Service Manual MPR-721 MPR-721R

Service Manual
Pharmaceutical refrigerator
MPR-721
MPR-721R
FILE No.
SANYO Electric Co., Ltd.
Biomedical Business Division
SM9910162
Effective models
This service manual is effective following models.
Model name
MPR-721
MPR-721R
Product code
823 621 51
823 621 52
823 621 53
823 621 54
821 621 55
823 621 71
821 621 73
821 621 74
Voltage and Frequency
115V
60Hz
220V
50Hz
220V
60Hz
230/240V
50Hz
220V
50Hz
115V
60Hz
220V
60Hz
230/240V
50Hz
Contents
㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷 㩷
Page
Specifications
1
䋭Structural specifications
䋭Refrigerator, performance specifications
䋭Control specifications
Dimensions
4
Cooling unit parts
5
Cooling circuits
6
Wiring diagram
7
Circuit diagram
8
Components on PCB
9
Electric parts
10
Control specification
11
Connections on PCB
24
Specifications of sensor
25
Mounting of compressor terminal cover
26
Parts layout
29
Test data
31
䋭Temperature of components
䋭Pull-down speed
䋭Pull-down pressure
䋭Current input and maximum heat discharge
䋭Temperature uniformity
Disposal of your product
36
Instruction manual (extract)
37
UPON GAS LEAK REPAIR
(1) Replace compressor when you find gas leak on low pressure side,
because moisture in refrigerating oil which causes refrigerating oil to
be deteriorated and capillary tube to be clogged.
If there are not remain gas in high pressure stage, you should
replace compressor, as well.
(2) Use following special tools for repair.
z C h a r g i n g c y l i n d e r
z V a c u u m p u m p
z G a u g e M a n i f o l d
z E x h a u s t i n g h o s e
Specifications
Structural specifications
MPR-721
External dimensions
Internal dimensions
Effective capacity
Exterior
Interior
Doors
Insulation
Shelves
Drawers
Access port
Casters
Weight
Accessories
Optional
components
MPR-721R
W770 x D830 x H1955 (mm)
W650 x D710 x H1500 (mm)
684 L
671 L
Painted steel
Painted steel
Double layer pair glass/steel plate, automatic closing mechanism
Rigid polyurethane foamed-in place
Hard steel wire on polyester coating
x 4 pcs
-----Dimensions; W565 x D604
Allowable load; 50Kg/ shelf
------Painted steel x 5 pcs
Dimensions; W550 x D530
Allowable load; 40Kg/drawer
Ǿ30 mm in 3 locations (left/right side and ceiling)
4 (2 leveling legs)
174 kg
193 kg
1 set of key, 2 sets of bolt,
2 nylon clips, 2 binders
Automatic temperature recorder (MTR-0621LH),
Recorder fixture (MPR-S30),
Automatic temperature recorder (MTR-G04A, G04C),
Recorder fixture (MPR-S7),
Battery kit for power failure alarm (MPR-48B)
Interface board (MTR-480C)
1
Refrigerator, Performance specifications
MPR-721
Compressor
Refrigerant
Oil
Oil additive
Evaporator
Condenser
Defrost control
Cooling capacity
Heating capacity
Control system
Power supply
Temperature control
range
Usable ambient temp
Noise level
Maximum pressure
Rated voltage
Rated frequency
Power consumption
MPR-721R
Hermetic type Output; 200W
R-134a
Type;ǩ15HT
none
Fin and tube type
Wire and tube, skin condenser type
Cycle defrost and evaporator temperature-sensing (Fully automatic)
Automatic defrosting starts when DEF sensor temperature is -12.0͠
(initial) and completes when it is 5.0͠ (initial).
Chamber temperature and ‘dF’ are alternately displayed during defrost.
+2͠(1/2 air temp, Ambient temp; 35͠, No load)
+23͠(Ambient temp; -5͠)
Microprocessor control
Sensor: Thermistor
Local voltage
+2͠ ~ +23͠
-5͠ ~ +35͠
41 dB (A scale)
1516 kPa
AC110V
AC115V
60Hz
60Hz
330W
340W
2
AC220V
60Hz
330W
AC220V
50Hz
280W
AC230V
50Hz
305W
AC240V
50Hz
305W
Functions
MPR-721
Temperature display
Temperature set range
High-temperature alarm
Low-temperature alarm
Door alarm
Remote alarm contact
Life span for fan motor
Life span for battery
Setting check
(MPR-48B, option)
Power failure alarm
(Option)
Overheating protection
Overcooling protection
Self-diagnostic functions
Control panel
Key lock functions
MPR-721R
Digital temperature display, green LED
Temperature adjustment range: 2͠ ~ 23͠
Digital settings (Unit: 1͠)
All digits flash on digital display
ALARM lamp flashes, buzzer alarm with 15-minute delay
Preset alarm temperature can be varied between set temp.+2͠ and
+14͠. (Default: Set temp. +5͠)
All digits flash on digital display
ALARM lamp flashes, buzzer alarm with 15 minutes delay
Preset alarm temperature can be varied between set temp.-2͠ and
-14͠. (Default: Set temp. -5͠)
DOOR lamp is lit, buzzer alarm with 1 ~ 15 minutes delay.
(Default: 2min)
Allowable contact capacity DC30V, Max. 2A
When the alarming buzzer actives or power failure occurred, Open
between COM. and N.C., Close between COM. and N.O.
When you press BUZZER key to stop buzzer sounding, Open
between COM. and N.O., Close between COM. and N.C.
Fan motor accumulation time is notified when about 6 years has
passed.
Battery accumulation time is notified when about 3 years has
passed.
When battery switch is turned on without setting after attachment,
E09 and chamber temp are displayed.
During power failure is occurred, ALARM lamp blinks, buzzer sounds
intermittently and remote alarm contact turns over.
When the chamber temperature is equal or higher than 30 ͠ ,
condensing fan, DEF heater, drain pan heater and drain pipe heater
are turned off.
When the chamber temperature is equal or lower than 25 ͠ ,
condensing fan, DEF heater, drain pan heater and drain pipe heater
are turned on.
When the chamber temperature is equal or lower than 1 ͠ ,
compressor is turned off.
When the chamber temperature is equal or higher than 6 ͠ ,
compressor is turned on.
When any sensor among temp. sensor, AT sensor, DEF sensor and
comp. safe sensor is failed, error code and chamber temperature is
alternately displayed, the buzzer sounds intermittently and remote
alarm contact turns over.
ALARM: Alarm indicator lamp
DOOR: Door check lamp for door ajar
BUZZER: Alarm buzzer stop key
SET: Set key
key: Scroll key
key: Up arrow key
Press the
key for around 5 seconds to be Key Lock available.
L0: Unlock
L1: Lock
3
Dimensions
4
Cooling unit parts
Unit䋺䌭䌭
Parts description
Compressor
Type
Code
Rated voltage
Refrigeration oil
110/115V, 60Hz
FL-2088PF
Specification
220~240V, 50Hz
FL-2088SP
220V, 60Hz
FL-2088RA
7FB-0-M101-003-02
7FB-0-M101-003-03
7FB-0-M101-003-04
110/115V, 60Hz
220~240V, 50Hz
220V, 60Hz
Kind䋺㱍15HT
Cooling system
Condenser 䋨Type䋩
Charged q’ty䋺300cc
Forced air cooling system
W 480㬍P40㬍6 columns䋨㱢6.35䋩㬍3pcs. Wire and tube
Evaporating pipe
Evaporator 䋨Type䋩
W 390㬍P30㬍4 columns䋨㱢6.0 X T0.5䋩
Fin and tube type
Capillary tube
Resistance
Length
Psi
57Psi
L
1500
Outer diameter (OD)
2.4
Internal diameter (ID)
Refrigerant
1.2
R-134a
Charged q’ty: 110g
XH-9
Charged q’ty: 18g
Drier
Condensing fan
Condensing fan motor
Cooling fan
Cooling fan motor
㱢196㬍4pcs. Material䋺AS 䋨Suction䋩
SE4-D041N1P
SE4-D041N5P
SE4-D041N5P
Output: 4W
Output: 4W
Output: 4W
㱢120㬍4pcs. Material䋺ABS 䋨Suction䋩
FU2-B041C1MP
FU2-B041C5MP
FU2-B041C5MP
Output: 4W
Output: 4W
Output: 4W
5
Cooling circuits
6
Wiring Diagram
7
Circuit Diagram
8
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6Q&QQT59
6GORUGPUQT
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6Q$CVVGT[
5
%0
6Q6GOREQPVTQN2%$
%0
%0
6Q%QORUCHGUGPUQT
#6UGPUQT
%0
6Q5YKVEJKPIRQYGTUWRRN[
%0
6Q/64
1RVKQP
9
%0
6Q&KURNC[2%$
%0
%0
6Q4GOQVGCNCTO‫ޓ‬6GTOKPCN
%0
6Q6GOREQPVTQNTGNC[
%QORRTQVGEVGFTGNC[
%0
6Q&KURNC[2%$
%0
%0
6Q6GOREQPVTQN2%$
%0
Components on PCB
Electric Parts
MPR-721/721R
Compressor
PTC
Overload relay
Starting capacitor
Running capacitor
Condensing fan motor
Cooling fan motor
DEF. heater
Drain pan heater
Drain pipe heater
Front heater
Frame heater
Comp. protected relay
Temp. control relay
Ballast
Fluorescent lamp
Glow starter
Switching power supply
Temp. fuse
Temp. sensor
DEF. sensor
AT sensor
Comp. safe sensor
Low temp. alarm thermo
Thermal protector
Breaker switch
FL switch
Door switch
Test switch
Type
Code
Rated voltage (50/60Hz)
Winding resistance C-R(Main)
C-S(Aux)
Type
Resistance (AT25㷄)
Type
Action to the temp. (No current)
OFF
ON
Action to the current (AT25㷄)
Operation time
Rating
Rating
Type
Rating
Type
Rating
Rating
Resistance (AT25㷄)
Rating
Resistance (AT25㷄)
Rating
Resistance (AT25㷄)
Rating
Resistance (AT25㷄)
Rating
Resistance (AT25㷄)
Type
Rating
Coil
Type
Contact capacity
Coil
Type
Rating
Type
Rating
Type
Type
Rated output
Rating
Type
Rating
Type
Rating
Type
Rating
Type
Rating
Type
䌏䌎
䌏䌆䌆
Type
䌏䌎
䌏䌆䌆
Type
Rating
Breaking Current
Type
Rating
Type
Rating
Type
Rating
10
AC110V/115V,60Hz
AC220V,50Hz
AC220V,60Hz
AC230/240V,50Hz
FL-2088PF
7FB-0-M101-003-02
110/115V, 60Hz
1.48㱅㩿㪉㪌㷄㪀
㪊㪅㪏㪏㱅㩿㪉㪌㷄㪀
P6R0SAT
6.8+/-1.4㱅
5.6C36C1
FL-2088SP
7FB-0-M101-003-03
220-240V, 50Hz
㪎㪅㪎㪏㱅㩿㪉㪌㷄㪀
㪈㪊㪅㪍㪐㱅㩿㪉㪌㷄㪀
PGR0SAT
33+/-6.6ȍ
2.5C36C1
FL-2088RA
7FB-0-M101-003-04
220V, 60Hz
㪋㪅㪐㪈㱅㩿㪉㪌㷄㪀
㪏㪅㪋㪍㱅㩿㪉㪌㷄㪀
PGR0SAT
33+/-6.6ȍ
2.2C36C1
FL-2088SP
7FB-0-M101-003-03
230/240V, 50Hz
㪎㪅㪎㪏㱅㩿㪉㪌㷄㪀
㪈㪊㪅㪍㪐㱅㩿㪉㪌㷄㪀
PGR0SAT
33+/-6.6ȍ
2.5C36C1
㪈㪊㪏㷄䌾㪈㪉㪈㷄
㪍㪎㷄䌾㪌㪌㷄
㪈㪌㪅㪍㪘
㪍䌾㪈㪋㫊㪼㪺
150µF䋬160VAC
20µF䋬260VAC
SE4-D041N1P
AC115V䋬3W
FU2-R041C1MP
AC115V䋬4P
73.8W䇮㪈㪈㪌㪭
㪈㪎㪐㪅㪉㱅
10W䋬115V
1322.5ȍ
2.8W䋬115V
4729ȍ
6.9W䋬115V
1916ȍ
13.2W䋬115V
1002ȍ
G4F-1123T
AC250V䋬20A
DC12V
G4F-1123T
AC250V䋬20A
DC12V
FCB-215711520W, 115V, 60Hz
FL20SD
20W䋬D32
FG-1P
ZWS10-12/J
AC100-240V䋬50/60Hz䋬0.3A
DC12V䋬0.85A
AC250V䋬7A䋬76㷄 melt doun
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
ATB-S1176
6㷄
-1㷄
TH-2
30㷄
40㷄
IR11A2E101R
250V, 10A
Over than 10A
HLS112D
AC250V䋬6A
SS160-A15
㪉㪏㪭䇮㪌㪇㪤㪘
SLE6A2-5
㪋㪘䇮㪉㪌㪇㪭㪘㪚
㪈㪊㪏㷄䌾㪈㪉㪈㷄
㪍㪎㷄䌾㪌㪌㷄
㪏㪅㪏㪘
㪍䌾㪈㪋㫊㪼㪺
60µF䋬300VAC
4µF䋬400VAC
SE4-D041N5P
AC220-240V, 3W
FL2-B031C5MP
AC220-240V, 4W
㪎㪊㪅㪏㪮䋬㪉㪊㪇㪭
㪎㪈㪍㪅㪏㱅
10W䋬230V
5290ȍ
2.6W䋬230V
20700ȍ
6.9W䋬230V
7666ȍ
13.2W䋬230V
4008ȍ
G4F-1123T
AC250V䋬20A
DC12V
G4F-1123T
AC250V䋬20A
DC12V
FCB-202022/23
20W, 220/230V, 50Hz
FL20SD
20W䋬D32
FG-1P
ZWS10-12/J
AC100-240V䋬50/60Hz䋬0.3A
DC12V䋬0.85A
AC250V䋬7A䋬76㷄 melt doun
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
ATB-S1176
6㷄
-1㷄
TH-2
30㷄
40㷄
IR11A2E101R
250V, 10A
Over than 10A
HLS112D
AC250V䋬6A
SS160-A15
㪉㪏㪭䇮㪌㪇㪤㪘
SLE6A2-5
㪋㪘䇮㪉㪌㪇㪭㪘㪚
㪈㪊㪏㷄䌾㪈㪉㪈㷄
㪍㪎㷄䌾㪌㪌㷄
㪏㪅㪈㪘
㪍䌾㪈㪋㫊㪼㪺
60µF䋬300VAC
4µF䋬400VAC
SE4-D041N5P
AC220-240V, 3W
FL2-B031C5MP
AC220-240V, 4W
㪎㪊㪅㪏㪮䋬㪉㪊㪇㪭
㪎㪈㪍㪅㪏㱅
10W䋬230V
5290ȍ
2.6W䋬230V
20700ȍ
6.9W䋬230V
7666ȍ
13.2W䋬230V
4008ȍ
G4F-1123T
AC250V䋬20A
DC12V
G4F-1123T
AC250V䋬20A
DC12V
FCB-202022/23
20W, 220V, 60Hz
FL20SD
20W䋬D32
FG-1P
ZWS10-12/J
AC100-240V䋬50/60Hz䋬0.3A
DC12V䋬0.85A
AC250V䋬7A䋬76㷄 melt doun
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
ATB-S1176
6㷄
-1㷄
TH-2
30㷄
40㷄
IR11A2E101R
250V, 10A
Over than 10A
HLS112D
AC250V䋬6A
SS160-A15
㪉㪏㪭䇮㪌㪇㪤㪘
SLE6A2-5
㪋㪘䇮㪉㪌㪇㪭㪘㪚
㪈㪊㪏㷄䌾㪈㪉㪈㷄
㪍㪎㷄䌾㪌㪌㷄
㪏㪅㪏㪘
㪍䌾㪈㪋㫊㪼㪺
60µF䋬300VAC
4µF䋬400VAC
SE4-D041N5P
AC220-240V, 3W
FL2-B031C5MP
AC220-240V, 4W
㪎㪊㪅㪏㪮䋬㪉㪊㪇㪭
㪎㪈㪍㪅㪏㱅
10W䋬230V
5290ȍ
2.6W䋬230V
20700ȍ
6.9W䋬230V
7666ȍ
13.2W䋬230V
4008ȍ
G4F-1123T
AC250V䋬20A
DC12V
G4F-1123T
AC250V䋬20A
DC12V
FCB-202022/23
20W, 220/230V, 50Hz
FL20SD
20W䋬D32
FG-1P
ZWS10-12/J
AC100-240V䋬50/60Hz䋬0.3A
DC12V䋬0.85A
AC250V䋬7A䋬76㷄 melt doun
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
502AT
5kȍ 25㷄
ATB-S1176
6㷄
-1㷄
TH-2
30㷄
40㷄
IR11A2E101R
250V, 10A
Over than 10A
HLS112D
AC250V䋬6A
SS160-A15
㪉㪏㪭䇮㪌㪇㪤㪘
SLE6A2-5
㪋㪘䇮㪉㪌㪇㪭㪘㪚
Control specification
1.
Function mode
F01: Setting of High temp. alarm (Default: 5͠)
F02: Setting of Low temp. alarm (Default: -5͠)
F04: Setting of Door alarm (Default: 2 minutes)
F25: Setting of Ring-back time (Default: 30 minutes)
F42: Check of battery setting (Default:000 = without battery)
(Note)
(1) Low temp. alarm thermo activates when the chamber temperature (without load) is
equal or lower than 2͠ to prevent contents being frozen.
(2) Alarm lamp blinks and the buzzer sounds when the inside fan motor is getting out of
order. At the time chamber temperature indication is nearly to the set temperature.
2.
Keys and switches
BUZZER
(1)
(2)
Press this key to be setting mode available with the 1st digit blinks.
Press this key again to memorize the value which you changed.
SET
3.
Control of buzzer and remote alarm
In alarming condition, press this key to stop buzzer sounding and to
turn remote alarm output off, however ALARM lamp keeps blinking.
Press this key again to sound buzzer and to turn remote alarm
output on.
Battery setting check (with MPR-48B)
During power failure, press this key to show the chamber
temperature for 5 seconds if you set ‘001’ in F42 with battery
installed.
Press this key to show E09 without battery.
E09 is also shown when the battery switch is off position with
battery installed, or when you set ‘001’ in F42 with battery installed.
(Scroll key)
In Setting Mode, moves between the first and second places before
the decimal point every time you press this key.
Key Lock mode is available (“L 0” display) if you press this key for
5 seconds.
(Up arrow key)
In Setting Mode, increase by 1 every time you press this key.
Function modes are available (“F00” display) if you press this key
for 5 seconds.
Temperature setting
Setting range
+2͠ ~ +23͠
Display range
-50 ~ +50
How to set
Press the SET key and change to your desired value with
key
and
key. Press SET key to memorize the value and revert to
chamber temperature display.
Unacceptable
If you input the value out of setting range and press SET key,
setting
buzzer tone is emitted to inform the value unacceptable.
11
4.
Key lock
Setting range
How to set
0 (Unlock) or 1 (Lock)
In chamber temperature display, press
key for 5 seconds to
step into Key Lock mode with ‘L _ X’ displayed. (Default: L_0)
Change blinking ‘X’ to your desired value with
key.
Press SET key to memorize the value in non-volatile memory.
Function mode is available with Key Locked.
5.
Function mode
How to set
Unacceptable
setting
6.
In chamber temperature display, press
key for 5 seconds to
step into Function mode with ‘F00’ displayed.
key and
Change blinking 1st digit to your desired value with
key. Press SET key to be Function mode available.
If you input unused function code or F51~F59 and press SET key,
buzzer tone emitted to inform the value unacceptable.
Error codes
Error codes (Self-diagnostic functions)
E01: Temp. sensor is disconnected
E02: Temp. sensor is short circuited
E03: DEF sensor is disconnected
E04: DEF sensor is short circuited
E05: Comp. safe sensor is disconnected
E06: Comp. safe sensor is short circuited
E07: AT sensor is disconnected
E08: AT sensor is short circuited
E09: Battery setting check
E10: Compressor temperature is abnormal
E2P: Memorization of non-volatile memory is failed
Descriptions of error codes
E01: Temp. sensor is disconnected.
E01 and ‘-50’ are alternately displayed.
Buzzer sounds intermittently and remote alarm turns on.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
E02: Temp. sensor is short circuited.
E02 and ‘50’ are alternately displayed.
Buzzer sounds intermittently and remote alarm turns on.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
Chamber temperature is set in 5͠ which is controlled by the
temperature in DEF sensor.
E03: DEF sensor is disconnected.
E03 and chamber temperature are alternately displayed.
Buzzer sounds intermittently and remote alarm turns on.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
12
E04: DEF sensor is short circuited.
E04 and chamber temperature are alternately displayed.
Buzzer sounds intermittently and remote alarm turns on.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
You cannot obtain performance of defrosting correctly during E03
and E04 emitted.
E05: Comp. safe sensor is disconnected.
E05 and chamber temperature are alternately displayed.
Buzzer sounds intermittently and remote alarm turns on.
Compressor turns off during E05 is emitted.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
E06: Comp. safe sensor is short circuited.
E06 and chamber temperature are alternately displayed.
Buzzer sounds intermittently and remote alarm turns on.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
E07: AT sensor is disconnected.
E07 and chamber temperature are alternately displayed.
Buzzer sounds intermittently and remote alarm turns on.
Compressor protection is incorrectly activated during AT sensor is
failed.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
E08: AT sensor is short circuited.
E08 and chamber temperature are alternately displayed.
Buzzer sounds intermittently and remote alarm turns on.
Compressor protection is incorrectly activated during AT sensor is
failed.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
E09: With battery kit (MPR-48B) attached, E09 is emitted for 5 seconds
if you set ‘001’ (battery is attached) in F42 and turn battery switch
off.
With battery kit unattached, E09 is emitted for 5 seconds if you
press ALARM TEST key.
E09 is not emitted in normal operation.
E09 is emitted and buzzer sounds when you attach battery kit and
set ‘000’ (battery is not attached) in F04.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
Alarming condition is not cancelled without you change to ‘001’ in
F42 or disconnect battery kit (battery switch is off position).
13
E10: Compressor temperature is abnormal
E10 and chamber temperature are displayed alternately.
Buzzer sounds intermittently and remote alarm turns on.
H side compressor turns off.
You can stop the buzzer sounding by pressing BUZZER key.
H side compressor turns on when filter sensor temperature –
(minus) ambient temperature is equal or lower than 10͠.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
E2P: Memorization of non-volatile memory is failed.
When you change model code in F17, E2P and chamber
temperature are displayed alternately with buzzer sounds
intermittently and remote alarm turns on if memorization in
non-volatile memory is failed.
You can stop the buzzer sounding and remote alarm operation by
pressing BUZZER key.
Error code priority
High
Low
7.
Highest priority on the damage possibility on contents.
Higher priority on the possibility of high load on the components or
products.
No.1 Temp. sensor (E01, E02)
No.2 DEF sensor (E03, E04)
No.3 Comp. safe sensor (E05, E06)
No.4 AT sensor (E07, E08)
No.5 Compressor abnormal temperature (E10)
No.6 Battery setting check (E09)
No.7 Memorization of non-volatile memory is failed (E2P)
Alarms
High temp. alarm
When the chamber temperature is equal or higher than set
temperature + high temp. alarm set temperature + 0.09, ALARM
lamp and temperature display blink, buzzer sounds intermittently
and remote alarm turns on after delay time elapses.
High temp. alarm set temperature: +5͠ (Default)
Delay time: 15 minutes (Default)
When the chamber temperature is equal or lower than set
temperature, ALARM lamp goes off, temperature display stops
blinking, buzzer stops sounding and remote alarm turns off.
You can cancel the buzzer and remote alarm operation by pressing
BUZZER key during high temp. alarm.
14
Low temp. alarm
When the chamber temperature is equal or lower than set
temperature - low temp. alarm set temperature - 0.09, ALARM lamp
and temperature display blink, buzzer sounds intermittently and
remote alarm turns on after delay time elapses.
High temp. alarm set temperature: -5͠ (Default)
Delay time: 15 minutes (Default)
When the chamber temperature is equal or higher than set
temperature, ALARM lamp goes off, temperature display stops
blinking, buzzer stops sounding and remote alarm turns off.
You can cancel the buzzer and remote alarm operation by pressing
BUZZER key during low temp. alarm.
0͠ alarm
When the chamber temperature is lower than 0.0, ALARM lamp
and temperature display blink, buzzer sounds intermittently, remote
alarm turns on without delay.
When the chamber temperature is equal or higher than 0.0,
ALARM lamp goes off, temperature display stops blinking, buzzer
stops sounding and remote alarm turns off.
You can cancel the buzzer and remote alarm operation by pressing
BUZZER key during 0͠ alarm.
0͠ alarm has the higher priority than low temp. alarm.
Door alarm
When the door is open, DOOR lamp (DP52) is lit.
Buzzer sounds intermittently after delay time elapses.
Buzzer and remote alarm do not activate simultaneously.
Delay time: 2 minutes (Default)
You can cancel the buzzer by pressing BUZZER key and the
buzzer does not sound again.
Power failure alarm
With the battery kit (MPR-48B) is attached and you select ‘001’ in
F42, the unit diagnoses as power failure is occurred once you turn
the battery switch on.
ALARM lamp blinks, buzzer sounds intermittently and remote
alarm turns on.
After retrieves from power failure, the unit continues operation
with the last setting before the power failure occurred and remote
alarm turns off.
You can cancel the buzzer by pressing BUZZER key.
You can check chamber temperature for 5 seconds by pressing
BUZZER key during power failure.
8.
Functions
Auto return
If there are no operations for 90 seconds during temperature
setting, function code setting and Key Lock setting, the unit reverts
to chamber temperature display automatically.
15
Ring back
Buzzer sounds again after delay time elapses even though it stops
sounding by pressing BUZZER key during alarming condition.
This function is to prevent buzzer being inoperative by someone
pressed BUZZER key.
Ring back time is changeable in F25.
Delay time: 30 minutes (Default)
Battery lifespan
(With MPR-48B)
You can check battery lifespan (accumulation time) in F03.
Unit: Annual
(Ex. 2 years and 6 months => Displayed as ’02.5’)
You cannot use this function without you set ‘001’ in F42
beforehand.
‘F-1’ is shown on temperature display if lifespan is over than ’02.8’.
Lifespan reset: Input ‘409’ in F06 and press SET key.
Fan motor lifespan
You can check fan motor lifespan (accumulation time) in F32.
Unit: Annual
(Ex. 5 years and 8 months => Displayed as ’05.8’)
You cannot use this function without you set ‘001’ in F43
beforehand.
‘F-2’ is shown on temperature display if lifespan is over than ’05.6’.
Lifespan reset: Input ‘410’ in F06 and press SET key.
You can check ROM version in F30 which is currently installed in
the unit. (Ex. Ver. 1.00 => Displayed as ‘1.00’)
ROM version
9.
Function Mode
F01:
F02:
F03:
F04:
F06:
F07:
F08:
F12:
F13:
F14:
F15:
F16:
F17:
F25:
F30:
F32:
F33:
F34:
F36:
F42:
F43:
F50:
Function
Setting of high temp. alarm
Setting of low temp. alarm
Display of battery lifespan
Setting of door alarm delay time
Setting of service code
(Initialization of battery and fan motor lifespan)
Zero adjustment of temp. sensor
Zero adjustment of DEF sensor
Display of temperature in temp. sensor
Display of temperature in DEF sensor
Display of temperature in comp. safe sensor
Display of temperature in AT sensor
Display of temperature in fan alarm sensor
Check of model code
(non-volatile memory initialization)
Setting of Ring back time
Display of ROM version
Display of fan motor lifespan
Setting of temperature to start defrosting
Setting of temperature to stop defrosting
Display of frequency of defrosting
Setting check of battery kit
Notice of fan motor lifespan
Setting of temp. alarm delay time
16
Division
General
General
General
General
Service
Service
Service
Service
Service
Service
Service
Service
Service
General
Service
Service
Service
Service
Service
General
Service
Service
How to use function codes
1) In chamber temperature display, press
key for 5 seconds.
2) ‘F00’ is shown on temperature display.
Input your desired function code with
key and
key.
3) Press SET key to be function code available.
Service code ‘384’
You cannot use the function modes specified as ‘Service’ in the above without input
service code ‘384’ prior to use.
Service code is cancelled by input ‘000’ in F06 or turn the power off.
Descriptions of Function codes
F00: Simply passing through.
In ‘F00’ displayed, press SET key to revert to chamber temperature display.
F01: <Function>
<Operation>
Setting of high temp. alarm
Input F01 and press SET key to display ‘005’ (Default).
Change to your desired value with
key and
key
(Range:002~014)
Press SET key to memorize the value and revert to chamber
temperature display.
F02: <Function>
<Operation>
Setting of low temp. alarm
Input F02 and press SET key to display ‘-05’ (Default).
Change to your desired value with
key and
key
(Range: -02~-14)
Press SET key to memorize the value and revert to chamber
temperature display.
F03: <Function>
<Operation>
Display of battery lifespan
Input F03 and press SET key to display F03 and battery
lifespan alternately. Press SET key to revert to chamber
temperature display.
Displayed as ’00.0’ if battery accumulation is equal or less
than 36 days.
F04: <Function>
<Operation>
Setting of door alarm delay time
Input F04 and press SET key to display ‘002’ (Default).
Change to your desired value with
key and
key.
(Range:001~015)
Press SET key to memorize the value and revert to chamber
temperature display.
F06: <Function>
Setting of service code
(Initialization of battery and fan motor lifespan)
Input F06 and press SET key to display ‘000’ (Default).
Change to ‘384’ with
key and
key.
Press SET key to memorize the value and revert to chamber
temperature display. You can use all the function codes.
Input F06 to display ‘384’.
Change to ‘000’ with
key and
key.
Press SET key to memorize the value and revert to chamber
temperature display.
Turning the power on and off is another way is to change the
display to ‘000’. It is not stored in non-volatile memory.
<Operation>
<Cancel>
17
<Reset of battery lifespan>
Step into F06 and input ‘384’ for service code.
Input ‘409’ to initialize battery accumulation time.
Unit reverts to chamber temperature display automatically.
Service code is automatically cancelled after the reset.
<Reset of fan motor lifespan>
Step into F06 and input ‘384’ for service code.
Input ‘410’ to initialize fan accumulation time.
Unit reverts to chamber temperature display automatically.
Service code is automatically cancelled after the reset.
F07: <Function>
<Operation>
To match temperature in temp. sensor to 1/2 chamber air
temperature (Zero adjustment of temp. sensor)
Input service code in F06 prior to the operation.
Input F07 and press SET key to display ’00.0’ (Default).
Change to your desired value with
key and
key.
(Range: -4.9 ~ 04.9)
Press SET key to memorize the value and revert to chamber
temperature display.
(Ex.)
When the set temperature is 5 ͠ and 1/2 chamber air
temperature is 8͠, you should input ’03.0’ in F07 that makes
temperature display change to 8͠ and forcibly cooled to 5͠.
F08: <Function>
<Operation>
Zero adjustment of DEF sensor
Input service code in F06 prior to the operation.
Input F08 and press SET key to display ’00.0’. (Default)
Change to your desired value with
key and
key.
(Range: -4.9 ~ 04.9)
Press SET key to memorize the value and revert to chamber
temperature display.
F12: <Function>
Display of temperature in temp. sensor
(The 1st decimal point is displayed)
Input service code in F06 prior to the operation.
Input F12 and press SET key to display F12 and ‘XX.X’
(current chamber temperature) alternately.
Press SET key to revert to chamber temperature display.
(Ex.)
-22.5͠ = Displayed as ’22.5’
3 digits display, so minus ‘-‘ is not displayed.
In F12 and ‘XX.X’ are alternately displayed, press SET key to
revert to chamber temperature display.
<Operation>
<Cancel>
F13: <Function>
<Operation>
<Cancel>
Display of temperature in DEF sensor
(The 1st decimal point is displayed)
Input service code in F06 prior to the operation.
Input F13 and press SET key to display F13 and ‘XX.X’ (DEF
sensor temperature) alternately.
Press SET key to revert to chamber temperature display.
In F13 and ‘XX.X’ are alternately displayed, press SET key to
revert to chamber temperature display.
18
F14: <Function>
<Operation>
<Cancel>
F15: <Function>
<Operation>
<Cancel>
Display of temperature in compressor safe sensor
(The 1st decimal point is displayed)
Input service code in F06 prior to the operation.
Input F14 and press SET key to display F14 and ‘XX.X’
(comp. safe sensor temperature) alternately.
Press SET key to revert to chamber temperature display.
’99.9’ should be always displayed even if it is over than
99.9͠.
In F14 and ‘XX.X’ are alternately displayed, press SET key to
revert to chamber temperature display.
Display of temperature in AT sensor
(The 1st decimal point is displayed)
Input service code in F06 prior to the operation.
Input F15 and press SET key to display F15 and ‘XX.X’ (DEF
sensor temperature) alternately.
Press SET key to revert to chamber temperature display.
In F13 and ‘XX.X’ are alternately displayed, press SET key to
revert to chamber temperature display.
F17: <Function>
Check of model code
(Non-volatile memory initialization)
<Operation> Input F17 and press SET key to display ‘003’ (MPR-721).
<Non-volatile memory initialization>
Display ‘003’ and press SET key to initialize non-volatile
memory.
Press SET key to revert to chamber temperature display.
Kind of setting
Model code
Zero adjustment value for temp. sensor
Key lock
Temperature to stop defrosting
Set temperature
Set temperature for high temp. alarm
Set temperature for low temp. alarm
Communication ID
Communication mode
Individual set for air circulation alarm temp.
Check of battery setting
Zero adjustment value for DEF sensor
Ring back time
Temp. alarm delay time
Door alarm delay time
Temperature to start defrosting
Temperature to turn compressor on
Temperature to turn compressor off
Notice of fan motor lifespan
19
Default
: 003 (MPR-721)
: 0͠
: OFF (Unlocked)
: 5͠
: 5͠
: 5͠
:-5͠
:000
:000
: OFF (Not individual)
: OFF
: 0͠
: 30 minutes
: 15 minutes
: 2 minutes
: -12͠
: 0.6͠
: -0.4͠
: ON
F25: <Function>
<Operation>
Setting of Ring back (alarm recovery) time
Input F25 and press SET key to display ‘030’ (Default).
Change to your desired value with
key.
(Range:000~060)
Press SET key to memorize the value and revert to chamber
temperature display.
<Ring back time>
000: None
040: 40 minutes
010: 10 minutes
050: 50 minutes
020: 20 minutes
060: 60 minutes
030: 30 minutes
F30: <Function>
<Operation>
Display of ROM version
Input F30 and press SET key to display F30 and ‘X.XX’ (ROM
version) alternately.
Press SET key to revert to chamber temperature display.
(Ex.) Version 1.00 => Displayed as ‘1.00’
F32: <Function>
<Operation>
Display of fan motor lifespan (accumulation period)
Input service code in F06 prior to the operation.
Input F32 and press SET key to display F32 and ‘XX.X’
(accumulation time) alternately.
Press SET key to revert to chamber temperature display.
(Ex.) ’00.0’ = Accumulation period is less than 36days
F33: <Function>
<Operation>
Setting of temperature to start defrosting
Input service code in F06 prior to the operation.
Input F33 and press SET key to display ‘-12’ (Default).
Change to your desired value with
key and
key.
(Range:-5.0~-19.9)
Press SET key to revert to chamber temperature display.
F34: <Function>
<Operation>
Setting of temperature to stop defrosting
Input service code in F06 prior to the operation.
Input F34 and press SET key to display ‘005’ (Default).
Change to your desired value with
key and
key.
(Range:0.1~9.9)
Press SET key to revert to chamber temperature display.
F36: <Function>
<Operation>
Display of frequency of defrosting
Input service code in F06 prior to the operation.
Input F36 and press SET key to display alternately F36 and
frequency of defrosting since the power was supplied.
Press SET key to revert to chamber temperature display.
Display: 999 (Max)
Turn the power off or press
key for 5 seconds to reset
frequency of defrosting.
<Reset>
F42: <Function>
<Operation>
Setting check of battery kit
Input service code in F06 prior to the operation.
Input F42 and press SET key to display ‘000’ or ‘001’.
Change to alternative value with
key.
Press SET key to memorize the value and revert to chamber
temperature display.
000: Battery kit is unattached
001: Battery kit is attached
20
F43: <Function>
<Operation>
Notice of fan motor lifespan
Input service code in F06 prior to the operation.
Input F43 and press SET key to display ‘000’ or ‘001’.
Change to alternative value with
key.
Press SET key to memorize the value and revert to chamber
temperature display.
000: Not notified
001: Notified (Default)
F50: <Function>
<Operation>
Setting of temp. alarm delay time
Input service code in F06 prior to the operation.
Input F50 and press SET key to display ‘015’ (Default).
Change to your desired value with
key and
key.
Press SET key to memorize the value and revert to chamber
temperature display.
000: No delay time
Unused.
Simply passing through with the buzzer tone emitted.
F44~49, 51~59:
10.
Compressor control
Compressor ON and OFF temperature (Differential point)
Compressor ON*
When chamber temperature is equal to set temperature + 0.6͠
Compressor OFF
When chamber temperature is equal to set temperature – 0.4͠
* Unit has 3 minutes delay time since the compressor is turned off, so the compressor is
not turned on even though the unit meets the above condition.
Compressor operation when temp. sensor is malfunction (E01, E02)
When temp. sensor is disconnected (E01) or short circuited (E02), compressor is
controlled by DEF sensor so that unit could keep chamber temperature in 5͠.
DEF sensor temp. to turn compressor ON DEF sensor temp. to turn compressor OFF
7.0͠
0.0͠
Compressor protection
When the condensing fan locks, the compressor should stop running in the following
condition to prevent discharge pressure from being increased.
Condition to protect compressor
Compressor stops running when the temperature in comp. safe sensor is equal or higher
than 52͠.
Compressor starts running again when the temperature in comp. safe sensor is equal or
lower than AT+10͠.
11.
Defrosting
Mechanism
DEF sensor detects the temperature in the evaporator pipe to have being conducted
current to the heater attached in the evaporator.
During defrosting evaporator, compressor is turned off and chamber temperature and
‘dF’ are alternately displayed.
21
Defrosting by the temperature in evaporator
When DEF sensor temperature in evaporator is equal or lower than -12͠, the unit starts
defrosting.
When DEF sensor temperature in evaporator is equal or higher than 5͠, the unit stops
defrosting.
Defrosting by the compressor ON time
Unit forcibly starts defrosting if it meets the following conditions both (1) and (2).
(1) When the compressor keeps operating for 3 hours, and
(2) When DEF sensor temperature in evaporator is lower than 0͠
The unit stops defrosting when DEF sensor temperature in evaporator is equal or higher
than 5͠.
When the DEF sensor temperature in evaporator is higher than 0͠ and the compressor
keeps operating for 4 hours without defrosting, frequency of compressor ON time is
reset.
Forcible stop of defrosting
When the chamber temperature is higher than set temperature +7.0͠ and DEF sensor
temperature is higher than the temperature to start defrosting, unit forcibly stops
defrosting.
When this sequence repeats twice, unit never stops defrosting forcibly.
Frequency of defrosting
Frequency of forcible defrosting since the power is supplied is memorized.
You can check the frequency in F36.
12.
Compressor delay time
Compressor turns on with 9 seconds of delay since the power was supplied (reset).
13.
Remote alarm
Remote alarm activates during alarming condition.
(1) In normal condition
OPEN between #1 and #2 at CN3
CLOSE between #1 and #3 at CN3
(2) In alarming condition
CLOSE between #1 and #2 at CN3
OPEN between #1 and #3 at CN3
22
14.
Lamp operation
<Display PCB>
DP51:
ALARM
(Red)
Blinks in alarming condition
DP52:
DOOR
(Red)
Lit when door ajar
<Main PCB>
DP1:
(Orange)
DP2:
(Green)
DP3:
(Red)
DP4:
(Yellow)
15.
Alarming operation
Lit: Not in alarming condition
Goes off: High/Low temp. alarm (15min. of delay), sensor error,
Power failure
Compressor operation
Lit: Compressor turns on
Goes off: Compressor turns off
DEF heater operation
Lit: DEF heater turns on
Goes off: DEF heater turns off
Compressor protection relay operation
Lit: Compressor turns on
Goes off: Compressor forcibly turns off
Examples of digital displays
Chamber temp.
㩷 㩷 5.5㷄
Decimal point
(Chamber temp.)㩷 㩷 㩷 㩷 7.7
Set temp.
㩷 㩷 㩷 5㷄
Sensor offset㩷 㩷
㩷 -5.0
Function 㩷 㩷 㩷
F03
Forcible defrosting 㩷 㩷 㩷 dF
Service code㩷 㩷 㩷
384
Error code
Set value
㩷 㩷 㩷 004
Key lock mode
㩷 㩷 㩷 L_0
16.
Buzzer tone
Alarming condition
Key operation
Input value memorization
Unacceptable input
Door alarm
㩷 㩷 㩷 㩷 E01
: Intermittent
: Click tone
: Click tone
: error tone (1 second)
: Intermittent (shorter interval than other alarms)
23
Connections on PCB
Connector
Connects to
Switching power supply
䋤1 +12VDC
䋤3 GND
#1 - #6: Communication board,
MTR-480 (Option)
Remote alarm terminal
䋤1 COM
䋤2 N.O.(Current is not conducted)
䋤3 N.C.(Current is not conducted)
Output for remote alarm contact
䊶㩷OPEN between 䋤 1 and 䋤 2 , CLOSE
between #1 and #3 in normal condition
when the current is conducted.
CN4
#1 - #2: Temp. control relay
#5 - #6: Comp. protected relay
To turn Temp. relay on and off.
To protect compressor.
CN5
Display circuit board 䋨CN51䋩
To connect with switches.
CN6
Display circuit board 䋨CN52䋩
To connect with LEDs.
CN7
Door switch and sensors
䋤1䋭䋤2: Door switch
䋤3䋭䋤4: Temp. sensor
䋤5䋭䋤6: DEF sensor
To input from door switch and sensors
CN8
#1 - #2: Battery switch MPR-48B(Option)
To connect with Battery switch.
To supply the power during power failure
alarm.
CN1
CN2
CN3
24
Usage
To supply the power to Temp. control
PCB.
Specifications of sensor
Following shows temperature and resistance characteristic in temperature sensor (502AT).
Temperature
Resistance
Temperature
Resistance
Temperature
Resistance
㧔͠㧕
(kȍ㧕
㧔͠㧕
(kȍ㧕
㧔͠㧕
㧔kȍ㧕
-50
154.5
-7
17.92
12
8.17
-45
116.5
-6
17.16
13
7.85
-40
88.85
-5
16.43
14
7.55
-35
68.15
-4
15.74
15
7.29
-30
52.84
-3
15.08
16
6.99
-25
41.19
-2
14.45
17
6.73
-20
32.43
-1
13.86
18
6.48
-19
30.92
0
13.29
19
6.24
-18
29.50
1
12.74
20
6.01
-17
28.14
2
12.22
25
5.00
-16
26.87
3
11.72
30
4.18
-15
25.65
4
11.25
35
3.51
-14
24.51
5
10.80
40
2.96
-13
23.42
6
10.37
45
2.51
-12
22.39
7
9.96
50
2.14
-11
21.41
8
9.57
55
1.83
-10
20.48
9
9.20
60
1.57
-9
19.58
10
8.84
-8
18.73
11
8.49
25
Mounting of compressor terminal cover
䋨1䋩
㪩
㪚
Fixing metal
㪪
1.Hang fixing metal on both holes of the
terminal and move it to the right.
䋨2䋩
Terminal cover
Upside
2.Align terminal cover upside up and put
lead wires into the cover.
䋨3䋩
3. Connect PTC and OLR with lead wires
correctly as Wiring diagram (P.7) indicates.
PTC
OLR
26
䋨4䋩
Terminal cover
(Partially cut for explanation)
PTC
Squarish hole
Projection inside Terminal cover
䋨5䋩
4.Align the projection of terminal cover with
the squalish hole of PTC, and fit PTC to the
terminal cover. (See picture (4))
䋨6䋩
Ready to mount on compressor
27
䋨7䋩
5.Mount terminal cover on the compressor
terminal without space between them. Move
the fixing metal back to original position and
catch it by 2 projections on the terminal
cover.
Projection
䇭Follow the procedure vice versa for the removal of terminal cover.
28
Parts layout
Control panel
䇼Front cover removed䇽
Light switch
Glow starter
Remote alarm terminal (with cover)
䇼Ceiling of chamber䇽
Temp. sensor
䇼Back side䇽
Condensing fan
䇼Ceiling䇽
Compressor
Breaker switch
29
䇼Inside of ceiling䇽
䇼Inside of ceiling䇽
Duct
Thermostat cover
Electric BOX
Fan motor
Thermostat
for low temp. alarm
䇼Inside of Electric BOX䇽
Main PCB
Switching power supply
䇼Inside of Electric BOX䇽
Cover
Temp. control relay
(G4F-1123T䋩
Ballast
Comp. protected relay
䋨G4F-11123T)
Starting cap.
Running cap.
30
Test data
Temperature of components (Reference data on maximum cooling)
Ambient temperature 30㷄 Ambient temperature 35㷄
Compressor case bottom
Discharge pipe
Dryer inlet
Evaporator inlet
Evaporator outlet
Header outlet
Suction pipe
Air temperature at center of
chamber
Discharge pressure : Pd (Mpa)
Suction pressure : Ps (Mpa)
50Hz
46.1
66.7
33.6
-18.9
-19.0
-20.0
17.9
60Hz
45.0
68.0
33.4
-20.8
-21.2
-22.2
16.9
50Hz
51.7
74.7
38.9
-15.8
-16.1
-17.0
21.9
60Hz
51.0
77.6
39.5
-17.3
-17.9
-18.9
21.4
-9.5
-11.9
-9.1
-11.1
1.000
0.145
0.997
0.133
1.139
0.159
1.160
0.147
31
Pulldown speed(AT35㷄䋩
Internal temperature䋨㷄䋩
40
50Hz
30
60Hz
20
10
0
-10
0
1
2
3
4
5
6
7
8
9
10
11
Time scale(hour)
Pulldown pressure(AT35㷄)
1.6
Peak䋨60Hz) 1.516MPa
1.4
Stabilized䋨50Hz) 1.161MPa
Pd,Ps(Mpa)
1.2
Peak䋨50Hz) 1.464MPa
1.0
Stabilized䋨60Hz) 1.145MPa
50HzPd
0.8
50HzP䌳
0.6
60HzPd
0.4
Balance pressure 0.45MPa
60HzP䌳
Peak䋨50Hz) 0.460MPa
0.2
Stabilized䋨50Hz) 0.159MPa
Peak䋨60Hz) 0.470MPa
0.0
0
1
2
3
Stabilized䋨60Hz) 0.148MPa
4
5
6
7
Time scale(hour)
8
9
10
11
Current-Input(AT35㷄䋩
115V60Hz_Current(A)
7
230V50Hz_Current(A)
Peak䋨60Hz) 492W
6
115V60Hz_Input(W)
500
230V50Hz_Input(W)
5
400
4
Peak(50Hz) 438W
300
3
Peak(60Hz) 4.5A
200
2
100
1
Peak(50Hz) 2.2A
0
0
0
1
2
3
4
5
6
7
Time scale(hour)
32
8
9
10
11
Input(W)
Current(A)
600
33
㽽
㽸
㽳
㽼
㽷
㽲
㾀
㽻
㽶
㽿
㽺
㽵
㽾
㽹
㽴
㪣㫆㪸㪻㩷㩷㫃㫀㫅㪼
Chamber Temperature Uniformity (Reference Data)
50%H
5%H
5%H
H
5
14
䊶䊶䊶㪜㪽㪽㪼㪺㫋㫀㫍㪼㩷㪸㫉㪼㪸
㪣㫆㫎㪼㫉㩷㫊㪿㪼㫃㪽
12
15
9
8
4
3
13
㪤㫀㪻㪻㫃㪼㩷㫊㪿㪼㫃㪽
10
㪬㫇㫇㪼㫉㩷㫊㪿㪼㫃㪽
11
7
6
2
1
Note:This data does not represent a guarantee of product
䋼Conditions䋾
Ambient temperature: 20/30㷄
Unloaded
䋼Distribution data䋾
Temperature of the cycle in each area (SV=5㷄䇮air temperature)
Unit:㷄
Ambient temp. 20㷄
Maximum
㽲
㽳
㽴
㽵
㽶
㽷
㽸
㽹
㽺
㽻
㽼
㽽
㽾
㽿
㾀
Average
7.1
7.3
7.0
7.1
7.0
7.1
6.7
7.0
6.9
6.4
7.2
6.8
7.0
7.4
6.3
-
50Hz
60Hz
Middle of
Middle of
Differential Maximum Minimum
Differential
Minimum
cycle
cycle
4.3
5.7
±1.4
7.0
4.1
5.6
±1.5
3.6
5.5
±1.9
7.2
3.5
5.5
±1.9
4.1
5.6
±1.5
6.9
4.1
5.6
±1.4
3.1
5.2
±2.0
7.0
3.0
5.2
±2.0
2.3
4.8
±2.4
7.0
2.2
4.8
±2.4
2.9
5.2
±2.1
7.1
3.0
5.2
±2.1
3.0
5.0
±1.9
6.7
2.8
4.9
±2.0
1.9
4.4
±2.6
6.9
1.8
4.4
±2.6
1.4
4.3
±2.8
6.8
1.3
4.3
±2.8
2.4
4.6
±2.0
6.3
2.3
4.6
±2.0
1.7
4.6
±2.6
7.1
1.5
4.6
±2.5
2.0
4.5
±2.4
6.7
1.8
4.5
±2.5
2.1
4.7
±2.3
7.0
1.8
4.7
±2.3
1.4
4.6
±2.8
7.3
1.3
4.6
±2.7
1.8
4.1
±2.2
6.4
1.8
4.1
±2.3
4.9
4.8
Unit:㷄
Ambient temp. 30㷄
50Hz
㽲
㽳
㽴
㽵
㽶
㽷
㽸
㽹
㽺
㽻
㽼
㽽
㽾
㽿
㾀
Average
Maximum
Minimum
7.4
7.5
7.2
7.3
7.0
7.3
6.7
6.9
6.7
6.4
7.0
6.7
7.0
7.3
6.8
-
4.5
3.8
4.1
3.3
2.4
3.0
2.9
2.0
1.4
2.5
1.7
2.0
2.2
1.4
1.6
-
60Hz
Middle of
Middle of
Differential Maximum Minimum
Differential
cycle
cycle
5.9
±1.5
7.4
4.5
6.0
±1.5
5.6
±1.9
7.5
4.0
5.8
±1.8
5.7
±1.6
7.3
4.4
5.9
±1.5
5.2
±2.0
7.3
3.4
5.4
±2.0
4.6
±2.3
7.1
2.5
4.8
±2.3
5.2
±2.2
7.3
3.3
5.5
±2.0
4.8
±1.9
6.9
3.1
5.0
±1.9
4.2
±2.5
7.0
2.1
4.5
±2.5
4.0
±2.7
6.9
1.6
4.3
±2.7
4.4
±2.0
6.5
2.7
4.7
±1.9
4.3
±2.7
7.2
1.9
4.6
±2.6
4.3
±2.4
6.8
2.1
4.5
±2.4
4.5
±2.5
7.2
2.2
4.8
±2.4
4.3
±3.0
7.4
1.7
4.6
±2.8
4.1
±2.7
7.0
1.7
4.4
±2.6
4.8
5.0
-
䋼Amount of power consumption䋾
Amount of power consumption when driving at cy (SV=5㷄䋩
Unit䋺kWh/day
Ambient temp. 20㷄
Ambient temp. 30㷄
50Hz
60Hz
50Hz
60Hz
110V
5.74
6.62
115V
6.04
6.91
220V
5.40
5.73
5.95
6.65
230V
5.79
6.32
240V
6.00
6.89
-
34
35
㪫㪼㫄㫇㪅䋨㷄䋩
㪫㪼㫄㫇㪅䋨㷄䋩
㪈㪇
㪉㪇
㪫㫀㫄㪼䋨㪤㫀㫅㪅䋩
㪊㪇
㪋㪇
㪇
㪉
㪋
㪍
㪏
㪈㪇
㪇
㪈㪇
㪌㪇㪟㫑㩷㪪㪭㪔㪌㷄䇭㪘㪫㪊㪇㷄
㪉㪇
㪫㫀㫄㪼䋨㪤㫀㫅㪅䋩
㪌㪇㪟㫑㩷㪪㪭㪔㪌㷄䇭㪘㪫㪉㪇㷄
㪊㪇
㪋㪇
㽶
㽻
㾀
㪇
㪉
㪋
㪍
㪏
㪈㪇
㪇
㪇
㪇
㪋
㪍
㪉
㽶
㽻
㾀
㪏
㪈㪇
㪉
㪋
㪍
㪏
㪈㪇
㪫㪼㫄㫇㪅䋨㷄䋩
㪫㪼㫄㫇㪅䋨㷄䋩
㪇
㪇
㪈㪇
㪈㪇
㪍㪇㪟㫑㩷㪪㪭㪔㪌㷄䇭㪘㪫㪊㪇㷄
㪉㪇
㪫㫀㫄㪼䋨㪤㫀㫅㪅䋩
㪍㪇㪟㫑㩷㪪㪭㪔㪌㷄㩷㪘㪫㪉㪇㷄
㪉㪇
㪫㫀㫄㪼䋨㪤㫀㫅㪅䋩
㪊㪇
㪊㪇
㪋㪇
㪋㪇
㽶
㽻
㾀
㽶
㽻
㾀
Disposal of your product
FOR EU USERS
The symbol mark and recycling systems described below apply to EU countries and do not
apply to countries in other areas of the world.
Your SANYO product is designed and manufactured with high quality materials and
components which can be recycled and/or reused.
The symbol mark means that electrical and electronic equipment, batteries and
accumulators, at their end-of-life, should be disposed of separately from your household
waste.
Note:
If a chemical symbol is printed beneath the symbol mark, this chemical symbol means that
the battery or accumulator contains a heavy metal at a certain concentration. This will be
indicated as follows: Hg: mercury, Cd: cadmium, Pb: lead
In the European Union there are separate collection systems for used electrical and
electronic equipment, batteries and accumulators.
Please, dispose of them correctly at your local community waste collection/recycling centre.
Please, help us to conserve the environment we live in!
36
Instruction manual
䊶㩷This section is extracted and printed from Instruction Manual.
䊶㩷If you find out “Refer to page 䃂䃂” in them, this page means not page in Service manual
but page in the lower corner of each page in the extract from Instruction Manual.
This page number is not corresponded with serial number in Service manual.
䊶㩷Please note the extracted Instruction Manual which corresponds to the initial unit
production, so the contents may be revised in future.
37
INSTRUCTION MANUAL
MPR-721
MPR-721R
Pharmaceutical Refrigerator
MPR-721R
38
CONTENTS
INTRODUCTION
P. 2
PRECAUTIONS FOR SAFE OPERATION
P. 3
ENVIRONMENTAL CONDITIONS
P. 7
REFRIGERATOR COMPONENTS
P. 8
Inside of front panel
P. 10
Control panel
P. 11
INSTALLATION SITE
P. 12
INSTALLATION
P. 13
START-UP OF UNIT
P. 14
STOCK OF CONTAINERS
P. 15
CHAMBER TEMPERATURE SETTING
P. 16
KEY LOCK FUNCTION
P. 16
ALARM TEMPERATURE SETTING
P. 17
SETTING OF DELAY OF DOOR ALARM
P. 18
SETTING OF RINGBACK OF ALARM BUZZER
P. 19
OPERATION CHECK AFTER RECOVERY
P. 19
DEFROST CYCLES
P. 20
REMOTE ALARM TERMINAL
P. 20
ALARMS & SAFETY FUNCTIONS
P. 21
ROUTINE MAINTENANCE
Cleaning of cabinet
P. 22
Cleaning of evaporating tray
P. 22
Replacement of fluorescent lamp
P. 23
Replacement of glow starter
P. 23
TROUBLESHOOTING
P. 24
DISPOSAL OF UNIT
P. 25
OPTIONAL COMPONENTS
1
Automatic temperature recorder
P. 30
Attachment of recorder MTR-0621LH
P. 31
Attachment of recorder MTR-G04A or MTR-G04C
P. 32
Attachment of battery kit MPR-48B
P. 33
Attachment of interface board MTR-480C
P. 34
Setting for battery before starting
P. 35
SPECIFICATIONS
P. 36
PERFORMANCE
P. 36
SAFETY CHECK SHEET
P. 37
39
INTRODUCTION
Ŷ Read this manual carefully before using the appliance and follow the instructions for safety operation.
Ŷ Sanyo never guarantee any safety if the appliance is used for any objects other than intended use or
used by any procedures other than those mentioned in this manual.
Ŷ Keep this manual in an adequate place to refer to it as necessary.
Ŷ The contents of the manual will be subjected to change without notice due to the improvement of
performance or functions.
Ŷ Contact Sanyo sales representative or agent if any page of the manual is lost or page order is incorrect.
Ŷ Contact Sanyo sales representative or agent if any point in this manual is unclear or if there are any
inaccuracies.
Ŷ No part of this manual may be reproduced in any form without the expressed written permission of
Sanyo.
40
2
PRECAUTIONS FOR SAFE OPERATION
It is imperative that the user complies with this manual as it contains
important safety advice.
Items and procedures are described so that you can use this unit correctly and safely.
If the precautions advised are followed, this will prevent possible injury to the user and
any other person.
Precautions are illustrated in the following way:
WARNING
Failure to observe WARNING signs could result in a hazard to personnel
possibly resulting in serious injury or death.
CAUTION
Failure to observe CAUTION signs could result in injury to personnel and
damage to the unit and associated property.
Symbol shows;
this symbol means caution.
this symbol means an action is prohibited.
this symbol means an instruction must be followed.
Be sure to keep this manual in a place accessible to users of this unit.
< Label on the unit >
This mark is labeled on the cover in which the electrical components of high voltage
are enclosed to prevent the electric shock.
The cover should be removed by a qualified engineer or a service personnel only.
3
41
PRECAUTIONS FOR SAFE OPERATION
WARNING
Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to
rain water.
Only qualified engineers or service personnel should install the unit.
unqualified personnel may cause electric shock or fire.
The installation by
Install the unit on a sturdy floor and take an adequate precaution to prevent the unit from
turning over. If the floor is not strong enough or the installation site is not adequate, this may result
in injury from the unit falling or tipping over.
Never install the unit in a humid place or a place where it is likely to be splashed by water.
Deterioration of the insulation may result which could cause current leakage or electric shock.
Never install the unit in a flammable or volatile location. This may cause explosion or fire.
Never install the unit where acid or corrosive gases are present as current leakage or electric
shock may result due to corrosion.
Always ground (earth) the unit to prevent electric shock. If the power supply outlet is not
grounded, it will be necessary to install a ground by qualified engineers.
Never ground the unit through a gas pipe, water main, telephone line or lightning rod. Such
grounding may cause electric shock in the case of an incomplete circuit.
Connect the unit to a power source as indicated on the rating label attached to the unit. Use
of any other voltage or frequency other than that on the rating label may cause fire or electric shock.
Never store volatile or flammable substances in this unit if the container cannot be sealed. These
may cause explosion or fire.
Do not insert metal objects such as a pin or a wire into any vent, gap or any outlet on the unit.
This may cause electric shock or injury by accidental contact with moving parts.
Use this unit in safe area when treating the poison, harmful or radiate articles. Improper use
may cause bad effect on your health or environment.
Turn off the power switch (if provided) and disconnect the power supply to the unit prior to any
repair or maintenance of the unit in order to prevent electric shock or injury.
Do not touch any electrical parts (such as power supply plug) or operate switches with a wet
hand. This may cause electric shock.
42
4
PRECAUTIONS FOR SAFE OPERATION
WARNING
Ensure you do not inhale or consume medication or aerosols from around the unit at the time of
maintenance. These may be harmful to your health.
Never splash water directly onto the unit as this may cause electric shock or short circuit.
Never put containers with liquid on the unit as this may cause electric shock or short circuit when
the liquid is spilled.
Never bind, process, or step on the power supply cord, or never damage or break the power
supply plug. A broken supply cord or plug may cause fire or electric shock.
Do not use the supply cord if its plug is loose.
Such supply cord may cause fire or electric shock.
Never disassemble, repair, or modify the unit yourself. Any such work carried out by an
unauthorized person may result in fire, or electric shock or injury due to a malfunction.
Disconnect the power supply plug if there is something wrong with the unit.
abnormal operation may cause electric shock or fire.
Continued
When removing the plug from the power supply outlet, grip the power supply plug, not the cord.
Pulling the cord may result in electric shock or fire by short circuit.
Disconnect the power supply plug before moving the unit. Take care not to damage the power
cord. A damaged cord may cause electric shock or fire.
Disconnect the power plug when the unit is not used for long periods. Keeping the connection
may cause electric shock, current leakage, or fire due to the deterioration of insulation.
If the unit is to be stored unused in an unsupervised area for an extended period, ensure that
children do not have access and that doors cannot be closed completely.
The disposal of the unit should be accomplished by appropriate personnel. Remove doors to
prevent accidents such as suffocation.
Do not put the packing plastic bag within reach of children as suffocation may result.
5
43
PRECAUTIONS FOR SAFE OPERATION
CAUTION
Use a dedicated power source (a dedicated circuit with a breaker) as indicated on the rating label
attached to the unit. A branched circuit may cause fire resulting from abnormal heating.
Connect the power supply plug to the power source firmly after removing the dust on the plug.
A dusty plug or improper insertion may cause a heat or ignition.
Never store corrosive substances such as acid or alkali in this unit if the container cannot be
sealed. These may cause corrosion of inner components or electric parts.
Check the setting when starting up of operation after power failure or turning off of power
switch. The stored items may be damaged due to the change of setting.
Be careful not to tip over the unit during movement to prevent damage or injury.
Prepare a safety check sheet when you request any repair or maintenance for the safety of service
personnel.
44
6
ENVIRONMENTAL CONDITIONS
This equipment is designed to be safe at least under the following conditions (based on the IEC 61010-1):
1. Indoor use;
2. Altitude up to 2000 m;
3. Ambient temperature 5oC to 40oC
4. Maximum relative humidity 80% for temperature up to 31oC decreasing linearly to 50% relative
humidity at 40oC;
5. Mains supply voltage fluctuations not to exceed ±10% of the nominal voltage;
6. Other supply voltage fluctuations as stated by the manufacture;
7. Transient overvoltages according to Installation Categories (Overvoltage Categories) II; For mains
supply the minimum and normal category is II;
8. Pollution degree 2 in accordance with IEC 60664.
7
45
REFRIGERATOR COMPONENTS
19
1
2
3
4
6
18
5
7
17
16
15
8
14
13
9
12
11
10
18
MPR-721
6
17
13
MPR-721R
Back side
46
8
REFRIGERATOR COMPONENTS
1. Front cover:
fluorescent lamp.
Open this cover when connecting the remote alarm or replacing glow stater for
2. Control panel: The chamber temperature and alarms can be set through the keys on the control
panel. The temperature indicator and lamps are also provided on the control panel. Refer to page 11.
3. Light switch: This switch is used for turning the fluorescent lamp off and on.
4. Space for automatic temperature recorder:
component) can be mounted here. See page 28.
An automatic temperature recorder (optional
5. Fluorescent lamp: 20 W lamp. See page 21 for replacement.
6. Circuit breaker (right back side): This disconnects the power when any abnormality is occurred and
over current is rushed. Rated AC 250 V, 10 A.
7. Lock: Turn the key counterclockwise through 180o to securely lock the door.
8. Glass window: The window may have condensation in high humidity environment. Wipe off the
condensation with a soft dry cloth.
9. Handle: Always hold the handle when opening/closing the door.
10. Condensation tray:
occasionally.
The condensation on the door is accumulated in this tray. Wipe off the water
11. Leveling foot: Adjust the height of the leveling feet by turning the screw bolts until the unit is level.
12. Castor: When installing the unit the castors can be raised from the ground by using the leveling feet
above.
13. Shelf (MPR-721 only): Items to be stored in the chamber must be placed on the shelves. The
maximum storage weight for each shelf is 50 kg. Do not put stored items directly onto the interior floor of
the chamber. See page 15.
Drawer (MPR-721R only): Items to be stored in the chamber must be placed on the drawers. The
maximum storage weight for each drawer is 40 kg.
14. Access port: This port allows temperature measurement cables to enter the chamber from outside.
A total of three (3) ports are provided; left side, right side and top.
15. Air exhaust vent: Do not block this vent. If this vent is blocked, temperature regulation will become
unstable. Do not place stored items in the path of the cold air.
16. Air intake vent: Do not block this vent. If this vent is blocked, temperature regulation will become
unstable. Do not insert a finger or any foreign object into this vent as there is danger from the internal fan.
17. Evaporating tray (back side): Defrost water from the evaporator accumulates on the tray and
evaporates into the atmosphere. See page 20 for cleaning.
18. Fixture (back side): These keep the adequate space between the unit and wall and also can be
used for fixing the unit. See page 13.
19. Battery for power failure alarm MPR-48B (option):
9
47
MPR-48B (option) is installed. See page 31.
REFRIGERATOR COMPONENTS
Inside of front cover
1
2
1. Glow starter (with cover): This is for the fluorescent light. It is recommended that the glow starter
is also replaced when the fluorescent light is replaced. Refer to page 21.
2. Remote alarm terminal: This is used to connect the unit to an exterior alarm to notify users of any
malfunction. Refer to page 18.
48
10
REFRIGERATOR COMPONENTS
Control panel
1
2
3
7
1. Door alarm lamp (DOOR):
2. Alarm lamp (ALARM):
6
5
4
This lamp is lit when the door is opened.
This lamp flashes during an alarm condition.
3. Digital temperature indicator:
temperature.
This indicator shows the present chamber temperature or set
4. Numerical value shift key ( ): Pressing this key in the set mode causes the numerical value to
scroll up. ON-OFF of key lock can be selected by pressing this key in the key lock mode. See page
16.
5. Digit shift key ( ): Pressing this key in the set mode alters the digit to be set. Key lock is
available by pressing this key for more than 5 seconds in the temperature display mode. See page 16.
6. Set key (SET): Temperature setting mode is initiated by pressing this key. Once the key is pressed,
the digit to be changed will flash. Pressing this key again after setting the desired temperature stores
the set temperature in the memory.
7. Alarm buzzer stop key (BUZZER): To silence the audible alarm, press this key. Press it once
again to reactivate the alarm.
11
49
INSTALLATION SITE
To operate this unit properly and to obtain maximum performance, install the unit in a location with the
following conditions:
Ŷ A location not subjected to direct sunlight
Do not install the unit under direct sunlight. Installation in a location subjected to direct sunlight cannot
obtain the intended performance.
Ŷ A location with adequate ventilation
Leave at least 10 cm around the unit for ventilation. Poor ventilation will result in a reduction of the
performance and consequently the failure.
Ŷ A location away from heat generating sources
Avoid installing the unit near heat-emitting appliances such as a heater or a boiler etc.
decrease the intended performance of the unit.
Heat can
Ŷ A location with little temperature change
Install the unit under stable ambient temperature. The allowable ambient temperature is between -5 and
+35oC.
Ŷ A location with a sturdy and level floor
Always install the unit on a sturdy and level floor. The uneven floor or tilted installation may cause failure
or injury. Install the unit in stable condition to avoid the vibration or noise. Unstable condition may
cause vibration or noise.
WARNING
Install the unit on a sturdy floor. If the floor is not strong enough or the installation site is not
adequate, this may result in injury from the unit falling or tipping over.
Select a level and sturdy floor for installation. This precaution will prevent the unit from tipping.
Improper installation may result in water spillage or injury from the unit tipping over.
Ŷ A location not prone to high humidity
Install the unit in the ambient of 80% R.H. or less humidity. Installation under high humidity may cause
current leakage or electric shock.
WARNING
Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to
rain water.
Never install the unit in a humid place or a place where it is likely to be splashed by water.
Deterioration of the insulation may result which could cause current leakage or electric shock.
Ŷ A location without flammable or corrosive gas
Never install the unit in a flammable or volatile location. This may cause explosion or fire or may result
in the current leakage or electric shock by the corrosion of the electrical components.
Ŷ A location without the possibility of anything fall
Avoid installing the unit in the location where anything can fall down onto the unit. This may cause the
breakdown or failure of the unit.
50
12
INSTALLATION
1. Removing the packaging materials and tapes
Remove all transportation packaging materials and
tapes. Open the doors and ventilate the unit. If the
outside panels are dirty, clean them with a diluted
neutral dishwashing detergent. (Undiluted detergent
can damage the plastic components. For the dilution,
refer to the instruction of the detergent.) After the
cleaning with the diluted detergent, always wipe it off
with a wet cloth. Then wipe off the panels with a dry
cloth.
2. Adjusting the leveling feet
Extend the leveling feet by rotating them
counterclockwise to contact them to the floor.
Ensure the unit is level. See Fig. 1.
3. Fixing the unit
Two fixtures are attached to the rear of the frame.
Fix the frame to the wall by attaching a rope or chain
between the wall and the fixtures.
If holes can be drilled in the wall, drill a 10.5 mm
diameter hole (Fig. 2) and fix the unit by using the
special bolt-nut supplied. This bolt-nut can only be
used on a concrete wall.
Leveling foot
Fig. 1
Bolt (provided)
45 mm
10.5 mm
Fig. 2
4. Ground (earth)
The ground (earth) is for preventing the electric shock in the case of the electrical insulation is somehow
degraded. Always ground the unit at the time of installation.
WARNING
Use a power supply outlet with ground (earth) to prevent electric shock. If the power supply outlet is
not grounded, it is necessary to install a ground by qualified engineers.
Never ground the unit through a gas pipe, water main, telephone line or lightning rod. Such
grounding may cause electric shock in the case of an incomplete circuit.
13
51
START-UP OF UNIT
Follow the procedures for the initial and consequent operations of the unit.
1. Connect the power cord to the dedicated outlet with appropriate rating.
CAUTION
If the unit is unplugged or the power to the unit is interrupted, do not restart the unit for at least 5 minutes.
This protects the compressor.
2. On start-up, the alarm buzzer sometimes operates. In this case, stop the buzzer by pressing the
alarm buzzer stop key (BUZZER).
3. Set the chamber temperature to 5oC.
4. Allow the chamber temperature to fall to 5oC. Check the chamber temperature on the temperature
indicator.
5. Turn on the fluorescent light switch to check the light. After checking, turn off the switch if the light is
not necessary.
6. Set the desired temperature. When the chamber temperature gets to the set temperature, begin
slowly placing items into the chamber to minimize the temperature rise.
CAUTION
The chamber is refrigerated by the forced circulation of cooled air inside the chamber. Ensure that the
air intake and exhaust vents are not blocked. Adequate space should be provided between the items
inside the unit to allow air circulation.
If any electrical equipment is used in the chamber, the chamber temperature cannot be maintained due to
the heat emission from the equipment. Refer to the table below when you use any equipment.
(at ambient temperature of 35oC)
Heat load in chamber
Lowest chamber temperature
100 W
2oC
200 W
9oC
300 W
18oC
52
14
STOCK OF CONTAINERS
Always distribute items so as not to disturb the air circulation in the chamber. Disruption of the
air flow can cause items to freeze or reduce the uniformity of the chamber temperature.
Never put any articles on the top of the unit.
Air intake vent
Do not block this vent with containers. If this vent
becomes blocked, temperature regulation becomes
unstable. Do not place paper or vinyl near the vent as
they may be sucked into the fan.
Air exhaust vent
Do not block this vent with containers as this can
impede air circulation. Items stored near the exhaust
air vent can freeze when the refrigerator is operating
at temperature settings lower than 5oC.
Fan
Air exhaust vent
Air intake vent
Load line
Stock space
Cooling air
Load line
In this refrigerator, storage space is limited to allow
the passage of cool air around the chamber. The
label “load line” is fixed to both sides of the chamber.
Always stock items within this line.
Load line
Side view
CAUTION
Never store corrosive substances in this unit. This may lead to damage to the inner components or
electric parts.
15
53
CHAMBER TEMPERATURE SETTING
Table 1 shows the basic procedure for setting the chamber temperature. Perform key operations in the
sequence indicated in the table. The example in the table is based on the assumption that the desired
temperature is 4oC.
Note: The unit is set at the factory with a chamber temperature of 5oC.
Table 1 Basic operation sequence (Example: Chamber set temperature 4oC)
Description of operation
Key operated
----
1
Turn the power switch ON.
2
Press set key.
3
Press numerical value shift key and
scroll the figure to 4.
4
Press set key.
Indication after operation
The current chamber temperature is
displayed.
SET
The first digit is flashed.
When pressed, the figure of settable
digit increases.
SET
Set temperature is memorized and the
current chamber temperature is
displayed.
Note:
The temperature set mode returns to the temperature display mode automatically when 90 seconds has
passed without any key operation. In this case, the chamber temperature setting is not accepted.
The available set range of chamber temperature is between 2 and 23oC. The partial freezing may
occurred if the set temperature is lower than 3oC.
KEY LOCK FUNCTION
This unit is provided with a key lock function. When the key lock is ON, change of temperature setting
through the key pad is not available. The key lock is set in OFF at the factory.
Display
Mode
Function
L0
Key lock is OFF
Enable to change of temperature setting
L1
Key lock is ON
Disable to change of temperature setting
Table 2 Procedure for key lock setting (change from key lock OFF to key lock ON)
Description of operation
Key operated
----
1
Indication after operation
The current chamber temperature is
displayed.
2
Press digit shift key for 5 seconds.
The first digit is flashed.
3
Press numerical value shift key and
scroll the figure to 1.
When pressed, the figure of settable
digit increases.
4
Press set key.
SET
54
The key lock is set to ON.
The current chamber temperature is
displayed.
16
ALARM TEMPERATURE SETTING
This unit is provided with both high and low temperature alarms. The temperature at which the alarm is
activated may be changed.
The available set range for high temperature alarm is between +2oC and +14oC and -2oC and -14oC for
low temperature alarm against the chamber temperature.
Note: The temperature alarm is set at r5oC of the set temperature at the factory.
Display
Mode
Function
F01
High temperature alarm set
See Table 5 on page 19
F02
Low temperature alarm set
See Table 5 on page 19
As an example, Table 3 shows the procedure to set the high temperature alarm so that the alarm can
activate when the chamber temperature is 3oC higher than the set temperature.
Table 4 shows the procedure to set the low temperature alarm so that the alarm can activate when the
chamber temperature is 3oC lower than the set temperature.
Table 3 Procedure for setting high temperature alarm
Description of operation
1
2
3
4
Key operated
----
Press numerical value shift key for
5 seconds.
Press numerical value shift key and
scroll the figure to 1.
Press set key.
5
Set the temperature to 003 with the
digit shift key and numerical value
shift key.
6
Press set key.
Indication after operation
The current chamber temperature is
displayed.
The first digit is flashed.
SET
SET
When pressed, the figure of settable
digit increases.
The first digit is flashed.
Pressing the key shifts the digit which
can be set.
When pressed, the figure of settable
digit increases.
Alarm temperature is memorized and
the current chamber temperature is
displayed.
Table 4 Procedure for setting low temperature alarm
Description of operation
1
2
3
17
Key operated
----
Press numerical value shift key for
5 seconds.
Press numerical value shift key and
scroll the figure to 2.
4
Press set key.
5
Set the temperature to -03 with the
digit shift key and numerical value
shift key.
6
Press set key.
Indication after operation
The current chamber temperature is
displayed.
The first digit is flashed.
When pressed, the figure of settable
digit increases.
SET
SET
55
The first digit is flashed.
Pressing the key shifts the digit which
can be set.
When pressed, the figure of settable
digit increases.
Alarm temperature is memorized and
the current chamber temperature is
displayed.
SETTING OF DELAY OF DOOR ALARM
The door check indicator is light when the door is opened, and the alarm buzzer sounds with some delay
to notice the door opening.
The delay time (between lighting of the door check indicator and activation of the alarm buzzer) can be
changed. Set an appropriate delay time according to the condition of use to prevent the rise of chamber
temperature resulting from inadequate door close.
„ Setting range of delay time: 1 and 15 minutes
„ Initial setting (factory setting): 2 minutes
Table 5 Procedure for setting of delay of door alarm (Change the delay time to 3 min. from 2
min.)
Description of operation
Key operated
-----
1
Indication after operation
The current chamber temperature is
displayed.
2
Press up arrow key for 5 seconds.
F00 is displayed and the first digit
blinks.
3
Press up arrow key 4 times.
The display is changed to F04 from
F00.
4
Press set key.
5
Press up arrow key and scroll the
figure to 3.
The display is changed to 003 from
002.
Press set key.
Delay time is memorized and the
current chamber temperature is
displayed.
6
The current setting (002) is displayed
and the first digit blinks.
SET
SET
Note:
The setting mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation (auto-return function). In this case, the setting is not accepted.
56
18
SETTING OF RINGBACK OF ALARM BUZZER
The alarm buzzer operates again after certain period (ringback time) even if the alarm buzzer is silenced
by pressing the alarm buzzer stop key (BUZZER) when the same alarm status is continued. Set the
ringback time to prevent the misidentify the alarm status.
„ Setting range of ringback time: between 10 and 60 minutes (10 minutes interval)
Display of setting: between 010 and 060 (000 display shows no ringback)
„ Initial setting (factory setting): 30 minutes
The alarm buzzer will not recover once the alarm buzzer is silenced by pressing the alarm buzzer stop
key (BUZZER) when the ringback time is set to 000. However, the alarm buzzer will operate if other
alarm status is detected.
Table 6 Procedure for setting of ringback of alarm buzzer (Change the ringback time to 20 min.
from 30 min.)
Description of operation
Key operated
-----
1
Indication after operation
The current chamber temperature is
displayed.
2
Press up arrow key for 5 seconds.
F00 is displayed and the first digit
blinks.
3
Press up arrow key 5 times.
The display is changed to F05 from
F00.
4
Press scroll key once.
The second digit blinks.
5
Press up arrow key twice.
The display is changed to F25 from
F05.
6
Press set key.
7
Press up arrow key and scroll the
figure to 2.
The display is changed to 020 from
030.
Press set key.
Ringback time is memorized and
the current chamber temperature is
displayed.
8
The current setting (030) is displayed
and the second digit blinks.
SET
SET
Note:
㩵 The setting mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation (auto-return function). In this case, the setting is not accepted.
㩵 The setting should be performed during normal operation, not during alarm status.
OPERATION CHECK AFTER RECOVERY
After recovery from a power failure, the unit will resume operation automatically with the setting before
power failure. Accordingly, there is no need for re-set however, always check the running status after
recovery.
㩵 The set value is memorized by nonvolatile memory during power failure.
19
57
DEFROST CYCLES
There is no need for routine defrosting of the unit as this occurs automatically as follows:
㩵 Cycle defrost
To keep the chamber temperature stable, the refrigeration compressor is cycled on and off. During OFF
period any frost which has accumulated on the evaporator is melted by energizing a defrost heater. This
will not have any discernible effect on the chamber temperature.
㩵 Forced defrost
When the ambient humidity is high, or a large amount of damp product is being stored inside the chamber,
there is a possibility that cycle defrost may not be enough to remove all of the frost on the evaporator. In
this case, a forced defrost cycle can be initiated.
When the unit is operating under a forced defrost cycle, the current chamber temperature and dF is
displayed alternately on the digital temperature display.
Once the forced defrost cycle is completed, normal operation resumes.
CAUTION
The unit may collect excessive frost on the evaporator if it is installed in high temperature and high
humidity location. For example, the unit starts to defrost once a week with 2oC setting in the ambient of
35oC and 80% R.H. The chamber temperature goes up to approximately 10oC temporarily during
defrosting.
REMOTE ALARM TERMINAL
The remote alarm terminal is located inside the front cover. The alarm is generated from this terminal.
Contact capacity is DC 30 V, 2 A.
between COM. and N.O.
between COM. and N.C.
At normal
Open
Close
At abnormal
Close
Open
Note:
The alarm is actuated when the power failure or the
power cord is disconnected from the outlet.
The remote alarm is silenced by pressing the buzzer
stop key (BUZZER) as the remote alarm is operated in
conjunction with the buzzer.
Connecting terminal
58
20
ALARMS & SAFETY FUNCTIONS
This unit has the alarms and safety functions shown in Table 7, and also self diagnostic functions.
Table 7 Alarms and safety functions
Alarm & Safety
High temperature
alarm
Situation
Indication
Alarm lamp is flashed.
set temperature +2oC or up to +14oC.
Chamber temperature is flashed. 15 minutes delay.
If the chamber temperature deviates from the
Low temperature
alarm
Buzzer
If the chamber temperature deviates from the
Alarm lamp is flashed.
set temperature -2oC or up to -14oC.
If the chamber temperature is lower than 0oC.
Chamber temperature is flashed.
Intermittent tone with
Remote alarm with 15
15 minutes delay.
minutes delay.
Intermittent tone
Remote alarm
protection
Over-cooling
protection
Power failure
alarm
When the chamber temp. is higher than 30 C.
(Reset when the chamber temp. is lower than
-----
heater, defrost heater,
drain pipe heater OFF
When the chamber temp. is lower than -1oC.
(Reset when the chamber temp. is higher than -----
-----
Compressor OFF
-----
-----
Remote alarm.
Alarm lamp blinks.
Intermittent tone
Alarm status.
6oC)
When the power to the unit is disconnected.
At power failure.
(with MPR-48B)
If the power supply cord is unplugged.
Door alarm
When the door is open.
Key lock
Inside fan, drain pan
-----
25oC)
Power failure alarm
Auto-return
minutes delay.
Intermittent tone with
o
Over-heat
Safety operation
Remote alarm with 15
Door check lamp is lit.
When there is no key pressing in each setting
Chamber temperature is
mode for 90 seconds.
displayed.
When the key lock is “ON”.
-----
Intermittent tone with
2 minutes delay.
---------
Alarm lamp is flashed.
If the thermal sensor is disconnected.
E01 and 50oC (or -50oC) are
mode.
Change of setting is
disable.
Unit keeps continuous
running.
Alarm lamp is flashed.
E02 and 50oC (or -50oC) are
Finishing of each setting
Remote alarm.
Intermittent tone
displayed alternately.
If the thermal sensor is short-circuited.
-----
Remote alarm.
Intermittent tone
displayed alternately.
Unit keeps continuous
running.
Alarm lamp is flashed.
If the defrost sensor is disconnected.
E03 and chamber temp. are
Intermittent tone
Remote alarm.
Intermittent tone
Remote alarm.
Intermittent tone
Remote alarm.
Intermittent tone
Remote alarm.
Intermittent tone
Remote alarm.
Intermittent tone
Remote alarm.
-----
Set value memorized
-----
-----
displayed alternately.
Alarm lamp is flashed.
If the defrost sensor is short circuited.
E04 and chamber temp. are
displayed alternately.
Sensor abnormality
Alarm lamp is flashed.
If the compressor sensor is disconnected.
E05 and chamber temp. are
displayed alternately.
Alarm lamp is flashed.
If the compressor sensor is short-circuited.
E06 and chamber temp. are
displayed alternately.
Alarm lamp is flashed.
If the ambient temp. sensor is disconnected.
E07 and chamber temp. are
displayed alternately.
Alarm lamp is flashed.
If the ambient temp. sensor is short-circuited.
E08 and chamber temp. are
displayed alternately.
Memory back-up
When power failure or disconnected the
power cord.
-----
Setting check
When the battery switch is turned ON without
E09 and chamber temp. is
(with MPR-48B)
setting after attachment.
displayed alternately.
Condenser temp.
In the event of failure of fan motor for cooling
E10 and chamber temp. are
abnormality
the compressor
displayed alternately.
Remote alarm.
Intermittent tone
Compressor of high stage
side stops.
Note:
The remote alarm is silenced by pressing the alarm buzzer stop key (BUZZER) as the remote alarm is
operated in conjunction with the buzzer, except for the power failure alarm.
When more than two alarm conditions occur simultaneously, the lowest number error code has priority on
the error display.
After a power failure, the unit will resume operation with the set value that was in place before power
failure occurred.
The over-cooling protection may activate when the set temperature is 2oC. In this case, the chamber
temperature will rise to 6oC, but this is not malfunction.
21
59
ROUTINE MAINTENANCE
WARNING
Always disconnect the power supply to the unit prior to any repair or maintenance of the unit in
order to prevent electric shock or injury.
Ensure you do not inhale or consume medication or aerosols from around the unit at the time of
maintenance. These may be harmful to your health.
CAUTION
Always wear dry gloves to protect hands at the time of maintenance. Failure to wear gloves may
result in injury from edges and corners.
Cleaning of cabinet
㩵 Clean the unit once a month. Regular cleaning keeps the unit looking new.
㩵 Use a dry cloth to wipe off small amounts of dirt on the outside and inside of the unit and all
accessories. If the outside panels are dirty, clean them with a diluted neutral dishwashing detergent.
(Undiluted detergent can damage the plastic components. For the dilution, refer to the instruction of the
detergent.) After the cleaning with the diluted detergent, always wipe it off with a wet cloth. Then wipe
off the cabinet or accessories with a dry cloth.
㩵 Never pour water onto or into the unit. Doing so can damage the electric insulation and cause failure.
㩵 The compressor and other mechanical parts are completely sealed. This unit requires absolutely no
lubrication.
Cleaning of evaporating tray
This unit is provided with the evaporating tray on the
back.
1. Four screws of the fixing bracket are removed.
2. The evaporating tray downwards to removed.
Fixing
bracket
3 Wash the evaporating tray and replace.
Screw
Evaporating tray
60
22
ROUTINE MAINTENANCE
Replacement of fluorescent lamp
Follow the procedure below when replacing a fluorescent lamp.
horizontally at upper front of the cabinet.
The fluorescent lamp is located
1. Turn off the light switch and disconnect the power
supply plug of the refrigerator.
2. Move the stored items on the top shelf and in the top
drawer.
3. Pull the fluorescent lamp downwards from the stopper
together with the lamp cover and wiring. [Fig. 1]
Fig.
4. Remove the water-proof cover with the wiring on the
both sides of the lamp cover.
5. Take out the fluorescent lamp and insert a new
fluorescent lamp into the lamp cover. [Fig. 2]
(fluorescent lamp; FL20SD)
Water-proof rubber
Socket
6. Replace the water-proof cover on the both sides of the
lamp cover and then replace the lamp cover to the stopper.
Fig.
7. Replace the stored items on the top shelf and in the top
drawer and connect the power supply cord to the outlet.
Replacement of glow starter
A glow starter is located inside the front cover.
Water-proof rubber
Socket
1. Disconnect the power supply plug.
2. Remove the water-proof rubber.
3. Remove the glow starter and replace with a new
one.
4. Replace the water-proof rubber.
23
61
TROUBLE SHOOTING
If the unit malfunctions, check out the following before calling for service.
Malfunction
If nothing operates even
when switched on
Check/Remedy
㩵 There is a power failure.
㩵 The circuit breaker is activated.
㩵 The unit is not connected to the power supply.
When no key operation is
available
㩵 The key lock is set in ON (L 1).
The alarm device is
activated
< On start-up >
㩵 The temperature in the unit does not match the set value.
< In use >
㩵 The door was kept opened for a long time.
㩵 The temperature setting was changed.
㩵 The containers of high temperature (load) were put in the unit.
When unit does not get
cold enough
In these cases, alarm is removed automatically by running the unit for
several hours.
㩵 A large amount of items or warm product was put in the unit.
㩵 The air exhaust vent is blocked up with containers.
㩵 The unit is in direct sunlight.
㩵 The door is frequently opened.
㩵 There is a nearby heat source.
㩵 The ambient temperature is too high.
㩵 The door is not securely closed.
㩵 The heat source is put in the unit.
㩵 The door seal is damaged or foreign substance is inserted between
door gaskets.
Note:
If the malfunction is not eliminated after checking the above items, or the malfunction is not shown in the
above table, contact Sanyo sales representative or agent.
62
24
DISPOSAL OF UNIT
WARNING
If the unit is to be stored unused in an unsupervised area for an extended period ensure that children
do not have access and doors cannot be closed completely.
The disposal of the unit should be accomplished by appropriate personnel. Always remove
doors to prevent accidents such as suffocation.
25
63
DISPOSAL OF UNIT
Note:
This symbol mark and recycle system are applied only to EU countries
and not applied to the countries in the other area of the world.
Waste Electrical and Electronic Equipment (WEEE) Directive-2002/96/EC
(English)
Your SANYO product is designed and manufactured with high quality materials and components which
can be recycled and reused.
This symbol means that electrical and electronic equipment, at their end-of-life, should be disposed of
separately from your household waste.
Please dispose of this equipment at your local community waste collection/recycling centre.
In the European Union there are separate collection systems for used electrical and electronic products.
Please help us to conserve the environment we live in!
(German)
Ihr SANYO Produkt wurde entworfen und hergestellt mit qualitativ hochwertigen Materialien und
Komponenten, die recycelt und wiederverwendet werden können.
Dieses Symbol bedeutet, daß elektrische und elektronische Geräte am Ende ihrer Nutzungsdauer von
Hausmüll getrennt entsorgt werden sollen.
Bitte entsorgen Sie dieses Gerät bei Ihrer örtlichen kommunalen Sammelstelle oder im Recycling Centre.
In der Europäischen Union gibt es unterschiedliche Sammelsysteme für Elektrik- und Elektronikgeräte.
Helfen Sie uns bitte, die Umwelt zu erhalten, in der wir leben!
64
26
DISPOSAL OF UNIT
(French)
Votre produit Sanyo est conçu et fabriqué avec des matèriels et des composants de qualité supérieure qui
peuvent être recyclés et réutilisés.
Ce symbole signifie que les équipements électriques et électroniques en fin de vie doivent être éliminés
séparément des ordures ménagères.
Nous vous prions donc de confier cet équipement à votre centre local de collecte/recyclage.
Dans l’Union Européenne, il existe des systèmes sélectifs de collecte pour les produits électriques et
électroniques usagés.
Aidez-nous à conserver l’environnement dans lequel nous vivons !
Les machines ou appareils électriques et électroniques contiennent fréquemment des matières qui, si elles
sont traitées ou éliminées de manière inappropriée, peuvent s’avérer potentiellement dangereuses pour la
santé humaine et pour l’environnement.
Cependant, ces matières sont nécessaires au bon fonctionnement de votre appareil ou de votre machine.
Pour cette raison, il vous est demandé de ne pas vous débarrasser de votre appareil ou machine usagé
avec vos ordures ménagères.
(Spanish)
Los productos SANYO están diseñados y fabricados con materiales y componentes de alta calidad, que
pueden ser reciclados y reutilizados.
Este símbolo significa que el equipo eléctrico y electrónico, al final de su ciclo de vida, no se debe
desechar con el resto de residuos domésticos.
Por favor, deposite su viejo “televisor” en el punto de recogida de residuos o contacte con su
administración local.
En la Unión Europea existen sistemas de recogida específicos para residuos de aparatos eléctricos y
electrónicos.
Por favor, ayúdenos a conservar el medio ambiente!
27
65
DISPOSAL OF UNIT
(Portuguese)
O seu produto SANYO foi concebido e produzido com materiais e componentes de alta qualidade que
podem ser reciclados e reutilizados.
Este símbolo significa que o equipamento eléctrico e electrónico no final da sua vida útil deverá ser
descartado separadamente do seu lixo doméstico.
Por favor, entregue este equipamento no seu ponto local de recolha/reciclagem.
Na União Europeia existem sistemas de recolha separados para produtos eléctricos e electrónicos
usados.
Por favor, ajude-nos a conservar o ambiente em que vivemos!
(Italian)
Il vostro prodotto SANYO è stato costruito da materiali e componenti di alta qualità, che sono riutilizzabili o
riciclabili.
Prodotti elettrici ed elettronici portando questo simbolo alla fine dell’uso devono essere smaltiti
separatamente dai rifiuti casalinghi.
Vi preghiamo di smaltire questo apparecchio al deposito comunale.
Nell’Unione Europea esistono sistemi di raccolta differenziata per prodotti elettrici ed elettronici.
Aiutateci a conservare l’ambiente in cui viviamo!
66
28
DISPOSAL OF UNIT
(Dutch)
Sanyo producten zijn ontwikkeld en gefabriceerd uit eerste kwaliteit materialen, de onderdelen kunnen
worden gerecycled en weer worden gebruikt.
Het symbool betekent dat de elektrische en elektronische onderdelen wanneer deze vernietigd gaan
worden , dit separaat gebeurt van het normale huisafval.
Zorg ervoor dat het verwijderen van de apparatuur bij de lokaal erkende instanties gaat gebeuren.
In de Europese Unie wordt de gebruikte elektrische en elektronische apparatuur bij de daarvoor wettelijke
instanties aangeboden.
Alstublieft help allen mee om het milieu te beschermen.
(Swedish)
Din SANYO produkt är designad och tillverkad av material och komponenter med hög kvalitet som kan
återvinnas och återanvändas.
Denna symbol betyder att elektriska och elektroniska produkter, efter slutanvändande, skall sorteras och
lämnas separat från Ditt hushållsavfall.
Vänligen, lämna denna produkt hos Din lokala mottagningstation för avfall/återvinningsstation.
Inom den Europeiska Unionen finns det separata återvinningssystem för begagnade elektriska och
elektroniska produkter.
Vänligen, hjälp oss att bevara miljön vi lever i!
29
67
OPTIONAL COMPONENTS
Automatic temperature recorder
An automatic temperature recorder is available for this refrigerator as an optional accessory. If an
automatic temperature recorder is required, contact your Sanyo dealer.
Recorders available are the MTR-0621LH and the MTR-G04A or MTR-G04C. Please note that each
recorder needs a different fixture. See the following for the details.
Temperature recorder
MTR-0621LH
Type
30 days (split chart type)
MTR-G04A (AC 100 to 150 V)
MTR-G04C (AC 200 to 240 V)
7 days (circular chart type)
7 days (circular chart type)
Space for battery kit for
power failure alarm
(MPR-48B)
68
Recording range
o
-6 to + 20 C
Recorder fixture
MPR-S30
o
MPR-S7
o
MPR-S7
-10 to + 40 C
-10 to + 40 C
Space for automatic
temperature
30
OPTIONAL COMPONENTS
Attachment of recorder MTR-0621LH
1. Follow the instruction manual provided with the
temperature recorder and attach the recorder to the
fixture MPR-S30.
Cove
2. Open the aperture for the recorder on the front top
of the unit by removing the locating screw and remove
the cover by pushing the shaft on both sides outwards.
(Fig. 1)
Shaf
Fig. 1
3. Attach the recorder to the front cover with the
screw.
4. Remove the black rubber caps (inside and outside)
on the access port located at the top corner of the unit
and take the insulation out of the access port.
Senso
5. Pass the recorder sensor into the chamber through
the access port. (Fig. 2)
6. Fix the recorder sensor to the fan cover located at
the top of the chamber with the binder provided. (Fig.
3)
Fig. 2
7. Route the capillary on the top of the chamber and
fix it at two points with the provided clips and screws.
(Fig. 4)
8. Replace the insulation in the access port.
Binde
9. Make a cut on the rubber caps so that the capillary
can pass the caps and place them back on the access
port (inside and outside). (Fig. 5)
Rubber
Fig. 3
Capillar
Clip
&
Fig. 5
Fig. 4
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69
OPTIONAL COMPONENTS
Attachment of recorder MTR-G04A or MTR-G04C
1. Follow the instruction manual provided with the
temperature recorder and attach the recorder to the
fixture MPR-S7.
Cove
2. Open the aperture for the recorder on the front top
of the unit by removing the locating screw and remove
the cover by pushing the shaft on both sides outwards.
(Fig. 6)
Shaf
Fig. 6
3. Remove the black rubber caps (inside and outside)
on the access port located at the top corner of the unit
and take the insulation out of the access port.
4. Pass the recorder sensor into the chamber through
the access port. (Fig. 7)
Senso
5. Fix the recorder sensor to the fan cover located at
the top of the chamber with the binder provided. (Fig.
8)
Fig. 7
6. Route the capillary on the top of the chamber and
fix it at two points with the provided clips and screws.
(Fig. 9)
7. Replace the insulation in the access port.
Binde
8. Make a cut on the rubber caps so that the capillary
can pass the caps and place them back on the access
port (inside and outside). (Fig. 10)
Rubber
Capillar
Fig. 8
Fig. 10
9. Bind the lead wire on the right upper side of the unit
with the provided band.
Clip & screw
10. Remove the connector cap located on the left side
and then connect the recorder connector.
Fig. 9
11. Attach the recorder on the front cover with a
screw.
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32
OPTIONAL COMPONENTS
Attachment of battery kit MPR-48B
The alarm lamp blinks and the alarm buzzer sounds to notice the power failure when a battery for power
failure alarm is installed. For the installation of the battery for power failure alarm, a battery kit
(MPR-48B), an optional component is necessary. A battery for power failure alarm is included in the
battery kit.
㩵 Contact Sanyo sales representative or agent for the installation of the battery kit (MPR-48B).
1. Remove the top cover on the top of the products by
unscrewing four screws. (The battery kit for power failure
alarm is installed on top of the products.)
Harness
Clip
2. Release the harnesses from the clip fixed to the back of
the top cover. [Fig. 1]
3. Pass the harnesses through the bottom opening of the
battery box and set the battery box on the control panel of
the refrigerator top so that four screw holes can be aligned.
[Fig. 1]
㩵 The battery box should be located with the battery switch
Fig. 1
Battery
faced to the refrigerator front.
4. Put the battery on the left of the battery box. [Fig. 2]
5. Put the battery fixture over the battery and fix the battery
box and battery fixture by four screws. [Fig. 3]
Battery switch
Clip
Battery box
Fig. 2
Screw
Screw
Battery fixture
Fig. 3
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71
OPTIONAL COMPONENTS
6. Connect the harness to the battery connector and
battery switch [Fig. 3] and bind the harnesses by the clip
on the battery fixture. [Fig. 2]
7. Cover the opening beside the battery switch with the top
cover removed in procedure 1 (four screws). The harness
in no use is bound by the clip on the back of the top cover.
To the MTR-480C
To the battery
8. Put the battery box cover over the battery box and fix the
battery box cover with screws (three screws on the right
and left). [Fig. 5]
To the battery switch
9. Perform the setting for battery through the keys on the
control panel of refrigerator. Refer to the procedure on
the next page “Setting for battery before starting”
Battery box cover
Fig. 4
Top cover
10. Switch on the battery switch on the battery box.
<front view>
Fig. 5
Attachment of interface board MTR-480C
Install MTR-480C by the next process.
1. Remove the battery box cover on the battery box (Fig.5).
2. The connector for MTR-480C (Fig.4) is connected to the
connector of RS485 (Fig.6).
3. Cover the opening beside the battery switch with the top
MTR-480C (four screws).
Fig. 6
Connector
4. Replace the top cover.
Fig. 7
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34
OPTIONAL COMPONENTS
Setting for battery before starting
Always perform the setting shown below after the installation of battery for power failure alarm, an
optional component (MPR-48B).
The chamber temperature and “E09” is displayed on the temperature display alternately if the battery
switch is turned on without following procedure.
㩵 Turn off the battery switch, perform the following setting, and turn on the battery switch again if “E09” is
displayed on the temperature display.
Description of operation
1
Indication after operation
The current chamber temperature is
displayed.
-----
2
Press numerical value shift key for
5 seconds.
F00 is displayed and the first digit
blinks.
3
Press numerical value shift key
twice.
The display is changed to F02 from
F00.
4
Press digit shift key once.
The second digit blinks.
5
Press numerical value shift key 4
times.
The display is changed to F42 from
F02.
6
Press set key.
7
Press numerical value shift key and
scroll the figure to 1.
The display is changed to 001 from
000.
Press set key.
The setting is memorized and
the current chamber temperature is
displayed.
8
35
Key operated
The current setting (000) is displayed
and the first digit blinks.
SET
SET
73
SPECIFICATIONS
Name
Pharmaceutical Refrigerator
Model
MPR-721
MPR-721R
External dimensions
W770 x D830 x H1955 (mm)
Internal dimensions
W650 x D710 x H1500 (mm)
Effective capacity
684 L
671 L
Exterior
Painted steel
Interior
Painted steel
Door
Double layer pair glass/steel plate, automatic closing mechanism
Insulation
Rigid polyurethane foamed-in place
Shelf
Hard steel wire on polyethylene coating
4 pcs. (Max. load; 50 kg/shelf)
-----
-----
Painted steel
5 pcs. (Max. load; 40 kg/drawer)
Drawer
Access port
Top side, Left side, Right side, Inner diameter 30 mm
Compressor
Hermetic type, Output; 200 W
Condenser
Wire and tube type
Evaporator
Fin and tube type
Refrigerant
R-134a
Internal heater
153 W
Temperature controller
Microprocessor control system
Temperature display
Digital display
Alarm
High temperature, Low temperature, Door, Power failure, Sensor
Remote alarm contact
Allowable contact capacity: DC 30 V, 2 A
Memory back-up
Nonvolatile static memory
Fluorescent lamp
White light 20 W (FL20SD) x 1 (Glow starter; FG-1P)
Accessories
1 set of key, 2 sets of bolt, 2 nylon clips, 2 binders
Weight
Optional component
174 kg
193 kg
Automatic temperature recorder (MTR-0621LH). Recorder fixture (MPR-S30)
Automatic temperature recorder (MTR-G04A/MTR-G04C). Recorder fixture (MPR-S7)
Battery kit for power failure alarm (MPR-48B). Interface board (MTR-480C)
NoteDesign or specifications will be subject to change without notice.
PERFORMANCE
2 to 14oC (ambient temperature; -5 to 0oC, no load)
2 to 23oC (ambient temperature; 0 to 35oC, no load)
Cooling performance
2 to 23oC
Temperature control range
Power source
110V
60Hz
115V
60Hz
220V
60Hz
220V
50Hz
230V
50Hz
240V
50Hz
Rated power consumption
330W
340W
330W
280W
305W
305W
Noise level
41 dB [A] (background noise; 20 dB)
Maximum pressure
1516 kPa
Note The unit with CE mark complies with EC directives 89/336/EEC, 93/68/EEC and 73/23/EEC.
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36
CAUTION
Please fill in this form before servicing.
Hand over this form to the service engineer to keep for his and your safety.
Safety check sheet
1. Refrigerator contents :
Risk of infection:
Risk of toxicity:
Risk from radioactive sources:
‫غ‬Yes
‫غ‬No
‫غ‬Yes
‫غ‬Yes
‫غ‬Yes
‫غ‬No
‫غ‬No
‫غ‬No
(List all potentially hazardous materials that have been stored in this unit.)
Notes :
2. Contamination of the unit
Unit interior
No contamination
Decontaminated
Contaminated
Others:
‫غ‬Yes
‫غ‬No
‫غ‬Yes
‫غ‬Yes
‫غ‬Yes
‫غ‬No
‫غ‬No
‫غ‬No
3. Instructions for safe repair/maintenance of the unit
‫غ‬Yes
‫غ‬No
a) The unit is safe to work on
‫غ‬Yes
‫غ‬No
b) There is some danger (see below)
Procedure to be adhered to in order to reduce safety risk indicated in b) below.
Date :
Signature :
Address, Division :
Telephone :
Product name :
Model :
Pharmaceutical
MPR-721
Refrigerator
MPR-721R
Serial number :
Please decontaminate the unit yourself before calling the service engineer.
37
75
Date of Installation :
1