HRE70B Service Manual
Contents
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8. 20 FRAME HEATER SETTING 20 k CANCELLING SOFT START 21 7 ERROR CODES 21 m CONTROLLER BOARD MODEL SETTING 21 5 TIMING CHART 22 al STARTUP CONTROL 22 b DEFROST 23 6 BUTTON OPERATION 25 OPERATION PANEL 25 b BASIC OPERATION 25 c CHECKING AND DELETING ERROR RECORDS 25 ad gt gt en Quom d ADJUSTING OPERATION SETTINGS 26 e MODEL SETTING AT CONTROLLER BOARD REPLACEMENT 28 SERVICE DIAGNOSIS 30 ERROR CODES 30 FLOWCHART
9. X1 RELAY 406132 08 5011 COMPRESSOR 453580 0 AD SR1 STARTER 453581 0 My 560 START CAPACITOR 456350 0 Xia JM MOTOR CONDENSER P00156 0 W FAN MOTOR INTERIOR 48906100 THERMISTOR INTERIOR 9 res THERMISTOR PROTECTION 17 00598 0 H DRAIN TANK HEATER P00153 02 CORD EEATER OUTER FRAME Cb Bk Hs CORD HEATER OUTER FRAME W H DEFROST HEATER 00149 01 Bk w F142 FUSB DRAIN TANK 94 143326202 o6 E E W af ral 5 Gr ka x5 77 vit EVAPORATER P00165 01 AB 20 CONDENSER P00167 01 BE MYR DRYER P00007 01 Si 9212 E 5 1 HEAT 252532601 CAPILLARY TUBE 7K1024150 H2 R WIRE COLOR E WIRE COLOR CODE Br BROW PRIMARY SECONDARY THIN LBu LIGHT BLUE W WHITE PINK 15 R RED Bk BLACK O ORANGE BLUE xl Gr Y RELAY LAYOUT 312405L014A 14 2 REFRIGERATION CIRCUIT Condenser Refrigerant Capillary Tube Interior Fan Motor HFC 134a HRE series 404 series 15 Heat Exchange 3 ENERGY SAVING FEATURES a FRAME HEATER ENERGIZING CONTROL The Frame Heater is energized intermittently to keep the Front Frame surfaces at the optimum temperature for preventing condensation As the optimum surface temperature depends on the a
10. 12 e HRE TOB F 13 H ARE eeen 14 2 REFRIGERATION CIRCUIT 15 3 ENERGY SAVING FEATURES 16 a FRAME HEATER ENERGIZING CONTROL 16 b INTERIOR DC FAN MOTOR 17 c CONTROLLER BOARD 17 d REFRIGERATION UNIT 17 ASEEEGTRONIG CONTROLS en 18 a SET POINT TEMPERATURE 18 b CABINET TEMPERATURE DIFFERENTIAL 18 DEFROST CYCLE 18 d DEFROST COMPLETION TEMPERATURE 18 e TEMPERATURE DISPLAY CYCLE 18 fl COMPRESSOR SOFT START 19 HIGH PRESSURE SWITCH seen 19 h CHECKING AND ADJUSTING SET POINT TEMPERATURE 20 MANUAL DEFROST
11. Fan Motor Interior Fan Motor Defrost Heater Duct Heater _____ ji Detects ehd of cycle 20 C Defrost Thermistor Temp i Defrost Drain i Interior Display until Thermistor detects 10 min FM delay delay 5min 3min i Temp Display gt lt gt lt 23 HRE F series Heater defrost T 2 lt 20 sec OFF 3 Update 1 Maintain duty ratio _ 15 min OFF duty ratio Update duty ratio Frame Heater A Compressor Tel Saas Condenser 4 15 sec ON gt Interior Defrost Heater Detects end of cycle 30 C Defrost Interior Thermistor Temp gt lt gt lt gt lt gt Defrost Drain Interior Display until Thermisto 5 5 min FMdelay delay idetects 5 min 3min ie GNE Temp Display Temp dF Temp Subject of Control Frame Heater 1 Remains OFF for max 15 min after HRE Save energy defrost cycle starts until Interior Fan Motor delay ends at longest Remains OFF for 20 sec after Improve Compressor Compressor starts following drain cycle startability 3 Duty ratio is not updated and maintains HFE Prevent previous ratio after defrost cycle starts condensation and until Interior Fan Motor delay ends Interior Fan Remains ON for 15 sec after Motor Compressor sta
12. 33 COMPONENTS 35 CONTROLLER 37 a SERVICING CONTROLLER BOARD 37 b CHECKING THERMISTOR 38 REMOVAL AND REPLACEMENT OF COMPONENTS 39 CONTROLLER BOARD AND THERMISTOR ess 39 a REMOVAL OF CONTROL BOX 39 b REPLACEMENT OF CONTROL BOX 39 THERMISTOR 39 RELAY BOX 41 POWER SUPPLY BOARD 41 REFRIGERATION CIRCUIT 41 COMPRESSOR 41 b CONDENSER AND DRIER 42 EVAPORATOR 42 d CONDENSER FAN MOTOR 43 e DEFROST HEATER AND THERMAL FUSE HFE 43 EVAPORA
13. nterior Fan Motor Open circuit defective Interior Fan Motor 12V DC output Refrigeration circuit clogged Capillary Drier D Power Supply Board D Refrigerant leak Compressor Defective PROBLEM PROBLEM POSSIBLE CAUSE numbers corresponding to 3 COMPONENTS Poor refrigeration Slow refrigeration Set point is reached Interior overloaded Set point is not reached See Compressor runs with no refrigeration above Normal temp indication with poor refrigeration Interior overloaded Heat load inside interior Fan Motor Open circuit defective Power Supply Board Interior Fan Motor 12V DC output Interior Thermistor Abnormal resistance bad contact location Controller Board Defective Frosted evaporator Defrost cycle setting readjusted Too long Defrost Thermistor Abnormal resistance Defrost Heater Open circuit defective Relay Relay Board Defrost Heater output Thermal Fuse Blown Excessive refrigeration Compressor runs continuously E5 error indication record Interior Thermistor Open circuit short circuit High temp indication OInterior Thermistor Location Normal temp indication Interior Thermist
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15. HOSHIZAKI COMMERCIAL REFRIGERATOR FREEZER MODEL 7 HRE 140B F HFE 70B HFE 140B SERVICE MANUAL CONTENTS PAGE I GENERAL INFORMATION 1 1 SAFETY INSTRUCTIONS iiid 1 2 DIMENSIONS SPECIFICATIONS 3 a HRE 70B 3 b HRE 140B 4 c HFE 70B 5 d HFE 140B 6 e HRE 70B F 7 II E ne 8 TECHNICAL INFORMATION 9 1 WIRING DIAGRAM teit ee 9 HRE 70B 9 b HRE 140B 10 c HFE 70B 11 d HFE 140B
16. 3 7 K from set point temp 2 0 to set point temp 1 7 Note On the Controller Board only Actual differential may be 4 6 K c DEFROST CYCLE Every 6 hours from the beginning of a cycle to the beginning of the next cycle d DEFROST COMPLETION TEMPERATURE Off cycle defrost HRE series 3 Heater defrost HRE F series 30 Heater defrost HFE series 20 C e TEMPERATURE DISPLAY CYCLE The Temperature Display Window renews its cabinet temperature display every 30 seconds The display remains the same for 30 seconds even if the actual temperature changes in the meantime During a defrost cycle the Temperature Display Window indicates dF COMPRESSOR SOFT START 1 Startup Power ON min 120 sec i Compressor ON Condenser Fan Motor OFF ON Interior Fan Motor OFF Cabinet Temp Display OFF When the power supply is turned on the Temperature Display Window shows the cabinet temperature but the Compressor and Condenser Fan Motor start up with a 3 minute delay Then the Interior Fan Motor starts up 20 seconds later This delay is intended to minimize the difference between the high side and low side pressures and to reduce the load on the Compressor so that it can start easily in case of a short especially instantaneous power failure 2 Normal Control Interior Thermistor Ser Font ON i i i Compressor 5 Condenser Fan Motor OFF When the C
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20. The Thermistor and Pressure Switch leads have a thin coating and potentially breakable Do not tension the leads The connectors must not be subjected to tension to prevent disconnection or breakage After servicing the Controller Board check for disconnected connectors The Thermistor is provided with single wire leads Do not bend or stretch them about 400 mm from the end and at lead connections Do not pinch or weigh down the Thermistor and Thermistor leads The coatings may be broken resulting in a short circuit Keep the Thermistor and Relay Box wires at least 30 mm away from the high voltage 100V AC or more wires 3 After replacing the Controller Board make the following settings The replacement Controller Boards are shipped without model setting To prevent malfunction and failure be sure to finish model setting before use according to 11 6 e MODEL SETTING AT CONTROLLER BOARD REPLACEMENT Some buttons on the replacement Controller Boards may be unnecessary for some models Proper model setting will disable those buttons 37 6 CHECKING THERMISTOR 1 2 3 4 Remove the Thermistor s intermediate connector from the Controller Board Put and water in a glass or other container to make 0 C water Immerse the Thermistor bulb in the water for 5 minutes at the center of the container Use the range of the tester to measure the resistance between the Thermistors If the measu
21. place the datas 2 2 off replace osition to fit hooks ift up removed Air Duct on a shelf 4 Push backward E To replace the Air Duct first insert the Drain Pipe into the drain outlet at the rear of the unit gt a For the freezer compartment move the C C Gasket backward before inserting the Drain 4 3 2 Pipe e Position the Air Duct to fit the six hooks on both sides Keep the Air Duct slightly forward for smooth positioning 6 Lift up the Air Duct and push it backward to fit in 7 Tighten the screws at the front of the Air Duct Note Be careful not to catch the Interior Fan Motor leads in the Air Duct 45 b INTERIOR FAN MOTOR 1 Unplug the unit Interior Fan Motor 2 Disconnect the Interior Fan Motor connector blue beside the Refrigeration Unit 2 Unscrew the Refrigeration Unit Slightly lift up the Refrigeration Unit and put the Interior Fan Motor leads inside the cabinet 2 Remove the Air Duct 2 Remove the Interior Fan Motor from the Air Duct e To replace the removed parts reverse the above procedure Cover the Interior Fan Motor leads with the Insulation Tube Fan Cover as a cushion through the hole in the Refrigeration Unit Note To prevent the leads from being caught between the Fan Blades fix the leads with the Wire Retainer inside the Air Duct before fitting the Air Duct 6 DOOR PARTS DOOR HANDLE The Door Handle i
22. 0 uedo JOjSIUJJ8U JOlJ9 U SI 0 51 uonipuoo jueuoduo D uonduoseq 10413 Aja INOHd33 INOHd33 JO SIWJSUY 0 51 soJjeq 5 Jesuepuog 0451 01 1 3 The error cords are indicated in the following order of priority gt Ed gt E5 gt E8 gt E9 gt E4 gt 7 gt gt E1 gt E2 Set Point Error Detection R 134a R 404A E4 High pressure Clog Thermistor Clog Thermistor Immediately at 78 Immediately at 73 5 min above 70 E7 Clog Clog Thermistor Clog Thermistor 5 min above 56 5 min above 56 32 2 FLOWCHART PROBLEM PROBLEM POSSIBLE CAUSE numbers corresponding to 3 COMPONENTS No refrigeration Compressor will not start No temp indication Breaker OFF Power Supply Board Controller Board 12V DC output Controller Board Open circuit connector unplugged EA Ed error indication Controller Board Defective No error indication amp Interior Thermistor Abnormal resistance bad contact Clog Thermistor Abnormal resistance bad contact amp Pressure Switch Short circuit defective Relay Output Compressor W
23. 062 96544 1945 N3M0d 3 80 1 TAJON 1 nipziusoH 59 ovl 69 M3I3AOWHS3HL IVLIDIQ 058 05 os AXIM HLAVA TVLNANLINO9 3015110 SNOT Q302 BIMO TECHNICAL INFORMATION 1 WIRING DIAGRAM a HRE 70B 44097201 46908806 46754901 TRANSFORMER 230VA 00155 01 42790202 40613208 45039101 45080301 45039801 FAN MOTOR CONDENSER P00156 01 469067G01 46909401 THERMOSTAT 20059801 Hi DRAIN TANK HEATER P00153 02 H CORD HEATER OUTER FRAMD 7 TM 00184 01 FI FUSE DRAIN TANK 04 13326202 EVAPORATER CONDENSER DRYER HEAT EXCHANGER CAPILLARY TUBE WIRE COLOR ra y PRIMARY SECONDARY THIN RELAY LAYOUT 369924L01D HRE 140B 10 X1 561 FM FM 3 TH TH3 He H3 Fl RELAY LAYOUT NAME 440972 01 469088 06 467549 01 TRANSFORMER 230VA 00155 01 427992 02 106132 08 45358001 153581 01 45635001 MOTOR CONDENSER 00156 01 189061001 469094 01 THERMOSTAT P00598 01 DRAIN TANK HEATER 00153 02 CORD HEATER OUTER FRAMD CORD HEATER OUTER FRAMD TIMER 0018401 FUSE DRAIN TANK 542 133262 02 WIRE COLOR CODE Br BROWN LBu LIGHT BLUE P
24. 12V DC Controller Board output K1 Connector 1 2 Interior Fan Motor See wiring label Replace Frame Heater voltage K2 Connector No 1 3 Heater ON OV Heater OFF 115V Switches every 2 min disconnected Connector dusty dirty 7 segment display partially totally off Electronic parts defective burnt out Ambient Temp Sensor damaged Frame Heater will be continuously energized Relay Relay Board output 12V DC Fast on terminal pin disconnected Connector dusty dirty Open circuit Output to each load Check with wiring diagram timing chart Abnormal noise Location holder in front of Evaporator Disconnected replaced with Defrost Thermistor etc Correct Incorrect temp indication Immerse in ice water to check resistance 5 6 5kO Replace if necessary Short circuit temp displayed as Clean dry connector Replace Open circuit temp displayed as 60 Abnormal resistance Replace Immerse in ice water to check resistance 150 180 Replace if necessary Short circuit Clean dry connector Replace Open circuit Location plug in from Evaporator front Disconnected replaced with Interior Thermistor etc Replace Correct Abnormal resistance Immerse in ice water to check resistance 5 6 5 Replace if necessary Short circuit Clean dry connector Replace Open circuit Terminal splashed with w
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26. 54310G01 for connection only Dimensions W280 x D255 x H16 t 0 8 mm Drain Outlet 16 mm OD x 14 mm ID Drain Hose 16 mm DIA Capacity 1 0L D 4 Temm 16 mm OD 8 OPTIONAL PARTS 255 mm a HINGE KIT The Door Hinges for HRE 70B and HFE 70B can be moved to the other side of the Door by using the following Hinge Kit Please note that these Door Hinges are not interchangeable with those for HRE 70A and HFE 70A Hinge Kit R Door Hinge R Lo 363989601 1 pc Door Hinge R Up 339968601 1 pc Hinge Collar Hinge 339948 01 2 pcs Hinge Kit L Door Hinge L Lo 363991601 1 48 Door Hinge L Up 339971601 1 Hinge Collar Hinge 339948 01 2 pcs b GASTRONOME PAN RAIL Rail R 369511M01 Rail L 369512M01 49
27. EATER OUTER FRAME E CORD HEATER OUTER FRAMD 2105 214904 DEFROST HEATER _ POO150 01 eu CoRD HEATER OUCD P00146 01 CORD HEATER GAN COVER 00148 01 433262 02 463180 06 EVAPORATER CONDENSER DRYER HEAT EXCHANGER WIRE COLOR CAPILLARY TUBE rq LJ 79 Br BROWN SECONDARY HIN LBu LIGHT BLUE Bu BE RELAY LAYOUT 369927L01C 12 HRE 70B F Br 1 220V 240V 50Hz 1 SB AW 12 CM 11 10 11 13 R gt Gr Y SCH p 0 Xn H3 NN X23 9 X31 ae Hi yyy 220v Bu 230v S 0 Bk Bk UVT W pi o6 g tes K3 x5 Bk Mos d 19 R 1 ae 1 Gr Ki K 7777 m 02 5 Ps R IG1 Y CORD NAME SB SAFTY BREAKER 10A 44097201 ONTROLER BOARD 469088 01 POWER SUPPLY BOED 46154901 TRANSFORMER 230VA P00155 01 RELAY 12199202 X RELAY 406132 09 RELAY 40613208 COMPRESSOR 450891 0 STARTER 4508930 SG
28. Fan Motor 8 Remove the Fan Motor from the Bracket 9 To replace the removed parts reverse the above procedure Note After replacement check for abnormal noise or vibration noise by trial run e DEFROST HEATER AND THERMAL FUSE HRE F Heater defrost HFE 1 Unplug the unit Thermal Fuse Bracket 2 Disconnect the Defrost Heater at the back of i the Refrigeration Unit The Defrost Heater and Thermal Fuse are connected in series and Evaporator interchangeable without any operational problems 3 Remove the putty from the wire hole in the Defrost Heater Refrigeration Unit Base and put the connector through the hole 4 Remove the Air Duct See 5 AIR DUCT 5 Remove the Supports at both ends of the Evaporator bottom by loosening the screws at the front and unhooking the backside 6 Remove the Defrost Heater from the Evaporator by pulling each U bend from the front to the back 43 7 Unscrew and remove the Thermal Fuse from the Evaporator and Bracket 8 Pull out the wire through the hole in the Refrigeration Unit Base 9 To replace the removed parts reverse the above procedure Note Locate the Defrost Heater in the same position as before Fit the first front line into the first slot channel and position the rest according to the U bend dimensions Front AE OLO Fit into the first slot channel 4 EVA
29. Motor Side HFE Defrost Thermistor Fan Motor Side 2 RELAY BOX a POWER SUPPLY BOARD 1 2 3 5 Unplug the unit Top View of Relay Box Disconnect the connectors Power Supply Board Loosen and remove the two Board Supports at the back Loosen the three screws from outside the Relay Box Board Support and remove the Power Supply Board Do not remove the screws from inside the Relay Box or the parts may fall off the Power Supply Board Screw M4 x 8 To replace the removed parts reverse the above procedure Note 1 The Power Supply Board is connected to a commercial power supply Be sure to disconnect the power supply before servicing 2 Some parts may have become hot just after operation Handle with care 3 REFRIGERATION CIRCUIT a COMPRESSOR 1 2 4 5 7 8 Unplug the unit Remove the Front Panel Remove the Top Panel Remove the Protector Cover enclosing the electrical parts Remove the Overload Relay Starting Relay and other parts Recover the refrigerant from the low side Access Valve Disconnect the discharge and suction pipes by using brazing equipment Remove the hexagon bolts securing the Compressor To replace the removed parts reverse the above procedure 41 b CONDENSER AND DRIER 1 Unplug the unit 2 Remove the Front Panel Recover the refrigerant from the low side Access V
30. PORATION TANK 1 Unplug the unit 2 Unscrew and remove the Rear Panel 3 Unscrew the upper part of the Evaporation Tank Cover and lift off the Cover a DRAIN TANK HEATER 1 Unscrew and remove the Drain Tank Duct 2 Unscrew the Drain Tank Flange securing the Drain Tank Heater 3 Cut the Drain Tank Heater leads at their connection em Lift the Drain Tank Heater off the Drain Tank 2 Lift off the Drain Tank Heater together with the Heater Bush from the Drain Tank Flange 6 Remove the Heater Bush from the Drain Tank Heater 7 To replace the removed parts reverse the above procedure 44 THERMOSTAT 1 Unscrew the Thermostat attached to the Drain Tank bottom 2 Cut the Thermostat leads at their connection 3 To replace the removed parts reverse the above procedure THERMAL FUSE 1 Unscrew the Fuse Holder at the Drain Tank bottom and remove the Thermal Fuse 2 Cut the Thermal Fuse leads at their connection 3 To replace the removed parts reverse the above procedure 5 AIR DUCT a AIR DUCT Left Side View of Air Duct 1 Remove the two or three screws at the front of Hook the Air Duct 2 Hold both sides of the Air Duct and pull it forward The Duct in the freezer Screw compartment is provided with a Gasket in the Drain Pipe and must be pulled hard to remove 3 prevent tension on the wires
31. R RED ACK o Gr Y YELLW WIRE COLOR rq I PRIMARY SECONDARY THIN 369925L01D 70 CODE NAME SB __ SAFTY BREAKER 10 44097201 _ CONTROLER BOARD 46908801 POWER SUPPLY BORD 467549 01 TR TRANSFORMER 230VA POO155 01 X relay 491999 02 Xr rear 40613209 43017305 RLAY O O 20016401 Xs relay 40613208 __ 4827801 SR STARTER 48560701 501 START CAPACITOR 456350 01 MOTOR CONDENSER P00156 01 FM2 FAN MOTOR INTERIOR 169067001 555 TH 46909401 me TH TH _ 70059801 n 00153 02 CORD HEATER OUTER FRAMD DEFROST HEATER _ PO0149 01 CORD HEATER DUCD 0014501 CORD HEATER FAN COVER 00147 01 FUSE DRAIN TANK 940 43326202 PRESSURE SWITCH 463180606 ate TK1024300 MER WIRE COLOR CODE a PRIMARY SECONDARY THIN W WHITE INK ED Bk LACK RANGE Bu BLUE RELAY LAYOUT 3699261 01 2409 11 4 140 LBu 1 220V 240V 50Hz CODE NAME SB 440972 01 469088 01 467549 01 TRANSFORMER 230VA 00155 01 Xi 427992 02 106132 09 43017305 Xi RELAY 00164 01 Xs 106132 08 CM1 466891 01 81 467040 01 FAN MOTOR CONDENSER P00156 01 FM 355 469067G01 46909401 THERMOSTAT 20059 01 DRAIN TANK HEATER 0015302 CORD H
32. TION TANK eo ene ee sn enn nnn ne nn nnne 44 a DRAIN TANK HEATER 44 b THERMOSTAT 45 c THERMAL FUSE 45 AIR 45 a AIR DUCT 45 b INTERIOR FAN MOTOR 46 DOOR PARTS eenei a eea 46 al DOOR HANDLE 46 b HINGE SPACER 47 c LIFT HINGE 47 d DOOR GASKET 47 CONDENSER CLEANING PAN 48 OPTIONAL PARTS 48 a HINGE KIT 2 cecus cnt aqu 48 b GASTRONOME PAN cn ccn ln nenne 49 GENERAL INFORMATION 1 SAFETY INSTRUCTIONS The following instructions contain important safety precautions and should be strictly obs
33. alve 4 Unscrew the Condenser O1 lt Unscrew the Drier 6 Disconnect the Condenser from the upper inlet pipe connection using brazing equipment 7 Remove the Condenser and from the Refrigeration Unit Base disconnect them using brazing equipment 8 To replace the removed parts reverse the above procedure Note The Capillary Tube is directly brazed to the Drier To prevent brazing material from clogging be sure to insert the Capillary Tube securely into the point of Stopper before brazing c EVAPORATOR 1 Unplug the unit 2 Remove the Front Panel 3 Recover the refrigerant from the low side Access Valve 4 Remove the Insulation Hoses on the Refrigeration Unit Base Disconnect the Evaporator using brazing equipment 5 Remove the Air Duct 6 Disconnect the Defrost Heater wires e DEFROST HEATER AND THERMAL FUSE 7 Unscrew and remove the Evaporator 8 To replace the removed parts reverse the above procedure 42 d CONDENSER FAN MOTOR Bracket 1 Unplug the unit 2 Remove the Front Panel 3 Remove the Top Panel 4 Disconnect the Condenser Fan Motor Fan Motor 5 Remove the two screws securing the Bracket on the Refrigeration Unit Base DE Pull up the Fan Motor together with the Bracket 7 Loosen the nut securing Fan Motor Shaft and remove the
34. at the circuit is completely evacuated The refrigerant may produce a poisonous gas when coming in contact with an open flame 5 Do not braze in an enclosed room to prevent carbon monoxide poisoning 6 In case of a refrigerant leak locate and repair the leaking part completely before recharging the refrigerant and checking for further leaks If the leaking part cannot be located be sure to check again for further leaks after recharging the refrigerant Leaked refrigerant may produce a poisonous gas when coming in contact with an open flame of a gas cooking stove or a fan heater 7 Before servicing check the surface temperature of the refrigeration circuit to prevent a burn 5 Keep the following in mind when making electrical connections 1 Check for proper earth connections and repair if necessary to prevent electric shocks 2 Always use service parts intended for the applicable model for replacement of defective parts Use proper tools to secure the wiring Otherwise abnormal operation or trouble may occur and cause electric leaks or fire 3 Check for proper part installations wiring conditions and soldered or solderless terminal connections to avoid fire heat or electric shocks 4 Be sure to replace damaged or deteriorated power cords and lead wires to prevent fire heat or electric shocks 5 Cut off lead wires must be bound using closed end connectors or the like with their closed ends up to avoid entrance o
35. ater Replace Dry and replace if necessary Terminal dusty dirty Remove Conductivity between contacts Resistance between terminals Compressor Winding Resistance Primary Secondary FR8 5G 8 9 12 0 SC18G 3 7 14 1 SC12CL 5 0 13 7 SC18CL 3 7 14 1 Replace if conductive Insulation resistance 1 or more at 500V Replace Abnormal noise Replace Insufficient compression discharge temp too low 35 Replace if no gas leaks REMEDY 9 Compressor Electrical part defective constant speed compressor only Run Start Capacitor ruptured deformed Capacitor defective Check resistance between terminals Gradually reduces No problem 00 from start Defective Starter defective Loose terminal no conductivity damaged Overload Relay defective Loose terminal no conductivity damaged w 0 Sheath Heater Open circuit Insulation resistance 1 or more at 500V Coil circuit open Replace Conductivity Replace if not conductive 9 Condenser Fan Motor Open circuit Locked not rotating with voltage Internal fuse blown coil not conductive Abnormal noise 9 Defrost Heater Open circuit Conductivity Insulation resistance 1 or more at 500V Thermal Fuse Conductivity Replace Relay contact fused Replace Relay Relay Board Refrigeration Circuit Operate constantly at 55Hz in operation setting mode Replac
36. d function code FO FF appears 3 Press the Set Point Button to indicate the current setting except F6 4 Hold down the Set Point Button and use the Temperature Control Buttons to indicate the desired value Adjust to the default setting when the correct value is not known 5 Release the Set Point Button 6 Repeat step 1 or wait for more than 1 minute The Temperature Display Window will show the cabinet temperature 27 No automatic defrost cycle Every 3 hrs Every 6 hrs default setting Every 8 hrs Every 12 hrs 24 Every 24 hrs Long defrost cycle intervals may increase frosting and cause inadequate cooling 1 Cabinet Temp Too High 0 Immediate occurrence no error record Occurrence Timing For remote alarm checking Return to original setting after checking After 1 hr After 2 hrs default setting After 3 hrs F4 2 Cabinet Temp Too Low Immediate occurrence no error record Occurrence Timing For remote alarm checking Return to original setting after checking 1 After 1 hr default setting F6 Checking Deleting Error 1 Press Reset Button to indicate error records E1 Records EE every 0 5 sec for 1 sec each max 8 records per compartment 2 Press Reset Button for more than 5 sec to delete error records 3 Press Manual Defrost Button to indicate Buzzer Output External AL Buzzer output for all errors default setting Output 1 2 Buzzer output for E1 and E2 onl Defrost Backup T
37. djustment 87 5 Level 6 Constantly ON 75 12 5 0 93 24 50 121 193 264 336 407 479 550 621 693 764 33 6 The heater control reduces the power consumption and the less heat invasion into the cabinet improves the refrigeration unit operating efficiency resulting in significant energy saving effects b INTERIOR DC FAN MOTOR The highly efficient DC brushless motor reduces the power consumption of the motor body from 21 W to 4 W with the same output Also the lower heating value prevents cabinet temperature rise and improves the refrigeration unit operating efficiency resulting in energy saving effects c CONTROLLER BOARD To save energy HRE series stops energizing the Frame Heater for a maximum of 15 minutes during a defrost cycle HFE series has an energizing control d REFRIGERATION UNIT Provided with the best matched Capillary Tubes for refrigerant control Plastic Unit Base and Unit Frame in shape to minimize heat input output Corrosion resistant aluminum Evaporator with boehmite treated and clear coated surfaces 17 4 ELECTRONIC CONTROLS a SET POINT TEMPERATURE mean temperature between compressor ON and OFF temperatures Set Point Temperature Off cycle defrost HRE series to 16 C Heater defrost HRE F series 6 to 12 C Heater defrost HFE series 25 to 7 C Interior Thermistor Temperature Time ON i Compressor OFF b CABINET TEMPERATURE DIFFERENTIAL
38. e Capillary Expansion Valve Interior Fan Motor Open circuit Locked not rotating with voltage Abnormal noise Clogged Discharge pressure High Replace Drier at same time Suction pressure Low vacuum Refrigerant Leak Discharge pressure Low Locate leakage and replace Suction pressure High Replace Drier at same time 36 4 CONTROLLER BOARD a SERVICING CONTROLLER BOARD 1 If receiving a service call ask the user to turn off the power supply and turn it back on after 30 seconds while watching the unit This will reset the controller and in some cases normal operation will resume 2 Keep the following in mind when servicing the Controller Board Check that the unit has been earthed properly If not the Controller Board will not work properly To get static free always touch the cabinet earth before servicing Electrostatic discharge will cause severe damage to the Controller Board Also keep it away from vinyl plastic or other electrostatically charged products Do not touch the reverse side of the Controller Board and tiny electronic devices on it The Controller Board and Thermistor can be replaced separately Handle the Controller Board by the edges only Do not push the electric parts and wires Do not drop the Controller Board on the floor To protect the pattern from damage place the Controller Board on a flat surface
39. erved The terms used here are defined as follows WARNING There is a possibility of death or serious injury to the service person and a third party or the user due to improper service operations or defects in serviced products CAUTION There is a possibility of injury to the service person and a third party or the user or damage to their property due to improper service operations or defects in serviced products The term damage to their property here refers to extensive damage to household effects houses and pets WARNING Always ask the user to keep children away from the work area They may be injured by tools or disassembled products When there is no need to energize the unit during disassembly or cleaning be sure to unplug the unit or disconnect the main power supply before servicing the unit to prevent electric shocks If the unit must be energized for inspection of the electric circuit use rubber gloves to avoid contact with any live parts resulting in electric shocks Keep the following in mind when servicing the refrigeration circuit 1 Be sure to recover the refrigerant Do not discharge it into the atmosphere It will affect the environment 2 Check for any flames in the vicinity and ensure good ventilation 3 If the refrigerant should leak in servicing immediately put out any fire used in the vicinity 4 When unbrazing the refrigeration circuit connections check th
40. f moisture that could lead to electric leaks or fire 6 After servicing always use a megohmmeter 500V DC to check for the insulation resistance of at least 1 megohm between the live part attachment plug and the dead metal part earth terminal 7 Do not service the electrical parts with wet hands to prevent electric shocks 8 The capacitors used for the compressor and other components may be under high voltage and should be discharged properly before servicing CAUTION 1 After servicing follow the instructions below 1 Always check the unit for proper operation before finishing services 2 Be sure to reassemble the parts completely Loose assembly of such parts as control box cover may cause entrance of vermins resulting in a short circuit between terminals and possible ignition 2 DIMENSIONS SPECIFICATIONS HRE 70B 4 JO ey Ul suonipuoo piwny peuedo Joop ey upd 742 1uaiquup 3p peyopes s uonosfeJ 2 suonoeuuoo PUD 499049 40 peuinbeJ osjo 5 uonpi p1sur Jeeu aui 40 2204 WWOL pepi oud S DNUDLU UONDJJDJSUI PUD uononujsul eu Suo
41. he Temperature Display Window shows from FO to FF before showing F6 Otherwise the basic settings will change and may cause malfunction In case of misoperation see the list in d ADJUSTING OPERATION SETTINGS to restore the default settings 2 Repeated errors are stored as one record For example errors in the order of E7 E7 E7 E4 E7 are recorded as E7 E4 E7 d ADJUSTING OPERATION SETTINGS The following settings are adjustable Set Point Temperature Frame Heater Duty Ratio Level Soft Start Cancelation Automatic Defrost Cycle Interval E1 Cabinet Temperature Too High Occurrence Timing E2 Cabinet Temperature Too Low Occurrence Timing Buzzer Output External Output Defrost Backup Timer SASGRSRS Except 1 and 2 the default settings are optimal to meet the specifications To prevent unexpected malfunction do not adjust them unless necessary 1 Set Point Temperature Hold down the Set Point Button use the Temperature Control Buttons to adjust to the desired set point temperature and release the Set Point Button 2 Frame Heater Duty Ratio Level If condensation occurs on the Front Frame Press the Frame Heater Button for 3 seconds to illuminate the lamp on the button the duty ratio is raised by 1 level 26 To freely select the Frame Heater duty ratio level from 1 to 6 1 Hold down the Frame Heater Button and press the Set Point Button The Temperature Disp
42. i START CAPACITOR 1508980 FM FAN MOTOR CONDENSER P00156 0 FM FAN MOTOR INTERIOR 46906160 THERMISTOR INTER 469035 0 TH THERMISTOR PROTECTION THERMOSTAT F00538 0 Hi DRAIN TANK HEATER F00153 02 Ha CORD HEATER OUTER FRAME H3 DEFROST HEATER 00149 F 1 2 FUSE DRAIN 940 1433256202 wW EVAPORATER 00155 01 CONDENSER F00165 01 DRYER F00007 01 HEAT EXCHANGER 252192601 CAPILLARY TUBE 161224250 WIRE COLOR ff WIRE COLOR CODE Br BROWN PRIMARY SECONDARY THIN LBu LIGHT BLUE W WHITE PINK 5 R RED Bk BLACK 0 O ORANGE Bu BLUE X GT GREE Y RELAY LAYOUT 312404L014A 13 f HRE 140B F Br LBu Gr Y CORD NAME Ib 220 240 50 2 SB BREAKER 10A 440912 01 CONTROLER BOARD 46908301 POWER SUPPLY BORD 16754901 cM TRANSFORMER 230VA 00155 01 SB z RELAY 421992 02 NE E X1 RELAY 406132 09 Br R
43. imer duration No backup occurrence until forced de energization of 0 4 24 min Defrost Heater 0 7 40 min 1 60 min default setting 1 3 80 min 1 7 100 min 2 120 min Long duration until backup or no backup may cause fuse to blow when Defrost Heater is energized for a long time e MODEL SETTING AT CONTROLLER BOARD REPLACEMENT The replacement Controller Boards are shipped without model setting To prevent malfunction and inadequate cooling be sure to finish model setting before use Some buttons on the replacement Controller Boards may be unnecessary for some models Proper model setting will disable those buttons 28 set the mode setting number 1 Turn off the power supply 2 Hold down the two Temperature Control Buttons and turn on the power supply The Temperature Display Window will show 01 Note This is not the preset model number 3 Use the Temperature Control Buttons to indicate the desired model number Note Do not select 00 or further settings will be made unavailable When 00 15 selected by mistake turn off the power supply and go back to step 2 4 Press the Reset Button for more than 3 seconds The Temperature Display Window will flash rc 5 Press the Reset Button again for more than 3 seconds The Temperature Display Window will flash oF 6 Turn off the power supply To check the model setting number 1 Hold down the Set Point Button and t
44. inding open electrical part defective Compressor starts and stops immediately within 3 min E4 error indication record high pressure Ambient temp too high Condensing capacity insufficient Heat source ventilation Air Filter Clogged Condenser Fan Motor Locked open circuit Relay Condenser Fan Motor output Clog Thermistor Abnormal resistance bad contact amp Pressure Switch Defective No error indication See E4 error indication record above amp Interior Thermistor Location Compressor Locked etc Compressor runs with no refrigeration E7 error indication record high condensing temp Ambient temp too high Condensing capacity insufficient Heat source ventilation Air Filter Clogged Condenser Fan Motor Locked open circuit Relay Condenser Fan Motor output E8 error indication record Defrost Thermistor Abnormal resistance bad contact E3 error indication record frosted evaporator Abnormal resistance Defrost Heater Open circuit defective D Defrost Thermistor No error indication 33 Relay Defrost Heater output Thermal Fuse Blown Internal load too large Door gap nterior Thermistor Location
45. ion Pan__ _____ _____ Thermostat 1 Frame Heater Control Intermittent energization by difference between ambient and cabinet temperatures Energization time has 8 patterns duty ratio 12 5 100 Duty ratio is updated every 2 min except previous ratio is maintained during defrost cycle 2 Standby at Startup Only temperature indication is available for 3 min not a sign of failure 3 Interior Fan Motor Delay at Startup Interior Fan Motor and Frame Heater will not operate for 20 sec after Compressor starts Interior Fan Motor OFF after End of Control Interior Fan Motor will not operate for 2 min 4 Evaporation Signal HRE series Cam Timer for 7 min every 8 hrs HRE F series HFE series Defrost start signal every 6 hrs 22 b DEFROST HRE series Off cycle defrost gt lt 20 sec OFF Update 1 Maintain duty ratio gt 15 duty Update duty ratio gt Frame Heater Compressor _ 7777 mm mm Condenser Fan Motor Interior Fan Motor Detects end of cycle 3 C Defrost Interior Thermistor Temp Defrost i until Thermistor detects Temp Display Ss gt lt i Temp and alternately series 2 3 20 sec OFF duty ratio gt Maintain previous duty ratio gt gt Update duty Frame Heater 01071 Compressor Condenser
46. lay Window will show 2 2 Hold down the Set Point Button and use the Temperature Control Buttons to indicate 1 6 The higher levels at the same ambient and cabinet temperatures mean the higher duty ratios level 6 is constantly ON To keep the Frame Heater OFF HRE series only 1 Hold down the Frame Heater Button and press the Set Point Button The Temperature Display Window will show 2 2 Hold down the Set Point Button use the Temperature Control Button to indicate 0 and release the Set Point Button 3 Soft Start Cancelation for immediate startup of Compressor Hold down the Set Point Button and turn on the power supply The Compressor will start after 10 seconds This operation is available only once when the power supply is turned on Note If the power supply is turned off while the Compressor is running and immediately turned back on to cancel the soft start the high side and low side pressures cannot be equalized often resulting in Compressor starting failure Do not cancel the soft start for at least 2 5 minutes after the power supply is turned off 4 9 These adjustments are available by the following button operation including the error records checking and deleting procedures 1 Press the Reset Button and Set Point Button at the same time for 5 seconds Reset Button first The Temperature Display Window will show FO 2 Press the Temperature Control Buttons until the desire
47. mbient temperature the ratio between ON time and OFF time is determined by the difference between the ambient temperature measured by the Temperature Sensor built in the Controller Board and the cabinet temperature measured by the Interior Thermistor This duty ratio has eight patterns and is updated every two minutes The duty ratios are sorted into seven levels HRE series or six levels HFE series depending on the difference between the ambient and cabinet temperatures The higher levels at the same ambient and cabinet temperatures mean the higher duty ratios The unit is factory adjusted to level 2 The user is allowed to choose between levels 2 and 3 only and service persons between levels 0 6 HRE series or 1 6 series Reference Level 2 No condensation at ambient temperature 35 C relative humidity 70 Level 3 No condensation at ambient temperature 35 C relative humidity 80 Ambient temp cabinet temp 25 30 90 5 10 14 19 23 30 10 14 19 24 16 23 30 37 50 60 60 14 19 24 28 23 30 37 44 L 90 30 24 28 33 37 37 44 52 59 00 120 0 __ 33 41 or more 52 more 66 or more Relations between duty ratio and ambient and cabinet temperature differences HRE series duty ratio Level 0 Constantly OFF Level 2 Factory adjustment Level 6 Constantly ON 16 series duty ratio Level 2 Factory a
48. nit will start a manual defrost cycle The unit will start repeating automatic defrost cycles 6 hours after the Manual Defrost Button is pressed To cancel the manual defrost cycle turn off the power supply Wait for at least 30 seconds before turning the power back on j FRAME HEATER SETTING The duty ratio of the Frame Heater is controlled The unit is factory adjusted to the duty ratio level 2 with the lamp on the Frame Heater Button off If condensation occurs at the installation site press the Frame Heater Button for more than 3 seconds to change the duty ratio level from 2 to 3 Then the lamp on the Frame Heater Button will illuminate To de energize the Frame Heater series only see 6 BUTTON OPERATION 20 CANCELING SOFT START To cancel the soft start 3 minute delay turn on the power supply while pressing the Set Point Button The Compressor and Condenser Fan Motor will start at the same time after 10 seconds When the soft start is cancelled the illuminated seven segment LED on the Temperature Display Window changes to the model setting number To resume the cabinet temperature display press the Set Point Button again or wait for 30 seconds Note If the power supply is turned off while the Compressor is running and immediately turned back on to cancel the soft start the high side and low side pressures cannot be equalized often resulting in Compressor starting failure Do not cancel the soft star
49. noeuuoo PUD suonoeuuoo Addins uonooo uo suononugsur 3onpoJd eu 0 313 5 13315 SSTINIVLS LP 53140553999 vapoop 39vxovd 6712 55019 1H9I3M ubi WWOOL 24244841 H3ISv2 MOGL 12845 555141515 Md MO 490 29 044 AOPOW BAM 43103 4osseoo4doJO A TOYINOD 1504330 3 91940 Woy uonporpu dure 0 1OHINOD 33fivmatat 5091 0 1 1 9391333 deep ybiy s qn 9 WOIVIOdVAA Ag 1004 ub doop smou z ybiy 520 Q1 ed 900 pub HISNIONOD MOGI NOSSdHdWOO 212 9 340 NALSAS 1508431 XM UORDINJJK NIISAS NOLIIGOREN eupujean4jod NOLLVINSNI 9915 ssej urb1s woog 109419315 peziubAp9 12335 558 06 YOIMALXA 9 9 SNOISNINI CH WWOPOT x M UWOOZ 315170 1169 ANNI 381344 9JIM UID YPM jpyusuuo 0309 YIMOd AGES
50. ompressor turns off during normal control it has a mandatory 2 5 minute delay before startup For example if the Compressor turns off by its Thermistor and the Door is opened immediately after causing the cabinet temperature to immediately exceed the restart temperature the Compressor will still not start until 2 5 minutes have passed since its shutdown g HIGH PRESSURE SWITCH Set Point Pressure Switch ON Compressor Min 6 min 6 min Condenser Fan Motor 19 All models are provided with High Pressure Sensor to monitor the condensing temperature If the high side pressure rises to operate the High Pressure Sensor the Compressor will not restart for at least 6 minutes to protect itself HFE series is also equipped with a backup High Pressure Switch If the Condensing Temperature Thermistor becomes defective the High Pressure Switch operates to stop and protect the Compressor h CHECKING AND ADJUSTING SET POINT TEMPERATURE Press the Set Point Button to display the set point temperature on the Temperature Display Window To change the set point temperature hold down the Set Point Button and press the Temperature Control Button Frame Heater Button Reset Button gt Manual Defrost Button Set Point Button t bp m Temperature Control Button 9 W Temperature Display Window i MANUAL DEFROST When the Manual Defrost Button is pressed for more than 5 seconds the u
51. or Abnormal resistance Controller Board Defective Compressor stops No error indication Cold air outlet loaded Abnormal noise Cold air inlet blocked Ambient temp too low Compressor Condenser Fan Motor interior Fan Motor Condensation Frame Heater is not energized No error indication Duty ratio setting improper Readjust Intermittent energizing control is working Monitor for at least 2 min Frame Heater is energized Power Supply Board Frame Heater 100V AC output Controller Board Defective Duty ratio setting too low Raise duty ratio level Water leak from rear Drain water is not evaporated Sheath Heater is not energized Cam Timer HRE Open circuit defective 34 Thermostat Contact Relay Output Thermal Fuse Conductivity Sheath Heater Open circuit defective 3 COMPONENTS Safety Breaker Safety Breaker trips Locate earth leakage short circuit Power Supply Board Open circuit Correct or replace in Relay Box Controller Board Clog Thermistor Defrost Thermistor Pressure Switch Interior Thermistor Compressor Input output Controller Board Interior Fan Motor Input 115V AC Output
52. re with the following points in mind replace the Control Box be sure to hook the two tabs on the grips Plug in the connectors until they lock in place Keep the wires inside the Rear Cover e Check that the Operation Panel is securely mounted 4 After replacing the Controller Board be sure to make model setting Otherwise the unit will not operate properly and the Compressor may be damaged THERMISTOR 1 Remove the Air Duct inside the cabinet See 5 AIR DUCT 2 Remove the Interior Thermistor Bulb on the ceiling in front of the Evaporator by unhooking the two tabs securing the Thermistor Holder 3 Remove the Defrost Thermistor Bulb inside the Evaporator Fins by pinching off the Thermistor Holder 4 Pull out the Thermistors through the hole in the Refrigeration Unit Base careful 39 not to press hard on the bulbs and leads 5 Remove the Clog Thermistor Bulb by removing the Thermistor Holder located at the center or outlet of Condenser 6 Remove the Control Box and disconnect the Thermistor connectors Note 1 To replace the removed parts reverse the above procedure 2 To prevent the Evaporator from freezing use the Bush Thermistor to securely plug the wiring hole in the Refrigeration Unit Base Interior Thermistor Bulb Location Interior Thermistor Defrost Thermistor Bulb Location Defrost Thermistor HRE Off cycle defrost Fan
53. red resistance is not within Interior Defrost Thermistor 5 6 5 standard 6 Clog Thermistor 150 180 standard 162 replace the Thermistor see the T R curve below T R Curve Interior Defrost Thermistor R 6x Esp 3200 1 1 The graph shows reference values only 273 154 T E 273 15 may differ from actual values R kQ 60 50 40 30 NC 20 10 0 50 40 30 20 10 0 10 20 30 Temperature T R Curve Clog Thermistor 400 300 200 100 Temperature 38 IV REMOVAL AND REPLACEMENT OF COMPONENTS 1 CONTROLLER BOARD AND THERMISTOR Cover REMOVAL OF CONTROL BOX 1 Lift the Cover off the back of the Control Box Tab 2 Remove the screw rear left securing the Control Box and Screw remove the Control Box 3 Disconnect the connectors from the Control Box by pinching both ends of the connectors with thumb and middle finger and unlocking the connectors with forefinger 4 Remove the four screws of the Control Box and separate it into the Operation Panel side and box side 5 Remove the two screws from the Operation Panel side and remove the Controller Board b REPLACEMENT OF CONTROL BOX 1 Handle the Controller Board with care according to 4 SERVICING CONTROLLER BOARD 2 Replace the Controller Board in the reverse order of the removal procedu
54. rts following drain cycle 24 6 BUTTON OPERATION a OPERATION PANEL LAYOUT Frame Heater Button Reset Button 9 Manual Defrost Button Set Point Button t m Temperature Control Button 9 C Temperature Display Window b BASIC OPERATION SetPoint set point temp while depressed Constant Set Point Change set point temp Temp Control Manual Defrost _ Long 5 Start manual defrost Error Reset Short Cancel error code indication not available on some errors With more than one error press to cancel one by one Constant Frame Heater Long 3 sec Change Frame Heater level High Lamp ON raise default duty ratio by 1 level c CHECKING AND DELETING ERROR RECORDS To check error records 1 Press the Reset Button and Set Point Button at the same time for 5 seconds Reset Button first The Temperature Display Window will show FO 25 2 Press the Temperature Control Buttons until F6 appears 3 Press the Reset Button to flash the error records the order of occurrence will appear if no error is recorded 4 Press the Manual Defrost Button to return to F6 5 Repeat step 1 to indicate the cabinet temperature To delete error records 1 Follow steps 1 to 3 above 2 Press the Reset Button for 5 seconds to flash 3 Follow steps 4 to 5 above Note 1 Do not perform any other button operation until t
55. s replaceable Order the new Door Handle and two Handle Caps The Handle Caps are damaged when removed and need to be replaced together with the Door Handle Door Handle 1 Put a precision screwdriver into the notches to p remove the Handle Caps Handle Cap lt 2 Unscrew and remove the Door Handle 3 To replace the removed parts reverse the above procedure Tighten the mounting screws to a torque of 98 127 Nm cm 10 13 kgf cm Manual tightening with a screwdriver needs additional tightening 46 b HINGE SPACER For Door closing adjustment the Hinge Spacers clear colorless plastic plates may be provided between the Hinges and cabinet reinstalled in the correct position When removed the Hinge Spacers must be When the Door is replaced or the Gasket is often caught in the Door order the following parts and replace the Hinge Spacers Hinge Spacer 453746 01 No Hinge Spacer is available Order the above Hinge Spacer A and drill a 10 mm diameter hole For Upper Hinge For Lower Hinge c LIFT HINGE To ensure smooth Door closing the Hinge Shaft employs a Lift Hinge If the Hinge makes an abnormal noise or the worn out Lift Hinge hinders smooth Door closing apply White Alcom Grease white grease used for industrial icemakers If the Lift Hinge is severely worn out replace the Hinge Collar Lift Hinge on both the Door and Hinge sides Apply White Alcom Grease also when the Door i
56. s replaced in the field d DOOR GASKET To replace the Door Gasket 1 Pinch and pull out the Door Gasket from the corners 2 Push the convex of the new Door Gasket into the concave of the Door interior Insert the corners first to facilitate replacement Replacement of the Door or Door Gasket may cause a gap between the cabinet and the Gasket To correct this gap slightly heat the Gasket with a drier To avoid melting the Gasket 1 Keep the drier at least 100 mm away from the Gasket 2 Move the drier up and down to heat the entire gap 47 Gasket Gap Min 100mm ND 7 CONDENSER CLEANING The Condenser is designed to allow the Cleaning Pan at the bottom Insert the Cleaning Pan wastewater pan and connect the Drain Hose to the drain outlet Use the Cleaning Pan A for the 280 mm wide Condenser HRE 70B HRE 140B HFE 70B and connect the Cleaning Pan A and Cleaning Pan B for the 500 mm wide Condenser HFE 140B 280 mm Insert Cleaning Pan A Cover the Cleaning Pan with a waste cloth to prevent wastewater from splashing around especially the Compressor and Condenser Fan Motor The Cleaning Pan has a capacity of about 1 L and takes 1 minute to drain Do not allow a large amount of water into the Cleaning Pan The Cleaning Pan is not provided in the unit and must be ordered by the following part numbers 280 mm Cleaning Pan A 354309G01 Cleaning Pan B 3
57. t for at least 2 5 minutes after the power supply is turned off ERROR CODES In case of trouble the Temperature Display Window will alternately flash every second between one of the following error codes and the cabinet temperature See 1 ERROR CODES for further details E1 Cabinet Temperature Too High Condenser Clogged Cabinet Temperature Too Low Defrost Thermistor Defective Defrost Cycle Too Long EQ Clog Thermistor Defective E4 Abnormal High Side Pressure EEPROM Write Error Interior Thermistor Defective EEPROM Verify Error In case of error an external output 12V DC function is available for connection with a buzzer m CONTROLLER BOARD MODEL SETTING To indicate the Controller Board model setting number on the Temperature Display Window turn on the power supply while pressing the Set Point Button Note Proper model setting is required when the Controller Board is replaced See 6 BUTTON OPERATION for further details 21 5 TIMING CHART a STARTUP CONTROL HRE HFE series 2 3 3 min 20 sec Temp Display Frame Heater UU m mm mm EE Compressor Condenser pps occi Fan Motor Interior Interior Thermistor Temp Set Point Temp 1 7 Set Point Temp Set Point Temp 20 K Evaporation 4 E Signal i Evaporation Pan Heater Evaporat
58. urn on the power supply 2 The Temperature Display Window will illuminate and show the model setting number The Compressor will start 10 seconds after this button operation Model setting number 1D HRE series Off cycle defrost OD HRE F series Heater defrost 29 HFE series 29 gesel ou uong 195944 sseJd dws Puso AISS 0X p u do 9591 OU uong 19595 unu Jaddn sesu 59591 Ajjeonewoyny swa 2 00 JeseH dws jueiquuy 1044e 031009 opisul uew 00 oo peuedo 100d SdoJp youlqeo pue due jeuiqeo 1000 SjesaJ Aljeonewoiny uBiu JeseH 559 gt yeaj JojsiuuJeu ey JojsiuJeu uedo pezi amp Jeue ep S pue peziBjeue JOU9 J9 E9H J9JESH 5044 195 104 MO 9q 99S Joysiuey 6015 uonoejep 1S JU
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