Midea MA-09NXD0-I User manual

HIGH WALL SYSTEM QUICK
GUIDE
1

Contents
2
Page 3 Basic Wiring diagram
Page 4 Unit dimensions/Pipe sizes/Cable sizes/Refrigerant charging
Page 5 5 Core interconnecting terminals
Page 6 & 7 4 Core interconnecting explanation
Page 8,9,10,11 Wifi and Hard wired controller installation
Page 12 Infra Red Controller
Page 13 App Set Up
Page 14 Forced Cooling Mode
Page 15 & 16 Information Enquiry Mode

3
Basic Wiring
L N E
W
S
1(L)
2(N)
E
W
S
2(N)
E
1(L)
Infra-red and Wifi
control as standard

4
Dimensions/Pipe and Cable Sizes/Charging
Indoor Model Outdoor
Model
Cooling Duty
(kW)
Heating Duty
(kW)
Outdoor Dimensions
Outdoor Weight
(Kg)
Indoor Dimensions Indoor Weight(Kg)
W(mm) D(mm) H(mm) W(mm) D(mm) H(mm)
MA-09NXD0-I MA-
09N8D0-O
3.22 3.37 700 270 550 22.7 805 205 285 7.9
MA-12NXD0-I MA-
12N8D0-O
4.10 4.22 700 270 550 22.7 805 205 285 7.9
MA-18NXD0-I MA-
18N8D0-O
6.14 6.91 800 333 554 34 958 223 302 10.3
MA-24NXD0-I MA-
24N8D0-O
8.25 8.53 845 363 702 51.5 1038 235 325 12.8
Piping Information
Model: 09 12 18 24
Liquid Line Inch 1/4 1/4 1/4 3/8
Gas Line Inch 3/8 3/8 1/2 5/8
Drain Line Φ mm 16 16 16 16
Max Length M 25 25 30 50
Max Height M 10 10 20 25
Electrical Wiring Information
Model: 09 12 18 24
Mains Outdoor 3x1.5mm² 3x2.5mm²
Interconnecting/Indoor Power 5x1.5mm² 5x2.5mm²
Power Supply Information
Model: 09 12 18 24
Outdoor Ph/A 1/16 1/16 1/16 1/20
Indoor Powered from Outdoor Unit
Refrigerant Charging Information
Model: 09 12 18 24
Pre – Charge Kg 0.5 0.5 1.0 1.6
Charged to M 5 5 5 5
Additional g/m 12 12 12 24
Refrigerant Type R32

5
Wiring Information – 5 core interconnecting
When using a 5 core interconnecting cable the
wiring is very simple. Outdoor to Indoor
W to W
1(L) to 1(L)
2 (N) to 2 (N)
S to S
E to E

6
Wiring Information – 4 Core Interconnecting
For instances where a 4 core interconnecting is to
be used we can bypass the 1W standby relay and
power the condenser directly from the mains
supply
This reverts the system back to 5W standy power
usage, the same as all other manufacturers
To achieve this, when the unit is powered down,
we need to move the brown spade connection
from the W terminal and replace it onto the spare
connection on the 1(L) terminal
You then wire with a 4 core cable and miss W at
both units

7
Wiring Information – 4 Core interconnecting
How it
should look

8
Wifi & Controller Installation
The connections for both the wifi adapter and a
hard wired controller are on the display board
To access it, lift up the fascia and remove the
screw that is holding it in place
Ease the display board from the fascia holdings
and it will hang from the connection made to the
indoor pcb

9
Wifi & Controller Installation
CN2 – KJR29B controller uses an
adapter cable to connect to the wall
mounted units
CN3 – The wifi dongle plugs into
the housing connected to CN3

10
Installation – Controllers – KJR29B (one to one)
•Comes with a 6m cable
•Jack plugged one side/made off the other
•Jack plugs into fascia/display board
•Other end is made off and wired into the
terminals
•A&B – Comms
•C&D – 5v Power
A – Brown/Blue
B – Red
C- Yellow
D - Black

11
Installation – Controllers – KJR29B (one to many)
•KJR29B master cable can be
supplied free of charge (terminal
strip added to A&B)
•Plugs into the unit closest to the
controller
•Slave adapters can be ordered
for additional units
•These consist of the same jack
plug as the master cable but only
has connections for A&B
•2 core cable can be daisy chained
between A&Bs and connected
onto A&B terminals at the
master
A – Brown/Blue
B – Red
C- Yellow
D - Black

12
Controllers – Infra red – RG70
1. On/Off Button – Press to turn system on & off.
2. UP Button – Press to increase set temperature
DOWN Button: Press to decrease set temperature
Note: When the systems operates under heating mode with the set temperature of
17˚C, pressing the button continuously twice will activate 8 Degree heating mode. The
indoor unit display will show FP.
3. MODE Button: Press to select operation mode.
Available options:AUTO, COOL, DRY, HEAT, FAN
4. ECO Button: Used to enter the energy efficient mode
5. Timer Button: Press to initiate the auto-on/ auto-off time sequence.
6. Super Button: Press during cooling operation to set temperature to 17˚C at high fan
speed for fast cooling. Press under heating operation to set temperature to 30˚C, at
high fan speed for fast heating.
7. Do Not Disturb Button: Press to turn off the indoor display & buzzer, fan speed
shifts to low,
creating a comfortable and quiet environment. Press again to cancel.
8. Fan Button: Press to set Fan speed.
Available options:AUTO, LOW, MED, HIGH
9/11. Swing Button: Used to stop/ start horizontal louver movement or set the desired
up/down air flow direction.
10. OK Button: Used to confirm the optional functions.
12. Options Button: Press to set function.
Available Options: Fresh, Follow Me, Comfort, Self-Clean
13. Gear Function: Press to enter the energy efficient mode
Available Options: 50% / 75% electrical consumption

13
App Set Up
•Download the Midea Air app from
Apple or Google Play store
•Set up account
•Click Add Unit
•Switch the power off to the unit
and restart (the procedure must
be completed within 8 mins of
power on)
•Press the LED button (red circled)
7 times until the unit shows AP on
the display
•Follow the instructions on the app

14
Forced Cooling Mode
Lift up the fascia to reveal the Forced
cooling button on the bottom right of
the unit, below the wiring terminals
Press the button twice to enter
Forced cooling mode
The display will change to FC
The compressor and outdoor fan run
at fixed frequency and the indoor fan
runs at high speed (80%)
After running for 30 minutes, the
system will turn to auto mode with
24℃setting temperature.

15
Information Enquiry – How to enter
LED BUTTON SWING Switch the unit on, press the LED button 3
times in quick succession, now press the
swing button 3 times (even when the display
is off)
After 3 seconds the unit will enter Info Equiry
mode
We can access the system running
parameters using this method

16
Information Enquiry – Data available
Using the LED and swing buttons you can
cycle through the items in the table on the
right to help with commissioning data and/or
fault diagnosis