Night Shift Mode; Night Shift Mode Is Enabled (Cooling Operation) - Hisense Hi-Therma Series Service Handbook

(2) Frequency Range
When Quiet Mode is enabled, the maximum Frequency of outdoor unit as follows.
Outdoor Temperature
Outdoor Unit Capacity
044(2.0HP)
060(2.5HP)
080(3.0HP)
(3) Sound pressure noise and Capacity ratio
When Quiet Mode is enabled, the sound pressure noise and capacity ratio as follows.
Outdoor Unit Capacity
044(2.0HP)
060(2.5HP)
080(3.0HP)

11.3.6 Night Shift Mode

Outdoor unit receives Night Shift enabled signal from Master Controller to reduce the unit sound noise(Refer to the Section
10.9.7 "Night Shift").
NOTE:
By setting this function ,the compressor frequency and the outdoor fan motor rotation frequency are forcibly reduced and so
the outdoor unit capacity decreases.

11.3.6.1 Night Shift Mode is enabled (Cooling operation)

(1) Outdoor Fan
The max step of outdoor fan Fomax:
Fomax = night_shift_demand/100*FoA (Fomax ≥ 6steps)
Note: FoA: See the figure below.
night_shift_demand Refer to the Section 10.9.7.
(2) Frequency Range
When Night Shift Mode is enabled, the maximum Frequency of outdoor unit as follows.
Night_shift_demand(%)
Outdoor Unit Capacity
044(2.0HP)
060(2.5HP)
080(3.0HP)
Maximum Frequency(Hz)
Ta< -15°C -15°C≤Ta<12°C 12°C≤Ta<24°C
45 30
55 40
60 40
Sound Pressure
Capacity ratio
Noise (dB)
39 60%
42 60%
43 60%
FoA
9
10
Outdoor Temperature [°C]
40 50
20 26
20 26
30 37
Control configuration for OU
24°C≤Ta
45 40
60 45
60 40
15
11
15 38 40
Maximum Frequency(Hz)
60 70
36 45
36 45
45 52
299
80 90 100
55 64
55 64
60 67
73
73
75