Trane TVR Pro CO Series Service Manual page 39

1.2.1.2 Silent mode setting
In silent mode 1 / 2 / 3 and night silent mode, the outdoor fan speed decreases gradually. In super silent mode 1 / 2 / 3 / 4,
not only the fan speed decreases gradually, but also the compressor frequency decreases gradually.
Table 4-1.3: Silent mode setting
Switch
ENC5
1.2.1.3 Maximum fan speed and capacity output control in different silent mode
Table 4-1.4: Maximum fan speed and capacity output control in different silent mode
ENC5
Switch Description
positions
0 Night silent time is 6h/10h (default)
1 Night silent time is 6h/12h
2 Night silent time is 8h/10h
3 Night silent time is 8h/12h
4 No silent mode
5 Silent mode 1
6 Silent mode 2
7 Silent mode 3
8 Super silent mode 1
9 Super silent mode 2
A Super silent mode 3
B Super silent mode 4
Notes:
1. Fan speed (rpm) for different fan speed index refers to Table 3-4.2 in Part 3, 4.6 "Outdoor Fan Control".
2. If the system pressure is over 3.5MPa, the system exits silent mode automatically.
Switch positions
5 Silent mode 1 (only limit max. fan speed)
6 Silent mode 2 (only limit max. fan speed)
7 Silent mode 3 (only limit max. fan speed)
8 Super silent mode 1 (limit max. fan speed and compressor frequency)
9 Super silent mode 2 (limit max. fan speed and compressor frequency)
A Super silent mode 3 (limit max. fan speed and compressor frequency)
B Super silent mode 4 (limit max. fan speed and compressor frequency)
8-10HP
28
29
28
26
24
28
27
26
25
Description
Max. fan speed index
12HP 14-16HP 18HP
28 30 29
30 33 33
28 30 31
26 28 29
24 27 27
28 29 23
27 28 22
26 27 21
25 26 20
38
1
20-22HP 24-26HP 28-30HP
29 31 31
35 33 35
31 31 31
29 29 29
27 27 27
23 28 28
22 27 27
21 26 26
20 25 25
Max.
capacity
output
8-30HP
100%
80%
70%
60%
50%