Fujitsu AB A30LBT Series User Manual

01-24
Indoor heat exchange
temperature
5. HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )
1. HIGH TEMPERATURE RELEASE CONTROL of Outdoor Unit
2. HIGH TEMPERATURE RELEASE CONTROL of Indoor Unit
On heating mode, the compressor speed is controlled as following based on the
detection value of the indoor heat exchanger temperature sensor.
(Fig.13 : Heating Overload Protection Control)
55°C
52°C
Refer to Table 14 below
4. COOLING PRESSURE OVERRISE PROTECTION
3. ANTIFREEZING CONTROL (Cooling and Dry mode)
The compressor speed is decrease on cooling & dry mode when the indoor heat exchanger
temperature sensor detects the temperature lower than Temperature .
Then, the anti-freezing control is released when it becomes higher than Temperature .
(Table 13 : Anti-freezing Protection Operation / Release Temperature)
Outdoor temperature
A zone
B zone
4°C
7°C
13°C
Temperature Temperature
When the outdoor unit heat exchange sensor temperature rises to 67°C or greater,
the compressor is stopped and trouble display is performed.After 3 minutes ST, release of protection.
10°C
12°C
A zone
B zone
It returns to the normal operation
Over than 54rps Speed down every 2minutes
(Table 14 : Compressor Operation)
Less than 54rps OFF
Indoor heat exchange
temperature
(Fig.12 : Heating Overload Protection Control)
53°C
50°C
The compressor speed is
decreased 3rps every 60seconds.
It returns to the normal operation

Fujitsu AB A30LBT Series Specifications

General

Brand	Fujitsu
Model	AB A30LBT Series
Category	Air Conditioner
Language	English