mundoclima MVD CL23350 User manual

Cassette 4 Ways Compact MVD DC
Installation manual
English
CL23350 to CL23353
www.mundoclima.com
MVD

Be sure to be in conformity with the local, national and
international laws and regulations.
Read "PRECAUTIONS" carefully before installation.
The following precautions include important safty items.
Observe them and never forget.
Keep this manual with the owner's manual in a handy place
for future reference.
1. PRECAUTIONS
WARNING
The safty precautions listed here are divided into two categories. In
either case, important safty information is listed which must be read
carefully.
After completing the installation, make sure that the unit operates
properly during the start-up operation. Please instruct the customer
on how to operate the unit and keep it maintained.Also, inform
customers that they should store this installation manual along with
the owner's manual for future reference.
Be sure only trained and qualified service personnel to
install, repair or service the equipment.
Improper installation, repair, and maintenance may result in
electric shocks, short-circuit, leaks, fire or other damage to the
equipment.
Install according to this installation instructions strictly.
If installation is defective, it will cause water leakage, electrical
shock and fire.
When installing the unit in a small room, take measures
against to keep refrigerant concentration from exceeding
allowable safety limits in the event of refrigerant leakage.
Contact the place of purchase for information. Excessive
refrigerant in a closed ambient can lead to oxygen deficiency.
Failure to observe a warning may result in death.
Failure to observe a caution may result in injury or damage
to the equipment.
CONTENTS PAGE Use the attached accessories parts and specified parts for
installation.
otherwise, it will cause the set to fall, water leakage, electrical
shock fire.
Install at a strong and firm location which is able to
withstand the set' s weight.
If the strength is not enough or installation is not properly done,
the set will drop to cause injury.
The appliance must be installed 2.3m above floor.
The appliance shall not be installed in the laundry.
Before obtaining access to terminals, all supply circuits
must be disconnected.
The appliance must be positioned so that the plug is
accessible.
The enclosure of the appliance shall be marked by word, or
by symbols, with the direction of the fluid flow.
For electrical work, follow the local national wiring
standard, regulation and this installation instructions. An
independent circuit and single outlet must be used.
If electrical circuit capacity is not enough or defect in electrical
work, it will cause electrical shock and fire.
Use the specified cable and connect tightly and clamp the
cable so that no external force will be acted on the
terminal.
If connection or fixing is not perfect, it will cause heat-up or fire
at the connection.
Wiring routing must be properly arranged so that control
board cover is fixed properly.
If control board cover is not fixed perfectly, it will cause heat-up
at connection point of terminal, fire or electrical shock.
If the supply cord is damaged, it must be replaced by the
manufacture or its sevice agent or a similarly qualified
person in order to avoid a hazard.
An all-pole disconnection swith having a contact
separation of at least 3mm in all poles should be connected
in fixed wiring.
When carrying out piping connection, take care not to let
air substances go into refrigeration cycle.
Otherwise, it will cause lower capacity, abnormal high pressure
in the refrigeration cycle, explosion and injury.
Do not modify the length of the power supply cord or use
of extension cord, and do not share the single outlet with
other electrical appliances.
Otherwise, it will cause fire or electrical shock.
The temperture of refrigerant circuit will be high, please
keep the interconnection cable away from the copper tube.
The appliance shall be installed in accordance with
national wiring regulations.
An all-pole disconnection device which has at least 3mm
separation distance in all pole and a residual current
device(RCD)with the rating of above 10mA shall be
incorporated in the fixed wiring according to the national
rule.
The power cord type designation is H05RN-R/H07RN-F or
above.
CAUTION
WARNING
PRECAUTIONS........................................................................................1
INSTALLATION INFORMATION................................................................2
INSPECTING AND HANDLING THE UNIT.................................................2
ATTACHED FITTINGS..............................................................................3
INDOOR UNIT INSTALLATION.................................................................4
INSTALL THE CONNECTING PIPE...........................................................6
REFRIGERANT PIPE CONNECTION..........................................................7
CONNECT THE DRAIN PIPE.....................................................................8
WIRING...................................................................................................9
CONTROL..............................................................................................10
TROUBLE SHOOTING............................................................................12
TEST OPERATION.................................................................................12
Main board Code designation
Installation manual Cassette 4 ways compact
1

To install properly, please read this "installation manual" at
first.
The air conditioner must be installed by qualified persons.
When installing the indoor unit or its tubing, please follow
this manual as strictly as possible.
If the air conditioner is installed on a metal part of the
building, it must be electrically insulated according to the
relevant standards to electrical appliances.
When all the installation work is finished, please turn on the
power only after a thorough check.
Regret for no further announcement if there is any change
of this manual caused by product improvement.
2. INSTALLATION INFORMATION
INSTALLATION ORDER
Select the location;
Install the indoor unit;
Install the outdoor unit;
Install the connecting pipe ;
Connect the drain pipe;
Wiring;
Test operation.
Ground the air conditioner.
Do not connect the ground wire to gas or water pipes,lightning
rod or a telephone ground wire.Incomplete grounding may
result in electric shocks.
Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in
electric shocks.
Connect the outdoor unit wires , then connect the indoor
unit wires.
You are not allow to connect the air conditioner with the
power source until wiring and piping the air conditioner is
done.
While following the instructions in this installation
manual, install drain piping in order to ensure proper
drainage and insulate piping in order to prevent
condensation.
Improper drain piping may result in water leakage and
property damage.
Install the indoor and outdoor units, power supply wiring
and connecting wires at least 1 meter away from
televisions or radios in order to prevent image
interference or noise.
Depending on the radio waves, a distance of 1 meter may not
be sufficient enough to eliminate the noise.
The appliance is not intended for use by young children
or infirm persons without supervision.
Don't install the air conditioner in the following locations:
There is petrolatum existing.
There is salty air surrounding (near the coast).
There is caustic gas (the sulfide, for example) existing in
the air (near a hot spring).
The Volt vibrates violently (in the factories).
In buses or cabinets.
In kitchen where it is full of oil gas.
There is strong electromagnetic wave existing.
There are inflammable materials or gas.
There is acid or alkaline liquid evaporating.
Avoid installing it in a narrow sapce which has a high
requirement to noise.
Other special conditions.
Carry out the specified installation work after taking into
account strong winds, typhoons or earthquakes.
Improper installation work may result in the equipment falling
and causing accidents.
If the refrigerant leaks during installation, ventilate the
area immediately.
Toxic gas may be produced if the refrigerant comes into the
place contacting with fire.
After completing the installation work, check that the
refrigerant does not leak.
Toxic gas may be produced if the refrigerant leaks into the
room and comes into contact with a source of fire, such as a
fan heater, stove or cooker.
2. INSTALLATION INFORMATION
INSTALLATION ORDER
Select the location;
Install the indoor unit;
Install the outdoor unit;
Install the connecting pipe ;
Connect the drain pipe;
Wiring;
Test operation.
There is petrolatum existing.
There is salty air surrounding (near the coast).
There is caustic gas (the sulfide, for example) existing in
the air (near a hot spring).
The Volt vibrates violently (in the factories).
In buses or cabinets.
In kitchen where it is full of oil gas.
There is strong electromagnetic wave existing.
There are inflammable materials or gas.
There is acid or alkaline liquid evaporating.
CAUTION
Main board Code designation
3. INSPECTING AND HANDLING THE UNIT
At delivery, the package should be checked and any damage should
be reported immediately to the service agent.
When handling the unit, take into account the following:
Fragile, handle the unit with care.
Keep the unit upright in order to avoid compressor
damage.
Choose on before hand the path along which the unit is to be
brought in.
Move this unit as originally package as possible.
When lifting the unit , always use protectors to prevent belt
damage and pay attention to the position of the unit’s centre of
gravity.
1
2
3
4
Installation manual
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Cassette 4 ways compact

4. ATTACHED FITTINGS
Please check whether the following fittings are of full scope. If there are some spare fittings, please restore them carefully.
Fig.4-1
Never throw or beat the controller.
Before installation, operate the remote controller to determine its location in a
reception range.
Keep the remote controller at least 1m apart from the nearest TV set or stereo
equipment. (it is necessary to prevent image disturbances or noise interferences.)
Do not install the remote controller in a place exposed to direct sunlight or close to a
heating source, such as a stove.
Note that the positive and negative poles are right positions when loading batteries.
This manual is subject to changes due to technological improvement without further
notices.
Cautions on remote controller installation:
Remote
controller
Remote controller
holder
Mounting screw B
ST2.9x10-C-H
CANCEL
LOCK
SET TEMPERATURE(°C)
AUTO
COOL
DRY
HEAT
FAN
HIGH
MED
LOW
TEMP
MODE
SWING TIMER
RESET
ON/OFF FAN
SPEED
VENT
ECONOMIC
RUNNING
This manual
Four-way
Cassette
Four-way
Cassette (compact)
INSTALLATION FITTINGS
Tubing & Fittings
Remote controller & Its Frame
Drainpipe Fittings
Others
SHAPENAME
3. Soundproof / insulation sheath
6. Out-let pipe clasp
7.Tightening band
5. Out-let pipe sheath
4. Out-let pipe pipe
12. Installation manual
13. Signal line
8. Remote controller
9. Frame
10. Mounting screw
(ST2.9×
10-C-H)
11. Alkaline dry batteries (AM4)
1. Installation paper board
2. Bolt M6 4
1
2
1
1
1
5
1
1
2
2
1
1
2
1
1
5
1
1
2
2
1
11
14. Connective pipe for
restriction assembly 11
Main board Code designation
11
15.Copper nut ˄ Use for pipe
connection of engineering
installation ˅
Installation manual
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Cassette 4 ways compact

Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring at least 1 meter away from televisions
and radios. This is to prevent image interference and
noise in those electrical appliances. (Noise may be
generated depending on the conditions under which the
electric wave is generated, even if 1 meter is kept.)
5. INDOOR UNIT INSTALLATION
5.1 Installation place
(Refer to Fig.5-1,Fig.5-2,Fig.5-3 for specification.)
The indoor unit should be installed in a location that meets
the following reauirements:
5.2 Install the main body
Please cut a quadrangular hole of 600×600mm in the ceiling
according to the shape of the installation paper board.
(Refer to Fig.5-3,Fig.5-4)
The center of the hole should be at the same position of
that of the air conditioner body.
Determine the lengths and outlets of the connecting pipe,
drainpipe and cables.
To balance the ceiling and to avoid vibration, please
enforce the ceiling when necessary.
Please adjust the hexangular nuts on the four installation
hooks evenly, to ensure the balance of the body.
If the drainpipe is awry, leakage will be caused by the
malfunction of the water-level switch.
Adjust the position to ensure the gaps between the body
and the four sides of ceiling are even. The body's lower
part should sink into the ceiling for 10~12 mm (Refer to
Fig.5-5).
Use the transparent hose filled with water to check the
lever of the main body from the four sides or diagonal line
direction, the lever indicator also can check the lever from
four sides of the main body .(Refer to Fig.5-6)
Locate the air conditioner firmly by wrenching the nuts
after having adjusted the body's position well.
Please select the position of installation hooks according to
the hook holes on the installation board.
Drill four holes of Ø12mm, 50~50mm deep at the selected
positions on the ceiling. Then embed the expansible
hooks (fittings).
Face the concave side of the installation hooks toward the
expansible hooks. Determine the length of the installation
hooks from the height of ceiling, then cut off the
unnecessary part.
If the ceiling is extremely high, please determine the
length of the installation hook according to facts.
Cut the installation hook open in the middle position, then
use apropriate length of reinforcing rod (Ø12) to weld
together.
The length could be calculated from Refer to Fig.5-5:
Length=210+L(in general, L is half of the whole length of
the installation hook)
1
2
3
1
2
3
4
New built houses and ceilings
In the case of new built house, the hook can be embedded
in advance (refer to the A.b mentioned above). But it should
be strong enough to bear the indoor unit and will not
become loose because of concrete shrinking.
After installing the body, please fasten the installation paper
board onto the air conditioner with bolts(M6X16) to
determine in advance the sizes and positions of the hole
opening on ceiling.(Refer to Fig.5-8)
Refer to the A.c mentioned above for installation.
Remove the installation paper board.
Please first guarantee the flatness and horizontal of ceiling
when installing it.
Refer to the A.a mentioned above for others.
After installing the body, the four bolts(M6x12) must be
fastened to the air conditioner onto ensure the body is
grounded well.
CAUTION
CAUTION
The existing ceiling (to be horizontal)
Fig.5-2
Fig.5-1
0
8
2
A
Necessary room
Ground
Outlet
Outlet
0032>
Inlet
0
0
0
1>
>1000
>1000
0
00
1>
Main board Code designation
Avoid installing it in a narrow sapce which has a high
requirement to noise.
The ceiling is horizontal, and its structure can endure the
weight of the indoor unit.
The outlet and the inlet are not impeded, and the
influence of external air is the least.
The air flow can reach throughout the room.
The connecting pipe and drainpipe could be extracted out
easily.
There is no direct radiation from heaters.
Don't install it in a place whose air contains much salt. If
this can't be avoided, choose a anticorrosive model.
Installation manual
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Cassette 4 ways compact

Main board Code designation
Central hole
Hook hole
Installation paper board
Body
Fixing hole
installation paper board
523(Hook-location)
570(Body)
647(Panel)
Drain side
(Unit: mm)
545(Hook-location)
570(Body)
647(Panel)
Fig.5-3
Fig.5-4
Fig.5-5
Fig.5-6
Fig.5-7
Fig.5-8
Fig.5-9
Fig.5-10
All the pictures in this manual are for explanation
purpose only. They may be slightly different from the
air conditioner you purchased(depend on
model).The actual shape shall prevail.
NOTE
A
L
2
1-01
671
4
3
Colourless
trans parent pipe
Ceiling
Body
Ceiling
Panel
Hook
A
0
62
Nut
Body
600
)thgiehgn
il
i
e
c(H
Horizontal
indicator
45
5.3 Install The Panel
Remove the air-in grill.
Never put the panel face down on floor or against the
wall, or on bulgy objects.
Never crash or strike it.
Slide two grill switches toward the middle at the same time,
and then pull them up. (Refer to Fig.5-9)
Draw the grill up to an angle of about 45, and remove it.
(Refer to Fig.5-10)
1
CAUTION
Screw M5x16
(Accessory)
Grid switch

The installation cover of the swing motor must sink into
the corresponding water receiver.
Install the panel
Align the swing motor on the panel to the tubing joints of the
body properly. ( Refer to Fig.5-11)
Hang the four fixed rope of the main body to the installation
cover and the other three covers of the swing motor: (Refer
to Fig.5-11 and )
2
CAUTION
Installation manual
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Cassette 4 ways compact
IMPORTANT NOTE
60 (Electronic Exp. Valve Box EXV)
EXV Box
Liquid Connection
Gas Connection
Connective Pipe
The valve expansion box (EXV) must always be connected
using the supplied accessories. The box can be placed next
to the body of the unit (as manufactured) or a distance of 3 m.
(*Refer to IMPORTANT NOTE)

Fig.5-11
Fig.5-13
Fig.5-12
Body
Panel foam2 Ceiling
Panel foam
Air plate
Panel Panel foam1
Panel sealing foam
Inlet air
Outlet air
Ceiling Leakage
Dew
Install the panel on the main body with bolt (M5×16) and
washer. (Refer to Fig.5-11 )
Adjust the four panel hook screws to keep the panel
horizontal, and screw them up to the ceiling evenly.
Regulate the panel in the direction of the arrow in Fig.5-11.
slightly to fit the panel's center to the center of the ceiling's
opening. Guarantee that hooks of four corners are fixed well.
Keep fastening the screws under the panel hooks, until the
thickness of the sponge between the body and the panel's
outlet has been reduced to about 4~6mm. The edge of the
panel should contact with the ceiling well. (Refer to Fig.5-12)
3
4
Malfunction described in Fig.5-13 can be caused by
inappropriate tightness the screw.
If the gap between the panel and ceiling still exists after
fastening the screws, the height of the indoor unit should
be modified again. ( Refer to Fig.5-14-left)
You can modify the height of the indoor unit through the
openings on the panel's four corners, if the lift of the
indoor unit and the drainpipe is not influenced (Refer to
Fig.5-14-right).
Hang the air-in grill to the panel, then connect the lead
terminator of the swing motor and that of the control box
with corresponding terminators on the body respectively.
Relocate the air-in grid in the procedure of reversed order,
install the air-in grid.
Cover
Steel rope
Swing motor installation cover
1
2
3
Cover
Steel rope
Swing motor installation cover
1
2
3
Swing motor side
Drain side
Bolt, washer
4
3
Fig.5-14
Hexagon nut
Ceiling
Horizontal adjust ment
Please operate according
to the direction of the arrow,
or it can not be disassembled
when it is necessary.
Connect the indoor unit at first, then the outdoor unit.
Bend the tubing in proper way. Dont harm them.
Daub the surfaces of the flare pipe and the joint nuts with frozen
oil, and wrench it for 3~4rounds with hands before fasten the
flare nuts. (Refer to Fig.6-1)
Be sure to use two wrenches simultaneously when you connect
or disconnect the pipes.
The stop valve of the outdoor unit should be closed absolutely
(as original state). Every time you connect it, first loosen the nuts
at the part of stop valve, then connect the flare pipe immediately
(in 5 minutes). If the nuts have been loosened for a long time,
dusts and other impurities may enter the pipe system and may
cause malfunction later. So please expel the air out of the pipe
with refrigerant before connection.
Expeltheair(refertothe“ExpelTheAir”)afterconnectingtherefriger-
ant pipe with the indoor unit and the outdoor unit.Then fasten the
nuts at the repair-points.
Notices For Benable pipe.
The bending angle should not exceed 90°C
Bending position is preferably in the bendable pipe. The larger
the better it is .
Do not bend the pipe more than three times.
Bend the connecting pipe of small wall thickness.
Cut out a desired concave at the bending part of the insulating
pipe.
Then expose the pipe(cover it with tapes after bending).
To prevent collapsing of deforming, please bend the pipe at its
biggest radius.
Use bender to get a small radius pipes.
Use the market brass pipe.
Be sure to use the same insulating materials when you buy the
brass pipe. (More than 9mm thick).
●
●
●
●
●
●
●
●
●
Ĺ
●
ķ
ĸ
6. INSTALL THE CONNECTING PIPE
Check whether the height drop between the indoor unit and
outdoor unit, the length of refrigerant pipe, and the number of the
bends meet the following requirements:
The max height drop and The length of refrigerant pipe deponding
on the ouotdoor unit.(If the height drop is more than 10m, you
had better put the outdoor unit over above the indoor unit.)
The number bends fewer than 15
Do not let air, dust, or other impurities fall in the pipe system
during the time of installation.
The connecting pipe should not be installed until the indoor and
outdoor units have been fixed already.
Keep the connecting pipe dry, and do not let moisture in during
installation.
The Procedure of Connecting Pipes
Measure the necessary length of the connecting pipe, and make
it by the following way.
●
●
●
●
●
Main board Code designation
Installation manual
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Cassette 4 ways compact

7. REFRIGERANT PIPE CONNECTION
7.1 Expel The Air
Locate The Pipe
Drill a hole in the wall (suitable just for the size of the wall conduit,
90mm in general), then set on the fittings such as the wall conduit
and its cover.
Bind the connecting pipe and the cables together tightly with
binding tapes. Do not let air in, which will cause water leakage
by condensation.
Pass the bound connecting pipe through the wall conduit from
outside. Be careful of the pipe all ocation to do no damage to the
tubing.
Connect the pipes.
Then,openthestemofstopvalvesoftheoutdoorunittomakethere-
frigerant pipe connecting the indoor unit with the outdoor unit
fluently flow.
Be sure of no leakage by checking it with leak detector or soap
water.
Cover the joint of the connecting pipe to the indoor unit with the
sound proof/insulating sheath (fittings), and bind it well with the
tapes to prevent leakage.
●
●
●
●
●
Flaring
Cut a pipe with a pipe cutter.
Insert a flare nut into a pipe and flare the pipe.
Fig.7-1
Fig.7-2
Fig.6-1
Use frozen oil
Bend the pipe with thumb
Make the ends
straight
Fig.6-3
Fig.6-2
R0.4~0.8
45°±2
90 °
±4
A

Lean crude burr
●
●
Fasten the nut
Put the connecting tubing at the proper position, wrench the
nuts with hands then fasten it with a wrench. (Refer to
Fig.7-3 )
Too large torque will harm the bellmouthing and too small will
cause leakage. Please determine the torque according to
Table.7-2.
Outside diameter
A(mm)
Max
8.7Φ6.4mm
Φ9.5mm
Φ12.7mm
Φ15.9mm
Φ19.1mm
12.4
15.8
19.0
23.3
8.3
12.0
15.4
18.6
22.9
Min
Table.7-1
TorqueTubing size
14.2~17.2N.m
32.7~39.9N.m
49.5~60.3N.m
61.8~75.4N.m
97.2~118.6N.m
Φ6.4mm
Φ9.5mm
Φ12.7mm
Φ15.9mm
Φ19.1mm
Table.7-2
Fig.7-3
Main board Code designation
Installation manual
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Cassette 4 ways compact

8. CONNECT THE DRAIN PIPE
8.1 Install The Drainpipe Of The Indoor Unit
●
●
●
●
●
●
The necessary filling amount of refrigerant
Refrigerant volume to be added is calculated according to
outdoor unit installation manual .Be sure to add refrigerant
measuring by a scale. L: The length of the pipe
Please record the quantity added and store it carefully for future
maintenance.
Expel the air with a vacuum pump (Refer to
Fig.7-4 ) (Please
refer to its manual for the way of using manifold valve)
Loosen and remove the maintenance nuts of stop valves A and
B,andconnectthechargehoseofthemanifoldvalvewiththemain-
tenance terminator of stop valve A. (Be sure that stop valves
A and B are both closed)
Connect the joint of the charge hose with the vacuum pump.
Open the Lo-lever of the manifold valve completely.
Turn on the vacuum pump. At the beginning of pumping, loosen
the maintenance terminator nut of stop valve B a little to check
whether the air comes in (the sound of the pump changes, and
the indicator of compound meter turns below zero). Then fasten
the nut.
All the stop valves should be opened before test operation.
Each air conditioner has two stop valves of different sizes on
the side of the outdoor unit which operate as Lo-stop value,
respectively. (Refer to
Fig.7-5 )
●
●
●
●
When the pumping has finished, close the Lo-lever of the
manifold valve completely and turn off the vacuum pump.
When you have pumped for over 15 minutes, please confirm
that the indicator of multimeter is on -1.0X105Pa (-76cmHg)
Loosen and remove the quadrangle cover of stop valves A
and B to open stop valve A and B completely, then fasten them.
Disassemble the charge hose from the repair-mouth of stop
valve A, and fasten the nut.
-76 cmHg
Lo-lever Hi-lever
Charge hose Charge hose
Vacuum pump
Lo-lever
Manifold valve
Multi-meter Pressure meter
Flare nut
Stopper
Cap
Valve body
Valve stem
Fig.7-4
Fig.7-5
Check all the joints with the leak detector or soap water. (See
Fig.7-6 as a reference illustration)
7.2 Check The Leakage
BA
DC
Check-point of indoor unit
Check-point of outdoor unit
A......Lo-stop valve B......Hi-stop valve
C,D..Joints of the connecting pipe to the indoor unit.
Fig.7-6
Be sure to with insulating materials cover all the exposed parts
of the flare pipe joints and refrigerant pipe on the liquid-side and
the gas-side. Ensure that there is no gap between them.
Incomplete insulation may cause water condensation.
7.3 Insulation
1) The drainpipe can use PVC pipe (external diameter about 37
39mm, inner diameter is 32mm).
2) Joint drainpipe connector to the end side of water pumping pipe,
and fix drainpipe together with water outflow pipe and thermal
insulation tube by clasp of water outflow pipe (attached).
CAUTION
Don’t use forcing strength to crack the water-pumping pipe.
CAUTION
3) Water-pumping pipe and drainpipe from main body must be
wrapped by insulation tube evenly, and bound by tighten band
for obstructing air getting in and coagulation.
4) Prevent from water backflow into unit inside during
shutdown, the drain pipe shall place down side and drain water
to outdoor (drain side), the gradient of the drain pipe should be
higher than (1/100), without salient and water remain.(Refer to
Fig.8-1 a)
Main board Code designation
Installation manual
8
Cassette 4 ways compact

8.2 Drainage Test
Check whether the drainpipe is unhindered
New built house should have this test done before paving
the ceiling.
1 Remove the test cover, and stow water of about 2000ml
to the water receiver through the stow tube.
2 Turn on the power, and operate the air conditioner
under the "COOLING" mode. Listen to the sound of the
drain pump. Check whether the water is discharged well (a
lag of 1min is allowed before discharging, according to the
length of the drain pipe), and check whether water
leaksfrom the joints.
CAUTIONS: If there is any malfunction, please resolve it
immediately.
3 Stop the air conditioner for there minutes, check if
everything is ok. If the drain hose is located unreasonable,
water overflow will cause the Alarm indicator lamp flashing
(For both cooling and heating type or cooling only type),
even the water leak out from the water receiver.
4 Check the drain pump whether drain water immediately
when alarm sound for the high water lever. If the water
lever can't come down below to the limited water lever, the
air conditioner will stop. Restart it until turn off the power
and drain off all the water.
5Turn off the power, drain the water away.
The drain plug is used to empty the water-receiver for maintenance
of the air conditioner. Please stuff it imposition at all times during
operation to avoid leakage.
●
●
●
●
●
●
Caution
The air conditioner should use separate power supply with rated
voltage, the voltage of power supply must be within90%~110%
of rated value.
The external power supply to the air conditioner should have
ground wiring, which is linked to the ground wiring of the indoor
and outdoor unit.
The wiring work should be done by qualified persons according
to circuit drawing.
A disconnection device having an air gap contact separation in
all active conductors should in corporated in the fixed wiring
according to the National wiring regulation.
Be sure to locate the power wiring and the signal wiring well to
avoid cross-disturbance and their contact with connecting pipe
or stop valve body.
The wiring attached to this air conditioner is 6m long. Be sure
toprolongitwithwiringofthesametypeandproperlengthifneces-
sary. Generally, do not twist two wiring together unless the joint
is soldered well and covered with insulator tape.
Do not turn on the power until you have checked carefully after
wiring.
The yellow and green wire can only be used to link to the ground
wiring.
The Specification of Power
●
●
9. WIRING
5) When connecting drainpipe, don’t drag the pipe that would pull
the main unit. For this, please arrange bearing points every 0.8 to
1.0 meter to avoid pipe be bended (See Fig.8-1 b).
6) When connect a lengthen drainpipe, apply protective tube to
wrap its indoor parts for ensuring the lengthen part connected
tightly.
7) In case the drainpipe outlet is higher than pumping connective
pipe of the main body, the drainpipe must be arranged upwards
vertically by using connective assembly of the water outlet for
vertical bending, and the height of the drainpipe shall set to the
defrosting pan surface no more than 600mm, otherwise, too much
backflow while shutdown would leads to overflow (Refer to
Fig.8-2).
8) Base on the actual requirement to bend piping, and use
connective assembly of water outlet in terminal box for pipe layout.
CAUTION
The joints in drain system must be sealed to avoid water leakage.
9) The height from floor to the end of drainpipe or the bottom of
drain slot must more than 50 mm. Don’t immerse the end of
drainpipe or the bottom of drain slot into water. When drain
condensate liquid to raceway, please bend the drainpipe to a
U-sharped hydroseal for avoiding stench transmitted by drainpipe
to indoor.
ЊP
D
!P
E
Fig.8-1
Gradient:
higher than 1/100
E
<200mm
Lean over 1/100
Pump-pipe clasp
(the fittings)
0.8-1.0m
Fig.8-2
Max. 600mm
Main board Code designation
Installation manual
9
Cassette 4 ways compact

NOTE
Please remember the surroundings (environmental
temperature, direct sunlight, rain etc.)
We consider the minimal size of the metal core as the wire
size. So it is recommended you adopt a thicker one as the
power conducting wire so as to avoid power decrease;
Connect the grounded wire to both indoor and outdoor
units;
This chart is just an on-site wire-connecting example.
For details, please refer to relative National criteria.
Indoor
Unit
Outdoor
Unit
A
B
Distance between outdoor unit and the farthest indoor
unit ӊ1200m (Note: The length of signal wire depends
on actual wiring condition, not longer than 1200m)
Entrance
of the Indoor Unit
Entrance
of the outdoor Unit
A, Bӊ20m
Wiring chart
CE NTR AL CONTROL
MONITOR(CCM)
OUTDOOR UNIT
COM PUTER
INDOORUNIT
INDOORUNIT
INDOORUNIT
Power (220-240V ~ 50Hz)
(208-230V ~ 60Hz)
Fig.9-1
The reserved function
is indicated in broken
line table, users can
select it when
necessary
3-core shielded wire
A disconnection device having an air gap contact separation in
all active conductors should be incorporated in the fixed wiring
according to the National Wiring Regulation.
Ground the air conditioner properly to obtain a good anti-
interference effect .
CAUTION
Model(W) 1500~5600
15/15
3×2.0
Circuit breaker/fuse (A)
Indoor unit power wiring (mm2)
Indoor/outdoor
connecting wiring(mm2)
(weak electric signal)
Power
Phase 1-Phase
220-240~50Hz
Frequency and volt
Table.9-1
3-core shielded wire
3×0.5
NOTE
The air-conditioners can connect with Central Control
Monitor (CCM). Before operation, please wiring correctly
and set system address and network address of indoor
units.
Terminal board diagram
Please refer to the indoor unit wiring diagram for the wiring.
<*
/1
;7
TO INDOOR POWER
220-240V~50Hz
Fig.9-2
Fig.9-3
10. CONTROL
Display
board
Wire
controller
To wire controller
The reserved wire control
function is indicated in broken
table, user can purchase the
wire controller when necessary. Fig.9-4
Capacity set
Hoursepower code
Main board Code designation
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
ENC1
POWER_S
Installation manual
10
Cassette 4 ways compact
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%/8(
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PQ
XYE
<(//2:
*5$<
TO OUTDOOR
COMM. BUS
To Central Control Monitor
(CCM)COMM. BUS
;7
Please use 3-core shielded wire
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E
ENC1 Dial switch
Code
1
2
3
Capacity (Horsepower)
2800W(1.0HP)
3600W(1.2HP)
4500W(1.7HP)
Horsepower setting
Note: The horsepower
has been set before
leaving the factory ,
which can only be
modified by
professionals.
02200W(0.8HP)
F1500W(0.6HP)
45600W(2.0HP)

Installation manual
11
Switch setting
Cassette 4 ways compact
00 means shutting down the
10 means shutting down the
11 means shutting down the
unit to “stop cold air” at 15
01 means shutting down the
unit to “stop cold air” at 20
unit to “stop cold air” at 24
unit to “stop cold air” at 26
00 means temp. compensation
value is 6đunder heat mode
01 means temp. compensation
value is 2đunder heat mode
10 means temp. compensation
value is 4đunder heat mode
11 means temp. compensation
value is 8đunder heat mode
00 means the time of stopping
TERMAL fan is 4 minutes
01 means the time of stopping
TERMAL fan is 8 minutes
10 means the time of stopping
TERMAL fan is 12 minutes
11 means the time of stopping
TERMAL fan is 16 minutes
definition
means 0
means 1
00 = Normal (by default)
01 = Ultra Low Wind
S1 Definition: Setting wind speed
SW2 Definition: Setting anti cold air mode
SW3 Definition: Setting Termal Fan On/Off Interval
SW4 Definition: Heat mode temp. compensation
(by default)
(by default)
(by default)
Note: To make the addressing you can contact with
Mundoclima after sales service.
If the outdoor unit has Auto-address function is not necessary to
set manually the indoor unit address.
If the outdoor unit does not have the Auto-address function or if
you want to set the address manually, it should be done by
remote control (wireless or wired).
When connecting a centralized control, if all indoor units are
MVD D4+ or MVD DC series, the central control can be
connected directly to terminals XYE of the outdoor unit, you
must activate the Auto-address dip-switch (except 3 pipes system).
Indoor unit address set
The system together have 64units (0-63), everyone has only
system addresscode,If two addresses are the same in one
system, the abnormal operation will occur.
Please switch off the power before setting,otherwise the
unexpected error will occur.
CAUTION

Table.11-1
11. TROUBLE SHOOTING 12. TEST OPERATION
The test operation must be carried out after the entire installation
has been completed.
Please confirm the following points before the test operation:
The indoor unit and outdoor unit are installed properly.
Tubing and wiring are correctly completed.
The refrigerant pipe system is leakage-checked.
The drainage is unimpeded.
The heating insulation works well.
The ground wiring is connected correctly.
The length of the tubing and the added stow capacity of the
refrigerant have been recorded.
The power voltage fits the rated voltage of the air conditioner.
There is no obstacle at the outlet and inlet of the outdoor and
indoor and indoor units.
The gas-side and liquid-side stop values are both opened.
The air conditioner is pre-heated by turning on the power.
●
●
●
●
●
●
●
●
●
●
●
Test operation
Set the air conditioner under the mode of “COOLING”with the
remotecontroller,and checkthefollowingpointsperthe“Owner’s
Manual”If there is any malfunction, please resolve it as per
chapter “Troubles And Causes ”.
The indoor unit
Whether the switch on the remote controller works well.
Whether the buttons on the remote controller works well.
Whether the air flow louver moves normally.
Whether the room temperature is adjusted well.
Whether the indicator lights normally.
Whether the temporary buttons works well.
Whether the drainage is normal.
Whether there is vibration or abnormal noise during operation.
Whether the air conditioner heats well in the case of the
HEATING/COOLING type.
The outdoor unit
Whether there is vibration or abnormal noise during operation.
Whether the generated wind, noise, or condensed of by the air
conditioner have influenced your neighborhood.
Whether any of the refrigerant is leaked.
●
●
Protection function will delay the startup of compressor for 3
minutes in case the unit is turned on immediately after power
on or restarted after shutdown.
CAUTION
Main board Code designation
Installation manual
12
Cassette 4 ways compact
NO. Error code Indication
Timer LED and run LED
flash together,or show
"FE"
Communication error between
indoor and outdoor unit
DC FAN error
1
2
3
4
5
7
6
No address when first time
power on
Defrost LED flash
or show "E0"
Timer LED flash
or show "E1"
Run LED flash
or show "E2"
Run LED flash
or show "E3"
Run LED flash
or show "E4"
Timer LED flash slowly
or show "E6"
Defrost LED flash slowly
or show "E7"
Alarm LED flash slowly
or show "Ed"
Alarm LED flash
or show "EE"
Mode conflict
Temp.sensor (T1) error
Temp.sensor (T2) error
Temp.sensor (T2B) error
8
9
10
EEPROM error
Outdoor unit error
Water level alarm

ASK FOR MORE INFORMATION
Phone: [phone]
eMail: [email protected]
TECHNICAL ASSISTANCE
Phone: [phone]
www.mundoclima.com
MVD