Trane 4TVH0086FE000AA User manual

Service Manual
Commercial Air Conditioners
4TVH0086FE000AA
4TVH0096FE000AA
4TVH0115FE000AA
4TVH0140FE000AA
4TVH0155FE000AA
4TVH0170FE000AA
4TVH0192FE000AA
4TVH0210FE000AA
4TVH0229FE000AA
4TVH0249FE000AA
4TVH0268FE000AA
4TVH0290FE000AA
4TVH0307FE000AA
R410A

1
CONTENTS
Part 1 General Information............................................................................ 3
Part 2 Component Layout and Refrigerant Circuits ................................... 16
Part 3 Control ............................................................................................... 39
Part 4 Field Settings..................................................................................... 53
Part 5 Electrical Components and Wiring Diagrams .................................. 59
Part 6 Diagnosis and Troubleshooting......................................................... 72

2

3
Part 1
General Information
1 Indoor and Outdoor Unit Capacities ...................................................... 4
2 External Appearance ............................................................................. 6
3 Nomenclature ....................................................................................... 8
4 Combination Ratio .............................................................................. 10
5 Selection Procedure ............................................................................ 11

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
E One-way Cassette A High Static Pressure Duct
G Two-way Cassette W Wall-mounted
B Compact Four-way Cassette X Ceiling & Floor
C Four-way Cassette S, N, U Floor Standing
D Medium Static Pressure Duct
Table 1-1.2: Standard indoor unit capacity range
Capacity Capacity
index E G B C D A G X S, N, U
kW HP
1.8 0.6 18 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 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
Capacity index 125 140 200 250 280
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
8HP
4TVH0086FE000AA
10HP
4TVH0096FE000AA
12HP
4TVH0115FE000AA
14HP
4TVH0140FE000AA
16HP
4TVH0155FE000AA
18HP
4TVH0170FE000AA
20HP
4TVH0192FE000AA
22HP
4TVH0210FE000AA
24HP
4TVH0229FE000AA
26HP
4TVH0249FE000AA
28HP
4TVH0268FE000AA
30HP
4TVH0290FE000AA
32HP
4TVH0307FE000AA

6
2External Appearance
2.1 Indoor Units
2.1.1 Standard indoor units
Table 1-2.1: Standard indoor unit appearance
One-way Cassette
Two-way Cassette
E
G
Compact Four-way Cassette
Four-way Cassette
B
C
Medium Static Pressure Duct
High Static Pressure Duct
D
A
Wall-mounted
Ceiling & Floor
W
X
Floor Standing
S,N,U
2.1.2 Fresh air processing unit
Table 1-2.2: Fresh air processing unit appearance
Fresh Air Processing Unit
F
2.2 Heat Recovery Ventilator
Table 1-2.3: Heat recovery ventilator appearance
TERV

7
2.3 Outdoor Units
Table 1-2.4: Outdoor unit appearance
8/10/12HP
(with single fan)
14/16/18HP
(with single fan)
20/22HP
(with dual fans)
24/26/28/30/32HP
(with dual fans)

8
3Nomenclature
3.1 Indoor Units
3.1.1 Standard indoor units
4
T
V
E
0
0
0
7
E
F
0
0
0
A
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Legend
No. Code Remarks
1 4 R-410A
2
T
Trane
3 V TVR
4
Indoor Unit Type
E: One - Way Cassette
G: Two - Way Cassette
B: Compact Four - Way Cassette
C: Four - Way Cassette
D: Medium Static Pressure Duct
A: High Static Pressure Duct
W: Wall - Mounted
C: Ceiling & Floor
S, N, U: Floor Standing
F: Fresh air processing unit
5 0 Currently not used
6 0
Btu/h x 1000
7 0
8 7
9 E TVR Ultra
10 F 380V50-60Hz/1P
11 0 Currently not used
12 0 Currently not used
13 0 Currently not used
14 A First design sequence
15 A First service sequence

9
3.2 Heat recovery ventilator
AC Series
T
E
R
V
0
1
2
0
A
B
0
A
A
1
2
3
4
5
6
7
8
9
10
11
12
13
Legend
No. Code Remarks
1 T
Energy recovery Fan
Trane TVR
2 E
3 R
4 V
5 0
CFM
6 1
7 2
8 0
9 A TVR
10 B 1: 380V/60Hz/1Ph
B: 380/50Hz/1Ph
11 0 Currently not used
12 A First design sequence
13 A First service sequence
3.3 Outdoor Units
4
T
V
H
0
0
8
6
F
E
0
0
0
A
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Legend
No. Code Remarks
1 4 R-410A
2 T Trane
3 V Air Cooled
4 H Heat Pump
5 0 Currently not used
6 0
Btu/h x 1000
7 8
8 6
9 F TVR Ultra-S
10 E 380V50-60Hz/1P
11 0 Currently not used
12 0 Currently not used
13 0 0: Standard
C: Corrosion treatment
14 A First design sequence
15 A First design sequence

10
4Combination Ratio
Table 1-4.1: 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
V6-i Series outdoor units
50%
130%
100%
100%1
Notes:
1. 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 capacity of the outdoor unit and the combination ratio must not exceed 100%.
Table 1-4.2: 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
25.2
8
252
126 to 327.6
126 to 252
13
28.0
10
280
140 to 364
140 to 280
16
33.5
12
335
167.5 to 435.5
167.5 to 335
20
40.0
14
400
200 to 520
200 to 400
23
45.0
16
450
225 to 585
225 to 450
26
50.0
18
500
250 to 650
250 to 500
29
56.0
20
560
280 to 728
280 to 560
33
61.5
22
615
307.5 to 799.5
307.5 to 615
36
67.0
24
670
335 to 871
335 to 670
39
73.0
26
730
365 to 949
365 to 730
43
78.5
28
785
392.5 to 1020.5
392.5 to 785
46
85.0
30
850
425 to 1105
425 to 850
50
90.0
32
900
450 to 1170
450 to 900
53
Combination ratio =
Sum of capacity indexes of the indoor units
Capacity index of the outdoor unit

11
5Selection Procedure
5.1 Procedure
Step 1: Establish design conditions
Step 2: Select indoor units
Step 3: Select outdoor unit
Notes:
1. If the indoor design temperature falls between two temperatures listed in the indoor unit's capacity table, calculate the corrected capacity by
interpolation. If the indoor unit selection is to be based on total heat load and sensible heat load, select indoor units which satisfy not only the total
heat load requirements of each room but also the sensible heat load requirements of each room. As with total heat capacity, the sensible heat capacity
of indoor units should be corrected for indoor temperature, interpolating where necessary. For the indoor unit capacity tables, refer to the indoor unit
technical manuals.
Yes
Design temperature and humidity (indoor and outdoor)
Required heat load of each room
System peak load
Piping length, level differences
Indoor unit specifications (type and quantity)
Decide indoor unit safety factor
Select indoor unit models ensuring that:
Indoor unit capacity corrected for indoor air temperature WB1≥Required heat load × Indoor unit safety factor
Determine required total heat load on the outdoor unit
Use the sum of the peak load of each room
Use the system peak load
Provisionally select outdoor unit capacity based on combination ratio limitations
Confirm that the number of indoor units connected to the outdoor unit is within limitation
Correct cooling and heating capacities of the outdoor unit for the following items:
Outdoor air temperature / Indoor air temperature WB / Combination ratio / Piping length, level
difference / Piping heat loss / Frost accumulation (for heating capacity only)
Is corrected outdoor unit capacity ≥Required total heat load on outdoor unit?
TVR system selection is complete
No

12
5.2 Example
The following is a selection example based on total heat load for cooling.
Figure 1-5.1: Room plan
Room A Room H Room G Room F
Room B Room E
Room C Room D
Step 1: Establish design conditions
Indoor air temperature 25°C DB, 18°C WB; outdoor air temperature 33°C DB.
Determine peak load of each room and system peak load. As shown in Table 1-5.1, the system peak load is 50.7kW.
Table 1-5.1: Required heat load of each room (kW)
Time Room A Room B Room C Room D Room E Room F Room G Room H Total
9:00 4.8 4.8 3.0 3.0 9.1 9.0 2.9 2.9 39.5
12:00 6.6 7.1 5.1 5.1 7.4 6.8 4.0 4.0 46.1
14:00 9.0 9.4 4.9 4.9 7.3 6.8 4.2 4.2 50.7
16:00 10.6 10.7 3.9 3.9 6.3 6.2 3.8 3.8 49.2
The maximum piping lengths and level differences in this example are as given in Figure 1-5.2.
Figure 1-5.2: System diagram
Indoor unit type for all rooms: Medium Static Pressure Duct (T2).
Step 2: Select indoor units
In this example, a safety factor is not used (i.e. the safety factor is 1).
Select indoor unit models using the medium static pressure duct cooling capacity table. Each indoor unit's corrected
capacity needs to be greater than or equal to the peak load of the relevant room. The selected indoor units are
shown in Table 1-5.3.
Equivalent length of piping 60m
Level
difference
40m
Outdoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit

13
Table 1-5.2: Extract from medium static pressure duct (T2) cooling capacity table
Model
Capacity
index
Indoor air temperature
14°C WB 16°C WB 18°C WB 19°C WB 20°C WB 22°C WB 24°C WB
20°C DB 23°C DB 26°C DB 27°C DB 28°C DB 30°C DB 32°C DB
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
T2
22 1.5 1.4 1.8 1.5 2.1 1.6 2.2 1.6 2.3 1.7 2.4 1.5 2.4 1.5
28 1.9 1.7 2.3 1.9 2.6 2.1 2.8 2.1 3.0 2.1 3.1 2.0 3.1 1.9
36 2.5 2.1 2.9 2.3 3.4 2.5 3.6 2.6 3.8 2.7 4.2 2.8 3.9 2.3
45 3.1 2.6 3.7 2.8 4.2 3.1 4.5 3.2 4.8 3.2 4.9 3.1 5.1 2.9
56 3.9 3.0 4.6 3.3 5.3 3.6 5.6 3.7 5.9 3.8 6.2 3.7 6.2 3.4
71 4.9 3.9 5.8 4.3 6.7 4.7 7.1 4.9 7.5 4.8 7.8 4.6 7.8 4.3
80 5.5 4.4 6.6 4.9 7.5 5.3 8.0 5.5 8.4 5.5 8.8 5.2 8.8 4.8
90 6.2 5.3 7.3 5.8 8.4 6.3 9.0 6.4 9.6 6.5 9.9 6.1 9.9 5.7
112 7.7 6.4 9.1 7.1 10.5 7.7 11.2 7.8 11.9 8.1 12.5 7.8 12.5 7.4
140 9.7 7.8 11.3 8.6 13.2 9.6 14.0 9.8 14.8 9.8 15.7 9.7 15.4 8.8
Abbreviations:
TC: Total capacity (kW); SHC: Sensible heat capacity (kW)
Table 1-5.3: Selected indoor units
Room A Room B Room C Room D
Peak heat load (kW) 10.6 10.7 5.1 5.1
Selected indoor unit 4TVD0048EF000AA 4TVD0048EF000AA 4TVD0018EF000AA 4TVD0018EF000AA
Corrected TC (kW) 13.2 13.2 5.3 5.3
Room E Room F Room G Room H
Peak heat load (kW) 9.1 9.0 4.2 4.2
Selected indoor unit 4TVD0038EF000AA 4TVD0038EF000AA 4TVD0015EF000AA 4TVD0015EF000AA
Corrected TC (kW) 10.5 10.5 4.2 4.2
Step 3: Select outdoor unit
Determine the required total heat load from the indoor units to the outdoor unit based on either the sum of the
peak loads of each room or the system peak load. In this example, it is determined based on the system peak load.
Therefore, the required heat load is 50.7kW.
Provisionally select an outdoor unit using the sum of the capacity indexes (CIs) of the selected indoor units (as
shown in Table 1-5.4), ensuring that the combination ratio is between 50% and 130%. Refer to Table 1-5.5. As the
sum of CIs of the indoor units is 706, outdoor units from 20HP to 32HP are potentially suitable. Start from the
smallest, which is the 20HP unit.
Table 1-5.4: Sum of indoor unit capacity indexes
Model Capacity Index No. of units
4TVD0048EF000AA 140 2
4TVD0038EF000AA 112 2
4TVD0018EF000AA 56 2
4TVD0015EF000AA 45 2
Sum of CIs 706

14
Table 1-5.5: Extract from 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)
Maximum number of
connected indoor
units
kW HP
Capacity
index
50.0
18
500
250 to 650
29
56.0
20
560
280 to 728
33
61.5
22
615
307.5 to 799.5
36
67.0
24
670
335 to 871
39
73.0
26
730
365 to 949
43
78.5
28
785
392.5 to 1020.5
46
85.0
30
850
425 to 1105
50
90.0
32
900
450 to 1170
53
The number of connected indoor units is 8 and the maximum number of connected indoor units on the 20HP
outdoor unit is 33, so the number of connected indoor units is within the limitation.
Calculate the corrected capacity of the outdoor unit:
a) The sum of the indoor unit CIs is 706 and the CI of the 20HP outdoor unit (4TVH0192FE000AA) is 560, so the
combination ratio is 706 / 560 = 126%.
b) Using the outdoor unit’s cooling capacity table, interpolate to obtain the capacity (“B”) corrected for outdoor
air temperature, indoor air temperature, and combination ratio. Refer to Tables 1-5.6 and 1-5.7.
Table 1-5.6: Extract from Table 2-8.7 4TVH0192FE000AA
cooling capacity
Table 1-5.7: Cooling capacity calculated by
interpolation
CR
Outdoor
air
temp.
(°C DB)
Indoor air temp.
(°C DB / °C WB)
CR
Outdoor
air
temp.
(°C DB)
Indoor air temp.
(°C DB / °C WB)
25.8 / 18.0
25.8 / 18.0
TC
PI
TC
PI
kW
kW
kW
kW
130%
31
61.3
14.33
130%
33
60.4
14.88
33
60.4
14.88
35
59.5
15.46
B = 601
120%
31
60.2
13.88
120%
33
59.3
14.44
33
59.3
14.44
35
58.4
15.00
Notes:
1. 59.3 + (60.4 – 59.3) × (126 – 120) / (130 – 120) = 60.

15
c) Find the correction factor for piping length and level difference (“K1”)
Figure 1-5.3: V6-i rate of change in cooling capacity
Notes:
1. The horizontal axis shows equivalent length of piping between farthest indoor unit and
first outdoor branch joint; the vertical axis shows the largest level difference between
indoor unit and outdoor unit. For level differences, positive values indicate that the
outdoor unit is above the indoor unit, negative values indicate that the outdoor unit is
below the indoor unit.
d) Calculate the corrected capacity of 4TVH0192FE000AA (“C”) by using K1:
C = B × K1 = 60 × 0.898 = 53.8kW
The corrected capacity 53.8kW is larger than required total heat load 50.7kW, so selection is complete. (In the event
that the corrected capacity is lower than the required total heat load, Step 3 should be repeated from the point
where the outdoor unit capacity is provisionally selected.)
90
-90
-100
-110
80
-80
70
-70
60
-60
50
-50
40
-40
30
-30
20
-20
10
10
1.0
0.97
0.95
0.92
0.90
0.87
0.85
0.84
0.81 0.80 0.78 0.78 0.77 0.76
1.0
0.97
0.95
0.92
0.90
0.87
0.85
0.84
0.81 0.80 0.78 0.78 0.77
20 30 40 50 60 70 80
K1 = 0.898
90 100 110 120 130 140 150 160 170 180 190 200
-10
0
0

16
Part 2
Component Layout and
Refrigerant Circuits
1Layout of Functional Components ....................................................... 17
2Piping Diagrams .................................................................................. 23
3Refrigerant Flow Diagrams .................................................................. 29

17
1Layout of Functional Components
8/10/12HP
Figure 2-1.1: 8/10/12HP layout of functional components
Legend
No. Parts name
1 Compressor
2 Discharge temperature switch
3 High pressure switch
4 High pressure sensor
5 Oil separator
6 Four-way valve
7 Heat exchanger
8 Electronic expansion valve (EXV)
9 Low pressure switch
10 Fan motor
11 Fan
12 Stop valve (liquid side)
13 Stop valve (gas side)
14 Plate heat exchanger
15 Accumulator
15
5
6
7
8
12 13 14
11
9
10
34 2 1

18
14/16/18HP
Figure 2-1.2: 14/16/18HP layout of functional components
Legend
No. Parts name
1 Compressor
2 Discharge temperature switch
3 High pressure switch
4 High pressure sensor
5 Oil separator
6 Four-way valve
7 Heat exchanger
8 Electronic expansion valve (EXV)
9 Low pressure switch
10 Fan motor
11 Fan
12 Stop valve (liquid side)
13 Stop valve (gas side)
14 Plate heat exchanger
15 Accumulator
15
5
6
7
8
9
12 13 14
11
9
10
3
421

19
20/22HP
Figure 2-1.3: 20/22HP layout of functional components
Legend
No. Parts name
1 Compressor
2 Discharge temperature switch
3 High pressure switch
4 High pressure sensor
5 Oil separator
6 Four-way valve
7 Heat exchanger
8 Electronic expansion valve (EXV)
9 Low pressure switch
10 Fan motor
11 Fan
12 Stop valve (liquid side)
13 Stop valve (gas side)
15 Accumulator
15
56
7
8
9
12 13
11
9
10
3
421