Fujitsu R410A Service Instruction

25. VARIOUS PROTECTIONS
1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENTION CONTROL
The discharge gas thermo sensor (discharge thermistor : Outdoor side) will detect discharge gas
temperature.
AOU18 / 24RLXFW1
219.2°F
(104°C)
213.8°F
(101°C)
230°F
(110°C)
When the discharge temperature becomes higher than Temperature
䊠
, the compressor frequency
is decreased 10rps, and it continues to decrease the frequency for 10rps every 120 seconds until
the temperature becomes lower than Temperature
䊡㻌
.
When the discharge temperature becomes lower than Temperature
䊡
, the control of the control of
the compressor frequency is released.
When the discharge temperature becomes higher than Temperature
䊢
, the compressor is stopped
and the indoor unit LED starts blinking.
( Table 24 : Discharge temperature over rise prevention control / Release temperature)
Temperature
Temperature
Temperature
2. CURRENT RELEASE CONTROL
The compressor frequency is controlled so that the outdoor unit input current does not exceeds
the current limit value that was set up with the outdoor temperature.
The compressor frequency returns to the designated frequency of the indoor unit at the time
when the frequency becomes lower than the release value.
( Table 25 : Current release operation value / Release value )
[ Heating ]
OT (Control / Release)
10.0A/ 9.5A
11.5A/ 11.0A
13.0A/ 12.5A
13.0A/ 12.5A
11.0A/ 10.5A
13.0A/ 12.5A
15.0A/ 14.5A
15.0A/14.5A
62.6°F(17°C)
53.6°F(12°C)
OT : Outdoor Temperature
41°F(5°C)
62.6°F(17°C)
53.6°F(12°C)
41°F(5°C)
AOU18RLXFW1
OT (Control / Release)
OT : Outdoor Temperature
AOU24RLXFW1
OT (Control / Release)
10.0A/ 9.5A
12.5A/ 12.0A
12.5A/ 15.0A
114.8°F(46°C)
104°F(40°C)
OT : Outdoor Temperature
12.5A/ 15.0A
53.6°F(12°C)
12.5A/ 15.0A
35.6°F(2°C)
AOU18RLXFW1
[ Cooling ]
122°F(50°C)
9.0A/ 8.5A
OT (Control / Release)
10.0A/ 9.5A
13.0A/ 12.5A
14.5A/ 14.0A
114.8°F(46°C)
104°F(40°C)
OT : Outdoor Temperature
14.5A/ 14.0A
53.6°F(12°C)
14.5A/ 14.0A
35.6°F(2°C)
AOU24RLXFW1
122°F(50°C)
9.0A/ 8.5A
䊢䊠䊡
01-18

Fujitsu R410A Specifications

General

Brand	Fujitsu
Model	R410A
Category	Air Conditioner
Language	English