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SERVICE MANUAL
DC Inverter Multi-Split Air-Condition Unit
TAS-09EH/O TAS-12EH/O TAS-18EH/O TAS-24EH/O TAS-24MVH/O
TAS-18MVH/O
Indoor Unit
TAS-09MVH
TAS-12MVH
TAS-09EH
TAS-12EH
TAS-18EH
TAS-24EH
Outdoor Unit
TAS-18MVH/O
TAS-24MVH/O
TAS-09EH/O
TAS-12EH/O
TAS-18EH/O
TAS-24EH/O
REFRIGERENT
R410A
HEAT PUMP
1 SERVICE MANUAL FOR AMERICA
Table of Contents
2. PRODUCT DATA SHEET .................................................................................... 2-1
13. EXPLODED VIEWS AND SPARE PARTS LISTS ................................................ 13-1
2 SERVICE MANUAL FOR AMERICA
1. INTRODUCTION
1.1 General
The new CMV and CS is a high efficiency DC inverter technology outdoor unit, since it’s a lego concept unit, it can be matched to several inverter indoor units such as wall mounted type with a capacity range of 9000 – 12000 BTU for each single indoor unit.
1.2 Main
DC Inverter
R410a sine wave form and 120 degree rectangular wave form in compressor driver sensor less inverter compressor driver high speed calculation for accurate sine wave form vector control smart PFC control fuzzy logic con trol
High SEER
Lego Concept
Pre-Charged .
Cooling operation at outdoor temperature down to 50
0
Heating operation at outdoor temperature down to 5
0
F
F.
Variable Speed outdoor fan.
Low noise level
EEV for each indoor unit
1.3 Tubing Connections
Flare type interconnecting tubing to be produced on site.
For further details please refer to APPENDIX A on this manual, and to the relevant indoor service
Manual,
1.4 Inbox Documentation
Each indoor unit is supplied with its own installation and operation manuals.
3 SERVICE MANUAL FOR AMERICA
2 . 1 O u t d o o r u n i t d a t a
Item
Capacity (BTU)
Cooling
Heating
SEER
HSPF
EER Cooling/COP Heating
Op Range Cool °F
Op Range Heat °F
Remote control setting temp.range °F
Dehumidification (Pts/hr)
Voltage
Current (A)
Rated/Max
Cooling
Heating
Power Consumption
(KW)Rated/Max
Cooling
Heating
Max Overload Protection
Indoor Air Circulation: L / M / H(CFM)
Indoor Noise level dB(A): L / M / H
Outdoor Fan Speed (RPM)
Outdoor Noise Level dB(A)
Indoor Fan Speeds
Connection Method
Max Pipe Length (Ft.)
Max Elevation (Ft.)
Pipe Size (In.)
Service Port Connection (In.)
Indoor Dimensions W x D x H(In.)
Indoor Package Dimensions W x D x H(In.)
Indoor Net Weight (lbs.)
Indoor Gross Weight(lbs. )
Outdoor Dimensions W x D x H(In.)
Outdoor Package Dimensions W x D x H(In.)
Outdoor Net Weight (lbs.)
Outdoor Gross Weight(lbs. )
Refrigerant
DC INVERTER 1:1
Inverter 9K
9000
Inverter 12K Inverter 18K Inverter 24K
12000 18000 24000
11000
15000 19000 24500
18.00 18.00 17.17 15.69
8.6 8.7 8.7 8.5
5~131 minus 4 ~ 109
5~131 minus 4 ~ 109
5~131 5~131 minus 4 ~ 109 minus 4 ~ 109
61~90 61~90 61~90 61~90
1.58 2.11 2.989 4.4
115/60 115/60 230/60 230/60
0.61/1.06 0.862/1.236 1.345/2.3 2.504/2.765
20 20 20 25
212/270/315 341/382/430 441/530/618 518/588/677
42/38/35 42/38/35 50/47/44 50/47/44
100~900 100~900 100~900 100~900
~ 57 ~ 57 ~ 57 ~ 57
950/1150/1300 750/900/1000 950/1100/1230 1080/1180/1280
Flare Flare Flare Flare
82ft/25m 82ft/25m 82ft/25m 82ft/25m
32.8 Ft/10m
1/4" / 3/8"
32.8 Ft/10m
1/4" / 1/2"
32.8 Ft/10m
3/8" / 5/8"
32.8 Ft/10m
3/8" / 5/8"
1/2" 1/2" 1/2" 1/2"
33.4×13.4×9.8 38.4×14.3×11.0 45.8×15.2×12.0 52.0×15.6×12.0
33.9×13.8×10.4 39.0×14.8×11.8 46.3×15.6×12.6 52.6×16.1×12.6
22
31 40 44
26 37 51 55
35.6×12.7×22.6 38.6×15.7×26.0 38.2×15.6×29.9 40.2×17.1×34.1
36.2×13.2×23.0 39.2×16.3×26.8 39.0×16.1×30.3 40.6×17.3×37.8
73 106 123 143
77 117 132 154
R410A R410A R410A R410A
4 SERVICE MANUAL FOR AMERICA
Function
Rated Voltage
Rated Frequency
Circuit Breaker Size
Op Range Cool °F
Op Range Heat °F
Rated Current (RLA) (Heating/Cooling)
Refrigerant (lbs)
outdoor
Cooling
Heating
Fan Motor
Outdoor
Fan
Compressor
Condenser
Rated Capacity (Btu)
Capacity Invert Range (W)
Input / Actual Input (W)
Max. Power (W)
Max Current (A)
SEER
Rated Capacity (Btu)
Capacity Invert Range (W)
Input / Actual Input (W)
Max. Power (W)
Max Current (A)
Declared COP / Actual COP
(w/w.h.)
Model
Input (W)
Capacitor (UFD)
Fan Motor FLA (A)
Fan Speed (RPM)
Fan Type
Fan Blade Diameter (in)
Air Flow Volume of Outdoor Unit
(CFM)(M^3/h)
Model
TYPE
Brand
Capacity (W)
Input (W)
Number of Rows
Tube Pitch x Row Pitch
Fin spacing
Fin Type
Tube Outside Dia. and Type
Coil Length x Height x Width
Number of circuits
Unit Dimensions (W x H x D) (in)
Dimensions
Packing dimensions (W x H x D)
(in)
Net / Gross Weight (lb)
Design Length
Max Line Set Height
Max Line Set Length
Connection
Charge over Design Length
Connection Pipes
Design Pressure (PSI)
TAS-18MVH/O
Heat Pump
208-230 VAC
60 Hz
20A
TAS-24MVH/O
Heat Pump
208-230 VAC
60 Hz
30A
5~131 5~131 minus 4 ~ 109
6 / 6.7 A
R410A / 3.88 minus 4 ~ 109
8 / 8.7 A
R410A / 6.61
18,000 24,000
5000(1650-7100) 6400(1750-8300)
1380/1450 1830/1882
2420 2990
10.5 13
14.8 15.6*
22,000
25,000
5800(1790-7800) 7200(2000-8400)
1,550 / 1,580 2,000 / 2,060
2579
11.3
3,200
13.9
3.75 / 3.65 3.5 / 3.4
YDK-60A-6C
YDK-60A-6C
196
196
4 / 450 VAC
4/ 450 VAC
0.98 0.98
900/750/500
Axial
18.1
900/750/500
Axial
18.5
2800 3200
C-6RZ146H1A
C-7VRN153HOW
DC
DC
Sanyo
Sanyo
6420
7110
1635
1770
2-26 2-26
1 x .866 in
0.0708 in
1 x .866 in
Louvered Fin
0.375" Rifled Tube
0.0708 in
Louvered Fin
0.375" Rifled tube
28.66 x 25.6 x .866
28.66 x 25.6 x .988
30.23 x 31.96 x .866
31.57 x 31.96 x .866
4 4
36.5 x 14.25 x 27.6 37.8x13.54x33.31
39 x 16.14 x 30.32 41.73 x 18.5 x 36.41
114.64 / 123.47
16.4'
16.4'
49.21'
0.20 oz / Ft.
1/4" / 3/8"
623.66
163.14 / 185.18
16.4'
16.4'
49.21'
0.20 oz / Ft.
1/4" x 1/2"
623.66
5 SERVICE MANUAL FOR AMERICA
2 . 2 . 1
Indoor
TAS-09MVH
S p e c i f i c a t i o n s
FAN MOTOR
Model
Input (W)
Capacitor (UFD)
Fan Motor FLA (A)
Speed (Hi/Med/Low) (RPM)
TAS-09MVH
YDK-16-4C
54
1.2/450VAC
0.25
1150 / 950 / 750
Evaporator
Number of rows
Tube pitch row / pitch (in)
Fin spacing (in)
Fin Type
Tube outside dia.(in) / Type
Coil Length x height x width (in)
Air Flow (Hi/Med/Low) (CFM)
Noise Level (dB(A)
Fan Type
Fan Diameter (in)
Fan Length (in)
Design Pressure (PSI)
22
.69 / .50
0.0614
Louvered Fin
0.2756 Rifled Tube
25.39 x 11.06 x 1
353 / 306 / 194
≤42
Cross Flow
3.661
24.921
551.14
Unit Dimensions (W x H x D) (in)
Packing Dimensions W x H x D) (in)
Net / Gross Wt (lbs)
31.1 x 10.63 x 8.27
33.86 x 13.78 x 10.43
26.45 / 30.86
Dehumidifying Volume (pt/hr) 1.8
Auto-restart YES
2 . 2 . 2
TAS-12MVH
S p e c i f i c a t i o n s
Indoor
FAN MOTOR
Model
Input (W)
Capacitor (UFD)
Fan Motor FLA (A)
Speed (Hi/Med/Low)
(RPM)
Number of rows
Tube pitch row / pitch (in)
TAS-12MVH
YDK-16-4C
54
1.2/450VAC
0.25
1200 / 950 / 850 (Cooling) 1200 / 950 / 750
(Heating)
22
.69 / .50
0.059
Louvered Fin
Evaporator
Fin spacing (in)
Fin Type
Tube outside dia.(in) /
Type
Coil Length x height x width (in)
0.2756 Rifled Tube
30.98 x 11.06 x 1
Air Flow (Hi/Med/Low) (CFM)
Noise Level (dB(A)
Fan Type
459 / 406 / 218
≤45
Cross Flow
Fan Diameter (in)
Fan Length (in)
3.818
30.393
Design Pressure (PSI)
Unit Dimensions (W x H x D) (in)
Packing Dimensions W x H x D) (in)
Net / Gross Wt (lbs)
551.14
36.61 x 10.83 x 8.27
39.96 x 13.97 x 12.79
30.86 / 37.48
Dehumidifying Volume (pt/hr)
3.03
Auto-restart YES
6 SERVICE MANUAL FOR AMERICA
Standard conditions in accordance with ANSI/AHAM RAC-1-2003, and UL 484.
Cooling:
Indoor: 80 o
Outdoor: 95 o
FDB 67 o
F DB 75
F WB o
F WB
Heating:
Indoor: 70
o
F DB 60
Outdoor: 47
o
o
F DB 43
F WB
o
F WB
Cooling
Heating
Voltage
Upper limit (DB)
Lower limit (DB)
Upper limit (DB)
Lower limit (DB)
Outdoor
110
o
F
5 o
F
75
o
F
5 o
F
2PH 198–264V/115V
3PH N/A
4.1 outdoor Unit: TAS-09EH/O
7 SERVICE MANUAL FOR AMERICA
4.2 outdoor Unit: TAS-12EH/O
4.3 outdoor Unit: TAS-18EH/O
4.4 outdoor Unit: TAS-24EH/O
8 SERVICE MANUAL FOR AMERICA
4.5 outdoor Unit: TAS-18MVH/O
9 SERVICE MANUAL FOR AMERICA
4.7 outdoor Unit: TAS-24MVH/O
50
956
560
5.1 Indoor Units Data
5.1.1 Indoor Units Capacity For 9000BTU
Capacity
9000BTU
Model
TAS-09MVH
TAS-09EH
5.1.1.1 Cooling Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed
INDOOR ENTERING AIR DB/WB TEMPERATURE [
0
F]
OUTDOOR
ENTERING AIR DB
TEMPERATURE[
0
F]
DATA 72/59 75/63 81/66 84/70 90/73
14~68
TC 80 - 110 % of nominal
10 SERVICE MANUAL FOR AMERICA
(protection range)
SC
PI
TC
77
8712
PI 0.58
80 - 105 % of nominal
25 - 50 % of nominal
9252 9828 10404 10980
0.59
0.6
86
PI 0.65
0.66
0.67
95
PI 0.71
0.72
0.74
104
PI 0.78
0.79
0.8
115
PI 0.86
0.87
0.88
L E G E N D
TC – Total Cooling Capacity, BTU SC – Sensible Capacity, BTU PI – Power Input, kW
WB – Wet Bulb Temp., (
0
F
) DB – Dry Bulb Temp., (
0
F
) ID – Indoor OD – Outdoor
5.1.1.2 Heating Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed
ID COIL ENTERING AIR DB TEMPERATURE [
0
F]
OD COILENTERING
AIR DB/WB TEM
PERATU RE[
0
F]
DATA 59 68 77
5/3
14/10
20/18
30/28
36/34
45/43
50/48
59/54
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
6912
0.49
7668
0.59
8208
0.67
8532
0.71
8748
0.89
11232
0.77
11880
0.82
12528
0.86
6372
0.54
7128
0.64
7776
0.72
8100
0.75
8208
0.95
10800
0.82
11448
0.87
12096
0.90
5940
0.59
6696
0.70
7236
0.77
7560
0.80
7776
1.01
10368
0.87
10908
0.92
11556
0.96
11 SERVICE MANUAL FOR AMERICA
59~75
(Protection Range)
TC
PI
5.1.1.3 Capacity Correction Factors
85 - 105 % of nominal
80 - 120 % of nominal
Cooling Capacity Ratio Vs. Outdoor Temperature
Cooling Capacity Correction Factor
1.4
1.2
1
0.8
0.6
0.4
0.2
0
77 86 95 104
Outdoor Temp.(deg F)
115
Heating Capacity Ratio Vs. Outdoor Temperature
Heating Capacity Correction Factor
1.4
1.2
1
0.8
0.6
0.4
0.2
0
5 14 20 30 36 45 50 59
Outdoor Temp.(deg F)
90/73
84/70
81/66
75/63
72/59
59
68
77
12 SERVICE MANUAL FOR AMERICA
5.2.1 Indoor Units Capacity For 12000BTU
Capacity
12000BTU
Model
TAS-12MVH
TAS-12EH
5.2.1.1 Cooling Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed
INDOOR ENTERING AIR DB/WB TEMPERATURE [
0
F]
OUTDOOR
ENTERING AIR DB
TEMPERATURE[
0
F]
TC
14~68
(protection range)
SC
PI
DATA 72/59 75/63 81/66 84/70 90/73
80 - 110 % of nominal
80 - 105 % of nominal
25 - 50 % of nominal
77
86
95
TC
SC
PI
TC
SC
PI
TC
SC
PI
TC
11616 12336 13104 13872 14640
10421 10603 10845 11027 11269
0.72 0.73 0.75 0.76 0.77
11040 11808 12576 13296 14064
10118 10361 10542 10785 10966
0.81 0.82 0.83 0.85 0.86
10464 11232 12000 12768 13536
9876 10058 10300 10542 10724
0.88 0.90 0.92 0.93 0.94
9936 10704 11424 12192 12960
104
PI
TC
0.97 0.98 0.99 1.01 1.02
9264 10032 10752 11520 12288
115
PI 1.07 1.08 1.09 1.11 1.13
13 SERVICE MANUAL FOR AMERICA
5.2.1.2 Heating Capacity (KW)---Run Model (Unit A,B,C or D),230V,Indoor fan at high speed
ID COIL ENTERING AIR DB TEMPERATURE [
0
F]
OD COILENTERING
AIR DB/WB TEM
PERATU RE[
0
F]
DATA 59 68 77
5/3
14/10
20/18
30/28
36/34
45/43
50/48
59/54
59~75
(Protection Range)
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
5.2.1.3 Capacity Correction Factors
Cooling Capacity Ratio Vs. Outdoor Temperature
8960
0.66
9940
0.80
10640
0.91
11060
0.96
11340
0.99
14560
1.04
15400
1.11
16240
1.16
8260
0.73
9240
0.87
10080
0.97
10500
1.02
10640
1.06
14000
1.11
14840
1.18
15680
1.22
85 - 105 % of nominal
80 - 120 % of nominal
7700
0.80
8680
0.95
9380
1.04
9800
1.08
10080
1.12
13440
1.18
14140
1.25
14980
1.30
Cooling Capacity Correction Factor
1.4
1.2
1
0.8
0.6
0.4
0.2
0
90/73
84/70
81/66
75/63
72/59
77 86 95 104
Outdoor Temp.(deg F)
115
14 SERVICE MANUAL FOR AMERICA
Heating Capacity Ratio Vs. Outdoor Temperature
Heating Capacity Correction Factor
1.4
1.2
1
0.8
0.6
0.4
0.2
0
59
68
77
5 14 20 30 36 45 50 59
Outdoor Temp.(deg F)
5.2.3 Indoor Units Capacity For 18000BTU
Capacity
18000BTU
Model
TAS-18EH
5.2.3.1 Cooling Capacity (BTU)---Run Model ,230V,Indoor fan at high speed
INDOOR ENTERING AIR DB/WB TEMPERATURE [
0
F]
OUTDOOR
ENTERING AIR DB
TEMPERATURE[0F]
14~68
(protection range)
77
TC
SC
PI
TC
SC
80 - 110 % of nominal
80 - 105 % of nominal
25 - 50 % of nominal
17424 18504
15480 15750
19656 20808 21960
16110 16380 16740
86
95
TC
SC
TC
SC
16560
15030
15696
14670
17712
15390
16848
14940
18864 19944 21096
15660 16020 16290
18000 19152 20304
15300 15660 15930
104
115
TC
SC
TC
SC
14904
14310
13896
13770
16056
14580
15048
14130
17136 18288 19440
14940 15210 15570
16128 17280 18432
14400 14760 15030
15 SERVICE MANUAL FOR AMERICA
5.2.3.2 Heating Capacity (BTU)---Run Model,230V,Indoor fan at high speed
ID COIL ENTERING AIR DB TEMPERATURE [
0
F]
OD COILENTERING
AIR DB/WB TEM
PERATU RE[
0
F]
DATA 59 68 77
5/3
14/10
20/18
30/28
36/34
45/43
50/48
59/54
59~75
(Protection Range)
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
5.2.3.3 Capacity Correction Factors
Cooling Capacity Ratio Vs. Outdoor Temperature
12160
0.96
13490
1.15
14440
1.31
15010
1.39
15390
1.42
19760
1.50
20900
1.60
22040
1.68
11210
1.05
12540
1.25
13680
1.40
14250
1.46
14440
1.52
19000
1.60
20140
1.70
21280
1.76
85 - 105 % of nominal
80 - 120 % of nominal
10450
1.15
11780
1.37
12730
1.50
13300
1.56
13680
1.62
18240
1.70
19190
1.80
20330
1.87
Cooling Capacity Correction Factor
1.4
1.2
1
0.8
0.6
0.4
0.2
0
90/73
84/70
81/66
75/63
72/59
77 86 95 104
Outdoor Temp.(deg F)
115
16 SERVICE MANUAL FOR AMERICA
Heating Capacity Ratio Vs. Outdoor Temperature
Heating Capacity Correction Factor
1.4
1.2
1
0.8
0.6
0.4
0.2
0
59
68
77
5 14 20 30 36 45 50 59
Outdoor Temp.(deg F)
5.2.4 Indoor Units Capacity For 24000BTU
Capacity
24000BTU
Model
TAS-24EH
5.2.4.1 Cooling Capacity (BTU)---Run Model,230V,Indoor fan at high speed
INDOOR ENTERING AIR DB/WB TEMPERATURE [
0
F]
OUTDOOR
ENTERING AIR DB
TEMPERATURE[0F]
14~68
(protection range)
TC
SC
PI
80 - 110 % of nominal
80 - 105 % of nominal
25 - 50 % of nominal
77
PI 1.72 1.75 1.78 1.81 1.84
86
PI 1.93 1.96 1.99 2.02 2.05
95
PI 2.11 2.14 2.20 2.23 2.26
104
PI 2.32 2.35 2.38 2.41 2.44
115
PI 2.56 2.59 2.62 2.65 2.71
17 SERVICE MANUAL FOR AMERICA
5.2.4.2 Heating Capacity (BTU)---Run Model,230V,Indoor fan at high speed
ID COIL ENTERING AIR DB TEMPERATURE [
0
F]
OD COILENTERING
AIR DB/WB TEM
PERATU RE[
0
F]
DATA 59 68 77
5/3
14/10
20/18
30/28
36/34
45/43
50/48
59/54
59~75
(Protection Range)
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
5.2.4.3 Capacity Correction Factors
Cooling Capacity Ratio Vs. Outdoor Temperature
15680
1.35
17395
1.63
18620
1.85
19355
1.96
19845
2.01
25480
2.12
26950
2.26
28420
2.37
14455
1.49
16170
1.76
17640
1.98
18375
2.07
18620
2.15
24500
2.26
25970
2.40
27440
2.48
85 - 105 % of nominal
80 - 120 % of nominal
13475
1.63
15190
1.93
16415
2.12
17150
2.20
17640
2.29
23520
2.40
24745
2.54
26215
2.65
Cooling Capacity Correction Factor
1.4
1.2
1
0.8
0.6
0.4
0.2
0
90/73
84/70
81/66
75/63
72/59
77 86 95 104
Outdoor Temp.(deg F)
115
18 SERVICE MANUAL FOR AMERICA
Heating Capacity Ratio Vs. Outdoor Temperature
Heating Capacity Correction Factor
1.4
1.2
1
0.8
0.6
0.4
0.2
0
59
68
77
5 14 20 30 36 45 50 59
Outdoor Temp.(deg F)
5.3 Capacity Correction Factor Due to Tubing Length (One Way)
TAS-09MVH
TAS-09EH
TAS-18EH
5.3.1.1 Cooling
TAS-12MVH
TAS-12EH
TAS-24EH
5.3.1.2 Heating
19 SERVICE MANUAL FOR AMERICA
6. Pressure Curve
6.1 Model
TAS-09EH/O
TAS-12EH/O
TAS-18EH/O
TAS-24EH/O
TAS-18MVH/O
TAS-24MVH/O
6.1.1 Suction Pressure Curve
6.1.2 Discharge Pressure Curve
20 SERVICE MANUAL FOR AMERICA
Model
Power Supply
Connected to
Maximum Current
Inrush Current
Starting Current
Circuit breaker
Power supply wiring - No. x cross section
Interconnecting cable - No. x cross section
Model
Power Supply
Connected to
Maximum Current
Inrush Current
Starting Current
Circuit breaker
Power supply wiring - No. x cross section
Interconnecting cable - No. x cross section
Model
Power Supply
Connected to
Maximum Current
Inrush Current
Starting Current
Circuit breaker
TAS-09EH/O
1 PH, 115 VAC,60Hz
Outdoor
9.3A
40A
1A
30A
1 X 3 X 2.5 mm
2
2 X 4 X 1 mm
2
TAS-12EH/O
1 PH, 115 VAC,60Hz
Outdoor
10.8A
40A
1A
30A
1 X 3 X 2.5 mm
2
2 X 4 X 1 mm
2
TAS-18EH/O
1 PH, 230 VAC,60Hz
Outdoor
10.1A
40A
1A
30A
21 SERVICE MANUAL FOR AMERICA
Power supply wiring - No. x cross section
Interconnecting cable - No. x cross section
1 X 3 X 2.5 mm
2
2 X 4 X 1 mm
2
Model
Power Supply
Connected to
Maximum Current
Inrush Current
Starting Current
Circuit breaker
Power supply wiring - No. x cross section
TAS-24EH/O
1 PH, 230 VAC,60Hz
Outdoor
12.2A
35A
1A
30A
1 X 3 X 2.5 mm
2
2 X 4 X 1 mm
2
Interconnecting cable - No. x cross section
Model
Power Supply
Connected to
Maximum Current
Inrush Current
Starting Current
Circuit breaker
TAS-18MVH/O
1 PH, 230 VAC,60Hz
Outdoor
10.5A
40A
Power supply wiring - No. x cross section
1A
20A
1 X 3 X 2.5 mm
2
2 X 4 X 1 mm
2
Interconnecting cable - No. x cross section
Model
Power Supply
Connected to
Maximum Current
Inrush Current
TAS-24MVH/O
1 PH, 230 VAC,60Hz
Outdoor
13A
35A
Starting Current
Circuit breaker
Power supply wiring - No. x cross section
1A
30A
1 X 3 X 2.5 mm
2
2 X 4 X 1 mm
2
Interconnecting cable - No. x cross section
Note:
Inrush current is the current when power is up. (charging the DC capacitors at outdoor unit controller).
Starting current is the current when starting the compressor
NOTE
Power wiring cord should comply with local lows and electrical regulations requirements.
22 SERVICE MANUAL FOR AMERICA
23 SERVICE MANUAL FOR AMERICA
8 . 5 T A S - 1 8 M V H / O W i r i n g D i a g r a m
24 SERVICE MANUAL FOR AMERICA
8 . 6 T A S - 2 4 M V H / O W i r i n g D i a g r a m
8 . 4 T A S - 1 8 M V H / O T A S - 2 4 M V H / O
I n d o o r - O u t d o o r W i r i n g D i a g r a m
25 SERVICE MANUAL FOR AMERICA
8 . 5 T A S - 0 9 E H / O T A S - 1 2 E H / O T A S - 1 8 E H / O T A S - 2 4 E H / O
I n d o o r - O u t d o o r W i r i n g D i a g r a m
9. REFRIGERATION
26 SERVICE MANUAL FOR AMERICA
9 . 1 T A S - 0 9 E H / O R e f r i g e r a t i o n D i a g r a m
9 . 2 T A S - 1 2 E H / O R e f r i g e r a t i o n D i a g r a m
9 . 3 T A S - 1 8 E H / O T A S - 2 4 E H / O R e f r i g e r a t i o n D i a g r a m
27 SERVICE MANUAL FOR AMERICA
9 . 4 T A S - 1 8 M V H / O R e f r i g e r a t i o n D i a g r a m
9 . 5 T A S - 2 4 M V H / O R e f r i g e r a t i o n D i a g r a m
28 SERVICE MANUAL FOR AMERICA
1 0 . T U B I N G C O N N E C T I O N S
29 SERVICE MANUAL FOR AMERICA
T U B E ( I n c h )
¼ ” ~ ” ½ ” ~ ” ¾ ”
T O R Q U E ( N m )
F l a r e N u t s
V a l v e C a p
Service Port Cap
11-13 40-45 60-65 70-75 80-85
13-20 13-20 18-25 18-25 40-50
11-13 11-13 11-13 11-13 11-13
Protection
2. Refrigerant Valve Port (use Allen wrench to open/close)
Nut
7. Unit Back Side
When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the suction line at the lowest point of the riser. Incase the indoor unit is installed above the outdoor, no trap is required
1 1 . C O N T R O L S Y S T E M
30 SERVICE MANUAL FOR AMERICA
Function of Inverter indoor unit
一、summary
1.
This control is use for DC Multi-Spilt air conditioners.
2.
Power of indoor unit supply is 220-240V/50Hz, voltage range is 170V~270V.
3.
Control precision of indoor temperature is ±1.8
O
F.
4.
Indoor fan motor is PG motor.
5.
Control accord with :
GB5956-91《safe requirement of air conditioner》
GB7725-2004《air conditioner》;GB3797-87《control equipment of electrical equipment》
Vibrancy test:frequency 50Hz,acceleration 2.5g
PCB ought to accord with GB4588.1 and GB4588.2
Electromagnetism compatibility ought to accord with relate standard of nation.
二.Base parameter
1. Use condition:ambient temperature 5
O
F~185
O
F, relative humidity =30-95%.
2. Receive distance of remote:<10m
3. Angle of remote:<120 degree
4. Control precision of temperature: ±1.8
O
F
5. Speed precision of indoor fan motor: ±10RPM
6. Time precision: <0.1%
三.Major function of control
1. Remote
Turn on/off
Mode select
auto
cooling
dehumidify
heating
ventilation
Indoor fan speed select
manual mode: high, middle, low speed
auto mode: accord difference of indoor room temp. and set temp. automatic select.
Temperature setting
Cooling: 60
O
F――90
O
F, default is 77
O
F
Heating : 60
O
F――90
O
F, default is 77
O
F
Dehumidify: default is 77
O
F and it can’t adjust.
Auto: default is 77
O
F and it can’t adjust.
Ventilation: 60
O
F――90
O
F, default is 77
O
F
Sleeping
It can set or cancel 24HR sleep .
Timer on or timer off
Timer can set 24HR on or off.
Air flower control.
Turbo running
Hold key
2. Main PCB board
31 SERVICE MANUAL FOR AMERICA
five running modes
Auto, cooling, heating, dehumidify, ventilation.
Timer function
Indoor temperature detect.
Indoor coil temperature detect.
Indoor fan speed control
cooling: turbo/high speed/middle speed/low speed/ lower speed
heating: turbo/high speed/middle speed/low speed/ lower speed
Indicate lamp
green—running indicate
yellow—timer indicate
red—turbo running
green—economic running
Indoor temperature control
Coil pipe of indoor unit overheat protection
Coil pipe of indoor unit anti frost protection
Sleep
Swing
Anti cold air in heating mode
Indoor fan motor protection
Fault display
DC Inverter 1:1
24000BTU: high middle low mode
Cooling speed
Heating speed
1280
1280
1180
1180
1080
1080
18000BTU: mode
Cooling speed
Heating speed high middle
1230
1230
1000
1000 low
950
950
12000BTU: mode
Cooling speed
Heating speed high middle
1000
1000
900
900 low
750
750
9000BTU: mode
Cooling high middle
1300 1150 low
950
32 SERVICE MANUAL FOR AMERICA
speed
Heating speed
1300 1150 950
DC Inverter 1:2
PG motor speed:
12000BTU: mode
Cooling speed
Heating speed higher
1250
1250 high middle
1200
1200
950
950 low
850
850 lower
850
750
9000BTU: mode
Cooling speed
Heating speed higher
1250
1250 high middle
1150
1150
950
950 low
750
750 lower
750
750
四、operating mode
Air conditioner have four operating mode: auto, cooling, dehumidify, heating.
1.Cooling(ΔT=Troom temp.-Tset temp.)
range of set temp. 60 O
F~90
O
F;
compressor running as below figure: compressor on
CONT 5 MIN
off
-2
O
F
+2
O
F
ΔT
It require outdoor unit to reduce power if indoor room temp. continuous less than set temp. for 5 minutes.
Air blow function:indoor blower fan continuous running 20 seconds at low speed after air conditioner turn off in cooling mode. if the flap is swing, shutdown the flap after turn off indoor blower fan.
Indoor blower fan can select one of four speed.
Fan speed is determined by the difference of room temp. and set temp. in auto wind. speed
high
middle low
2
O
F
5
O
F
9
O
F
ΔT
It have anti freeze protection of indoor coil ,fan motor fault protection, sensor fault protection, unit abnormal protection in cooling mode.
2.Dehumidify:(ΔT=Troom temp.-Tset temp.)
range of set temp.: default is 77
O
F and it can’t change.
The indoor blower fan is running at low speed for thirty seconds after air conditioner shutdown in dehumidify mode.
33 SERVICE MANUAL FOR AMERICA
The indoor blower fan is running at low speed and it can’t change.
Air conditioner haven’t turbo and economic function in dehumidify mode.
Flap position: flap at 85 degree position and it can’t change.
It require indoor unit to reduce power if indoor room temp. continuous less than or equal to 15 degree for 5 minutes, when room temp. is more than or equal to 17 degree, it add the power of indoor unit.
3.Heating(ΔT=Troom temp.-Tset temp.)
Range of set temp. 60
O
F~90
O
F;
Compressor running as below figure. compressor on
CONT 5 MIN
off
-7
O
F
-4
O
F
ΔT
It require outdoor unit to reduce power if indoor room temp. continuous more than set temp. for 5 minutes.
Indoor blower fan continuous running for 30 seconds at current speed after indoor unit reduce power.
Indoor blower fan can select one of four speed.
Fan speed is determined by the difference of room temp. and set temp. in auto wind.(but anti cold wind is prior) speed
high
middle low
0
O
F
4
O
F
6
O
F
9
O
F
ΔT
Anti cold wind:
When air conditioner first power on or change mode, indoor blower fan didn’t running. When the coil pipe temp. of indoor unit is more than 86
O
F,start turnning on indoor blower fan(lower speed).if the coil pipe temp. of indoor unit drop to less than or equal to 77
O
F,it shutdown indoor blower fan.
Heat wind control:
If coil pipe temp. of indoor unit is more than or equal to 90
O
F, indoor blower fan is running at set speed.
If coil pipe temp. of indoor unit is less than 90
O
F, indoor blower fan is running as below figure. speed
set speed
lower
turn off
77
O
F
86
O
F
90
O
F
coil pipe temp.
Note:①When Tp≤86
O
F,flap is open at 85°and is running at lower speed, when Tp
≥90
O
F, it is running at set speed and flap revert to prior state.
②If Tp≤77
O
F,turn off indoor blower fan.
Defrost control
Indoor blower fan turn off when it enter defrost.
Clear quantity of heat
34 SERVICE MANUAL FOR AMERICA
Turn off air conditioner in heating mode, if the coil pipe temp. of indoor unit is more than 104
O
F, indoor blower fan is running at low speed. If the coil pipe temp. of indoor unit is less than or equal to 104
O
F or turn off air conditioner over 2 minutes,
It shutdown indoor blower fan.
4. Auto mode
set temp. is 77
O
F and it can’t change;
Press emergency key in waiting state or select auto mode by remote, air conditioner enter auto mode and set temp. is 77
O
F.
Indoor blower fan is running for 20 seconds at lower speed after select auto mode, the running lamp is light, it select correspond running mode accord to room temp.: room temp. >79
O
F, select cooling mode. room temp. <70
O
F, select heating mode.
70
O
F≤room temp.≤79
O
F,select ventilation mode.
When the running mode has confirmed, it can’t change, if it reenter auto mode, it select running mode again accord to room temp..
When the mode of auto select is clash with other indoor unit running mode:
If it auto select is cooling mode and other indoor unit is running heating mode, then it select ventilation mode.
If it auto select is heating mode, but other indoor unit is running cooling mode, display error of mode clash.
if it select is ventilation mode, then it running is ventilation.
5.Ventilation
1) Range of set temp.:60
O
F -90
O
F.
2) Indoor blower fan is operate same as cooling mode.
3) Flap is operate same as cooling mode.
4) Indoor unit no power require in ventilation mode.
6. Timer and sleep
timer
Remote can set 1-24 hours timer on or timer off.
Air conditioner is running .
If set timer off, air conditioner is continuous running and display timer time, when timer time is end, it shutdown air conditioner.
air conditioner is shutdown .
If set timer on, air conditioner at waiting state, it display timer time. when timer time is end, it turn on air conditioner.
when it set timer , the timer lamp is light and display set temp.
sleep
If set sleep, the sleep lamp is light, set temp. and fan speed can be adjust.
Timer and sleep can set together, which time is end then perform this function.
7. Air flow control
Define:flap full open angle is 0°, and full close angle is 125°。
35 SERVICE MANUAL FOR AMERICA
Full open
Fixed
Full close
Power on, flap run to full close position.
Turn off air conditioner, flap run to full close position.
Turn on air conditioner, flap first run to full open position, then run to correspond position.
Fixed wind:
If turn on air conditioner and set fixed wind at first power on, flap first run to full open position then stop at 40°position.
If change to fixed wind from swing wind or natural wind, the flap stop at current position and store the position.
Swing wind:
Flap start position is 20°.
Flap is running between 20°and 85°.
Natural wind is swing two cycle and stop 15 seconds, flap is stop at current
8. Turbo function position at that moment.
Flap stop at 85°at anti cold wind or defrost procedure in heating mode.
Flap stop at 85°in first 20 seconds of auto mode.
Flap is drive by step motor.
Turbo is use in cooling /heating/ventilation mode, the indoor blower fan is running at super speed.
(1) enter condition: press turbo key of remote.
(2)end condition:
① running time more than or equal to 15 minutes.
② press turbo key of remote again.
(3) all restrict and protect condition are active in turbo running.
(4) return to prior state after end turbo running.
五、Protection
1. Prevent frost of indoor coil pipe (cooling and dehumidify mode)
When the temp. of middle coil pipe is less than or equal to 32
O
F, indoor blower fan is running at high speed, if the temp. less than or equal to 30
O
F for 5 minutes, it turn off compressor, when the temp. more than or equal to 45
O
F, it exit protection.
2. Overheat of indoor coil pipe(heating mode)
When the temp. of middle coil pipe more than or equal to 135
O
F, indoor blower fan is running at high speed, if the temp. more than or equal to 149
O
F , it turn off outdoor unit, when the temp. less than or equal to 129
O
F, it exit protection.
3. Indoor fan motor fault(only PG motor)
36 SERVICE MANUAL FOR AMERICA
If no feedback signal continuous 30 seconds during PG motor running, it turn off air conditioner and display fan motor error.
4. Communicate fault
If it can’t receive correct signals after air conditioner has run for 60 seconds, it turn off air conditioner and display communicate error.
5.Indoor sensor fault
When indoor sensor cut off or short, it shutdown air conditioner and display sensor error.
6. When outdoor unit is fault, indoor unit only display fault.
六、Other function
Emergency key
Press emergency key after power on, air conditioner select auto mode, auto fan speed, natural wind, it set temp. is 77
O
F. If press emergency key again, air conditioner is shutdown.
七、Sound indication
1. The buzzer will sound when air conditioner turn on , turn off, power on or receive remote signal.
八、Display
1.After turn on air conditioner, mode clash display d1 and timer lamp flash (light one second, extinguish one second), defrost display dF , the running lamp flash (light one second, extinguish one second)indicate anti cold wind ,when air conditioner is normal running , the running lamp is light.
2.Set timer or sleep , the yellow lamp is light.
3.Outdoor unit and indoor unit fault display:
Fault display of indoor unit: fault display
Communicate fault
Fan motor fault
Room temp. sensor fault
Temp. sensor of coil pipe outlet fault
F1
F4
F2
F3
F3
Temp. sensor of coil pipe entrance fault
Temp. sensor of coil pipe middle fault
Fault display of outdoor unit: fault
F3
Transducer module protection
Over current display
P2
P3
P4
Discharge temperature of compressor overheat, ambient temperature overheat
DC voltage of outdoor unit abnormal
Leakage or reverse valve fault
Outdoor sensor fault
Compressor drive fault
P7
P8
F6
FC
九、Test Model
37 SERVICE MANUAL FOR AMERICA
1、Cooling
Condition Entering Method label Capacity Pressing Tubro for 5 times+Setting temp.77
O
F
A2
B2
Pressing Tubro for 5 times+Setting temp.75
O
F
Pressing Tubro for 5 times+Setting temp.73
O
F
B1
F1
EV
Pressing Tubro for 5 times+Setting temp.71
O
F
Pressing Tubro for 5 times+Setting temp.69
O
F
Pressing Tubro for 5 times+Setting temp.67
O
F
A2:Indoor temp. 95 OF,Compressor max
B2:Indoor temp. 82 OF,Compressor max
B1:Indoor temp. 82 OF,Compressor min
F1:Indoor temp. 67 OF,Compressor min
EV:Indoor temp.87 OF,Compressor mid
2、Heating
Condition Entering Method label Capacity Pressing Tubro for 5 times+Setting temp.77
O
F
H01
H11
Pressing Tubro for 5 times+Setting temp.79
O
F
Pressing Tubro for 5 times+Setting temp.81
O
F
H12
H22
H32
H2V
Pressing Tubro for 5 times+Setting temp.83
O
F
Pressing Tubro for 5 times+Setting temp.85
O
F
Pressing Tubro for 5 times+Setting temp.87
O
F
Pressing Tubro for 5 times+Setting temp.89
O
F
H01:Indoor temp. 62
O
F,Compressor min
H11:Indoor temp. 47
O
F,Compressor min
H12:Indoor temp. 47
O
F,Compressor max
H22:Indoor temp. 35
O
F,Compressor max
H32:Indoor temp. 17
O
F,Compressor max
H2V:Indoor temp. 35
O
F,Compressor mid
Function of Dual DC Inverter Type
38 SERVICE MANUAL FOR AMERICA
一. System Frame Drawing
R everse Valve(Current in cooling condition )
Condenser of Outdoor Unit
Temperature of the Middle of Outdoor Coils
Temperature of Exhaust
Expansion Valve 1 Expansion Valve 2
Temperature of suction
M M
Compressor
Liquid Tank
T11 T12 T13
Evaporator 1 of Indoor Unit
Ambient Temperature of Indoor 1
Ambient Temperature of Outdoor T21 T22 T23
Evaporator 2 of Indoor Unit
Ambient Temperature of Indoor 2
Diagram 1
二.Major Performance Index a)
Voltage of Power Supply: AC220V ±15%; b)
Power of Controller: ≤15W; c)
Output of Three-phase Frequency Conversion:
Wire Voltage: 70V∽180V; Power: ≤5KW; Frequency: 10Hz∽120Hz; d) Precision of Temperature Control:±1℃; e) Applicable Environment:
Temperature:-20∽55℃,Relative Humidity: ≤90%RH (No dew); f) Conservation Environment:
Temperature:-25∽70℃,Relative Humidity: ≤95%RH (No dew); g) Executive Standard: GB/T7725-2004 & GB4706.32-2000.
三.Input & Output of Outdoor Controller
1. Outputs of one three-phase Frequency Conversion, two relays, one indicator led and one communication signal:
1) Controlling the three-phase output of compressor
2) Controlling the output of outdoor motor
3) Controlling the output of 4-way valve
4) Controlling the output of communication signals of indoor unit
5) Controlling the output of expansion valve
2. Inputs of five analogue inputs (the temperature measuring points distributing as Diagram 1, all the analogues go through digital filter for disposal), and two switch signals and two communication signals: a) Signal input of outdoor ambient temperature b) Signal input of median temperature of outdoor coil c) Signal input of discharge temperature of compressor d) Signal input of suction temperature of compressor e) Signal input of power supply voltage f) over-heat protection signal of compressor g) communication signal of indoor unit 1 h) communication signal of indoor unit 2 i) protection signal of outdoor IPM module
四. Operation in Cooling Mode
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Control of Expansion Valve in Cooling Mode
1. Reset of Expansion Valve
In the first time ,the expansion valves in all channels shall be shut down 600 steps, then the expansion valve corresponding to the indoor unit in normal communications with the outdoor unit shall be opened to standby mode steps. If accomplished, the outdoor unit shall be on standby mode, until the turn-on the indoor unit.
2. Adjustment of Expansion Valve
1) Setting of Basic Step
After the confirmation of the turn-on order of cooling mode, the expansion valve of the relevant indoor unit shall be set to the basic step and the other to zero step.
2) Adjustment of Expansion Valve according to the difference in temperature between the inlet and outlet of evaporator
During the first ten minutes of cooling mode, the expansion valve of the indoor unit at the request of cooling shall be set to the basic step. Ten minutes later, the expansion valve step and its adjust cycle shall be adjusted according to the difference in temperature between the inlet and outlet of evaporator.
Control of compressor’s frequency:
1.Range of compressor’s frequency:Fmin~Fmax (Fmin:the lowest frequency, Fmax:the highest frequency)
2.Frequency decrease protection of compressor: frequency decrease protection is prior during frequency adjustment of compressor (Frequency decrease protection have: high temperature of compressor discharge, high temperature of outdoor coil pipe, high temperature of indoor coil pipe, low temperature of compressor suction, over current)
Control of fan motor in cooling mode:
1.The fan motor of outdoor unit is ahead run 20 seconds before compressor turn on.;
2.After compressor turn off, the fan motor of outdoor unit delay 30 seconds.
3. The fan motor speed of outdoor unit as below table in normal running, it has 20 seconds delay after speed change.
Speed table of outdoor fan motor
indoor unit capacity outdoor ambient
<2hp
≥
2hp
≥
3hp
T<66
O
F
66
O
F≤T<81
O
F low middle high
T≥81
O
F middle high high
compressor
40 SERVICE MANUAL FOR AMERICA
outdoor FM
20s 30s 30s figure 3
五
.Operation in Dehumidify Mode
Dehumidify mode is same as cooling mode.
六
.Operation in heating Mode
Adjustment of Expansion Valve:
1.Reset of Expansion Valve
In the first time,the expansion valves in two channels shall be shut down 600 steps, then the expansion valve corresponding to the indoor unit in normal communications with the outdoor unit shall be opened to standby mode steps. If accomplished, the outdoor unit shall be on standby mode, until the turn-on the indoor unit.
2.Adjustment of Expansion Valve
1) Setting of Basic Step
After the confirmation of the turn-on order in heating mode, the expansion valve of the relevant indoor unit shall be set to the basic step.
2) Adjustment of Expansion Valve according to the difference in temperature between the inlet and outlet of evaporator
During the first ten minutes of heating mode, the expansion valve of the indoor unit shall be set to the basic step and can’t adjust. Ten minutes later, the expansion valve step and its adjust cycle shall be adjusted according to the difference in temperature between the inlet and outlet of evaporator.
Control of compressor’s frequency
Range of compressor’s frequency:Fmin~Fmax (Fmin:the lowest frequency, Fmax:the highest frequency)
Control of fan motor in heating mode:(figure 5)
1. The fan motor of outdoor unit is ahead run 20 seconds before compressor turn on.
2. After compressor turn off, the fan motor of outdoor unit delay 30 seconds.
3. The fan motor speed of outdoor unit as below table in normal running, it has 20 seconds delay after speed change.
4. The control of outdoor fan motor as figure 6 during defrost process.
Speed table of outdoor fan motor
indoor unit capacity outdoor ambient
<2hp ≥2hp ≥3hp
T≥68
O
F low
54
O
F≤T<68
O
F low middle high
T<54
O
F middle high high
Control of reverse valve(figure 5)
1. The reverse valve is ahead run 20 seconds before compressor turn on.
2. After compressor turn off, the reverse valve delay 60 seconds shutdown.
3. The control of reverse valve as figure 6 during defrost process.
compressor
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outdoor FM
reverse valve
20s 30s 30s figure 5
七.Defrost of heating mode(figure 6)
1. Defrost start condition
If outdoor ambient is more than or equal to 61
O
F,it can’t defrost. When the time of defrost interval is end , outdoor coil pipe temp. and outdoor ambient temp. continuous meet all conditions for 5 minutes, it enter defrost process:
1) If outdoor ambient temp. less than or equal to 32
O
F,when T
盘
≤0.8T
环
+a
O
F(a is a adjust constant), it enter defrost process.
2) If outdoor ambient temp. more than 32
O
F and less than or equal to 59
O
F,when T
盘
≤ 0.2 T
环
+a
O
F, it enter defrost process.
3) If outdoor temp. sensor is failure, when outdoor coil temp. T
盘
≤+a
O
F, it enter defrost process.
4) If coil temp. sensor of outdoor unit is failure, when defrost interval time is end, it enter defrost, the time of defrost is four minutes.
5) During the first ten minutes of outdoor running in heating mode, the time is clear and it judge whether outdoor coil pipe temp. and outdoor ambient temp. satisfy defrost condition, if the frequency of compressor is 25HZ and satisfy defrost condition, then if enter defrost process. After end defrost process or over 10 minutes it return normal running.
2. Defrost end condition
1) T
盘
≥b
O
F(b is a adjust constant)or defrost time more than or equal to c minutes
(c is a adjust constant),it exit defrost process.
2) When outdoor coil pipe sensor is failure, defrost time is four minutes, it exit defrost process after four minutes.
3.
Interval time of defrost
1) Defrost interval time restriction: Max 120 minutes, Min 25 minutes.
2) The first frost interval time is 0 minute after heating.
3) The second defrost interval time is base on 60 minutes, it adjust according to below table.
4) Form second time, defrost interval time adjustment as below table.
Interval time(Td) change
Td <2 minutes Last interval time add 5 minutes
Same as last interval time 3 minutes≥Td≥2 minutes
≥4 minutes Last interval time reduce 5 minutes
4. Time sequence of defrost process(figure 6).
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八.Control of oil return circle
1. Oil return circle period
When air conditioner has run for 10 minutes or accumulate time T msro is end, it execute oil return circle once.
2. When compressor is running to oil return circle, the indoor unit which have communication is return oil, expand valve is open fully and compressor’s frequency increase more than 3/5 of max frequency for 90 seconds, the expand valve of indoor unit which no communication is close.
九. Operation mode control of outdoor unit(dehumidify、cooling or heating)
The indoor unit can require cooling mode and dehumidify mode together, but it can’t require cooling mode or dehumidify with heating mode together, the outdoor unit operate state is decided by the indoor unit which is applied first.
十.Protect function:
1. Delay protection of compressor
The compressor can’t run after it stop within 3 minutes.
2. Fault protection of module
The air conditioner stop running immediately and display error code if the module is fault.
3. Protection of communicate fault
The control of outdoor unit can connect with all indoor units, when it power on, it sent data to each indoor unit continuously, if it receive a correct data from correspond indoor unit, then the indoor unit is exist. when the control of outdoor unit didn’t receive communication data from indoor unit which is exist within 30 seconds, it will display communication fault. If all communication channels are failure, air conditioner will shutdown and display fault code.
43 SERVICE MANUAL FOR AMERICA
4. Leakage or reverse valve fault
The air conditioner shutdown immediately when meet one of below conditions.
1)
Heating: coil pipe temp. of outdoor unit can’t decrease 3 degree within setting time and coil pipe temp. of indoor unit can’t increase 3 degree all along.
2) Cooling: coil pipe temp. of outdoor unit can’t increase 3 degree within setting time and coil pipe temp. of indoor unit can’t decrease 3 degree all along.
5. High temp. protection of compressor discharge
1) The protection don’t effect if the temp. sensor of compressor discharge fault.
2) The air conditioner stop running immediately and display error code when the temp. of compressor discharge more than Tsd.
3) The compressor decrease frequency until the temp. of compressor discharge less than 210
O
F if the temp. of compressor discharge more than 203
O
F. The compressor resume normal frequency when the temp. of compressor discharge less than 194
O
F.
6. Temperature switch protection of compressor
The air conditioner will shutdown immediately and display fault code if the temp. switch of compressor switch off.
7. High temp. protection of middle coil pipe of condenser
1) The protection don’t effect if the temp. sensor of middle coil pipe fault.
2)
The compressor decrease frequency until the temp. of middle coil pipe less than
136
O
F.if the temp. of middle coil pipe more than 134
O
F..
3)
It resume normal frequency when the temp. of middle coil pipe less than133 O
F..
8. High temp. protection of indoor coil pipe
1)
The compressor decrease frequency until the temp. of indoor coil pipe more than
(Tsce-2) if the temp. of indoor coil pipe less than (Tsce-2)in cooling mode.
The compressor decrease frequency until the temp. of indoor coil pipe less than
(Tsce+2) if the temp. of indoor coil pipe more than (Tsce+2) in heating mode.
2)
It resume normal frequency when the temp. of indoor coil pipe less than Tsce(cooling mode) or less than Tshe(heating mode).
9. Low temp. protection of compressor suction
1)
The protection don’t effect if the temp. sensor of compressor suction fault or compressor don’t run or in heating mode..
2)
The compressor decrease frequency until the temp. of compress suction more than
Tss if the temp. of compressor suction less than Tss. It resume normal frequency when the temp. of compressor suction more than (Tss+2).
10. Fault protection of outdoor sensor
The air conditioner is running at the frequency of less than (3/5)*Fmax and display fault code if the temp. sensor of compressor discharge fault, or the temp. sensor of outdoor middle coil pipe fault, or the temp. sensor of compressor suction fault, or the temp. sensor of outdoor ambient fault.
11. High temp. of ambient
1) The protection don’t effect if the temp. sensor of outdoor ambient fault.
2) The air conditioner stop running immediately and display error code if outdoor ambient temp. more than 131
O
F or less than -4
O
F.
12. Over current protection of compressor
44 SERVICE MANUAL FOR AMERICA
1)
The air conditioner stop running immediately and display error code when input current more than or equal to Imax.
2) The compressor decrease 2Hz per 3 seconds until input current less than or equal to (Imax-13) when the input current more than (Imax-13).
2)The compressor decrease 1Hz per 3 seconds until input current less than or equal to (Imax-16) when the input current more than (Imax-16).
3)
It resume normal frequency when the input current less than or equal to (Imax-20).
13.DC voltage of wire protection
1)
The air conditioner stop running and display DC voltage abnormal when it less than
260V.
2)The compressor decrease frequency and display FA6 when DC voltage less than 285V.
3) The air conditioner resume normal running when DC voltage more than 290V.
十一、Outdoor unit fault of indoor unit display fault display
Transducer module protection
Over current
P2
P3
P4
Discharge temperature of compressor overheat, ambient temperature overheat
DC voltage of outdoor unit abnormal
Leakage or reverse valve fault
Outdoor sensor fault
Compressor drive fault
P7
P8
F6
FC
45 SERVICE MANUAL FOR AMERICA
12. TROUBLESHOOTING
WARNING!!!
When Power Up – the whole outdoor unit controller, including the wiring, is under HIGH
VOLTAGE!!!
Never open the Outdoor unit before turning off the Power!!!
When turned off, the system is still charged (400V)!!!
It takes about 3 Min. to discharge the system.
Touching the controller before discharging may cause an electrical shock!!!
For safe handling of the controller please refer to section 1.6 below.
1.1 Air Conditioner Failures and Corrective Actions
F1:
1,Communicate wire cut off ,loose or wrong wiring---check wires
2,Communication interfere---check wires connection with circuit diagram.(earth line must be wired)。
F2:
1,Temp. sensor of indoor room short or cut off.---change sensor
F3:
1,Temp. sensor of indoor coil pipe outlet short or cut off.---change sensor.
2,Temp. sensor of indoor coil pipe entrance short or cut off.---change sensor.
3,Temp. sensor of indoor coil pipe middle short or cut off.---change sensor.
F4:
1,PG motor fault.---change motor. PG.
2,Fixed screw loose.---fix cross flow fan.
3,Communication interfere. (earth wire can’t with communicate wire in same cable)---check cable.
F6:
1,Temp. sensor of discharge short or cut off.---change sensor.
2,Temp. sensor of suction short or cut off.---change sensor.
3,Temp. sensor of condenser middle short or cut off.---change sensor.
P2:(auto-restart)
1,over current protection of inverter module.
2,over voltage protection of inverter module.
3,high temp. protection of inverter module.
P3:
1,over load (outdoor ambient temp. more high).
2,Voltage over low.
46 SERVICE MANUAL FOR AMERICA
P4:
1: discharge temp. too high.---maybe leak refrigerant, add refrigerant.
2:outdoor ambient temp. too high, if (T<-4
O
F,T>131
O
F), it will alarm.
3:temp. switch of compressor cut off.。
4:Communication interfere. (earth wire can’t with communicate wire in same cable)---check cable.
P7:
1,PFC board fault.---change PFC board.
2,Communication of main board and PFC board fault.---check wires of main board and PFC board.
P8:
1,Less refrigerant.---add refrigerant.
2,Coil pipe sensor can’t contact with coil pipe.
3,4-way valve fault.---change 4-way vavle fault.
47 SERVICE MANUAL FOR AMERICA
1 3 . E X P L O D E D V I E W S A N D S P A R E P A R T S L I S T S
13.1 outdoor unit : TAS-09EH/O
NO. description
1 前网罩
2 面 板
3 轴流风轮
4 电 机
5 电机支架
6 冷凝器
7 顶盖板
8 电控盒
9 背网
10 右侧板 name
Front Grill
Front Plate
Axial flow fan
Motor
Motor support
Condenser
Top panel
Electric box
Rear Grill
Right panel number NO.
description
1
1
1
1
1
1
1
1
1
1 name
11 电器盒盖
12 阀座板
13 低压阀
14 高压阀
Top of the Electric box
Valve installation plate
Low-pressure valve
Ligh-pressure valve
15 毛细管组件 Capillary Assy
16 电子膨胀阀 Electronic expansion valve
17 四通阀组件 Four-way valve assembly
18 压缩机 Compressor
19 中隔板
20 底盘
Partition board
Base number
1
1
1
1
1
1
1
1
1
1
48 SERVICE MANUAL FOR AMERICA
13.2 outdoor unit : TAS-12EH/O
NO. description name
1 顶盖板
2 电控盒
3 背网
4 中隔板
Top panel
Electric box
Rear Grill
Partition board
5 四通阀 Four-way valve
6 电子膨胀阀 Electronic expansion valve
7 干燥过滤器 Desiccation filter
8 右侧板 Right panel
9 大抽手
10 阀座板
11 低压阀
Large handle
Valve installation plate
Low-pressure valve number NO.
description
1
1
1
1
1
1
1
1
1
1
1
12 高压阀
13 压缩机
14 底盘
15 冷凝器
16 电机支架
17 电机
18 轴流风机
19 前网罩
20 前面板
21 左护网
22 左侧板 name
High-pressure valve
Compressor
Base
Condenser
Motor support
Motor
Axial flow fan
Front Grill
Front Plate
Left protect net
Left panel
49 SERVICE MANUAL FOR AMERICA number
1
1
1
1
1
1
1
1
1
1
1
13.3 outdoor unit : TAS-18EH/O
NO. NO.
description
1
2
3
前网罩
面 板
Front Grill
Front Plate
轴流风轮 Axial flow fan
4 电 机
5 左侧板
Motor
6 电机支架 Motor support
7 冷凝器
8 顶盖板
9 电器盒
10 背网
Left panel
Condenser
Top panel
Electric box
Rear Grill
1
1
1
1
1
1
1
1
1
1 name number
11
12
四通阀组
件
电子膨胀
阀
13 右侧板
Four-way valve assembly
Electronic expansion valve
Right panel
14 电器盒盖 Top of the Electric Box
15 阀座板 Valve installation plate
16 低压阀 Low-pressure valve
1
1
1
1
1
1
17 高压阀
18 维修板
19 压缩机
20 中隔板
21 底盘
High-pressure valve
Maintenance plate
Compressor
Partition board
Base
1
1
1
1
1
50 SERVICE MANUAL FOR AMERICA
13.4 outdoor unit : TAS-24EH/O
NO. description name
1 顶盖板
2 减振块
3 中隔板
4 电控盒
5 四通阀
Top panel
Anti-vibration pad
Partition board
Electric box
Four-way valve
6 干燥过滤器 Desiccation filter 1
7 电子膨胀阀 Electronic expansion valve 1
8 右侧板 Right panel
9 电器盒盖 Top of the Electric box
1
1
10 阀座板
11 低压阀
12 高压阀
Valve installation plate
Low-pressure valve
High-pressure valve
1
1
1
1
1
1
1
1 number NO.
description name
13 维修板
14 小抽手
15 压缩机
16 底盘
17 冷凝器
Maintenance plate
Small handle
Compressor
Base
Condenser
18 电机支架 Motor support
19 电机 Motor
20 轴流风机 Axial flow fan
21 前网罩 Front Grill
22 前面板
23 左护网
24 左侧板
Front Plate
Left protect net
Left panel number
1
1
1
1
1
1
1
1
2
1
1
1
51 SERVICE MANUAL FOR AMERICA
13.5 outdoor unit : TAS-18MVH/O
NO. description
1 前网罩
2 面 板
3 轴流风轮
4 左侧板
5 电机支架
6 冷凝器
7 顶盖板
8 电器盒
9 背网
10 汽液分离器
11 四通阀组件 name
Front Grill
Front Plate
Axial flow fan
Left panel
Motor support
Condenser
Top panel
Electric box
Rear Grill
Steam liquid segregator
Four-way valve assembly
Electronic expansion valve
Right panel
12 电子膨胀阀
13 右侧板 number NO.
1
1
1
1
1
1
1
1
1
1 description name
14 电器盒盖
15 阀座板
Top of the Electric Box
Valve installation plate
16 A 机 DN4 截止阀 DN4 valve
17 A 机 DN10 截止阀 DN10 valve
18 B 机 DN4 截止阀 DN4 valve
19 B 机 DN10 截止阀 DN10 valve
20 维修板
21 干燥过滤器
22 压缩机
Maintenance plate
Desiccation filter
Compressor
23 中隔板 Partition board
1
2
1
24 底盘
25 电 机
Base
Motor
52 SERVICE MANUAL FOR AMERICA number
1
1
1
1
1
1
1
1
1
1
1
1
13.6 outdoor unit : TAS-24MVH/O
NO. description name
1 前网罩 Front Grill
2 面 板 Front Plate
3 轴流风轮 Axial flow fan
4 左护网 Left protect net
5 电机支架 Motor support
6 立 柱
7 顶盖板
8 冷凝器
Pillar
Top panel
Condenser
9 中隔板
10 电器盒
Partition board
Electric box
11 四通阀组件 Four-way valve assembly
12 电子膨胀阀 Electronic expansion valve
13 右侧板 Right panel number NO. description
1
1
1
1
1
1
1
1
1
1
1
2
1
14
15 阀座板
21
22
23
24
25
26
电器盒盖 name
16 A 机 DN4 截止阀 DN4 valve
17 A 机 DN10 截止阀 DN10 valve
18 B 机 DN4 截止阀 DN4 valve
19 B 机 DN10 截止阀 DN10 valve
20 维修板
小抽手
干燥过滤器
压缩机
油汽分离器
底盘
电 机
Top of the Electric Box
Valve installation plate
Maintenance plate
Small handle
Desiccation filter
Compressor
Oil and steam separator
Base
Motor number
1
1
1
1
2
1
1
1
1
1
1
1
1
53 SERVICE MANUAL FOR AMERICA
APPENDIX A
APPENDIX A
INSTALLATION AND OPERATION MANUAL
I N S T A L L A T I O N M A N U A L C M V
54 SERVICE MANUAL FOR AMERICA
F o r e w o r d
This instruction Manual is the universal-purpose version for the models of separate wall-mounted air conditioners manufactured by our Co. The appearance of the units that you purchase might be slightly d i f f e r e n t from the ones described in the Manual, but it does not affect your proper operations and usage.
Please read carefully the sections corresponding to the specific model you choose, and keep the
Manual properly so as to facilitate your reference at later time.
I M P O R T A N T !
P l e a s e R e a d B e f o r e S t a r t i n g
This air conditioning system meets strict safety and operating standards.
As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.
For safe installation and trouble-free operation, you must:
Carefully read this instruction booklet before beginning.
Follow each installation or repair step exactly as shown.
Observe all local, state, and national electrical codes.
Pay close attention to all danger, warning, and caution notices given in this manual. WARNING:
This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.
CAUTION: This symbol refers to a hazard or unsafe practice which can result in personal injury and the potential for product or property damage.
CONTENTS
LOCATION OF OUTDOOR UNIT
ELECTRICAL CONNECTION BETWEEN INDOOR AND OUTDOOR UNIT
INSTALLATION/SERVICE TOOLS (ONLY FOR R410A PRODUCT)
REFRIGERANT TUBING
FINAL TASKS
NOTE: This manual is for Multi split applications only.
For indoor units installation please refer to the installation manual supplied
1
3
7
9
11
55 SERVICE MANUAL FOR AMERICA
within the indoor unit packa
1 LOCATION OF OUTDOOR UNIT
Select the location considering the following:
O U T D O O R U N I T
1 .The location must allow easy servicing and provide good air circulation as shown in fig2. 2.The unit may be suspended from a wall by a bracked(Optional)or located in a free standing position on the floor(preferably slightly elevated).
3.If the unit is suspended , ensure that the bracket is firmly connected and the wall is strong enough to withstand vibrations.
4.Unit location should not disturb neighbours with noise or exhaust air stream.
5.Place the mounting pads under the unit legs.
6.Refer to figure 2 for allowed installation distances.
Fig 2
Fig 1 Fig 2
56 SERVICE MANUAL FOR AMERICA
2 ELECTRICAL CONNECTION BETWEEN
OUTDOOR AND INDOOR UNIT
ELECTRICAL REQUIREMENTS
Electrical wiring and connections should be made by qualified electricians and in accordance with local electrical codes and regulation.The air conditioner units must be grounded. The air conditioner units must be connected to an adequate power outlet from a separate branch circuit protected by a time delay circuit breaker,as specified on unit's nameplate. Voltage should not vary beyond ± 10% of the rated voltage.
1 .Remove the power supply cable that is connected to the indoor unit!
2.To connect the indoor units to the outdoor units,use the following electrical cables.
Electrical connections:
Power input cable: 1 group 3 wiresX2.5mm
2
cable between indoor and outdoor units: 1 group 4 wiresX 1.0mm
2 see Fig 6.7.8.9.10 for detail .
3.Prepare the cable ends for the power input and for the cables between outdoor and indoor units as shown in figure 3a and 3b respectively.
4.Connect the cable ends to the terminals of the indoor and outdoor units , as show in fig4, figs.
Please select corresponding connection according to the different indoor units. 5.Secure the multiple wire power cable with the cable clamps.
•Power input cable
57 SERVICE MANUAL FOR AMERICA
3 INSTALLATION/SERVICE TOOLS
(ONLY FOR R410A PRODUCT)
C A U T I O N
New Refrigerant
Air Conditioner Installation
This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy ozone layer.
R410A refrigerant is approx . 1.6 times of refigerant R22. Accompanied with the adoption of the new refrigerant , the refrigeration machine oil has also been changed.
Therefore,during installation work, be sure that water , dust , former refrigerant , or refrigeration machine oil does not enter into the new type refrigerant R410A air conditioner circuit.The system must not be left open to the atmosphere for any reason for any period of time as the systems oil quickly absorbs moisture and will contaminate and damage the system.
A refrigerant liquid line drier is recommended.
To prevent mixing of refrigerant or refrigerating machine oil ,the sizes of conneting sections of charging port on main unit and installation tools are different from those used for the conventional refrigerant units. Accordingly,special tools are required for the new refrigerant (R410A) units, For connecting pipes use new and clean piping materials with high pressure fitting made for R410A only, so that water and/or dust does not enter.Moreover, do not use the existing piping because there are some problems w i t h presure f i t t i n g s and possible i m p ur i t ie s in exi stin g piping .
Changes in the product and components
In air conditioners using R410A ,in order to prevent any other refrigerant from being accedentally charged .the service port diameter size of the outdoor unit control valve (3 way valve) has been changed. (1/2 UFN 20 threads per inch)
• In order to increase the pressure resisting strength of the refrigerant piping ,flare processing diameter and opposing flare nuts sizes have been changed.( fot copper pipes with nomensions 1/2 and 5/8)
New tools for R410A
Nes tools for R410A Applicable to R22 model
Gauge manifold
Charge hose x x
Chages
As the working pressure is high ,it is impossible to measure the working pressure using conventional gauges . In order to prevent any other refrigerant from being charged , the port diameters have been changed.
In order to increase pessure resisting strength.
hose materials and port sizes have been changed( to 1 /2 UNF 20 threads per inch).
When puchasing a charge hose,be sure to confirm the port size.
Electronic balance for refrigerant charging
Torque wrench
(nominal dia.1/2,5/8) x
As working pressure is. high and gasification speed is fat ,it is difficult to read the indicated value by means of charging cylinder ,as air bubbles occur.
The size of opposing flare nuts have been increased ,incidentally,a common wrench is used for nominal diameters 1/4 and 3/8.
58 SERVICE MANUAL FOR AMERICA
Flare tool
(clutch type)
Gauge for projection adjustment
0
_
Vacuum pump adapter 0
By incressing the clamp bar'receiving hole size , strength of spring in the tool has been improved.
Used when flare is made by using conventional flare tool.
Connected to conventional vacuum pump,it is necessary to use an adapter to prevent vacuum pump oil from flowing back into the charge hose ,
The charge hose connecting part has two ports-one for conventional refrigerant (7/16
UNF 20 theads per inch )and one for R41 OA ,if
Gas leakage detector x Exclusive for HFC refrigerant
•Incidentally,the "refrigerant cylinder"comes w i t h the refrigerant designation(R410A)and protector coating in the U.S's ARI specified rose color (Ari color code; PMS 507).
•Also the "charge port and packing for refrigerant cylinder"requires 1/2 UNF 20 theads per inch corresponding to the charge pOse's port size.
59 SERVICE MANUAL FOR AMERICA
4 REFRIGERANT TUBING
CONNECT THE INDOOR TO THE OUTDOOR UNIT
The indoor unit contains a small quantity of nitrogen.Do not unscrew the nuts from the unit until you are ready to connect the tubing.The outdoor unit is supplied with suffcient refrigerant charge(R410A). Refer to outdoor unit nameplate.
To prevent crushing,bend tubes using a bending tool.
NOTE:Use refrigeration R410Atype copper tubing only.
1.Open the valve cover.
2.Use tubing diameter that corresponds to the tubing diameter of the indoor and outdoor units. Note that the liquid and suction tubes have different diameters.(See tube size,torque tightening table.)
3.Place flares nuts on tube ends before preparing them with a flaring tool.Use the flare nuts that are mounted on the supplied outdoor and indoor units.
4.Connect the all ends of the tubing to the indoor and outdoor units.Notice the sign . All ends should correspond one by one.
5.Insulate each tube separately,and their unions,with at least 6mm thick of insulation .Wrap the refrigerant tubing,drain hose and electric cables together with a vinyl tape (UV protected)
Fig 11
1.INDOOR UNIT
2.Liquid tube(small dia.)
3.Suction tube(large dia.)
4. Plugs
5.Flare nuts
6.Tubing between units
7.Suction tube
8.Liquid tube
9.OUTDOOR UNIT
10.FIare nuts
11 .Suction valve(larger) 12.Liquid valve(smal)
NOTE:1.For unit use connectionsA,B and D
2.For large indoor unit of 5.0KW Use the lower connection(unit D) and use the
3/8"-1/2"transition( supplied)
3.The electric control channel must match the tube channel.
Caution!
When unscrewing the valve caps, do not stand in front of them or the spindles at any time,as the system is under pressure.
60 SERVICE MANUAL FOR AMERICA
Tightening torques of unions and valve caops:
TUBE SIZE
Liquid line 1/4"
Suction line 3/8"
Suction line 1/2"
Suction line 5/8"
TORQUE
1 5 - 2 0 N.M.
3 0 - 3 5 N.M.
5 0 - 5 4 N.M.
7 5 - 7 8 N.M.
Fig 13
To prevent refrigerant
leakage,coat
the flared surface with
refrigeration
oil
Fig 14 1.Suction
valve 2.Service port
3.Liquid val ve
EVACUATION OF THE REFRIGERATION TUBES AND THE INDOOR UNIT
After connecting the unions of the indoor and outdoor units,evacuate the air from the tubes and indoor unit as follows:
1.Connect the charging hoses with a push pin to the low and high sides of the charging set and the service ports of the suction and liquid valves.
Be sure to connect the end of the charging hose with the push pin to the service ports.
2.Connect the center hose of the charging set to a vacuum pump.
3.Open Fully the low and high pressure sides of the manifold gauge valves.
4.Turn on the vacuum pump.Perform evacuating for at least 30 minutes and than confirm that the needle in the gauge moves from 0 MPa(Ocm Hg) t 0 - 0 . 1 MPa(-76cm Hg).
5.Close the valves of the low and high sides of the charging set and turn off the vacuum pump. After few mi n ut e s,if the gauge needle has moved,there is a leak which must be found and repaired before moving to the next stage.
6.Disconnect the charging hose from the vacuum pump and from the service ports of the suction and liquid valves.
7.Tighten the service port caps of suction and liquid valves.
8.Remove the valve caps from all valves,and open them using a hexagonal Allen wrench,
9.Securely tighten the caps onto all of the valves.
10.Check for gas leaks from all the connecting position.Test wit h electronic leak detector or with a sponge immersed in soapy water for bubbles.
61 SERVICE MANUAL FOR AMERICA
1 .Charging set
2.Vacuum pump
3.OUTDOOR UNIT
4.Service valve
5.Cap
6.Suction valve
7.Service valve
8.Cap
9.Liquid valve
10.INDOOR UNIT
1 1.Suction flare connection
12.Liquid flare connection
5 FINAL TASKS
1 .Check all valve caps and ensure that they had tightened properly.Close the valve cover.
2.Fill gaps on the wall between hole sides and tubing with sealer.
3.Attach wiring and tubing to the wall with clamps where necessary.
4.Operate the unit for no less than 5 minutes at heating or cooling mode.
5.Explain filter removal,cleaning and installation.
6.Operate the air conditioner together with the customer and explain all functions.
7.Give the operating and installation manuals to the customer
62 SERVICE MANUAL FOR AMERICA
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