Trane 4TVH0086FE000AA Service Manual page 58

3. VIP priority mode or voting priority mode: The default VIP address is 63, and the VIP address also can be changed
through menu mode, refer to Part 5, 2.2.3 "Menu mode" Table 5-2.3 "nb8". If the VIP indoor unit is operating, the
outdoor unit operates in the mode of the VIP indoor unit. Indoor units that are in a mode different to that of the VIP
unit display the mode conflict error. If there is no unit with VIP address or the VIP unit is in standby, the outdoor unit
operates in voting priority mode. In voting priority mode, the outdoor unit operates in whichever of heating and
cooling modes is being requested by the larger number of indoor units.
4. Heating only mode: The outdoor unit only operates in heating mode. Indoor units requesting heating operate in
heating mode. Indoor units requesting cooling or in fan only mode display the mode conflict error.
5. Cooling only mode: The outdoor unit only operates in cooling mode. Indoor units requesting cooling operate in
cooling mode; indoor units in fan only mode operate in fan only mode. Indoor units requesting heating display the
mode conflict error.
1.2.2 Silent time setting
1.2.2.1 Night silent time setting
Night silent mode is activated X hours after the peak daytime temperature, and is deactivated after Y hours, where X and Y
are as specified in Table 4-1.2.
Maximum
output
Load
Operation
sound dB
Table 4-1.2: Night silent time setting
Switch Switch positions
0
ENC5
1
2
3
Figure 4-1.4: Night silent mode example (default setting, 6h/10h)
The outdoor unit senses the peak daytime
outdoor ambient temperature
8:00
Description
Night silent time is 6h/10h (default)
Night silent time is 6h/12h
Night silent time is 8h/10h
Night silent time is 8h/12h
6
Max. 15dB
reduction
14:00 20:00
Night silent
mode activated
57
X
6 10
6 12
8 10
8 12
10
6:00
Night silent mode
deactivated
Y