes Watts ISF 5 ISM 5 ISF 5 ISM 5 Evaporator Fans 230V 60Hz Standard 0 14 16 115V 60Hz Standard 0 14 16 Condensate Pan Heaters 208V 2 40 500 Condensate Pan Heaters 120V 4 75 570 Condensing Unit 208 230V 1Ph 60Hz Standard Minimum Circuit Ampacity ISF 15 7 Minimum Circuit Amp
13. Maintain separate set of stainless steel brushes and USE ONLY ON ALUMINUM 6 Tin surface around area 7 Brush tinned surface UNDER HEAT thoroughly filling the open pores around leak 8 Repair leak Let aluminum melt solder NOT the torch 9 Don t repair for looks Go for thickness 10 Perform a leak check 11 Wash with water 12 Cover with a good flexible sealant DS WIN ma ISF and ISM Island Merchandisers 5 4 P N 0515154_C NOTES P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com APPENDIX A TECHNICAL DATA Item Part Description FAN ASSEMBLIES AND THERMOSTATS 12W Standard Fan Assembly MO 4410557 Fan Assembly 208V 230V FB 4780649 CT 4483048 CT 4483047 CC 4482992 EP 4482541 EP 4482541 EP 4482541 HEATERS ISF HE 4851195 HE 4850151 DP 4916282 HE 4851196 HE 4851193 HE 4851197 ISM HE 4850152 Fan Blade Safe Net III Controller ISF Safe Net III Controller ISM Defrost Sensor Yellow A r Sensor Black SS TIP Safe Net III Display F Safe Net III Harness Defrost Heater 208 230V 800W Condensate Pan Heater 500W 208 230V Condensate Pan with Heater 500W 208 230V Anti sweat heaters 96 in Anti sweat heaters 123 in Anti sweat heaters 140 in Condensate Pan 570W 120V HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Item Part CONTROL PANEL SW 4440546 SW 4440542 RL 4441382 CC 44
14. NING Unplug merchandiser before attempting Use this equipment on a ground system only using copper conductors Use minimum 75 C wire for ampacity determination crankcase heaters must be connected only to its rated voltage to make any electrical connections For 115 volt connect neutral to terminal R Over current protection device rating and type must be in accordance with regulatory agency end product approvals See system serial plate Protector a E gt L3 Se R BK Potential Motor Winding Connections Discharge Capacitor Condenser BK Fan Evaporator Fan Motor BK Main Switch Electrical Specifications Voltage 115 V Frequency 60 HZ lalla paesane sd WARNING All components must have mechanical ground and the merchandiser must be grounded CIRCLED NUMBERS PARTS List ITEM NUMBERS R Red Y Yellow G Green BL Blue BK Black W White e 120V Power O 120V NEUTRAL FiELD GROUND mm CASE GROUND HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A ISF and ISM Island Merchandisers A 8 APPENDIX A WIRING DIAGRAMS ISF5GG Remote Electrical Specifications Voltage 115V Frequency 60 HZ WARNING Unplug merchandiser before attempting to m
15. TART UP OPERATION Safe NET III User Instructions User Instructions Display Start Up 0 0 ce eee Sequence of Operation Diagram Temperature Adjustment Alarms and Codes Defrost Termination Switch Manual Defrost Temperature Adjustment Sensor to Control Adjustment Controls and Adjustments HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A V vicium Do PPS 3 8 TEV Adjustment less 3 8 Load Limits 22e din m e as 3 9 DIOCKIHE 464446546 PaaxeaceR casier as 3 9 MAINTENANCE Care and Cleaning 2 4244 01 244465444525 4 Do NOT US 24424534956 aa dias as 4 1 DO grinta PES 4 1 Removing Scratches from Bumper 4 2 Cleaning Under Fan Plenum 4 2 Cleaning Discharge Air Louvers 4 2 Cleaning Stainless Steel Surfaces 4 3 Cleaning Coils eoa ams qe dct casaca es 4 3 Cleaning Evaporator Pan 4 4 SERVICE Replacing Fan Motors and Blades 5 Replacing Nosing Anti Sweat Heater 5 3 Repairing Aluminum Coil 5 3 APPENDIX Pact NUBIDSIS susanna tara nta A l Plan VIEW fans sued pd eee ti A 2 Cross Section and Refrigeration Data A 3 Electrical Data 04 64644008 stia as A 4 Shipping Weights and Amps A 5 ISF Self Contained Wiring Diagram A 6 ISM Self Contained Wiring Diagram A 7 ISF Remote Wiring Diagram A 8 ISM Remote Wiring Diagram A 9 ISF Remote with Koolgas
16. VERS LOAD LIMIT STOCKING Product should NOT be placed inside the merchandisers until merchandisers are at proper operating temperature Allow merchandiser 24 hours to operate before loading product Proper rotation of product during stocking 1s necessary to prevent product loss Always bring the oldest product to the top and set the newest to the bottom 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 prod uct 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 placed outside of the designated load limits in the illustration HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 3 9 THERMOMETER ISF models have a lin thermometer The thermometer 1s located at the top interior of the merchandiser WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area p ISF and ISM Island Merchandisers 3 10 START UP OPERATION NOTES P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154_C 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 minimu
17. acity ISM 15 9 Compressor LRA 51 0 43 0 Compressor RLA 11 0 9 0 Product Data ISF ISM 5GG AHRI Total Display Area Sq FtlCase 16 92 ft case 1 57 m case Computed using AHRI 1200 standard methodology Total Display Area ft m Unit of Length ft m P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com APPENDIX A TECHNICAL DATA A 5 A HP Type Volts Amps Plugs Amps Hz Ph rasan pom ns tea maior m son roe nano ve coxa mne zona cor All 10 ft models have two separated refrigeration systems and the self contained models have 2 separated power cords Requires field wiring ESTIMATED SHIPPING WEIGHT Case ISF 5 ISM 5 End Self Contained Self Contained 670 Ib 304 kg 725 lb 329 kg Included Remote Remote 610 Ib 277 kg 6211b 282 kg Included ISF 10 ISM 10 End Self Contained Self Contained 1340 Ib 609 kg 1450 Ib 658 kg Included Remote Remote 1220 Ib 553 kg 1242 Ib 563 kg Included 2 Actual weights will vary according to optional kits included HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A ISF and ISM Island Merchandisers A 6 APPENDIX A WIRING DIAGRAMS ISF5GG Self Contained LLN ee 1 I WARNING Unplug merchandiser before attempting Il to make any electrical connections Use this equipment on a ground system only using copper conductors Use minimum 75 C wire
18. ake any electrical connections Dom Cd Defrost Heat Liquid Line Solenoid Valve Field Installed harge ISC D Nm tino D anes BK T ii T lle UJ fi L Evaporator Fan Motor Anti Sweat Heaters W BK S Main Switch EEE E Li NE SED te E PR DS PES RS EDS E E E EB E 4q J le W BK i WARNING All components must have mechanical ground and the merchandiser must be grounded CIRCLED NUMBERS Parts List ITEM NUMBERS R Red Y Yellow G Green BL Blue BK Black W White e 120V Power O 120V NEUTRAL 1 FIELD GROUND mm CASE GROUND P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com APPENDIX A WIRING DIAGRAMS A 9 ISM5GG Remote WARNING Unplug merchandiser before attempting to make any electrical connections Electrical Specifications Voltage 115 V Frequency 60 HZ Liquid Line Solenoid Valve Discharge Evaporator Fan Motor Discharge Nosing Anti Sweat Heater BK BK Si W ______c _ torr1_ _____ o rt_r i life q J el W BK zd WARNING All components must have mechanical ground and the merchandiser must be grounded CIRCLED NUMBERS PARTS List ITEM NUMBERS R Red Y Yellow G Green BL Blue BK Black W W hite e 120V Power O 120V NEUTRAL 1 FiELDGROUND mm CASE GROUND HUSSMANN CORPORATION e BRIDGETON MO 63044 248
19. and shelves Improper handling may cause damage to the merchandiser when 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 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A EXTERIOR LOADING Do NOT walk on top of merchandisers or damage to the merchandisers and serious personal injury could occur MERCHANDISERS ARE NOT STRUCTURALLY DESIGNED TO SUPPORT EXTERNAL LOADING such as the weight of a person Do not place heavy objects on the merchandiser SHIPPING SKID Each merchandiser 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 LAY MERCHANDISER OVER ON THE FLOOR TO REMOVE SKID Once the skid 1s 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 1s a level area Determine the highest part of the floor N WARNING Do NOT remove shipping crate until the merchandiser is positioned ISF and ISM Island Merchan
20. cess to these fans Remove product and place in a refrigerated area Turn off power to the merchandiser bn 2 Remove bottom display pans U2 Disconnect fan from wiring harness 4 Remove fan blade GN Lift fan plenum and remove screws holding bottom of motor to fan basket ON Replace fan motor and blade 7 Lower fan plenum OO 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 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 11 Close air gaps under fan plenum Warmer alr 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 K Screws Se ed Fan Blade Airflow Direction
21. disers 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 SERIAL PLATE LOCATION The serial plate is located on the inside of the merchandiser s display area REFRIGERATION UNIT ACCESS The lower front panel may be removed by lifting the panel straight upward and over the tabs on which it 1s hanging In a self contained merchandiser two screws will have to be removed from either end of the panel The panel is installed by reversing the above procedure Ensure lower front panel is flat against the floor when installed to prevent air circulation problems for self contained merchandisers P N 0515154 C Lower Front Panel Removal Elze Screw E Lower Front Panel e d To Install To d Base SEALING MERCHANDISER TO FLOOR If required by local san tary codes or f the customer desires merchandisers may be sealed to the floor using a vinyl cove base tr m The size needed will depend on how much variation there 1s 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 locat
22. disers 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 alr 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 ISF and ISM Island 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 CONTAINED 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
23. e controller has an adjustment knob and status LEDs The back of the controller has connections for sensors and switched equipment 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 Box and Copy Card TTL Connector Heater E72R only Fan E72R only Compressor Controller LEDs X Compressor Powered On LED green Lights while the compressor 1s running or the refrigeration valve 1s open 44 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 ISF and ISM Island 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 e Switches on the compressor or refrigeration
24. ed in the lower front panel U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154_C 2 1 ELECTRICAL REFRIGERATION WARNING LOCK OUT TAG OUT To avoid serious injury or death from electrical MERCHANDISER ELECTRICAL DATA Refer to the technical data sheets and mer chandiser 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 air louver ELECTRICAL OUTLET Before the merchandiser is connected to any wall circuit use a voltmeter to check that the outlet is at 100 of the rated voltage The wall circuit must be dedicated for the merchandiser Failure to do so voids the warranty Do not use an extension cord Never plug in more than one merchandiser per electrical circuit Always use a dedicated circuit with the amperage stated on the unit Plug into an outlet designed for the plug Do not overload the circuit Do not use long or thin extension cords Never use adapters f in doubt call an electrician
25. emperature is set the controller reverts to the sensed temperature in the merchandiser HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 3 9 Display at Full Cold Model ISM Display at Full Cold Models ISF amp ISF Dual Temp Display at 1 Position Models ISM amp ISF Dual Temp Display at 1 Position Model ISF 3 To verify merchandiser settings perform the operations below Output readings should be within one degree of the temperatures shown above ISF and ISM Island Merchandisers 3 6 START UP OPERATION Typical Sensor to Control Configuration Black Air Yellow Sheath Evaporator Sensor Defrost Termination Black Evap OI Black Sheath AI Air Sensor Display fF LA White AZZ DH ZS Common for e oN oN 2 Both Sensors Y 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 Q 11 Not Used White Common N Both Sensors 10 A Detail A P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154 C 3 7 CONTROLS and ADJUSTMENTS Refrigeration Controls Product Discharge Air Application Temperature ISFGG Low Temp and Frozen Food Dual Temp Remote and Medium Temp
26. er failure The evaporation pan waste water will overflow 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 e Do not use high pressure water hoses Do not introduce water faster than waste outlet can drain e NEVER INTRODUCE WATER ON SELF CONTAINED UNIT WITH AN EVAPORATION PAN e NEVER USE A CLEANING OR SANITIZING SOLUTION THAT HAS OIL BASE these will dissolve the butyl sealants or an AMMONIA BASE this will corrode the copper components of the merchandiser e TO PRESERVE THE ATTRACTIVE FINISH e Use a water and a mild detergent for the exterior only e Do NOT use a chlorinated cleaner on any surface e Do NOT use abrasives or steel wool scouring pads these will mar the finish P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154_C 5 1 SERVICE 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 LIST For ac
27. for ampacity determination crankcase heaters must be connected only to its rated voltage For 115 volt connect neutral to terminal R Over current protection device rating and type must be in accordance with regulatory agency end product approvals See system serial plate Protector C TE BD A cs Defrost Fi Heat rr Potential Motor Winding Connections Run Capacitor AN A i W Stat R Compressor J Capacitor i go BL T Relay a BK Fan L 1 L 4 o el Press Ww CTRL Evaporator BK BK 9 BK Fan Motor Anti Sweat Heater Wu W Cv FG W l BK CN t co co x N N E A 1 2 3 i 5 8 fai 1 l Defrost Discharge L W Main Switch Electrical Specifications Voltage 220 V Frequency 60 HZ ol eec c J q WARNING All components must have mechanical ground and the merchandiser must be grounded CIRCLED NUMBERS Parts List ITEM NUMBERS R Red Y Yellow G Green BL Blue BK Black W White e 120V Power O 120V NEUTRAL 1 FIELD GROUND mm CASE GROUND P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com APPENDIX A WIRING DIAGRAMS A 7 ISM5GG Self Contained WAR
28. frost 4 Ed i Two Hours After Start Up Pull down Compressor On Compressor runs continuously until it reaches its cut out setting Refrigeration Cycle Maximum Defrost Time 50 Minutes Failsafe Defrost cycle is temperature terminated Defrost initiates two hours after start up ISF 6 hours 5 Time to Subsequent Defrost 12 Hour or Demand Defrost ISF 6 hours Pulldown After Defrost Compressor ON Refrigeration Cycle Maximum Defrost Time 50 Minutes Failsafe 1 Defrost Cycle Terminates at 48 F Compressor When powered up there will Starts be a delay of 30 sec at start up before the compressor starts ON JAN OFF OX Compressor _ Start Up Off Cycle Safe NET Ill 4 5 HUssmann GREEN REFRIGERATION YELLOW DEFROST RED ALARM OFF POSITION Safe Net Ill Controller Apply power to the merchandiser Wait for the self check to complete During the self check each LED flashes for one second and then all LEDs turn on for two seconds If the LEDSs do not flash make sure the adjustment knob is not in the OFF position 1A The merchandiser temperature displays at startup The initial defrost starts two hours later The display will show the temperature at the start of defrost This reading will remain displayed during defrost and until it times out even though the refrigeration mode has been initiated The green LED will be lit HUSSMANN CORPORATION e BRIDGETON
29. m maintenance costs these merchandisers should be thoroughly cleaned all debris removed and the interiors washed down weekly Exterior Surfaces The exterior surfaces must be cleaned with a mild detergent and warm water to protect and maintain their attractive finish NEVER USE ABRASIVE CLEANSERS OR SCOURING PADS Interior Surfaces The interior surfaces may be cleaned with most domestic detergents ammonia based cleaners and sanitizing solutions with no harm to the surface Self contained models empty into a limited capacity evaporation pan which will overflow if excess water 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 eStore product in a refrigerated area such as a cooler Remove only as much product as can be taken to the cooler in a timely manner 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
30. mance and may damage the refrigeration system 4 in Clearance I P P P P Lg gg gg ggg ggg gg B Bg gg I Air Air Exhaust Intake Keep discharge and intake areas free from air currents Air Air Exhaust Intake Plan View N Maintain 4 in Clearance Around Merchandiser P N 0515154_C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154_C MODEL DESCRIPTION The ISFGG and ISMGG models are island spot display merchandisers They are available as either remote type which require a separate condensing unit connection or self contained Each self contained model will have its own condensing unit factory installed beneath the display area of the case ready for operation when electrical service is connected ISFGG models are designed for low temperature and dual temperature operation either low temperature frozen food or medium temperature fresh meat dairy and delicatessen models ISMGG model is designed for medium temperature operation ISFGG and ISMGG have upper glass on all four sides of the merchandiser 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
31. nits 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 8 in Refrigerant lines should be sized as shown on the refrigeration legend that is furnished for the store or according to ASHRAE guidelines WARNING Refrigeration lines are under pressure Refrigerant must be recovered before attempting any connection or repair For refrigerators with other than Koolgas defrost the suction and liquid line should be clamped and or taped together and insulated for a minimum of 30 feet from the refrigerator P N 0515154_C KOOLGAS Remote Models If Koolgas 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 Refrigerators with Koolgas defrost SHOULD NOT have their liquid lines and suction lines in contact with each other but are to be separately insulated for a minimum of 30 ft from the refrigerator Additional information for the balance of the refrigerant lines 1s recommended and required wherever condensation and dripping would be objectionable Oil Traps P traps oil traps must be installed at the base of all suction line vertical risers Pressure Drop Keep refrigerant line runs as short as possible to avoid
32. pe 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 Hussmanns 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 1s to ensure the customer 1s 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 car rier 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 1s an obvious loss or damage it must be noted on the freight bill or express receipt and signed by the carrier s agent otherwise carrier may refuse claim Concealed Loss or Damage When loss or damage is not apparent until after equipment is uncrated retain all packing materials and submit a written response to the carrier for inspection within 15 days LOCATION These merchan
33. rator 1s 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 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 difference 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 P N 0515154 C TE ATTENTION INSTALLER COMPRESSOR ISF self contained merchandiser has a compressor that is banded down for shipment This band MUST be cut and removed to allow the compressor to float freely once placed into operation NOTE Failure to cut compressor shipment band may result in excessive noise or system damage which is not covered by warranty Probe Locations U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154 C LOAD LIMITS Each merchandiser has a load limit decal 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 AIR LOU
34. rigeration 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 P N 0515154_C WARNING SHUT FANS OFF DURING CLEANING PROCESS CLEANING DISCHARGE AIR LOUVERS Discharge air louvers should be cleaned every six months Dirty louvers will cause merchandisers to perform poorly The louvers may be cleaned with a vacuum cleaner Soap and water may be used if all water 1s removed from the louvers cells before replacing Be careful not to damage the louvers 1 Using a flat object such as a screw driver compress the honeycomb and remove it from its retainer 2 Clean and dry the air louvers 3 After cleaning replace in reverse order Damaged louvers must be replaced U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154_C 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 CLEANING STAINLESS STEEL SURFACES Use non abrasive cleaning materials and always polish with grain of the steel Use warm water or add a mild detergent to the water and apply with a cloth Always wipe rails dry after
35. self Contained Dairy Deli ISMGG Medium Temp Remote and Dairy Deli oelf Contained 1 The Safe NET III Controller controls refrig eration temperature This is factory installed in the control panel Adjust this control knob to maintain the discharge air temperature shown Measure discharge air temperatures at the center of the discharge louver HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Defrost Controls Defrost Type of Temp Failsafe Frequency Defrost Termination Time per day Minutes Electric Electric Off Time 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 ISF and ISM Island Merchandisers 3 8 START UP OPERATION START UP Follow the Safe NET III start up procedures as detailed in Section 3 of this manual Fach 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 The crankcase pressure regulating CPR refrigeration valve 1s factory set and requires no adjustment TEV Adjustment Expansion valves may be adjusted to fully feed the evaporator Before attempting to adjust valves make sure the evapo
36. t applications anti sweat heater plug is routed on left hand side from front of merchandiser 7 Tape anti sweat heater as shown in the illustrations Route plug to jumper harness If price tag molding 1s installed allow clearance between screws and wiring Make sure that the edge of foil tape 1s seated properly Failure to do so will cause damage to the wiring and heater 8 Reinstall insulation sheet metal nosing panel screws interior panel support bracket and interior panels 9 Turn on power to merchandiser and check for proper operation 10 Bring merchandiser to operating temperature before restocking Refer to illustrations on the previous page HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 5 3 REPAIRING ALUMINUM COIL The aluminum coils used in Hussmann mer chandisers 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 Aladdin 3 in 1 rod at X Ergon Acid core at 1125 F 607 C 732 F 389 C 455 F 235 C Technique Locate Leak REMOVE ALL PRESSURE Brush area UNDER HEAT Use PRESTOLITE TORCH ONLY Number 6 tip S
37. valve for cooling N 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 i Sensor Alarm P N 0515154 C START UP 1 Plug in the merchandiser WARNING The OFF Position does not disconnect line voltage to the case 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 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 1 800 890 2900 e www hussmann com P N 0515154 C 3 3 SEQUENCE OF OPERATION Compressor ISF AN D ISM Starts Initial De
38. wed to sit in a non refrigerated area HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 2 3 ISF and ISM Island Merchandisers 2 4 ELECTRICAL REFRIGERATION NOTES P N 0515154 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515154 C 3 1 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 NET III TEMPERATURE AND DEFROST CONTROLLER SAFE NET HIM 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 1s on when the case 1s 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 Adjustment Knob Compressor Powered On sy green i a i ee HUSEMA pe p Defrost Cycle yellow Temperature or Sensor Alarm a red am Warm off irak Cold Position Position Position HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A The front of th
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