Ariston MSZ 701 NF HB (T) User manual

1. EXTERNAL VIEWS...................................................................................................2
1-1. EXTERNAL SIZE.2
1-2. NAME OF PARTS 4
3-1.Display 7
3-2.Temperature control of freezer compartment (FC) 10
3-3. Temperature control of refrigerature compartment (RC) 12
3-4. Control of each mode 14
3-5. Defrosting Cycle 17
3-6. Defroting Mode 19
3-7. Error Display 20
3-8/-9/-10. Forced Defrosting / Initial Defrosting / Buzzer of Alarm 23
3-11/-12/-13. Explanation After Delivery / Prevention of Compressor Restart / Back Up Function 24
3-14. Delay Function of Electric Compartments 25
3-15/ -16/-17. Hombar Heater / Control of Interior Lights / Demonstration 26
3-18/-19. Regulation of R-sensor On/Off Point / Summary of Function 27
3-20. Automatic Icemaker 28
3-21. Dispenser Control Function 31
2. SPECIFICATIONS.....................................................................................................6
3. OPERATION AND FUNCTIONS ......................................................................... 7
4. Circuit Operation...............................................................................................................33
4-1. Power Circuit 33
4-2. SMPS Movement Wave 34
4-3. Sensors 36
4-4. Relay Function 37
4-5. Fan Function 38
5-1. Wiring Diagram 39
5-2. Circuit Diagram of Main PCB 40
5-3. Circuit Diagram of Front PCB 41
5. Diagram ........................................................................................... 39
42
6. Installation Guide
6-1. Installation Preparation 42
6-2. If the refrigerator can not enter the door 43
6-3. Refrigerator Leveling & Door Adjustment 45
6-4. Water Line Installation 46
1
C O N T E N T S
 SAFETY AND PRECAUTION 
1) For starters, be sure to check any chances of the leakage of electricity
2) You could handle a part in the vicinity of electricity after unplugging
3) You should put on rubber glovers to prevent an electric shock on operation test
4) Make sure the rated current, voltage, capacity before using an instrument
5) Keep your wet hands away from the metal goods in the freezer compartment not to be frostbitten
6) Be careful not to let water to permeate the electric part in the machine room
...............................................................................................................
48
7. Exploded View
7-1. MSZ 701 NF HB (T) / MSZ 702 NF HB (T) 48
7-2. MSZ 701 NF (T) / MSZ 702 NF (T) 60
...............................................................................................................

2
1. EXTERNAL VIEWS
1-1. EXTERNAL SIZE
MSZ 70* NF HB (T)

MSZ 70* NF (T)
3

4
1-2. NAME OF EACH PART
MSZ 70* NF HB (T)
7
18
9
2
10
311
16
412
513
4
15
15. Refrigerator case
16. Refreshment room(Pocket)
13. Movable Egg case
14. Refrigerator pocket
5. Freezer pocket 11. Chilled case
6. Freezer case
12. Refrigerator shelf
3. Water/Ice Dispenser 9. Refrigerator light(A)
4. Freezer shelf 10. Wine holder
7. Dairy pocket
Freezer Compartment
Refrigerator Compartment
2. Freezer light
8. Deodorizer
1. Ice cubes storage case
6

5
MSZ 701/702 NF (T)
7
18
9
2
10
311
412
513
6 4
15
Freezer Compartment
Refrigerator Compartment
1. Ice cubes storage case
7. Dairy pocket
14. Refrigerator pocket
15. Refrigerator case
5. Freezer pocket
6. Freezer case 11. Chilled case
12. Refrigerator shelf
13. Movable Egg case
2. Freezer light
8. Deodorizer
9. Refrigerator light(A)
10. Wine holder
3. Water/Ice Dispenser
4. Freezer shelf

6
2. SPECIFICATIONS
FREEZER
REFRIGERATOR
TOTAL
WIDTH
DEPTH
HEIGHT
REFRIGERANT R134a
COOLING SYSTEM
DEFROST SYSTEM
DEFORST CONTROL
339
Automatic Start & Stop
190
EXTERNAL
DIMENSION (mm)
COOLING & CONTROL
SYSTEM
513
928
801
1808
Fin Evaporator Forced
Fan Cooling System
NET WEIGHT (kg)
Spec
MODEL NAME
Item
119 121
174
365
556
191
ISO Storage Volume (ℓ)
ISO Gross Volume (ℓ)
FREEZER
REFRIGERATOR
TOTAL

7
3. OPERATION AND FUNCTIONS
3-1. DISPLAY
INPUT CONTROL OBJECT
Front PCB button
freezer set, fridge set
super freeze, super cool
water/cubed ice/crushed ice
ice maker lock/reset water filter
FCP LED
CONTENTS REMARKS
1. Normal Operation
1) Temperature control of Freezer/Refrigerator
- Initial mode : Freezer & Refirgerator Room
2) super Freeze, super cool LED -> OFF
3) fuzzy, air care LED -> ON
4) water LED -> ON, cubed Ice/crushed Ice LED -> OFF
5) ice maker lock/reset water filter LED -> OFF

8
OPERATION AND FUNCTIONS
CONTENTS
2."freezer set" button
1) Temperature control of Freezer compartment
7 step mode of successive temperature mode.
2)
Initial mode by power input: "MID".
Letters are indicated on 88 Display LED.
Temperature Change : Low (Low-Mid) Mid (Mid-High1) (Mid-High2) (Mid-High3) High
Temp.indication:
3. "super freeze" button
When this mode is chosen, the lamp (super freeze) is ON.
4. " fridge set" button
1) Temperature control of Refrigerator compartment
2) 5 steps of successive temperature mode
Initial mode by power input : "MID"
Letters are indicated on 88 Display LED.
Temperature change : Low (Low-Mid) Mid (Mid-High) High
Temp.indication: 4℃3 2 1 0℃
5. " super cool" button
When this mode is chosen, the lamp (super cool) is ON.
6. Water/Cubed Ice/Crushed Ice button
1) Select
The mode of Cubed Ice or Crushed Ice continues for 1 hour and then changes to Water.
( Water LED turns ON.)
Water/Cubed Ice/Crushed Ice.
2)
3)
LED lights up to show your selection is on.
Initial mode by power input: "Water"mode.
℃℃℃


-15℃-17℃-19℃-21℃ -22℃-23℃-25℃

9
OPERATION AND FUNCTIONS
CONTENTS REMARK
7. "ice maker lock" button
Start by pushing "ice maker lock" button
"ice maker lock" button is "ON",
"Water"Icon is always"ON"
Stop by pushing "ice maker lock" button again.
"ice maker lock"LED is "OFF",
"Water" Icon is "ON".
8. Filter information
The normal(LED OFF) is on for 6 month after first power input.
After six months, LED is on.
How to reset Filter information.
Push the "reset water filter " button for 5 seconds after change.



10
OPERATION AND FUNCTIONS
INPUT Control Object
1. freezer.set button
2. super freeze button
3. F-sensor
1. COMP
2. F-FAN
CONTENTS REMARKS
1. Temperature modes change by pushing the button.
2. Comp. and F-fan are controlled by ON / OFF point of each mode.
3. Freezer ON/OFF DIFF. : 4℃
Freezer middle OFF point : -21℃
If RT≤13℃, F-S OFF point increases by 2℃and Freezer Middle OFF point is -19℃.
4. Control point of each mode
Temp.
MODE
ON point
OFF point
Low Mid High
ON/OFF DIFF
-1 7.0
-2 1.0
-2 3.0
-2 7.0
-1 3.0
-1 7.0
-2 3.0
-1 9.0
-1 5.0
-1 9.0-1 9.5
-2 3.5-2 4.0
-2 0.0
(Low-Mid) (Mid-High1) (Mid-High2) (Mid-High3)
Low Low-Mid Mid Mid-High1 Mid-High2 Mid-High3 High
3-2. Temperature Control of Freezer Compartment (FC)

11
OPERATION AND FUNCTIONS
CONTENTS REMARKS
5. super freeze
1) Comp. and F-fan are ON (about 150 minutes) regardless of F-sensor.
2) F-fan runs at 14V for the first 90 min., then at 12V for the rest time.
F/S
F Fan
super freeze start F-fan RPM
change point Normal operation
90min.
14V
12V
60min.
* ON/OFF DIFF. :
fixed by MICOM
* STEP DIFF. :
fixed by MICOM
* Comp. and C-fan :
linked

12
OPERATION AND FUNCTIONS
INPUT Control Object
1. fridge set button
2. super cool 3. R-sensor 1. COMP 2. R-FAN
CONTENTS REMARKS
1. Temperature modes change by pushing the button.
2. R-fan are controlled by ON / OFF point of each mode.
3. RC [ON / OFF] DIFF : 0.5
( RC middle OFF point : 1.3 )
( If RT≤13 , R-S OFF point increases by 2℃and
Refrigerator Middle OFF point is 3.3℃.
4. Prevention of weak/poor-refrigeration
1) When weak refrigeration is sensed, comp. is ON regardless of F-sensor.
2) When R-sensor reaches R-fan OFF point, comp. is controlled by F-sensor and
R-fan turns OFF.
3) Sensing point of weak refrigeration : R-sensor OFF point of each mode + 7
4) Termination point : Same as R-sensor OFF point of each mode
* ON/OFF Diff. :
fixed by MICOM
* STEP DIFF. :
fixed by MICOM
Low Low -Mid Mid High
Mid-High
C C
C
C
5. Control point of each mode
Temp
MODE
ON point
OFFpoint
Low Mid High
STEP DIFFSTEP DIFF
ON/OFF
DIFF
(0.5 degree)
1.8
4.3
3.8
Weak refrigeration point
(Off point +7℃)
8.3
2.8
-0.2
-0.7 -0.7℃
.-0.2℃
2.3
(Low-Mid) (Mid-High)
1.3
6.3 6.3
9.3
10.8
C C C C C
C C
C
C
C C C C
3-3. Temperature Control of Refrigerator Compartment (RC)

13
OPERATION AND FUNCTIONS
CONTENTS REMARKS
7. Super cool refrigeration proceeds for 40 minutes.
Example of temperature change
(Refrigerator ; Low (normal) -> Super cool)
1) R-fan and comp. are ON until R-sensor reaches to over-refrigeration OFF
point (-7 ).
2) After reaching to the point, it goes on with HIGH mode until the end of
super cool.
3) It returns to normal after 40 minutes' of super cool.
*
C
super cool

3-4. Control of Each Mode
14
OPERATION AND FUNCTIONS
INPUT Control Object
1. R SENSOR 1. F/R-Fan (14V, 12V)
2. C-Fan (12V, 10V)
2. F SENSOR
CONTENTS REMARKS
1. Fan voltage of each control mode
2. Control against (under) load (Load Control)
1) Purpose : To restore F/R-temperature which has risen by load (much foods in or
frequent door openings) as soon as possible
2) Conditions to start
F or R door open time exceeds 30 seconds at a time Freezer and Refrigerator
load control starts respectively.
Over [F-sensor On Point + 5 degree] F load control
Over [R-sensor On Point + 5 degree] R load control
3) Conditions to avoid load control
Initial operation (right after power input)
Just after Pre-cool, Heater defrosting, Pause, Defrosting cycle
(After door opening, the load control enters if the condition complies with.)
4) Control Method
4-1) Control mode by F/R-door open time (over 30 seconds)
F/R-fan works by 14V respectively.
4-2) Control mode by [F-sensor On Point + 5 degree]
F-fan works by 14V.
4-3) Control mode by [R-sensor On Point + 5 degree]
R-fan works by 14V.
C-fan works by 12V.
5) Conditions to stop
The mode works for 20 minutes.
(If another condition happens at the end of the mode, it starts again.)
When it reaches to [F-sensor Off point], F-fan load control mode stops.
When it reaches to [R-sensor Off point], R-fan load control mode stops.
Control Mode F-Fan R-Fan C-Fan
Load Control
Normal 12V 12V
14V14V
10V
12V



Normal control : Normal operation mode
Load control : Operation mode when inside temperature goes up due to an
increase of load (foods) or frequent door openings

15
OPERATION AND FUNCTIONS
CONTENTS REMARKS
3. Control Time Chart of Each Mode
1) Start & stop of load control mode (Normal Control)
Door
F/S
F Fan
R/S
R Fan
Door Open
30 sec. after OpenLoad Mode Start
Ref Load Stop
Frz. Load Stop
On + 5deg
On + 5deg
Frz. Overload Input
Frz. Start Condition
Frz. Stop ; after 20min.
20min.
20min.
Ref. Load
14V
14V
12V
12V
2) Start & stop of load control mode (Normal defrosting Control)
F/S
F Fan
R/S
R Fan
Defrosting Start Condition to start Load
Mode, but avoided
during defrosting mode
Ref. Load Stop
On + 5deg
Normal Operation
20min.
Ref. Load Mode
14V
12V
12V
HTR
Comp

16
OPERATION AND FUNCTIONS
CONTENTS REMARKS
4. Flow Chart of Load Control Mode
Start
F/R door open time is over 30 sec. ?
F/S ON + 5deg?
R-sensor ON + 5deg?
Overload of both
compartments
Y
N
Freezer
Compartment
Overload
Refrigerator
Compartment
Overload
Y
N
Y
N
F load control;
over 20min?
F- sensor OFF point ?
Overload mode control
Overload mode ?
Normal mode
control
N
F load control mode stop
R-sensor OFF point? R load control mode
stop
End
Load control is avoided ?
N
Y
R load control;
over 20 min?
Y
Y
Y
N
Y
N
N
Y
N

17
OPERATION AND FUNCTIONS
INPUT Control Object
1. Total comp. work time
2. Comp. work rate
3. RT temperature
4. Total door open time
1. Defrosting Mode
CONTENTS
1. Conditions to start defrosting cycle
1) Total comp. work time : 6, 8, ........ 24 hours.
2) Total door open time : 3 minutes
(Any door - F or R - open time is over 3 minutes.)
3) Total time of [comp. ON + comp. OFF] : 60 hours
4) Any error mode : R1, F1, D1, F3, RT/S, Door-switch
2. Conditions to start defrosting mode
1) The mode starts with the following conditions ;
Any error happens when total comp. work time is 6 or 8....... or 24hours.
Total door open time is over 3 minutes.
(Any door - F or R - open time is over 3 minutes.)
2) Defrosting mode starts unconditionally as long as total comp. work time is 24 hours,
even if the above conditions( ~) are not satisfied.
3) Defrosting mode starts immediately as long as total time of [comp. ON + comp. OFF] is
over 60 hours, even if the above 1) and 2) conditions are not satisfied.
Remark

3-5. Defrosting Cycle

18
OPERATION AND FUNCTIONS
CONTENTS REMARKS
3. Flow Chart of Defrosting Start
Start
Comp. work time is over 24 hours ?
Total time is over 60 hours ?
Comp. work time is over 6 hours ?
Any error ?
EndDefrosting mode starts.
Yes
Yes
Yes
Yes
No
No
No
No
Comp. work time is over 2hours ?
Total door open time is over 3
minutes ?
Yes
Yes
No
No

19
OPERATION AND FUNCTIONS
INPUT Control Object
1. Defrosting Cycle
1. COMP
2. F-FAN
3. R-FAN
4. HEATER
CONTENTS REMARKS
1. Defrosting Mode
1) Time ; 50 minutes
2) Comp. / F-fan : ON
R-fan : Control
Heater : OFF
3) If F-sensor - 27 , then PRE-COOL becomes OFF.
1) Comp. /F-fan / R-fan : OFF
HTR : ON
2) Time limit
30 seconds : Heater is ON regardless of D-sensor
temperature right after defrosting start.
30 minutes : in case of D1-Error
80 minutes : in normal control state
, Heater Defrosting is OFF
1) Time : 7 minutes
Comp./ F-fan / R-fan / Heater / Homebar HTR : OFF
1) Time : 5 minutes
Comp. : ON
F/R-fan, Heater : OFF
Pre-Cool
Heater
Defrosting
Pause
Fan Delay
C

C
3-6. Defrosting Mode