Trane TVR Pro CO Series User manual

Service Manual
TVR Pro CO Series
Commercial Air Conditioners
R410A
4TVY0077H8000AA
4TVY0096H8000AA
4TVY0115H8000AA
4TVY0140H8000AA
4TVY0155H8000AA
4TVY0170H8000AA
4TVY0192H8000AA
4TVY0210H8000AA
4TVY0229H8000AA
4TVY0249H8000AA
4TVY0268H8000AA
4TVY0290H8000AA

1
CONTENTS
Part 1 General Information............................................................................ 3
Part 2 Component Layout and Refrigerant Circuits ................................... 12
Part 3 Control ............................................................................................... 23
Part 4 Field Settings..................................................................................... 33
Part 5 Electrical Components and Wiring Diagrams .................................. 38
Part 6 Diagnosis and Troubleshooting......................................................... 54

2

3
Part 1
General Information
1Indoor and Outdoor Unit Capacities ......................................................4
2External Appearance..............................................................................6
3Outdoor Unit Combinations...................................................................8
4Combination Ratio...............................................................................10

4
1Indoor and Outdoor Unit Capacities
1.1 Indoor Units
1.1.1 Standard indoor units
Table 1-1.1: Standard indoor unit abbreviation codes
Abbreviation
code
Type
Abbreviation
code
Type
Q1
One-way Cassette
T1
High Static Pressure Duct
Q2
Two-way Cassette
G
Wall-mounted
Q4C
Compact Four-way Cassette
DL
Ceiling & Floor
Q4
Four-way Cassette
F
Floor Standing
T2
Medium Static Pressure Duct
Table 1-1.2: Standard indoor unit capacity range
Capacity
Capacity
index
Q1
Q2
Q4C
Q4
T2
T1
G
DL
F
kW
HP
1.8
0.6
18
18
—
—
—
—
—
—
—
—
2.2
0.8
22
22
22
22
—
22
—
22
—
22
2.8
1
28
28
28
28
28
28
—
28
—
28
3.6
1.25
36
36
36
36
36
36
—
36
36
36
4.5
1.6
45
45
45
45
45
45
—
45
45
45
5.6
2
56
56
56
—
56
56
—
56
56
56
7.1
2.5
71
71
71
—
71
71
71
71
71
71
8.0
3
80
—
—
—
80
80
80
80
80
80
9.0
3.2
90
—
—
—
90
90
90
90
90
—
10.0
3.6
100
—
—
—
100
—
—
—
—
—
11.2
4
112
—
—
—
112
112
112
—
112
—
14.0
5
140
—
—
—
140
140
140
—
140
—
16.0
6
160
—
—
—
—
—
160
—
160
—
20.0
7
200
—
—
—
—
—
200
—
—
—
25.0
9
250
—
—
—
—
—
250
—
—
—
28.0
10
280
—
—
—
—
—
280
—
—
—
40.0
14
400
—
—
—
—
—
400
—
—
—
45.0
16
450
—
—
—
—
—
450
—
—
—
56.0
20
560
—
—
—
—
—
560
—
—
—
1.1.2 Fresh air processing unit
Table 1-1.3: Fresh air processing unit capacity range
Capacity
12.5kW
14kW
20kW
25kW
28kW
45kw
56kw
Capacity index
125
140
200
250
280
450
560
1.2 Heat recovery ventilator
Table 1-1.4: Heat recovery ventilator capacity range
Capacity
200m3/h
300m3/h
400m3/h
500m3/h
800m3/h
1000m3/h
1500m3/h
2000m3/h

5
1.3 Outdoor Units
Table 1-1.5: Outdoor unit capacity range
Capacity
Model Name
Combination Type
8HP
4TVY0077H8000AA
/
10HP
4TVY0096H8000AA
/
12HP
4TVY0115H8000AA
/
14HP
4TVY0140H8000AA
/
16HP
4TVY0155H8000AA
/
18HP
4TVY0170H8000AA
/
20HP
4TVY0192H8000AA
/
22HP
4TVY0210H8000AA
/
24HP
4TVY0229H8000AA
/
26HP
4TVY0249H8000AA
/
28HP
4TVY0268H8000AA
/
30HP
4TVY0290H8000AA
/
32HP
4TVY0310H8000AA
16HP+16HP
34HP
4TVY0325H8000AA
22HP+12HP
36HP
4TVY0347H8000AA
20HP+16HP
38HP
4TVY0365H8000AA
22HP+16HP
40HP
4TVY0384H8000AA
24HP+16HP
42HP
4TVY0404H8000AA
26HP+16HP
44HP
4TVY0423H8000AA
28HP+16HP
46HP
4TVY0445H8000AA
30HP+16HP
48HP
4TVY0459H8000AA
26HP+22HP
50HP
4TVY0478H8000AA
28HP+22HP
52HP
4TVY0500H8000AA
30HP+22HP
54HP
4TVY0517H8000AA
28HP+26HP
56HP
4TVY0536H8000AA
28HP+28HP
58HP
4TVY0558H8000AA
30HP+28HP
60HP
4TVY0580H8000AA
30HP+30HP
62HP
4TVY0600H8000AA
30HP+16HP+16HP
64HP
4TVY0614H8000AA
26HP+22HP+16HP
66HP
4TVY0633H8000AA
28HP+22HP+16HP
68HP
4TVY0655H8000AA
30HP+22HP+16HP
70HP
4TVY0672H8000AA
28HP+26HP+16HP
72HP
4TVY0691H8000AA
28HP+28HP+16HP
74HP
4TVY0713H8000AA
30HP+28HP+16HP
76HP
4TVY0735H8000AA
30HP+30HP+16HP
78HP
4TVY0746H8000AA
28HP+28HP+22HP
80HP
4TVY0768H8000AA
30HP+28HP+22HP
82HP
4TVY0790H8000AA
30HP+30HP+22HP
84HP
4TVY0804H8000AA
28HP+28HP+28HP
86HP
4TVY0826H8000AA
30HP+28HP+28HP
88HP
4TVY0848H8000AA
30HP+30HP+28HP
90HP
4TVY0870H8000AA
30HP+30HP+30HP
Notes:
1. The combinations of units shown in the table are factory-recommended. Other combinations of units are also possible.

6
2External Appearance
2.1 Indoor Units
2.1.1 Standard indoor unit
Table 1-2.1: Standard indoor unit appearance
One-way Cassette
Two-way Cassette
Q1
Q2
Compact Four-way Cassette
Four-way Cassette
Q4C
Q4
Medium Static Pressure Duct
High Static Pressure Duct
T2
T1
Wall-mounted
Ceiling & Floor
G
DL
Floor Standing
F
2.1.2 Fresh air processing unit
Table 1-2.2: Fresh air processing unit appearance
Fresh Air Processing Unit
FA
2.2 Heat Recovery Ventilator
Table 1-2.3: Heat recovery ventilator appearance
Heat Recovery Ventilator

7
2.3 Outdoor Units
2.3.1 Single units
Table 1-2.4: Single outdoor unit appearance
8/10/12/14/16HP
(with single fan)
18/20/22HP
(with dual fans)
24/26/28/30
(with dual fans)
2.3.2 Combinations of units
Table 1-2.5: Combination outdoor unit appearance
32HP
34/36/38/HP
40/42/44/46HP
48/50/52HP
54/56/58/60HP
62HP
64/66/68HP
70/72/74/76HP

8
Table continued on next page…
Table 1-2.5: Combination outdoor unit appearance
78/80/82HP
84/86/88/90HP
3Outdoor Unit Combinations
Table 1-3.1: Outdoor unit combinations
System capacity
Number
of units
Modules1
Outdoor branch
joint kit2
kW
HP
8
10
12
14
16
18
20
22
24
26
28
30
22.4
8
1
●
—
28.0
10
1
●
33.5
12
1
●
40.0
14
1
●
45.0
16
1
●
50.0
18
1
●
56.0
20
1
●
61.5
22
1
●
67.0
24
1
●
73.0
26
1
●
78.5
28
1
●
85.0
30
1
●
90.0
32
2
●●
TODK02UTHP
95.0
34
2
●
●
101.0
36
2
●
●
106.5
38
2
●
●
112.0
40
2
●
●
118.0
42
2
●
●
123.5
44
2
●
●
130.0
46
2
●
●
134.5
48
2
●
●
140.0
50
2
●
●
146.5
52
2
●
●
151.5
54
2
●
●
157.0
56
2
●●
163.5
58
2
●
●
170.0
60
2
●●
175.0
62
3
●●
●
TODK03UTHP
179.5
64
3
●
●
●
185.0
66
3
●
●
●
191.5
68
3
●
●
●
196.5
70
3
●
●
●
202.0
72
3
●
●●
208.5
74
3
●
●
●
215.0
76
3
●
●●
218.5
78
3
●
●●
225.0
80
3
●
●
●
231.5
82
3
●
●●

9
235.5
84
3
●●●
Table continued on next page…
Table 1-3.1: Outdoor unit combinations
System capacity
Number
of units
Modules1
Outdoor branch
joint kit2
242.0
86
3
●●
●
TODK03UTHP
248.5
88
3
●
●●
255.0
90
3
●●●
Notes:
1. The combinations of units shown in the table are factory-recommended. Other combinations of units are also possible.
2. For systems with two or more outdoor units, outdoor branch joints (sold separately) are required.

10
4Combination Ratio
Table 1-5.1: Indoor and outdoor unit combination ratio limitations
Type
Minimum
combination ratio
Maximum combination ratio
Standard indoor
units only
Fresh air processing
units only
Fresh air processing units and
standard indoor units together
TVR Pro CO series ODU
50%
130%1
100%
100%2
Notes:
1. The total capacity of the indoor units can be up to a maximum of 130% of the combined capacity of the outdoor unit for a system where not all the indoor
units are operating at the same time.
2. When fresh air processing units are installed together with standard indoor units, the total capacity of the fresh air processing units must not exceed 30%
of the total capacity of the outdoor units and the combination ratio must not exceed 100%.
Table 1-5.2: Combinations of Indoor and outdoor units
Outdoor unit capacity
Sum of capacity indexes of connected
indoor units (standard indoor units
only)
Sum of capacity indexes of
connected indoor units
(fresh air processing units
and standard indoor units
together)
Maximum number of connected
indoor units
kW
HP
Capacity
index
22.4
8
224
112 to 291.2
112 to 224
13
28
10
280
140 to 364
140 to 280
16
33.5
12
335
167.5 to 435.5
167.5 to 335
20
40
14
400
200 to 520
200 to 400
23
45
16
450
225 to 585
225 to 450
26
50
18
500
250 to 650
250 to 500
29
56
20
560
280 to 728
280 to 560
33
61.5
22
615
307.5 to 799.5
307.5 to 615
36
67
24
670
335 to 871
335 to 670
39
73
26
730
365 to 949
365 to 730
43
78.5
28
785
392.5 to 1020.5
392.5 to 785
46
85
30
850
425 to 1105
425 to 850
50
90
32
900
450 to 1170
450 to 900
53
95
34
950
475 to 1235
475 to 950
56
101
36
1010
505 to 1313
505 to 1010
59
106.5
38
1065
532.5 to 1384.5
532.5 to 1065
63
112
40
1120
560 to 1456
560 to 1120
64
118
42
1180
590 to 1534
590 to 1180
123.5
44
1235
617.5 to 1605.5
617.5 to 1235
130
46
1300
650 to 1690
650 to 1300
134.5
48
1345
672.5 to 1748.5
672.5 to 1345
140
50
1400
700 to 1820
700 to 1400
146.5
52
1465
732.5 to 1904.5
732.5 to 1465
151.5
54
1515
757.5 to 1969.5
757.5 to 1515
157
56
1570
785 to 2041
785 to 1570
163.5
58
1635
817.5 to 2125.5
817.5 to 1635
170
60
1700
850 to 2210
850 to 1700
175
62
1750
875 to 2275
875 to 1750
179.5
64
1795
897.5 to 2333.5
897.5 to 1795
185
66
1850
925 to 2405
925 to 1850
191.5
68
1915
957.5 to 2489.5
957.5 to 1915
196.5
70
1965
982.5 to 2554.5
982.5 to 1965
202
72
2020
1010 to 2626
1010 to 2020
208.5
74
2085
1042.5 to 2710.5
1042.5 to 2085
Combination ratio =
Sum of capacity indexes of the indoor units
Capacity index of the outdoor units

11
215
76
2150
1075 to 2795
1075 to 2150
218.5
78
2185
1092.5 to 2840.5
1092.5 to 2185
225
80
2250
1125 to 2925
1125 to 2250
231.5
82
2315
1157.5 to 3009.5
1157.5 to 2315
235.5
84
2355
1177.5 to 3061.5
1177.5 to 2355
242
86
2420
1210 to 3146
1210 to 2420
248.5
88
2485
1242.5 to 3230.5
1242.5 to 2485
255
90
2550
1275 to 3315
1275 to 2550

12
Part 2
Component Layout and
Refrigerant Circuits
1Layout of Functional Components ....................................................... 13
2Piping Diagrams .................................................................................. 16
3Refrigerant Flow Diagrams .................................................................. 20

13
1Layout of Functional Components
8-16HP
Figure 2-1.1: 8-16HP layout of functional components
Legend
No. Parts name
1 Compressor
2 Discharge temperature sensor
3 High pressure sensor
4 Oil separator
5 Heat exchanger
6 Electronic expansion valve (EXV)
7 Fan motor
8 Fan
9 Stop valve (liquid side)
10 Stop valve (gas side)
11 Accumulator
12 Low pressure switch
13 Solenoid valve
5
6
7
8
9
12
13
13
13
11
10
3
4
2
1

14
18-22HP
Figure 2-1.2: 18-22HP layout of functional components
Legend
No. Parts name
1 Compressor
2 Discharge temperature sensor
3 High pressure sensor
4 Oil separator
5 Heat exchanger
6 Electronic expansion valve (EXV)
7 Fan motor
8 Fan
9 Stop valve (liquid side)
10 Stop valve (gas side)
11 Accumulator
12 Low pressure switch
13 Solenoid valve
5
6
7
8
7
8
13
13
13
12
11
910
3
4
2 2
1
1

15
24-30HP
Figure 2-1.3: 24-30HP layout of functional components
Legend
No. Parts name
1 Compressor
2 Discharge
temperature sensor
3 High pressure sensor
4 Oil separator
5 Heat exchanger
6
Electronic expansion
valve (EXV)
7 Fan motor
8 Fan
9 Stop valve (liquid side)
10 Stop valve (gas side)
11 Accumulator
12 Low pressure switch
13 Solenoid valve
5
6
7
8
7
8
13
13
13
12
1111
910
3
4
22
1
1

16
2Piping Diagrams
8-16HP
Figure 2-2.1: 8-16HP piping diagram
Legend
No. Parts name No. Parts name
1 Compressor 10 Stop valve (gas side)
2 Discharge temperature sensor 11 Accumulator
3 High pressure sensor 12 Low pressure switch
4 Oil separator 13 Solenoid valve
5 Heat exchanger T3 Heat exchanger temperature sensor
6 Electronic expansion valve (EXV) T4 Outdoor ambient temperature sensor
7 Fan motor SV2 Liquid injection valve
8 Fan SV4 Oil return valve
9 Stop valve (liquid side) SV7 Pressure valve
5
34
6
9
10
11
12
2
1
13 13
13
8
7EXVA
XX °C
T3
T4
XX °C
SV4
SV7
SV2

17
18-22HP
Figure 2-2.2: 18-22HP piping diagram
Legend
No. Parts name No. Parts name
1 Compressor 10 Stop valve (gas side)
2 Discharge temperature sensor 11 Accumulator
3 High pressure sensor 12 Low pressure switch
4 Oil separator 13 Solenoid valve
5 Heat exchanger T3 Heat exchanger temperature sensor
6 Electronic expansion valve (EXV) T4 Outdoor ambient temperature sensor
7 Fan motor SV2 Liquid injection valve
8 Fan SV4 Oil return valve
9 Stop valve (liquid side) SV7 Pressure valve
34
9
10
12
13
13
8
7
SV4
SV7
11
13
SV2
8
7
56
EXVA
XX°C
T3
T4
XX°C
2
1
2
1
16

18
24-30HP
Figure 2-2.3: 24-30HP piping diagram
Legend
No. Parts name No. Parts name
1 Compressor 10 Stop valve (gas side)
2 Discharge temperature sensor 11 Accumulator
3 High pressure sensor 12 Low pressure switch
4 Oil separator 13 Solenoid valve
5 Heat exchanger T3 Heat exchanger temperature sensor
6 Electronic expansion valve (EXV) T4 Outdoor ambient temperature sensor
7 Fan motor SV2 Liquid injection valve
8 Fan SV4 Oil return valve
9 Stop valve (liquid side) SV7 Pressure valve
13
SV7
13
SV2
34
12 11 11
13
SV4
2
1
2
1
9
10
8
7
8
7
56
EXVA
XX
°C
T3
T4
XX °C

19
Key components:
1. Oil separator:
Separates oil from gas refrigerant pumped out of the compressor and quickly returns it to the compressor. Separation
efficiency is up to 99%.
2. Accumulator:
Stores liquid refrigerant and oil to protect compressor from liquid hammering.
3. Electronic expansion valve (EXV):
Controls refrigerant flow and reduces refrigerant pressure.
4. Solenoid valve SV2:
Protects the compressor. If compressor discharge temperature rises above 100oC, SV2 opens and sprays a small amount
of liquid refrigerant to cool the compressor. SV2 closes again once the discharge temperature has fallen below 90oC.
5. Solenoid valve SV4:
Returns oil to the compressor. Opens once the compressor has run for 200 seconds and closes 600 seconds later and
then opens for 3 minutes every 20 minutes.
6. Solenoid valve SV7:
Allows refrigerant to return directly to the compressor. Opens when indoor air temperature is close to the set
temperature to avoid frequent compressor on/off. Opens when superheat degree is insufficient to avoid liquid hammer
to compressor.
7. Low pressure switches:
Regulate system pressure. When system pressure falls below the lower limit, the low pressure switches turn off,
stopping the compressor. After 10 minutes, the compressor restarts.