Kaysun KPDHF-400 User manual

INSTALLATION MANUAL
Split Duct Air Conditioner
KPDHF-400 DN2.4 KPDHF-450 DN2.4 KPDHF-560 DN2.4
The Digital Scroll and DC/AC Inverter share the same indoor units.
Thank you very much for purchasing our air conditioner. Before using your air
conditioner, please read this manual carefully and keep it for future reference.

CONTENTS
PAGE
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 appliance shall be installed in accordance with national
wiring regulations.
The temperature of refrigerant circuit will be high, please keep
the interconnection cable away from the copper tube.
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.
Indoor Unit
●
●
Enough room for installation and maintenance.
The ceiling is horizontal and it can afford the weight of the indoor
unit.
●
The air inlet and outlet are not impeded and does not affected by
outdoor air too much.
To install properly, please read this manual at first.
●
●
The air flow can reach every part of the room.
The air conditioner must be installed by qualified persons.
The connecting pipe and drainpipe can be easily extracted out.
When installing the indoor unit or its tubing, please follow this
manual as strictly as possible.
●
There is no direct radiation from heat source.
Outdoor Unit
When all the installation work is finished, please turn on the power
only after a thorough check.
No further announcement if there is any change of this manual
caused by product improvement.
●
●
Enough room for installation and maintenance.
The air inlet and outlet are not impeded and does not affected by
outdoor air too much.
NOTE
The installor should illustrate to users how to correctly use
and maintain the air-conditioner, as well as remind users to
carefully read and keep both Installation Manual and Owner's
Manual well.
●
●
●
Dry and well ventilated place.
The supporter is flat and horizontal and can afford the weigh of
outdoor unit, without noise and vibration.
CAUTION
The noise and the outlet air will not influence your neighbor.
No combustible gas.
DISPOSAL：Do not dispose this product as unsorted municipal
waste. Collection of such waste separately for special treatment
is necessary.
●
●
●
Place convenient for piping and wiring.
Please keep away from the following places, or malfunction may
be caused.(if unavoidable, please consult the professionals):
There is mineral oil like the oil of cutting machine.
There is much salty air. (Near the coast)
There is caustic gas such as sulfuric gas. (Near the hotspring.)
Factory where the voltage fluctuate greatly.
In the car or in the cabin.
Thisapplianceisnotintendedforusebypersons(includingchildren)
with reduced physical, sensory or mental capabilities, or lack of
esperienceandknowledge,unlesstheyhavebeengivensupervision
or instruction concerning use of the appliance by a person responsible
for their safety.
●
●
●
●
●
Children should be supervised to ensure that they do not play with
the appliance.
In the kitchen or a place full of oil steam.
There is strong electromagnetic wave.
Disconnect the power supply before cleaning and maintenance.
The appliance must be installed 2,3m above floor.
The appliance shall not be installed in the laundry.
●
●
There is combustible gas or materials.
installation manual

●
●
●
There is much evaporating acid or alkaline gas.
Other special areas.
The following are selectable accessories
Remote controller & Its Frame
Notes Before Installation
1. Remote controller....................................1
Select the correct carry-in path.
●
●
Move this unit as originally packaged as possible.
2. Remote controller holder.........................1
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.
3. Mounting screw
●
Avoid installing it in a narrow sapce which has a high requirement
to noise.
(ST2.9x10-C-H)........................................2
4. Alkaline dry battery(AM4)
..................................................................2
NOTE
Remark per EMC Directive 89/336/EEC
Fo r to prev en t fl ick er i mp ress io ns du ring the s tart of t he
compressor (technical process), following installation condi-
tions apply.
3
Mounting screw
●
The power connection for the air conditioner has to be done
at the main power distribution.The distribution has to be of
a low impedance, normally the required impedance reaches
at a 32A fusing point.
1
Remote
2 Remote controller
holder
controller
Fig.3-1
●
●
No other e quipm ent has to be con necte d with this power
line.
Cautions on remote controller installation
Never throw or beat the controller.
For detailed installation acceptance, please refer to your
contract with the power supplier if restrictions do apply for
products like washing machines, air conditi oners or
electrical ovens.
●
●
Before installation, operate the remote controller to determine
its location in a reception range.
●
●
For po wer details o f the air con dition er, refer to the rating
plate of the product.
●
●
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.)
For any question contact your local dealer.
Do not install the remote controller in a place exposed to
direct sunlight or close to a heatingsource, such as a stove.
Note that the positive and negative poles are in right positions
when loading batteries.
Table.3-1
Name of
Accessories
Q‘ty Outline
Usage
Installation manual
1
1
(This manual)
Wire control the
air-conditioner
Wire controller
Installing Φ10 Hanging Screw Bolts (4 Bolts)
Pipe insulation material
4
Heat insulation
Pleas e refer to the following figure for the distance
measurement between the screw bolts.
Chucking the joint which
connect the drain hose
and the outlet of indoor
unit
Clasp
1
Please install with screw bolts.
The handling to the ceiling varies from the constructions, consult
the construction personnels for the specific procedures.
Water connecting pipe
1
To connect drain pipe
The indoor unit which at
the terminal of
communication system
shouldconnect a
impedance between port
P and port Q
●
The size of the ceiling to be handled.Do keep the ceiling flat. Con-
solidate the roof beam for possible vibration.
1
2
Network matching wire
Branch header package
●
●
Cut off the roof beam.
Strengthen the place cut off, and consolidate the roof beam.
To connect the AB system
Carry out the pipe and line operation in the ceiling after
finishing the installation of the main body. While choosing where
to start the operation, determine the direction of the pipes to be
drawn out. Especially in case there is a ceiling, position the
refrigerant pipes, drain pipes, indoor & outdoor lines to the connec-
tion places before hanging up the machine.
To connect the throttle
components.
EXV connecting pipe ass'y
Copper nut
2
Use for pipe connection
of engineering installation
2
The installation of hanging screw bolts.
installation manual

Wooden construction
The positioning of ceiling hole and indoor unit and hanging
screw bolts
Put the square timber traversely overthe roof beam, then
install the hanging screw bolts. (Refer to Fig.4-1)
routine method of installation: the size of installation for indoor
unit following the Fig.4-6 and Fig.4-9
Timber over the beam
Unit: mm
540
540
Roof beam
Ceiling
Hanging screw bolts
A1
A2
A3
Fig.4-1
New concrete bricks
B1 B2 B3
Inlaying or embedding the screw bolts (Refer to Fig.4-2)
213
1830
1970
Blade shape insertion
Slide insertion
Fig.4-2
Front view (Air supply outlet)
For original concrete bricks
40kW，50Hz
45kW，50Hz
56kW，50Hz
40kW，60Hz
45kW，60Hz
A1
A2
A3
B1
B2
B3
360
394
364
334
247
217
187
Use embeding screw bold, crock and stick harmness (refer
to Fig.4-3)
330
300
210
180
150
Steel bar
Fig.4-6
Embedding screw bolt
(Pipe hanging and embedding screw bolt)
Fig.4-3
Steel roof beam structre
Install and use directly the supporting angle steel. (refer to
Fig.4-4)
Hanging screw bolt
Supporting
angle steel
1895
Hanging bolts
Fig.4-7
Fig.4-4
Overhanging the indoor unit
●
●
Overhang the indoor unit onto the hanging screw bolts with
block.
Position the indoor unit in a flat level by using the level indicator,
unless it may cause leakage.
Screw nut
washer
Overhang part
Hanging
screw bolt
Fig.4-8
Fig.4-5
Install the main body
142
315
315
214
50
315
315
●
●
Installing the canvas air passage
Pipe Connection
The static pressure outside the unit is 200Pa , the length of
the air pipe attached is determined by this parameter.
●
The positioning of ceiling hole and indoor unit and hanging
screw bolts
Routine method of installation: the size of installation for indoor
①
Rear view (Air return vent)
unit following Fig.4-6
Fig.4-9
②
③
Please install with Φ10 hanging screw bolts.
CAUTION
Carry out the pipe and line operation in the ceiling after finishing
the installation of the main body. While choosing where to start
the operation, determine the direction of the position the
refrigerant pipes, drain pipes, indoor & outdoor lines and line-
controlled lines to the connection places before.
Please shut down the unit and cut off power cable before maintain
the motor.
installation manual

NOTE
During teardown and installation, the scroll was allowed direct
support by hand
Cover the pipe before connecting to keep rubbish, dust or other
impurities out.
As there is no dust filter on the indoor unit, other places which
are easy to maintaining such as inhalant duct should be
installed with dust filter. (Without dust filter, dust adherent on
the air heat exchanger may cause failure and water-leak.
Fan subassembly is more weightiness, please take careful
during teardown and installation, and keep from hurt by fan
subassembly.
Key points of duct connection
Canvas tie-in
Canvas tie-in
Confirm that there is enough room for installation and mainte-
nance.
Isolation booth
Air outlet
Isolation booth
Air inlet
checking orifice
Maintenance roomage
Maintenance roomage
Air dust filter
Fig.7-1
NOTE
Other assemblies should be prepared on spot except air
conditioner main body.
600mmX600mm
checking orifice
High Static Pressure Type
40KW/h(50Hz)
45KW/h(50Hz)
Fig.5-1
Low speed
300
Midium speed
280
High speed
260
240
220
200
180
Confirm the minimum
drain tilt is 1/100 or more
checking orifice
160
140
120
100
80
Fig.5-2
60
40
20
0
4000 4500 5000 5500 6000 6500 7000 7500 8000 8500
Q(m3/h)
Fig.7-2
56KW/h(50Hz)
Low speed
Cover the pipe before connecting to keep rubbish, dust or other
impurities out.
Midium speed
300
280
High speed
Pipeline to connect the reference air conditioner outdoor unit
requirements.
260
240
220
200
180
160
140
120
100
80
60
40
20
0
6000 65007000 7500 8000 8500 9000 9500100001050011000
Q(m3/h)
Fig.7-3
installation manual

40KW/h(60Hz)
45KW/h(60Hz)
●
Hang up the outside frame until it sticks to the ceiling tightly.
Low speed
Midium speed
300
280
High speed
260
240
220
Main body
Air passage
Canvas air passage
200
180
160
140
120
100
80
Ceiling
Outside frame
Fig.7-9
60
40
20
0
Fig.7-4
●
Fix the main body and the outside frame with the fix board of
waist-shape hole (in two places).
2000 3000 4000 5000 6000 7000 8000 90001000011000
Q(m
3
/h)
Hang one side of the fix board of the waist-shaped hole on the
hook of the main body.
①
②
Panel installation
●
Unload inner frame.
Tighten the other side of the board with screw to the outside
frame.
Slide the knob, release the buckle from the outside frame hole,
then unload the inner frame.
③
④
Cut off the surplus part of the board with pliers.
Bend the top of the broken end.
Inside frame
Knob
Buckle
NOTE
Outside frame
Fig.7-5
When h angi ng up th e out side f ra me wi th t he f ix b oard o f
wais t-sh aped hole a nd the b elt, sti ck the o utsi de frame
tightly to the ceiling and fix it.
●
Hang the outside frame on the main body with face down. (4
places at 4 corners).
Hang the belt on the hook of the main body.
Hook
Waist-shaped hole
fixed board
Main body
Canvas air passage
Outside frame
Waist-shaped hole
fixed board
Bend
Ceiling
Fig.7-10
Outside frame
Fig.7-6
●
Install the inner frame on the outside frame (the inverse sequence
of unloading the inner frame).
Hook
Belt
Air passage
(Reverse side)
Outside frame
Fig.7-7
Outside frame
NOTE
Inside frame
Air inlet
The signal wire of the remote control receiver must be drawn
out through the canvas air passage.
Fig.7-11
●
Fix the outside frame and the canvas air passage with screws.
Screw must be fixed on from the bottom to the top.
NOTE
Connect the remote control receiver with the indoor unit signal
wires and fix it.
Canvas air passage
●
Install remote controller.
Screw
Ceiling
Fig.7-8
installation manual

Use frozen oil
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:
Fig.8-1
●
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.)
Bend the pipe with thumb
●
●
The number bends fewer than 15.
Do not let air, dust, or other impurities fall in the pipe system
during the time of installation.
Fig.8-2
Fig.8-3
●
●
The connecting pipe should not be installed until the indoor and
outdoor units have been fixed already.
Make the ends
straight
Keep the connecting pipe dry, and do not let moisture in
during installation.
Locate The Pipe
The Procedure of Connecting Pipes
Measure the necessary length of the connecting pipe, and make
it by the following way.
●
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.
●
Connect the indoor unit at first, then the outdoor unit.
Bend the tubing in proper way. Don,t harm them.
●
●
Bind the connecting pipe and the cables together tightly with
binding tapes. Do not let air in, which will cause water leakage
by condensation.
①
②
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.8-1)
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.
③
Be sure to use two wrenches simultaneously when you connect
or disconnect the pipes.
Connect 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.
Then, open the stem of stop valves of the outdoor unit to make
the refrigerant 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.
●
Expel the air (refer to the “Expel The Air”) after connecting the
refrigerant 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℃
Bending position is preferably in the bendable pipe. The larger
the better it is .
●
●
Do not bend the pipe more than three times.
Flaring
Bend the connecting pipe of small wall thickness.
●
Cut a pipe with a pipe cutter.
Insert a flare nut into a pipe and flare the pipe.
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.
90
lean crude burr
Be sure to use the same insulating materials when you buy the
brass pipe. (More than 9mm thick)
Fig.9-1
installation manual

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
Check all the joints with the leak detector or soap water. (See
Fig.9-6 as a reference illustration)
D
C
Check-point of indoor unit
Please record the quantity added and store it carefully for
future maintenance.
Expel the air with a vacuum pump (Refer to Fig.9-4) (Please
refer to its manual for the way of using manifold valve)
B
A
●
Loosen and remove the maintenance nuts of stop valves A
and B, and connect the charge hose of the manifold valve
with the maintenance terminator of stop valve A. (Be sure
that stop valves A and B are both closed)
Check-point of outdoor unit
●
●
Connect the joint of the charge hose with the vacuum pump.
Open the Lo-lever of the manifold valve completely.
A. Lo-stop valve B. Hi-stop valve
C,D. Joints of the connecting pipe to the indoor unit.
●
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.
Fig.9-2
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.
●
●
When the pumping has finished, close the Lo-lever of the
manifold valve completely and turn off the vacuum pump.
Incomplete insulation may cause water condensation.
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.
Fig.9-3
Table.9-1
Disassemble the charge hose from the repair-mouth of stop
valve A, and fasten the nut.
A(mm)
Outside diameter
Manifold valve
Max
8.7
Min
8.3
Multi-meter
Pressure meter
Φ6.4mm
Φ9.5mm
Φ12.7mm
Φ15.9mm
Φ19.1mm
12.4
12.0
-76 cmHg
Hi-lever
15.8
19.0
15.4
18.6
Lo-lever
Charge hose
Charge hose
23.3
22.9
Fig.9-5
Vacuum pump
Lo-lever
Fig.9-4
All the stop valves should be opened before test operation.
Each air conditioner has two stop valves of different sizes on
thesideoftheoutdoorunitwhichoperateasLo-stopvalue,respec-
tively. (Refer to Fig.9-6)
Table.9-2
Tubing size
Torque
Φ6.4mm
Φ9.5mm
Φ12.7mm
Φ15.9mm
Φ19.1mm
14.4~17.2N.m
32.7~39.9N.m
49.5~60.3N.m
Flare nut
61.8~75.4N.m
Stopper
Cap
92.7~118.6N.m
Fasten the nut
Valve body
●
●
Put the connecting tubing at the proper position, wrench the
nuts with hands then fasten it with a wrench. (Refer to
Fig.9-4
Fig.9-6
Valve stem
Too large torque will harm the bellmouthing and too small will
cause leakage. Please determine the torque according to
Table.9-2.
installation manual

Attaching wiring
Install indoor unit drain pipe
The outlet has PTI screw bread, For 71T1 to 160T1 indoor
unit,please use sealing materials and pipe sheath (fitting) when
connecting PVC pipes. For 200T1 to 280T1 indoor unit,please
use Water connecting pipe and Adhesive tape for seal when connect-
ing drain pipes.
●
●
The air conditioner should use separate power supply with rated
voltage.
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.
CAUTION
The drain pipe of indoor unit must be heat insulated, or it will
condense dew, as well as the connections of the indoor unit.
●
●
The wiring work should be done by qualified persons according
to circuit drawing.
Hard PVC binder must be used for pipe connection, and make
sure there is no leakage.
A leakage protector should be installed according to the National
Standard concerning electrical appliance.
With the connection part to the indoor unit, please be noted not
to impose pressure on the side of indoor unit pipes.
●
●
Be sure to locate the power wiring and the signal wring well to
avoid cross-disturbance and their contact with connecting pipe
or stop value body.
When the declivity of the drain pipe downwards is over 1/100,
there should not be any win ding.
The wiring attached to this air conditioner is 10m long. Be sure
to prolong it with wiring of the same type and proper length
if necessary. Generally, do not twist two wiring together unless
the joint is soldered well and covered with insulator tape.
The total length of the drain pipe when pulled out traversely
shall not exceed 20m, when the pipe is over long, a prop stand
must be installed to prevent winding.
●
Do not turn on the power until you have checked carefully after
wiring.
The height difference between drain pipe end to ground or drain
channel should be more than 50mm, and the drain pipe cannot
put in water. If the drain water was discharged to ditch directly,
the drain pipe must be upward bent into a U type water seal to
avoid odor into the interior through the drain pipe.
The Specification of Power
Table.11-1
Capacity(KW)
40~56kW(50Hz)
40~45kW(60Hz)
If the negative pressure of drain pan outlet is high, there must
be a water elbow in drain pipe to avoid poor drain or blow water
for negative pressure. Please install the water elbow as figure
4.4 shown, each unit should install a water elbow. There should
be a plug in water elbow for convenient cleaning.
Phase
1-Phase
Power
Frequency and volt
220-240V～ 50Hz 220-240V～ 60Hz
Circuit breaker/fuse (A)
20/15
Refer to the figures on the right for the installation of the pipes.
Indoor unit power wiring (mm2)
2.5(<20 m)-4.0(<50 m)
2.5
Indoor/outdoor Ground wiring
connecting
1.5M~2M
wiring(mm2)
Weak electric
signal
0.75(<1200 m)
CAUTION
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.
Fig.10-1
Bend
S shap
Communication Wiring Chart
Communication wiring will be different according to the horse-
power of air-condictioners. The wiring of 450T1 to 560T1 indoor
unit, please refer to Fig.11-1.
Put as deep as possible
(about 10mm)
OUTDOOR
UNIT
Downward declivity
lower than 1/100
VP30
（P、Q、E）
Fig.10-2
INDOOR
UNIT
INDOOR
UNIT
INDOOR
UNIT
INDOOR
UNIT
XT3
XT6（P、Q、E） XT3 XT6（P、Q、E） XT3
XT6
XT3
XT6
......
Indoor unit
（X、Y、E）
（X、Y、E）
H
H
H: 2''(50mm) or more.
CENTRAL
CONTROL
MONITOR(CCM)
（F、F、E）
1 2
COMPUTER
Fig.10-3
Caution: While connecting the drain pipe, please use the drain pipe con-
nect to the secondary water holder simultaneously, for avoiding
there are little condensate water deposit in the unit when the machine
is running under the high humidity working condition.
Fig.11-1
installation manual

Table.12-1
ENC1
CAUTION
Toggle switch
Code
For set horsepower
The reserved function is indicated in broken line table,users can
select it when necessary.
Capacity(Horsepower)
2200W(0.8HP)
2800W(1.0HP)
3600W(1.2HP)
4500W(1.5HP)
5600W(2.0HP)
7100W(2.5HP)
8000W(3.0HP)
9000W(3.2HP)
10000W(4.0HP)
11200W(4.0HP)
12500W(5.0HP)
14000W(5.0HP)
16000W(6.0HP)
0
1
2
3
4
5
6
Terminal board diagram
Please refer to the indoor unit wiring diagram for the detailed
wiring. In accord with the communication wiring, terminal board
wiring is different according to the horsepower of air-condictioners.
The wiring of 450T1 to 560T1 indoor unit, please refer to Fig.11-2.
Note: The horsepower
has been set before
leaving the factory,
anyone can’t
modify it except the
maintenance person.
NOTE
7
Th e ai r-co nd it ion ers c an conn ec t wi th Cen tra l Co ntr ol
Monitor (CCM). Before operation, please wiring correctly
an d se t syst em a dd res s an d ne twork a dd res s of indo or
units.
8
9
A
INDOOR UNIT
YELLOW/GREEN
XT3
XT6
L
N
Network Address Setting
TO INDOOR POWER SUPPLY
220-240V~ 50Hz
When V4+ outdoor unit set the code to be found address
automatically, the new V4+ indoor unit do not need to set the
indoor unit address, at this time the V4+ outdoor unit will
distribute different addresses for indoor units automatically.
TO CCM
TO INDOOR&OUTDOOR
COMM.BUS
TO INDOOR&OUTDOOR
COMM.BUS
COMM.BUS
TO NEXT INDOOR UNIT
Please use 3-core shielding wire, and ground the shielding layer.
Fig.11-2
When V4+ outdoor unit set the code to be found address
non-automatically, all the indoor units must set the system
addresses by remote controller first (For the setting system
address of indoor unit which has two or more main boards, it
has to separate use the display board connected with ten-
core connecting wire to set the address for each mainboard).
Horsepower set
The setting of network address is through the
communication of indoor and outdoor units, its address is the
same as the indoor unit system address, and not need to set
separate.
Base on different purposes to set the switch codes on the main
boards of indoor unit, Once finish the setting, please cut off the
main power, and then switch on the power again. Otherwise,
setting functions could not work.
When all indoor units are V4+ series indoor unit, the central
controlling of indoor unit can be finished in the outdoor unit,
and not need to make central control in the indoor unit, the
detail please refers to the V4+ outdoor unit instruction ma-
nual;.
Horsepower
code
POWER_S
For the previous indoor unit ’s central control function, can
use (X, Y, E) terminal to connect and form the central control
group, at this time there is not need to set the network
address, and also can use outside setting network module,
mainboard (CN20) to form network.
ENC1
Fig.12-1
ENC1 is used for setting the refrigeration capacity(refer to
Table.12-1 for different indoor unit) of the indoor unit.
installation manual

Mainboard codes indication label
SW 5 Difinition
SW5
SW 1 Difinition
00 means temp. compensation
value is 6℃ under heat mode
ON
ON
ON
ON
SW1
1 means factory test mode
0 means auto addressing mode
(default setting)
ON
1 2
SW5
1234
SW1
01 means temp. compensation
value is 2℃ under heat mode
1 means DC fan is chosen
0 means AC fan is chosen
1 2
SW5
ON
ON
1234
SW1
10 means temp. compensation
value is 4℃ under heat mode
00 means DC fanstatic pressure
is 0 (reserved)
1 2
SW5
1234
SW1
11 means temp. compensation
value is 8℃ under heat mode
01 means DC fanstatic pressure
is 1 (reserved)
ON
1 2
1234
SW1
SW6 Difinition
10 means DC fanstatic pressure
is 2 (reserved)
ON
ON
SW6
ON
1 means old display panel
1234
SW1
0 means new display panel
1 2 3
11 means DC fanstatic pressure
SW6 1 means auto air blow under
is 3 (reserved)
1234
ON
ON
auto mode
0 means auto air blow under
1 2 3
SW6
non-auto mode
J1, J2 Difinition
J1
 reserved
1 2 3
without jumper "J1" fo r
auto restart function
SW7 Difinition
SW7
0/1
Difinition
J1
J2
with jumper "J1" for
non-auto restart function
 standard
ON
ON
means 0
configuration
1 2
SW7
last unit of
the network
reserve d
ON
ON
means 1
1 2
SW 2 Difinition
CAUTION
SW2
ON
 00 means shutting down the unit
to “stop cold air” at 15℃
Please adjust the code ENC1 to the suitable position (both
system A and B should be adjusted for 450T1 and 560T1
indoor unit).
1234
SW2
ON
 01 means shutting down the unit
to “stop cold air” at 20℃
●
●
For 450T1 unit, two mainboards in the electric control
should set the code ENC1 to 8;
1234
SW2
 10 means shutting down the unit
to “stop cold air” at 24℃
ON
For 560T1 unit, two mainboards in the electric control
should set the code to 9.
1234
SW2
ON
 11 means shutting down the unit
to “stop cold air” at 26℃
For the same indoor unit, every mainboard must be differ-
ent indoor unit addresses and network addresses.
1234
SW2
ON
 00 means the time of stopping
TERMAL fan is 4 mintue
When using central controller to control the indoor unit,
please pay attention to the address setting, as the 450T1
and 560T1 units have two or more mainboards. We
suggest setting the neighbor address for the mainboards
in the same indoor unit. When using a central controller for
controlling, mainboards in the same unit must be opened
and closed at the same time, for avoiding the unexpected
incident.
1234
SW2
ON
 01 means the time of stopping
TERMAL fan is 8 mintue
1234
SW2
ON
10 means the time of stopping
TERMAL fan is 12 mintue
1234
SW2
ON
11 means the time of stopping
TERMAL fan is 16 mintue
1234
installation manual

Table.13-1
NO. Type
For 40K W~56 KW mo dels .
Contents
LED Lamp flash
Remarks
Electric throttle
part
The evaporator
sensor check
Malfun- point is abnoma
or room temp.
sensor is
abnormal.
Low-pre ssure pipe
Hi-p ressure pip e
Run lamp
flashes
at 2.5Hz.
After the malfunctions
disappear, it restores
automatically.
1
ction
Φ22
Φ22
Gas branch
pipe
Indoor/outdoor unit The timer lamp After the malfunctions
Malfun-
ction
2
3
communication
is abnormal.
flashes at
2.5Hz.
disappear, it restores
automatically.
Φ9.5
Φ9.5
Liquid branch
pipe
Condenser sensor
Malfun- check point is
abnormal or
All the indoor
alarm lamps
After the malfunctions
disappear, it restores
flash at 0.5Hz. automatically.
Fig.15-1
ction
outdoor temp.
The pipin g diam eter plea se refe r to the manual of the o utdoor unit yo u cho ose.
sensor is abnomal
If the malfunctions
can’t be solved in
three min. all the
indoor alarm lamps
flash at 0.5Hz.Turn
off the power to restore.
Branch Part should be installed in horizontal mode or
vertical mode.
Water level switch
Malfun-
is abnormal
ction
Alarm lamp
flashes
at 2.5Hz.
4
5
Install vertically
Main pipe is vertical
to horizontal plane
When the indoor unit
turns to heating mode
or is turned off, the
Install horizontally
Defrost lamp
flashes at
2.5Hz.
Alarm
Mode conflict
alarm will disappear.
Defrost lamp
EPPROM error flashes at
0.5Hz.
After the malfunctions
disappear, it restores
automatically.
Malfun-
ction
6
Fig.15-2
The indoor unit
without an add-
Alarm ress when it is
first time electri- together.
fied
Timer lamp
and run lamp disappear, it restores
flash at 2.5Hz automatically.
After the malfunctions
7
Fig.15-3
Infrared signal receiver
Temporary button
Operation lamp
Timer indicator
Alarm indicator
PRE-DEF indicator(cooling and heating type)
or fan only indicator(cooling only type)
Fig.13-1
Please refer to the Fig.4-11 figures to install.
installation manual

CAUTION
The test operation must be carried out after the entire installation
has been completed.
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.
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.
For the fresh air machine, a system can be configured for single
machine, and not with a fresh air inside the machine to mix and
match, otherwise it will cause serious attenuation ability.
● The length of the tubing and the added stow capacity of the refriger-
ant have been recorded.
Each model is configured as follows:
● The power voltage fits the rated voltage of the air conditioner.
●
●
A 450T1 matching a16 HP multiple outer machine;
A 560T1 matching a20 hp multiple outer machine;
● There is no obstacle at the outlet and inlet of the outdoor and
indoor and indoor units
● The gas-side and liqid-side stop vaule are both opened.
● The air conditioner is pre-heated by turning on the power.
According to the user’s requirement, install the remote controller
frame where the remote controller’s signal can reach the indoor
unit smoothly.
Test operation
Set the air conditioner under the mode of “COOLING”with the
remote controller, and check the following points per the “Owner’s
Manual” If there is any malfunction, please resolve it through
chapter “Troubles And Causes ”in the “Owner’sManual”.
● 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.
W hether the air co nditio ner heats w ell 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 water by the
air conditioner have influenced your neighborhood.
Whether any of the refrigerant is leaked.
installation manual

MDV12I-010HW
202000171956