Tosot TUHD18ND3F1O User manual

DC INVERTER U-MATCH AIR
CONDITIONERS
(GC201908-Ⅱ)
Capacity:5~14kW (17100~48000Btu/h)
Rate Frequency: 60Hz
Operation Range: -18.0℃(0℉) ~ 46.1℃ (115.0℉)

CONTENTS
PRODUCT...........................................................................................................................1
1 MODELS LIST..................................................................................................................2
1.1 Outdoor Unit..........................................................................................................................2
1.2 Indoor Unit.............................................................................................................................3
2 NOMENCLATURE............................................................................................................4
2.1 Outdoor Unit..........................................................................................................................4
2.2 Intdoor Unit............................................................................................................................4
3 PRODUCT DATA..............................................................................................................6
3.1 Product Data of Indoor Unit ...................................................................................................6
3.2 Operation Range.................................................................................................................10
3.3 Electrical Data .....................................................................................................................10
4 PIPING DIAGRAM..........................................................................................................12
CONTROL.........................................................................................................................13
1 OPERATION FLOWCHART ...........................................................................................14
1.1 Cooling/Dry Operation.........................................................................................................14
1.2 Heating Operation ...............................................................................................................15
2 WIRELESS REMOTE CONTROLLER............................................................................16
2.1 Operation and Display View.................................................................................................16
3 WIRED CONTROLLER ..................................................................................................18
3.1 Display View........................................................................................................................18
3.2 Operation View....................................................................................................................20
4 OPERATION INSTRUCTION OF SPECIAL FUNCTIONS..............................................23
4.1 Setting of Filter Clean Reminder Function ...........................................................................23
4.2 Low Temperature Drying Function .......................................................................................25
4.3 Lock Function......................................................................................................................25
4.4 Memory Function.................................................................................................................26
4.5 Door Control Function/Human Sensitive Function ...............................................................26
4.6 Switch between Fahrenheit and Centigrade ........................................................................26
4.7 Enquiry of Ambient Temperature..........................................................................................26
4.8 Enquiry of Historical Malfunction..........................................................................................27
4.9 Debugging Function.............................................................................................................27
5 INSTALLATION OF WIRED CONTROLLER...................................................................31
5.1 Standard Accessories..........................................................................................................31
5.2 Installation Position and Requirement..................................................................................31
5.3 Installation of Wired Controller.............................................................................................31
5.4 Removal of Wired Controller................................................................................................32

6 TROUBLESHOOTING....................................................................................................33
6.1 Display of Error Code ..........................................................................................................33
7 CENTRALIZED CONTROLLER .....................................................................................34
7.1 Smart Zone Controller .........................................................................................................34
7.2 Additional Special Functions................................................................................................37
INSTALLATION..................................................................................................................50
1 INDOOR UNIT INSTALLATION ......................................................................................51
1.1 Installation of Duct Type.......................................................................................................51
1.2 Installation of Air Handler.....................................................................................................60
2 OUTDOOR UNIT INSTALLATION ..................................................................................61
2.1 Before Installation................................................................................................................61
2.2 Installation Site....................................................................................................................62
2.3 Caution for Installation.........................................................................................................62
2.4 Dimension Data...................................................................................................................63
3 REFRIGERATION PIPING WORK .................................................................................64
3.1 Refrigeration Piping Work Procedures and Caution in Connecting ......................................64
3.2 Specification of Connection Pipe .........................................................................................68
4 ELECTRIC WIRING WORK............................................................................................69
4.1 Wiring Precautions...............................................................................................................69
4.2 Electrical Wiring...................................................................................................................69
MAINTENANCE.................................................................................................................73
1 TROUBLE TABLE...........................................................................................................74
1.1 Main Control Malfunction.....................................................................................................74
1.2 Description of Drive Malfunction ..........................................................................................76
2 FLOW CHART OF TROUBLESHOOTING .....................................................................77
2.1 Troubleshooting Flow Chart of Main Control Malfunction.....................................................77
2.2 Troubleshooting Flow Chart of Drive Malfunction.................................................................84
2.3 Interface ..............................................................................................................................89
3 WIRING DIADRAM.........................................................................................................94
3.1 Outdoor Unit........................................................................................................................94
3.2 Indoor Unit...........................................................................................................................95
4 DISASSEMBLYAND ASSEMBLY PROCEDURE OF MAIN PARTS ..............................97
4.1 Outdoor Unit........................................................................................................................97
4.2 Indoor Unit.........................................................................................................................101
5 EXPLODED VIEWSAND SPARE PART LIST..............................................................106
5.1 Outdoor Unit......................................................................................................................106
5.2 Indoor Unit......................................................................................................................... 115

TOSOT DC INVERTER U-MATCH AIR
1
PRODUCT

TOSOT DC INVERTER U-MATCH AIR
2
1 MODELS LIST
1.1 Outdoor Unit
Model Name
Power Supply
(V/ Ph/ Hz)
Appearance
TUHD18ND3F1O
208/230V ~60Hz
TUHD24ND3F1O
208/230V ~60Hz
TUHD30ND3F1O
208/230V ~60Hz
TUHD36ND3F1O
208/230V ~60Hz
TUHD42ND3F1O
208/230V ~60Hz
TUHD48ND3F1O
208/230V ~60Hz

TOSOT DC INVERTER U-MATCH AIR
3
1.2 Indoor Unit
Type
Model Name
Nominal
Capacity
Cooling/Heating
(Btu/h)
Power
Supply
(V/ Ph/ Hz)
Appearance
Duct
Type
TFH18D3F2I
TFH18D3F3I
17100/19100
208/230V ~60Hz
TFH24D3F2I
TFH24D3F3I
23800/27200
208/230V ~60Hz
TFH30D3F2I
TFH30D3F3I
29000/31200
208/230V ~60Hz
TFH36D3F2I
TFH36D3F3I
34000/41000
208/230V ~60Hz
TFH42D3F2I
TFH42D3F3I
41000/47000
208/230V ~60Hz
TFH48D3F2I
TFH48D3F3I
48000/51000
208/230V ~60Hz
Air
Handler
TUD36A/B-D(U)
34000/41000
208/230V ~60Hz
TUD48A/B-D(U)
48000/51000
208/230V ~60Hz
NOTE:1 Ton =12000Btu/h = 3.517kW
NOTE:
The universal outdoor units means that the customer can choose any of three kind of indoor unit to
match the outdoor unit without any change with it.

TOSOT DC INVERTER U-MATCH AIR
4
2 NOMENCLATURE
2.1 Outdoor Unit
T
U
H
D
18
N
D
3
F1
O
1
2
3
4
5
6
7
8
9
10
No.
Description
Options
1
TOSOT.
Capital Letter :T
2
Unit Type
U=U-Match Outdoor Unit
3
Product Type
C=Cool Only
H=Heat Pump without Aux Electric Heaters
4
Compressor Power Supply
Type Code
N=Constant Frequency
D=DC Inverter
A=AC Inverter
5
Nominal Cooling Capacity
Nominal Cooling Capacity
=Number×1000Btu/h
6
Climate Type
N=Climate T1 Condition
T=Climate T3 Condition
7
Power Supply Code
K= 220-240V ~50Hz
M=380-415V 3N~ 50Hz
D=208/230V ~60Hz
8
Refrigerant
1 =R22; 2=R407C; 3=R410A
9
Design Code
Design Code: A, B, C, D……
Design Change Code=0 (default)
1,2,3......
10
Unit Code
O=Outdoor unit
2.2 Intdoor Unit
T
F
H
18
T
D
3
F2
I
1
2
3
4
5
6
7
8
9
No.
Description
Options
1
TOSOT.
Capital Letter :T
2
Unit Type
F=Duct Type; K=Cassette Type; T=Floor-Ceiling Type
3
Product Type
C=Cool Only
H=Heat Pump without Aux Electric Heaters
4
Nominal Cooling Capacity
Nominal Cooling Capacity
=Number×1000Btu/h
5
Climate Type
Omit=Climate T1 Condition
T=Climate T3 Condition
6
Power Supply Code
K= 220-240V~ 50Hz
M=380-415V 3N~ 50Hz
D=208/230V~ 60Hz
7
Refrigerant
1 =R22; 2=R407C; 3=R410A
8
Design Code
Design Code: A, B, C, D……
Design Change Code=0 (default)
1,2,3......
9
Unit Code
I=Indoor unit

TOSOT DC INVERTER U-MATCH AIR
5
TU
D
36
A
B
D
(U)
1
2
3
4
5
6
7
No.
Description
Options
1
Product code
TOSOT U-match
2
Motor type
Omit =AC motor; D=DC motor
3
Cooling capacity code
Nominal capacity (kBTU)
4
Unit type
Air Handler
5
Design number
Named in order of A, B, C, or combined with 1, 2, 3…
6
Power supply
D=208/230V ~60Hz
7
Exporting country
U=North America

TOSOT DC INVERTER U-MATCH AIR
6
3 PRODUCT DATA
3.1 Product Data of Indoor Unit
Duct Type
Model
Indoor unit
TFH18D3F2I
TFH18D3F3I
TFH24D3F2I
TFH24D3F3I
Product Code
CF022N0980
CF022N0950
CF022N0970
CF022N0940
Outdoor unit
TUHD18ND3F1O
TUHD18ND3F1O
TUHD24ND3F1O
TUHD24ND3F1O
Product Code
CF090W1040
CF090W1040
CF090W1060
CF090W1060
Capacity
Cooling Capacity
kW
5.00（1.60-5.80）
5.00（1.60-5.80）
7.00（2.40-8.50）
7.00（2.40-8.50）
Heating Capacity
kW
5.60（1.40-6.80）
5.60（1.40-6.80）
8.00（2.40-9.50）
8.00（2.40-9.50）
Power Input
Cooling
kW
1.55（0.55-1.80）
1.55（0.55-1.80）
2.30（0.85-2.50）
2.30（0.85-2.50）
Heating
kW
1.60（0.50-1.90）
1.60（0.50-1.90）
2.50（0.80-2.75）
2.50（0.80-2.75）
SEER / HSPF
(Btu/h)/W
16.00/9.00
16.00/9.00
16.00/9.00
16.00/9.00
Indoor Unit
TFH18D3F2I
TFH18D3F3I
TFH24D3F2I
TFH24D3F3I
Power Supply
—
208/230V ~60Hz
Fan
Drive
—
Direct
Direct
Direct
Direct
Motor Output
kW
0.06×1
0.06×1
0.15×1
0.15×1
Air Flow
m3/h
(CFM)
1200
(705)
1200
(705)
1400
(820)
1400
(820)
Rated Ext. Static Pressure
Pa
(InWg)
50
(0.2)
50
(0.2)
50
(0.2)
50
(0.2)
Ext. Static Pressure Range
Pa
(InWg)
0-100
(0-0.4)
0-100
(0-0.4)
0-200
(0-0.8)
0-200
(0-0.8)
Sound Pressure Level(H/M/L)
dB(A)
43/41/40
43/41/40
41/40/38
41/40/38
Air Filter
—
Aluminum
Aluminum
Aluminum
Aluminum
Drain Piping
mm
(inch)
Φ20×1.2
(φ0.79×0.05)
Φ26×3
(φ1.02×0.12)
Φ20×1.2
(φ0.79×0.05)
Φ26×3
(φ1.02×0.12)
Outline Dimensions (W×H×D)
mm
(inch)
1280×270×560
(50.4×10.6×22.0)
1280×270×560
(50.4×10.6×22.0)
1225×290×775
(48.2×11.4×30.5)
1225×290×775
(48.2×11.4×30.5)
Net Weight
kg
(lb)
34.0
(75.0)
35.0
(77.0)
48.0
(106.0)
49.0
(108.0)
Outdoor Unit
TUHD18ND3F1O
TUHD18ND3F1O
TUHD24ND3F1O
TUHD24ND3F1O
Power Supply
—
208/230V ~60Hz
Heat Exchange
—
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Compressor
Type
—
Rotary
Rotary
Rotary
Rotary
Power Input
W
1485
1485
2550
2550
Refrigerant
Control
—
Electronic
Expansion Valve
Electronic
Expansion Valve
Electronic
Expansion Valve
Electronic
Expansion Valve
Charge
kg
(oz)
1.40
(49.39)
1.40
(49.39)
2.20
(77.62)
2.20
(77.62)
Outline Dimensions (W×H×D)
mm
(inch)
955×700×395
(37.6×27.6×15.6)
955×700×395
(37.6×27.6×15.6)
980×790×425
(38.6×31.1×16.7)
980×790×425
(38.6×31.1×16.7)
Net Weight
kg
(lb)
49.0
(108.0)
49.0
(108.0)
68.0
(150.0)
68.0
(150.0)
Piping
Connections
Liquid
Inch
Φ1/4
Φ1/4
Φ3/8
Φ3/8
Gas
Inch
Φ1/2
Φ1/2
Φ5/8
Φ5/8
Max. Length
m
(ft)
50
(164.0)
50
(164.0)
50
(164.0)
50
(164.0)
Max. Height
m
(ft)
15
(49.2)
15
(49.2)
15
(49.2)
15
(49.2)

TOSOT DC INVERTER U-MATCH AIR
7
Model
Indoor unit
TFH30D3F2I
TFH30D3F3I
TFH36D3F2I
TFH36D3F3I
Product Code
CF022N1010
CF022N1000
CF022N0920
CF022N0930
Outdoor unit
TUHD30ND3F1O
TUHD30ND3F1O
TUHD36ND3F1O
TUHD36ND3F1O
Product Code
CF090W1050
CF090W1050
CF090W1030
CF090W1030
Capacity
Cooling Capacity
kW
8.50(2.40-8.70)
8.50(2.40-8.70)
10.00（4.60-12.50）
10.00（4.60-12.50）
Heating Capacity
kW
9.20(2.40-9.90)
9.20(2.40-9.90)
12.00（4.30-14.70）
12.00（4.30-14.70）
Power Input
Cooling
kW
3.50(0.80-3.70)
3.50(0.80-3.70)
3.60（0.90-4.00）
3.60（0.90-4.00）
Heating
kW
3.10(0.80-3.50)
3.10(0.80-3.50)
3.40（0.80-3.80）
3.40（0.80-3.80）
SEER / HSPF
(Btu/h)/W
16.00/9.00
16.00/9.00
16.00/9.00
16.00/9.00
Indoor Unit
TFH30D3F2I
TFH30D3F3I
TFH36D3F2I
TFH36D3F3I
Power Supply
—
208/230V ~60Hz
Fan
Drive
—
Direct
Direct
Direct
Direct
Motor Output
kW
0.15×1
0.15×1
0.25×1
0.25×1
Air Flow
m3/h
(CFM)
1600
(940)
1600
(940)
2000
(1175)
2000
(1175)
Rated Ext. Static Pressure
Pa
(InWg)
50
(0.2)
50
(0.2)
50
(0.2)
50
(0.2)
Ext. Static Pressure Range
Pa
(InWg)
0-200
(0-0.8)
0-200
(0-0.8)
0-200
(0-0.8)
0-200
(0-0.8)
Sound Pressure Level(H/M/L)
dB(A)
41/40/38
41/40/38
49/48/47
49/48/47
Air Filter
—
Aluminum
Aluminum
Aluminum
Aluminum
Drain Piping
mm
(inch)
Φ20×1.2
(φ0.79×0.05)
Φ26×3
(φ1.02×0.12)
Φ20×1.2
(φ0.79×0.05)
Φ26×3
(φ1.02×0.12)
Outline Dimensions (W×H×D)
mm
(inch)
1225×290×775
(48.2×11.4×30.5)
1225×290×775
(48.2×11.4×30.5)
1340×350×750
(52.8×13.8×29.5)
1340×350×750
(52.8×13.8×29.5)
Net Weight
kg
(lb)
48.0
(106.0)
49.0
(108.0)
58.0
(128.0)
59.0
(130.0)
Outdoor Unit
TUHD30ND3F1O
TUHD30ND3F1O
TUHD36ND3F1O
T UHD36ND3F1O
Power Supply
—
208/230V ~60Hz
Heat Exchange
—
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Compressor
Type
—
Rotary
Rotary
Rotary
Rotary
Power Input
W
2550
2550
4580
4580
Refrigerant
Control
—
Electronic
Expansion Valve
Electronic
Expansion Valve
Electronic
Expansion Valve
Electronic
Expansion Valve
Charge
kg
(oz)
2.40
(84.67)
2.40
(84.67)
3.50
(123.48)
3.50
(123.48)
Outline Dimensions (W×H×D)
mm
(inch)
980×790×425
(38.6×31.1×16.7)
980×790×425
(38.6×31.1×16.7)
1105×1110×440
(43.5×43.7×17.3)
1105×1110×440
(43.5×43.7×17.3)
Net Weight
kg
(lb)
70.0
(154.0)
70.0
(154.0)
101.0
(223.0)
101.0
(223.0)
Piping
Connections
Liquid
Inch
Φ3/8
Φ3/8
Φ3/8
Φ3/8
Gas
Inch
Φ5/8
Φ5/8
Φ5/8
Φ5/8
Max. Length
m
(ft)
50
(164.0)
50
(164.0)
70
(229.7)
70
(229.7)
Max. Height
m
(ft)
15
(49.2)
15
(49.2)
15
(49.2)
15
(49.2)

TOSOT DC INVERTER U-MATCH AIR
8
Model
Indoor unit
TFH42D3F2I
TFH42D3F3I
TFH48D3F2I
TFH48D3F3I
Product Code
CF022N0910
CF022N0900
CF022N0960
CF022N0990
Outdoor unit
TUHD42ND3F1O
TUHD42ND3F1O
TUHD48ND3F1O
TUHD48ND3F1O
Product Code
CF090W1020
CF090W1020
CF090W1070
CF090W1070
Capacity
Cooling Capacity
kW
12.00(3.60-12.50)
12.00(3.60-12.50)
14.00(3.90-14.60)
14.00(3.90-14.60)
Heating Capacity
kW
13.80(3.90-15.50)
13.80(3.90-15.50)
15.00(3.80-17.00)
15.00(3.80-17.00)
Power Input
Cooling
kW
4.00(0.65-4.65)
4.00(0.65-4.65)
5.00(1.20-5.70)
5.00(1.20-5.70)
Heating
kW
4.30(0.80-4.90)
4.30(0.80-4.90)
5.00(1.10-5.50)
5.00(1.10-5.50)
SEER / HSPF
(Btu/h)/W
16.00/9.00
16.00/9.00
16.00/9.00
16.00/9.00
Indoor Unit
TFH42D3F2I
TFH42D3F3I
TFH48D3F2I
TFH48D3F3I
Power Supply
—
208/230V ~60Hz
Fan
Drive
—
Direct
Direct
Direct
Direct
Motor Output
kW
0.56×1
0.56×1
0.56×1
0.56×1
Air Flow
m3/h
(CFM)
2200
(1300)
2200
(1300)
2300
(1350)
2300
(1350)
Rated Ext. Static Pressure
Pa
(InWg)
50
(0.2)
50
(0.2)
50
(0.2)
50
(0.2)
Ext. Static Pressure Range
Pa
(InWg)
0-200
(0-0.8)
0-200
(0-0.8)
0-200
(0-0.8)
0-200
(0-0.8)
Sound Pressure Level(H/M/L)
dB(A)
49/48/47
49/48/47
46/45/44
46/45/44
Air Filter
—
Aluminum
Aluminum
Aluminum
Aluminum
Drain Piping
mm
(inch)
Φ20×1.2
(φ0.79×0.05)
Φ26×3
(φ1.02×0.12)
Φ30×1.5
(φ1.18×0.06)
Φ26×3
(φ1.02×0.12)
Outline Dimensions (W×H×D)
mm
(inch)
1340×350×750
(52.8×13.8×29.5)
1340×350×750
(52.8×13.8×29.5)
1500×390×800
(59.1×15.4×31.5)
1500×390×800
(59.1×15.4×31.5)
Net Weight
kg
(lb)
61.0
(135.0)
62.0
(137.0)
78.0
(102.0)
78.0
(102.0)
Outdoor Unit
TUHD42ND3F1O
TUHD42ND3F1O
TUHD48ND3F1O
TUHD48ND3F1O
Power Supply
—
208/230V ~60Hz
Heat Exchange
—
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Cross Fin Coil
Compressor
Type
—
Rotary
Rotary
Rotary
Rotary
Power Input
W
4580
4580
4580
4580
Refrigerant
Control
—
Electronic
Expansion Valve
Electronic
Expansion Valve
Electronic
Expansion Valve
Electronic
Expansion Valve
Charge
kg
(oz)
3.70
(130.54)
3.70
(130.54)
4.00
(141.12)
4.00
(141.12)
Outline Dimensions (W×H×D)
mm
(inch)
960×1350×410
(37.8×53.1×16.1)
960×1350×410
(37.8×53.1×16.1)
960×1350×410
(37.8×53.1×16.1)
960×1350×410
(37.8×53.1×16.1)
Net Weight
kg
(lb)
107.0
(236.0)
107.0
(236.0)
107.0
(236.0)
107.0
(236.0)
Piping
Connections
Liquid
Inch
Φ3/8
Φ3/8
Φ3/8
Φ3/8
Gas
Inch
Φ5/8
Φ5/8
Φ5/8
Φ5/8
Max. Length
m
(ft)
70
(229.7)
70
(229.7)
70
(229.7)
70
(229.7)
Max. Height
m
(ft)
15
(49.2)
15
(49.2)
15
(49.2)
15
(49.2)

TOSOT DC INVERTER U-MATCH AIR
9
Air Handler
Model
Indoor unit
TUD36A/B-D(U)
TUD48A/B-D(U)
Product Code
EH010N0010
EH010N0020
Outdoor unit
TUHD36ND3F1O
TUHD48ND3F1O
Product Code
CF090W1030
CF090W1070
Capacity
Cooling Capacity
kW
10.00(4.60-12.50)
14.00(3.90-14.60)
Heating Capacity
kW
12.00(4.30-14.70)
15.00(3.80-17.00)
Power Input
Cooling
kW
3.40(0.90-4.00)
5.35(1.20-5.70)
Heating
kW
3.50(0.80-3.80)
5.00(1.10-5.50)
SEER / HSPF
(Btu/h)/W
16.00/9.00
16.00/9.00
Indoor Unit
TUD36A/B-D(U)
TUD48A/B-D(U)
Power Supply
—
208/230V ~60Hz
Fan
Drive
Direct
Direct
Motor Output
kW
0.30×1
0.42×1
Air Flow
m3/h
(CFM)
2000
(1175)
2400
(1410)
Rated Ext. Static Pressure
Pa
(InWg)
37
(0.15)
50
(0.2)
Ext. Static Pressure Range
Pa
(InWg)
0~100
(0-0.4)
0~125
(0-0.5)
Sound Pressure Level(H/M/L)
dB(A)
44/43/41
46/45/43
Air Filter
—
Aluminum
Aluminum
Drain Piping
mm
(inch)
Φ26×3
(Φ1.02×0.12)
Φ26×3
(Φ1.02×0.12)
Outline Dimensions (W×D×H)
mm
(inch)
538×542×1224
(21.2×21.3×48.2)
628×542×1224
(24.7×21.3×48.2)
Net Weight
kg
(lb)
70
(154)
75
(165)
Outdoor Unit
TUHD36ND3F1O
TUHD48ND3F1O
Power Supply
—
208/230V ~60Hz
Heat Exchange
—
Cross Fin Coil
Cross Fin Coil
Compressor
Type
—
Rotary
Rotary
Power Input
W
4580
4580
Refrigerant
Control
—
Electronic Expansion Valve
Electronic Expansion Valve
Charge
kg
(oz)
3.50
(123.48)
4.00
(141.12)
Outline Dimensions (W×H×D)
mm
(inch)
1105×1110×440
(43.5×43.7×17.3)
960×1350×410
(37.8×53.1×16.1)
Net Weight
kg
(lb)
101.0
(223.0)
107.0
(236.0)
Piping Connections
Liquid
Inch
Φ3/8
Φ3/8
Gas
Inch
Φ5/8
Φ5/8
Max. Length
m
(ft)
70
(229.7)
70
(229.7)
Max. Height
m
(ft)
15
(49.2)
15
(49.2)

TOSOT DC INVERTER U-MATCH AIR
10
NOTES:
a. The design of this unit conforms to the requirements of ARI 210/240-2008 standard.
b. The air volume is measured at the relevant standard external static pressure.
c. Cooling (heating) capacity stated above is measured under nominal working conditions
corresponding to standard external static pressure. The parameters are subject to change with the
improvement of products, in which case the values on nameplate shall prevail.
—
Indoor
Outdoor
Cooling
DB: 26.7℃(80.0℉)
WB: 19.4℃(67.0℉)
DB: 35.0℃(95.0℉)
WB: 23.9℃(75.0℉)
Heating
DB: 21.1℃(70.0℉)
WB: 15.6℃(60.0℉)
DB: 8.33℃(47.0℉)
WB: 6.11℃(43.0℉)
Piping Length
18k~48k units
7.6m(25.0ft)
3.2 Operation Range
Mode
Range of Outdoor Temperature℃(℉)
Cooling
-18.0(0.0) ~ 46.1(115.0)
Heating
-18.0(0.0) ~23.9(75.0)
3.3 Electrical Data
3.3.1 Outdoor unit Table 1-4-1 Electrical Data of Outdoor Unit
Model
Compressor
Fan Motor
Fuse/Breaker
Capacity
Minimum
Circuit
Ampacity
Power Supply
Qty.
RLA
FLA
V/Ph/Hz
—
A
A
A
A
TUHD18ND3F1O
208V/230V ~ 60Hz
1
11.0
0.7
5/25
15.3
TUHD24ND3F1O
208V/230V ~ 60Hz
1
17.5
0.6
5/35
23.4
TUHD30ND3F1O
208V/230V ~ 60Hz
1
17.5
0.6
5/35
23.4
TUHD36ND3F1O
208V/230V ~ 60Hz
1
22.0
2.0
5/50
29.5
TUHD42ND3F1O
208V/230V ~ 60Hz
1
22.0
2.0
5/50
31.5
TUHD48ND3F1O
208V/230V ~ 60Hz
1
22.0
2.0
5/50
32.5

TOSOT DC INVERTER U-MATCH AIR
11
3.3.2 Indoor unit
Table 1-4-2 Electrical Data of Indoor Unit
Duct Type
Model
Power Supply
(V, Ph,Hz)
Capability of Air
Switch
Minimum Circuit
Ampacity
Maximum Overcurrent
Protection
A
A
A
TFH18D3F2I
TFH18D3F3I
208/230,1,60
15
2
15
TFH24D3F2I
TFH24D3F3I
208/230,1,60
15
2
15
TFH30D3F2I
TFH30D3F3I
208/230,1,60
15
2
15
TFH36D3F2I
TFH36D3F3I
208/230,1,60
15
5
15
TFH42D3F2I
TFH42D3F3I
208/230,1,60
15
5
15
TFH48D3F2I
TFH48D3F3I
208/230,1,60
15
5
15
Air Handler
Model
Power Supply
(V, Ph, Hz)
Capability of Air
Switch
Minimum Circuit
Ampacity
Maximum Overcurrent
Protection
A
A
A
TUD36A/B-D(U)
208/230,1,60
15
4
15
TUD48A/B-D(U)
208/230,1,60
15
4
15
NOTES:
RLA: Rated load amperes
LRA: Locked rotor amperes
FLA: Full load current
①The fuse is located on the main board.
②Install the disconnect device with a contact gap of at least 3mm(1/8inch) in all poles nearby the
units (Both indoor unit and outdoor unit). The appliance must be positioned so that the plug is
accessible.
③Take 2 pieces of power cord of 0.75mm²(AWG18) as the communication lines between indoor
and outdoor unit, with their longest lengths of 50m(164feet). Please select the appropriate line
length as per the actual installation conditions. The communication lines can not be twisted
together. For the unit (≤30K), it’s recommended to use 8m(26-1/4feet) long communication line.
④Take 2 pieces of power cord of 0.75mm²(AWG 18) as the communication lines between the
wired controller and the indoor unit, with their longest lengths of 30m(98-2/5feet). Please select
the appropriate line length as per the actual installation conditions. The communication lines
can not be twisted together. It’s recommended to use 8m(26-1/4feet) long communication line.
⑤The wire size of the communication line should be no less than 0.75mm²(AWG18). It’s
recommended to take 0.75mm²(AWG18) power cords as the communication line.

TOSOT DC INVERTER U-MATCH AIR
12
4 PIPING DIAGRAM
The direction of cooling
Outdoor
Intdoor
Comp
Heat exchanger
Heat exchanger with
axial flow fan
Low Pressure Switch
Muf fle
Filter
Filter
EEV
Liquid Stop Valve
with Service Port
Gas Stop Valve
with Service Port
Liquid Stop Valve
Gas Stop Valve
The direction of heating
TH-IE Indoor Environment Thermal Bulb
TH-E Indoor Evaporator Thermal Bulb
TH-OE Outdoor Environment Thermal Bulb
TH-C Outdoor Condenser Thermal BulbTH-D Outdoor Compressor Discharge Thermal Bulb

TOSOT DC INVERTER U-MATCH AIR
13
CONTROL

TOSOT DC INVERTER U-MATCH AIR
14
1 OPERATION FLOWCHART
1.1 Cooling/Dry Operation
Satisfying open
Comp. condition
Temp of indoor
≤Set temp
Comp. stop
for 3 min NY
N
Y
Y
N
Open unit running at
cool or dry mode
Indoor fan run
Comp. and outdoor
fan run
Comp. and
outdoor fan stop
Power
On

TOSOT DC INVERTER U-MATCH AIR
15
1.2 Heating Operation
Satisfying open
comp. condition
N
Y
N
Y
Y
N
Power
On
Comp. and
outdoor
fan run
Avoid cool wind
(only when comp.
start)
Temp of indoor
≥Set temp
Comp. and
outdoor fan stop
Comp. stop
for 3 min
Open unit running
at heat mode

TOSOT DC INVERTER U-MATCH AIR
16
2 WIRELESS REMOTE CONTROLLER
2.1 Operation and Display View
2
1
4
7
9
12
13 14
11
10
8
6
3
5
Table 2-2-1 Operation instruction of wireless remote controller
No.
Name
Function Description
Signal
transmitter
Signal transmitter.
ON/OFF
button
Press this button and the unit will be turned on; press it once more, and the unit will be turned off. When
turning off the unit, the Sleep function will be canceled, but the presetting time is still remained.
MODE
button
By pressing this button, Auto, Cool, Dry, Fan, Heat mode can be selected circularly. Auto mode is default
after power on. Under the Auto mode, the setting temperature will not be displayed; Under the Heat mode,
the initial value is 28℃(82℉); Under other modes, the initial value is 25℃(77℉).
AUTO; COOL; DRY; FAN; HEAT (only for cooling and heating unit).
- button
Preset temperature can be decreased by pressing this button. Pressing and holding this button for more
than 2 seconds can make the temperature changed quickly until release this button and then transmit this
order. The temperature adjustment is unavailable under the Auto mode, but the order can be sent by
pressing this button. Centigrade setting range: 16-30; Fahrenheit scale setting range 61-86.
+ button
Preset temperature can be increased by pressing this button. Pressing and holding this button for more
than 2 seconds can make the temperature changed quickly until release the button and then transmit this
order. The temperature adjustment is unavailable under the Auto mode, but the order can be sent by
pressing this button. Centigrade setting range: 16-30; Fahrenheit scale setting range 61-86.

TOSOT DC INVERTER U-MATCH AIR
17
No.
Name
Function Description
FAN
button
By pressing this button, Auto, Low, Middle, High speed can be circularly selected. After power on, Auto fan
speed is default.

Low speed
Middle speed
High speed
NOTE: Under the DRY mode, the fan will be kept running at the low speed and the fan speed isn't adjustable.
SWING
UP/DOWN
button
Press this button to set up the swing angle, which circularly changes as below:
When the guide louver starts to swing up and down, if SWING functions is canceled, the air guide louver will
stop and remains at the current position.
indicates the guide louver swings up and down among those five directions.(Simplified SWING function
applicable for some Fan Coil Units: When the wireless remote controller is energized initially with the unit
under the OFF status, it should be set by pressing the + button and the SWING button simultaneously, with
the symbol blinking twice. Then, after the unit is turned on, this function can be activated by pressing
the SWING button, with the displayed symbol indicating swing function is on and without this displayed
symbol indicating swing function is off.)
CLOCK
button
By pressing this button, the clock is allowed to be set, with blinking, and then press the +/- button to
adjust the clock within 5 seconds. If the +/-button is pressed down constantly for more than 2 seconds, the
clock setting will be increased or decreased 10 minutes every 0.5 seconds. After that, another press on the
CLOCK button accepts the setting. 12:00 is the default, when the wireless remote controller is energized.
TIMER ON
button
When TIMER ON is activated, ON will blink while the symbol will disappear. Within 5 seconds it is
allowed to set the ON time by pressing the +/- button. Each press will make the time increase or decrease
one minute. Besides, the time can also be set by pressing the +/- button constantly. that is, in the early 2.5
seconds, the time will increase/decrease quickly per single minute, and in the late 2.5, the time will
increase/decrease per ten minutes. After the desired time value is set, press TIENE ON again to conform
the setting within five seconds. After that, another press on TIMER ON will cancel the setting. Prior to this
setting, the clock shall be set to the actual time.
X-FAN
button
Pressing this button can activate or deactivate the X-FAN function. In Cool or Dry mode, by pressing this
button, if " " is displayed, it indicates the X-FAN function is activated. By repressing this button, if " "
disappears, it indicates the X-FAN function is deactivated. After energization, X-FAN OFF is defaulted. If
the unit is turned off, X-FAN can be deactivated but can't be activated.
TEMP
button
By pressing this button it is allowed to select displaying the indoor setting temperature or the indoor ambient
temperature.
Indoor setting temperature is default after the indoor unit is energized initially.
By pressing the TEMP button, when the temperature symbol is displayed, the indoor displayer will
show the indoor setting temperature; when is displayed, it will show the indoor ambient temperature;
when is invalidation, If current displays indoor ambient temperature, if received the other remote
control signal, it will display presetting temperature, 5s later, will back to display the ambient temperature.
(This function is applicable to partial of models.)
TIMER
OFF
button
By pressing this button it is available to go to the TIMER OFF setting state with the same setting method as
that of the TIMER ON, in which case the OFF symbol blinks.