Midea Ultimate Comfort Series User manual

CS78421-548-754
Ultimate Comfort Series
Installation Manual
MOB01-12HFN8-QRD6GWC
MOB01-09HFN8-QRD6GW
Outdoor Unit Model
Indoor Unit Model
MSMTAU-12HRFN8-QRD6GW
MSMTAU-09HRFN8-QRD6GW

Table of Contents
Installation Manual
Indoor Unit Installation........ 11
1. Select installation location..........................11
2. Attach mounting plate to wall....................
12
3. Drill wall hole for connective piping............
12
4. Prepare refrigerant piping...........................
14
5. Connect drain hose....................................
15
6. Connect the cables....................................
17
7. Wrap piping and cables..............................
18
8. Mount indoor unit.....................................
18
Outdoor Unit Installation...
20
8
1. Select installation location..................20
2. Install drain joint................................
21
3. Anchor outdoor unit..........................
22
4. Connect signal and power cables.......23
Safety Precautions........................... 4
0
1
5
6
2
4
Unit Parts..........................................10
3
Accessories........................................
Installation Summary - Indoor Unit........

Refrigerant Piping Connection........ 25
A. Note on Pipe Length................................................25
B. Connection Instructions –Refrigerant Piping............. 25
1. Cut pipe..............................................................
25
2. Remove burrs......................................................
26
3. Flare pipe ends....................................................
26
4. Connect pipes.....................................................
27
Air Evacuation................... 29
1. Evacuation Instructions...................... 29
2. Note on Adding Refrigerant...............30
Electrical and Gas Leak Checks........ 31
Test Run............................................32
European Disposal Guidelines........34
6
7
8
9
35
11
MC MC
Caut ion: Risk of fire
(for R32 refrigerant ony )
10
Servicing Information .................
Display Board, Fault Codes..............27

14
12 Quick Guide................................40
13 Display board & Fault Codes ...41
Service Documents....................42

Page 4 
Safety Precautions
Read Safety Precautions Before Installation
This symbol indicates that ignoring instructions may cause death or serious
injury.
This symbol indicates that ignoring instructions may cause moderate injury
to your person, or damage to your unit or other property.
Incorrect installation due to ignoring instructions can cause serious damage or injury.
The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION.
WARNING
CAUTION
WARNING
When connecting refrigerant piping, do not let substances or gases other than the specified
refrigerant enter the unit. The presence of other gases or substances will lower the unit’s capacity,
and can cause abnormally high pressure in the refrigeration cycle. This can cause explosion and injury.
1. Installation must be performed by an authorized dealer or specialist. Defective installation can
cause water leakage, electrical shock, or fire.
3.
Contact an authorized service technician for repair or maintenance of this unit.
4.
Only use the included accessories, parts, and specified parts for installation. Using non-standard
parts can cause water leakage, electrical shock, fire, and can cause the unit to fail.
5. Install the unit in a firm location that can support the unit’s weight. If the chosen location cannot
support the unit’s weight, or the installation is not done properly, the unit may drop and cause
serious injury and damage.
This symbol indicates that you must never perform the action indicated.
6.
7.
8.
9.
10.
Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources
(for example: open flames,an operating gas appliance or an operating electric heater)
Do not pierce or burn.
Appliance shall be stored in a well -ventilated area where the room size corresponds to the
room area as specifiec for operation.
Be aware that refrigerants may not contain an odour.
NOTE: Clause 7 to 10 are required for the units adopt R32 Refrigerant.
2. Installation must be performed according to the installation instructions. Improper installation can
cause water leakage, electrical shock, or fire.

Page 5 
WARNING
12. For all electrical work, use the specified cables. Connect cables tightly, and clamp them securely to
prevent external forces from damaging the terminal. Improper electrical connections can overheat
and cause fire, and may also cause shock.
13. All wiring must be properly arranged to ensure that the control board cover can close properly. If
the control board cover is not closed properly, it can lead to corrosion and cause the connection
points on the terminal to heat up, catch fire, or cause electrical shock.
CAUTION
Do not install the unit in a location that may be exposed to combustible gas leaks. If combustible
gas accumulates around the unit, it may cause fire.
1. The product must be properly grounded at the time of installation, or electrical shock may occur.
Note about Fluorinated Gasses
1. This air-conditioning unit contains fluorinated gasses. For specific information on the type of gas
and the amount, please refer to the relevant label on the unit itself.
Compliance with national gas
regulations shall be observed.
2. Installation, service, maintenance and repair of this unit must be performed by a certified technician.
3. Product uninstallation and recycling must be performed by a certified technician.
4. If the system has a leak-detection system installed, it must be checked for leaks at least every 12 months.
When the unit is checked for leaks, proper record-keeping of all checks is strongly recommended.
2. Install drainage piping according to the instructions in this manual. Improper drainage may cause
water damage to your home and property.
3. The appliance shall be stored so as to prevent mechanical damage from occurring.
4. Any person who is involve with working on or breaking into a refrigerant circuit should hold a
current valid certificate from an industry-accredited assessment authority, which authorizes
their competence to handle refrigerants safely in accordance with an industry recognized
assessment specification.
11. For all electrical work, follow all local and national wiring standards, regulations, and the
Installation Manual. You must use an independent circuit and single outlet to supply power.
Insufficient electrical capacity or defects in electrical work can cause electrical shock or fire.
For units that have an auxiliary electric heater, do not install the unit within 1 meter of any
combustible materials.

Name
Shape Quantity
1
1
1
(for cooling & heating
models only)
Clip anchor
Mounting plate fixing
screw ST3.9 X 25
Remote controller
Fixing screw for remote
controller holder ST2.9 x 10
Remote controller holder
Dry battery AAA.LR03
Seal
Drain joint
Mounting plate
1
Accessories
The air conditioning system comes with the following accessories. Use all of the installation
parts and accessories to install the air conditioner. Improper installation may result in water
leakage, electrical shock and fire, or cause the equipment to fail.
5
5
2
1
Optional
Parts
2
Page 6 
Timer
Boost

1
1
1
Owner’s manual
Installation manual
Remote controller
illustration
SPLIT-TYPE ROOMAIR CONDITIONER
CS78421-548-754
IMPORTANTNOTE:
Read this manual carefully beforeinstalling
or operating your new air conditioning
unit. Make sure to save this manual for
futurereference.
Owner’s Manual
Aurora Series
All Model Numbers
SPLIT-TYPE ROOMAIR CONDITIONER
CS78421-548-754
IMPORTANTNOTE:
Read this manual carefully before installing
or operating your new air conditioning
unit. Make sure to save this manual for
future reference.
Installation Manual
Aurora Series
All Model Numbers
Page 7 
Name
Shape Quantity
IMPORTANTNOTE:
Read this manual carefully before installing
or operating your new air conditioning
unit. Make sure to save this manual for
future reference.
AIR CO ND I T IO N E R
RE MO TE CON TR OL LER I L LU S T RATI O N
WARNING
2
2
Appliance shall be stored in a well -ventilated area where the room size corresponds to the
room area as specifiec for operation.
For R32 frigerant models:
Appliance shall be installed, operated and stored in a room with a floor area larger than 4m .
Appliance shall not be installed in an unvertilated space, if that space is smaller than 4m .

Page 8
Installation Summary - Indoor Unit 2
Installation
Overview
Select Installation Location
(Page 11)
Attach Mounting Plate
(Page 12)
Drill Wall Hole
(Page 12)
Determine Wall Hole Position
(Page 12)
12
3 4
12cm12cm
2.3m
15cm

Page 9 
Mount Indoor Unit
(Page 18)
STEP 8
Connect Piping
(Page 25) Connect Wiring
(Page 17)
Prepare Refrigerant
piping
(Page 14)
5 6 7
8
Installation
Overview