Samsung MWR-WW10N User manual

SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
1. Precautions
2. Features and Specifications
3. Disassembly and assembly
4. Troubleshooting
5. Parts layout
6. Wiring diagram
7. S/W Download
Wired Remote Controller
ContentsWired Remote Controller
MODEL CODE : MWR-WW10N
MWR-WW10JN
MWR-WW10KN
MWR-WW10KN
MWR-WW10UN

SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Disclaimer:
This manual contains confidential and proprietary information of Samsung
Electronics Co., Ltd. ("Samsung")
All text, graphics, user interfaces, visual interfaces, photographs,
trademarks, and logos (collectively, "Content"), including but not
limited to the design, structure, selection, coordination, "look and feel"
and arrangement of such Content, contained in this manual is owned,
controlled or licensed by or to Samsung, and is protected by trade dress,
copyright, patent and trademark laws, and various other intellectual
property rights and unfair competition laws.
No part of this manual or the Content may be copied, reproduced,
republished, uploaded, posted, publicly displayed, encoded, translated,
transmitted or distributed in any way (including "mirroring") to anyone,
any entity, any other computer, server, Web site or other medium for
publication or distribution or for any commercial purpose, without
Samsung’s express prior written consent.
Samsung reserves the right, at its sole discretion, to change, modify,
add or remove portions of any part of this manual at any time. It is your
responsibility to check the manual periodically for changes. Your use of
the manual will mean that you accept and agree to this disclaimer. If you
do not agree with any part of this disclaimer, please stop using this manual
immediately.

SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Contents
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
1. Precautions ............................................................................................................................................ 1-1
1-1. Service Precautions............................................................................................................................ 1-1
1-2. Product Safety Precautions .............................................................................................................. 1-1
2. Features and Specifications .................................................................................................................2-1
2-1. Product Features................................................................................................................................ 2-1
2-1-1. Product Features.....................................................................................................................2-1
2-1-2. Changes compared to basic products..................................................................................2-2
2-2. Product structure...............................................................................................................................2-3
2-3. Product Specification ....................................................................................................................... 2-4
2-3-1. Environment and Specification ........................................................................................... 2-4
2-3-2. Feature expansion specification ..........................................................................................2-5
2-4. How to install ...................................................................................................................................2-18
2-4-1. Wired remote control installation .....................................................................................2-18
3. Disassembly and assembly ..................................................................................................................3-1
4. Troubleshooting....................................................................................................................................4-1
4-1. Things to check before diagnosis ....................................................................................................4-1
4-1-1. Errors displayed on the Wired Remote Controller ............................................................4-1
4-2. Action by symptom .......................................................................................................................... 4-2
4-2-1. When the LCD screen does not come out .......................................................................... 4-2
5. Parts layout............................................................................................................................................5-1
6. Wiring diagram......................................................................................................................................6-1
7. S/W Download ....................................................................................................................................... 7-1

Cautions
1-1 1-1
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
1. Precautions
1-1. Service Precautions
• When replacing electrical parts, be sure to use the rated parts.
- Check the display of the model name, rated voltage, rated current, etc. of the electrical parts.
• When repairing the fault, please repair the connection of HARNESS type firmly.
- If the wiring is not good, abnormal noise or abnormal operation may occur.
• If the product is disassembled and assembled while lying down, work on the operation beam.
- Scratches may occur on the back of the product.
• When repairing a fault, remove dust and foreign matter from the HOUSING, wiring and inspection parts.
- It is possible to prevent fire hazard such as TRACKING, SHORT.
• Check the assembly of the parts after the fault has been repaired.
- It must be in the same state as before repair.
1-2. Product Safety Precautions
• Do not pull on the wire or touch the power plug or the auxiliary power switch with wet hands.
- Risk of electric shock or fire.
• If the power cord or power plug is damaged, be sure to replace it to prevent danger.
• Do not bend the wires excessively or do not break them with heavy objects.
- Risk of electric shock or fire.
• Do not use multi-outlet.
- Risk of electric shock or fire.
• Ground if necessary.
- In particular, be sure to ground if water or humidity indicates that there is a risk of a short circuit.
• When replacing or repairing electrical parts, unplug the power plug or turn off the auxiliary power switch.
- There is a danger of electric shock.

Features and Specifications
2-1 2-1
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
2. Features and Specifications
2-1. Product Features
2-1-1. Product Features
■Color Graphic LCD (4.3 ") wired remote control with large screen
- Floating Display for user-desired point function
[ For the slave wired remote controller settings,
please refer to the sections about the wired remote controller installation/service mode. ]

Features and Specifications
2-2
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Item Basic
(MWR-WE13N)
New
(MWR-WG00JN/MWR-WG00KN
/MWR-WW10N/MWR-WW10JN/
MWR-WW10KN/ MWR-WW10UN)
Changes
CASE
Apply new CASE
- CASE TOP
- CASE BOTTOM
ASSY
PCB
Applying new PBA
ASSY
DISPLAY
03/28/2019 1:30 PM
Heat
30
Zone 1
Set Current
Water outlet
Water
Outlet
Water
Outlet
Indoor
°
.0 28.2°
8.3°
Fixed LCD Display

Display
ETC
- Software code
• Main Micom: DB91-01543A
- Fixed Display Icon
- No air cleanliness indication
- No indication of indoor model
information
- Software code
• Main Micom: DB91-02150A
• Touch Micom: DB91-02076A
• Image Micom: DB91-02077D
- Color Floating Display Icon
- Air cleanliness value display
(PM 10 / 2.5 / 1.0)
- Indication of indoor model
information
(Serial No, model code)
2-1-2. Changes compared to basic products

Features and Specifications
2-2 2-3
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
2-2. Product structure
■ExternalDimensions
120.0 (4.72) 19.0(0.75)
120.0 (4.72)
[Unit : mm(inch)]

Features and Specifications
2-4
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
2-3. Product Specification
2-3-1. Environment and Specification
Classification Item Specification Remarks
General
Conditions
Use Aria Region of use (Korea)
Type of use Wall-mount type, air conditionerIndoor unit Remote controller
Refer to
User's Manual
Refer to
Installation Guide
Accessory
Supply Contact Service Center
Installation
conditions
Operating
temperature 
Operating
humidity Humidity 30% RH to 90% RH (except for condensation)
Power input 12VDC / 25A
Installation Installation
space Installation Mounting wall Installation
Delivery
Open Follow the prescribed sequence.
Delivery
confirmation
• Check by delivery CHECK SHEET, repair defective items.
• Instructions for use, conditions of use, and precautions for
use are given in the instructions. In case of a problem in this
process, the service is available where possible.
Installation Instructions Reference Guide Installation Guide Refer to
Installation Guide
ETC Be sure to refer to installation guides and user manuals. Refer to
Installation Guide
■Accessories
Name
Wired
Remote
Controller
Cable Tie Cable Clamp M4x16
Screw
User's
Manual
Installation
Guide U Terminal
Quantity 1 2 3 5 1 1 6
Shape

Features and Specifications
2-4 2-5
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Outdoor 03/28/2019 1:30 PM
Zone1 Zone2
30
Heat
Set
°
°
28.2
.0 24
Heat
Set
°
.0
DHW
45
Economic
Set
°
.0
2-3-2. Feature expansion specification
■Lookatthebutton
Num Overview
①Operation status display : Displays the operation/function settings and statuses.
②Operation On/Off button (LED) : Turns the air conditioner/ventilator power On/Off
③Up/Down button : Moves between items vertically or changes the set temperature.
④Left/Right button : Moves between items horizontally orchanges the item value.
⑤OK button : Saves your new settings.
⑥Save & Return button : Saves your new settings and returns to the previous step.
⑦Option button : Selects the detailed setting function.
• The operation mode display on the remote controller changes depending on the selected language.
• Some functions may not be available, depending on the indoor unit specifications.
• You can see the operation status on the LED display.
- On: Product is operating
Blinking: Error occurred
Off: Product is off
NOTE
①①
②②
④④
⑤⑤
⑥⑥
⑦⑦
③③

Features and Specifications
2-6
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Outdoor 03/28/2019 1:30 PM
Zone1 Zone2
30
Heat
Set
°
°
28.2
.0 24
Heat
Set
°
.0
DHW
45
Economic
Set
°
.0
Feature expansion specification
■HomeScreen
Num Overview
①Outdoortemperature display : Displays outdoortemperature.
②Date and time display : Displays current date and time.
③Zone1 display : Displays set temperature and operation modes for Zone 1.
④Zone 2 display : Displays set temperature and operation modes for Zone 2.
⑤DHW display : Displays set temperature and operation modes for DHW
• The Home screen may vary depending on whether Zone control is selected at the initial installation and whether DHW
is supported.
NOTE
①①②②
⑤⑤③③
④④

Features and Specifications
2-6 2-7
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
03/28/2019 1:30 PM
Heat
30
Zone 1
Set Current
Water outlet
Water
Outlet
Water
Outlet
Indoor
°
.0 28.2°
8.3°
Feature expansion specification
Zone Screen
Num Name
①Set temperature display : Displays the set temperature.
②Current temperature display : Displays current temperature forWater Outlet.
③Current temperature display : Displays current temperature for Indoor.
④Operation mode display : Displays any of Auto, Cool, and Heat.
⑤Temperature sensor display : Displays any of WaterLaw, Water Outlet, and Indoor.
⑥Schedule indicator : When you are setting a schedule.
When you are setting the operation time limit.
⑦Check indicator
⑧Lock indicator
⑨Central Control indicator
• Unavailable functions are marked inactive and they cannot be set.
• The locations of icons may differ depending on the function.
• When you do not press any button for 7 seconds, the function of the position is automatically selected.
NOTE
①①
⑥⑥
⑦⑦
⑤⑤
③③
②②
⑨⑨
⑧⑧
④④

Features and Specifications
2-8
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Feature expansion specification
DHW Screen
Num Name
①Set temperature display : Displays the set temperature.
②Current temperature display : Displays current temperature forWater Outlet.
③Operation mode display : Displays any of Economic, Standard, Power, and Forced.
④Schedule indicator : When you are setting a schedule.
When you are setting the operation time limit.
⑤Check indicator
⑥Lock indicator
⑦Central Control indicator
• Unavailable functions are marked inactive and they cannot be set.
• The locations of icons may differ depending on the function.
• When you do not press any button for 7 seconds, the function of the position is automatically selected.
NOTE
Standard
Set Current
84 °°
.0 -2.4
03/28/2019 1:30 PM
DHW
①①
④④
⑤⑤
③③
②②
⑦⑦
⑥⑥

Features and Specifications
2-8 2-9
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Operation
Status
Quiet
ON
Priority
DHW
OptionEnergy
Outing
OFF
Schedule
Settings
Feature expansion specification
Settings Screen
①①
⑤⑤
④④
⑦⑦
③③②②
⑥⑥
Num Overview
①Operation status display
②Quiet display
③Outing display.
④Schedule display
⑤Energy display
⑥Priority A2A display
⑦Option display
• Functions that are not supported are marked inactive and can not be set.
• You can also use the button to select the menu with the> button function of the additional function.
• If the button is not pressed for 180 seconds when setting the additional function, the setting value is not saved and the
screen is moved to the Home screen.
NOTE

Features and Specifications
2-10
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Feature expansion specification
■HowtosettheOption&Usermode
1. Press the button.
2. Press the or button to select Option, and then press the button.
3. See the following pages to select the desired menu.
Step1 Step 2 Step 3 Step 4 Step 5 Description Default
Button Lock ON/OFF OFF
ErrorList - -
IndoorUnit
Information - -
UserMode
Language Differs depending on the
language
First value forthe language
pack
Daylight Saving
Time
Daylight Saving
Time ON/OFF MWR-WW10N/JN/KN : OFF MWR-WW10UN : ON
Unit Day/Week Week
Month Januaryto December Mar
Week 1st to 4th, F (finalweek) F (final week)
Day 1 to 31 22
Lock
All Lock ON/OFF OFF
Lock of partial
function
Operation Lock ON/OFF OFF
Operation Mode
Lock
All Mode Lock ON/OFF OFF
Auto Mode Lock ON/OFF OFF
Cool Mode Lock ON/OFF OFF
Heat Mode Lock ON/OFF OFF
Temperature
Lock ON/OFF OFF
Schedule Lock ON/OFF OFF
Operation
Status
Quiet
ON
Priority
DHW
OptionEnergy
Outing
OFFOFF
Schedule
Settings

Features and Specifications
2-10 2-11
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Feature expansion specification
■HowtosettheOption&Usermode
Step1 Step 2 Step 3 Step 4 Step 5 Description Default
UserMode
Wired remote
controller
LED ON/OFF OFF
Button Mute ON/OFF OFF
Current Time
Date
Date Format YYYY/MM/DD, DD/MM/
YYYY, MM/DD/YYYY DD/MM/YYYY
Year/Month/
Day 2000 to 2099/1 to12/1 to 31 2019.01.01
Time
Time Format 12-Hour/24-hour 12-Hour
Hour/Minute/
AM/PM 0 to12/0 to 60/AM.PM PM12 Hour 00 Minute
Reset Remote
Controller - -
Display Setting
Brightness 10 to100% 100%
Screen Saver Timer 10 to 60 seconds 30sec
Brightness 0,10, 30, 50, 70% 30%
Smart Reset - -
Reset All User
modes - -
Service Time
Check
Service Call
Number
Service call numberentered
forService mode -
Last Inspection Final control date entered
forService mode
• When two wired remote controllers are connected, the brightness can be set within 10 to 50%.
NOTE

Features and Specifications
2-12
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Feature expansion specification
■Wiredremotecontrolinstallation/servicemode
1. If you want to use the various additional functions for your Wired Remote Controller, press the and buttons at
the same time for more than 3 seconds.
• The password entry screen appears.
2. Enter the password, “0202,” and then press the button.
• The settings screen for installation/service mode appears.
3. See the list of additional functions for the Wired Remote Controller on the next page, and then select the desired menu.
• Once you have entered the setting screen, the current setting appears.
• Refer to the chart for data setting.
• Using the ,buttons, change the settings and press the button to move to the next setting.
• Press the button to save the new setting.
• Press the button to move to the Home screen.
• While setting the data, you can press the button to move to the Home screen after checking the saving status at a
pop-up screen.
NOTE
0
Please enter your PASSWORD
Service mode

Features and Specifications
2-12 2-13
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Feature expansion specification
■Installation/Servicemode
• Unavailable functions are marked inactive and they cannot be set.
• If communication initialization is needed after the setting, the system will reset automatically and communication
will be initialized.
NOTE
Step1 Step 2 Step 3 Description Default
Service Timer
Service Call
Number
16-digit phone number Input:
Blank, -, 0-9 -
Last Inspection Year, Month, Day -
Installation Data Year, Month, Day -
Quiet Mode
Automatic Time
Enable/Disable Disable
Entry time to Exit time 

Indoor Zone
Option
Cool/Heat
Selection Cool & Heat/Heat only Cool & Heat
Master/Slave
Wired Remote Master/Slave Master
Zone Selection Zone 1/Zone2 Zone 1
Standard
Temperature Water Outlet/Indoor Water Outlet
Temperature Unit 



Temperature Sensor
Selection
Wired Remote Controller/External
Temperature Sensor
Wired Remote
Controller
Room Temperature
Calibration
Reference
Temperature -9 to 40°C -
Calibration Value -9 to 40°C 
Indoor Zone
Status Information
Central : ON/OFF -
Normal Power : ON/OFF -
Mode : Heat/Cool/Auto -
DHW Power : ON/OFF -
DHW Mode : Economic/Standard/
Power/Forced -
Water Pump : ON/OFF -
BSH : ON/OFF -
BSH : ON/OFF -
Flow sensor : lpm -
Inverter Pump :  -
EEV Step :  -
Thermostat 1 : ON/OFF -
Thermostat 2 : ON/OFF -
DHW Thermostat : ON/OFF -

Features and Specifications
2-14
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Feature expansion specification
■Installation/Servicemode
Step1 Step 2 Step 3 Description Default
Connection
Information
Number of
Connection 0 to 16 -
View Master
Indoor Unit Address -
Master Indoor Zone
Information
Serial No. : - -
Indoor Unit Eva In
Temp.(Teva_in) : Temperature -
Indoor Unit Eva Out
Temp.(Teva_out) : Temperature -
Indoor Unit
PHE IN(Tw1) : Temperature -
Indoor Unit
PHE OUT(Tw2) : Temperature -
DHW Tank
Temp. (Tt) : Temperature -
DHW Mode : Economic/Standard/
Power/Forced -
Device Information
Micom Code : Micom code -
Program Version : Modified date -
Touch Code : Touch IC code -
Program Version : Modified date -
Graphic Image : Graphic image code -
Program Version : Modified date -
Reset All Service
Modes
Erase All Service
mode data - -
Initialize a remote
controller - -
Initialize unit
information - - - -
 - -
ODU K3 Reset - -
Field Setting Value
 - -
 - -
 - -
 - -
 - -
Simple Setting - -
FSC Upload/
Download - -

Features and Specifications
2-14 2-15
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Step1 Step 2 Step 3 Description Default
Self-Test Mode
Self-Test Mode
Display
Water Inlet Temp. : Temperature -
Water Outlet Temp. Temperature -
Backup Heater
Outlet Temp. Temperature -
Mixing Valve
Outlet Temp. : Temperature -
Tank Temp. : Temperature -
IndoorAmbient
Temp. Temperature -
IndoorAmbient
Temp.(Zone 2) : Temperature -
Water Outlet
Temp. (Zone1) : Temperature -
Water Outlet
Temp. (Zone 2) : Temperature -
Thermostat #1
(Zone 1) Heat/Cool -
Thermostat #2
(Zone 2) : Heat/Cool -
Solar Panel ON/OFF -
Water Pump ON/OFF OFF
Booster Heater ON/OFF OFF
DHW Valve
(3Way Valve) ON/OFF OFF
Zone 1 Valve ON/OFF OFF
Backup Heater1 +
Water Pump ON/OFF OFF
Backup Heater2 +
Water Pump ON/OFF OFF
Backup Boiler ON/OFF OFF
Zone 2 Valve ON/OFF OFF
Mixing Valve ON/OFF OFF
Indoor Unit Option
Address Main address 00 to 4F -
RMC address 00 to FE -
 Refer to the installation manual of
the connected indoorunit -

-

-
MCU Port MCU address 00 to 15 -
MCU Port A to F -
Power Master Reset is a setting needed to supply optimized power to wired remote controller when multiple
indoor units are connected to wired remote controller in a group.
The total option codes are 24 digits. You can set six digits at a time and it is distinguished by page number.
Press the button to move to the next page.
Feature expansion specification
■Installation/Servicemode

Features and Specifications
2-16
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
SAMSUNG PROPRIETARY. DO NOT COPY OR DISTRIBUTE WITHOUT PERMISSION
Feature expansion specification
■Installation/servicesettingmode
Indoor unit/Ventilator option
Address
Product option
Installation option 1
Installation option 2
Target Address
Serial No.:
Press the OK button to set the current step.
Product option (1/5) Product option (2/5)
Target Address:20 00 00
Press the OK button to set the current step.
Product option (5/5)
Target Address:20 00 00
Press the OK button to complete the setting.
Indoor unit/Ventilator option
Address
Product option
Installation option 1
Installation option 2
• Address is displayed in hexadecimal. Please refer to the following table.
NOTE
Hexadecimal Decimal Hexadecimal Decimal Hexadecimal Decimal Hexadecimal Decimal Hexadecimal Decimal
00 010 16 20 32 30 48 40 64
01 111 17 21 33 31 49 41 65
02 212 18 22 34 32 50 42 66
03 313 19 23 35 33 51 43 67
04 414 20 24 36 34 52 44 68
05 515 21 25 37 35 53 45 69
06 616 22 26 38 36 54 46 70
07 717 23 27 39 37 55 47 71
08 818 24 28 40 38 56 48 72
09 919 25 29 41 39 57 49 73
0A 10 1A 26 2A 42 3A 58 4A 74
0B 11 1B 27 2B 43 3B 59 4B 75
0C 12 1C 28 2C 44 3C 60 4C 76
0D 13 1D 29 2D 45 3D 61 4D 77
0E 14 1E 30 2E 46 3E 62 4E 78
0F 15 1F 31 2F 47 3F 63 4F 79