Unique Klasse DSA-0910LG-M User manual

SERVICE MANUAL
MULTI-ONE SYSTEM
Air Conditioner
Model: DPA-246LR + DSA-0910LR-M
DPA-246LG + DSA-0910LG-M
✔Caution
: In this Manual, some parts can be changed for improving,
their performance without notice in the parts list. So, if you
need the latest parts information, please refer to PPL(Parts
Price List) in Service Information Center.

FLOOR STANDING TYPE
Air Conditioner
Model: DPA-246LR / DPA-246LG

CONTENTS
1. SPECIFICATIONS.....................................................................................................2
2. INSTALLATION GUIDE.............................................................................................3
3. OUTLINE..................................................................................................................13
4. WIRING DIAGRAM.................................................................................................17
5. EXPLODED DIAGRAM..........................................................................................20
6. DIAGRAM OF REFRIGERANT CYCLE................................................................25
7. THE STRUCTURE OF THE CONTROL PANEL..................................................26
8. PCB DRIVING DESCRIPTION..............................................................................29
9. TROUBLESHOOTING............................................................................................32
10. DISASSEMBLY INSTRUCTION..........................................................................37
Contents

2
1. SPECIFICATIONS
MODEL FLOOR STANDING SPLIT
ITEM DPA-246LR/LG DSA-0910LRM/LGM
FUNCTION COOLING
POWER AC 220~ / 60Hz
CAPACITY W 7,200 2,300
Btu/h 24,500 7,848
ELECTRICAL Running current A 10.5 3.5
DATA Power input W 2300 660
FAN Type Limited fan Cross flow fan
MOTOR Capacitor 2µF / 400~450VAC 1.8µF / 400~450VAC
Model IC-9630DWKF6A RP13B-PG
REFRIGERANT Control CAPILLARY
(R-22) Charge g 1650
CONNECTION Type Flare
OD(Liquid/Gas) mm(in) 6.35(1/4") / 15.88(5/8") 6.35(1/4") / 9.52(3/8")
DIMENSIONS (WXHXD) mm 560 * 1,800 * 302 850 * 280 * 170
NET WEIGHT kg 49 11.5
◆Multi-One [ DPA-246L(R/G) + DSA-0910L(R/G)-M ]
Type ROTARY
Compressor Model QK191KAF [A] QK134KBH [B]
Capacitor 30µF / 6µF, 450VAC 25µF, 450VAC
Fan type PROPELLER FAN
OUT DOOR Motor Capacitor 6µF / 400~450VAC
UNIT Model A2935GA010 (1050/ 900/ 600RPM)
Dimension mm 872 * 675 * 325
(WXHXD)
Net Weight kg 58

3
2. INSTALLATION GUIDE
··Flat and strong place in the room
·No obstacles in front of air in/out grille
·Easy place to connect drain hose to outside of room
·Easy place to connect copper tube with outdoor unit
·Secure enough distance from neighboring objects as
shown below.
·Secure enough distance from neighboring objects as
shown below.
·A place no reach of direct ray of sun (if necessary, shield the
light)
·No obstacles in front of air in/out grille
·A place having a drain out-let
·Easy place to connect copper tube with indoor unit
·Secure enough distance from neighboring objects as shown
below.
CAUTION : Do not hang the outdoor unit on the wall of building, in case of falling, it may cause a serious trouble and damage.
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·
·
·
·
·
·
·
·
·
·
·
·
·
·
CAUTION
·Use designated diameter and thickness of tube.
·Connect all tube as short as possible and fix firmly.
·Less than 3M of the difference of height between indoor and outdoor unit is desirable.
·Fill up more refrigerant if the connection tube is longer than 5M (30g/M).
(The refrigerant volume filled from the factory is suitable for 5M connection)
·Be careful not to let in any dust or motes into the tube when the tube passes the wall.
·When insulating the connection, use foam rubber or equivalent.
Secure enough space from the neighboring objects as shown below.
This is required to operate the unit efficiently.
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·
·
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·
·
·
30cm
70cm
30cm
70cm
(Outdoor unit)
5cm
(Indoor unit)
100cm
5cm
wall
indoor unit
outdoor unit
·
·
·
·
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·
INSTALLATION PLACE
1
SPACE TO INSTALL
2

4
Detailed Diagram of Installation
3
■■MMOODDEELL :: DDPPAA--224466LLRR//LLGG
1. Unfasten 3 screws in cover
evaporator front.
3. To prevent water drops, cover connection part between pipe suction and connection piping line with insulating material provided
with indoor unit.
4. Wind finishing tape around liquid pipe, gas pipe and electric wiring.
2. Open cover evaporator front and disconnect gas pipe and liquid pipe from
connection piping line.
Electrical Wire
Liquid Pipe
Vinyl Tape
Heat Insulator
Gas Pipe

5
5. Connect hook of power cable and insert is securely into the fixing part.
6. Check if pan drain is securely positioned at the end of drain hose. If
loose, firmly secure it with cable tie.
* In case there is interference with piping line when cover evaporator front is closed, move piping line close to evaporator, close cover
evaporator front and fasten screws.
* Well done. Installation has been completed.
※※NNaannoo ssiillvveerr aannttiiffuunnggaall ffiilltteerr cclleeaanniinngg
1.Pull forward the frontpanel 2. Remove the nanosilver
antifungalfilters 3. Clean off dustby vacuum cleaneror soft brush 4.Insertthe filter and then closethe front panel
7. Fasten 3 screws in cover evaporator front.

6
◇ Wiring and part shapes may differ per product model. Therefore, make sure to refer to wiring diagram
attached to each model for installation.
(Refer to wiring diagram attached at the end of the manual.)
1. Connect piping lines by distinguishing between piping lines of standing type A/C and split type A/C.
(If connection piping line is long, additionally fill up refrigerant by referring to pressure table. However, make sure that
difference in the length of connection piping lines of standing type A/C and split type A/C is within 5m.)
2. Connect the power line of standing type A/C (wiring No. 4 and 5) first before administering air-purge process. After
completion of air purging, additionally connect signal line (No. 6) and wiring of split type A/C (No. 1 and 2). Caution is
required because there is danger of electric shock during this process.
CCAAUUTTIIOONN
☞Be sure to use designated wires and make it as short as possible
☞Use an exclusive power supply for the air conditioner
☞Use an electricity leakage interrupter having suitable capacity.
☞Grounding resistance should be under 100 ohms and the grounding wire should be connected firmly to the terminal of
out door unit.
☞When connecting wires of indoor and outdoor unit, the numbers of terminal block and terminals of connecting wires
should match exactly as shown below.
☞Terminals of connecting wires should be fixed firmly using wire fixing tool to the same direction of terminal board.
3. For Multi-one model, power is supplied to outdoor unit through power line of the indoor unit of standing type A/C.
Therefore, even for cooling operation of split type A/C only, power plug for the indoor unit of standing type A/C must
be inserted into power outlet to enable cooling operation.
☞Make sure to deliver product to customer after completing installation.
MMaaiinn PPoowweerrTTeerrmmiinnaall BBlloocckk((OODDUU))
SSpplliitt SSttaannddiinngg
FFlloooorr SSttaannddiinngg AA//CC
SSpplliitt ttyyppee AA//CCBBrrBBrrBBkk
BBllBBll
1122445566
FFlloooorr SSttaannddiinngg
AA//CC ppoowweerr lliinnee
SSiiggnnaall lliinnee
Caution in Installation of Multione model
4

7
Air Purging Method
5
◇ The connected piping between indoor and outdoor units contains air inside. Air-purge is the process to remove this
air.
Existence of non-condensable gas, such as oxygen or nitrogen gas, inside piping line causes increase of discharge
pressure, heating of compressor, degradation of the performance of air conditioner and refrigerant noise, etc.
Therefore, air-purge is an essentially required process.
◇ Air purging by refrigerant of outdoor unit (in case length of piping is of 10m or less)
▶Connect piping lines of indoor and outdoor units. (Service valves of gas and liquid are both closed.)
▶Loosely fasten nuts (④) for connection of gas service valve (so that the nuts can be unfastened by hand).
▶Remove nut caps (⑧,⑨) and port cap (⑩) of service
valve.
▶Using a hexagonal wrench, rotate spindle (⑦) of liquid
service valve by 90°in anticlockwise direction. Hold the
spindle in position for 8 ~ 10 seconds. Rotate it again by
90°in clockwise direction to close. Then, completely
fasten nuts (④) for connection of gas service valve.
▶Press side of the service port (⑥) of gas pipe service
valve 2 or 3 times (for 3 seconds per time) to completely
remove air from inside the valve.
▶Completely open gas and liquid service valve spindles
(⑤, ⑦) by using a hexagonal wrench.
▶Close all of nut caps (⑤, ⑥) and port caps (⑦, ⑧) of
service valve. Otherwise, refrigerant leakage may occur.
◇ Air purging by vacuum pump (in case length of piping is of 10m of more)
▶Connect piping lines of indoor and outdoor units. (Service valves of gas and liquid are both closed.)
▶Connect low pressure hose (③) of manifold gauge to service port (④) of gas service valve.
▶Open valve of the low pressure hose (①) of manifold gauge, connect vacuum pump as shown in the picture and start purging.
▶Run vacuum pump until gauge pressure reaches [-76cmHg] (for 10 ~ 20 minutes).
▶Close valve of the low pressure hose (①) or manifold
gauge, wait for 3 ~ 4 minutes and check if scale of
pressure gauge has changed. If scale of pressure gauge
has changed, check connection part to prevent refrigerant
leakage in advance.
▶Turn off vacuum pump and disconnect low pressure hose
(③) of manifold gauge from service valve.
▶Completely open gas and liquid service valves by using a
hexagonal wrench.
▶Close all of nut caps (⑤, ⑥) and port caps (⑦, ⑧) of
service valve. Otherwise, refrigerant leakage may occur.
Low High
Vaccumpump
ODU
IDU
Pressuregage
Open Close
Gas
Liquid
ODU
Gas
IDU
Liquid
85
6
10
4
9
3
1
2
7
1
3
54
7
6
8
2

8
◇ Multi-one model is assembled with solenoid valve inside the system. Therefore, for refrigerant purging, the closed
solenoid valve must be opened. Follow the instructions below.
▶Connect power line of the indoor unit of standing type A/C to terminal block of outdoor unit.
▶Connect power plug of the indoor unit of standing type A/C to cabinet panel box.
▶Solenoid valve opens with a clicking sound.
(Valve is opened for 1 hour only when supplying power for the first time. _ Supply power again after 1 hour.)
▶Administer air purging according to the attached [refrigerant purging method] or [purging by vacuum pump].
▶Continuously administer air purging in the same way when connecting frame-type piping.
▶After completion of air-purge, pull out power plug of the indoor unit of split type A/C. Then, connect signal line and split type A/C wiring to
the terminal block of outdoor unit.
▶Administer test operation.
▶When no abnormalities are detected, finish up piping process (finishing up wiring and insulation materials).
CCoorrrreecctt ccoonnnneeccttiioonn
ooff ppiippiinngg lliinneess ooff
iinnddoooorr aanndd oouuttddoooorr
uunniittss
RReeffrriiggeerraanntt lleeaakkaaggee ffrroomm iinnddoooorr uunniitt dduuee ttoo iinnffeerriioorr aaiirr--ppuurrggee
FFrreeqquueenntt ooccccuurrrreennccee ooff ccllaaiimm ffoorr nnooiissee
SSpplliitt ttyyppee
GGaass ppiippee
SSpplliitt ttyyppee
LLiiqquuiidd ppiippee
SSttaannddiinngg ttyyppee
GGaass ppiippee
SSttaannddiinngg ttyyppee
LLiiqquuiidd ppiippee
Air Purging Method
6

9
Check the hose and connection status of manifold gauge.
Then, check if there is a pin at the end of low pressure hose
(③). Valves of low and high pressure hoses (①,②) must be
closed.
Connect hose in the middle of manifold gauge (④) to
refrigerant container (⑤). Refrigerant container must be
prepared so that refrigerant can be charged in gaseous state.
While placing low pressure hose of manifold gauge (③) over
the service port of gas service valve (⑥), open the valve of
refrigerant container (⑤), slightly open low pressure valve of
manifold gauge (①) and remove air from inside the hose
(③). Immediately after removing air, connect ③and ⑥and
close the low pressure valve of manifold gauge (①).
Start cooling operation of air conditioner.
Open and close low pressure valve (①) by checking the
pressure of manifold gauge. Repeat pressure check and
additionally fill up refrigerant according to the pressure listed
Close low pressure valve of manifold gauge (①) and stop the
operation of air conditioner.
After closing the valve of refrigerant container, disconnect
manifold gauge and reassemble nut caps and port caps (to
prevent refrigerant leakage).
◎◎CCaauuttiioonn wwhheenn aaddddiittiioonnaallllyy ffiilllliinngg rreeffrriiggeerraanntt dduurriinngg
uussee
•Slight leakage of refrigerant occurs when pin of low
pressure hose is in contact with needle valve of
service valve. Refrigerant leakage will be stopped
through tightening up.
◎◎AAddmmiinniisstteerr rreeffrriiggeerraanntt ffiilllliinngg bbyy rreeppeeaatteeddllyy ccaarrrryyiinngg
oouutt iimmmmeeddiiaattee ooppeenniinngg aanndd cclloossiinngg ooff ppoowweerr
pprreessssuurree vvaallvvee ((①①)) ooff mmaanniiffoolldd ggaauuggee sseevveerraall
ttiimmeess ((ttoo pprreevveenntt lliiqquuiidd ccoommpprreessssiioonn))..
◎◎WWhheenn ccoommpplleetteellyy ddiisscchhaarrggiinngg rreeffrriiggeerraanntt,, iitt mmuusstt
bbee ddoonnee sslloowwllyy ssoo tthhaatt ttoo pprreevveenntt eexxcceessssiivvee
lleeaakkaaggee ooff rreeffrriiggeerraattoorr ooiill..
12
3
64
5
R-22
Additional Filling of Refrigerant
7

10
Changes of low pressure by the temperature differences indoor and outdoor
(Multi-One, Basic piping 5m)
[Package single operation]
20 25 30 35 40
21 4.0 4.2 4.6 4.4 4.4
23 4.3 4.4 4.8 4.6 4.6
25 4.5 4.6 5.1 4.8 4.8
27 4.6 4.7 5.2 4.9 5.0
29 4.8 4.9 5.3 5.2 5.3
532 4.9 5.0 5.4 5.3 5.4
DPA-246L
Bypass S/V
Additional
refrigerants
floor standing type - Add extra 30g/m
wall mounted type - No need for extra refrigerants under 15m
On Off
Low pressure
(kg/cm2, G)
Outdoor temperature(℃)
Indoor
Temperature (℃)
*The data are the result of tests at the relative humidity 50%
Split type
connecting pipe (B)
Standing type
connecting pipe (A)
◇ When refill the refrigerants, just add the exact quantity by using electronic scale.
(The refill quantity chart is attached on the outdoor fan set.)
◇ Long distance piping specification(Up to 15m piping guaranteed) At 35C outdoor and 27C indoor, the low
pressure of `Multi one model in single operation is 5.2(Kg/cm, G) Add the proper quantity of refrigerants
referring the pressure.
◇ The pipes of A and B shall be installed not to exceed 5m in the difference(A-B or B-A)

11
Test Operation and Description of Functions
8
11)) FFiinniisshhiinngg ooppeerraattiioonn
①Apply insulation materials after checking for no refrigerant leakage and successful drainage.
②Take caution not to have product wiring and power line get in contact with piping line without insulation materials or gas service
valve.
③Seal off the hole in wall surface with putty placed in the box of installation materials.
④Wind up finishing tape in upward direction.
22)) IInnssppeeccttiioonnss aafftteerr iinnssttaallllaattiioonn
①Check solidity of the place and of location of product installation.
②Check connection status of piping line and for gas leakage.
③Check connection status of wiring.
④Check insulation status of piping line.
⑤Check drainage status.
⑥Check connection status of flare nuts.
33)) CChheecckkppooiinnttss dduurriinngg tteesstt ooppeerraattiioonn
①Check for signal sound (beep~) when supplying power.
②Check the operation status of remote controller.
③Check if indoor operation indication lamp has been lit.
④Check if abnormal noises are generated from indoor and outdoor units.
⑤When starting cooling operation for the first time, check if compressor protection function is operated.
44)) DDeelliivveerryy ttoo ccoonnssuummeerr
①Explain about manual and instructions of using remote controller to consumer.
②Explain about how to turn power on/ off, methods of selecting operation mode, methods of wind velocity adjustment and
methods of cleaning filter, etc.

12
Pumpdown (refrigerant recovery)
9
SSttaarrtt ccoooolliinngg ooppeerraattiioonn..
((CChheecckk iiff ccoommpprreessssoorr ooff oouuttddoooorr uunniitt iiss
ooppeerraattiinngg..))
PPuummpp--ddoowwnn ((rreeffrriiggeerraanntt rreeccoovveerryy)) iiss tthhee pprroocceessss ttoo
ccoolllleecctt rreeffrriiggeerraanntt rreemmaaiinniinngg iinn iinnddoooorr uunniitt aanndd
ccoonnnneeccttiioonn ppiippiinngg lliinnee aanndd ssttoorree iitt iinn oouuttddoooorr uunniitt
ffoorr tthhee ppuurrppoossee ooff mmoovviinngg oorr rreeppaaiirriinngg aaiirr
ccoonnddiittiioonneerr..
Loosen nut caps of gas and liquid service valves (⑤, ⑥) and
service port cap of gas service valve (⑦).
Connect low pressure hose of manifold gauge (③) to service
port of gas service valve.
Low pressure hose valve of manifold gauge (①) must be
closed.
Completely close liquid service valve by rotating it in
clockwise direction with a hexagonal wrench.
When low pressure of manifold gauge drops to 0kgf/cm2,
completely close gas service valve by rotating it in clockwise
direction with a hexagonal wrench.
Immediately stop the operation of air conditioner. (Refrigerant
is not being circulated. Therefore breakdown of compressor
may occur if air conditioner is not stopped immediately.)
Disconnect manifold gauge and reassemble nut caps and
port caps (to prevent refrigerant leakage).
Low High
Pressure
gage
12
3
54
7
6
8
IDU ODU
Gas
Liquid

13
3. OUTLINE
1Top sideair out/ director for fan 7Main controls/Remote sensors
2Frontpanel (Door) 8Airin antifungal filter
3Bottomside airout / director for fan 9UV sterilization Lamp
4Airin(bottom) 0Remote controllerrack
5Airin(top) qAir innano filter
6Airin(back) wAir inantifungal filter
5
8
9
w
q
6
2
0
7
1
2
4
3
(1) DPA-246LR/LG INDOOR UNIT
11.. NNAAMMEE AANNDD FFUUNNCCTTIIOONN OOFF PPAARRTTSS

14
(2) DPA-246LR/LG INDOOR UNIT OUTLINE AND SECTION

15
(3) DPA-246LR/LG INDOOR UNIT MAIN CONTROL
Temperature Indicator
●
Room temperature/Desired temperature
indicator
Cooling course Indicator
Light to indicate the cooling course.
[Dual/Single/Optimal]
Fan speed indicator
Lights to indicate the fan speed.
(Auto/Low/Middle/High/Eco)
Operation mode indicator
Auto/Cooling/Fan/Dehumifier/UV/
Economy/Reservation/Sleep
Temperature setting buttons
Each time you push this button, the
temperature varies 1 C up and down
within the temperature range of 18 C~32 C.
Cooling course selection button
Press to cycle through the cooling course.
Fan speed setting button
Press to select the fan speed in five steps.
"(Auto, Low, Middle, Hige, Eco) "
UV sterilization button
Press to operates UV sterilization.
Turbo button
Press to select super power operation mode.
Mode selection button
Press to cycle through the modes.
[Auto/Cool/Fan/Dehumifier]
Remote signal sensor
On/Off button
Press this button once to start operation.
Press once again to stop it.
●
●
●
●
O
●
O
O
●
●
●
●
●

16
Signal transmitter
Display
Fan speed setting button
Press to select the fan speed in five steps.
"(Auto, Low, Middle, Hige, Eco)"
Mode selection button
Press to cycle through the modes.
[Auto/Cool/Fan/Dehumifier]
Air swing button
Press this button once to auto operation of
flap front. Press once again to stop of flap front.
Turbo button
Press to select super power operation mode
Focus/Wide button
Press to select air direction.
Economy mode button
Press to operates economy mode
Cooling course selection button
Press to cycle through the cooling course.
On/Off button
Press this button once to start operation.
Press once again to stop it.
Temperature setting buttons
Press to raise or lower the desire temperature.
Timer On/Off button, Enter/Cancel
timer button
Press to set the unit off or on time.
"(0.5,1.5,2,2.5,3,4,5,6,8,10,12,16,20,24)"
Press to enter a timer setting or to cancel
timer setting.
Sleep button
Press to set the unit for the sleep mode. (2~4hr)
UV sterilization button
Press to operates UV sterilization
Top
Top
Bottom
Bottom
Power. S
Power. S
Cooling. C
Cooling. C
UV Lamp
UV Lamp
Timer
Timer
Floor Standing
●
●
●
●
●
●
●
●
●
●
●
●
●
(4) DPA-246LR/LG REMOTE CONTROLLER

17
(1) INDOOR UNIT
4. WIRING DIAGRAM

18
(2) OUTDOOR UNIT