Special Control
SiME341909EA
70
Part 4 Functions and Control
7.3 Inverter Pre-Heat Control
Inverter pre-heat control is performed by each compressor on its own.
HTdi : Value of compressor discharge pipe temperature (Tdi) compensated with outdoor air
temperature
Ta : Outdoor air temperature
Teg : Low pressure equivalent saturation temperature (°C)
Tfin : Fin thermistor temperature
1) System is stopped (all compressors are stopped)
2) System is operating (at least one compressor is operating)
∗
Represents the operating state of each compressor.
· Own Tfin
侒
95°C
· Own Tfin
侑
85°C
OR
· Elapsing time after
power supply ON
6 hours
· Own compressor HTdi
Teg + 15
&
· Ta
25°C
&
· Elapsing time after
power supply ON
侒
6 hours
OR
· Own compressor HTdi
Teg + 20
· Ta
26°C
Power supply ON
Pre-heat OFF
Pre-heat OFF
Pre-heat ON
· Own compressor HTdi
Teg + 15
· Compressor is stopped (
)
&
· Each compressor HTdi
Teg + 20
· Compressor is operating (
)
OR
Pre-heat OFF
Pre-heat ON
Pre-heat OFF
· Own Tfin
68°C
· Own Tfin
侒
78°C
Содержание VRV X RXQ6-48ANR Series
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