York Yuhc 18 60 User Manual

Installation & Owner’s Manual  
MODELS  
YUHC 18-60  
YUKC 07-18  
MINISPLIT  
AIR BLOWER  
EN 035M00065-000  
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REQUIRED TOOLS  
EXTENDED PARTS  
1. Screw driver  
2. Hexagonal wrench  
3. Torque wrench  
4. Spanner  
9. Manifold gauge  
10. Gas leak detector  
11. Vacuum pump  
12. Pipe clamp  
1. Refrigerant Pipe : See Technical Specification  
2. Pipe insulation material (Polyethylene foam 9 mm thick)  
3. Vinyl tape  
4. Putty  
5. Reamer  
13. Pipe cutter  
6. Hole core drill  
7. Tape measure  
8. Thermometer  
14. Flare tool set  
15. Electrical circuit tester  
SAFETY PRECAUTIONS  
• Please read this installation manual carefully before starting installation of the unit.  
• This air conditioning system contains refrigerant under pressure, rotating parts and electrical connection which  
may be dangerous and can cause injury. Installation and maintenance of this air conditioning system should only  
be carried out by trained and qualified personnel.  
• After unpacking, please check the unit carefully for possible damage.  
• Before undertaking any work on the unit, make sure that the power supply has been disconnected.  
WARNING & CAUTIONS  
CAUTION  
Danger  
Do not attempt to install this unit by yourself. This unit requires installation by  
qualified persons.  
DANGER  
Do not attempt to service the unit yourself. This unit has no user serviceable  
components. Opening or removing the cover will expose you to dangerous  
voltage. Turning off the power supply will not prevent potential electric shock.  
DANGER  
Never put hands or objects into the Air Outlet of indoor or outdoor units. These  
units are installed with a fan running at high speed. To touch the moving fan will  
cause serious injury.  
No  
DANGER  
To avoid the risk of serious electrical shock, never sprinkle or spill water or liquids on unit.  
WARNING  
Ventilate the room regularly while the air conditioner is in use, especially if there  
is also a gas appliance in use in this room. Failure to follow these directions may  
result in a loss of oxygen in the room.  
WARNING  
To prevent electric shock, turn off the power or disconnect the power supply  
plug before beginning any cleaning or other routine maintenance. Follow the  
directions for cleaning in this manual.  
WARNING  
Do not use liquid cleaners or aerosol cleaners, use a soft and dry cloth for  
cleaning the unit. To avoid electric shock, never attempt to clean the unit by  
sprinkling water.  
WARNING  
Do not use caustic household drain cleaners in the unit. Drain cleaners can  
quickly destroy the unit components (drain pan and heat exchanger coil, etc.)  
Thinner  
WARNING  
For proper performance, operate the unit in temperature and humidity ranges  
indicated in this manual. If the unit is operated beyond these conditions, it may  
cause abnormal functions of the unit or dew dripping from the unit.  
ENGLISH  
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PART NAMES  
INDOOR UNIT  
I
J
A
K
L
N
M
E
Display Panel  
B
F
D
H
G
OUTDOOR UNIT  
E
C
INDOOR & OUTDOOR UNIT  
DISPLAY PANEL  
A. Indoor unit  
B. Outdoor unit  
C. Remote controller  
D. Air-in  
I. Infrared signal receiver  
J. Emergency button  
K. Running indicator  
L. Timer indicator  
E. Air-out  
F. Air inlet  
G. Connecting pipe  
H. Drain hose  
M. Frost indicator (cooling and heating type)  
or fan indicator (cooling only type)  
N. Pump indicator  
NOTE  
All the pictures in this manual are for explanation  
purpose only. They may be sightly different from the  
air conditioner you purchased. The actual shape shall  
prevail.  
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TECHNICAL SPECIFICATIONS  
Technical Specifications : Duct Type YUHC “R-410A” -50Hz  
YUKC  
YUJC  
Indoor  
Unit  
18  
18  
1
24  
30  
30  
3
36  
36  
3
48  
48  
60  
60  
Models  
Outdoor  
Unit  
24  
V/Ph/Hz  
220-240/1/50  
380/3/50  
Power Supply  
Ph  
W
A
1
3
3
Power Consumption  
Running Current  
Refrigerant Type  
Refrigerant Charge  
1,900/1,900  
8.8/8.8  
2,560/2,500  
12.2/11  
3,250/3,250  
5.5/5.5  
3,700/3,350  
6.5/5.8  
4,700/4,900  
8.2/8.6  
6,000/6,000  
9.8/9.8  
R-410A  
gr  
2,050  
38  
2,600  
38  
3,100  
44  
3,100  
44  
4,000  
46  
4,200  
47  
Indoor  
Noise level  
dB(A)  
Outdoor  
48  
55  
57  
57  
58  
58  
V/Ph/Hz  
Ph  
220-240/1/50  
Power Supply  
1
1
1
1
1
1
Air flow  
m3/h  
W
1,160  
117  
1,460  
170  
0.77  
300  
1,000  
800  
38  
2,070  
118  
2,070  
118  
2,400  
118  
2,800  
227  
1.03  
320  
1,350  
800  
70  
Input Power  
Running Current  
A
0.53  
300  
1,000  
800  
36  
0.54  
300  
1,350  
800  
48  
0.54  
300  
1,350  
800  
48  
0.54  
300  
1,350  
800  
50  
Height  
Width  
Depth  
mm  
mm  
mm  
kg  
Dimension  
Weight  
System Operation Control  
Wireless Control with LCD Display  
380/3/50  
V/Ph/Hz  
Ph  
220-240/1/50  
Power Supply  
1
1
1
1
3
1
3
1
3
1
3
1
Qty  
Compressor  
Compressor Type  
Rotary  
Scroll  
Height  
mm  
mm  
mm  
kg  
695  
845  
335  
55  
860  
895  
330  
79  
960  
990  
360  
101  
960  
990  
360  
101  
1,245  
940  
1,245  
940  
Dimension  
Width  
Depth  
360  
360  
Weight  
Type  
110  
110  
Flare + Nuts  
Suction  
Liquid  
inch  
inch  
1/2  
1/4  
5/8  
3/8  
3/4  
1/2  
3/4  
1/2  
3/4  
1/2  
3/4  
1/2  
Pipe Size  
ENGLISH  
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Technical Specification: Ducted Dc Inverter “YUHC” R-410A, 50Hz.  
Set  
Indoor  
Outdoor  
V-Ph-Hz  
Btu/h  
W
YUHC18DUBAAR-K  
YUHC24DUBAAR-K  
YUHC36DUBACR-K  
YUHC48DUBACR-K  
YUHC60DSBACR-K  
Model  
YUKC18DU-BAR-K  
YUKC24DU-BAR-K  
YUKC36DU-BCR-K  
YUKC48DU-BCR-K  
YUKC60DS-BCR-K  
YUJC18DU-BAR  
YUJC24DU-BAR  
YUJC36DU-BCR  
YUJC48DU-BCR  
YUJC60DS-BCR  
Power supply  
Cooling  
220~240-1-50  
220~240-1-50  
380V~3~50Hz  
380V~3~50Hz  
380V~3~50Hz  
Capacity  
Input  
18,000  
1,570  
7
24,000  
2,130  
10  
36,000  
3,260  
9
48,000  
60,000  
4,840  
11  
4,250  
Rated current  
Capacity  
Input  
A
11  
Btu/h  
W
21,000  
1,630  
7
28,000  
2,190  
10  
40,000  
3,120  
8
53,000  
62,000  
4,800  
11  
Heating  
4,140  
Rated current  
A
11  
Max. input consumption  
Max. current  
W
2,600  
10  
2,800  
11  
3,560  
10  
4,750  
5,950  
16  
A
13  
Starting current  
A
1
1
1
1
1
Type  
DC Inverter Rotary  
DC Inverter Scroll  
Input  
W
A
1,650  
8
1,650  
8
3,665  
8
3,665  
8
3,665  
8
Rated current (RLA)  
Locked rotor  
Amp (LRA)  
Compressor  
A
28  
28  
28  
28  
28  
Protector  
Thermal  
Capacitor  
µF  
ml  
50  
50  
50  
50  
50  
Refrigerant oil  
Type  
480  
480  
500  
500  
500  
AC Motor  
Input  
W
µF  
117  
170  
118  
324  
160  
Indoor fan motor  
Capacitor  
3
7
3
10  
10  
Speed (Hi/Me/Lo)  
Number of rows  
Fin spacing  
Fin type  
r/min  
900/800/690  
1,100/1,020/900  
820/695/620  
870/770/700  
870/770/700  
3
2
3
2
3
2
3
2
3
2
mm  
mm  
Hydrophilic aluminium  
Ø9.52  
Indoor coil  
Tube outside dia.  
Material Type  
Innergroove tube  
Coil length x  
height x width  
mm  
800×254×66  
800×254×66  
1,150×254×66  
1,150×254×66  
1,150×305×66  
Indoor air flow (Hi/Me/Lo)  
m3/h  
Pa  
1,020/870/700  
1,275/1,170/1,030  
2,070/1,950/1,860  
70  
2,400/2,300/2,200  
70  
2,800/2,700/2,600  
96  
Indoor external static pressure (Hi)  
Indoor noise level (Hi/Me/Lo)  
40  
40  
dB(A)  
50/-/-  
53/-/-  
49/47/44  
51/47/44  
52/48/46  
Dimension  
(WxHxD)  
mm  
mm  
1,095×805×290  
1,205×940×370  
1,095×805×290  
1,205×940×370  
1,350×298×800  
1,555×940×370  
1,350×320×800  
1,555×440×940  
1,350×320×800  
1,555×440×940  
Indoor unit  
Packing  
(WxHxD)  
Net/Gross weight  
Input  
kg  
W
38/45  
129  
3
38/45  
150  
3
48/57  
70/80  
150×2  
3.5×2  
800  
1
70/80  
150×2  
3.5×2  
800  
1
307  
Outdoor fan  
motor  
Capacitor  
µF  
10  
Speed  
r/min  
770  
2
800  
2
740  
Number of rows  
Fin spacing  
Fin type  
1
2
mm  
mm  
2
2
2
2
Hydrophilic aluminium  
Ø9.52  
Outdoor coil  
Tube outside dia.  
Tube Material  
Innergroove tube  
Coil length x  
height x width  
mm  
630×660×44  
620×813×44  
955×915×22  
715×610×22  
1150×305×66  
Outdoor air flow  
m3/h  
2,400  
56  
3,000  
55  
5,000  
57  
6,000  
58  
6,000  
58  
Outdoor noise level  
dB(A)  
Dimension  
(WxHxD)  
mm  
mm  
840×677×310  
965×770×395  
894×860×302  
990×960×340  
940×1,245×340  
1,058×1300×435  
940×1245×340  
Outdoor unit  
Packing  
(WxHxD)  
1,043×915×395  
1,120×1015×435  
1,058×1,300×435  
Net/Gross weight  
kg  
g
62.5/66.5  
1,650  
72/76.5  
2,200  
106/111  
2,600  
117/126  
3,550  
112/127  
4,200  
Refrigerant R-410A  
Throttle type  
EXV&Capillary  
Liquid side/  
Gas side  
Refrigerant piping  
mm  
6.35/12.7  
9.53/16  
9.53/16  
9.53/16  
9.53/16  
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ENGLISH  
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TECHNICAL SPECIFICATION: EVEREST MULTI INVERTER “YUKC-RRJC” 50Hz  
Indoor Unit Duct Type YUKC 07-18  
Model  
YUKC 07AA-AAR  
YUKC 09AA-AAR  
YUKC 12AA-AAR  
YUKC 18AA-AAR  
Power supply  
Ph-V-Hz  
BTU/h  
BTU/h  
w
1Ph, 220-240V~, 50Hz 1Ph, 220-240V~, 50Hz 1Ph, 220-240V~, 50Hz 1Ph, 220-240V~, 50Hz  
Cooling Capacity  
Heating Capacity  
Power input  
Input  
7,000  
9,000  
12,000  
18,000  
Capacity  
8,000  
11,000  
14,000  
21,000  
40  
40  
40  
65  
W
38  
1.0µF/450V  
735/650/560  
2
38  
1.0µF/450V  
735/650/560  
2
38  
1.0µF/450V  
735/650/560  
2
63  
2.5µF/450V  
930/830/660  
2
Indoor fan  
motor  
Capacitor  
µF  
Speed (Hi/Mi/Lo)  
Number of rows  
Fin spacing  
r/min  
mm  
mm  
1.5  
1.5  
1.5  
1.7  
Fin type  
Hydrophilic aluminium  
Tube outside dia.  
Tube Material  
Ø7  
Ø7  
Ø7  
Ø9.53  
Indoor coil  
Innergroove tube  
Coil length x height  
x width  
mm  
700x26x350  
700x26x350  
700x26x350  
800x254x44  
Number of circuits  
4
4
4
3
Indoor air flow (Hi/Mi/Lo)  
m3/h  
dB(A)  
mm  
480/410/360  
35/32/30  
480/410/360  
36/33/30  
580/480/400  
38/35/33  
660/550/480  
40/38/35  
Indoor noise level (Hi/Mi/Lo)  
Pipe size  
Liquid side/ Gas side  
Ø6.35/Ø9.53  
955×210×385  
1,114x277x469  
15/19  
Ø6.35/Ø9.53  
955×210×385  
1,114x277x469  
15/19  
Ø6.35/Ø12.7  
955×210×385  
1,114x277x469  
15/19  
Ø6.35/Ø12.7  
1,301X210X385  
1,114x277x469  
18/22  
Dimension (W*H*D)  
Packing (W*H*D)  
Net/Gross weight  
mm  
Indoor unit  
mm  
Kg  
ENGLISH  
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Outdoor Unit Multi Inverter RRJC 18-27  
Model  
RRJC 18AA-AAA  
Single Double  
1Ph, 220-240V~, 50Hz  
RRJC 27AA-AAA  
Indoor Units Combination  
Single  
Double  
Treble  
Power supply  
Ph-V-Hz  
1Ph, 220-240V~, 50Hz  
Btu/h  
W
7,000~12,000  
18,000  
5,275  
1,813  
11.5  
7,000~12,000  
2,000~3,500  
1,000~1,300  
4.8~6.5  
16,000~24,000  
27,000  
7,913  
2,806  
13.5  
Capacity  
2,050~3,517  
1,000~1,300  
4.8~6.5  
4,690~7,000  
Cooling  
Input  
W
2,570~2,850  
Rated current  
A
11.7~13.5  
Btu/h  
W
9,000~14,000  
2,638~4,103  
1,300~1,600  
6.3~7.8  
21,000  
6,155  
2,038  
11.0  
10,000~14,000  
2,900~4,100  
1,300~1,600  
6.3~7.8  
24,000~27,000  
30,000  
8,792  
2,739  
13.2  
Capacity  
7,000~7,900  
Heating  
Input  
W
2,100~2,750  
Rated current  
A
11.0~13.2  
Max. input  
W
3,200  
20  
3,200  
Max. current  
A
20  
Type  
Rotary inverter  
Rotary inverter  
Input  
W
A
1,690  
1,690  
Rated current (RLA)  
11.6  
11.6  
Compressor Locked rotor Amp (LRA)  
A
60  
60  
Thermal protector  
Capacitor  
Internal  
Internal  
µF  
ml  
85µF/250V  
85µF/250V  
Refrigerant oil  
750  
750  
Input  
W
148  
148  
Outdoor fan  
Capacitor  
motor  
µF  
3
3
Speed  
r/min  
775  
775  
Number of rows  
2
2
Fin spacing  
mm  
mm  
mm  
1.7  
Hydrophilic aluminium  
Ø9.53  
1.7  
Hydrophilic aluminium  
Ø9.53  
Fin type  
Outdoor coil Tube outside dia.  
Tube Material  
Innergroove tube  
776×660×22  
2
Innergroove tube  
776×660×22  
2
Coil length x height x width  
Number of circuits  
Outdoor air flow  
m3/h  
dB(A)  
mm  
mm  
kg  
2,500  
2,500  
Outdoor noise level  
60  
60  
Dimension (WxHxD)  
845X695X335  
965X772X405  
71/74  
845X695X335  
965X772X405  
72/76  
Outdoor  
unit  
Packing (WxHxD)  
Net/Gross weight  
Refrigerant Type R-410A  
Liquid side/ Gas side  
g
2,100  
2,250  
mm  
mm  
m
Ø6.35/Ø9.53  
2
3 X Ø6.35/Ø9.53  
2
Transfer Connector (9.5312.7)  
Refrigerant  
piping  
Max. refrigerant pipe length  
15 (each indoor unit)  
10 (each indoor unit)  
15 (each indoor unit)  
10 (each indoor unit)  
Max. difference in level  
m
Remark : The above design and specifications are subject to change without prior notice for product improvement.  
OPERATING TEMPERATURE  
Mode  
Cooling operation  
Heating operation  
Drying operation  
Temperature  
Room temperature  
Outdoor temperature  
17°C~32°C  
21°C~43°C  
0°C~30°C  
-7°C~24°C  
17°C~30°C  
11°C~43°C  
CAUTIONS  
1. If air conditioner is used outside of the above conditions, certain safety protection features may come into operation  
cause the unit to function abnormally.  
2. Room relative humidity less than 80%. If the air conditioner operates in excess of this figure, the surface of the  
air conditioner may attract condensation. Please set the vertical air flow louver to its maximum angle (Vertically to  
the floor), and set HIGH fan mode.  
3. Optimum performance will be achieved within these operating temperature.  
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ENGLISH  
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OUTDOOR UNIT DIMENSIONS  
YUJC 18  
YUJC 24  
845  
313  
895  
300  
301.5  
141.5  
560.1  
590  
163  
YUJC 30-36  
YUJC 48-60  
336.4  
990  
400  
940  
181.4  
624  
650  
RRJC 18-27  
790  
520  
ENGLISH  
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DC Inverter R-410A  
mm  
REMARK  
MODEL  
18  
A
B
C
D
E
H
840  
894  
990  
940  
560  
590  
624  
600  
335 360  
333 355  
366 396  
376 400  
310  
302  
340  
340  
677  
860  
960  
1,245  
24  
36  
48  
R-410A  
A
B
PREPARATION BEFORE INSTALLATION  
• Before doing any work, check the interior power supply cord and the main breaker capacity are sufficient and the  
installation area is sufficient and complies with the requirements.  
• Check that the power supply available agrees with name plate voltage.  
Electrical work, wiring and cables must be performed in compliance with national and local wiring codes and standard.  
• Do not use the extension cables. In the case extended cables are needed, use the terminal block.  
INSTALLATION  
Installation place  
The indoor unit must be installed such that there is no short circuit of the cool discharge. Comply to the installation  
clearance recommended. Do not put the indoor unit where there is direct sunlight on unit. Make sure the location is  
suitable for piping and drainage.  
INDOOR UNIT  
YUKC 07-12  
380  
220  
175  
Air Outlet  
55  
25  
715  
870  
Drain port  
Ø25  
Refrigerant pipe  
Gas Side Ø9.0  
Refrigerant pipe  
Liquid Side Ø9.53  
915  
870  
148  
Ø100  
Fresh  
air inlet  
>500mm  
>500mm  
10  
ENGLISH  
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YUKC 18-48  
The positioning of ceiling hole and indoor unit and hanging screw bolt:  
Air outlet  
Hanging Screw bolt  
N-Ø200  
70  
Main body : A  
4-M10 Site configuration  
Distance between bolts: B  
J=MxK  
H
60  
80  
C
Ceiling hole: D  
Panel: E  
Install the main body:  
300  
Main body: 800  
720  
630  
Connecting point of  
refrigerant pipe  
160  
440  
(Liquid side ØG)  
Connecting point of  
refrigerant pipe  
(Gas side ØF)  
Dust proof net  
(Additional purchase)  
Connecting point of drain pipe  
Canvas air passage  
(Additional purchase)  
450  
Ceiling hole 470  
Panel 500  
Panel  
(Additional purchase)  
Capacity (Btu/h)  
12000-18000  
24000  
A
B
C
D
E
F
G
H
I
J
K
M
3
N
4
12.7 6.35  
1082 1052 1115 1087 1408  
1350 1400 1380 1400 1430  
9.53  
12.7 252  
35  
16  
19  
30000-48000  
930  
310  
ENGLISH  
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YUKC 60  
The positioning of ceiling hole and indoor unit and hanging screw bolt:  
Air outlet  
Hanging Screw bolt  
N-Ø200  
70  
Main body : A  
4-M10 Site configuration  
Distance between bolts: B  
J=MxK  
H
60  
80  
C
Ceiling hole: D  
Panel: E  
Install the main body:  
300  
Main body: 800  
210  
Distance between bolts: 565  
720  
630  
Fixed screw  
Connecting point of cold  
medium pipe  
80  
(Air side ØF)  
Connecting point of cold  
medium pipe  
(liquid side ØG)  
Ø125 Plank (inside)  
300  
(For air delivery from outside)  
Dust proof net  
Connecting point  
of drain pipe  
(Additional purchase)  
Canvas air passage  
450  
Entrances and exits  
for communication  
lines of indoor and outdoor units  
Ceiling hole 470  
Panel 500  
(Additional purchase)  
Panel  
(Additional purchase)  
Capacity (Btu/h)  
60000  
A
B
C
D
E
F
G
H
I
J
K
M
3
N
4
1350 1400 1380 1400 1430  
19  
12.7 252  
35  
930  
310  
When using a back-air installation, please refer to the following:  
N-250x393.8  
B
A
A
Back panel layout  
Back panel layout  
YUKC 18-48  
YUKC 60  
12  
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OUTDOOR UNITS  
CAUTIONS  
• Keep this unit away from direct radiation of the sun or other heaters.  
• If unavoidable, please cover it with a shelter.  
• In places near coast or with a high attitude where the wind is violent, please install the outdoor unit against the wall  
to ensure normal performance.  
Use a baffle when necessary.  
• In the case of extremely strong wind, please prevent the air from flowing backwards into the outdoor unit.  
(Refer to chart 1)  
• Locate the outdoor unit as close to the indoor unit as possible.  
• The minimum distance between the outdoor unit and obstacles described in the installation chart does not mean  
that the same is applicable to the situation of an airtight. Leave open two of three directions A, B, C.  
Chart 1  
NECESSARY ROOM FOR INSTALLATION AND MAINTENANCE  
(Refer to chart 2, chart 3)  
Remove the obstacles nearby to prevent the performance from being impeded by too little of air circulation.  
The minimum distance between the outdoor unit and obstacles described in the installation chart does not mean that  
the same is applicable to the situation of an airtight room. Leave open two of the three directions (A, B, C).  
(Wall or obstacle)  
Air inlet  
>30 cm.  
Fix with bolt  
Maintain channel  
Air inlet  
>60 cm.  
Air outlet  
Deep foundation  
Necessary width  
Chart 2  
Chart 3  
ENGLISH  
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MOVING AND INSTALLING  
• Since the gravity center of this unit is not at its physical center, so please be careful when lifting it with a sling.  
• Never hold the air-in of the outdoor unit to prevent it from deforming.  
Do not touch the fan with hands or other objects.  
• Do not lean it more than 45°, and do not lay it sidelong.  
• Please fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong  
wind.  
• Make concrete foundation of the size of 590 x 328. (Refer to chart 3)  
COLD AREA RECOMMENDATION  
• Outdoor heat pump unit : install the unit at least 10 cm above ground level to facilitate drainage of defrost water and  
prevent accumulation of ice. In effect, defrost water can cause accumulation of ice under the unit during subfreezing  
outdoor temperatures.  
• In areas with heavy snowfallit is best to install the unit on wall supports.  
In some regions, it is necessary to heat the bottom of the condensate drainage pan and the condensate drainage piping  
to avoid ice formation, and resulting ice build-up in the fan compartment (heater strip must be at least 25 W/m).  
OK  
CONDENSATE DRAINAGE  
Condensate drainage is provided on the unit. The con- Where the condensate lines from several units are joined  
nection is located at the rear.  
together, each individual outlet must be fitted with an  
elbow trap. After routing and connecting condensate  
lines, pour water into the collecting pan and check that it  
drains correctly. An auxiliary condensate pump could be  
installed in cases where drain lines cannot be routed the  
correct gradient.  
To ensure correct condensate drainage, the drain line  
must be installed with a gradient of at least 2% (2 cm per  
meter) and without any upward slopes. An elbow trap at  
least 50 mm in height must also be provided.  
If possible, install a U bend fitted with an inspection cap.  
Condensate drain connection  
14  
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REFRIGERANT PIPING CONNECTIONS  
Fixing and Piping  
Low pressure  
• Piping must be performed by qualified personnel  
High pressure  
Manifold  
according to good refrigeration system practices.  
• Piping materials and insulation materials must be of  
refrigerant quality.  
• Select the pipe diameters according to the size of  
unit and cut the pipe to design length by using pipe  
cutter.  
• Install the flare nuts and flare the end of the pipes.  
• Check that no foreign bodies are inside the piping.  
• Align the central of the connection pipes and tighten  
the flare nut.  
Gas valve  
Liquid valve  
Pressure tap  
• Fix piping with pipe clamps and check that any pipe  
vibrations cannot be transmitted to the building  
structure.  
Outdoor unit  
Indoor unit  
Gas line  
NOTES  
Liquid line  
• Connect the pipe correctly.  
• Do not apply the excessive torque.  
• Use an appropriate bending tool to form curves and  
avoid over-tightening the refrigerant tubes.  
• To prevent heat loss, the two lines must be insulated  
R-410A  
separately.  
* Note: The expansion device is located in the outdoor unit.  
Maximum Piping Length  
Unit size  
(m)  
18  
24  
30  
36  
48  
60  
30  
30  
30  
30  
30  
30  
The suction line must have a 2% gradient up to the  
compressor on horizontal sections.  
Where piping lengths are unusually long and include a  
large number of oil traps, it may be necessary to adjust  
to compressor charge.  
L
D
Refrigerant charge to be added per extra  
meter of piping length when more than 5  
meters.  
Models  
Unit size  
18  
24  
30  
36  
48  
60  
(g/m)  
30  
65  
90  
90  
90  
90  
L
Prefabricated refrigerant piping is available as an acces-  
sory. If this is not used, piping and insulating materials  
employed must be compatible with this type of installa-  
tion.  
H
The pre-charged outdoor unit does not require charging  
if piping length is 5 m or less. However, the interconnect-  
ing piping and the indoor unit must be pumped down  
before releasing R-410A refrigerant into them from the  
outdoor unit.  
1. Remove the cap from the service valve.  
2. Connect the line to a vacuum pump and pump  
down to 5 Pa.  
3. When pump down is finished, wait 15 minutes  
to detect potential circuit leakage. Open service  
valves on the outdoor unit.  
ENGLISH  
15  
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FAN SPEEDS  
Forductedinstallations, checkairowandstaticpressure Insufficient air flow can cause operating problems such  
against values shown in the following diagrams.  
as icing which may damage the compressor in the  
outdoor unit.  
P a  
9 0  
8 0  
7 0  
6 0  
P a  
9 0  
8 0  
7 0  
High speed  
High speed  
6 0  
5 0  
4 0  
5 0  
4 0  
Low speed  
Low speed  
3 0  
2 0  
1 0  
3 0  
2 0  
1 0  
m 3  
m 3  
7 0 0  
8 0 0  
9 0 0  
1 0 0 0 1 1 0 0  
1 2 0 0  
1 0 0 0  
1 1 0 0  
1 2 0 0  
1 3 0 0 1 4 0 0  
1 5 0 0  
Model 18  
Model 24  
P a  
9 0  
8 0  
7 0  
6 0  
5 0  
4 0  
3 0  
2 0  
1 0  
P a  
9 0  
8 0  
7 0  
6 0  
High speed  
Low speed  
High speed  
Low speed  
5 0  
4 0  
3 0  
2 0  
1 0  
m 3  
m 3  
1 5 0 0  
1 6 0 0  
1 7 0 0  
1 8 0 0 1 9 0 0  
2 0 0 0  
1 8 0 0  
1 9 0 0  
2 0 0 0  
2 1 0 0 2 2 0 0  
2 3 0 0  
Model 30-36  
Model 48  
P a  
9 0  
8 0  
7 0  
6 0  
High speed  
5 0  
4 0  
3 0  
2 0  
1 0  
Low speed  
m 3  
1 4 0 0  
1 6 0 0  
1 8 0 0  
2 0 0 0 2 2 0 0  
2 4 0 0  
2 6 0 0 2 8 0 0  
Model 60  
Note : 07-18K for free blow application.  
16  
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WIRING DIAGRAMS  
Wiring  
Prepare the power source for exclusive with the air conditioner.  
The supply voltage must comply with the rated voltage of the air conditioner. The plug socket shall be accessible after  
installation.  
Remark: All the wiring must be based on the wiring nameplate which is shown on the model.  
CAUTIONS  
• Perform the wiring with sufficient capacity. Installation places legally require a short circuit isolator to be attached  
to prevent electrical shock.  
• Do not extend the power cable code by cutting.  
• Power voltage should be in the range of 90%-110% of rated voltage.  
• The plug of the air conditioner takes a grounding leg, and clients should use a grounding socket so that the air  
conditioner can be grounded efficiently.  
• If the power cord is damaged, replacement should be conducted by qualified technician or a serviceman.  
NOTE  
Remark per EMC Directive 89/336/EEC  
To prevent flicker impressions during the start of the compressor (technical process), following installation conditions  
do apply.  
1. 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 32 A fusing  
point.  
2. No other equipment has to be connected with this power line.  
3. For detailed installation acceptance, please refer to your contract with the power supplier if restrictions do apply  
for products like washing machines, air conditioner or electrical ovens.  
4. For power details of the air conditioner, refer to the rating plate of the product.  
5. For any question, contact your local dealer.  
CAUTIONS  
• Never modify the unit by removing any of the safety guards or by bypassing any of the safety interlock swithces.  
• Connect the connecting cable correctly and connect the connecting cable to terminal as identified with their  
respective marks.  
• Do not scratch the conductive core & inner insulator of power supply cables and do not deform or smash on  
the surface of cables.  
Electrical work  
Model 18  
Power supply  
220-240V/1Ph/50Hz  
Circuit  
Power source breaker/  
fuse  
Wiring  
size  
Model  
Indoor Unit  
L
N
1
1
2(N)  
N
3
3
4
4
T3  
T3  
E
E
18000 Btu/h  
24000 Btu/h  
30000 Btu/h  
220-240V - 50Hz  
220-240V - 50Hz  
380V 3N - 50Hz  
30/25A 3 x 1.5 mm2  
40/25A 3 x 2.5 mm2  
20/15A 5 x 1.5 mm2  
25/15A 5 x 2.5 mm2  
Outdoor Unit  
36000-60000 Btu/h 380V 3N - 50Hz  
Model 24  
Power supply  
220-240V/1Ph/50Hz  
NOTE  
The supply voltage must be consistent with the rate voltage  
of the air conditioner.  
Indoor Unit  
L
L
N
N
1
2
3
T3  
T3  
E
E
1
N
3
Outdoor Unit  
Model 30-60  
Power supply  
380V/3Ph/50Hz  
Indoor Unit  
A
A
B
B
C
C
N
N
1
2
2
3
3
1
Outdoor Unit  
ENGLISH  
17  
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YUKC 07  
YUKC 09  
YUKC 12  
YUKC 18  
RRJC 18  
RRJC 27  
A/F IPM(PFC)  
18  
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DC Inverter R-410A  
INDOOR UNIT  
(E)  
X
Y
P
Q
L
N
Y/G  
Power supply  
1-Phase  
220-240V  
(3-core cable 3x1.0mm2  
)
3-core sheild cable  
Power supply  
1-Phase  
(3-core cable 3x2.5mm2  
220-240V  
)
For 18,000-24,000 Btu/h  
OUTDOOR UNIT  
L1 L2 L3  
N
3-core sheild cable  
Power supply  
3-Phase  
380-415V  
(5-core cable 5x2.5mm2  
)
Power supply  
1-Phase  
220-240V  
(3-core cable 3x2.5mm2  
)
For 36,000-60,000 Btu/h  
ENGLISH  
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DEFROSTING OPERATION (Available for heating only)  
1. Condition to start defrosting: Units will switch to defrosting  
mode when either of the following conditions is met.  
b. Unithasbeenrunningathightemperatureprotection  
mode* for 90 minutes. (*High temperature  
protection mode: when coil temperature of indoor  
unit reaches 55°C, outdoor unit will turn off external  
unit fan but still keep compressor running).  
a. Unit has been running under T3 < 0ºC for 40  
minutes and T3 < -3ºC for 3 minutes.  
2. Condition to stop defrosting: Units will switch back to  
heating mode when either of the following conditions  
is met.  
Starting Defrosting Mode under condition a.  
T3 (°C)  
Time  
Elapsed  
(min)  
a. Unit has been running at defrosting mode for 10  
minutes.  
b. T3 > 20ºC  
Remark: T3 is coil temperature of outdoor units.  
3 min  
40 min  
Heating mode  
Defrosting mode  
SERVICE AND MAINTENANCE  
The units are designed to operate for long periods of time with a minimum of maintenance. However, the following  
operations must be performed regularly.  
COMPONENT  
Air filter  
MAINTENANCE OPERATIONS  
RECOMMENDED FREQUENCY  
1 - Clean with a vacuum cleaner or tap gently Every month or more often if  
then wash in warm water (40°C) with a mild necessary.  
detergent.  
2 - Rinse and dry before replacing on unit.  
3 - Never use petrol, alcohol or any other chemi-  
cal product.  
Unit casing  
1 - Remove dust from the front panel with a soft Every month or more often if  
duster or wipe a damp cloth with a mild soap necessary.  
solution.  
2 - Never use petrol, alcohol or any other chemi-  
cal product.  
Drain pan and evacu- 1 - Clean and check for obstructions.  
ation piping  
Each season before start up.  
Indoor / Outdoor coils  
Compressor  
1 - Check condition and remove dust from be- Each season before start up.  
tween coil fins.  
1 - No maintenance required.  
20  
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OPERATION TIPS  
The following events may occur during normal operation.  
1. Protection of the air conditioner.  
Compressor protection  
• The compressor can not restart for 3 minutes after it stops.  
Anti-cold air (Cooling and heating models only)  
The unit is designed not to blow cold air on HEAT mode, when the indoor heat exchanger is in one of the  
following three situations and the set temperature has not been reached.  
A) When heating has just starting.  
B) Defrosting.  
C) Low temperature heating.  
• The indoor or outdoor fan stop running when defrosting (Cooling and heating models only).  
Defrosting (Cooling and heating models only)  
Frost may be generated on the outdoor unit during heat cycle when outdoor temperature is low and humidity is  
high resulting in lower heating efficiency of the air conditioner.  
During this condition air conditioner will stop heating operation and start defrosting automatically.  
The time to defrost may vary from 4 to 10 minutes according to the outdoor temperature and the amount of  
frost buildup on the outdoor unit.  
2. A white mist coming out from the indoor unit.  
A white mist may generate due to a large temperature difference between air inlet and air outlet on COOL mode  
in an indoor environment that has a high relative humidity.  
A white mist may generate due to moisture generated from defrosting process when the air conditioner restarts  
in HEAT mode operation after defrosting.  
3. Low noise of the air conditioner.  
You may hear a low hissing sound when the compressor is running or has just stopped running.  
This sound is the sound of the refrigerant flowing or coming to a stop.  
You can also hear a low “squeak” sound when the compressor is running or has just stopped running. This is caused  
by heat expansion and cold contraction of the plastic parts in the unit when the temperature is changing.  
A noise may be heard due to louver restoring to its original position when power is first turned on.  
4. Dust is blown out from the indoor unit.  
This is a normal condition when the air conditioner has not been used for a long time or during first use of the  
unit.  
5. A peculiar smell comes out from the indoor unit.  
This is caused by the indoor unit giving off smells permeated from building material, from furniture, or smoke.  
6. The air conditioner turns to FAN only mode from COOL or HEAT (for cooling and heating models only)  
mode.  
When indoor temperature reaches the temperature setting on air conditioner, the compressor will stop automatically,  
and the air conditioner turns to FAN only mode. The compressor will start again when the indoor temperature rises  
on COOL mode or falls on HEAT mode (for cooling and heating models only) to the set point.  
7. Dripping water may generate on the surface of the indoor unit when cooling in a high relatively humidity (relative  
humidity higher than 80%). Adjust the horizontal louver to the maximum air outlet position and select HIGH fan  
speed.  
8. Heating mode (For cooling and heating models only)  
The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit during heating operation.  
When the outdoor temperature falls, heat drawn in by the air conditioner decreases accordingly. At the same time,  
heat loading of the air conditioner increases due to larger difference between indoor and outdoor temperature. If a  
comfortable temperature can not be achieved by the air conditioner, we suggest you use a supplementary heating  
device.  
9. Auto-restart function  
Power failure during operation will stop the unit completely. For the unit without Auto-restart feature, when the  
power restores, the RUN indicator on the indoor unit starts flashing. To restart the operation, push the ON/OFF  
button on the remote controller. For the unit with Auto-restart feature, when the power restores, the unit restarts  
automatically with all the previous settings preserved by the memory function.  
10.Lightning or a car wireless telephone operating nearby may cause the unit to malfunction.  
Disconnect the unit with power and then re-connect the unit with power again. Push the ON/OFF button on the  
remote controller to restart operation.  
ENGLISH  
21  
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TROUBLE SHOOTING GUIDE  
Problem  
Probable cause  
Remedy  
A. The air conditioner does not 1. Power failure.  
run.  
open.  
1. Wait for power resume.  
2. Fuse blown or circuit breaker 2. Replace the fuse or reset the  
breaker.  
3. Voltage is too low.  
4. Faulty contactor or relay.  
5. Electrical connections loose.  
3. Find the cause and fix it.  
4. Replace the faulty component.  
5. Retighten the connection.  
6. Thermostat adjustment too low 6. Check thermostat setting.  
(in heating mode) or too high (in 7. Find the cause then replace ca-  
cooling mode).  
7. Faulty capacitor.  
8. Incorrect wiring, terminal loose.  
9. Pressure switch tripped.  
pacitor.  
8. Check and retighten.  
9. Find the cause before reset.  
B. The outdoor fan runs but the 1. Motor winding cut or grounded.  
compressor will not start. 2. Faulty capacitor.  
1. Check the wiring and the com-  
pressor winding resistance.  
2. Find the cause then replace ca-  
pacitor.  
C. There is insufficient heating 1. There is a gas leak.  
or cooling. 2. Liquid and gas line insulated to-  
gether.  
1. Remove charge, repair, evacu-  
ate and recharge.  
2. Insulate them separately.  
3. The room was probably very hot 3. Wait while unit has enough time  
(cool) when you started the sys-  
tem.  
to cool the room.  
D. The compressor runs con- 1. Thermostat adjustment too low 1. Check thermostat setting.  
tinuously. (in heating mode) or too high (in 2. Check condenser air circulation.  
cooling mode).  
2. Faulty fan.  
3. Refrigerant charge too low, leak.  
4. Air or incondensables in refriger-  
ant circuit.  
3. Find leak, repair and recharge.  
4. Remove charge, evacuate and  
recharge.  
E. The compressor starts but 1. Too much or too little refrigerant. 1. Remove charge, evacuate and  
shuts down quickly. 2. Faulty compressor. recharge.  
3. Air or incondensables in refriger- 2. Determine the cause and replace  
ant circuit. compressor.  
4. Changeover valve damaged or 3. Remove charge, evacuate and  
blocked open (heat pump unit).  
recharge.  
4. Replace it.  
F. Clicking sound is heard from In heating or cooling operation any In heating or cooling operation any  
the air conditioner.  
plastic parts may expand or shrink plastic parts may expand or shrink  
due to a sudden temperature change due to a sudden temperature change  
in this event, a clicking sound may in this event, a clicking sound may  
occur.  
occur.  
22  
ENGLISH  
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DECLARATION OF CONFORMITY  
DECLARATION OF CONFORMITY  
Type of Equipment  
Brand Name  
Type Designation  
Air Conditioners  
YORK  
YUKC-YUJC 12/18/24/30/36/48/60FU  
Application of Council  
Directive (s)  
EMC Directive 89/336/EEC, Low Voltage Directive 73/23/EEC and Machine Safety Directive: MSD 98/37/CE  
The following harmonized standards have been applied:  
Standard (s)  
EN 60 335-1: 2002+A11  
EN 60 335-2-40 : 2003  
EN 50366 : 2003  
EN 55 014-1/A2 : 2002  
EN 55 104-2/A1 : 2001  
EN 61000-3-2 : 2002  
EN 61000-3-3 : 1995+A1  
The product complies with the harmonized European safety standards and harmonized EMC standards listed above.  
We have internal production control system that ensures compliance between the manufacturer products and the technical documentation.  
The product is CE mark.  
We declare under our sold responsibility that the equipment follows the provisions of the Directives stated above.  
Authorized Representative:  
CM Choi  
Shipping Manager  
YORK International (Northern Asia) Ltd.  
15/F., Tower II, World Trade Square, 123 Hoi Bun Road, Kwun Tong, Kowloon, Hong Kong  
Telephone: (852) 2331 9286 Fax: (852) 2331 9840  
Technical Service Division: Telephone: (852) 2331 9286 Fax: (852) 2304 0068  
INSTALLATION, REMOVAL AND DISPOSAL  
This product contains refrigerant under pressure, rotating parts, and electrical connections which may be a danger and cause injury!  
All work must only be carried out by competent persons using suitable protective clothing and safety precautions.  
Read the Manual  
Risk of electric shock  
Unit is remotely controlled and  
may start without warning  
1. Isolate all sources of electrical supply to the unit including any control system supplies switched by the unit. Ensure that all points of electrical and  
gas isolation are secured in the OFF position. The supply cables and gas pipework may then be disconnected and removed. For points of connection  
refer to unit installation instructions.  
2. Remove all refrigerant from each system of the unit into a suitable container using a refrigerant reclaim or recovery unit. This refrigerant may then be  
reused, if appropriate, or returned to the manufacturer for disposal. Under No circumstances should refrigerant be vented to atmosphere. Where  
appropriate, drain the refrigerant oil from each system into a suitable container and dispose of according to local laws and regulations governing  
disposal of oily wastes.  
3. Packaged unit can generally be removed in one piece after disconnection as above. Any fixing down bolts should be removed and then unit lifted from  
position using the points provided and equipment of adequate lifting capacity. Reference MUST be made to the unit installation instructions for unit  
weight and correct methods of lifting. Note that any residual or spilt refrigerant oil should be mopped up and disposed of as described above.  
4. After removal from position the unit parts may be disposed of according to local laws and regulations.  
J368-EN.indd 23  
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