HNC-BE Service Manual
Contents
1. 12 REFRIGERATION CIRCUIT 13 WIRING DIAGRAM 14 CONSTRUCTION 15 REMOVAL AND REPLACEMENT 16 SIDE COVER nn 16 0 TOP COVER nanan nnn a a 16 c FRONT GLASS 16 d SIDE FRAME 17 CENTER FRAME 17 f HOLDER EVAPORATOR PIPE 17 gl UNIT 17 9 REFRIGERANT SERVICE INFORMATION 18 SPECIFICATIONS 19 6 FUNCTION a 19 c CONSTRUCTION d REPLACEMENT 11 SERVICE DIAGNOSIS 1 SAFETY INSTRUCTIONS The following instructions contain important safety precautions and should be strictly observed The terms used here are defined as follows WARNING There is a possibility of death2. Yala Wy 0400 Y3MOd HLGIM HLOIM MOZE 03433 FAI 3A193443 HOLIMS U3MOd 4004 MOGL NOUANASNOD 200970 VOL buys YL L JOVYIdNV 0870 VMLYO ZHOG ADPZ OZZ 25048 1995 YIMOd 8 4 3908 ONH 73000 OSDIMOUYS IMDZIYUSOH Srl LIE 10 g HNC 210BE L B M3IA 3015 TYNOILO3S 887 tl ltl B9LI LSOS 9P09 JONPOd Y SJUNOWI POO 94 Buluan Aq 8 q0 041U09 5 poo aul 401491X93 BY UO UONDSUSPUOI BSAISS9OXS Ul unsa 09 puo osjo AUD SS UONDI DISU y 10 2 5 WWOL s UO ONI SU Sy Ul 5 PUD SUONDSUUOY uloip A ddns UO ay 99UDPJ099D 2502 IYSNS au 0159 493 36040A peyoy 20 01 yuerqusy SNOLNONOD 9 40 8soH
3. 2115019 SEV 55019 20915 HOMILX3 10014 0 wuggz SNOISNINIC 30ISNI SNOSNINI 315100 12 2343 can BE je 5 0409 YIMOd REINER MOSE GG 404904 MOGL NOUAMNSNOD INLAT HOLIMS YaMOd VOL Bun4DIS VL L F39vU3dNV 0870 9 0 ondog 208 A0FZ 077 950441 1995 YIMOd 9 1 390Z1 INH 73000 9SDIMOUYS MDZIUSOH 61 74 93333 HLAIM 93333 0625 062 HLAIM Svs LIE b HNC 120BE R B MAIA 3915 IWNOILOAS 882 an mm Gals Avidsiq 8912 2905 JONPOd HY SJUNOUI poo y Buluan Aq S UO UONDSUSPUOD 5 AoW 09 Z puo 20 osjo s SJUSLUSJINbeJ UOND DISU AUD QPS UO D D SU 291 10 22095 WWOL DNUDLU UO ONJ SU Sy pa 0 S PUD uloip Ajddns U0
4. MIDI YHOJ 8604087 YDF HOLA INOW VET OPE LY 1NV43919434 adh 19945 uo ad q 18M07 2dA qn 19ddn g poprad ap son z un san YISNIGNOO EN MOOL YOSSIYdNOD AGISLNO DNOT 007 GHOO YIMOd OF Y N _ W3LSAS 1504330 st Tao ce 801 5 NASAS 139100 Tino mwwesz 019 BUIPIS 8000 1895 55 5 SEV 550 9 10319 YOIY3LNI 2 OAd 215019 SAV 55019 20915 YOMILXI 5 Hwwzg 0 wwggz LI SNOISNINIG 30ISN QJWLWGPE M WWOOSL SNOSNING 315170 a Sig a 1 5 3N103443 g 93119 SW TENDEN HLOIM MOQE NOLDAFR IVAH _ 30193433 31193433 3193443 3N103443 HOLMS SEMOd 55 401904 MOGL NolldNNSNOO INIT ave Sve Gre VOL 5_ VL L lt SI SIE gt 08 0 WAXZ9 0 ZHOG _ADPZ 0ZZ 95048 AlddNS Y3MOd OF 8 4 3805 L ONH TaGON et gt 9SDIMOUYS J9 UNDD 4OZIYSOH NAL e HNC 180BE L B MAIA 3015 TYNOILLO3S 887 8919 5905 Pnpold SJUNOLWU y 1340 Buruan Aq 5 JOIJ9 X9 991
5. g 9 X Juno 53140553007 Hwuz uopog Bygg 55019 67 1 9 10 99 0Jd 00101 YOSS RAND JIM YYOF 1940949 2604097 YDF NOLON MR INVYFDIGJIY adh 12945 2 ad san Jeddn YOIVMOHVAI UD 0000 N pw uy YISNIANOD MOOL YOSSIHdNOO V N_ WGISAS 1509430 Buljoog UONDSAUOJ WAISKS Mwwepr 55019 4008 199 S 559015 ONSD q SAV SSDI 109 9 MOINSLNI 25019 25014 SAV 55019 20915 401931X3 ool4 a wwegz x SNOISNINIC JUISNI AJWWGFE M WWOOLZ SNOISNINIG 3015170 728 99 30193443 2 0409 YIMOd MOSE GG 10004 MOGL NOldNNSNOO RITT VOL 6 12035 WL L JOvMIdNY 0 0 ZHOG ADPZ OZZ 95094 ATddNS YIMOd 8 71 380 L2 ONH 1300W SOIMOUYS Ja UNOD IMDZIYSOH NAL 3dVHS 9M1d HOLIMS 43MOd Gals AV1dSIA 4802 M3YIS S Z 0012 017 Tavas v AGISLNO 0047 GHOO 43MOd 131100 INO Nivea v N3dO 415 3 103343 3N193443 3JA
6. 34 SJUDP4029D 2502 Iysns y 0159 L 5 bi 493 2buny aboyon 01 mpseduay ONILVY3C0 SOH Z y JUNOW pood SIINOSSIIIV 0 110 uapoom 6725 55019 YAN LH9I3M 401994044 JOLOW 905530900 1940944 200408 YDF INNO DPS LY LNVUI39I9434 adh 19945 ad q 4amo7 san 19ddn YOLVYOdVAZ poprad iyo ep saon apr poo Uy YISNIGNOO Baal MOOL YOSSIYANOD ae 3015110 0072 NOD H3MOd Y N NAISAS 1504330 901 ao 29 99 NOMIN 157176 NiET 019 buIPIIS 4000 19915 SSQ UIDIS 5 SGV 5509 1091 YOIYILNI 5 3 25019 215019 SAV 55019 20915 YOIYILX3I Loo 0 uwgaz x LL SNOISNSNIG JUISNI rt u HJWWOZZ AJUWGFE M WWOOSL SNOISNINIC 3015110 a wa P 125 13443 sm 2 A40I YAMOd MOYE IVAH HOLIMS U3MOd HLOIM HLOIM HLOIM HLOIM 965 909904 MOGL NOLANNSNOD NIITI en Labeda VOL Gunns are v8 7 VZ9 O ZHOG ADPZ 0ZZ 95044 AT
7. 100 x SNOISNINIC JOISNI H WWO Z 008 SNOSNING 30560 7127 9990 INHA 0409 MOLE LYH 40004 MOGL NOlldHNSNOD NIITI VOL 69521045 YLL 3JOVHIDdNVY v8 7 VAXZ9 0 io0dog 208 ADHZ 02Z 95048 AlddNS YIMOd 84 7 3808 ONH 1300W 9SDIMOUS 18 UNOJ IMDZIYSOH 3dVHS 9119 MI3HISJET 3JGIS AVT1dSIG 53113 HOLIMS Gals 1510 AGISLNO 0074 YIMOd 008 ava8 v MIA avaH MIYDSJET do 131110 Nive 982 157170 Nivea 89 L L HLOIM JALLO3443 J 193443 44 HLGIM 3A1193443 Srl 03433 EZ f HNC 180BE R B M3lA 3015 TWNOILOAS Gals AV1dSIG 595 8 95 9 2 887 ltl 89L9 9S0S 9P09 VY SJUNOWU POO y Aq Q GD JO4JUOD 5 941 E 5081 BY UO UOIDSUSPUOD Ul yNses ADL 09 AUPIUUNY Z puo Jadogd pesinbes osjo s SJUSLUSJINbaJ AUD SPS UO
8. 4 3802 L ONH 73807 SDOMOYS IMDZIUSOH vl AdVHS 9018 JAIS AYIdSIQ M3YOS S Z 1811 AV3H MIYDSIG T N 3 0021 IA i alv Tavaa v AGISLNO 00 GHOO Y3MOd og 191400 HLGIM 3 193333 Fu 3A1L93443 HOLIMS 43MOd St8 LIE c HNC 150BE L B MAIA 3015 TYNOILLI3S Gals Av1dSIq av3H M3UIS S Z 1971 avaH M3YOS S Z 887 GL AV 1dSIG elis tl 8919 9905 2P00 JONPAd HY SJUNOLU POO y Aq SI POO 91 2 BY UO UOIDSUSPUOI UI COST 09 AjIpILUNY Z 1 Jadoud osjo si AUD 0 ay s 291 JD 22085 WWO UO ONI SU 2y 2 PUD uloip A ddns UO
9. UO UOINDSUSPUOD 5 UI yNses 09 AYPILUNY Z PUD JO osjo si Buloods sjuawadinbas AUD SPS Sy 10 22095 WWO Molly papinoJd DNUDW Sy 2 PUD uloip A ddns 49 0M UO Sy ULM S9UDP4022D 2502 IYSNS 94 015 493 3boyon ane OL mpsaduay SNOINIGNOD ONLLYY3CO 8soH 20 Z X JUNOW 5314055329 6 0 0d uapoom UNO 6709 55019 LHOISM 10 D9 01q NOUDILONA 08510400 JIM YYOF 1940349 2604097 YDF NOLAND INNO LIFE DFELY LNVYIOINISY adh 19995 uo adiq adAL qn 18ddn YOLVYOdVAZ popwond soon uD daap aqny puo wy Y33SNIGNOO MOOL HOSSIYdNOD Y N N3LSAS 1509 30 uonDSAU0J 1515 NOLYEORHEN 97 55019 4000 19915 SS9 UIDIS ONSO q SAV 5501 1091 YOINSLNI OAd 2115014 SEV 55019 20915 YOIMILX3
10. YDF NOANA IND UNG DPS LY INVHIOIYJIY adh 1995 ad q 4 m07 2dA agn 19ddn YOLVYOdVAZ papnoud 1oJop deep 7 y iy saqm aqni pw uy YFISNIANOD MOOL YOSSIYdNOO Tavas v man Y N WAISAS 1508410 JAISLNO 00FZ Y3M0d 1515 NOOR 39 lt 891 Hwwzz Mwweyp 00 4000 140 NIVSG see 12815 SSSJUIDIS 5 SAV 55019 1091 YOIYILN 25014 2115014 SAV 55019 HOIMILX3 Hwwzg 400 4 q wuggz SNOISNING 05 Hwwozz M WWOOLT SNOSNING 305170 728 N BE ge 0409 YIMOd so MOSE IV3H GG 407004 MOGL NOMdNNSNOO Kram HOLIMS S3MOd VOL BUNUDIS VL L P3103 3J9VY3dNV 03343 03333 3343 03343 0 9 0 Mondo ZHOG ADPZ 0ZZ 95044 AlddNS YIMOd soe g Y 3g0LZ 9NH 798 BSDOMOUS J9 UNOD INDZIYUSOH 1248 LIE 12 5 REFRIGERATION CIRCUIT Expansion Valve Drier Evaporator Fan Motor Upper Condenser Evaporator Lower Compressor Heat Exchange Refrigerant R134a 13 6 WIRING DIAGRAM Power Supply 1 phase 220 240V 50Hz GRY BR ELB Fan Motor LB 14 7 CONSTRUCTION Front Glass Plug Power Switch Se Ground Fault Interrupter Condenser Air Filter Sliding Glass Doo
11. inside The residual oil in copper tubes should be as little as possible Low residual oil type copper tubes are used in the shipped units 7 Evacuation Vacuum Pump and Refrigerant Charge R134a Never allow the oil in the vacuum pump to flow backward The vacuum level and vacuum pump may be the same as those for the current refrigerants However the rubber hose 18 and gauge manifold to be used for evacuation and refrigerant charge should be exclusively for R134a 8 Refrigerant Leak Check Refrigerant leaks can be detected by charging the unit with a little refrigerant raising the pressure with nitrogen and using an electric detector Do not use air or oxygen instead of nitrogen for this purpose or rise in pressure as well as in temperature may cause R134a to suddenly react with oxygen and explode Be sure to use nitrogen to prevent explosion 10 CONSTANT PRESSURE EXPANSION VALVE AND REFRIGERANT CHARGE a SPECIFICATIONS Model HYP 2 5QHD 1 Manufacturer Fuji Koki Part Number 447283 01 Refrigerant R134a Adjustment Range 0 01 0 29MPa Pressure Rise by Adjusting Screw 0 039 0 049MPa turn b FUNCTION When the low side pressure drops the Constant Pressure Expansion Valve opens and lets the refrigerant flow to keep a constant pressure c CONSTRUCTION High Pressure Adjusting Screw Needle Valve Or IAAI ou 7 pg _____ ciose SY Open 12222272272 ZEN STF DOWN Low Press
12. use 2 Foods have been stored for a long of the showcase time 1 Exterior Relative humidity Instruct the user on exceeding 60 characteristics and proper 2 Interior Doors opened too use of the showcase Wipe off frequently or left open excessive frost with a soft cloth 21
13. ID DJSU Sy JD 300ds papinoud pnupw UONDNJISU 2991 U PUD ulpip A ddns 49 0M UO 9509 IYSNS y 10450 93 207 01 yuerquy SNOLIONOD ONLY X g X utor JUNOW SIINOSSFIIV 5 Huw 6 x GJwwgp 1 19104 uapoom 6109 55029 1 404987044 JOYON 04 805520000 YOR Jeypaug 2604097 YDF NODION LMD MALE OPE LY INVYIOIYJIY adh 1995 uo 18M07 adA agn 19ddn YOLVYOdVAZ UD daap saou 7 bry seqn 90 aqny uy YISNIANOD MOOL NOSSIYdNOD W N N3LSAS 1509430 1515 NOLWBORATY Hwwz M uuggge sso g Bupis 4000 19915 SS U 0 S 0115014 SAV 55019 1091 YOIYILN 2nNsDId OAd 2115014 SAY 5019 20912 YOIMILX3 Hwwyg x 10014 SNOISNINIC 305 M WWOOBL SNOSNINN 305100 127 IND Tavas v MIA JAISLNO DNOT 89 go go ee 131110 21100
14. IL03443 962 HLGIM 03433 MAIA 3015 TYNOLLI3S Gals Av1dSIG 957 2806 MINDSJEZ 8919 8505 5 JONPold SJUNOLWW POO y Aq SI poo aul UO UOINDSUSPUOI UI 09 Ay p luny an Ja 0M h HNC 210BE R B Jadoud osjo UONDI DJSU AUD OS 991 JD WWOL pap nold jonuow UI DOIU Oa e PUD 5 uloip A ddns 49 0M UO suo s ey UONISUUOD y SJUDP4O99D 9509 Iysns y DISU OS 493 age 01 uaquy SNOLLIGNOD INLINYIdO amp s X Z X Julop g x Juno SIINOSSFOIV Huw x aJwwg Ly 110 uapoom 2 Bygg 55019 1 404991044 NOUDTONd 055280000 JeYDEUg 2604097
15. ND90 SUONINIJSU AjJadoid 502 IYSNS 291 0159 497 aboyon popoy agg 01 yuarquy SNOLLIONOD 9 aSOH Juno 53 90553007 LG x a wwg Ly 19104 uapoom YOO 55019 BAZE A9VMOVd LH913M 4010994044 NOLLJ3LOY 908539990 am YHOJ 1940949 PNOO 9504097 403 IL UNE MALTE OPS LY LNVY3918I3 adh 19945 ad q 2 ad agn YOLVYOdWAT papaoud uoy daap snos 7 sagn adh pn uy YISNIANOO MOOL YOSSIYdNOO Y N Buljoog UONDSAUOI WILSAS 1504 30 MALSAS NOLNYFIRFU x sso9 4009 1995 SS9 UIDIS 2135014 SY 55009 021 2115019 SEV 55019 10915 YOIYILNI YOIYILX3 x 10014 0 uwggz SNOISNANIG 305 H uwozz M WWOOTL SNOISNINIG 3015110 99 0 005 1 MOGL 18 3 3 6 0409 Y3MO MOSE 1V3 VOL Bun4ojS peyoy d H NOUdANSNOD 3J9VY3IdNV v8Z VMZ9 0 ZHOS AOWZ OTT 95044 AlddNS YIMOd 8
16. S051 800 HOSHIZAKI COUNTER SHOWCASE MODEL HNC 120BE L R B HNC 150BE L R B HNC 180BE L R B HNC 210BE L R B SERVICE MANUAL IMPORTANT This manual should be read carefully before the showcase is serviced or maintenance operations are performed Only qualified service technicians should install service and maintain the showcase Read the warnings contained in this booklet carefully as they give important information regarding safety Please retain this booklet for any further reference that may be necessary CONTENTS PAGE SAFETY INSTRUCTIONS mn ne 1 MODEL NAME 3 OPERATING INSTRUCTIONS mnmmmnnmmnnnnnnnnmnnnnmnnnnmnnnnmnnnnnnnnnmnmnnnmnnnnnnnn 4 DIMENSIONS SPECIFICATIONS 5 HNC 120BE LB 5 b HNC 120BE R B 6 HNC 150BE L B 7 d HNC 150BE R B aa nn 8 HNC 180BE L B m nn nn 9 I ENCTEOBE R Bere 10 0 HNC 210BE L B 11 h HNC 210BE R B
17. SU UO Ul yNses 09 AUPILUNY 2 1 osjo si SJUSWeJINbal UOND DISU AUD SS UOND DJSU y JD 92095 WWOL UONONJJSU Sy 5 SUO JOBUUOD PUD up p Alddns UO y S0UDP4090D 2502 5 y 0159 0081 Syr ag aboyon popoy ane 01 moraduag puaqur SNOLIONOD NLH SOH g Juno pood 153140553097 H wwz 0 10d uoyog 55019 DAZE LH9I3M 103981 04d J0JON 0221088 8085209000 JIM YHOJ YG 1940349 604097 YO NULON IWO WORT DFELY INVYIOINITY adh 19995 uo adig san 19ddn MOLVYOdVAI pap mond u04 deap snor 7 sagn Z adh aqn puo YISNIANOD MOOL YOSSIHdNOO VEE MIA V N_ NGISAS 1500330 3015110 SNOT 0072 HFIMOd UONDAAUOJ 1505 Og LUNG NIYA H wwzz x 5801 4000 89 18915 SS9 UID S 0135014 SGV 55019 20819 HOIYILN
18. ddNS YIMOd OG 8 1 390SL INH 1300N Y le rte SDOMOYS J9 UNOD INDZIYUSOH d HNC 150BE R B M3IA 3015 TYNOILI3S 3015 19510 aVaH MIYDSJG T QV3H MIYOS S Z 887 VER 8 tl 89 LO HS0S 9P00 VY SJUNOW y Buluan Aq 8 q0 041U02 5 aul BY UO Ul 9051 09 AIPILUNY 2 pasinbes osjo si Buloods S U WaJINbas AUD 0 ay s 5 BY JD 22045 WWO paplAoid UO ONJ SU 9y 2 PUD uloip A ddns 49 0M 34 SJUDP4099D 9509 Iysns y 0159 1 493 aboyon uoy aoo 01 mpiadua Y FS X Z pulop JUNOW SJINOSSIOOV 0 JallDg uapoom JOWMOWd 6725 55029 LHOISM
19. ming 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 Leaked refrigerant may produce a poisonous gas when coming in contact with an open flame 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 grounding 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 of 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 grounding terminal 7 Do not service the electrical parts with we
20. or serious injury for 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 for 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 that the circuit is completely evacuated The refrigerant may produce a poisonous gas when co
21. r Food Mount 8 REMOVAL AND REPLACEMENT CAUTION 1 Be sure to unplug the showcase before removing or replacing the parts 2 Handle the glass parts with care a SIDE COVER Remove the two machine screws at the bottom lift up the side cover and unhook the top b TOP COVER Remove the sliding door and side cover 1 The top cover is hooked and fixed on the top frame aluminum 2 Lift up and unhook the rear end of the top cover 3 When the rear part is lifted off move it forward to unhook and remove the front part The top cover is tightly hooked on the top frame and will not come off easily Remove it with care to avoid injury To replace reverse the removal procedure c FRONT GLASS Remove the sliding door side cover and top cover Lift the front glass off the bottom fit The bottom and side interior of the front glass is sealed with silicone sealant black Be sure to re seal it at replacement 16 Front Glass Top Frame Fig 2 d SIDE FRAME Remove the sliding door side cover and top cover Unbind the wiring on the side frame Remove the two screws securing the top frame and the top of the side frame Lift the side frame off the bottom fit e CENTER FRAME Except HNC 120 type Remove the two flat head machine screws black securing the center frame to the rear and the two machine screws securing the center frame to the top frame Tilt the center frame and
22. release it from the fit f HOLDER EVAPORATOR PIPE Remove the truss head tapping screw 4 x 25 from the bottom of the top frame Take off the center frame Be careful with the evaporator pipe It will be released and hang down Remove the truss head tapping screw 4 x 10 from the bottom of the top frame g UNIT Remove the sliding door side cover top cover top frame and side frame Take off the compressor terminal cover and remove the starter and motor protector Uninsulate the expansion valve and unbraze the outlet pipe with a gas burner see 11 CONSTANT PRESSURE EXPANSION VALVE AND REFRIGERANT CHARGE Unbraze the joint indicated Remove the four machine screws securing the unit base The whole unit can be pulled out 17 Fig 3 Truss Head Tapping Holder Screw 4 x 25 Evaporator Pipe Evaporator Pipe Truss Head Tapping Screw 4 x 10 Fig 4 Outlet Pipe Expansion Valve 9 REFRIGERANT SERVICE INFORMATION 1 Allowable Compressor Opening Time and Prevention of Lubricant Mixture R134a The compressor must not be opened more than 30 minutes in replacement or service Do not mix lubricants of different compressors even if both are charged with R134a except when they uses the same lubricant 2 Treatment for Refrigerant Leak R134a If a refrigerant leak occurs in the low side of a showcase charged with R134a air may be drawn in Even if the low side press
23. t 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 Check for water leaks in the water supply and drain pipes to prevent damage to the vicinity including household effects 2 Always check the unit for proper operation before finishing services 3 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 MODEL NAME HNC 120 BE L R B High Grade ___ L Color of Exterior B Black Counter Showcase Unit Location Width cm L Unit on left 120 150 180 210 R Unit on right HE model Development Order Starts from A Unit on right Unit on left 3 OPERATING INSTRUCTIONS IMPORTANT Hoshizaki Counter Showcase is intended for temporary food display Constructed with much glass this showcase gives relatively insufficient heat insulation and poor cooling performance compared with refrigerators in general For safe and efficient operation be sure to follow the instructions below 1 Do not leave foods in the showcase after service hours or they may dry or spoil Foods that should not dry must be covered or wrapped up in a plastic film 2 Store only pre refrigerated items in the sho
24. ure d REPLACEMENT A WARNING Always protect the valve body by using a damp cloth to prevent the valve from overheating Do not braze with the valve body exceeding 110 C IMPORTANT Always install a new Drier every time the sealed refrigeration system is opened Do not replace the Drier until after all other repairs or replacement have been made 1 Recover the refrigerant R134a and store it in an approved container 2 Remove the Insulation Cover and Cap from the Expansion Valve 3 Remove the Expansion Valve by heating the Inlet and Outlet Pipes with a gas burner Wet Cloth Evaporator Fig 7 20 11 SERVICE DIAGNOSIS 1 Showcase will 1 Ground fault circuit interrupter in 1 Turn ON start OFF position 2 Unplugged 2 Plug in 3 Supply voltage too low 3 Plug into a separate receptacle of 220 240V 6 Breaker or fuse blown out contacts 6 Motor protector tripped 6 Ventilate and reset fan motor 2 Poor cooling 1 Gas leaks 1 Repair the leaks and recharge performance 2 Fan motor defective 2 Replace 4 Condenser air inlet blocked ____ 4 9 Instruct the user on characteristics and proper use producing equipment 7 Doors opened too frequently or left open 8 Packed with foods or warm or hot foods inside 9 Ambient temperature exceeding 30 C 3 Dry foods 1 Foods have been stored from the Instruct the user on previous day characteristics and proper
25. ure is higher than the atmospheric pressure in normal operation a continuous refrigerant leak will eventually lower the low side pressure below the atmospheric pressure and will cause air suction Air contains a large amount of moisture and ester easily absorbs a lot of moisture If a showcase charged with R134a has possibly drawn in air the drier must be replaced Be sure to use a drier designed for R134a 3 Handling of Handy Flux R134a Repair of the refrigerant circuit needs brazing It is no problem to use the same handy flux that has been used for the current refrigerants However its entrance into the refrigerant circuit should be avoided as much as possible 4 Oil for Processing of Copper Tubing R134a When processing the copper tubing for service wipe off oil if any used by using alcohol or the like Do not use too much oil and let it into the tubing or wax contained in the oil will clog the capillary tubing 5 Service Parts for R134a Some parts used for refrigerants other than R134a are similar to those for R134a But never use any parts unless they are specified for R134a because their endurance against the refrigerant have not been evaluated Also for R134a do not use any parts that have been used for other refrigerants Otherwise wax and chlorine remaining on the parts may adversely affect R134a 6 Replacement Copper Tubing R134a The copper tubes currently in use are available for R134a But do not use them if oily
26. wcase It takes longer for foods to cool in the showcase than in a refrigerator 3 Do not leave the doors open or open them too frequently The interior temperature may rise resulting in food deterioration 4 Do not pack the showcase with foods The cooling performance may reduce resulting in food deterioration 5 The showcase should not be exposed to direct sunlight or located next to ovens grills or other high heat producing equipment The interior temperature may rise resulting in food deterioration 6 The ambient temperature should not exceed 30 C The cooling performance may reduce resulting in food deterioration 7 The food mount can be used on either side The food temperature is controllable by turning over the food mount to change the distance from the interior bottom Normal condition When food temperature is too low For more intensive cooling 8 The maximum safe height for displaying food products is 3 5 9 cm above the interior bottom Food products should not be placed above this height as they may not remain cold enough to avoid spoilage 4 DIMENSIONS SPECIFICATIONS a HNC 120BE L B M3IA 3015 TYNOILO3S Gals AV1dSIO avaH M3YOS S Z avaH MIHDSJGT 88 2 SI 4 i 3415 AV1dSIG L 042 8919 1905 19NPOLd SJUNOLU POO y Aq 8 poo aul
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