Protection Control
SiEBE18-526
72
Function
4.5
Freeze-up Protection Control
Outline
According to the freeze prevention status sent from the BP unit. The compressor output
frequency is regulated to decrease the compressor capacity in order to prevent the indoor heat
exchanger from freezing.
Detail
Zones are produced based on the freeze prevention status signal sent from the BP unit (Indoor
unit), and the freeze prevention control prevents freezing of the indoor unit.
Recovery zone: Lift the control
Increase zone: 1 step up/60sec.
Keep zone: Frequency is not controlled
Decrease zone: 1 step down/60sec.
Stop zone: Thermostat-OFF (only the target indoor unit)
The temperature in above figure depends on models. (Reference value)
°C
13
7
5
3
0
Recovery zone
Increase zone
Keep zone
Decrease zone
Stop zone
Indoor
unit heat e
xchanger
temper
ature
Summary of Contents for Super Multi Plus D-Series
Page 1: ...SiEBE18 526 D Series Service Manual Applied Models zSuper Multi Plus Heat Pump...
Page 12: ...SiEBE18 526 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 63: ...Refrigerant Flow for Each Operation Mode SiEBE18 526 52 Refrigerant Circuit...
Page 249: ...Instruction SiEBE18 526 238 System Configuration...
