Trane 4TVH0086FE000AA Service Manual page 59

1.2.2.2 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
1.2.2.3 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 modes
ENC5
Switch 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 3-5.3 in Part 3, 5.6 "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)
Description
Description
Max. fan speed index
8-10HP 12HP 14-18HP
28 28 28
30 31 30
28 28 28
26 26 26
24 24 24
28 28 28
27 27 27
26 26 26
25 25 25
58
1
20-22HP 24-26HP 28-32HP
22 28 28
30 30 31
27 28 28
25 26 26
23 24 24
22 28 28
21 27 27
20 26 26
19 25 25
Max.
capacity
output
8-32HP
100%
80%
70%
60%
50%