HGL- 1, 2 & 3 BS, TS
Contents
1. All components must have mechanical ground and the merchandiser must be grounded R Red Y Yellow G Green BL Blue BK Black W White B Brown O Orange GR Grey P N 0515296 C DOORS AND FRAME HEATERS FAN EES ANTHONY DOORS amp FRAMES a B Y SWITCH SWITCH e Bi BL W BL W 2 9 5 BALLAST E BALLAST 7 At gt E at Al SES 1 CEL zd gt Em AA A4 DOOR m ied OBK E 3 IF HEATERS O O z pi 3 BL Oz FRAME HEATERS T i ES z 38 x ila wel ees ALARM STAT R AS a T8 FLUORESCENT LIGHTING LED LIGHTING BK H OPTIONAL KIT A oO promo BK arp AW o NOTE RED TERMINAL In o EFROST HEATERS a Sia B THERMO R M a WILL NOT BE USED YELLOW SHEATH NG I sinies TOR FEANO oo A Po TT 1H16704002 dora wu EK Pg EVAP2. DOORS AND FRAME HEATERS H SWITCH BY DI 7 BL W 7 IE e R 2 O gt IN INN GA maa o i en aij m ka CP HEATERS m i a GR m a o a IE 5 el lt T BL FRAME HEATERS T HENCE 28 a E ea E Has a Ce j ANTHONY DOORS amp FRAMES HELEN 8 LED LIGHTING E E R ena Heater R W 7 fu Thermo a a Power PURPLE T BK 0 J R ee cea YELLOW SHEATH Supply PURPLE W a B 1H16704002 120 277V Y 4 ze Tr 1 i al 60HZ Ao DISPLAY Tem V 1f j2 co Se cL THERMOSTAT THERMOSTAT alla AN EVAPORATOR FANS SENSOR AIRTEMP SENSOR TEMP 6 CONDENSATE SafeNET CONTROL DEFROST 7 Je P B PAN HEATER 12 3 4 5 6 7 9 10 MN LC 3 Ss Glo 11 12 A IBG AHE mu Bo als da 4 HLGN AS gg on BK 25 Joe X DEFROST HEATERSBK 0 R Thermo disc o SEA 3 Fez nag BK d amp NIN DRAIN BK 7 E 8 3 Y N DRAIN L i HTR L PANHIRI of Ji B BK NIN nlg
3. All components must have mechanical ground and the merchandiser must be grounded R Red Y Yellow G Green BL Blue BK Black W White B Brown O Orange GR Grey P N 0515296_C B Y B Y SWITCH pa BL W SWITCH co Ballast A Sala 9 Dallas BK o 7 DOOR i ore m sz mx T HEATERS o o GR 1 T do m FRAME HEATERS ET z aos es ALARM STAT pi a R AS T8 FLUORESCENT LIGHTING LED LIGHTING B H OPTIONAL KIT O DEFROST HEATERS pg 11 27W x i 34 NOTE RED TERMINAL YELLOW SHEATH Cra I Too BK z N B THERMO Na WILL NOT BE USED oer Y ah peers HIR PAN HIR 9 E 1 0 B o Z Er BLACK SHEATH DISPLAY i O 23 24 NA E 2 cL cL EVAPORATOR FANS THERMOS TAT THERMOSTAT 34 P 5 A BK CONDENSATE SafeNET Ill CONTROL DEFROST 7L18 BK PAN HEATER 12 34567 oi EE na A To u a Z3 delde DOTTED LINE IS FOR THE 24 24 BK Pa SE e e ig Sion REVERSIBLE MOTOR KIT ONLY W BK LINEA PUNTEADAES SOLO Thermo disc c 5 HEH EST 0 2 Y N Y 7 X H e B REVERSIBLE MOTOR NINI BK W OPTIONAL KIT RoT aik
4. DOORS AND FRAME HEATERS 7 2 ANTHONY DOORS amp FRAMES 5 B Y BLY ee SWITCH BHW SWITCH BHW a 3 BK gt Q 8 anast OR 9 GALA R EL me Anew 5 R 10 ST E BK m OBK BL BL 4 ka B xx HEATERSO O GR 5 5 2 a la 2 E FRAME HEATERS D 2 Z ALARM STAT _ aS E AS T8 FLUORESCENT LIGHTING LED LIGHTING i OPTIONAL KIT A o DEFROST HEATERS AN d NOTE RED TERMINAL BK 34 e 3 pise BSA B THERMO WILL NOT BE USED 72 DRAN HP Nj 1 Ma SERIAL 1H16704boz TUBE mae BK 7 8 2M ques PANHTR gf 110 A B N Y 4 Z BK se DI 112 BLACK SHEATH DISPLAY 4 2 8 O Ld Ed EVAPORATOR FANS THERMOSTAT THERMOSTAT 25 26 hd 1 lo SENSOR SENSOR O AIR TEMP TEMP E f BK CONDENSATE SafeNET Ill CONTROL DEFROST 7a T ji PAN HEATER 1234 6 7 443 DOTTED LINE IS FOR THE 9 10 HEE ENE REVERSIBLE MOTOR KIT ONLY 111212 BK lo e le l9 llo op T o LINEA PUNTEADA ES SOLO PARA W 23 24 K OS 10 26 KIT DE MOTOR HENEBSIBLE m n Thermo disc 7 x 5 x z zd oo CONDENSER NAp NINA BK Y 1 2 X me B 1 WY MM BK NIN REVERSIBLE MOTOR W OPTIONAL KIT R R x A R N t o o 2 a 3 amp
5. 1 6 Sealing Merchandiser to Floor 1 6 Air Distribution amp Rear Flue Spacer 1 6 SHELVES CPP AAP 1 6 ELECTRICAL REFRIGERATION Merchandiser Electrical Data 2 1 Field Wiring 44 5 eee cee ee 2 1 Electrical Connections 2 1 Electrical Enclosure 2 1 Power Switches nnan 2 1 Electrical Outlet 2 1 Refrigeration Self Contained 2 2 Refrigeration Remote 2 2 Line Sizing Remote 2 2 Koolgas Remote 2 2 C OOMPreSSOL aane in ada AMA binds 2 3 Condensate Pan 2 3 Shelves 0 0 0 0 eee ee ee eee 2 3 Air Distribution and Rear Flue Spacer 2 3 NOTES usen ooh cs po 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 Instructions 004 3 1 Dp hhc kee eee ea aS 3 2 DL ms 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 DID mananahan sess ees PAG ENS 3 9 Crankcase Pressure Regulator 3 9 Ses bie SM ATA SURE
6. 7 N WARNING ad bs R 3r pa Disconnect power before attempting O BK to make any electrical connections 95 NET E LINE 1 O POWER SUPPLY SWITCH 208 230V B J BK AR ma BA 60HZ ik an s7 S5 R 1PH ki BK GED 20 AMP R BL E CONNECT TO SOLENOID VALVE di OR COMPRESSOR CONTROL All components must have mechanical ground and the merchandiser must be grounded R Red Y Yellow G Green BL Blue BK Black W White B Brown O Orange GR Grey HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Glass Door Merchandisers A 12 SERVICE HGL 1 BS TS Self Contained DOORS AND FRAME HEATERS FAN SWITCHES ANTHONY DOORS amp FRAMES
7. EE ES FRAME HEATERS E E E x B X a m ah PURPLE W AS LED LIGHTING R Heater pw a Thermo p Power 5 o NOTE RED TERMINAL PEN PURPLE 2 BK v r od PURPLE W Bug 120 277V Y za BK BLACK SHEATH DISPLAY 60HZ A O THERMOSTAT 1PH ids a oe SENSOR TEMP sists UT DEFROST AIR TEMP sigs IN 9090 GATANS CONDENSATE SafeNET Ill CONTROL Lie 1 B PAN HEATER 1 2 3 4 5 e 7 T ble 6 EE EIE afia I LO 6 6 891011 E 8 8 Thermo disc e E 2 X on zm is NG NING 4 DEFROST HEATERS Bo BK 34 B BK VN mes L sif N DHAN o BK 7 je R Re Disconnect power before attempting HIR GRAN of To BK to make any electrical connections 11 a EUM M O CNES NET O O bi SN POWER SUPPLY SWITCH 208 230V BK S8 S6 60HZ pa P s7 S5 1 i BE 1 oro 20 AMP CONNECT TO SOLENOID VALVE R BL BL pi OR COMPRESSOR CONTROL WARNING P N 0515296_C HGL 3 BO TO Remote FAN SWITCHES A 11
8. U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C 2 1 ELECTRICAL REFRIGERATION MERCHANDISER ELECTRICAL DATA Refer to Appendix A of this manual or the merchandiser s serial plate for electrical information FIELD WIRING Field wiring must be sized for component amperes stamped on the serial plate Actual ampere draw may be less than specified ALWAYS CHECK THE SERIAL PLATE FOR COMPONENT AMPERES ELECTRICAL CONNECTIONS All wiring must be in compliance with NEC and local codes All electrical connections for remote models are to be made 1n 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 1s 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 1s performed on this piece of equipment make sure the power supply to the merchandiser is disconnected ELECTRICAL OUTLET Before the merchandiser 1s connected to any wall circuit use a voltmeter to check that
9. 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 1n 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 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 0515296_C Probe Locations U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C LOAD LIMITS Each merchandiser has a load limit decal Shelf life of
10. 3 9 TEV Adjustment 3 10 Load Limits 6006544000 rs 3 11 Stocking usas ceed EER IE ee paws 3 11 Thermometer esses 3 12 LOL 2252222342 9 29 5 x95 MA ds 3 12 Door Switches 000 3 12 Door Defrost Heater Thermostat 3 12 Alarm Thermostat 3 12 MAINTENANCE Care and Cleaning 4 Do NOT Use 444 sane enor oe ene eee 4 1 bo AP AY 4 1 Cleaning Stainless Steel Surfaces 4 2 Cleaning Coils 4 2 Cleaning Condensate Pan 4 3 NOTES ee Ka PERRA 4 4 SERVICE Replacing Fan Motors and Blades 5 1 Replacing Thermometer 5 1 Defrost Heater Replacement 5 1 Troubleshooting Guide 5 2 Lighting Problem Solution 5 4 HGL Merchandisers vi APPENDIX Part Numbers A 1 HGL IBS Plan View A 3 HGL 2BS amp HGL 3BS Plan View A 4 HGL ITS Plan View A 5 HGL 2TS amp HGL 3TS Plan View A 6 HGL Dimensions amp Electrical Data A 7 Cross Sections and Refrigeration Data A 8 HGL Wiring Diagrams A 9 REVISION HISTORY REVISION C JUNE 2013 Replaced wiring diagrams added new for each model A 9 Updated drawing on Page 3 7 REVISION B FEBRUARY 2012 Revised to B for Wind Chill purposes ORIGINAL ISSUE JANUARY 2011 P N 0515296 C Veo X
11. 5 14 3 8 365 REFRIGERATION OUTLET 28 7 8 733 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers A 6 APPENDIX A TECHNICAL DATA HGM 2TS Plan View Dimensions shown as inches and mm 52 1321 23 7 5 606 7 3 4 451 3 1 4 83 15 1 2 394 1 2 28 724 724 9 229 1 4 34 229 870 1 8 36 918 F A 13 3 4 349 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 s 397 CONDENSING UNIT 3 3 86 16 406 36 838 VY 924 ae 1 4 718 gt REFRIGERATION DRAIN PAN OUTLET LOCATED ON THE BASE 9 3 4 248 ELECTRICAL BOX P N 0515296 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C A 7 HGL Dimensions Exterior Interior Volume TE liters cubic feet 8 Refrigerant Type Yong Run Amps Hei 207e sets sone 685 419 nao 208280 79 Field hard wired Exterior ee MICRON OGRE Refrigerant liters cubic feet Tvpe lo B P volts Run Amps HGL 1TS 84 1 4 685 24 19 208 230 2 cos 2419 Ra feoeo 79 1327 46 86 1 RA 208250 95 1327 146 86 R409 208 200 89 1999 70 60 1990 7060 Rasa aoeaso 102 Field hard wired HGL
12. Green BL Blue BK Black W White B Brown O Orange GR Grey HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers A 10 HGL 2 BO TO Remote APPENDIX A WIRING DIAGRAM DOORS AND FRAME HEATERS _FAN SWITCH All components must have mechanical ground and the merchandiser must be grounded R Red Y Yellow G Green BL Blue BK Black W White B Brown O Orange GR Grey B Y BL W IE R Me gt E wile BK xx di 4 4 P DOOR zx 108 ET dL HEATERS En ANTHONY DOORS amp FRAMES GR cr c E o
13. If power stops the process will start over at step l and the time to subsequent defrost will reset P N 0515296 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C ALARMS AND CODES FLASHING TEMPERATURE OR SENSOR ALARM LED E1 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 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 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 Off On Off On Status Off Time MANUAL DEFROST a Note This procedure initiates a manual or forced defrost T7 Pd Warm Cold 1 Note location of knob setting 2 Rotate knob fully counterclockwise until it stops full warm OFF position y o N N Warm Cold 3 After 10 seconds but before 20 seconds rotate knob fully clockwise until it stops
14. BALLAST xk Na lx 1 DOOR ch HEATERS O O GR o lt lt n B 5 a E BL q lt E EE FRAME HEATERS HG E d 8 x le BK a a a ALARM STAT R Bag n AS T8 FLUORESCENT LIGHTING LED LIGHTING BK OPTIONAL KIT Ao 1 2 JA DEFROST HEATERS NOTE RED TERMINAL BK 3 pe BK ef B THER R WILL NOT BE USED 0 701 HP Dp ON SERIAL DRAIN AMAM Gg BK 7 IM 2 02 TUBE DRAIN eB ST HTR L PANHTR 3 B 8 Y gt BK BLACK SHEATH DISPLAY as Naa O THERMOSTAT dila s2 os EVAPORATOR FANS a SENSOR sigla DEFROST Q 5 6e H 4 BK CONDENSATE SafeNET Ill CONTROL FILA BK PAN HEATER 12 3 4 5 67 7 9 E zliziEIgi zz nile TIE Ee st J lla DOTTED LINE IS FOR THE alf is BK N 21g ue el AA 9 4011 REVERSIBLE MOTOR KIT ONLY W nel bo BK LINEA PUNTEADA ES SOLO O R Thermo disc n 5 gt SF 3 d mos PARA KIT DE MOTOR FAN REVERSIBLE CONDENSER Y A y A Xo Kae B WARNING REVEREIBIE MOTOR W ems W n Disconnect power before attempting ROM to make any electrical connections OPTIONAL KIT Ae A A DN BK O NES E UNE T O En rr 1PH POWER PLUG GRN Relay POWER SUPPLY 60 Hz NEMA 6 20 COMPRESSOR 7 B Heaters BK a BK 208 230 V W LAAT a GRO OE GEEN A NNN N BK R E R PLUG END T e R 20 AMP 250V DETAIL PURPLE cams BL 0 IRelaytl P BL NIN A Comp LR Ane BK INN R W All components must have mechanical ground and the merchandiser must be grounded R Red Y Yellow G
15. Electrical Data Refrigeration Load Mou NN BTU h kWh day 709 oa HGLAB ER I so HGL 2BS HGL 2B 65 HGL 3B Refrigeration load calculated at 30 F evaporation temperature and 105 F condensing temperature Refrigeration Load A C Load mL BTU h BTU h kWh day Dre 2a7 HGLAT Des HGLZTS HGL 2T HGL 3TS e HGL 3T eo ft 2 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 A TECHNICAL DATA Dimensions shown as inches and mm 34 3 4 883 gt mal 34 3 8 873 84 3 8 2143 6 1 4 159 i 27 1 2 699 P N 0515296_C DRAIN EVAPORATOR REFRIGERATION DATA HGL Thermostat Setting CI CO 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 PHYSICAL DATA Refrigerant Charge HGL 1 HGL 2 35 3oz 1 kg 37 9 oz 1 074 kg Note This data 1s based on store temperature and humidity that does not exceed 75 F and 55 R H unless otherwise stated Schedule defrost at night
16. Pan Heater DP 4996638 Condensate Pan Heater DP 4916279 Condensate Pan U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C A 3 HGL 1BS Plan View Dimensions shown as inches and mm 12 1 8 308 REFRIGERATION OUTLET 3 3 3 8 86 WATER DISSIPATION TRAY 19 483 29 22 746 978 ELECTRICAL CONDENSING o m WIREWAY par 305 4 3 4 121 ELECTRICAL FIELD CONNECTION POINT p 28 7Is 733 HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers A 4 APPENDIX A 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 Dimensions shown as inches and mm 13 1 2 343 29 1 2 749 15 3 8 391 15 3 s 391 OA B 0 D 27 ls 695 27 2 699 LEO T Aa LG OH 13 5 6 346 3 1 4 83 3 3 s 86 6 A C E G H P N 0515296 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296 C A 5 HGL 1TS Plan View Dimensions shown as inches and mm COILS 18 7 s 479 CONDENSING UNIT 00 DRAIN PAN LOCATED ON THE BASE ELECTRICAL BOX N 36 3 8 2 E 25 3 s 18 5 s ip 473 173 J 18 1 2 le 470 7 18 181 Vi EN EN 4 1 8 105 7 5 8 194
17. R f A BK tbo ONS D O INE LINE 1 O TON DE HID POWER PLUG UT 1PH NEMA 6 20 16 POWER SUPPLY 60 Hz Heaters ES 6 208 230 V RP R BK BK R GA ANN Bre 07 PLUG END COMPRESSQ a I 8 i 20 AMP 250 V DETAIL 8 In Bt R MN BL ANNAN f d R WARNING Unplug merchandiser before attempting TR BK to make any electrical connections R U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 www hussmann com P N 0515296_C A 13 HGL 2 BS TS Self Contained
18. 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 7 __ Defrost Termination Switch optional Power Interface Box and Copy Card TTL Connector Heater Compressor E72R only Fan E72R only Controller LEDs sf Compressor Powered On LED green Lights while the compressor is running or the refrigeration valve is open st Defrost Cycle LED yellow Lights while the refrigeration coil 1s defrosting 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 e 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 e Senses the temperature of the refrigeration coll Terminates a defrost cycle when refrigeration coil ice melts Compressor or refrigeration relay e Switches on the compressor or refrigeration valve for cool
19. com P N 0515296_C 3 3 1 Plug in the merchandiser N 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 e 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 HGL Merchandisers 3 4 START UP OPERATION SEQUENCE OF OPERATION HGL BS TS Compressor Starts V Time to Subsequent Defrost OT 12 Hour or Demand Defrost One to Subsequent Defrost Initial Defrost 12 Hour or Demand Defrost Two Hours After Start Up Pull down Compressor On Refrigeration Cycle Compressor runs Refrigeration Cycle continuously until it reaches its cut out setting Pulldown After Defrost HP Compressor ON Maximum Defrost Maximum Defrost Time 50 Minutes Time 50 Minu
20. end of the fan grille The thermometer will warm up rapidly when the merchandiser door 1s 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 1s 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_C LED LIGHTS LED lights are optional features For details showing how 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
21. 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 e Always use a dedicated circuit with the amperage stated on the unit e Plug into an outlet designed for the plug Do not overload the circuit Do not use long or thin extension cords Never use adapters e If in doubt call an electrician N WARNING Risk of Electric Shock If cord or plug becomes damaged replace only with a cord and plug of the same type N WARNING LOCK OUT TAG OUT To avoid serious injury or death from electrical shock always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component This includes but is not limited to such items as doors lights fans heaters and thermostats 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 BS TS HGL 1 2 BS TS N 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 merchandiser s serial plate The merchandi
22. 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 on SS Replace return air grille and fasten air grille to coil cover OO Turn on power NO 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 N WARNING LOCK OUT TAG OUT To avoid serious injury or death from electrical shock always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component This includes but is not limited to such items as doors lights fans heaters and thermostats HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A REPLACING THERMOMETER The thermometer may be replaced by removing the two screws holding 1t 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 evaporator 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 or
23. while lights are off U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 www hussmann com P N 0515296_C HGL 1 BO TO Remote A 9 FAN SWITCHES DOORS AND FRAME HEATERS ba ANTHONY DOORS 8 FRAMES B Y SWITCH BY I BL W switcH BL W BK 3 z 0 4 r1 eR 0 9 5 R E eg
24. 230V CO 25S040 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 F1 4612642 Filter Drier FP4483064 Safe Net III Harness HGL 2 4441283 HGL 1 HGM 2 Power Cord 15 Amp 208 230V CU 8420119 Compressor EP4441278 HGL 3 Power Cord CO 25S040 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 Relay l 42 Filter Drier VR 4613171 CPR Valve DO 2987931 Door Assembly Silver HGL Merchandisers A 2 APPENDIX A TECHNICAL DATA P N 0515296_C Item Part Description Item Part Description REFRIGERATION CONTINUED HGL 2 HGL 3 HE 4850852 Defrost Heater CU 8420123 Compressor HE 4851201 Drain Heater CO 4670393 Condenser HE 4850861 Drain Pan Heater 00410821 Condenser Fan Motor HE 4850846 Condensate Pan Heater FB 4780788 Condenser Fan Blade DP 4916279 Condensate Pan EV 4671074 Evaporator VR 17S115 TXV HGL 3 FI 4612642 Filter Drier HE 4850744 Defrost Heater HE 4850744 Drain Heater HEATERS HE 4850324 Drain Pan Heater HGL 1 HE 4850846 Condensate Pan Heater HE 4850905 Defrost Heater DP 4916279 Condensate Pan HE 4851200 Drain Heater HE 4850896 Drain
25. G LINE 2 LINE 1 C o AA AG 1PH GAD TT ico id 60 Hz POWER PLUG compressor amp Qm 5 Heaters Ji 1 2s 208 230 V NEMA 6 20 W LAAR is BK ZERD E Bry O R NANA BK R So 3A R PLUG END e imper R DETAIL of M PURPLE ek BL e n R Relay BL MAAA Comp PR R WARNING BK v Unplug merchandiser before attempting guias R to make any electrical connections R All components must have mechanical ground and the merchandiser must be grounded R Red Y Yellow G Green BL Blue BK Black W White B Brown O Orange GR Grey HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Glass Door Merchandisers A 14 SERVICE HGL 3 BS TS Self Contained
26. LISTED HUSSMANN EPH HGL 1 2 amp 3 BS TS Bottom Top Mount Low Temperature Remote and Self Contained Glass Door Merchandisers HGL 2BS HGL 3TS Installation 8 Service Manual N ce N aee or we E wv SN P N 0515296 C e 1 20 xof June 2013 e vw Ke P N 0515296_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 frozen 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 1 800 522 1900 www hussmann com 2013 Hussmann Corporation P N 0515296_C ANSI DEFINITIONS VI INSTALLATION Certification aka ama AA ox ade kg 1 1 Hussmann Product Control 1 1 Shipping Damage 1 1 Location 2295 9 299399 98 29 92 9 2 929 4 1 1 Self Contained Location 1 2 Model Description 1 4 Unloading lessen 1 4 Exterior Loading 1 4 Shipping Skid 1 4 Merchandiser Leveling 1 5 Leg Installation Top Mounts Only 1 5 serial Plate Location 1 5 Refrigeration Unit Access
27. ORATOR FANS zw mE zi HTR DATE B Y 4 76 Ea nigh B a il ER BLACK SHEATH DISPLAY 07 mp as EB EB Es 70 O a4 AIR TEMP DEFROST 18 Lr 8 CONDENSATE SafeNET Ill CONTROL rje 12 34567 U DOTTED LINE S FOR THE sf le PAN HEATER EN Mali jala REVERSIBLE MOTOR KIT iae fel 5 6 B e a Elke ONLY W 23 FA BK BK 3 8 91 0 LINEA PUNTEADA ES SOLO j Thermo disc c gt HES ME PARA KIT DE MOTOR e e REVERSIBLE Y y X rs B an A EM e BK REVERSIBLE MOTORS Fan DEAD W OPTIONAL KIT Condenser B y Me R f 2 BK LTK WO G6 Fan a 2 N 8 Condenser EE o ERE O IE POWER SUPPLY 1PH POWER PLUG Va zs 5 Relay SWITCH 60 Hz NEMA 6 20 AO B 07 A BK sa si BK 208 230 V oc W Na f A oi NG E O ppp R S6 PLUG END covpEsso E a R BK 20 AMP 250 V DETAIL PURPLE Ca BK SE i di 1 Relay HZ BL VN N Comp AR BK WARNING 75 A Unplug merchandiser before attempting B to make any electrical connections U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 www hussmann com NOSIS PUPU OS OS OS OS SOCIO FOS te MEN dura ee quida EE Ee LG EEG dua dura quM AREA NENA GOP SNS ANG A SOEKE SO AS NB POE PO AS NB SO SEAT e S de SA q AG MAA q DS MAA se 2 Gs C9 7 ae IS 9 AS WAG Ko Q DS 4 To obtain warranty information y NG or other support conta
28. ances 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 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 Air Intake Condensing Unit Side View nm Zero Clearance at Sides 12 in Clearance at Rear and on Top 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 1s necessary to provide free air movement to and from the condenser for maximum operating efficiency Top View ng ECG Air Air Exhaust Intake GE nm Zero Clearance at Sides 12 in Clearance at Rear and on Top P N 0515296 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C 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 cond
29. cabinet 1s equipped with both frame and door heaters These are thermostatically con trolled and will not come on until the cabinet is 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 F 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 1 800 890 2900 e www hussmann com P N 0515296_C 4 1 MAINTENANCE CARE AND CLEANING Long life and satisfactory performance of any equipment 1s dependent upon the care it receives To ensure long life proper sanitation and minimum maintenance costs these merchandisers should be thoroughly cleaned all debris removed and the interiors washed down weekly Exterior Surfaces The exterior surfaces must be cleaned with a mild detergent and warm water to protect and maintain their attractive finish NEVER USE ABRASIVE CLEANSERS OR SCOURING PADS Interior Surfaces The interior surfaces may be cleaned with most domestic detergents ammonia based cleaners and sanitizing solutions with no harm to the surface Self contained models empty into a limited capacity condensate pan which will overflow if excess
30. ce 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 C SOLUTION Check light switch Check continuity to ballast Check to see 1f 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 5 Check voltage New bulbs tend to flicker until used Check voltage Replace ballast U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com APPENDIX A TECHNICAL DATA A 1 HUSSMANN CORPORATION 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
31. contains all pertinent information such as model serial number amperage rating refrigerant type and charge Do not remove the serial plate under any circumstance BUSSMANN m eae a ERE om e a Serial Plate 0 UE Mi TI 0 HGL Merchandisers 1 6 INSTALLATION REFRIGERATION UNIT ACCESS Top Mounts The top decorative panel 1s 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 1s hanging The panel is installed by reversing the above procedure Lift up and First out to remove access panel Ensure lower front panel 1s 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 using a vinyl cove base trim The size ne
32. ct your SA 9 Hussmann representative KO 6S Please include the model and ON KY serial number of the product KA e K Q GR BEA 9 Hussmann Corporation Corporate Headquarters Bridgeton Missouri U S A 63044 2483 01 September 2011 KO 6S ve wb ue Nba ee Se ee ie ie Se Se N Co XL tse ai a ak d di di a ib di a ae di E AT PAO PA E NA E AT AT Fa Fa OSS EO SCA CA NECROSE CAL SC Hussmann Corporation 12999 St Charles Rock Road Bridgeton MO 63044 www hussmann com
33. der 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_C TROUBLESHOOTING GUIDE PROBABLE CAUSE Short of refrigerant Inefficient compressor Dirty condenser Cabinet location too warm Restricted condenser 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 c
34. e ve we ve we RR RR RR RR RR RR oe o eo o KA EG ANSI Z535 5 DEFINITIONS DANGER Indicate s a hazardous situation which if not avoided will result in death or serious injury situation which if not avoided could result 1n death or serious injury WARNING Indicate s a hazardous CAUTION Indicate s a hazardous situation which 1f not avoided could result in minor or moderate injury NOTICE Not related to personal injury Indicates s situations which 1f not avoided could result in damage to equipment U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_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 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 Hussmanns files for warranty and replacement part purposes All correspondence pertaining to warranty or parts ordering mu
35. eded will depend on how much variation there 1s in the floor from one end of the merchandiser to the other Sealing of the lower P N 0515296_C 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 1s 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 1s 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 of 120 Ibs DO NOT OVERLOAD THE SHELVES
36. enser The condensing unit 1s located at the bottom of these merchandisers Air Exhaust Rear Side View Top View Air Air E Air Intake Exhaust Intake N N NG Zero Clearance NG Zero Clearance at Sides at Sides 24 in Clearance 24 in Clearance at Front at Front 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 N 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 f
37. 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 Sate MET Ill o 4 O sg y O dk O 9 OFF Position Safe NET Ill Control Set at Full Cold Position Safe NET Ill o 4 O di O O 9 Safe NET Ill 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 1s set the controller reverts to the sensed temperature in the merchandiser P N 0515296_C yj HUSSMANN 5 Hussmann Display at Full Cold Model HGL 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 U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C 3 7 Typical Sensor to Control Configuration Black Air Yellow Sheath Evaporator Sensor Defrost Termination Bladi Evap Black Sheath Evaporator Sensor Defrost Term Air Sensor Display inserted into the Evaporator A Fins or into the Suction Line A White Yellow Sheath alo Common for 7 Both Sensors Qt Yellow Sensor Defr
38. ing N CAUTION 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 0 Defrast Cycle a Temperature or Sensor Alarm HUSSmann P N 0515296 C 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 1s 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 e 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 1 800 890 2900 e www hussmann
39. nsure 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 door s to close with uniform speed and tightness A slight pitch from front to rear 1s desirable THE BACK OF MERCHANDISER SHOULD NEVER BE HIGHER THAN THE FRONT 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 is 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 1s 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 1s desirable SERIAL PLATE LOCATION The serial plate 1s located 1n the upper left hand corner of the merchandiser s interior The serial plate
40. o cool N WARNING 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 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_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 access to these fans Remove product and place in a refrigerated area Turn off power to the merchandiser 2 Remove
41. or 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 C U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C 3 1 START UP OPERATION TE ATTENTION INSTALLER It is the contractor s responsibility to install merchandiser s in accordance with all local building and health codes Safe NET I M 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 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 Knob ri Compressor Powered On green Defrost Cycle yellow Temperature or Sensor Alarm 7 red Warm i Position Position Position HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A The front of the controller has an
42. ost Termination Evaporator Black Sensor Control Air peu Control Sensor Black Sheath Black Air Sensor 8 Black Evaporator Sensor 9 lt 11 Not Used White Ne Common Both Sensors 10 Detail A HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A HGL Merchandisers 3 8 START UP OPERATION CONTROLS and ADJUSTMENTS Refrigeration Controls Product Application HGL Low Temp Frozen Food Remote and Self 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 P N 0515296_C Discharge Air Temperature b to 15 F Defrost Controls Failsafe Time Minutes Temp Termination Defrost Frequency per day Type of Defrost 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 U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C START UP Follow the Safe NET III start up procedures as detailed in Section 3 of this manual Each self contained merchandiser has it
43. perishables will be short 1f load limit is violated LOAD LIMIT AT NO TIME SHOULD MERCHANDISERS BE STOCKED BEYOND THE LOAD LIMITS INDICATED DO NOT BLOCK AIR LOUVERS 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 front and set the newest to the rear 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 N WARNING Product will be degraded and may spoil if allowed to sit in a non refrigerated area Product Load Limit Do not load q product past shelves Product Load Limit Product Load Limit Product Load Limit Product Load Limit Drain HGL BS Shown HGL Merchandisers 3 12 START UP OPERATION THERMOMETER The thermometer is located by looking through the right hand door onto the right hand
44. rom the trailer P N 0515296_C 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 is removed the merchandiser must be lifted NOT PUSHED to reposition To remove the skid remove screws attaching skid to the merchandiser Check floor where cases are to be set to see 1f it 1s a level area Determine the highest part of the floor N CAUTION Do NOT remove shipping crate until the merchandiser is positioned U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C 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 e
45. rost 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 U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 e www hussmann com P N 0515296_C 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 1s 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 IN WA R N N G springs The compressor 1s banded down during 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 placed into operation Failure to cut compress
46. s 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 ss 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 1t 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 filter 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
47. ser 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 1s 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_C 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 N 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 KOOLGAS Remote Models If Koolgas defrost 1s 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 def
48. st include the serial number of each piece of equipment involved This 1s to ensure the customer is provided with the correct parts SHIPPING DAMAGE All equipment should be thoroughly examined for shipping damage before and during unloading This equipment has been carefully inspected at our factory Any claim for loss or damage must be made to the carrier The 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 1s not apparent until after equipment is uncrated retain all packing materials and submit a written response to the carrier for inspection within 15 days LOCATION These merchandisers are designed for displaying products in air conditioned stores where temperature 1s maintained at or below the ANSI NSF 7 specified level and relative humidity 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 disturb
49. t 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 IT 7 U S amp Canada 1 800 922 1919 e Mexico 1 800 890 2900 www hussmann com P N 0515296_C 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 1s 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 when cleaning condensate pan HUSSMANN CORPORATION e BRIDGETON MO 63044 2483 U S A 4 3 N WARNING 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 t
50. tes Failsafe Failsafe Defrost cycle is temperature Defrost Cycle terminated Defrost initiates Terminates at two hours after start up 48 F Compressor When powered up there will Starts be a delay of 30 sec at start up before the compressor starts ON A OFF AUN Compressor mal Start Up Off Cycle Safe NET Ill 4s 77 GREEN REFRIGERATION GREEN REFRIGERATION YELLOW DEFROST YELLOW DEFROST RED ALARM RED ALARM OFF POSITION DISPLAY Safe Net III 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 is 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 LEDSs 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 1s interrupted even though the refrigeration mode has been initiated The green LED will be lit 6
51. 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 N WARNING LOCK OUT TAG OUT To avoid serious injury or death from electrical shock always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component This includes but is not limited to such items as doors lights fans heaters and thermostats 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 P N 0515296_C 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 sof
52. water is used in cleaning Do NOT Use eAbrasive 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 eDisconnect 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 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 CONDENSATE PAN THAT WILL OVERFLOW IF TOO MUCH WATER IS INTRODUCED DURING CLEANING Allow merchandisers to dry before resuming operation eAfter cleaning 1s completed turn on power to
53. ycling 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 1 800 890 2900 www hussmann com P N 0515296_C 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 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 Repla
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