HGL- 1, 2 & 3 BS, TS
Contents
1. Door and Frame Heaters Switch LED Light System BL Light Kk 0 Ballast SER 0 Ballast 8 p 0 BK 10 6r BL p 0 8K 410 6 BL AA Door 0 11 7 BL Dip 7 BL Heaters 0 0 BL 0 BL GR Frame Heaters I KK B Alarm Stat Cy R 5 Anthony Doors amp Frame H NOTE Evaporator Fans Wires noted with are in wire harness going up back of case 2 ED only for the BS models AWM o 1 Door 2 LED Bars HTR DRAIN ust for IS p i 2 BK HGL3BS TS 2 Door 3 LED Bars l2. 1 6 Sealing Merchandiser to Floor 1 6 Air Distribution amp Rear Flue Spacer 1 6 DEE des Se 1 6 ELECTRICAL REFRIGERATION Merchandiser Electrical Data 2 1 Field Wiring 2 1 Electrical Connections 2 1 Electrical Enclosure 2 1 Power Switches 2 1 Electrical Outlet 2 1 Refrigeration Self Contained 2 2 Refrigeration Remote 2 2 Line Sizing Remote 2 2 Koolgas Remote 2 2 CompresSOF RARE 2 3 Condensate Pan 2 3 SHENES oa eI wee 2 3 Air Distribution and Rear Flue Spacer 2 3 NOLES ti coetus eth e et 2 4 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A TABLE OF CONTENTS V START UP OPERATION Safe NET III User Instructions 3 1 User 151110108 nuana 3 1 Display rw i so zat eR T DEA 3 2 eos inn e 3 2 Sequence of Operation Diagram 3 4 Alarms and Codes 3 5 Defrost Termination Switch 3 5 Manual Defrost 3 5 Temperature Adjustment 3 6 Sensor to Control Adjustment 3 7 Controls and Adjustments 3 8 Start DD rots ae EE 3 9 Crankcase Pressure Regulator 3 9 Receiver cuts Zi etr tarda m tede diete 3 9
3. Hussmnnn Ou v LISTED HGL 1 2 amp BS TS Bottom Top Mount Low Temperature Remote and Self Contained Glass Door Merchandisers HGL 2BS HGL 3TS Installation amp Service Manual P N 0515296 e January 2011 P N 0515296 A iii ATTENTION Merchandiser must operate for 24 hours before loading product Regularly check merchandiser temperatures Do not break the cold chain Keep products in cooler before loading into merchandiser These merchandisers are designed for pre frozen products only IMPORTANT KEEP IN STORE FOR FUTURE REFERENCE Quality that sets industry standards 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 2011 Hussmann Corporation P N 0515296 A ANSI DEFINITIONS vi INSTALLATION ou ue dA PUR n Cra 1 1 Hussmann Product Control 1 1 Shipping Damage 1 1 Location PES ERES TS 1 1 Self Contained Location 1 2 Model Description 1 4 Bee ics cu an ped 1 4 Exterior Loading 1 4 Shipping Skid 1 4 Merchandiser Leveling 1 5 Leg Installation Top Mounts 1 5 Serial Plate Location 1 5 Refrigeration Unit Access
4. wni ET A n for ffe m eos PL Common fo Both Sensors Yellow Sensor Defrost Termination Evaporator Black Sensor Control Air Tu 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 EN Common e Both Sensors 10 ut Detail A HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers 3 8 START UP OPERATION CONTROLS and ADJUSTMENTS Refrigeration Defrost Controls Controls Model Product Discharge Air Defrost Typeof Temp Failsafe Application Temperature Frequency Defrost Termination Time per day Minutes HGL Remote and Low Temp Self Contained Frozen Food 5 to 15 3 Electric 48 50 1 The Safe NET Controller controls refrig Defrosts are time initiated and temperature eration temperature This is factory installed in terminated for self contained and remote the control panel Adjust this control knob to including Koolgas models The defrost setting maintain the discharge air temperature shown is factory set as shown above Measure discharge air temperatures at the center of the discharge louver P N 0515296 A To ensure a thorough defrost defrost must be terminated by the temperature termination setting n
5. VASE y Warm Cold 3 After 10 seconds but before 20 seconds rotate knob fully clockwise until it stops full cold position IMPORTANT Return the control knob to its original setting Step 1 once the manual defrost has been initiated HGL Merchandisers 3 6 START UP OPERATION 4 OFF Position Safe NET III Control Set at Full Cold Position Sato NET Il 4 5 HUSSMmaAnT O ty o 0 OM s WARM COLD Safe NET 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 temperature is set the controller reverts to the sensed temperature in the merchandiser Display at Full Cold Model HGL 7 LHUSSIIHHIT Display at 1 Position Model HGL 3 To verify merchandiser settings perform the operations below Output readings should be within one degree of the temperatures shown above P N 0515296 A U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A 3 7 Typical Sensor to Control Configuration Black Air Yellow Sheath Evaporator Sensor Defrost Termination Black Evap 2222221 Black Sheath 272209 Air Sensor Display 2 222200
6. Field hard wired HGL Electrical Data Refrigeration Load A C Load Cu BTU h BTU h E KWh day HGL 1BS HGL 1B HGL 2BS Refrigeration load calculated at 30 F evaporation temperature and 105 F condensing temperature E Refrigeration Load Gon SOR on BTU h BTU h kWh day HGL 1TS HGL2TS HGL 2T HGL 3TS 9500 52 49 4 HGL 3T e Refrigeration load calculated at 30 F evaporation temperature and 105 F condensing temperature HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers A 8 APPENDIX TECHNICAL DATA Dimensions shown as inches and mm 34 3 4 883 13 5 s m 34 3 8 873 349 A CONDENSING A UNIT EVAP 84 3 s 62 3 8 2143 1584 r 27 3 4 705 gt C 22 3 4 gt Models HGL1TS HGL2TS Y D T HGL3TS A 0 6 1 4 159 1 2 699 gt DRAIN P N 0515296 A EVAPORATOR REFRIGERATION DATA HGL Thermostat Setting F Position 1 5 18 Position 7 5 28 Compressor hp HGL 1 3 4 HGL 2 1 HGL 3 11 2 Condensing Unit Capacity Btu hr at std rating conditions HGL 1 1870 HGL 2 2300 HGL 3 4270 at 10 F evaporation and 110 F condensing temperature DEFROST DATA HGL Frequency hr 8 DEFROST TERMINATION TEMPERATURE Failsafe 50 minutes
7. 18 7 8 479 CONDENSING UNIT Ioue DRAIN PAN LOCATED ON THE BASE ELECTRICAL BOX 645 18 1 2 470 I 4 1 8 105 7 5 8 194 z 14 3 8 365 REFRIGERATION OUTLET 28 7 3 733 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers A 6 APPENDIX TECHNICAL DATA HGM 2TS Plan View Dimensions shown as inches and mm 15 1 2 394 ER 28 1 2 724 209 Geet 34 1 4 349 3 4 13 ELECTRICAL BOX REFRIGERATION OUTLET CONDENSING UNIT DRAIN PAN LOCATED ON THE BASE HGM 3TS Plan View Dimensions shown as inches and mm 75 3 8 1915 15 5 s 397 CONDENSING UNIT 3 3 8 86 16 406 8 1 4 34 1 4 n 1 4 718 gt REFRIGERATION DRAIN PAN OUTLET LOCATED ON THE BASE 9 3 4 248 ELECTRICAL BOX P N 0515296 A U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com APPENDIX TECHNICAL DATA A 7 HGL Dimensions Exterior du s F TNR mme liters cubic feet Tvpe 65 Run Amps HGL IBS 2878 345 3 208 230 685 24 19 4048 208 230 79 HGL28 se 9456 16276880 Raosa 59 meet 28 102 Field hard wired SE S Interior Volume Refrigerant liters cubic feet T 5 D ye Volts Run Amps 36 4 9 5 merae mao 20820 1999 70 60 1999 70 60 RA zoemo 102
8. N 0515296 A 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 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 3 3 HGL Merchandisers 3 4 START UP OPERATION SEQUENCE OF OPERATION HGL BS TS Compressor Starts V Time to Subsequent Defrost Initial Defrost 12 Hour or Demand Defrost 5 Time to Subsequent Defrost Two Hours After Start Up 12 Hour or Demand Defrost Pull down Compressor On Compressor runs continuously until it reaches its cut out setting _ Refrigeration Cycle Pulldown After Defrost Refrigeration Compressor ON one Maximum Defrost Time 50 Minutes F
9. of 120 Ibs DO NOT OVERLOAD THE SHELVES U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A 2 1 ELECTRICAL REFRIGERATION MERCHANDISER ELECTRICAL DATA Refer to Appendix A of this manual or the merchandiser s serial plate for electrical information FIELD WIRING Field wiring must be sized for component amperes stamped on the serial plate Actual ampere draw may be less than specified ALWAYS CHECK THE SERIAL PLATE FOR COMPONENT AMPERES ELECTRICAL CONNECTIONS 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 ENCLOSURE Remove the access panel and electrical box cover to access the electrical enclosure The cabinet supply breakers should be disconnected before removing the enclosure cover POWER SWITCHES The power switch is located at the electrical box which is behind the top decorative panel TS models or bottom louvered panel BS models The switch will shut off all power to the merchandiser HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Before any service is performed on this piece of equipment make sure the power supply to the merchandiser is disconnected ELECTRICAL OUTLET Before the merchandiser 15 connected to any wal
10. serial number of the product Hussmann Corporation Corporate Headquarters Bridgeton Missouri U S A 63044 2483 01 July 2005 Hussmann Corporation 12999 St Charles Rock Road Bridgeton MO 63044 2483 www hussmann com dm Ingersoll Rand
11. the LED fixtures are mounted see the supplemental document shipped with the merchandiser DOOR SWITCHES The switches at the top of the doorways operate the evaporator fan motors These switches stop the fan motors when the doors are open DOOR DEFROST HEATER THERMOSTAT This cabinet is equipped with both frame and door heaters These are thermostatically con trolled and will not come on until the cabinet 1s at operating temperature ALARM THERMOSTAT heater display The alarm heater display thermostat 1s located on the top of the inner liner in the upper right hand corner behind the evaporator The thermostat will not turn the heaters on until it senses 0 F and in turn will turn the heaters off when it senses 18 This is because the unwanted heat will not be added to the mer chandiser during defrost or if the case refrigera tion system fails U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A 4 1 MAINTENANCE CARE AND CLEANING Long life and satisfactory performance of any equipment is dependent upon the care it receives To ensure long life proper sanitation and minimum maintenance costs these merchandisers should be thoroughly cleaned all debris removed and the interiors washed down weekly Exterior Surfaces The exterior surfaces must be cleaned with a mild detergent and warm water to protect and maintain their attractive finish NEVER USE ABRASIVE CLEANS
12. when cleaning condensate pan HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 4 3 A CAUTION Condensate Pan is Hot and poses risk of bodily injury Always Wear gloves and protective eye wear when servicing Turn off condensate pan heater and allow pan to cool N 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 PRECAUTION CLEANING PRECAUTIONS When Cleaning Do not use high pressure water hoses Do not introduce water faster than waste outlet can drain NEVER INTRODUCE WATER ON SELF CONTAINED UNIT WITH AN EVAPORATION PAN NEVER USE A CLEANING OR SANITIZING SOLUTION THAT HAS OIL BASE these will dissolve the butyl sealants or an AMMONIA BASE this will corrode the copper components of the merchandiser TO PRESERVE THE ATTRACTIVE FINISH Use a water and a mild detergent for the exterior only Do NOT use a chlorinated cleaner on any surface Do NOT use abrasives or steel wool scouring pads these will mar the finish HGL Merchandisers 4 4 MAINTENANCE NOTES P N 0515296 A U S A Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A 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 BLADE
13. AINED 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 Air Air Intake Exhaust Condensing Unit Side View ww Zero Clearance at Sides 12 in Clearance at Rear and on Top P N 0515296_A HGL TS Location The condensing unit is located at the top of the HGL TS At least 12 inches of clearance should be allowed at the rear of the cabinet and at the top of the merchandiser This clearance is necessary to provide free air movement to and from the condenser for maximum operating efficiency Top View Air Exhaust ww Zero Clearance at Sides 12 in Clearance at Rear and on Top U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A 1 3 HGL BS Location At least 24 inches of clearance should be maintained in front of HGL BS merchandisers and 6 inches of clearance at the rear to provide the necessary free air movement to and from the condenser The condensing unit is located at the bottom of these merchandisers Air Exhaust Rear Side View Top View Air Intake Air Air Intake Exhaust ww Zero Clearance bud Zero Clearance at Sides at Sides 24 in Clearance 24 in Clearance at Front at Fron
14. ATER FASTER THAN THE WASTE OUTLET CAN REMOVE IT SELF CONTAINED MODELS EMPTY INTO AN CONDENSATE PAN THAT WILL OVERFLOW IF TOO MUCH WATER IS INTRODUCED DURING CLEANING Allow merchandisers to dry before resuming operation After cleaning is completed turn on power to the merchandiser HGL Merchandisers 4 2 MAINTENANCE CLEANING STAINLESS STEEL SURFACES Use non abrasive cleaning materials and always polish with grain of the steel Use warm water or add a mild detergent to the water and apply with a cloth Always wipe rails dry after wetting Use alkaline chlorinated or non chlorine containing cleaners such as window cleaners and mild detergents Do not use cleaners containing salts as this may cause pitting and rusting of the stainless steel finish Do not use bleach 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 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 P N 0515296 A CLEANING COILS Condenser coils should be cleaned at least once per month Additional cleaning may be needed depending on the operati
15. Defective relay Restriction or moisture Inadequate air over condenser Defective condenser fan motor CRO not set properly HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A evacuate and recharge Replace fuse or reset breaker Repair or replace Replace Replace Check service cords or wiring connections Contact electrician Replace Replace Leak check replace drier evacuate and recharge Clean condenser Replace Reset to 10 psi HGL Merchandisers 5 4 SERVICE PROBLEM Icing condition in drain pan PROBABLE CAUSE SOLUTION Low voltage Cabinet not level Check voltage at compressor Check front to rear leveling adjust legs accordingly Defective drain tube heater Replace Defective drain pan heater Replace LIGHTING PROBLEM SOLUTION PROBLEM Lights won t start Lights flicker Ballast hums P N 0515296 A SOLUTION Check light switch Check continuity to ballast Check to see if bulbs are inserted properly in sockets Check voltage Allow lamps to warm up Check sleeve for cracks Check sockets for moisture and proper contact Bulb replacement may be necessary Check voltage New bulbs tend to flicker until used Check voltage Replace ballast U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com APPENDIX TECHNICAL DATA A 1 HUSSMANN CORP
16. ERS 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 condensate pan which will overflow if excess water is used in cleaning Do NOT Use Abrasive cleansers and scouring pads as these will mar the finish Coarse paper towels on coated glass Ammonia based cleaners on acrylic parts Solvent oil or acidic based cleaners on any interior surfaces Do not use high pressure water hoses N WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Do Remove the product and all loose debris to avoid clogging the waste outlet Store product in a refrigerated area such as a cooler Remove only as much product as can be taken to the cooler in a timely manner Disconnect electrical power before cleaning Thoroughly clean all surfaces with soap and hot water DO NOT USE STEAM OR HIGH WATER PRESSURE HOSES TO WASH THE INTERIOR THESE WILL DESTROY THE MERCHANDISERS SEALING CAUSING LEAKS AND POOR PERFORMANCE Take care to minimize direct contact between fan motors and cleaning or rinse water WARNING allow cleaning agent cloth contact food product Do NOT flood merchandiser with water NEVER INTRODUCE W
17. K Ze NOTE HGL3BS TS Evaporator Fans Wires noted with are in wire O 2 harness going up back of case mees SE EM only for the BS models e LS 1 Door 2 LED Bars A i 2 B 2 Door 3 LED Bars BK See 3 Door 4 LED Bars I zd p al le 8 qc gt 5 Evaporator Fans Q 71 17 T Condensate ila uh Pan Heater sls 3 8 5 we xl fo BK 25 26 m Thermo Disc H O E Yellow Sheath 8 ike 8 2 Motor for HGL 1B T HGL 2B T 2 lagu 5 x FM 5 Black Sheath Display 3 Motors for HGL 3B T ile SE Thermostat Thermostat ale Sensor Sensor AirTemp Temp Defrost 2 di 4 18 Power Supply n t BK BL w Bk SafeNET II CONTROL HE Switch 5 s7 5 208 230 Relay E 5 Heaters O 20 AMP 230 V Compressor Relay BK WARNING Unplug merchandiser before attempting to make any electrical connections 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 B Brown O Orange Grey 120V Power 120V NEUTRAL 4 FIELD GROUND mm CASE GROUND HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers A 10 APPENDIX WiRING DIAGRAM HGL Self Contained Anthony T8 Electronic Lighting
18. ORATION e BRIDGETON MO 63044 2483 U S A Item Part Description Item Part Description HGL 1 HGL 2 HGL 3 REFRIGERATION PARTS ALL MODELS HGL 1 5W Standard Fan Assembly CU 4200232 Compressor MO 4410291 Fan Motor 5 Watt 208V 230V CO 258040 Condenser FB 4780606 Fan Blade MO 4410827 Condenser Fan Motor CT 4483088 Safe Net III Controller FB 4780794 Condenser Fan Blade CC 4482991 Defrost Sensor Yellow EV 4671169 Evaporator CC 4482992 Air Sensor Black VR 175444 TXV CC 4482540 Safe Net III Display F FI 4612642 Filter Drier EP4483064 Safe Net III Harness HGL 2 EP4441283 HGL 1 HGM 2 Power Cord 15 Amp 208 230V CU 8420119 Compressor EP 4441278 HGL 3 Power Cord CO 258040 Condenser 20 Amp 208 230V MO 4410827 Condenser Fan Motor SW 4440542 Power Switch all models FB 4780794 Condenser Fan Blade CT 4481967 Alarm Tstat EV 4671160 Evaporator RL 4441382 Compressor Relay VR 17S444 TXV RL 4441382 Defrost Rel 1 4612642 Filter Drier VR 4613171 CPR Valve DO 2987931 Door Assembly Silver HGL Merchandisers A 2 Item Part HGL 3 CU 8420123 CO 4670393 MO 4410827 FB 4780788 EV 4671074 VR 17S115 1 4612642 HEATERS HGL 1 HE 4850905 HE 4851200 HE 4850896 DP 4996638 DP 4916279 P N 0515296 A APPENDIX TECHNICAL DATA Description REFRIGERATION CONTINUED Compressor Condenser Condenser Fan Motor Condenser Fan Blade Evaporator TXV Filter Drier Defrost Heater Drain Heater Dr
19. PHYSICAL DATA Refrigerant Charge HGL 1 HGL 2 35 3oz l kg 37 9 oz 1 074 kg Note This data is based on store temperature and humidity that does not exceed 75 F and 55 unless otherwise stated Schedule defrost at night while lights are off U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com APPENDIX WiRING DIAGRAM A 9 HGL Remote Door and Frame Heaters FAN SWITCHES z T iaht Anthony T8 Electronic Lighting or deel LED Light System Switch BL Light ri 0 4 Ballast ER 9 0 Ballast 3 Door Fo d Y D 0 Heaters 0 0 8L 0 B es GR Frame Heaters G B Alarm Stat A R Anthony Doors amp Frame H Just for De B
20. S MUST BE INSTALLED WITH RAISED EMBOSSING PART NUMBER ON PLASTIC BLADES POSITIONED AS INDICATED ON THE PARTS LIST For access to these fans 1 Remove product and place in a refrigerated area Turn off power to the merchandiser 2 Remove two thumb screws that secure the return air grille coil cover Remove return air grille Remove fan assembly Replace fan motor and blade Reconnect fan to wiring harness NHN Nn WW Replace return air grille and fasten air grille to coil cover oo Turn on power 9 Verify that motor is working and blade is turning in the correct direction WARNING Product will be degraded and may spoil if allowed to sit non refrigerated area 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 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A REPLACING THERMOMETER The thermometer may be replaced by removing the two screws holding it to the evaporator fan grille Lower the evaporator coil cover by removing the brass screws located at the two front corners of the cover Remove the screws along the front edge of the cover holding it to the grille Follow the sensing lead to the center rear of the e
21. TEV Adjustment 3 0 Load Dite sus sedo 3 11 STOGKINE sare Aena 3 11 Thermometer 3 12 3 12 Door EEN 3 12 Door Defrost Heater Thermostat 3 12 Alarm Thermostat 3 12 MAINTENANCE Care and Cleaning 4 1 Do NOT Use 235 siesta TQUE EE A 4 4 Cleaning Stainless Steel Surfaces 4 2 Cleaning Coils 4 2 Cleaning Evaporation Pan 4 3 NOTES etre 4 4 SERVICE Replacing Fan Motors and Blades 5 Replacing Thermometer 5 Defrost Heater Replacement 5 1 Troubleshooting Guide 5 2 Lighting Problem Solution 5 4 HGL Merchandisers vi APPENDIX Part Numbers HGL 1BS Plan View HGL 2BS amp HGL 3BS Plan View HGL ITS Plan View HGL 2TS amp HGL 3TS Plan View HGL Dimensions amp Electrical Data Cross Sections and Refrigeration Data HGL Remote Wiring Diagram HGL Self Contained Wiring Diagram REVISION HISTORY ORIGINAL ISSUE JANUARY 2011 RRR KC ANSI Z535 5 DEFINITIONS situation which if not avoided will DANGER Indicate s a hazardous result in death or serious injury WARNING Indicate s a hazardous situation which if not avoided could r
22. ailsafe Maximum Defrost Time 50 Minutes Failsafe Defrost Cycle Terminates at 48 Defrost cycle is temperature terminated Defrost initiates two hours after start up Compressor When powered up there will Starts be a delay of 30 sec at start up before the compressor starts ON o Start Up Compressor e Off Cycle 1 5 HUSSmanm GREEN REFRIGERATION GREEN REFRIGERATION YELLOW DEFROST YELLOW DEFROST RED ALARM RED ALARM OFF POSITION DISPLAY Safe Net IIl Controller 1 Apply power to the merchandiser Wait for 2 The compressor will start after a delay 30 the self check to complete During the self seconds after the power 1 applied check each LED flashes for one second and then all LEDs turn on for two seconds If the 3 The compressor will continue to run until it LEDs do not flash make sure the adjustment reaches its cut out temperature Pulldown knob is not in the OFF position 4 The refrigeration cycle will continue for the next 1A The merchandiser temperature displays at subsequent scheduled 12 hours or demand startup The initial defrost starts two hours defrost later The display will show the temperature at the start of defrost This reading will remain 5 The above process will repeat steps 3 and 4 displayed during defrost and until it times out until the power is inte
23. ain Pan Heater Condensate Pan Heater Condensate Pan Item Part HGL 2 HE 4850852 HE 4851201 HE 4850861 HE 4850846 DP 4916279 HGL 3 HE 4850744 HE 4850744 HE 4850324 HE 4850846 DP 4916279 Description Defrost Heater Drain Heater Drain Pan Heater Condensate Pan Heater Condensate Pan Defrost Heater Drain Heater Drain Pan Heater Condensate Pan Heater Condensate Pan U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com APPENDIX TECHNICAL DATA A 3 HGL 1BS Plan View Dimensions shown as inches and mm 12 1 308 REFRIGERATION OUTLET 3 3 3 8 86 WATER DISSIPATION TRAY 19 483 2 22 3 4 746 SS ELECTRICAL WIREWAY 2 305 4 3 4 121 ELECTRICAL FIELD CONNECTION POINT 28 7 3 733 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers 4 APPENDIX TECHNICAL DATA HGL 2BS amp HGL 3BS Plan View Dimensions shown as inches and mm REFRIGERATION OUTLET WATER DISSIPATION TRAY ELECTRICAL CONDENSING WIREWAY UNIT ELECTRICAL FIELD CONNECTION POINT L Dimensions shown as inches and mm B 292 749 27 686 D E E 20 1 8 511 P N 0515296 A U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com APPENDIX TECHNICAL DATA A 5 HGL 1TS Plan View Dimensions shown as inches and mm COILS
24. air flow Defective condenser fan motor Air or non condensable gases in system Temperature control not set properly Short of refrigerant Cabinet location too warm Too much refrigerant Low voltage compressor cycling on overload Condenser dirty Defective control Control feeler not in tube properly Short on refrigerant SOLUTION Leak check change drier evacuate and recharge Replace Clean Relocate cabinet Clean condenser to remove air flow restriction Replace Leak check change drier evacuate and recharge Reset control Leak check replace drier evacuate and recharge Relocate Change drier evacuate and recharge Check power Clean Replace Assure proper length in tube Leak check change drier evacuate and recharge U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A 5 3 PROBLEM PROBABLE CAUSE SOLUTION 1 Defective control Replace Compressor runs continuously product too cold 2 Control feeler not in tube Assure proper length in properly tube 3 Short on refrigerant Leak check change drier Compressor will not start no noise Compressor will not start cuts out on overload Blown fuse or breaker Defective or broken wiring Defective overload Defective temperature control Power disconnected Low voltage Defective compressor
25. ce 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 1 removed the merchandiser must be lifted NOT to reposition To remove the skid remove screws attaching skid to the merchandiser Check floor where cases are to be set to see if it is a level area Determine the highest part of the floor WARNING Do NOT remove shipping crate until the merchandiser is positioned for installation U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A MERCHANDISER LEVELING BE SURE TO POSITION MERCHANDISERS PROPERLY Level the merchandiser at corners Merchandiser s must be installed level to ensure proper operation of the refrigeration system and to ensure proper drainage of defrost water The merchandiser can be leveled by shimming under the cabinet base frame or by installing optional leg levelers The self closing doors require the cabinet to be properly leveled End to end leveling will allow the doo
26. 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 is recommended and required wherever condensation and dripping would be objectionable U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A 2 3 CONDENSATE PAN Oil Traps An electrically heated 300W 208 230V P traps oil traps must be installed at the base condensate pan evaporates defrost water The of all suction line vertical risers heated condensate pan slides onto the slide plate on the cabinet bottom on both the TS Pressure Drop and BS merchandisers Keep refrigerant line runs as short as possible to avoid large pressure drops Use a minimum The pan is removable for cleaning A vinyl number of elbows Where elbows are required drain tube is provided for connection to the USE LONG RADIUS ELBOWS ONLY heated condensate pan The drain must be trapped to guard against drain line freezing and as a good sanitation practice COMPRESSOR Self Contained The HGL compressor is mounted on vibration A WAR N G springs The compressor is banded down during gees shipment This band MUST be cut and removed Product will be degraded and may spoil if to allow the compressor to float freely once allowed to sit in a non refrigerated area
27. e front of the 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 Heater Interface Box and Copy Card TTL Connector Compressor E72R only Fan E72R only Controller LEDs 3 Compressor Powered On LED green Lights while the compressor is running or the refrigeration valve is open 2 amp Defrost Cycle LED yellow Lights while the refrigeration coil is defrosting 9 Temperature or Sensor Alarm red Lights if the temperature is too warm or too cold Flashes if a sensor fails HGL Merchandisers 3 2 START UP OPERATION Rear connections Case temperature sensor Typically senses the temperature of the air in the case Used by the controller to determine when to power on or power off the compressor or refrigeration Evaporator temperature sensor Senses the temperature of the refrigeration coil Terminates a defrost cycle when refrigeration coil ice melts Compressor or refrigeration relay Switches on the compressor or refrigeratio
28. esult in death or serious injury CAUTION Indicate s a hazardous situation which if not avoided could result in minor or moderate injury e NOTICE Not related to personal injury Indicates s situations which if not avoided could result in damage to equipment P N 0515296 A U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A INSTALLATION CERTIFICATION These merchandisers are manufactured to meet ANSI National Sanitation Foundation NSF Standard 7 requirements Proper installation is required to maintain certification Near the serial plate each case carries a label identifying the type of application for which the case was certified ANSI NSF 7 Type I Display Refrigerator Freezer Intended for 75 F 55 RH Ambient Application ANSI NSF 7 Type II Display Refrigerator Freezer Intended for 80 F 55 RH Ambient Application ANSI NSF 7 Display Refrigerator Intended for Bulk Produce HUSSMANN PRODUCT CONTROL The serial number and shipping date of all equipment is recorded in Hussmann s files for warranty and replacement part purposes All correspondence pertaining to warranty or parts ordering must include the serial number of each piece of equipment involved This is to ensure the customer is provided with the correct parts SHIPPING DAMAGE All equipment should be thoroughly examined for shipping damage before and during unloading This equipment
29. fore rechecking the probe tempera ture and making further adjustments P N 0515296 A U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A 3 11 LOAD LIMITS Each merchandiser has a load limit decal Shelf life of perishables will be short if load limit is violated WA R N G Product will be degraded and may spoil if allowed to sit in non refrigerated area LOAD LIMIT AT NO TIME SHOULD MERCHANDISERS BE STOCKED BEYOND THE LOAD LIMITS INDICATED DO NOT BLOCK AIR LOUVERS STOCKING Product Load Limit Product should NOT be placed inside the e Do not load merchandisers until merchandisers are at product past proper operating temperature shelves Allow merchandiser 24 hours to operate before loading product Product Load Limit Proper rotation of product during stocking 15 necessary to prevent product loss Always bring Linii li the oldest product to the front and set the newest to the rear Product Load Limit Product Load Limit 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 HGL BS Shown hamper air curtain performance Drain Do not al
30. 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 is an obvious loss or damage it must be noted on the freight bill or express receipt and signed by the carrier s agent otherwise carrier may refuse claim Concealed Loss or Damage When loss or damage is not apparent until after equipment is uncrated retain all packing materials and submit a written response to the carrier for inspection within 15 days LOCATION These merchandisers are designed for displaying products in air conditioned stores where temperature 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 and 75 F 23 9 C Maximum relative humidity is 55 Placing refrigerated merchandisers in direct sunlight near hot tables or near other heat sources could impair their efficiency Like other merchandisers these merchandisers are sensitive to air disturbances Air 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 HGL Merchandisers 1 2 INSTALLATION SELF CONT
31. ilter drier or muffler The receiver is in the liquid line after the condenser and just ahead of the filter drier The manufacturer may label the receiver as a muffler or a drier but it is in fact an empty shell ATTENTION INSTALLER COMPRESSOR HGL 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 HGL Merchandisers 3 10 START UP OPERATION TEV Adjustment Expansion valves may be adjusted to fully feed the evaporator Before attempting to adjust valves make sure the evaporator is clear or only lightly covered with frost and the merchandiser is within 10 F of its expected operating temperature Adjust the valve as Follows a Attach a probe to the suction line near the expansion valve bulb j Probe Locati 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 is the superheat The valve should be adjusted so that the greatest difference between the two tempera tures is 3 F to 5 Make adjustments of no more than 1 2 turn of the valve stem at a time and wait for at least 15 minutes be
32. l 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 CAUTION Risk of Electric Shock If cord or plug becomes damaged replace only with a cord and plug of the same type 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 HGL Merchandisers 2 2 ELECTRICAL REFRIGERATION Self contained models have factory installed power cords attached at the electrical box NEMA 6 20P Receptacle NEMA 6 15P Receptacle HGL 3 25 76 HGL 1 2 BS TS WARNING Merchandiser must be grounded Do not remove the power supply cord ground REFRIGERATION Self Contained Models Each self contained model is equipped with its own condensing unit The correct type of refrigerant will be stamped on each mercha
33. le 3 Door 4 LED Bars Bs MODERNES par j 8 Hen gt 5 6 Evaporator Fans o E ep Condensate i ue Pan Heater EE L a mpi DT EE EUM v NOTE zl fos BK Dotted line is for the BL ps Thermo Disc Reversible Motor Kit only 5 5 er Yellow Sheath 2 Motor for HGL 1BS TS HGL 2BS TS DEE i8 E B Hn 3 Motors for HGL 3BS TS Ey 2Black Sheath Display i e SE Thermostat Thermostat 5 Sensor Sensor Just for g E Air Temp Temp Defrost HGL3BS TS tel lel 4 8 Wk ak dL de I CONTROL 5 Power Supply 1PH LA Ad Sie Switch 25925 y Power Plug 58 S6 O s sl Ga jO L 57 BK U is Relay des 0 20 AMP 230 V Compressor jm 5 H emr Gi 3 Compressor Relay BK W W WARNING Unplug merchandiser before attempting to make any electrical connections WARNING All components must have mechanical ground and the merchandiser must be grounded CIRCLED NUMBERS Parts List Item NUMBERS Red Y Yellow G Green BL Blue BK Black W White B Brown O Orange Grey 120V Power 120V NEUTRAL 1 FIELD GROUND 757 CASE GROUND P N 0515296 A U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 www hussmann com To obtain warranty information or other support contact your Hussmann representative Please include the model and
34. low product to be placed outside of the designated load limits in the illustration HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers 3 12 START UP OPERATION THERMOMETER The thermometer is located by looking through the right hand door onto the right hand end of the fan grille The thermometer will warm up rapidly when the merchandiser door is held open or when the merchandiser is being restocked After the door is closed it will take some time for the thermometer to decrease to optimal temperature The thermometer and temperature control senses discharge air temperature which is 5 to 10 F colder than the merchandiser temperature LIGHTING Electronically powered T 8 lamps located inside each doorway provide interior lighting The tubes are enclosed in a patented lens system to maintain proper heat around the bulb for maximum light intensity The tubes also protect the product in case of breakage Each HGL model has an ON OFF switch so lights may be turned off to conserve energy during hours when the store is closed The switch is located inside the cabinet above the left hand door This switch only controls the lights 208 230 V power must be shut off at the main disconnect located within the store prior to starting any service or maintenance work Light ballasts are located in mullions of the door frames P N 0515296 A LED LIGHTS LED lights are optional features For details showing how
35. mstance nmn meii Serial Plate m wa un CH S ier ES MN tor friget TEO als d Medie fn enone ron svunana amean DUMP A 6 DE OLY ett E HGL Merchandisers 1 6 INSTALLATION REFRIGERATION UNIT ACCESS Top Mounts The top decorative panel is removed by lifting the panel up and pulling forward Bottom Mounts The lower front panel may be removed by removing screw at bottom and lifting the panel straight upward and over the tabs on which it is hanging The panel is installed by reversing the above procedure Lift up and First out to remove access panel Ensure lower front panel is flat against the floor when installed to prevent air circulation problems for self contained merchandisers If the condensing unit needs to be serviced it can be pulled out to gain access for hard to reach components like the condenser fans To pull out the condensing unit remove the two hold down brackets at the unit base Care must be given to the drain line when re inserting the condensing unit back into the case The drain line must be inside the defrost water evaporation pan to prevent the discharge of water on the floor SEALING MERCHANDISER TO FLOOR Bottom Mounts Only If required by local sanitary codes or if the customer desires merchandisers may be sealed to the floor u
36. n valve for cooling WARNING The optional evaporator fan remains ON when the adjustment knob is in the Off position DISPLAY The display includes three red LEDs and two digits for temperature defrost status and error codes The three display LEDs are red and their behavior matches the LEDs on the controller Compressor Powered On Defrost Cycle Temperature or Sensor Alarm P N 0515296_A START UP Before applying power to the merchandiser remove the front grille Locate the compressor for self contained models CUT THE BAND HOLDING THE COMPRESSOR IN PLACE This band is only needed for shipment and must be cut prior to operation Check thermostat knob is at the appropriate position See temperature adjustment on Page 3 6 Check the check the merchandiser s cabinet thoroughly for loose nuts and bolts Check all electrical connections Inspect the refrigerant lines for any visible damage or chafing Replace the front grille The following list of housekeeping practices will assure trouble free operation Check operation of condenser fan motors Fan blades must turn freely Check drain pan and heater to prevent accidental overflow Make sure doors are closing properly and that gaskets are sealed Make sure all evaporator fan motors are running These can be seen through grille inside of cabinet U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P
37. ndiser s serial plate The merchandiser refrigeration piping is leak tested The unit is charged with refrigerant and shipped from the factory with all service valves open 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 tem perature rises A pump down system is recom mended for outdoor condensing units P N 0515296 A LINE SIZING Remote Models Refrigerant line connections are made at the left end of merchandiser facing front beneath the refrigerated display area The refrigerant line connection size is 3 8 in The suction line is 5 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 connection 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 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
38. onal 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 Unplug merchandiser before servicing Always wear gloves and protective eye wear when cleaning coils c 7 U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A CLEANING CONDENSATE PAN SELF CONTAINED ONLY The condensate water outlet for self contained models empties into a limited capacity condensate pan Debris or dirt accumulation inside the condensate pan or on the heater coil will reduce the pan s evaporation capacity and cause premature heater failure The condensate pan waste will overflow and spill onto the floor if the heater is not properly operating Always wear protective eye wear and gloves when servicing Remove accumulated debris from the condensate 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 condensate pan to overflow Unplug merchandiser before servicing Always wear gloves and protective eye wear
39. ot by time U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A START UP Follow the Safe NET III start up procedures as detailed in Section 3 of this manual Each self contained merchandiser has its own evaporator coil and a pre set thermostatic expansion valve TEV The TEV has been factory set at design conditions to provide the recommended performance CRANKCASE PRESSURE REGULATOR The HGL 1 and HGL 2 merchandisers employ a crankcase pressure regulator in the suction line The CPR is set for 10 psi The purpose of the valve is to maintain a low suction pressure on startup so that the compressor will start properly On start up the valve will hold the suction pressure at the desired setting until the suction pressure drops below the setting then the valve will open If it becomes necessary to check or reset the setting the merchandiser must be warm such as after a defrost cycle or from an initial warm case condition Put a suction compound gauge on the com pressor suction valve Start the compressor If the pressure needs to be reduced turn the adjustment screw clockwise or counterclock wise to raise the pressure Do NOT SET THE VALVE BASED ON THE SERIAL PLATE AMPERAGE RATING AS THE PRESSURE SETTING WILL BE TOO HIGH AND THE COMPRESSOR WILL NOT START PROPERLY HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 3 9 RECEIVER The receiver should not be confused for a f
40. placed into operation Failure to cut compressor shipment band may result in excessive noise or system damage Compressor Band HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers 2 4 ELECTRICAL REFRIGERATION NOTES P N 0515296 A U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 www hussmann com P N 0515296 A 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 TEMPERATURE AND DEFROST CONTROLLER SAFE NET HI USER INSTRUCTIONS Your refrigerated case uses a Hussmann Safe NET temperature and defrost controller to precisely maintain the tempera ture and prevent frost buildup on the cooling coil LEDs indicate when the compressor or refrigeration is on when the case is in a defrost cycle if the temperature is outside the desired range or if there is a sensor failure An adjustment knob allows the temperature to be set within the configured range and can power off the controller and compressor Your controller has been custom configured to pro vide the best temperature and defrost control for your chilled or frozen food Adjustment Compressor Powered On green Defrost Cycle yellow Temperature or Sensor Alarm re Warm Off Position position Cold Position HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A Th
41. r s to close with uniform speed and tightness A slight pitch from front to rear is desirable l HE BACK OF MERCHANDISER SHOULD NEVER BE HIGHER THAN THE FRONT lt 27 3 4 705 3 4 878 gt Drain HGL BS Shown HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 1 5 LEG INSTALLATION Top Mounts Only Install the NSF approved legs after the case 1 near its final location The legs are packaged inside the cabinet Replace the tape and door blocks To install legs Raise one end of the cabinet about 8 inches Block the merchandiser securely and install two legs The leg mounting plates are factory installed and contain a 2 x 13 in tapped hole to mate with the leg assembly The procedure is repeated on the opposite end Three door merchandisers require legs in the center The cabinet should now be positioned at its final location with all legs installed The merchandiser is leveled by turning the bottom section of each leg End to end leveling will make the door s close with uniform speed and tightness A slight pitch from front to rear is desirable SERIAL PLATE LOCATION The serial plate 1s located in the upper left hand corner of the merchandiser s interior The serial plate contains all pertinent information such as model serial number amperage rating refrigerant type and charge Do not remove the serial plate under any circu
42. rrupted even though the refrigeration mode has been initiated The green LED will be lit 6 If power stops the process will start over at step 1 and the time to subsequent defrost will reset P N 0515296 A U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e www hussmann com P N 0515296 A ALARMS AND CODES FLASHING TEMPERATURE OR SENSOR ALARM LED or E2 If the Temperature or Sensor Alarm LED red on the controller and display is flashing a temperature sensor has failed The display shows if the case sensor has failed or E2 if the evaporator sensor has failed If the merchandiser sensor fails refrigeration will run continuously Turn off or repeat a duty cycle of a few minutes on and a few minutes off HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 3 5 DEFROST TERMINATION SWITCH Merchandisers may use a defrost termination switch instead of an evaporator sensor to terminate a defrost cycle The defrost termination switch is temperature activated and senses the completion of defrost Compressor Compressor Off Time If On Time If Sensor Failed Sensor Failed On Compressor or dicc Off On Off On Off Time MANUAL DEFROST DES Note SEN J This procedure initiates a manual or forced defrost Warm Cold 1 Note location of knob setting arm Cold 2 Rotate knob fully counterclockwise until it stops full warm OFF position
43. sing a vinyl cove base trim The size needed will depend on how much variation there is in the floor from one end of the merchandiser to the other Sealing of the lower P N 0515296 A front and rear panels on self contained models may hamper their removal for servicing or maintenance of the condensing unit NOTE Do not allow trim to cover any intake or discharge grilles located in the lower front panel AIR DISTRIBUTION amp REAR FLUE SPACER Air is drawn through the evaporator from front to rear and is discharged down the back wall returning up the face of the glass door to the return air grille NOTE Rear flue spacer must be in place as this forms a discharge air flue at the back of the cabinet SHELVES Each cabinet is provided with four cantilever shelves per door that are adjustable by 1 inch increments The shelves can also be tilted Each cabinet had one bottom shelf per door These shelves have one inch legs to allow proper air flow in the cabinet Behind the shelves are wire flues spacers which allow for proper air flow All shelves and flue spacers are white and epoxy coated for durability and ease of cleaning Shelves should be adjusted to desired operating height Do not load product so that it touches the evaporator coil cover Do not extend product past the front edge of the shelf Extending past the edge will seriously affect internal air flow through the cabinet Shelves are UL rated for a maximum load
44. t 6 in Clearance 6 in Clearance at Rear at Rear HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers 1 4 INSTALLATION MODEL DESCRIPTION Hussmann HGL TS BS models are self contained low temperature vertical display merchandisers designed for ice cream and frozen foods Design features include heated glass doors for fog free visibility automatic defrost efficient foamed in place non CFC insulation cord connection for self contained 208 230 volt application and balanced refrigeration systems for energy saving performance CAUTION Do not walk or put heavy objects on case UNLOADING Unloading from Trailer Lever Bar also known as a Mule Johnson Bar J bar Lever Dolly or Pry Lever Move the merchandiser as close as possible to its permanent location and remove all packaging Check for damage before discarding packaging Remove all separately packed accessories such as kits and shelves Improper handling may cause damage to the merchandiser 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 P N 0515296 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 pla
45. vaporator coil Loosen the clip holding it to the bracket and slide the end of the lead out When installing the new thermometer be sure to run the lead of the new thermometer through the hole in the fan grille first Finish assembly in reverse order The same procedures should be followed when cleaning the end of the sensing lead DEFROST HEATER REPLACEMENT The defrost heaters are firmly embedded in the evaporator and held in place with spring clips To remove the heater first remove all spring clips and pull the defective heater out of the slots in the evaporator starting at the wire supply lead The replacement heater should be firmly seated in the slots by using a small block of wood and a mallet After the new heater is in place replace all the spring retaining clips to assure heater retention One lead of the defective heater may be used to pull the new leads through the cabinet to the respective terminals as marked on each lead NOTE Care must be taken to ensure the drain stub is correctly inserted in the cabinet drain tube for proper drainage HGL Merchandisers 5 2 SERVICE PROBLEM Compressor runs continuously product too warm High head pressure Warm storage temperature Compressor runs continuously product too cold P N 0515296 A TROUBLESHOOTING GUIDE PROBABLE CAUSE Short of refrigerant Inefficient compressor Dirty condenser Cabinet location too warm Restricted condenser
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