3. ANTIFREEZING CONTROL (Cooling and Dry mode)
The compressor frequency 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 .
(Table19 : Anti-freezing Protection Operation / Release Temperature)
4. COOLING PRESSURE OVERRISE PROTECTION
When the outdoor unit heat exchange sensor temperature rises to 152.6°F (67°C) or greater,
the compressor and the outdoor fan motor are stopped and trouble display is performed.
5. HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )
On heating mode, the compressor frequency is controlled as following based on the
detection value of the indoor heat exchanger temperature sensor.
01-17
Indoor heat exchange
temperature
[ Control System ]
It returns to the normal operation
127.4°F
(53°C)
122°F
(50°C)
Outdoor temperature
Over than 50°F(10°C)
*1
or 53.6°F(12°C)
*2
Less than 50°F(10°C)
*1
or 53.6°F(12°C)
*2
*1. When the temperature rises.
*2. When the temperature drops.
39.2°F (4°C)
44.6°F (7°C)
55.4°F (13°C)
Temperature
Temperature
The compressor frequency is
decreased 3rps every 60seconds.
Summary of Contents for 9RLF
Page 3: ...1 DESCRIPTION OF EACH CONTROL OPERATION R410A WALL MOUNTED type INVERTER ...
Page 21: ...2 TROUBLE SHOOTING R410A WALL MOUNTED type INVERTER ...
Page 54: ...3 APPENDING DATA R410A WALL MOUNTED type INVERTER ...
Page 60: ...1116 Suenaga Takatsu ku Kawasaki 213 8502 Japan Sep 2010 Printed in Japan ...
