mundoclima MVD DC2 Series Installation instructions

English
CL23570 to CL23573
www.mundoclima.com
MVD
Installation and owner's manual
Console MVD DC2
ES: "Manual de instalación y usuario" ver:
www.mundoclima.com/gama/industrial/caudal-variable/mvd-dc2/z/
FR: "Manual d'installation et d'utilisation" voir: www.mundoclima.com/fr/equipements
-pour-climatisation/climatisation-gamme-industrielle/debit-variable/mvd-dc2/z/
DE: "Benutzer- und Installationshandbuch" sehen: www.mundoclima.com/de
/klimatisierungseinheiten/industrie/variables-volumen/mvd-dc2/z/
PT: "Manual do utilizador e de instalaçao" ver: www.mundoclima.com/pt/equipa
mentos-de-climatizacao/climatizacao-gama-industrial/caudal-variavel/mvd-dc2/z/

There are two types of precautions as described below:
Warning: Failure to comply may lead to death or serious injury.
Caution: Failure to comply may lead to injury or damage of the
unit. Depending on the situation, this may also lead to serious injury.
Once the installation is completed, and the unit has been tested and
verified to be operating normally, please explain to the customer how
to use and maintain the unit according to this manual. In addition,
make sure that the manual is kept properly for future reference.
1
Caution
Warning
Installation Manual
Safety Precautions
Read carefully before you install the air conditioner to make sure that
the installation is correct.
 Install the water discharge piping according to the steps
described in this manual, and make sure that the water
discharge is smooth, and the piping is properly insulated to
prevent condensation. Improper installation of the water
discharge piping may lead to water leakage, and damage the
indoor furniture.
 When mounting the indoor and outdoor units, make sure the
power cord is installed at a distance of at least 1 m away from
any TV or radio so as to prevent noise or interference with the
images.
 The refrigerant required for the installation is R410A. Make
sure the refrigerant is correct before installation. Incorrect
refrigerant may cause the unit to malfunction.
 Do not install the air conditioner in the following places:
1) where there is oil or gas, such as the kitchen. Otherwise, the
plastic parts may age, fall off or water may leak.
2) where there are corrosive gases (such as sulphur dioxide).
Corrosion in the copper pipes or welded parts may cause the
refrigerant to leak.
 Installation, maintenance and cleaning the filter work must be
carried out by professional installers. Refrain from doing it
yourself. Improper installation may cause water leakage, electric
shock, or fire.
 Install the air conditioner according to the steps described in this
manual. Improper installation may cause water leakage, electric
shock, or fire.
 For installation in smaller rooms, you must adopt the relevant
measures to prevent the refrigerant concentration from exceeding
the limit. Please consult the sales agent on the relevant measures
required. A high concentration of refrigerant in an airtight space
can cause oxygen insufficiency (anoxia).
 Make sure the required parts and accessories are installed. Using
unspecified parts may cause the air conditioner to malfunction or
drop, as well as water leakage, electric shock, and fire.
 Mount the air conditioner in a place that is sturdy enough to bear
its weight. If the base is not secured properly, the air conditioner
may drop leading to damages and injuries.
 Take in full consideration to the effects of strong winds, typhoons
and earthquakes, and reinforce the installation. Improper installation
may cause the air conditioner to drop leading to accidents.
 Make sure a standalone circuit is used for the power supply. All
electrical parts must comply with the local laws and regulations,
and what is stated in this installation manual. The installation
works must be carried out by a professional and qualified
electrician. Insufficient capacity or improper electrical works can
lead to electric shock or fire.
 Use only electrical cables that fulfil the specifications. All wiring on
site must be carried out in accordance with the connection
diagram attached to the product. Make sure that there are no
external forces acting on the terminals and wires. Improper wiring
and installation may cause a fire.
 Make sure the power cord, communication and controller wiring
are straight and level when you are working on the connections,
and the cover on the electric box is tight. If the electric box is not
closed properly, it may lead to electric shock, fire or overheating of
electrical components.
 If the refrigerant leaks during installation, open the doors and
windows immediately to ventilate the area. Refrigerant can
produce toxic gases when in contact with fire.
 Switch off the power supply before touching any electrical
component.
 Do not touch the switch with wet hands. This is to prevent electrical
shocks.
 Do not come in direct contact with the refrigerant leaking from the
connections of refrigerant piping. Otherwise, it may lead to
frostbite.
 The air conditioner must be grounded. Do not connect the earth
line (ground) to gas piping, water piping, lightning rods or
telephone earth lines. Improper grounding can lead to electric
shock or fire, and may cause mechanical failure due to current
surges from lightning and so on.
 The earth leakage circuit breaker must be installed. There is a risk
of electric shock or fire if the earth leakage circuit breaker is not
installed.
The appliance shall be installed in accordance with national wiring
regulations.
The appliance must be installed 2,3m above floor.
If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or a similarly qualified person in
order to avoid a hazard.
An all-pole disconnection switch having a contact separation of at
least 3mm in all poles should be connected in fixed wiring.
The temperature of refrigerant circuit will be high, please keep the
interconnection cable away from the copper tube.
The power cord type designation is H05RN-For above/H07RN-F.






Check the power supply before installation. Ensure that the power
supply must be reliably grounded following local, state and National
Electrical Codes. If not, for example, if the ground wire is detected
charged, installation is prohibited before it is rectified. Otherwise,
there is a risk of fire and electric shock, causing physical injury or
death.
Check the electric wire, water and gas pipeline layout inside the
wall, floor and ceiling before installation. Do not implement drilling
unless confirm safety with the user, especially for the hidden
power wire. An electroprobe can be used to test whether a wire is
passing by at the drilling location, to prevent physical injury or
death caused by insulation broken cords.


1. Before Installation ........................................................................4
2. Choosing an Installation Site ......................................................4
3. Indoor Unit Installation..................................................................4
4. Refrigerant Piping Installation ......................................................5
5. Water Discharge Piping Installation .............................................7
6. Electrical Wiring ...........................................................................7
7. On-site Configuration ................................................................. 9
8. Test Run.................................................................................... 10
9. Part Names .............................................................................. 12
11. Air Conditioner Operations and Performance ........................... 13
12. Adjusting Air Flow Direction ...................................................... 13
13. Maintenance.............................................................................. 14
14. Symptoms That Are Not Faults ................................................ 15
15. Troubleshooting ........................................................................ 15
Contents
10. The Explain Of The Display Panel..............................................12
Accessories........................................................................................3
Installation Manual..............................................................................1

3) where there are machines emitting electromagnetic waves.
Electromagnetic waves may interfere with the control
system, causing the unit to malfunction.
4) where there is a high salt content in the air. When exposed
to air with a high salt content, the mechanical parts will
experience accelerated ageing which will severely
compromise the service life of the unit.
5) Where there are major voltage fluctuations. Operating the
unit using a power supply system that has large voltage
fluctuations will reduce the service life of the electronic
components, and cause the unit's controller system to
malfunction.
6) where there is a risk of leakage of flammable gases.
Examples are sites that contain carbon fibres or combustible
dust in the air, or where there are volatile combustibles (such
as diluent or petrol). The above gases may cause explosion
and fire.
2
7) Do not touch the fins of the heat exchanger as this may lead to
injury.
8) Some products use the PP packing belt. Do not pull or tug on
the PP packing belt when you transport the product. It will be
dangerous if the packing belt breaks.
9) Note the recycling requirements for nails, wood, carton and
other packaging materials. Do not discard these materials
directly as these may lead to bodily harm.
10)Tear up the packaging bag for recycling to prevent children
from playing with it, and leading to suffocation.
11)The appliance shall not be installed in the laundry.

Code Note
2
1
1.Hook
3. Installation manual 1
Installation fittings
Others
2. Mounting screw(ST3.9× 25-C-H)
10
4. Remote alarm signal wires
5. Remote control signal wires 1
6. Flexible hose tube 1
2
7.Copper nut: Use for pipe connection
of engineering installation
Accessories
Verify that the air conditioner includes the following accessories.
Accessories to purchase locally
PVC pipe
for water
discharge
Choose and purchase copper pipes
that correspond to the length and size
calculated for the selected model in
the installation manual of the outdoor
unit and your actual project
requirements.
Inner diameter, 18 mm.
The inner diameter is based on the
diameter of the copper and PVC
pipes. The thickness of the pipe
casing is 10 mm or more. Increase
the thickness of the casing (20 mm
or thicker) when the temperature
exceeds 30°C or the humidity
exceeds RH80%.
To purchase based on
actual project
requirements.
Use to connect indoor
refrigerant piping.
Use to discharge
condensed water from
the indoor unit.
To purchase based on
actual project
requirements.
To purchase based on
actual project
requirements.
Protect piping from
condensation.
Name
Appearance Dimensions Qty
1Copper pipe
2
3
Insulation
casing for
piping
QuantityShapeName
Installation fittings
Others
Code Note
3

For wall installations, secure hook using 6 screws and the
indoor unit using 4 screws
Fix the hook with tapping screw onto the walll which can
support the weight of the indoor unit. (Refer to Figure 3.2)
Figure 3.1
Removing front grille
1) Open the front panel.
2) Remove the 4 screws and remove the front grille while pulling
it forward (3 tabs).

Figure 3.2
195mm
Hook
Tapping
screw
Washer
˘6mm
Figure 2.1
Figure 2.2
Figure 2.3
195mm
Hook
700mm 210mm
600mm

 

64
)007(
431
591
591
62
05
475
)006(
061
35
53
44
6
10
5
052
210
104
032
(unit: mm)
3. Indoor Unit Installation
1. Before Installation
Make sure you check the packaging during transportation. Claim
compensation for any damage from the carrier immediately.
Take note of the following when transporting the equipment:
2. Choosing an Installation Site
1 Fragile. Handle with care.
2 Determine the route to move the unit to the installation site.
3 Transport the equipment on the base of the original package as
much as possible.
4 When lifting the equipment, use a protective device to protect the
equipment, prevent damage, and always take note of where the
centre of gravity is.
Installation position must meet the following requirements:
1. There is enough space for installation and maintenance.
2. The air inlets and outlets will not interfere with one another. Impact
of external air flow is minimal.
3. Air from the unit can reach every part of the room.
4. Layout of connecting piping and water discharge piping is
convenient.
4

Hang the indoor unit on the hook. (Refer to Figure 3.3)
(The bottom of body can touch with floor or suspended,
but the body must install vertically.)
Figure 3.3

Figure 3.5
Attach the front panel and front grille in their original positions
once all connections are complete.
For floor i nstallations, secure the indoor unit using 6 screws.
(Do not forget to secure to the rear wall.) (Refer to Figure 3.5)
Figure 3.4
Using 4 screws to secrew the indoor unit. (Refer to
Figure 3.4)

4. Refrigerant Piping Installation
4.1 Length and Level Difference Requirements for the Piping
Connections to the Indoor and Outdoor Units
The length and level difference requirements for the refrigerant piping are
different for different indoor and outdoor units. Refer to the installation manual
of the outdoor unit.
4.2 Piping Material and Size
1. Piping material: Copper pipes for air handling.
2. Piping size: Choose and purchase copper pipes that correspond to the
length and size calculated for the selected model in the installation manual
of the outdoor unit and your actual project requirements.
4.3 Piping Layout
1. Seal the two ends of the piping properly before you connect the indoor and
outdoor piping. Once unsealed, connect the piping of the indoor and
outdoor units as quickly as possible to prevent dust or other debris from
entering the piping system via the unsealed ends, as this may cause the
system to malfunction.
2. If the piping needs to go through walls, drill the opening in the wall, and
place accessories like casings and covers for the opening properly.
3. Place the refrigerant connecting piping and the communication wiring for
the indoor and outdoor units together, and bundle them tightly to make sure
air does not enter and condensate to form water that may leak from the
system.
4. Insert the bundled piping and wiring from outside the room through the wall
opening into the room. Be careful when you lay out the piping. Do not
damage the piping.
4.4 Piping Installation
Refer to the installation manual attached with the outdoor unit on installation
of the refrigerant piping for the outdoor unit.
All gas and liquid piping must be properly insulated; otherwise, this may
cause water to leak. Use heat insulation materials that can withstand high
temperatures above 120°C to insulate the gas pipes. In addition, the
insulation of the refrigerant piping should be reinforced (20 mm or thicker) in
situations where there is high temperature and/or high humidity (when part
of refrigerant piping part is higher than 30°C or when the humidity exceeds
RH80%). Otherwise, the surface of the heat insulation material may be
exposed.The sizes of copper pipe see table 4.1 and position of gas&liquid
pipe see figure 4.1
Before the works are carried out, verify that the refrigerant is R410A. If the
wrong refrigerant is used, the unit may malfunction.
Other than the specified refrigerant, do not let air or other gases enter the
refrigeration circuit.
If the refrigerant leaks during installation, make sure you fully ventilate the
room.
Use two wrenches when you install or dismantle the piping, a common
wrench and a torque wrench. See Figure 4.2.
Figure 4.2
Torque wrench
Pipe socket cap
Pipe fittings
Normal wrench
 Slot the refrigerant piping into the brass nut (accessory 7), and expand the
pipe socket. Refer to the following table for the size of the pipe socket and
the appropriate tightening torque.
Figure 4.1
gas pipe
(the bigger one)
liquid pipe
(the slim one)
Table4.1
Pipe Material
Model
Size(mm) (Liquid side)
(Gas side)
Copper Pipe for Air Conditioner
Refrigerant
R410A
22~45


5

6
 Apply the appropriate tightening torque according to the installation
conditions. Excessive torque will damage the socket cap, and the cap will
not be tight if you apply insufficient torque, leading to leakages.
Do not let air, dust, and other particles invade the piping system during the
installation of the connecting pipes.
Install the connecting pips only when the indoor and outdoor units are
secured.
Make sure to keep the connecting pipes dry during installation so that no
water will enter the piping system.
Figure 4.7
Caution
Caution
1 Copper piping
2 Section being brazed
3 Nitrogen connection
4 Hand valve
5 Pressure-reducing valve
6 Nitrogen
Caution
ĭ6.4
ĭ9.5 32.7~39.9
ĭ15.9 61.8~75.4
ĭ19.1 97.2~118.6
14.2~17.2
ĭ12.7 49.5~60.3
4.7 Vacuum
Create a vacuum in the system according to the instructions in the installation
manual of the outdoor unit.
4.8 Refrigerant
Charge the system with refrigerant according to the instructions in the
installation manual of the outdoor unit.
-
4.6 Heat Insulation Treatment for Gas-Liquid Piping Connections
for the Indoor Unit
The heat insulation treatment is carried out on the piping at the gas and liquid
sides of the indoor unit respectively.
a.The piping on the gas side must use heat insulation material that can withstand
temperatures of 120°C and more.
b. For the piping connections of the indoor unit, use the insulation casing for
copper pipes to carry out the insulation treatment, and close all gaps.
Figure 4.5
Figure 4.6
Unit body
Attached insulation heat pump belt
On-site piping side
Face upwards
For the vacuum, make sure that the air and liquid cut-off valves of the
outdoor unit are all closed (maintain the factory status).
4.9 Connecting the Copper Pipes for the Indoor Unit
Charge the system with refrigerant according to the instructions in the
installation manual of the outdoor unit.
4.9.1 Open the front panel
Slide the two sliders to the left and right to unlock the panel.
4.9.2 Remove front panel
Open the front plate to remove the screws.
4.5 Air Tightness Test
Carry out the air tightness test on the system according to the instructions in the
installation manual of the outdoor unit.
Figure 4.3
Apply refrigerant oil
Before the socket cap is installed on the pipe socket, apply some refrigerant
oil on the socket (both inside and outside), then rotate it three or four times
before you tighten the cap. See Figure 4.3.
Precautions to take when welding the refrigerant pipes
 Before you weld the refrigerant pipes, fill the pipes with nitrogen first to
discharge the air in the pipes. If no nitrogen is filled during welding, a
large amount of oxide film will form inside the piping which may cause the
air conditioning system to malfunction.
 Welding can be carried out on the refrigerant pipes when the nitrogen gas
has been replaced or refilled.
 When the pipe is filled with nitrogen during welding, the nitrogen must be
reduced to 0.02 MPa using the pressure release valve. See Figure 4.4.
 The Air Tightness Test helps to ensure that the air and liquid cut-off
valves of the outdoor unit are all closed (maintain the factory defaults).
Outer diameter of
connecting piping (mm)
Tightening torque
(N.m)
Figure 4.4Fi
g
ure 4.4

1.5m~2m
Figure 4.8
5.3 Water Discharge Test
Figure 5.1
Figure 5.2
5. Water Discharge Piping Installation
Protection piping Wall
Water discharge pipe
Extended water discharge pipe
5.1 Water Discharge Piping Installation for Indoor Unit
Tilt the water discharge pipe downwards. Make sure the following
situations do not arise when the water discharge pipes are being
installed:
When connecting to a long water discharge pipe, the indoor unit portion
must be covered with insulation casing. Make sure the long pipe does not
become loose.
First install the indoor unit. Then install the outdoor unit. Be careful of bends
and adjust the pipeline accordingly.
Do not expose the pipeline at the back of the indoor unit.
Make sure the water discharge pipes are not loose and moving.
Make sure all the connections in the piping system are properly sealed to
prevent water leakages.
Bending
S-shape
Heat insulation material Slope
4.9.3 Remove front frame
Remove the front frame from the base of the unit. Turn it up by about 30°, and the
entire frame will then open.
Caution
Wire slot
Indoor power
supply
Outdoor power
supply
Indoor unit
Communication wire between
indoor and outdoor units
Grounding line
Grounding line
RCCB
RCCB
Figure 6.1
Once the water discharge piping is installed, inject a small amount of water
into the water pan to check if the drainage is smooth.
 The condensed water in the rear of the indoor unit is gathered in the
water pan and discharged from the piping. Do not place anything in
the water pan.
Caution
Warning
6. Electrical Wiring
 All the supplied parts, materials and electrical works must comply with local
regulations.
 Use only copper wires.
 Use a dedicated power supply for the air-conditioners. The power voltage
must be in line with the rated voltage.
 The electrical wiring works must be carried out by a professional technician,
and must comply with the labels stated in the circuit diagram.
 Before the electrical connection works are carried out, turn off the power
supply to prevent injuries caused by electric shock.
 The external power supply circuit of the air conditioner must include an
earth line, and the earth line of the power cord connecting to the indoor unit
must be securely connected to the earth line of the external power supply.
 Leakage protective devices must be configured according to the local
technical standards and requirements for electrical and electronic devices.
 The fixed wiring connected must be equipped with an all-pole disconnection
device with a minimum 3 mm contact separation.
 The distance between the power cord and signalling line must be at least
300 mm to prevent the occurrences of electrical interference, malfunction or
damage to electrical components. At the same time, these line must not
come in contact with the piping and valves.
 Choose electrical wiring that conforms to the corresponding electrical
requirements.
 Connect to the power supply only after all the wiring and connection works
have been completed, and carefully checked to be correct.
6.1 Power Cord Connection
Use a dedicated power supply for the indoor unit that is different
from the power supply for the outdoor unit.
Use the same power supply, circuit breaker and leakage protective
device for the indoor units connected to the same outdoor unit.
: Copper wire
Proper power wiring connections
POWER IN
PQE N
L
7
Figure 6.2
Figure 6.3 Figure 6.4
Figure 6.2 shows the power supply terminal of the indoor unit.
+
Power
cord
Insulation
tube
Circular wiring
terminal
When connecting to the power supply terminal, use the circular wiring
terminal with the insulation casing (see Figure 6.3).
If circular wiring terminal with the insulation casing cannot be used,
please make sure that:
 Do not connect two power cords with different diameters to the
same power supply terminal (may cause overheating of wires due
to loose wiring) (See Figure 6.4).
Use power cord that conforms to the specifications and connect
the power cord firmly. To prevent the cord from being pulled out by
external force, make sure it is fixed securely.

Table 6.2 Indoor units electrical characteristics
Capacity
IFM
Hz Volts
MCA MFA kW FLA
15
50
50/60
15
15
220 -240
15
0.37
0.40
0.42
0.53
0.02
0.02
0.02
0.02
0.29
0.32
0.33
0.42
Power supply
Table 6.1
Model 2.2-4.5kW
Power
supply 220-240V~50Hz
220-240V~50/60Hz
Communication wire between
indoor and outdoor units
Communication wire between
indoor unit and wired controller
Fuse 15A
Phase
Volt and frequency
1-phase
Switch (breakers for
Power supply
Breakers with
current leakage
All-pole disconnection
device with leakage
protecto
wiring and over current
protection)
LN
Indoor unit
Pull box
Indoor unit Indoor unit Indoor unit
Pull boxPull box
Warning
Figure 6.6
Figure 6.5
6.2 Electrical Wiring Specifications
Refer to local laws and regulations when deciding on the dimensions for
the power cords and wiring. Get a professional to select and install the
wiring.
Only the last indoor unit requires adding the build-out resistor
at P and Q.
(open)
Indoor and outdoor
units
Communication wire
(P Q E)
Connecting the shielded
layer of the shielded wire
(P Q E)
(Connect the shielded end of the shielded
wire to the electronic controller box sheet
metal " " here)
Signalling line
between outdoor
units
Outdoor
unit
P
Q
Build-out resistor
Shielded 3×AWG16-AWG18
AWG16-AWG20Shielded
220-240V~50/60Hz
220-240V~50Hz
Refer to Tables 6.1 and 6.2 for the specifications of the power cord
and communication wire. A wiring capacity that is too small will
cause the electrical wiring to become too hot, and lead to accidents
when the unit burns and becomes damaged.
FLA: Full Load Amps
Abbreviations:
MCA: Minimum Circuit Amps kW: Rated motor output
MFA: Maximum Fuse Amps
IFM: Indoor Fan Motor
6.3 Communication Wiring
Use only shielded wires for the communication wiring. Any other
type of wires may produce a signal interference that will cause the
units to malfunction.
Do not carry out electrical works like welding with the power on.
Do not bind the refrigerant piping, power cords and communication
wiring together. When the power cord and communication wiring
are parallel, the distance between the two lines must be 300 mm or
more in order to prevent signal source interference.
Communication wiring must not form a closed loop.
6.3.1 Communication wiring between the indoor and outdoor units
The indoor and outdoor units communicate via the RS485 serial port.
The communication wiring between the indoor and outdoor units should
be connected one unit after another in a daisy chain from the outdoor
unit to the final indoor unit.And the shielded layer must be properly
grounded, and a build-out resistor must be added to the last indoor unit
to enhance the stability of the communication system (see Figure 6.6).
Incorrect wiring such as a star connection or a closed ring will cause
instability of the communication system and system control anomalies.

Use a three core shielded wire (greater than or equal to 0.75 mm
for the communication wiring between the indoor and outdoor units.
Make sure the wiring is connected correctly. The connecting lead for
this communication wire must come from the master outdoor unit.
2
6.3.2 Communication wiring between the indoor unit and wired
controller
The wired controller and the indoor unit can be connected in different
manners, depending on the forms of communication.
1) For a bidirectional communication mode:
Use 1 wired controller to control 1 indoor unit or 2 wired controllers
(one master and one slave controller) to control 1 indoor unit
(see Figure 6.7);
Use 1 wired controller to control multiple indoor units or 2 wired
controllers (one master and one slave controller) to control
multiple indoor units (see Figure 6.8);


8
2.2KW
2.8KW
3.6KW
4.5KW
1. Select the wire diameters( minimum value) individually for each
unit based on the table 6.3.
2. Maximum allowable voltage range variation between phases is
2%.
3. Select circuit breaker that having a contact separation in all poles
not less than 3 mm providing full disconnection，where MFA is
used to select the current circuit breakers and residual current
operation breakers:
Table 6.3
All shielded wiring in the network are interconnected, and will
eventually connect to earth at the same point .
" "

Nominal cross-sectional area (mm2)
>3
>6
>10
>16
>25
>32
>50
and
and
and
and
and
and
and
3
6
10
16
25
32
50
63
0.75
1
1.5
2.5
4
6
10
and
and
and
and
and
and
and
1
1.5
2.5
4
6
10
16
0.5 and 0.75
Flexible cords Cable for fixed wiring
410 to
1.5 4 to
12.5 to
12.5 to
12.5 to
2.5 6 to
616 to
10 25 to
Rated current
of appliance（A）

temperature modification code
Air outlet selection switch
ON OFF
SW101
SW102 SW103
0
1
2
3
Indoor unit 1
Display board
A
B
C
D
Wired controller 1
A
B
C
D
ENC1 Settings for Capacity DIP Switch:
DIP Switch Code Capacity
Figure 6.7
Figure 6.8
For a unidirectional communication mode:
Use 1 wired controller to control 1 indoor unit (see Figure 6.9).
Figure 6.9
Figure 7.1
Indoor unit 1
Wired Controller 2
X2 X1
Wired Controller 1
X2 X1
Master wired controller Slave wired controller
D2
D1
X2 X1
Indoor unit 1
Wired Controller 2
X2 X1 D2 D1
Wired Controller 1
X2 X1 D2 D1
Indoor unit 2 Indoor unit n(n<=16)
X2 X1 X2 X1
D2 D1
D2
D1
X2 X1
D2 D1
Master wired controller Slave wired controller
For the specific connection method, refer to the instructions in the
corresponding wired controller manual to carry out the wiring and
connections.
Caution

6.4 Handling the Electrical Wiring Connection Points
Once the wiring and connections are done, use tie straps to
secure the wiring properly so that the connection joint cannot be
pulled apart by external force. The connection wiring must be
straight out so that the cover of the electrical box is level and can
be closed tightly.
Use professional insulation and sealing materials to seal and
protect the perforated wires. Poor sealing may lead to
condensation, and entry of small animals and insects that may
cause short circuits in parts of the electrical system, causing the
system to fail.
7.1 Capacity Settings
7. On-site Configuration
Set up the PCB board DIP switch on the indoor electric control box to
cater to different uses. Once the settings are done, make sure you
cut off the main power switch again, and then switch the power on. If
the power is not cut off and switched on again, the settings will not be
executed.
ENC1
POWER_S
7.3 DIP Switch Settings on Main Board
7.2 Address Settings
When this indoor unit is connected to the outdoor unit, the outdoor unit
will automatically allocate the address to the indoor unit. Alternatively,
you may use the controller to manually set the address.
The addresses of any two indoor units in the same system cannot
be the same.
The network address and the indoor unit address are the same,
and does not have to be configured separately.
Once the address settings are completed, mark the address of
each indoor unit to facilitate after-sales maintenance.
The centralized control of the indoor unit is completed on the
outdoor unit. For details, refer to the manual on the outdoor unit.
Caution
 Once the centralized control function for the indoor unit has been
completed on the outdoor unit, the DIP switch on main control
panel of the outdoor unit must be set to auto addressing;
otherwise, the indoor unit in the system are not controlled by the
centralized controller.
 The system can connect up to 64 indoor units (address 0~63) at
the same time. Each indoor unit can only have one address DIP
switch in the system. The addresses of any two indoor units in
the same system cannot be the same. Units that have the same
address may malfunction.




 The capacity DIP switches have been configured before delivery. Only a
professional maintenance personnel should change these settings.
Caution
9
2200W
2800W
3600W
4500W