Hitachi R-T310ERU1 User manual

TABLE
SPECIFICATION............................................................................................
2
MAINPARTSCOMPONENTS..................................................................................
2
BASICOPERATION..................................................................................
3
RESISTANCEVALUE ..................................................................................
4
ERRORCODE ..................................................................................
5
CIRCUITDIAGRAM..............................................................................
6
PARTSCONSTITUTION
MODEL:R-T310ERU1.............................................................................................
7-18
SPECIFICATIONS
TYPEDOUBLE DOOR
MODEL
POWER SOURCE1Ø,220V-240V,50Hz
POWER INPUT(W)120
TOTAL CURRENT(A)0.9
VOLUME260L
600
1560
655
NETWEIGHT(Kgs)54
NO.2022E REFRIGERATOR H.C.P.T.
OCT'2010
R-T310ERU1(SLS,PWH,PBK)
R-T310ERU1
SERVICE MANUAL
DIMENSIONS
(mm)
TOTALNET
W
H
D
HITACHI
PT NO.2022E
R-T310ERU1(SLS,PWH,PBK)
GENERAL SERVICE

1.
Inordertodisassembleandrepairthe
unitinquestion,besuretodisconnect
thepowercordplugfromthepower
outletbeforestartingthework.
2.
Ifitisnecessarytoreplaceanyparts,theyshouldbereplacedwithrespectivegenuinepartsfortheunit,andthe
replacement mustbeeffectedincorrectmanneraccordingtotheinstructionsintheServiceManualoftheunit.
3.
Aftercompletionofrepairs,theinitialstateshouldberestored.
4.
Leadwiresshouldbeconnectedandlaidasintheinitialstate.
5.
Modificationoftheunitbytheuserhimselfshouldabsolutelybe
prohibited.
6.
Toolsandmeasuringinstrumentsforuseinrepairsorinspectionshouldbeaccuratelycalibratedinadvance.
7.
Ininstallingtheunithavingbeenrepaired,becarefultopreventtheoccurrenceofanyaccidentsuchaselectrical
shock,leakofcurrent,orbodilyinjuryduetothedropofanypart.
8.
Tochecktheinsulationoftheunit,measuretheinsulationresistancebetweenthepowercordplugandgrounding
terminaloftheunit.
Theinsulationresistanceshouldbe1M
Ω
ormoreasmeasuredbya500VDCmegger.
9.
Theinitiallocationofinstallationsuchaswindow,floorortheothershouldbecheckedforbeingsafeenoughto
supporttherepairedunitagain.
Ifitisfoundnotsostrongandsafe,theunitshouldbeinstalledattheinitiallocationafterreinforcedoratanewlocation.
10.
Anyinflammableobjectmustnotbeplaced
aboutthelocationofinstallation.
11.
Checkthegroundingtoseewhetheritisproper
ornot,andifitisfoundimproper,connectthe
groundingterminaltotheearth.
SAFETY DURING REPAIR WORK
First,Imustdisconnect
thepowercordplug
fromthepoweroutlet.
Ifthe contactsof electricalpartsare
defective, replace theelectricalparts
without trying torepair them.
DANGER
1

SPECIFICATION
MODEL
COMPRESSORPTR-T310EM001(FL1152-SH)
STARTING DEVICEPTR-250EX021(PGT0SAT)
OVERLOAD RELAYPTR-200WGX037(1.4C36A3)
STARTING CAPACITORPTR-47KP003(3 F/400V)
R(21°C)=12kΩ±3%
R(25°C)=10kΩ±2%
REFRIGERATOR SENSORPTR-T300W034R(O°C)=6.35kΩ±2%
REFRIGERATORCHARGING R-134a(kg)
TEMPERATUREFRESHFOOD
CONTROLFREEZER
DEFROSTING WAY
DEFROSTINGINITIATION
SYSTEMTERMINATION
EVAPORATION
FREEZER****
OTHERFEATURE
MINUS-ZEROCOOLING
NANOTITANIUM
MAINPARTSCOMPONENTS
COMPRESSORPTR-T310EM001(FL1152-SH)
PHASESINGLE PHASE
RATEVOLTAGE(V)220
RATEFREQUENCY(Hz)50
POLE NUMBER2
CONNECTION
STARTING CURRENT(A)
DEFROSTHEATER
R-T310ERU1
230V/165W/322.7Ω
0.095
F:AUTOMATIC,R:AUTOMATIC
FORCED
6.0
NO
YES
AMBIENTTEMPERATURESENSOR
YES
RESISTANCEVALUE 75°C M-C =23.8Ω
S-C =42.4Ω
DIAL
SELECTDAMPERDIAL
HEATER
F:AUTOMATIC,R:AUTOMATIC
PTR-Z400V050
MAINCOILSTARTINGCOIL
MS
C
2

Off-time
Defrosting
R-sensor Hightemp.
R-sensor≦Lowtemp.
Comp. on
Comp. off Off
3
Comp.Condition Off
Off
On
Off
ConditionR-Fan
On
●Comp.
●Power
supply
●R-Room
Temp.
●R-Fan
●Evaporator
Temp.
●Defrost
heater
●R-Lamp
Hightemp.(4℃)
Low temp.(2℃)
On
R-sensor
On
Open
On
●R-Door
(R-Door sw)
8.5℃D-sensor
On
On
～～～～～～～～
Off-time
10min
～
t1t2t3t4 Pre-Cool
Off-time
10min
Pre-Cool time≦30min
Basicoperation(timechart) of 260-290L (STD) REF.
Comp.On-time：
t1+t2+t3+t4+… 12h High
Priority
Off-time
10min High
Priority
Defrosting
25 s

RESISTANCE VALUE RESISTANCE
Temp.ResistanceTemp.ResistanceTemp.Resistance
()(Ω)()(Ω)()(Ω)
～～～～～～
-2019.23k-58271.14k-20105.38k
～～～～～～
-1514.26k-2019.17k-1582.03k
-1010.78k-1010.83k-1060.86k
-58.23k-58.27k-545.67k
06.35k06.38k034.62k
54.94k54.97k526.52k
103.88k103.90k1020.50k
153.08k153.09k1515.99k
202.46k202.47k2012.00k
251.98k251.98k259.97k
301.60k301.61k307.97k
351.31k401.08k356.42k
401.07k500.74k405.20k
～～～～～～
600.51k610.50k622.32k
～～～～～～
R-sensorD-sensorTC-sensor
4
Normal
range
Abnormal
range
Abnormal
range
Display
Errorcode
Display
Errorcode

ERRORCODE
Priority
sequence Error code (LEDonPCB) Breakdown list Breakdown description Operation
11sON + BlinktwiceR-sensorabnormalR-sensorvalueabnormalProvisional mode
21sON + Blink3timesTC-sensorabnormalTC-sensorvalueabnormalDisplayerrorcode
31sON + Blink4timesD-sensorabnormalD-sensorvalueabnormalNodefrosting
4Blinktwice EEPROM data
abnormal EEPROM data abnormal Displayerrorcode
5Blink4times Defrostingcircuit
abnormal Defrostingcontinues evenafter2hours After2hours,stopdefrosting anddisplayerrorcode
63sON + BlinktwiceRefrigeratornot cool R-sensorstaysover10℃
for72 hours Displayerrorcode
5

MODEL:R-T310ERU1(SLS,PWH,PBK)
6

6
2
3
4
5
87
9
10
10
11
12
12
13
13
1

14 23
26
27
15
16
70
69
72
71
74
79
76
75
78
77
88
73
10
10
16
85
28
17
21
22
19
52
86
87
50
51
49 48
46
47
38
29
31 32
33 34 35 36 37
55
61
53 54
62
57
56
56
58 59 63
60
68
67 66
65 64
39
30
40 41
42
43
44
45
18
20
24
25
84
83
82
81
80

91
93
92
89
94
95
90